Christmas tree fastening element removal arrangements and methods therefor

Abstract

Christmas tree fastening element arrangement (40) comprising: a cap (44) with a first locking feature (82) comprising at least one arm; a base (48) with a second locking feature (86) comprising an annular rim defining the perimeter of a recessed area (94) and with a drive feature (96) arranged in the recessed area; a band (60) connecting the cap to the base; a shaft (50) extending from the base, wherein several wings (66, 68) extend radially outward from the shaft, wherein the drive feature is configured to interact with a working end of a drive tool, and wherein the first locking feature is configured to be arranged around the annular rim in the locked configuration.

Description

CROSS-REFERENCE TO RELATED REGISTRATIONS

[0001] The present application is based on and claims priority of the preliminary US patent application No. 62 / 790,711 filed on January 10, 2019, the disclosure of which is incorporated herein by reference. AREA OF THE FORMS OF DISCLOSURE

[0002] The present disclosure relates to a Christmas tree fastening element comprising a tether that couples a cap of the fastening element to a base thereof. BACKGROUND

[0003] Fasteners can be used to join components together. Christmas tree clips, also known as Christmas tree fasteners or simply Christmas trees, are a type of fastener often used to secure trim or other softer materials to a surface of a rigid object. Christmas tree fasteners can be single- or double-ended and typically include a rounded head from which a shaft extends. Such fasteners may also include multiple ribs or wings extending outward from the shaft in an annular configuration. The fastener is configured to be driven through an opening in the rigid object during operation, with the ribs or wings designed to engage a circumferential edge of the opening to secure the Christmas tree fastener within the rigid object.The configuration of the ribs or wings allows the fastener to be secured to a wide range of materials with varying densities or thicknesses. Fir tree fasteners can be releasable or non-releasable. Furthermore, fir tree fasteners may incorporate a drive feature (for example, a receptacle, slot, or the like) configured to accept the working end of a drive tool, thus providing a user with the means to install the fastener in an opening using the drive tool.

[0004] Christmas tree fasteners are typically manufactured as individual, self-contained parts. Consequently, additional, related fasteners or mounting hardware are usually supplied separately. In one specific application, Christmas tree fasteners are used in automotive applications, for example, with brackets or conductor channel guides. In these situations, the Christmas tree fasteners are often supplied in combination with the additional mounting hardware, but they are not provided with any type of retention mechanism to secure the Christmas tree fastener during shipping.

[0005] In many cases, components of a Christmas tree fastener assembly can be lost or misplaced because they are provided in a loose configuration relative to one another. Given the above, there is a need for an improved Christmas tree fastener assembly where different components are attached or tied together. Such an improved assembly can increase installation efficiency by reducing the time a user might otherwise spend searching for lost or misplaced components. SUMMARY

[0006] Embodiments of the present disclosure generally relate to a Christmas tree fastening element arrangement comprising a cap, a base, a band connecting the cap to the base, and a shaft extending from the base. Several first wings and several second wings extend outwards from the shaft, the several first wings being longitudinally offset from the several second wings.

[0007] The Christmas tree fastener assembly is designed to secure one or more soft materials to the exterior of the rigid object during operation. The shaft of the Christmas tree fastener is designed to be driven through an opening in the rigid object, such that the first and second wings abut an interior surface of the rigid object, preventing the fastener assembly from being ejected from the opening. The base of the fastener abuts an exterior surface of the rigid object, and a rim extends upward from the base. The band that connects the base to the cap extends outward from the base. The cap is configured to be secured to the rim by locking features.

[0008] When attaching a soft material to a rigid object, an opening in the soft material is guided over the edge, the tape is wrapped around a circumferential edge of the soft material, and the cap is secured to the edge using the locking features. This secures the soft material between the cap and the base, thus attaching it to the rigid object.

[0009] In some embodiments, the Christmas tree mounting element assembly is attached to the soft material before being attached to the rigid object. In other embodiments, the Christmas tree mounting element assembly is fixed to the rigid object before being subsequently attached to the soft material.

[0010] In some embodiments, the Christmas tree fastener assembly may include a drive feature on its base, the drive feature being configured to receive the working end of a drive tool (for example, a screwdriver, socket wrench, or other) so that a user can use a drive tool to move the fastener assembly forward through the opening in the rigid object. The drive feature may comprise a slot, opening, receptacle, notch, polygonal projection, or any other structure designed to interact with the working end of a drive tool.

