Sleeve-type fastening element

Abstract

The invention relates to a cuff-like fastening element (1) for circumferentially clamping, preferably elongated, objects, in particular cables, pipes and / or plant parts, comprising: - a band-shaped base element (2) formed in a basic state along an extension axis (E) for at least partially circumferentially bearing against a surface of an object to be clamped in a closed or clamped state; - locking means (4) with a locking unit (5) arranged at a first end (6) of the base element (2); and locking means (7) formed on or at the base element and enabling locking with the locking unit (5), wherein the fastening element is made of polyvinylidene fluoride (PVDF).According to the invention, the locking unit (5) is designed such that the locking mechanism with the locking means (7) comprises a spring section (10) that is elastically deformable along an extension length of the extension axis (E) and is designed to be reversible, in particular releasable.

Description

[0001] The present invention relates to a cuff-like fastening element for circumferentially clamping, preferably elongated, objects, in particular rods, profiles, hose reels, cables, pipes and / or plant parts according to claim 1.

[0002] Fastening elements for circumferentially clamping objects, preferably elongated objects, in particular cables, rods, profiles, hose reels, pipes and / or plant parts, are generally known in the prior art. These fasteners are sometimes also referred to as cable ties, although their known applications extend well beyond simply connecting or bundling cables. Today, these known fasteners are used in a wide variety of environments and for a wide range of applications.

[0003] The known fasteners have the disadvantage that, in a closed or clamped state, they can sometimes generate excessive clamping forces and thus damage the objects they clamp, particularly elongated objects. Furthermore, with these known fasteners, the closed or clamped state can only be released by destroying the fastener, which increases their consumption. Additionally, the environmental resistance of fasteners of this type is very limited, so rapid wear, for example due to embrittlement from UV radiation, also leads to high consumption.

[0004] From US patent 2018 / 0282036 A1, a fastening element is known in which a locking mechanism with a locking unit can be formed by means of differently shaped locking means.

[0005] From DE 28 47 505 a fastening element according to the preamble of independent claim 1 is known.

[0006] From US patent 2017 / 0050786 A1, a fastening element is known which has a fastening area with two recesses at a first end, whereby the fastening element can be clamped in such a way that two loops are formed.

[0007] DE 10 2019 122 136 A1 describes a reusable cable tie in which the locking lug is movably mounted as a separate component to allow manual release from a locking position. In light of this prior art, the present invention aims to provide a cuff-like fastening element that overcomes the disadvantages known from the prior art. In particular, the present invention aims to provide a fastening element that is more durable and / or minimizes wear and tear due to incorrect assembly and / or fatigue.

[0008] The problem for the fastening element is solved by a cuff-like fastening element according to claim 1.

[0009] Advantageous embodiments of the invention are described in the following description, the figure description, the figures and the dependent claims.

[0010] In principle, all features subsequently disclosed by means of the device shall also be deemed to be disclosed and claimable by means of the corresponding procedure, and vice versa.

[0011] The present invention relates to a cuff-like fastening element for circumferentially clamping objects, preferably elongated objects, in particular rods, profiles, hose reels, cables, pipes and / or plant parts, comprising a band-shaped base element formed in a basic state along an axis of extension for at least partially circumferential contact with a surface of an object to be clamped in a closed or clamped state, further comprising locking means with a locking unit which is arranged at a first end of the base element and locking means which, in the closed or clamped state, cooperate with the locking unit and which are formed on or at the base element and enable a locking action with the locking unit, wherein the fastening element is made of polyvinylidene fluoride (PVDF).Furthermore, the locking unit is designed such that the locking mechanism with the locking means is reversible, in particular releasable, wherein the basic element between the locking unit and the locking means comprises a spring section that is elastically deformable along an extension length of the extension axis and the spring section is formed by an arc-shaped elevation of the basic element.

[0012] In this context, according to the invention, it is provided that the basic element has a reduced thickness in the area of ​​the arc-shaped elevation.

[0013] PVDF is particularly preferably used as a recycled material or obtained through recycling from other products or objects. This allows the fastening elements according to the invention to be manufactured in an extremely resource-efficient manner, which further realizes the concept of reusable materials.

