Tensioning assembly for tensioning chains

BE1033205B1Active Publication Date: 2026-07-23INTERNATIONAL LASHING SYSTEMS NV
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Patent Information

Authority / Receiving Office
BE · BE
Patent Type
Patents
Current Assignee / Owner
INTERNATIONAL LASHING SYSTEMS NV
Filing Date
2024-12-18
Publication Date
2026-07-23

AI Technical Summary

Technical Problem

Existing chain tensioning systems lack accuracy and safety in achieving the correct tension, often leading to inefficiencies and potential damage due to over-tensioning or improper installation.

Method used

A tensioning assembly with an integrated chain tensioner body and lever system that includes recesses for precise link alignment, a lever for detecting predetermined tension, and a safety mechanism to prevent over-tensioning, ensuring accurate and safe chain tensioning.

Benefits of technology

The system provides clear indication of correct tension, enhances safety by preventing over-tensioning, and improves efficiency through precise force distribution and user-friendly operation.

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Abstract

A tensioning assembly for tensioning at least one chain, consisting of a chain tensioner with a chain tensioner body and a first fastening element. The chain tensioner body has a first and second connecting part that are positioned at a certain distance from each other and can be connected to a first and second link of the chain, respectively. The chain tensioner body can move between a first and second position. In the second position, the links are moved in opposite directions to tension the chain. A lever is connected to the chain tensioner body and moves it from the first to the second position. The lever indicates when the second position is reached at a predetermined tension. In the second position, the first fastening element can be connected to a third link to secure the chain tensioner.
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Description

2 positions, where in the first position, the first link connectable to the first connecting part, and the second link connectable to the second connecting part, where during the movement of the chain tensioner body from the first position to the second position, the first connecting part and the second connecting part cause the first link and the second link to move in opposite directions relative to each other in order to tension the chain at least 5; and a lever connected to the chain tensioner body, where the lever is designed to move the chain tensioner body from the first position to the second position and is designed to indicate that the second position is reached when the lever detects a predetermined tension of the chain at least 10, and where in the second position, the first fastening element connectable to a third link of several 10 to attach the link stones at the end of the chain tensioner in the second position. An advantage of the tensioning assembly is that it gives the user a clear indication when the correcttension is achieved, which improves the accuracy and safety of tensioning. Preferably, the chain tensioner body is elongated and the chain tensioner body extends between the first and second ends of the chain tensioner body. An elongated chain tensioner body that extends between a first and second end offers the advantage of improved leverage. This example design makes it possible to apply greater force to the chain with less effort, which makes tensioning more efficient and less strenuous for the user. This design can also improve the stability of the chain tensioner during use, which increases safety and reduces the risk of accidents. Preferably, the chain tensioner body forms the first and second connecting parts. When the chain tensioner body forms both the first and the second connecting part, this offers the advantage of an integrated design that reduces the complexity and number of separate parts. This can lead to a more robust and durablesystem, because there is less chance of wear or defects at individual connections. Moreover, such an integrated design can simplify production and assembly, which can result in lower production costs and a more efficient production process. This also reduces the chance of errors during disassembly, which increases the reliability and consistency of the chain tensioner. Preferably, the first distance is measured along a longitudinal axis of the chain tensioner body. Preferably, the first connecting part and the second connecting part form a 35 first recess and a second recess respectively for receiving the first link BE2024 / 5910 3 and the second link respectively. When the first connecting part and the second connecting part form a first recess and a second recess respectively for receiving the first and second link, this offers the advantage of accurate and safe positioning of the links within the chain tensioner. These recesses ensure that the links are firmly ontheir position is held during tensioning, which increases the stability and safety of the assembly. This reduces the risk of unwanted movement or shifting of the links, which can contribute to an even distribution of tension over the chain. Furthermore, the use of recesses can facilitate the installation and removal of the chain, thereby improving the efficiency of the chain tensioner. Preferably comprising a first recess and the second recess respectively a first opening and a second opening, where the first opening and the second opening are oriented in opposite directions. When the first recess and the second recess respectively comprise a first opening and a second opening oriented in opposite directions, this offers the specific advantage that the links can be tightened in opposite directions. This makes it possible to tighten the chain with efficient and even tension, because the forces act in opposite directions. Thiscontributes to a more stable and secure attachment of the chain, because the risk of the links shifting or coming loose is reduced. Moreover, this example design can improve the effectiveness of tensioning by optimally utilizing the forces, resulting in a reliable and consistent tensioning process. Preferably, a first dimension of the first opening and the second opening correspond approximately to the second opening of the first link and the second link, respectively.25 When a first dimension of the first opening and the second opening correspond approximately to the second opening of the first link and the second link, respectively, this offers the advantage of an accurate and firm fit between the links and the chain tensioner. This precise alignment ensures that the links are held firmly in the openings, which increases the stability and safety of the connection. By aligning the dimensions to each other, the risk of unwanted movement or play is reduced, whichcontributes to an efficient and reliable tightening process. This design can also facilitate installation, as the links fit intuitively into the openings without additional adjustments, which improves the tightening speed. 