[0011] In a particular embodiment, a Christmas tree fastening element assembly comprises a cap, a base, a band connecting the cap to the base, and a shaft extending from the base. Several wings extend radially outward from the shaft. It is also possible for the cap, band, base, and shaft to be integral. Furthermore, the multiple wings can include multiple first wings and multiple second wings, such that the multiple first wings are longitudinally offset from the multiple second wings. The cap can also be fixed to the base by means of one or more locking features extending from the cap and / or the base. The one or more locking features can include a first locking feature comprising at least one arm suspended from a first surface of the cap.The one or more locking features may further include a second locking feature comprising an annular rim extending upward from a second face of the base, the annular rim being configured to engage with the at least one arm. The at least one arm may include multiple first arms separated by multiple spaces. Furthermore, the annular rim may include one or more slots or spaces configured to allow one of the multiple first arms to be accessible to a tool to disengage the cap from the base when the fir-tree fastener assembly is in a locked configuration.

[0012] In another embodiment, a one-piece Christmas tree fastener assembly comprises a cap, a base, a band connecting the cap to the base, a shaft extending from the base, and several wings extending radially outward from the shaft. The one-piece Christmas tree fastener is movable between an unlocked configuration, such that the cap is positioned at a first distance from the base, and a locked configuration, such that the cap is positioned at a second distance from the base. The first distance is greater than the second distance.

[0013] Furthermore, the multiple wings may comprise multiple first wings and multiple second wings, with the multiple first wings being longitudinally offset from the multiple second wings. Additionally, the cap may be detachably fixed to the base by at least one locking feature when the one-piece Christmas tree fastener is in the locked configuration. The at least one locking feature may include at least one first arm extending from the cap and an annular rim extending from the base, the at least one first arm being configured to engage with the annular rim when the one-piece Christmas tree fastener is in the locked configuration.Furthermore, the at least one first arm can comprise multiple first arms hanging from a bottom of the cap, the multiple first arms being arranged in a radial configuration and separated by multiple spaces. The cap can further comprise a central hole extending axially through it, the multiple first arms being arranged radially around the central hole, the annular rim of the base being configured to extend axially through the central hole when the one-piece fir-tree fastener is moved into the locked configuration. It is also conceivable that the annular rim of the base can define the perimeter of a recessed area, and that a drive feature can be located in the recessed area, the drive feature being configured to interact with a working end of a drive tool.

[0014] In yet another embodiment, a fastening element arrangement is provided for attaching at least one material to an outer surface of a first object, wherein the at least one material contains an opening and the outer surface of the first object contains a bore. The fastening element comprises a cap with a first locking feature, a base with a second locking feature, a band connecting the cap to the base, a shaft extending from the base, and several wings extending radially outward from the shaft. The fastening element arrangement is movable between an unlocked configuration, such that the first locking feature is not engaged with the second locking feature, and a locked configuration, such that the first locking feature is engaged with the second locking feature.

[0015] It is conceivable that the base, band, and shaft could be integrally formed. Furthermore, the second locking feature could include an annular rim extending axially upward from a top surface of the base. When the fastener assembly is in the unlocked configuration, the opening of the at least one material could also be configured to pass over the annular rim of the base, so that subsequent movement of the fastener assembly from the unlocked to the locked configuration secures the at least one material between the cap and the base.In addition, the annular rim can define a perimeter of a recessed area, wherein the recessed area contains a drive feature therein, the drive feature being configured to engage with a drive tool so that the drive tool can be used to install the fastener assembly in the bore of the first object. List of characters Fig. Figure 1 is a perspective view of a state-of-the-art Christmas tree fastening element; Fig. Figure 2 is a perspective top view of a Christmas tree fastening element arrangement with a retaining strap, which is securely fastened in an opening of a piece of material, according to a first embodiment of the present disclosure; Fig. Figure 3 is a perspective bottom view of the fastening element arrangement of Fig. 2; Fig. 4 is a section view of the fastening element arrangement of Fig. 2 from the side; Fig. 5 is a cross-section of the fastening element arrangement of Fig. 2 from the front; Fig. Figure 6 is a side cross-sectional view of the fastening element arrangement along line 6-6 of Fig. 5; Fig. Figure 7 is a cross-sectional view of the fastening element arrangement from the front along line 7-7. Fig. 4. Fig. Figure 8 is a perspective top view of a Christmas tree fastening element arrangement with a retaining strap, which is securely fastened in an opening of a piece of material, according to a second embodiment of the present disclosure; Fig. 9 is a cross-section of the fastening element arrangement of Fig. 8 from the top; Fig. 10 is a cross-section of the fastening element arrangement of Fig. 8 from the side; Fig. 11 is a cross-section of the fastening element arrangement of Fig. 8 from the front; and Fig. Figure 12 is a side cross-sectional view of the fastening element arrangement along line 12-12 of Fig. 11. DETAILED DESCRIPTION