[0014] The fundamental concept of the invention is based on the understanding that, for the sustainable and long-lasting use of the fastening element, not only must its resistance to environmental influences be increased, thus counteracting wear and fatigue of the material—which can be achieved through the use of polyynylidene fluoride (PVDF)—but also its fundamental reusability must be ensured, precisely to enable the use and reuse of the more durable and wear-resistant fastening elements for as long as possible. This also advantageously eliminates problems arising from incorrect installation, particularly installations that are too tight, constricting, or cutting into the material, since the fastening element can be easily loosened or opened and reinstalled or re-engaged.However, even when used in a dynamic environment, for example in connection with plants or living beings, the fastening element can simply be loosened / opened and reused after a certain period of use, which is still possible and useful even under aggressive environmental influences such as UV light, oils, extreme temperatures or the like, since the fastening element is overall much more resistant and durable.

[0015] Thus, the generic fastening element, preferably the generic cable tie, is transformed by the subject matter of the present invention from an extremely disposable item, where replacement is regularly necessary due to wear or fatigue of the material, into a genuine reusable item that is inherently extremely durable and, through the releasable locking mechanism between the locking unit and locking means, allows for multiple, even long-term, reuse of the fastening element.

[0016] The basic element preferably has the form of a band, comprises a top and an opposing bottom, and extends along its axis of extension in its basic state. In the closed or tensioned state, the bottom rests at least partially on an enclosed object, which causes the top to be oriented radially outwards.

[0017] In the present invention, the base element is made of a PVDF material that is dimensionally stable with respect to force applied along its longitudinal extent. In other words, the base element is flexible enough to be applied to objects to be clamped, either partially or completely, with minimal to no elongation of the base element under longitudinal force. The clamping means, comprising the locking unit and the locking devices, allow the base element to be fixed circumferentially in a clamped or closed position.When the locking unit is actuated, a force is applied to the base element. With a corresponding counterforce from the enclosed objects, at the moment of actuation and / or at a later time, for example due to an increase in the diameter of the enclosed objects caused by plant growth, the spring section according to the invention is deformed and / or stretched along the extension path in order to change the longitudinal extent of the base element. The spring section thus enables stepless adjustment of the longitudinal extent of the base element in the closed or tensioned state. In addition to the coarse adjustment of the longitudinal extent by selecting the position of the locking means, the longitudinal extent of the base element in the closed or tensioned state can also be influenced by the extension path.In other words, the spring section allows for fine adjustment and / or flexibility of the longitudinal extension of the base and / or fastening element. Furthermore, the spring section in the base element generates a restoring force that results in a uniform, all-around force-fit connection between the fastening element and the objects to be clamped, provided that the objects are completely enclosed or clamped in a force-fit manner.

[0018] The fastening element according to the invention thus prevents excessive clamping of the objects, for example, even cutting or damaging clamping, and therefore avoids the need for disassembly and reassembly during installation to relieve excessive clamping force. Furthermore, the fastening element allows for subsequent adjustments due to the deformation of the spring section. This also makes the individual fastening element more durable overall in dynamic applications. Of course, this does not preclude the possibility, according to the invention, of loosening and reattaching the fastening element during use, preferably with a larger diameter, or locking it in place. However, the need for non-destructive disassembly and reassembly is particularly advantageously reduced, which enables particularly convenient use of the fastening element in dynamically changing applications.

[0019] The spring section is advantageously formed only partially within the base element, with the base element exhibiting only minimal elastic properties outside the spring section. The fastening element according to the invention advantageously allows for tool-free assembly and disassembly.

[0020] According to the invention, the spring section is formed by an arc-shaped projection of the base element, which, in particular, forms the extension length by deformation along the axis of extension. In other words, the base element comprises a curved and / or arched section which, due to the bending strength of the base element, forms a type of leaf spring. When force is applied, i.e., when the fastening element is tightened, the arc-shaped projection flattens out when a corresponding counterforce is exerted by the enclosed objects. This increases the longitudinal extension of the base element and / or the fastening element by the extension length and simultaneously generates a restoring force in the fastening element.Advantageously, the spring section can thus be implemented in the base element in a simple and reliable manner, in order to adjust the longitudinal extent between two adjacent fixed clamping positions by adjusting the arc-shaped protrusion into a flatter state. In In a longitudinal section view, the arc-shaped elevation can also be described as a partial circle segment, whereby a prestress can be generated in the basic element by the geometry and / or shape and / or design of the elevation.

[0021] According to the invention, the base element has a reduced thickness in the area of ​​the arcuate protrusion. Furthermore, it is preferred if the base element includes a transition area immediately adjacent to the arcuate protrusion, the transition area having a thickness that lies between the material thickness of the arcuate protrusion and the thickness of the base element. This advantageously results in particularly good preload in the base element, leading to improved frictional engagement between the fastening element and the pipe assembly.