35 BE2024 / 5910 4 Preferably, the first attachment element is connected to the chain tensioner body at one-third of the distance from the first end, preferably at the second end. When the first attachment element is connected to the chain tensioner body at one-third of the distance from the first end, preferably at the second end, this offers the advantage that the attachment element can be easily coupled to the chain. This distance ensures that there is sufficient space to easily attach the chain to the attachment element and later detach it again. This facilitates the use of the chain tensioner, because the process of attaching and detaching requires less effort and time. This increases ease of use and improves the efficiency of the tensioning and detaching process. 10Preferably, the lever is detachable from the chain tensioner body. When the lever is detachable from the chain tensioner body, this offers the advantage of flexibility and ease of use. This makes it possible to easily attach and remove the lever, which is convenient for storage and transport of the chain tensioner. The detachable design can also contribute to the versatility of the tensioning assembly, as the lever can be replaced or adapted to specific usage needs without having to replace the entire chain tensioner body. When the lever is detachable from the chain tensioner body, this offers not only flexibility and ease of use, but also the possibility to use the lever with other chain tensioners. This increases the versatility of the lever, as it is compatible with different systems, which can be cost-saving because fewer specific parts are required for different applications. applications. It also makes it easier to divide the lever between differentchain tensioners, which can be useful in situations where multiple systems are in use. This interoperability can improve the efficiency of the work process and reduce the need to purchase multiple levers, which is both practical and economically advantageous. Preferably, the lever comprises a lever body, a lever head, a coupler, and at least one elastic element, where the lever body extends between a first lever body end and a second lever body end; where the lever head is pivotally connected to the first lever body end and rigidly connectable to the second end on one side, and where the lever head is connected to the coupler on the other side; where at least one elastic element is designed to exert a predetermined pressure on the coupling piece, such that when a moment, which moment is exerted by the lever head at the second end or vice versa during the movement from the first position to the second position, exceeds the predetermined pressure, the connection between the coupling piece and BE2024 / 5910 5lever head is at least partially broken. The lever body extending between a first and a second lever body end provides a robust structure that can effectively transmit the forces during tensioning. The pivotable connection of the lever head to the first lever body end and the rigid connection to the second end offer a combination of flexibility and stability, allowing the lever head to move accurately and transmit the forces efficiently. The connection of the lever head to the coupling piece, together with the elastic element that exerts a predetermined pressure, introduces a safety mechanism. This mechanism ensures that when the applied moment exceeds the predetermined pressure, the connection between the coupling piece and the lever head is at least partially broken. This offers the advantage of protection against overload, as the system can automatically react to excessive forces, which prevents damage to the chain tensioner and chain. This configuration makes it possible to the tensionto control accurately and offers an extra layer of safety for the safe and efficient tensioning of chains. 15 Preferably, the coupling comprises an intermediate piece and a tilting component, where the tilting component is tiltably mounted between the lever and the intermediate piece, where the intermediate piece is designed to transmit the predetermined pressure to the tilting component and the lever head, where the tilting component is designed to tilt when the predetermined pressure is exceeded in order to partially break the connection between the coupling and the lever head at least 20. When the coupling comprises an intermediate piece and a tilting component, this offers a sophisticated mechanism that further improves the safety and functionality of the chain tensioner. The tilting component, which is tiltably mounted between the lever and the intermediate piece, ensures a dynamic connection that can respond to changes in pressure. The intermediate piece is designed to transmit the predetermined pressure to both the tilting component 25 and the lever head, thereby enabling a controlled transfer of forces. TheThe tilting component is designed to tilt when the predetermined pressure is exceeded, resulting in the partial disconnection of the connection between the coupling piece and the lever head. This offers the advantage of a built-in safety mechanism that protects against overloading. By tilting upon exceeding the pressure, the tilting component prevents excessive forces from causing damage to the chain tensioner or the chain itself. This configuration ensures automatic disengagement in the event of excessive tension, which increases the reliability and service life of the system. It offers an effective way to control tension and absorb unwanted force changes, which is essential for the safe and efficient use of the chain tensioner.35 BE2024 / 5910 6 Preferably, the predetermined pressure corresponds to a predetermined desired tension on the chain. When the predetermined pressure corresponds to a predetermined desired tension on the chain, this offers the advantage of an accurate and consistenttension regulation. This alignment ensures that the chain is always brought to the correct tension, which is essential for the safety and stability of the load. By precisely adjusting the pressure to the desired tension of the chain, the risk of excessive tension and the resulting damage or safety problems on the chain is significantly reduced. Preferably, the lever head is elongated. Preferably, at least one elastic element is a spring. Preferably, the first lever body contains a cavity at the end and the lever head is partially housed in the cavity. Preferably, the lever head further contains a recess, where the recess is designed to receive the tilting component and to enable tilting of the tilting component. Preferably, the intermediate piece contains a further recess, where the further recess is designed to receive the tilting component and to enable tilting of the tilting component. Preferably, the lever further comprises a handle at the second lever body end,where the handle is designed to move the chain tensioner body from the first position to the second position.25 Preferably, the lever further includes a pressure adjustment