[0016] Before the embodiments of the disclosure are explained in detail, it should be noted that the disclosure, in its application, is not limited to the details of the design and arrangement of the components mentioned in the following description or illustrated in the drawings. The disclosure may have other embodiments and be exercised or carried out in a variety of ways. Furthermore, it should be noted that the language and terminology used herein serve the purpose of description and should not be considered restrictive. The use of "include" and "comprise" and variations thereof are intended to include the elements and equivalents listed thereafter, as well as additional elements and equivalents thereof. Throughout the disclosure, the expressions "approximately" and "about" mean plus or minus 5% of the number following each expression.

[0017] Embodiments of the present disclosure provide a Christmas tree fastener assembly comprising a cap, a base from which a Christmas tree section extends, and a retaining strap connecting the cap to the base. The features described herein allow the Christmas tree fastener assembly to remain coupled to an object during transport or assembly. Although the disclosure below relates in particular to a Christmas tree fastener with offset wing sections along opposite sides of the shaft, it is conceivable that alternative types of Christmas tree fastener configurations could be implemented.

[0018] Fig. 1 represents a well-known Christmas tree fastening element 20 that a head 22 and one that moves away from the head 22 outwardly extending shaft 24 contains. The head 22is generally round with a slightly protruding convex top. 26 and a generally planar underside 28 , which is the top 26 on one side 30 of the head 22 adds. The shaft 24 extends longitudinally from the underside 28 of the head 22 The shaft 24 contains a number of wings 32 , which run along a length of the shaft 24 are designed to extend radially outwards and have a generally circular shape. Some of the wings 32 They have interrupted sections with indentations. 34 in sections of the wings 32 are provided. The Christmas tree mounting element. 20 from Fig. Figure 1 is provided for illustrative purposes only, and sections of the Christmas tree mounting element 20can be used or included in the fastening element arrangement with retaining strap described below.

[0019] The Fig. 2-7 represent a fastening element or a Christmas tree fastening element arrangement 40 according to a first embodiment of the present disclosure, and the Fig. 8-12 represent a fastening element or a Christmas tree fastening element arrangement 40' according to a second embodiment of the present disclosure. In particular, the Fig. 2, Fig. 3, Fig. 8 and Fig. 9 With reference to this, the fastening element arrangements are 40 , 40' with a material 42 shown coupled, which is intended for environmental purposes.

[0020] In certain embodiments, the fastening element arrangement includes 40 , 40' a cap 44 , a cap that deviates from the cap 44extending tether 46 , a base 48 and one that moves from the base 48 extending shaft 50 The cap 44 is over the tape 46 directly with the base 48 tied together.

[0021] During the Fig. The first embodiment shown in 2-7 is the cap 44 of circular shape and contains a top surface 52 , which is generally smooth or generally convex, and a side surface 54 , which extend around a circumference of the cap 44 extends. In some embodiments, the band 46 integral with the side surface 54 the cap 44 coupled and extends outwards from it. In other embodiments, the band can 46 integral with the side surface 54 and / or the underside 28 and / or the top 52 or combinations thereof. The band 46includes a generally lateral upper and lower section 56 , 58 , which cross a curved section 60 are connected.

[0022] On Fig. 4 Referring to this, the upper lateral section 56 of the band 46 a length L1 up, and the lower lateral section 58 the band has a length L2 up. The length L1 of the upper lateral section 56 of the band 46 is greater than the length L2 of the lower lateral section 58 of the band 46 In some embodiments, the lengths can be L1 and L2 However, they may be the same or substantially the same. In some embodiments, the length may vary. L2 greater than the length L1 It may depend on the specific application of the fastening element arrangement. 40 can the lengths L1 , L2the lateral sections 56 , 58 of the band 46 be modified. The curved section 60 of the band 46 is generally used to connect the lateral sections 56 , 58 of the band. In some embodiments, the curved section 60 of the band 46 also act as a spring that supports the cap 44 the fastening element arrangement 40 can allow jumping in the direction of arrow A when the cap 44 from the base 48 the fastening element arrangement 40 is removed.

