Connection means, connection means blank, a connection system and method for producing a connection means
Patent Information
- Application Number
- EP2024700955
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-02-21
- Filing Date
- 2024-01-15
- Publication Date
- 2025-12-31
AI Technical Summary
Existing fasteners with grooves often experience poor thread formation and mechanical failure due to increased contact pressure, especially when used in applications requiring adjustment options.
A fastener design featuring a cylindrical support area between the thread region and the primary distal end, which provides additional support during the thread rolling process, preventing bending moments and ensuring good thread formation even with a groove present, along with a method for producing fasteners using a thread-stamping area in a blank that transforms into a threaded area.
The design achieves a well-formed and durable thread opposite the groove, enhancing mechanical strength and preventing mechanical failures during manufacturing, allowing for secure and reversible connections.
Smart Images
Figure EP2024050762_29082024_PF_FP_ABST
Abstract
Description
[0001] Connecting means, connecting means blank, a connecting means system and method for producing a connecting means
[0002] The invention relates to a connecting means, a connecting means blank, a connecting means system and a method for producing a connecting means.
[0003] Fasteners are already known from the prior art. These, like the invention, serve to connect two components to one another, particularly irreversibly. Some fasteners have a groove intended to serve as a positive locking mechanism for a washer or other objects, particularly for adjustment purposes. However, due to this groove, the thread opposite the groove is often poorly formed, or the increased contact pressure often leads to failure of the fastener during use.
[0004] It is an object of the invention to provide a connecting means which, despite the groove, has a good thread formation and can be manufactured safely.
[0005] This object is achieved with a connecting means according to claim 1, with a connecting means blank according to claim 2, with a connecting means system according to claim 13 and with a method for producing a connecting means according to claim 14. Further features, advantages or embodiments emerge from the subclaims, the description and / or the figures. According to the invention, a connecting means. The connecting means, which can in particular be a bolt or a screw, comprises in particular a head region and a threaded region, wherein the head region has actuating surfaces, wherein the threaded region extends along and around a longitudinal direction, wherein the threaded region has a thread or is formed by a thread whose center line lies on the longitudinal direction, wherein the threaded region has a groove introduced in a radial direction, which extends in particular parallel to the longitudinal direction,wherein the radial direction is perpendicular to the longitudinal direction, wherein a circumferential direction is in particular perpendicular to the radial direction and / or the longitudinal direction, wherein the connecting means has a primary distal end which is closer to the threaded region, in particular in the longitudinal direction, than to the head region, wherein a support region, in particular a cylindrical one, is preferably provided between the primary distal end and the threaded region. The connecting means serves to mechanically connect a wide variety of components and / or sections to one another, in particular within the framework of a force-locking and / or reversible connection. Alternatively, the connecting means can also be a form-locking connection. The connecting means is also particularly useful for adjusting, in particular, a chassis,suitable and / or intended. The connecting means comprises a head region. This head region forms, in particular, a distal end in the longitudinal direction of the connecting means. Advantageously, the head region is therefore designed such that it forms a distal end of the connecting means that is opposite the primary distal end in the longitudinal direction. In order to enable torque transmission to the head region, the head region can have actuating surfaces. These actuating surfaces expediently have a normal that is directed in or parallel to the radial direction. The actuating surfaces can form a polygon or a multi-round shape with one another. For example, the actuating surfaces can form a hexagon socket or an external hexagon with one another. The radial direction is, in particular, the directionwhich is expediently perpendicular to the longitudinal direction. The longitudinal direction, on the other hand, is in particular the direction in which the length of the threaded area and / or the connecting means is determined. The circumferential direction, in particular, is perpendicular to the longitudinal direction and / or the radial direction. Advantageously, the longitudinal direction, the radial direction, and the circumferential direction form a cylindrical coordinate system with one another, whereby the longitudinal direction can form the height coordinate, the radial direction the radial coordinate, and the circumferential direction the angular coordinate. The center line of the thread provided in the threaded area lies in particular in the longitudinal direction, or this center line can be congruent with the longitudinal direction, at least in sections. A center line is understood to be the line from which the core radius or the flank radius of the thread is determined. In other words, the center line is therefore the central axis,around which the thread is formed. The threaded region can encompass the thread or be formed by the thread. A groove is formed in the threaded region, which is radially introduced into the threaded regions. In other words, the groove can therefore be formed in a plane perpendicular to the longitudinal direction or to the center line in such a way that it is introduced into the thread in the radial direction from the outside to the inside. The longitudinal extent of the groove is formed in particular parallel to the longitudinal direction. In other words, the groove can therefore be formed rectilinearly and / or parallel to the longitudinal direction. The groove serves in particular toto achieve a positive-locking anti-twist feature of an eccentric element and / or a disc. In other words, when the connecting means is used as an adjustment means - by inserting an eccentric element into the groove - an adjustment option can be achieved. In other words, the invention can also relate to an adjustment system comprising a connecting means and a separate eccentric element and / or a disc, wherein the eccentric element in particular has an externally circumferential surface whose center of gravity or center point is spaced from the longitudinal direction or the center