mechanism, whereby the pressure adjustment mechanism is designed so that the predetermined pressure is adjustable. When the lever further includes a pressure adjustment mechanism, this offers the advantage of flexibility and control over the tension exerted on the chain. The pressure adjustment mechanism30 makes it possible to adjust the predetermined pressure, so that the tension on the chain can be optimized for different conditions and loads. This adjustability ensures that the chain tensioner is versatile and can be tailored to specific requirements, which increases the usability and efficiency of the system. By easily adjusting the pressure, users can react quickly to changing situations and ensure that the chain35 BE2024 / 5910 7 is always tightened with the correct tension. This reduces the risk of damage causedexcessive tensions and increases the safety and reliability of the tensioning process. Preferably, the chain tensioner further comprises a first connecting component, whereby the first connecting component connects the first fastening element to the chain tensioner body.5 Preferably, the first connecting component is virtually non-elastically deformable. Preferably, the first connecting component is a first fastening chain. Preferably, the chain tensioner comprises a second fastening element that is connected to the 10 chain tensioner body between the first end and the first fastening element. Preferably, the chain tensioner further comprises a second connecting component. Preferably, the second connecting component connects the second fastening element to the 15 chain tensioner body. Preferably, the second connecting component is virtually non-elastically deformable. Preferably, the second connection component is a second fastening chain.20 Preferably, the tensioning assembly further comprises an extension piece fitted betweenthe chain tensioner body and the lever. Preferably, the extension is detachable and connectable to the chain tensioner body.25 Preferably, the extension is detachable and connectable to the lever. Preferably, the extension comprises an extension body, a first coupling element, and a second coupling element.30 Preferably, the extension body is elongated and the extension body extends between a first extension end and a second extension end. Preferably, the extension body forms the first coupling element and the second coupling element.35 BE2024 / 5910 8 Preferably, the first coupling element and the second coupling element are located at a distance from each other. Preferably, the extension body partially overlaps with the chain tensioner body in the connected state.5 Preferably, the distance between the first coupling element and the second coupling element is 200 mm to 250 mm, preferably 215 mm to 230 mm. Preferably, the distance between the first extension end and the second extension end is 600mm to 1200mm, preferably 850mm to 950mm.Preferably, the chain tensioner body has a length of 500 mm to 650 mm, preferably 575 mm to 595 mm. 15 A chain tensioner for tensioning at least one chain, comprising the chain tensioner: a movable chain tensioner body, where the chain tensioner body comprises a first end and a second end, where the first end is provided with a first connecting part and a second connecting part located at a distance from each other, where the chain tensioner body is movable between a first position and a second position; a first 20 fastening element connected to the chain tensioner body; and a lever connected to the body. A method for tensioning at least one chain, where the at least one chain comprises multiple links that are respectively connected to one another, comprising: providing a tensioning assembly in accordance with one of the preceding conclusions, connecting a first link of multiple links to the first connecting part, connectinga second link of several links with the second connecting part, moving the chain tensioner body from a first position to a second position with the lever, whereby the first connecting part and the second connecting part cause the first link and the second link to move in opposite directions relative to each other in order to tension the minimum chain, sensing with the aid of the lever a predetermined tension on the minimum chain, indicating with the aid of the lever when the second position is reached when the lever detects a predetermined tension of the minimum chain, connecting the first fastening element with the third link and 35 to secure the chain tensioner in the second position. BE2024 / 5910 9 Short Figure Description The above and other advantageous properties and purposes of the invention will become clearer and the invention will be better understood by means of the following detailed description when read in combination with the drawings in the appendix, in which:Figure 1 shows a side view of an example design of a tensioning assembly; Figure 2 shows a side view of a further example design of a tensioning assembly; Figure 3 shows a side view of a further example design of a tensioning assembly; Figure 4 shows a cross-section of an example design of a lever in a first state; Figure 4 shows a cross-section of an example design of a lever in a second state; Figure 5 shows an example design of a chain to be tensioned; Figure 5 shows the tensioning assembly shown in Figure 1 in a first position; Figure 5 shows the tensioning assembly shown in Figure 1 in a second position; Figure 5 shows a tensioning assembly that is attached in the second position; Figure 6 shows a side view of an example design of a chain tensioner. Detailed forms of implementation The following detailed description focuses on certain specific forms of implementation, however, the learning herein is applied in different ways.The present invention shall be described with respect to specific embodiment and the invention is however not limited thereto, but only by the claims. As used herein, encompassing the singular form "a", "the" and "the", as well as the singular and plural references unless the context clearly dictates otherwise.30 The terms "encompassing", "includes" and "composed of", as used herein, are synonymous with "inclusive", "includes" or "containing", "contains". The terms "encompassing", "includes" and "composed of", when referring to the said components, elements or procedure steps, also include execution forms that "consist of" the components, elements or procedure steps.35 BE2024 / 5910 10 Furthermore, the terms first, second, third and furthermore are used in the descriptions and conclusions to distinguish between comparable elements and not necessarily for describing a consecutive or chronological order, unless this is specified. It is clear that the terms thus used are interchangeable.subordinate circumstances and that the forms of execution of the invention described herein5 can operate in a different order than described or illustrated herein. Reference in this specification to "one version", "a version", "some aspects", "an aspect" or "one aspect" means that a specific feature, structure