[0022] Further development may also provide that the fastening element, in particular the base element together with the spring section and the clamping means, is designed monolithically and / or as a plastic injection molded part.

[0023] The monolithic design results in particularly simple manufacturing, as the basic element, and therefore also the fastening element, can be produced using a suitable injection mold. Advantageously, no further assembly steps are required to produce the fastening element. Besides low manufacturing costs, this also leads to a low error rate in production, since no assembly of the fastening element is necessary.

[0024] A preferred embodiment provides that the locking unit comprises a recess for inserting a free end of the base element opposite the first end and a locking lug, such that when the free end is inserted into the recess, the locking lug comes to rest against a top surface of the base element on or in which the locking means are formed.

[0025] The free end is thus the second end of the ribbon-shaped basic element, which is arranged opposite the locking unit.

[0026] In this context, a recess is understood to be a material gap, in particular a hole and / or an opening, that allows the free end of the base element to be received, thus transforming the strip-shaped base element into an annular base element. The recess aligns and / or positions the locking means that encompass the base element between the first end and the free end. The locking lug is a component of the locking unit that can be engaged with the locking means. The locking lug is arranged and / or aligned relative to the recess in such a way that the locking means can be mechanically contacted after the free end has been inserted through the locking lug.

[0027] The recess is preferably designed such that tangential guidance of the base element is achieved after its insertion into the locking unit. This advantageously allows for a space-saving arrangement of the fastened / locked fastening element.

[0028] Due to the simplicity of the recess interacting with the locking lug, even untrained personnel can achieve the clamped position, as incorrect operation is virtually impossible. Additionally, when a force is applied, provided there is a counterforce from the objects, the spring section is also subjected to force. This design thus advantageously simplifies both tool-free assembly and disassembly.

[0029] In this context, it can also be further developed that the locking lug includes a surface for releasing the locking or clamping positions by applying force, particularly manually. This surface allows the clamping device to be designed to be releasable, for example, to release the clamping state of the fastener during maintenance or repair work and thus prevent damage to the fastener by service personnel. This can also considerably extend the service life of the fastener, especially if, for example, a suitable material selection prevents wear, particularly embrittlement, and thus makes long-term reuse worthwhile.Preferably, the attack surface is designed in such a way that the locking nose can be manually released from the clamping position, for example by the fingertip of the hand of service personnel, in order to then pull the free end out of the recess.

[0030] Furthermore, a preferred embodiment of the fastening element provides that the locking means comprises at least one substantially sawtooth-shaped detent step, preferably a plurality of substantially sawtooth-shaped detent steps, for forming the closed or clamped state and / or for locking with the locking unit.

[0031] The detent steps can be interrupted or continuous. In an interrupted configuration, the detent areas can be adapted to advantageous or necessary diameters of the fastening element in the clamping or closed state. In total, it is advantageous to provide that the detent means, preferably the detent steps, are distributed or formed over at least 30%, preferably at least 50%, and particularly preferably at least 80% of the length of the base element in the direction of extension.

[0032] Further developing the zigzag pattern of the resting steps, they can also include a roof section and a base section, both of which are horizontally oriented in the longitudinal section view above, and thus parallel to the top surface of the base element. The roof section and the base section can alternate between a vertically or vertically rising section and a descending section. Along the axis of extension, the roof section connects the force application surface, which is essentially perpendicular to the top surface, with the descending section, which is also referred to here as the incline section. Furthermore, the base section connects the incline section with the force application surface along the axis of extension.

[0033] Advantageously, the multitude of these sawtooth-shaped sections allows for the creation of numerous detent positions, each forming a preload position in which, in particular, the locking lug can be fixed. In this context, the detent positions are formed in the top surface of the base element and are preferably formed by the base element itself. Therefore, manufacturing, especially by injection molding, is technically straightforward, particularly in conjunction with the aforementioned monolithic design of the base element.

[0034] In In a preferred embodiment, the base element is designed such that it has at least one slot-shaped material recess arranged centrally with respect to its width. In its basic state, the material recess is formed section by section along the axis of extension in the base element, which may also have several such material recesses. The material recess forms two parallel longitudinal ribs at the edges of the base element. Advantageously, these two longitudinal ribs at the edges increase the flexibility of the fastening element and thus allow for better and more flexible adaptation to the objects being clamped. This advantageously enables additional stabilization of the fastening element in the closed or clamped state without the need for special materials or surfaces with high static friction.