line in order to achieve eccentricity. The eccentric element or the disc engages in particular at least partially, in particular by means of a projection or other anti-twist structure, in the groove and / or surrounds the connecting means, in particular in the threaded area.in which the groove is also present. The connecting means also has a primary distal end, which is closer to the threaded area, in particular in the longitudinal direction, than to the head area. The primary distal end serves in particular to be inserted into the counter element first in order to achieve fastening of the connecting means. The primary distal end is therefore in particular the distal end of the connecting means opposite the head area, in particular in the longitudinal direction. The primary distal end is in particular closer to the threaded area than to the head area, viewed in the longitudinal direction. In other words, the distance from the primary distal end to the threaded area is therefore smaller than the distance to the head area, viewed in the longitudinal direction. Between the primary distal end and the threaded area, the in particular cylindrical or at least substantially cylindrical,Support area is provided. This support area is expediently provided in such a way that it is rotationally symmetrical, in particular with the exception of a possible groove and / or a thread, about the longitudinal direction. This allows a particularly simple and effective support option for the support area to be provided. Advantageously, the support area can have a thread and / or be designed without a groove. In a preferred embodiment, the thread of the threaded area can therefore extend into the support area, wherein in this embodiment the support area is advantageously designed without a groove. Alternatively, the support area can also be designed without a thread, which can in particular increase the supporting effect. In particular, the length of the support area in the longitudinal direction is at least 0.1 times the diameter of the thread, preferably at least 0.5 times and particularly preferably at least 1,0 times the diameter of the threaded area. Alternatively, the length of the support area can also be at least 10% of the total length of the connecting means in the longitudinal direction, preferably at least 15%, and particularly preferably at least 20% of the total length of the connecting means in the longitudinal direction. This allows sufficient support capacity to be achieved during the thread rolling process. The fundamental purpose of the support area is to allow additional forces to be exerted during the stamping, forming, and / or reshaping of the thread during a manufacturing process, which forces can be safely supported by the support area. This allows the local contact force to be further increased, particularly during a forming process for producing the thread, in order to achieve a particularly well-formed and dimensionally accurate thread.especially in the area opposite and / or closest to the groove. In other words, the drop zone can be used during production to dissipate additional support forces. By arranging the support zone between the threaded area and the primary distal end, adverse bending moments or bending stresses can be prevented and / or reduced, thus reducing negative mechanical influences on the fastener or fastener blank, especially during the production of high-strength or even ultra-high-strength components.
[0006] A further aspect of the invention can relate to a fastener blank. The fastener blank is used in production to form a fastener as described above and / or below. The elements already described for the fastener can also be present in the fastener blank, however, instead of the threaded area, a thread stamping area is present in the fastener blank, which serves in particular to provide a thread by means of a thread forming process or to form a thread in the thread stamping area in order to thus provide a thread area. The transformation from the fastener blank to the fastener therefore takes place in particular exclusively by forming the thread stamping area of the typethat a threaded area is created. In other words, the thread stamping area of the fastener blank is therefore thread-free and can otherwise have the same or the same features as the threaded area. In other words, the invention can advantageously also relate to a fastener blank, in particular for producing a bolt or a screw, advantageously comprising a head area and a thread stamping area, wherein the head area in particular has actuating surfaces, wherein the thread stamping area extends along and around a longitudinal direction, wherein the thread stamping area is designed to stamp a thread in said actuating surfaces, the center line of which lies in the longitudinal direction, wherein the thread stamping area has a groove introduced in a radial direction, which extends in particular parallel to the longitudinal direction, wherein the radial direction is perpendicular to the longitudinal direction,wherein a circumferential direction is in particular perpendicular to the radial direction and / or the longitudinal direction, wherein the connecting means blank has a primary distal end which is closer to the thread stamping area, in particular in the longitudinal direction, than to the head area, wherein a support area, in particular a cylindrical one, is provided between the primary distal end and the thread stamping area. The features already presented with regard to the connecting means, in particular concerning the head area, the actuating surfaces, the longitudinal direction, the radial direction, the circumferential direction, the groove, the primary distal end and the support area can be provided in the same and / or in an equivalent manner in the connecting means blank. In contrast, the features presented with regard to the thread area in the connecting meansapply in an equivalent manner to the thread stamping area of the fastener blank. This also applies in reverse, of course, so that the features, advantages, and design of the fastener blank can also be implemented in an equivalent manner in the fastener, unless this is precluded due to the missing thread in the fastener blank. The thread stamping area of the fastener blank can be cylindrical or at least essentially cylindrical. Essentially cylindrical can be understood as meaning that the basic geometry is almost exclusively rotationally symmetrical about the cylinder axis. Almost exclusive rotational symmetry exists in particular when, in a cross-section perpendicular to the cylinder axis / axis of rotational symmetry, which can run parallel to the longitudinal direction, the shaft area and thread stamping area always have the same width or the same distance.However, the groove is not taken into account in this analysis. Therefore, cylinders and cones, in particular, are to be considered as an almost exclusively rotationally symmetrical design.