or feature described in connection with the version or aspect is included in at least one version of the present invention. The forms of appearance of the phrases "in one version", "in one version", "some aspects", "an aspect" or "one aspect" at different places in this specification therefore do not necessarily all refer to the same version or aspects. Furthermore, the specific features, structures or features may be combined in any suitable manner, as will be clear to a professional in this field, into one or more versions or aspects. Furthermore, although some versions or aspects described herein comprise some but no other features, those in otherembodiments and / or aspects are included, combinations of characteristics of different embodiments and / or aspects intended to fall within the context of the invention and to form different embodiments or aspects, as would be understood by the skilled person. In the attached claims, for example, all characteristics of the claimed embodiments and / or aspects can be used in any combination. In the figures, the same reference number is assigned to the same or analogous element. Figure 1 shows an example embodiment of a tensioning assembly. Figure 1 shows a side view of the tensioning assembly. A tensioning assembly can be understood as an assembly that is used for tensioning at least one chain.25 Chains are typically used for securing various objects, for example when securing a load for transport on a ship or a truck. The tensioning assembly as shown in Figure 1 is designed for tensioning at least one chain.One chain, an example of a chain, is shown in figures 5A, 5B, 5C and 5D. Figures 2 and 3 further show an example design of the tensioning assembly in figure 130. Although figures 5A, 5B, 5C and 5D show specific examples of chains that can be tensioned with the tensioning assembly, its use is not limited to these configurations. The tensioning assembly can also be effectively applied to other types of chains, such as those used on conveyor belts, motorcycles and industrial machines. Moreover, the tensioning assembly can be adapted for use with alternative tensioning devices, such as belts, cable ropes. The chain shown in 5A, BE2024 / 5910 11 5B, 5C and 5D comprises multiple links, where the links are respectively connected to each other as shown in figures 5A, 5B, 5C and 5D. The tensioning assembly comprises a chain tensioner 100 and a lever 200. As shown in figure 1, the chain tensioner 100 and the lever 200 extended into one another. TheThe chain tensioner 100 and the lever 200 are connected to each other. As shown in Figure 15, the chain tensioner 100 and the lever 200 can be connected to each other at a respective end. Thus, the chain tensioner 100 and the lever 200 can each have a first and a second end, and the first end of the chain tensioner 100 can be connected to the first or the second end of the lever 200, or vice versa. Preferably, the chain tensioner 100 and the lever 200 are connected to each other in a detachable manner. To connect the chain tensioner 100 and the lever 200 to each other in a detachable way, various techniques can be applied, each with its own advantages. A first technique is the use of a screw connection, whereby screws or bolts are passed through corresponding holes in the chain tensioner and the lever. inserted. This ensures a firm connection that can be easily released when necessary. Another technique is the use of a quick-release mechanism, such as a clamp or lever, with which parts can be connected quickly and without tools ordetached. This is particularly useful in situations where frequent maintenance or adjustment is required. Additionally, a pin-and-hole system can be used, where alignment pins fit into corresponding holes to hold the parts in place. These pins can be easily removed to release the connection. For applications requiring a quick and simple connection, a click system can be used. In this case, the parts click together and are held firmly in place, but can be released again with a specific force. The chain tensioner 100 is designed for tensioning at least one chain; this is further explained and shown in figures 5B, 5C, and 5D. The chain tensioner 100 comprises a chain tensioner body 110 and a first fastening element 120. A chain tensioner body110 can be understood as the part of the chain tensioner 100 that forms the basic structure. An advantage of this is that the chain tensioner body110 forms a sturdy and stable base for absorbing and distributing the forces that occur during thetensioning of at least one chain occurs. The chain tensioner body110 is preferably elongated. Elongated can be understood as a shape that is longer in one direction than in the other. An elongated chain tensioner body110 can, for example, take the form of a bar. This bar shape makes it possible to distribute the forces required for tensioning the chain evenly along the length of the body, which contributes to the stability and effectiveness of the chain tensioner. Moreover, an elongated design can improve accessibility and ease of use, especially in situations where space is limited or where a longer reach is required to tension the chain correctly. The chain tensioner body110 is provided with a first end111 and a second end112. The chain tensioner body110 extends between the first end111 and the second end112. The first end111 and the second end112 are at a distance of 5 from each other. An end can be understood as the endpoint of an object, in this case the body.The distance between the first end111 and the second end112 is measured along the longitudinal axis of the tensioning assembly. The distance is mainly determined by the length of the chain tensioner body110; the distance can, for example, be 1 meter. The first end111 comprises a first connecting part113 and a second10 connecting part114. A connecting part113,114 can be understood as a component designed to make a connection with another element such as a link of several links of the least stone chain. The first connecting part113 and the second connecting part114 are arranged to be connected with respectively a first link and a second link of several links of the least stone chain as shown15 in figures 5B, 5C and 5D. The first connecting part113 and the second connecting part114 are at a first distance from each other. Preferably, the first distance is measured along a longitudinal axis of the chain tensioner body110. Preferably, the first connecting part113 and theThe second connecting part 114 is formed by the chain tensioner body 110. This means that the first connecting part 113 and the second connecting part 114, instead of being separate components attached to the chain tensioner body, the first and second connecting parts are manufactured or formed directly from the material of the chain tensioner body and form an integral whole. In other words, the first connecting part 113, the second connecting part 114, and the chain tensioner body are formed from a single piece. The first connecting part113 and the second connecting part114 