[0035] In a further preferred embodiment, the base element comprises an eyelet, preferably at its free end, for the engagement of a tool. Advantageously, the eyelet allows the force for clamping the fastener to be applied to the base element by the tool. This further simplifies the assembly of the fastener, as the spring section along its extension path can also be subjected to force indirectly via the tool.

[0036] Within the scope of the present invention, an eyelet is understood to be a material recess and / or a provided coupling section, in particular a coupling element encompassed by the base element, which is designed to interact with a tool. It is provided that the force can be applied to the tool either manually by an operator or mechanically by a handling device.

[0037] In a further developed embodiment, the base element includes a grip section in some areas. The grip section is preferably located in the area of ​​the free end, particularly in an end section associated with the free end, in order to apply a force to the base element to achieve a suitable locking or clamping position and / or to deform the spring section along its extension path. This design advantageously complements the tool-free assembly of the fastening element, as the static friction when manually gripping the base element can be improved. Furthermore, such a design can also be easily combined with the preferred monolithic construction of the base element.

[0038] In this context, it is further developed within the scope of the present invention that the basic element comprises a top surface which can be aligned outwards in the closed or clamped state and a bottom surface opposite the top surface, wherein the handle section comprises a plurality of handle grooves formed on the top surface and the bottom surface in a common handle section along the extension axis.

[0039] The handle section is preferably designed with grip grooves on the top and bottom of the base element in order to improve the application of force to the base element by hand through increased friction.

[0040] Further advantages, features and details of the invention will become apparent from the following descriptions of preferred embodiments and from the drawings.

[0041] These show in Figs. 1a to 1c: a top view, a side view, and a bottom view of a fastening element according to the invention in its basic state according to a first preferred embodiment; Figs. 2a and 2b: a side sectional view and a top view of a locking unit according to the first preferred embodiment, each on an enlarged scale; Figs. 3a and 3b: a side sectional view and an enlarged partial section of the side sectional view of the locking means according to the first preferred embodiment; Fig. 4: a side sectional view of the already known basic element in the region of the free end with a grip section according to the first preferred embodiment; Fig. 5: a side view of a locking lug of a locking unit in engagement with locking means; Fig. 6: a perspective view of a fastening element according to the embodiment of the Fig. 1a - 1c .

[0042] Identical elements or elements with the same function are provided with the same reference numbers in the figures.

[0043] The Fig. 1a Figure 1 shows a top view of a cuff-like fastening element 1 in a basic state 102 according to a first preferred embodiment. The fastening element 1 comprises a base element 2, which is ribbon-shaped and, in the basic state shown, extends from a first end 6 along the axis of extension E to an opposite free end 13. The fastening element is advantageously made of PVDF plastic, preferably as a plastic injection molded part.

[0044] At its first end 6, the base element 2 comprises a locking unit 5, which, together with locking means 7, forms clamping means 4. The locking means 7 are formed in the base element 2 along the extension axis E and extend continuously over a portion of the length of the base element 2 along the extension axis E. Alternatively, the locking means can also be formed intermittently or in sections.

[0045] To increase the flexibility of the fastening element 1, the base element 2 comprises a spring section 10, which is elastically deformable along an extension path that, in the basic state 102, runs in the direction of the extension axis E. The spring section 10, acting as an elastic buffer and / or extension section, is located directly adjacent to the first end 6 and thus to the locking unit 5 in the base element 2. The spring section 10 causes an adjustment of the longitudinal extension of the base element 2 in a closed or clamped state, in order to achieve fine-tuning of the longitudinal extension of the fastening element 1, to prevent excessive crushing force on enclosed objects, and / or to allow the fastening element to expand.

[0046] Furthermore, the top view shows that the base element 2 comprises several slot-shaped material recesses 17, which are aligned along the axis of extension E and result in the formation of two longitudinal ribs 26, 27 at the edges, which run parallel to each other in certain areas. Advantageously, the longitudinal ribs 26, 27 at the edges improve the fastening of the fastening element 1 to objects to be encircled, since the wedging action of the longitudinal ribs 26, 27 in certain areas results in improved adhesion. In addition, the fastening element becomes more flexible and can therefore be better adapted to different surfaces and materials.