[0007] The fastener and / or the fastener blank are, in particular, formed in one piece. This allows for particularly high mechanical strength to be achieved. "One piece" means, in particular, that the fastener / component was not created by joining multiple components. Alternatively, "one piece" can also mean that the fastener / component was manufactured in a primary forming process. Alternatively, the fastener can also be formed from multiple components, in particular caulked together.
[0008] The fastener and / or fastener blank are made, in particular, of a high-strength or ultra-high-strength material. A high-strength material is, in particular, a material whose tensile limit or tensile strength is at least 800 N / mm 2 , preferably at least 1000 N / mm 2 , is. An ultra-high-strength material, on the other hand, has a tensile limit or tensile strength of at least 1200 N / mm 2 , preferably at least 1400 N / mm 2 By using a high-strength or ultra-high-strength material, the fastener can be classified in strength classes 8.8, 10.9, 12.9, or even 14.8, or 14.9, 15.8U, 15.9U, or higher. In other words, the fastener can be within or have these strength classes.
[0009] Advantageously, the support region is designed to be groove-free, in particular completely. This can prevent sudden loading of the support region, in particular during production. Furthermore, this can also and / or additionally reduce the local surface pressure during the manufacturing process. In particular, the groove is therefore designed such that its distal ends can be located within the threaded region in the longitudinal direction. Alternatively, the end of the groove facing the primary distal end, viewed in the longitudinal direction, can also preferably be provided in the threaded region. Alternatively or additionally, the support region can also preferably be designed to be groove-free only in sections. In other words, some parts of the drop region can provide the groove and other parts of the support region can be groove-free. Thus, in particular, a distal end of the groove can be provided in the drop region.
[0010] Furthermore, the groove can alternatively also extend through the support area. This allows for particularly simple production of the groove, for example, by a milling process. Advantageously, the groove is produced by forming. This allows for a particularly fatigue-resistant design, which can also, in particular, lead to material hardening.
[0011] The support region preferably tapers towards the primary distal end, at least in sections in the longitudinal direction. In other words, the support region can have a reduced outer diameter / outer circumference when viewed in the longitudinal direction. For example, this can be achieved by chamfering the support region. This taper is provided in particular such that the support region has a decreasing outer diameter in the longitudinal direction towards the primary distal end and / or a decreasing minimal spacing of the outer circumference from the central axis and / or from the longitudinal direction. This makes it particularly easy to apply an element to the connecting means, in particular a disk or an eccentric element, which can in particular also be designed as a disk.
[0012] In an advantageous embodiment, the taper of the support region follows a rounding radius and / or a straight line in a sectional plane spanned by the longitudinal direction and the radial direction, wherein the center point of the rounding radius advantageously overlaps the groove, in particular in the longitudinal direction. In other words, the taper can be formed by a rounding, wherein the center point of this rounding overlaps the groove, in particular in the longitudinal direction. In this context, “overlapping” is to be understood to mean, in particular, that the center point of the rounding radius, when projected onto the longitudinal direction, lies in a region which is also covered by the projection of the groove onto the longitudinal direction. The rounding radius is provided, in particular, in a sectional plane spanned by the longitudinal direction and the radial direction. This sectional plane expediently also intersects the groove oris designed such that the cutting plane is arranged along the main extension direction of the groove. In other words, the rounding radius is therefore arranged on the opposite side of the groove in the radial direction. By providing a rounding radius in the taper or by forming the taper by a rounding radius, a particularly simple possibility can be created for threading a disc and / or an eccentric element into the groove. This is particularly true if the groove is not designed as a freely extending groove, but rather has a distal end which can be designed at a distance in the longitudinal direction from the primary distal end of the connecting means and / or the connecting means blank. In other words, the course of the groove cannot therefore be formed by an end face of the connecting means blank and / or the connecting means.