comprise a first recess115 and a second recess116 respectively. The first recess115 and the second recess115 are arranged to receive the first link and the second link respectively, as shown in figures 5B, 5C and 5D. A recess can be understood as a notch or groove designed to accommodate a specific component. An example of this is that the recesses have the shape of a notch or slot that fits the forms30size of the chain links. When the chain is placed in the recesses, the links are held firmly, preventing them from shifting or coming loose during tightening. An advantage of the first recess115 and the second recess116 is that the first recess115 and the second recess116 offer an accurate and safe positioning of the first link and the second link respectively and ensure that the first link35 BE2024 / 5910 13 and the second link are held firmly in place during the tightening of at least one chain. The first recess115 and the second recess116 respectively encompass a first opening117 and a second opening118. The first opening117 and the second opening118 are oriented in opposite directions. In Figure 1, the first opening117 is directed downwards, viewed in a plane perpendicular to the longitudinal axis of the tensioning assembly. A first dimension of the first opening117 and the second opening118 corresponds almost exactly to a second dimension of respectively a first linksecond link of several links of the at least one chain. The first dimension of the first opening117 and the second opening118 refers to the width of the first opening11710 and the second opening118. The width of an opening must be interpreted as the horizontal distance between the two furthest apart points on the inside of the opening, measured perpendicular to the longitudinal axis of the opening. In this description, the first dimension of the first opening117 and the second opening118 refers to the width of the first opening117 and the second opening118 respectively. This means that when speaking of the first 15 dimension of these openings, the width of these openings is specifically meant. For example, if the first opening117 has a width of 5 millimeters and the second opening118 has a width of 10 millimeters, then the first dimension of the first opening is 1175 millimeters and the first dimension of the second opening118 is 10 millimeters. The second dimension of the first link refers to the thickness of the first link 20second link. The near correspondence of the width of the first opening and the second opening with the thickness of the first link of the second link is shown in Figure 5A, 5B and 5C. The first fastening element120 is designed to connect to one-third of the multiple links of the least stone chain as shown in Figure 5D. A 25 fastening element can be understood as a component designed to attach to another element such as a link of multiple links of the least stone chain. The first fastening part120 is connected to the chain tensioner body110 with a first connecting part130. A connecting part can be understood as a component designed to connect a first component with a second component. Preferably, the first fastening part120 is connected to the chain tensioner body110 at a distance from the first end111, preferably at the location of the second end112. Preferably, the first fastening element130 is virtually non-elastically deformable. Preferably, the firstfastening element 130 may be a first fastening chain, as shown in Figure 1, but is not limited to that.35 BE2024 / 5910 14 The lever 200 is designed to detect when a predetermined tension is reached on at least one chain. In other words, the lever 200 is designed to detect when a predetermined tension is reached on at least one chain. This means that the lever contains a mechanism or sensor that responds to the tension in the chains and emits a signal or takes action as soon as the tension reaches a pre-set level.5 For example, in the context of tensioning a chain, the lever 200 can be used to ensure that the chain is tensioned correctly and safely. When the chain reaches a tension during tensioning that corresponds to the optimal tension for safe and efficient operation, the lever detects this tension. At that moment, the lever, for example, also activate a visual or auditory signal to warn the user that the desired voltage has been reached, or automatically stop the tensioning mechanismto prevent the chain from being over-tensioned. This function helps to extend the lifespan of the chain and ensure the safety of the application. The lever can further be configured to indicate when a predetermined tension has been reached on the chain. This means that the lever is not only capable of detecting the tension, but also of providing an indication as soon as the chain reaches the pre-set tension. For example, in the tensioning assembly for tensioning a chain, the lever can be equipped with an indicator, such as a light or an audible signal, which is activated when the chain reaches the optimal tension. This provides the user with direct feedback that the chain is correctly tensioned, thereby reducing the risk of excessive tension and possible damage to the chain or the system. This additional functionality contributes to the user-friendliness and safety of the system. An advantage of this is that the user receives a clear indication when aa predetermined tension is reached, which improves the accuracy and safety of the tensioning. A cross-section of an example design of the lever 200 is provided in 25 Figure 4. Figure 2 shows a further example design of a tensioning assembly for tensioning at least one chain. Figure 2 shows a side view of the tensioning assembly. The tensioning assembly in Figure 2 differs from the tensioning assembly in Figure 130 in that the chain tensioner 100 in Figure 2 includes a second fastening element 140. The second fastening element 140 is designed to connect a fourth link of the multiple links of the minimum chain. The second fastening element 140 is designed to apply an initial tension to the minimum chain. In the first instance, to do this, the second connecting link 114 must be connected to a first link.35 Subsequently, the fastening element 140 is connected to a fourth link. The fourth link is located at a distance from the first link. An initial tension can be applied.applied by moving the tensioning assembly in the direction of the first link or positioning or adjusting the fastening element 140 in such a way that the chain is pulled taut to a predetermined level. This allows the links between the first link and the fourth link to be free of tension. Subsequently, the first connecting part 113 can engage a link 5 located between the fourth link and the first link. When the tensioning assembly can then be moved away from the first link, the chain can be further tensioned to reach the desired final tension. The fourth link is located between the first link and the second link. The second fastening element140 is connected to the chain tensioner body110 between the first10 end111 and the first fastening element120. The