[0023] On the Fig. 4-7 and Fig. Referring to 8-12, the shaft 50 the fastening element arrangement 40 shown more clearly. Several flanges 62 extend from the shaft 50 outwards, with the multiple flanges 62 also with a subpage 64the base 48 are coupled. The multiple flanges 62 extend from the shaft there 50 radially outwards, where the shaft 50 the base 48 cuts. Several first wings 66 and several second wings 68 extend in the representation from the shaft 50 outwards. The first several wings 66 are of the several second wings 68 staggered, creating a staggered Christmas tree structure. The several first wings 66 are closer to the flanges 62 as the several second wings 68 arranged. As with the Christmas tree mounting element. 20 from Fig. As mentioned above, several fir tree configurations are possible; however, using an offset fir tree structure offers several advantages. For example, fir tree fasteners with offset wings can exhibit improved holding power compared to non-offset fir tree fasteners, due to the offset of the first wings. 66 from the second wings 68 allows a larger number of wings 66 , 68 axially along the shaft 50 to arrange. Furthermore, offsetting the first wings reduces 66 from the second wings 68 the axial distance found between vertically adjacent rows of wings; thus, the staggered fir tree fastening element arrangement 40 possibly better able to handle the material 42 , which is due to the manufacturing process of the material 42to record and document the inherent tolerances that may result in slight deviations in thickness.

[0024] On the Fig. 2, Fig. 3 and Fig. 8 Referring to, two sets of the several first wings 66 as well as the several second wings 68 provided, with the sentences on opposite sides of the shaft 50 are arranged. Consequently, four groups of wings extend from the shaft. 50 .

[0025] Especially regarding the Fig. 4 and Fig. 10. Referring to the Christmas tree fastening element arrangement 40 , 40' shafts 50 , which have a different length than currently shown. Similarly, embodiments of the Christmas tree fastening element arrangement may have more or fewer wings. 66 , 68 including those that extend axially along the length of the shaft 50are arranged accordingly. It is understood that a wide variety of shaft lengths or wing configurations can be used while still complying with the present disclosure.

[0026] On the Fig. 4, Fig. 5, Fig. 10 and Fig. 11. Referring to, is a head 70 of the shaft 50 shown. The head 70 extends from a distal end of the shaft 50 outwards. The head 70 has a tip 72 , which is generally rounded, but can generally be planar, and a head surface 74 , from the top 72 generally angled. The head surface 74 Ends at a top 76 of the head 70 , which extend inwards towards the shaft 50 extends. The head 70It may be provided in several alternative configurations and may include additional features not specifically disclosed here.

[0027] On the Fig. 6 and Fig. 7. Referring to section 7, cross-sectional views of the fastening element arrangement are shown. 40 shown. The cap 44 is shown as a component that is part of the band 46 and the base 48 The components shown are separate and are shown as integral parts. In a preferred embodiment, the cap is... 44 , the band 46 , the base 48 , the head 70 and the shaft 50 A single, integral component that can allow for efficiency improvements during the manufacturing or molding process. In cases where the fastening element arrangement 40Since it is a single, integral component, manufacturing tools can be optimized and manufacturing time and costs reduced. In the illustrated embodiments, the cap 44 However, one component, and the band 46 , the base 48 , the shaft 50 and the head 70 are another component that comes with the cap 44 is coupled. The cap 44 and the base 48 the fastening element arrangement 40 are shown in a locked configuration.

[0028] Still on the Fig. 6 and Fig. 7. Referring to this, the locked configuration is achieved by coupling the cap together. 44 and the base 48 about locking features 80 achieved. The locking features 80They can be secured by a snap lock, an interference fit, a crimp connection, a shrink fit, a ramp, or any other mechanical fit. In the illustrated embodiment, the locking features include 80 several first arms 82 , which are from a subside 84 the cap 44 hang down, and have a ring-shaped edge 86 , which extends from a top 88 the base 48 extends upwards. Between the first several arms 82 are several rooms 90 designed to provide increased flexibility and better grip for the first arms 82 with the edge 86 allow. As mentioned above, various locking features are possible. Again, the Fig. 4 and Fig. 5 Referring to, are in the margin 86 Split 92 provided for, which may be intended to be one of the first arms82 accessible to a user's tool to prevent the cap from popping out 44 from the base 48 to cause this. For example, the head of a slotted screwdriver can be forced into one or more of the columns. 92 be introduced to be one of the first arms 82 from the edge 86 to move out.