[0047] At its free end 13, the base element 2 includes an eyelet 19 designed to receive a tool. Through the eyelet 19, a force can thus be indirectly applied to the fastening element 1 via the tool to achieve the closed or clamped state 101. Additionally, particularly to simplify tool-free assembly, the base element 2 includes a grip section 20, which is formed by the partial formation of grip grooves 23. These grip grooves improve adhesion when gripping manually and are formed on the upper surface 21 and the lower surface 22 of the base element 2.

[0048] The one in Fig. 1b The side view of the base element 2 shown depicts the spring section 10, which, according to the invention, is formed by an arcuate projection 11. When force is applied, the arcuate projection 11 flattens, thereby influencing the longitudinal extension of the base element 2 by the extension distance and generating a restoring force within the base element 2. This restoring force, in the clamped state 101, enables the fastening element 1 to be held securely without cutting into the enclosed objects. It also allows the fastening element to expand and contract with the clamped or closed state.

[0049] Furthermore, the Fig. 1c the underside 22 of the base element 2. It becomes clear that the underside 22 only includes in the grip section 20 the multitude of grip grooves 23 which are formed in the area of ​​the free end 13 in the base element 2.

[0050] The Fig. 2a Figure 1 shows a lateral sectional view of the base element 2 in the area of ​​the first end 6. As already mentioned, the base element 2 in this area comprises the locking unit 5 and the spring section 10, which are arranged directly adjacent to each other in the base element 2 and are shown here in a graphically enlarged version.

[0051] The locking unit 5 includes a recess 12 designed to receive the free end 13 of the base element 2. When the free end 13 is inserted into the recess 12, the locking unit 5 comes into operative contact with one of the four locking elements 7, which prevents the free end 13 from being pulled out of the recess 12.

[0052] This establishes the closed or clamped state of the fastening element 1. Only further insertion of the free end 13 into the recess 12 is possible.

[0053] Furthermore, the locking unit 5 comprises a locking lug 14 that projects partially into the recess 12. This lug interacts with the locking means 7 and, by engaging the locking means, causes a latching action between the locking means and the locking unit 5. To enable both assembly and, preferably, tool-free disassembly of the fastening element 1, the locking lug 14 includes a contact surface 31 that allows the locking lug 14 to be released from the clamping or locking position. For this purpose, a force must be applied to the contact surface 31 to elastically deform the locking lug 14, thereby disengaging the locking means 7.In this state, i.e. during the deformation or lifting of the locking nose 14, the fastening element can be widened or loosened, the latter being effected by completely removing the free end 13 from the locking unit 5.

[0054] Furthermore, the spring section 10 is shown in figure form, which is formed by a partially formed arc-shaped protrusion 11 in the base element 2. The arc-shaped protrusion 11 becomes flatter when a force is applied along the longitudinal extent of the base element 2, which is why the overall length of the fastening element 1 in the fixed state can also be influenced by the elongation distance.

[0055] Furthermore, the longitudinal section view shows that the basic element 2 has a reduced thickness in the area of ​​the arc-shaped elevation 11.

[0056] The Fig. 2b shows the one from Fig. 2a The known area is shown in a top view. Firstly, it is evident that the locking lug 14 is located centrally within the recess 12 with respect to the width of the base element 2 and, moreover, is only formed in a partial area of ​​the recess 12 with respect to its width. Furthermore, the top view shows that the arc-shaped projection 11 is formed across the entire width of the base element 2.

[0057] In the Fig. 3a A part or section of the locking means 7 is shown in a side view. The locking means 7 are formed by a plurality of essentially sawtooth-shaped projections in the upper surface 21 of the base element 2, each projection forming one of several clamping positions 8a-b. Fig. 3a also illustrates that the locking devices 7 comprise a variety of essentially sawtooth-shaped detent stages 16.

[0058] The Fig. 3b shows an excerpt of the Fig. 3a at an enlarged scale. It thus becomes apparent that the sawtooth-shaped protrusions comprise a flat roof section 28, which is formed parallel to the upper surface 21 of the base element 2. The roof section 28 connects the force application surfaces 29, which are oriented essentially perpendicular to the upper surface 21, with a slope section 30, wherein, in turn, a bottom section 32, oriented essentially parallel to the upper surface 21, is provided between the slope section 30 and the force application surface 29. The sequence of slope section 30, bottom section 32, force application surface 29, and roof section 28 is repeated cyclically along the continuous locking means 7.