second fastening element140 is connected to the chain tensioner body110 with a second connecting part150. Preferably, the second connecting part150 is virtually non-elastically deformable. AtPreferably, the second connecting component is a second fastening chain as shown in Figure 2.15. The lever as shown in Figure 2 and Figure 4 may further include a handle, but is not limited to this. The handle can be used to move the chain tensioner body from a first position to a second position. The handle is preferably located at the end of the second lever body as shown in Figure 4.20. Figure 3 shows a further example design of the tensioning assembly for tensioning at least one chain. Figure 3 shows a side view of the tensioning assembly. The tensioning assembly in Figure 3 differs from the tensioning assembly in Figure 125 in that the tensioning assembly in Figure 3 includes an extension 300. An extension 300 can be understood as a component used to increase the length or reach of an existing object or system. An advantage of the extension 300 is that the extension 300 reduces the load on the user. The extension 300 is installedbetween the chain tensioner body110 and the lever200. Preferably, the extension30030 can be detachedly connected to the lever200. Preferably, the extension300 can be detachedly connected to the chain tensioner body110. When the extension300 is connected to the chain tensioner body110, the extension300 partially overlaps with the chain tensioner body110. The extension comprises an extension body310 and at least one first coupling element320 and one second coupling element330. An extension body can be understood35 as the part of the extension300 that forms the basic structure. An advantage of this is BE2024 / 5910 16 that the extension body310 forms a firm and stable base for absorbing and distributing the forces that occur during the tensioning of at least one chain. Preferably is the extension body 310 elongated. Preferably, the extension body 310 extends between a first extension from end 311 and a second extension from end 312. The distanceThe distance between the first extension end 311 and the second extension end 312 is preferably 600mm to 1200mm, preferably 850mm to 950mm. The first coupling element 320 is designed to enable connection of the extension 300 with the chain tensioner body 110. A coupling element 320 can be understood as a component designed to connect with another element such as the chain tensioner body 110. Preferably, the first coupling element 320 is formed by the extension body 10. Preferably, the first coupling element 320 is connected to the first extension end 311. Preferably, the first extension 320 is formed by the first extension end 311. Preferably, the first coupling element 320 can hook around the chain tensioner body 110. The second coupling element 330 is designed to enable connection of the extension 300 with the 15 chain tensioner body 110. The second coupling element 330 is located at a distance from the first coupling element 320. The distance between the first coupling element 320 and theThe second coupling element330 is measured along the longitudinal axis of the extension body310. Preferably, the second coupling element330 is formed by the extension body310. Preferably, the second coupling element comprises a first projection331 and a second projection20 332. The first projection331 and the second projection332 are arranged so that they can be located on one side of the chain tensioner body110 when the extension300 is connected to the chain tensioner100. A projection can be understood as a part that protrudes outwards from the extension body320. An advantage of this is that the first projection331 and the second projection332 ensure that the extension300 remains in line with the25 chain tensioner body110 during the tensioning of at least one chain. The distance between the first coupling element320 and the second coupling element330 is preferably 200 mm to 250 mm, preferably 215 mm to 230 mm. However, the tensioning assembly is not limited to the sample design forms30 shown in figures 1, 2 and 3.Figures 4A and 4B show an example design of the lever 300. Figure 4 shows a cross-section of the lever 300. Figure 4A shows the example design of the lever in a first state. Figure 4B shows the example design of the lever in a second state. The first state is the state in which the lever 300 is located before a predetermined stress is reached. The second state is the state in which the lever 300 is located when a predetermined stress is reached. The lever 200 comprises a lever body, a lever head, a coupling piece, and at least one elastic element. The lever body comprises a first lever body at end 211 and a second lever body at end 212. The lever body extends between the first lever body at end 211 and a second lever body at end 212. The lever body 210 comprises a cavity at the first lever body at end 211. A cavity is understood as an empty or open space within an object or structure such as the lever body 210. PreferablyThe cavity extends along the longitudinal axis of the lever body210. When the cavity10 extends overlapping with the longitudinal axis of the lever body210, a centered structure is formed within the lever body. This example design ensures that the cavity is evenly distributed along the length of the lever, which can contribute to a balanced weight distribution and structural integrity. Furthermore, this configuration can offer functional benefits, such as facilitating the passage of components15 or optimizing the force distribution within the lever. Preferably, the lever body210 is elongated, as shown in Figure 4. The lever head 220 comprises a first lever head at end 221 and a second lever head at end 222. The lever head 220 extends between the first lever head at end 221 and the second lever head at end 222. The lever head 220 can be provided in 20 different shapes to enable different types of connections and to meet design preferences. As shown in Figure 4, the lever head 220 is preferablyelongated. The lever head 220 is partially housed in the cavity of the lever body 210, which means that a part of the lever head is placed inside this cavity. The lever head 220 can be pivotally connected to the first lever body at the end 211. This means that the lever head 220 is able to rotate or pivot around or relative to the first lever body at the end 211. The lever head 220 can be pivotally connected to the first lever body at the end with, for example, a rotation pin 250 as shown in Figure 4 or an alternative connection. This pivotable connection makes it possible for the lever head to rotate, whereby the movement of the lever is converted into a rotating movement. The first lever head at the end 221 can be rigidly connected with the chain tensioner body110 as shown in figures 1 and 2. This rigid connection ensures that the forces and the moment exerted via the lever200 are directly and efficiently transferred to the chain tensioner100. The advantage of this is that the force exerted via thelever200 is applied, is