[0029] During the Fig. The second embodiment shown in 8-12 includes the fastening element arrangement. 40' a cap 44 , which is generally disc-shaped, a base 48 and a band 46 , which connects the cap to the base. In some embodiments, the cap 44 , the base 48 and the band 46 integrally trained. The cap 44 contains a top 52 , a subpage 84 and a central hole 93 , which extends axially through the top and bottom 52 , 84extends. The base 48 contains a shaft 50 , which extends from a subside 64 the base 48 extends downwards, and several first wings 66 and several second wings 68 , which are reflected in the representation of the shaft 50 extend outwards. In some embodiments, the multiple first wings can 66 in the longitudinal direction of the several second wings 68 They may be offset. Furthermore, several flanges extend into the illustration. 62 from the underside of the base 48 .

[0030] On the Fig. Referring to 10-12, the cap 44 and the base 48 the fastening element arrangement 40' shown in a locked configuration, with the cap 44 about locking features 80 with the base 48 is coupled. The locking features 80They can be secured via a snap lock, a press fit, a crimp connection, a shrink fit, a ramp, or any other mechanical fit. Especially on Fig. 12. Referring to this, the locking features include 80 several first arms 82 , which are from the underside 84 the cap 44 hang down and curve inwards towards the central hole 93 extend, and form a ring-shaped border 86 , which extends from a top 88 the base 48 extends upwards. To place the fastener assembly into the locked configuration, a user first positions the cap. 44 above the base, such that the central hole 93 coaxial to the annular edge 86 is aligned. Next, the user applies downward pressure to the cap. 44 so that the ring-shaped edge 86 on the several first arms82 past and through the central hole 93 extends. Towards the Fig. 9 and Fig. 12 Referring to, there are between the several first arms 82 several rooms 90 The several rooms are planned. 90 ensure increased flexibility of the first arms 82 , so that the first arms 82 bend and in the ring-shaped edge 86 can be recorded. The several rooms 90 can also allow one of the first arms 82 accessible to a tool to prevent the cap from being dislodged 44 from the base 48 to effect.

[0031] Once again, focus on the Fig. Referring to pages 8-12, the basis contains 48 a recessed area 94 , which is defined by an inner circumference of the ring-shaped rim 86 is defined. In some embodiments of the present invention, the recessed area can be used. 94a driving feature 96 be arranged. The drive feature 96 is configured to receive and engage a drive tool to install the fastener assembly 40 to facilitate insertion into a threaded hole. In such an application, a user would remove the shaft. 50 the Christmas tree fastening element arrangement 40 align with the threaded bore, one working end of the drive tool in the drive feature 96 place and then operate the drive tool so that several first and second wings 66 , 68 engage with the threaded bore. The depicted environment shows a drive feature. 96 , which is configured to engage with a Phillips screwdriver; however, many configurations of the drive feature exist. 96 Consideration. For example, the drive feature could be 96This includes a slot, a Phillips head, an opening, a recess, a notch, a polygonal projection, or any other feature configured to engage with the working end of a suitable drive tool. Some examples of suitable drive tools might include screwdrivers with any drive configuration, socket wrenches with any attachment configuration, a rubber, wooden, or other hammer.

[0032] The embodiments shown here depict the cap. 44 as generally disc-shaped and the base 48 as generally cylindrical; however, it is understood that for aesthetic or other reasons alternative geometries of the cap are possible. 44 or the base 48 can be used while still complying with the present invention.

[0033] Although various terms relating to space and direction, such as top, bottom, lower, middle, lateral, horizontal, vertical, front, and the like, may be used to describe embodiments of the present disclosure, it is understood that such terms are used only with respect to orientations shown in the drawings. The orientations may be reversed, rotated, or otherwise changed so that an upper part becomes a lower part and vice versa, horizontal becomes vertical, and so on.

[0034] Variations and modifications of the foregoing are within the scope of protection of this disclosure. It is understood that the embodiments disclosed and defined herein include all alternative combinations of two or more of the individual features mentioned or apparent from the text and / or the drawings. All of these different combinations constitute different alternative aspects of this disclosure. The embodiments described herein explain the best known ways of carrying out the disclosure and enable other persons skilled in the art to use the disclosure. The claims are to be interpreted as including alternative embodiments to the extent permitted by the prior art.