[0059] The Fig. 4 The figure shows the base element 2 in the area of ​​the free end 13 in an enlarged longitudinal section view. The illustration shows that the handle section 20 is formed on the upper surface 21 and the lower surface 22 of the base element 2 by a plurality of grip grooves 23 on both sides. Furthermore, the figure shows the eyelet 19 formed at the end of the base element 2, by means of which a tool can be inserted into the base element 2 to apply a tensile force.

[0060] The Fig. 5 Figure 1 shows an enlarged side view in which the locking nose 14 is engaged with the locking means 7. The locking nose 14 engages in a floor section 32. In In the depicted state, the locking means 7 can slide along the extension axis E on the locking nose 14, while a latching action opposite the extension axis E results in a blocking of the relative movement. By actuating the contact surface 31, the locking nose 14 can be lifted against a preload and the engagement released. Then, any unrestricted movement of the locking means 7 relative to the locking nose 14 can take place.

[0061] Fig. 6 shows a perspective view of the fastening element according to Fig. 1a - 1c . Bezugszeichenliste

[0062] 1 Fastening element 2 Band-shaped base element 3 Centering means 4 Clamping means 5 Locking unit 6 First end of the base element 7 Locking means 8a, 8b Clamping positions 10 Spring section 11 Arc-shaped protrusion 12 Recess 13 Free end 14 Locking lug 16 Multiple sawtooth detent steps 17 Slotted material recess 19 Eyelet 20 Grip section 21 Top 22 Bottom 23 Multiple grip grooves 26 Edge longitudinal ribs 27 Edge longitudinal ribs 28 Top section 29 Force application surface 30 Slope section 31 Contact surface 32 Bottom section E Extension axis

Claims

1. A cuff-like fastening element (1) for being closed around the circumference of preferably oblong objects, in particular cables, tubes, and / or parts of plants, the fastening element (1) comprising: - a band-shaped base element (2) extending along an axis of extension (E) when in a basic state and at least partially being in contact circumferentially with a surface of an object to be enclosed when in a closed or tightened state - closure means (4) comprising a locking unit (5) disposed at a first end (6) of the base element (2) and locking means (7) formed on the base element (2) and being able to interlock with the locking unit (5), the fastening element being made of polyvinylidene fluoride (PVDF), the locking unit (5) being configured in such a manner that the interlock with the locking means (7) is reversible, in particular unlockable, the base element (2) comprising an elastic portion (10) between the locking unit (5) and the locking means (7), the elastic portion (10) being elastically deformable along a stretching section of the axis of extension (E) and the elastic portion (10) being formed by an arc-shaped raised portion (11) of the base element (2), characterized in that the base element (2) has a reduced thickness in the area of the arc-shaped raised portion (11).

2. The fastening element according to claim 1, characterized in that the fastening element, in particular the base element (2) and the elastic portion (10) and / or the closure means (4) are monolithic and / or are made of plastic, in particular plastic injection-molded parts.

3. The fastening element according to any one of the preceding claims, characterized in that the locking unit (5) comprises a recess (12), which serves for inserting the free end (13) of the base element (2) opposite the first end (6), and a pawl (14), the pawl (14) being configured in such a manner that when the free end (13) is being inserted into the recess (12), the pawl (14) comes into contact with an upper side (21) of the base element (2), on or in which the locking means (7) are formed.

4. The fastening element according to claim 3, characterized in that the pawl (14) comprises a gripping surface (31) for releasing an engagement between the pawl (14) and the locking means (7) by applying a force, in particular manually.

5. The fastening element according to any one of the preceding claims, characterized in that the locking means (7) comprise at least one essentially sawtooth-shaped ratchet step (16), preferably a plurality of essentially sawtooth-shaped ratchet steps (16).

6. The fastening element according to any one of the preceding claims, characterized in that the base element (2) comprises at least one cutout (17), in particular a slot-shaped cutout, which is disposed centrally in relation to the width of the base element (2) and which is formed in sections along the axis of extension (E).

7. The fastening element according to any one of the preceding claims, characterized in that the base element (2) comprises an eye (19), which preferably serves to be engaged by a tool.

8. The fastening element according to any one of the preceding claims, characterized in that the base element (2) comprises a grip portion (20) in sections.

9. The fastening element according to any one of the claims 1 to 8, characterized in that the base element (2) comprises an upper side (21) directed radially outward in the closed or tightened state and an underside (22) opposite the upper side (21), the grip portion (20) comprising a plurality of grip grooves (23) formed on the upper side (21) and the underside (22) in a shared grip portion along the axis of extension (E).

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