directly transmitted to the chain tensioner100. This creates a direct relationship between the force applied to the chain tensioner100 and the force experienced by the lever head220 connected to the chain tensioner body110. Preferably, the first lever head at end221 is connected to the second end112 of the chain tensioner body110. Preferably, the first lever head at end221 can be detachedly connected to the second end112. The first lever head at end221 can be rigidly connected to the extension piece300 as shown in figure 3. Preferably, the first lever head at end221 can be detachedly connected to the extension piece300. The second Lever head end 222 is connectable to coupling piece 230. The second lever end 222 comprises a recess 223. A coupling piece 230 is understood as a component that enables the transfer of motion, force, or signals between two systems or components. The coupling piece 230 is 10 installed between the lever head 220 and at least one elastic element 240. Thecoupler 230 is housed in the cavity of the lever body 210. The coupler includes an intermediate piece 231 and a tilting part 232. An intermediate piece 231 is understood as a component that is used to connect two other parts to often enable a specific configuration or function. A tilting part 232 is understood as a part that can 15 tilting to adjust the position or angle of another part is often to facilitate a specific function or movement. The tilt part 232 is located between the second lever head end 222 and the intermediate piece 231. The intermediate piece231 is designed to exert a predetermined pressure by transferring at least one elastic element240 to the tilting part232 and the lever head20 220. The intermediate piece231 transfers the predetermined pressure to the tilting part232 and the lever head220 by moving in the direction of the tilting part232 and the lever head220. The movement involves a movement parallel to the longitudinal axis of the lever 200. Because the lever head220 is connected to the lever body210, the movement ensuresof the intermediate piece 231 before the lever head 220, the tilting part 232 and the intermediate piece 25 231 are pressed against each other. The pressure with which the lever head 220, the tilting part 232 and the intermediate piece 231 are pressed against each other corresponds to the predetermined pressure exerted by the at least one elastic element 240. The intermediate piece comprises a further recess 233. The further recess 223 is located on one side of the intermediate piece 231 that borders the tilting part 232. The recess 223 and the further recess 233 are designed to receive the tilting part 232. The recess 223 and the further recess 233 are designed to enable tilting of the tilting part 232 as shown in figure 4B. The tilting component 232 is designed to tilt when the pressure applied by the intermediate piece 231 is exceeded as shown in Figure 4B. The pressure applied by the intermediate piece 231 corresponds to the predetermined pressure exerted by the at least one BE2024 / 5910 19 elastic element 240. Preferably, the tilting component 232 is rectangular, but thetilting element 232 is not limited to that. The at least one elastic element 240 is designed to exert a predetermined pressure on the coupling piece 230 and the lever head 220. Preferably, the predetermined pressure corresponds to a desired predetermined tension on the chain. This offers the advantage of accurate and consistent tension control, which significantly reduces the risk of excessive tension and the resulting damage or safety problems on the chain. Preferably, the at least one elastic element 240 is a spring as shown in figures 4A and 4B. Preferably, the lever300 further comprises a pressure adjustment mechanism270. A pressure adjustment mechanism is understood as a mechanism that enables the adjustment of a10 pressure setting within a device, such as the adjustment of the pressure exerted by the at least one elastic element. The pressure adjustment mechanism270 is designed to adjust the predetermined pressure exerted by the at least one elastic element240.An advantage of the pressure adjustment mechanism270 is that it offers flexibility and control over the tension exerted on the chain.15 Figure 5 shows the tensioning of the at least one chain with the tensioning assembly according to the example design in Figure 1. Figure 5A shows the at least one chain that is tensioned with the tensioning assembly. The at least one chain comprises several links that are connected to each other respectively. The at least one chain is provided with a hooking element at one or both ends. This hooking element can be attached to a surface on which or to which the object is fastened. Because the at least one chain is attached to one or both ends, tension can be applied to the at least one chain, whereby the at least one chain can be effectively tensioned. The thickness of several links of the chain is preferably between 5 mm and 17 mm, preferably between 9 mm and 13 mm. Figure 5B shows the chain tensioner body in a first position. Figure 5B shows that inthe first position, a first link, and a second link of the chain can be connected respectively to the first connecting part 113 and the second connecting part 114. Figure 5B further shows that when the chain tensioner body 110 is in the first position, the first recess 115 and the second recess 116 are respectively arranged to receive the first link and the second link. Figure 5C shows the chain tensioner body110 in a second position. Moving the chain tensioner body110 from the first position shown in Figure 5B to the second position shown in Figure 5C causes the first link to move the second link in the opposite direction35. Moving the first link to move the second link in the opposite direction BE2024 / 5910 20 ensures that the initial distance between the first link and the second link decreases, which is clear from Figures 5B and 5C. Because the respective end of at least one chain is attached with a hook element as shown in Figure 5A, the shortening ofthe distance between the first link and the second link before the at least one chain is tensioned. Figure 5D shows the tensioning assembly that is attached in the second position with the first fastening element 120. The chain tensioner body 110 can be attached in the second position by attaching the first fastening element 120 to the third link. The third link is located outside the first link and the second link as shown in Figure 5D. The chain tensioner body 110 is movable from the first position shown in Figure 5B to the second position shown in Figure 5C. The chain tensioner body 110 can be moved from the first position to the second position by applying a force to the lever 200. The force applied to the lever 300 creates a moment of the chain tensioner body 110. Because the chain tensioner body 110 is rigidly connected to the 15 first lever head end 221 the moment is transferred to the lever head 220. When the moment of the lever head the pressure applied by the least elastic element240 