[0035] It is obvious to those skilled in the art that, although the invention has been described above in connection with certain embodiments and examples, the invention is not necessarily limited in this way and that numerous other embodiments, examples, uses, modifications, and deviations from the embodiments, examples, and uses are also intended to be included in the claims appended hereto. The following claims list various features and advantages of the invention. QUOTES INCLUDED IN THE DESCRIPTION

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

[0000] US 62 / 790711

[0001]

Claims

[1] Christmas tree fastening element assembly comprising: a cap; a base; a band connecting the cap to the base; and a shaft extending from the base, with several wings extending radially outwards from the shaft. [2] Christmas tree fastening element arrangement according to claim 1, wherein the cap, the band, the base and the shaft are integrally formed. [3] Christmas tree fastening element arrangement according to claim 1, wherein the multiple wings comprise multiple first wings and multiple second wings, such that the multiple first wings are offset longitudinally from the multiple second wings. [4] Christmas tree fastening element arrangement according to claim 3, wherein the cap can be fixed to the base by means of one or more locking features extending from the cap and / or the base. [5] Christmas tree fastening element arrangement according to claim 4, wherein the one or more locking features include a first locking feature comprising at least one arm hanging down from a first surface of the cap. [6] Christmas tree fastening element arrangement according to claim 5, wherein the one or more locking features further include a second locking feature comprising an annular rim extending upwards from a second surface of the base, wherein the annular rim is configured to engage with the at least one arm. [7] Christmas tree fastening element arrangement according to claim 6, wherein the at least one arm comprises several first arms separated by several spaces. [8] Christmas tree fastening assembly according to claim 7, wherein the annular rim includes one or more slots configured to allow one of the multiple first arms to be accessible to a tool to disengage the cap from the base when the Christmas tree fastening assembly is in a locked configuration. [9] One-piece Christmas tree mounting element, comprising: a cap; a base; a band connecting the cap to the base; a shaft extending from the base; and several wings extending radially outwards from the shaft, wherein the one-piece Christmas tree fastener is movable between an unlocked configuration, such that the cap is positioned at a first distance from the base, and a locked configuration, such that the cap is positioned at a second distance from the base, the first distance being greater than the second distance. [10] One-piece Christmas tree fastening element according to claim 9, wherein the multiple wings comprise multiple first wings and multiple second wings, wherein the multiple first wings are offset longitudinally from the multiple second wings. [11] One-piece Christmas tree fastening element according to claim 10, wherein the cap is detachably fixed to the base via at least one locking feature when the one-piece Christmas tree fastening element is in the locked configuration. [12] One-piece Christmas tree fastener according to claim 11, wherein the at least one locking feature comprises at least one first arm hanging down from the cap and an annular rim hanging down from the base, wherein the at least one first arm is configured to engage with the annular rim when the one-piece Christmas tree fastener is in the locked configuration. [13] One-piece Christmas tree fastening element according to claim 12, wherein the at least one first arm comprises several first arms hanging from an underside of the cap, wherein the several first arms are arranged in a radial configuration and are separated by several spaces. [14] One-piece Christmas tree fastener according to claim 13, wherein the cap further includes a central hole extending axially through it, wherein the multiple first arms are arranged radially around the central hole, wherein the annular rim of the base is configured to extend axially through the central hole when the one-piece Christmas tree fastener is moved into the locked configuration. [15] One-piece Christmas tree fastening element according to claim 14, wherein the annular rim of the base defines a perimeter of a recessed area and a drive feature is arranged in the recessed area, wherein the drive feature is configured to interact with a working end of a drive tool. [16] Fastening element arrangement for attaching at least one material to an outer surface of a first object, wherein the at least one material contains an opening and the outer surface of the first object contains a bore, comprising: a cap with a first locking feature; a base with a second locking feature; a band connecting the cap to the base; a shaft extending from the base; and several wings extending radially outwards from the shaft, wherein the fastening element arrangement is movable between an unlocked configuration, such that the first locking feature is not engaged with the second locking feature, and a locked configuration, such that the first locking feature is engaged with the second locking feature. [17] Fastening element arrangement according to claim 16, wherein the cap, the base, the band and the shaft are integrally formed. [18] Fastening element arrangement according to claim 17, wherein the second locking feature includes an annular rim extending axially upwards from a top of the base. [19] Fastening element arrangement according to claim 18, wherein, when the fastening element arrangement is in the unlocked configuration, the opening of the at least one material can pass over the annular edge of the base, so that subsequent movement of the fastening element arrangement from the unlocked configuration to the locked configuration fixes the at least one material between the cap and the base. [20] Fastening element arrangement according to claim 19, wherein the annular rim defines a circumference of a recessed area, the recessed area containing a drive feature therein, the drive feature being configured to engage with a drive tool so that the drive tool can be used to install the fastening element arrangement in the bore of the first object.