exceeds the tilting element 232 as shown in Figure 4B. Because the tilting element 232 tilts, the pressure on the lever head 220 briefly drops. This brief drop in pressure can be perceived by the user of the 20 tensioning assembly. Because the tilting element 232 tilts, the second lever head at the end 222 makes contact with a wall of the lever body 210. When contact is made between the second lever end 222 and the wall of the lever body 210, a sound is heard. This sound can be perceived by the user of the tensioning assembly. Because the pressure exerted by the elastic element corresponds to the desired predetermined tension on the chain, the tilting of the tilting element 232 indicates when the predetermined tension on the chain has been reached. Figure 6 shows an example design of a chain tensioner. Figure 6 shows a side view of an example design of the chain tensioner. The chain tensioner is designed for tensioning at least one chain; the at least one chain is shown infigures 5A, 5B, 5C and 5D. The tensioning assembly is, however, not limited to tensioning the chain shown in 5A, 5B, 5C and 5D. The chain shown in 5A, 5B, 5C and 5D comprises several links, where the links are respectively connected to each other as shown in figures 5A, 5B, 5C and 5D.35 BE2024 / 5910 21 The chain tensioner100 comprises a chain tensioner body110 and a first fastening element120. A chain tensioner body110 can be understood as the part of the chain tensioner 100 that forms the basic structure. An advantage of this is that the chain tensioner body110 forms a sturdy and stable base for absorbing and distributing the forces that occur during the tensioning of at least one chain. It can be foreseen that the chain tensioner body110 is elongated. Elongated can be understood as a shape that is longer in one direction than in the other. The chain tensioner body110 is provided with a first end111 and a second end112. The first end111 and the second end112lie at a distance from each other. An end can be understood as the endpoint of an object, in this case the body. The distance between the first end and the second end is measured along the longitudinal axis of the tensioning assembly. The chain tensioner body extends between the first end and the second end. 38. Preferably, chain tensioner body has a length of 500 mm to 650 mm, preferably of 575 mm to 595 mm. The length of the chain tensioner body is defined here as the distance between the first end and the second end. The first end comprises a first connecting part113 and a second connecting part 114. A connecting part can be understood as a component designed to make a connection with another element such as a link of several links of the at least one chain. The first connecting part113 and the second connecting part114 are arranged to connect with respectively a first link and a second link of several linksof the chain as shown in figures 5B, 5C and 5D. The first connecting part 113 and the second connecting part 114 are at a first distance from each other. Preferably, the first distance is measured along a longitudinal axis of the chain tensioner body 110. Preferably, the first connecting part 113 and the second connecting part 11425 are formed by the chain tensioner body 110. The first connecting part 113 and the second connecting part 114 comprise a first recess 115 and a second recess 116 respectively. The first recess 115 and the second recess 115 are designed to receive the first link and the second link respectively, as shown in figures 5B, 5C and 5D. A recess can be understood as a notch or groove designed to accommodate a specific component. An advantage of the first recess 115 and the second recess 116 is that the first recess 115 and the second recess 116 provide an accurate and safe positioning of the first link and respectively.second link offer and ensures that the first links and the second link are held firmly in place during the tightening of the minimum chain.35 BE2024 / 5910 22 The first recess115 and the second recess116 comprise respectively a first opening117 and a second opening118. An opening can be understood as a passage or hole in a structure. The first opening117 and the second opening118 are oriented in opposite directions. A first dimension of the first opening117 and the second opening118 corresponds almost exactly to a second dimension of respectively a first link and a second link of several links of the minimum chain. The first dimension of the first opening117 and the second opening118 refers to the width of the first opening117 and second opening118. The second dimension of the first link refers to the thickness of the first link the second link. The near correspondence of the width of the first opening and the second opening with the thickness of the first link the second 10 link is shown in figures 5A, 5B and 5C.The first fastening element120 is designed to connect to one-third of the multiple links of the least stone chain as shown in Figure 5D. A fastening element can be understood as a component designed to attach to another element such as a link of multiple links of the least stone chain. The first fastening part120 is connected to the chain tensioner body110 by a first connecting part130. A connecting part can be understood as a component designed to connect a first component to a second component. Preferably, the first fastening part120 is connected to the chain tensioner body110 at a distance from the first end111, preferably at the location of the second end112. Preferably, the first fastening element130 is virtually non-elastically deformable. Preferably, the first fastening element 130 may be a first fastening chain, as shown in Figure 1, but is not limited to that. A further version of the chain tensioner includes a 2ndfastening element 140. The second fastening element 140 is designed to connect a fourth link of several links of the at least one chain. The fourth link is located between the first link and the second link. The second fastening element 140 is connected to the chain tensioner body 110 between the first end 111 and the first fastening element 120. The second fastening element 140 is connected to the chain tensioner body 110 with a second connecting part 150. Preferably, the second connecting part 150 is virtually non-elastically deformable. Preferably, the second connecting part 150 is a second fastening chain as shown in Figure 2. The chain tensioner 100 as shown in Figure 6 can be used in combination with a lever, an example version of which is shown in Figure 4, but is not limited thereto.35 BE2024 / 5910 23 The chain tensioner 100 as shown in Figure 6 can be used in combination with extension 300, but is not limited thereto.The chain tensioner is furthermore not limited to the example design shown in Figure 6. 5 Based on the description above, the skilled person will understand that the invention can be implemented in different ways and on the basis of different principles. In doing so, the invention is not limited to the designs described above. The designs described above, as well as