[0013] In a preferred embodiment, the threaded region or the threaded stamping region tapers toward the primary distal end, at least in sections in the longitudinal direction. In particular, this tapered region of the threaded region merges into the tapered region of the support region. In other words, the taper of the support region can extend into the threaded region and / or the taper can be continuous or discontinuous in the threaded region. This can further support or improve the threading capability of a disc and / or an eccentric element.
[0014] In an alternative or additionally preferred embodiment, the support region is designed such that a disk or an eccentric element with an anti-twist structure of the disk and / or the eccentric element can be inserted into the groove, wherein the disk or the eccentric element can be guided along the entire length of the groove and the groove and the anti-twist structure advantageously prevent or can be prevented by a form-fitting manner from rotating relative to the connecting means and / or the connecting means blank, in particular about the longitudinal direction. In other words, the support region can therefore be designed such that it enables the threading of a disk or an eccentric element onto the connecting means and, at the same time, engagement of an anti-twist structure of the disk or the eccentric element with the groove is also possible. The anti-twist structure of the disk orThe eccentric element can, in particular, be an inwardly facing projection which, in an assembled state, engages or can be brought into engagement with, in particular, the flanks of the groove in such a way that rotation of the disc or the eccentric element relative to the connecting means and / or the connecting means blank is positively prevented by the contact between the anti-rotation structure and the groove. In other words, the anti-rotation structure can, in particular, be a radially inwardly facing projection of the disc or the eccentric element in a central recess or a central opening of the disc or the eccentric element.
[0015] In an advantageous embodiment, the support region has a cylindrical segment in the circumferential direction. A cylindrical segment is understood in particular to mean that, viewed in the circumferential direction, at least part of the shell of the support region follows a cylinder. This allows for particularly simple production of the support region.
[0016] Advantageously, the cylindrical segment has a constant radius of curvature over a circumferential angle in the circumferential direction of preferably at least 30°, preferably at least 90°, and most preferably at least 175°. In other words, the cylindrical segment can therefore extend in the circumferential direction over at least 30°, preferably at least 90°, and most preferably over at least 175°. This makes it possible to achieve particularly simple production and a particularly advantageous, low-injury assembly option for a disc and / or an eccentric element. Alternatively or additionally, the circumferential angle preferably increases in the direction of the head. In other words, the circumferential angle is larger or increases in the direction of the head with a constant radius of curvature.
[0017] The groove is preferably designed as a closed groove. A closed groove is understood to be a groove whose outer contour forms a self-contained element. Alternatively, or additionally, a closed groove can also be understood to be a groove that does not have a free, tapered end and / or whose end is not delimited by an end wall with a diameter jump. In other words, the groove can therefore have ends that do not coincide with a distal end of the region that partially accommodates the groove. This makes it possible to achieve a particularly mechanically resilient structure.
[0018] Advantageously, a drive region, in particular one having positive locking means, is present between the primary distal end and the threaded region or the drop region and / or if it is a connecting means blank, a drive region, in particular one having positive locking means, can be present between the primary distal end and the threaded stamping region or the support region. A drive region is to be understood in particular as having means which allow torque transmission, in particular a positive torque transmission, to the connecting means blank and / or the connecting means. The arrangement between the threaded region or the threaded stamping region and the primary distal end enables particularly good and secure torque transmission, with only a few areas being loaded by the additional drive torque.The drive region is expediently provided between the primary distal end and the support region. This allows particularly good access to the drive region. A form-locking means can be understood in particular as a means or structure which has actuating surfaces in order to achieve a form-fitting torque transmission. In particular, these form-locking means and / or the actuating surfaces can form a polygon and / or a multi-round shape relative to one another. In particular, this polygon and / or this multi-round shape is an external polygon and / or an external multi-round shape. This can in particular increase the accessibility of the drive region. Alternatively or additionally, the drive region can also preferably be designed as an internal multi-round shape / or an internal polygon. The advantage of such a design is in particular a particularly compact overall length.The connecting element is preferably an eccentric bolt or an eccentric screw. This allows for a particularly advantageous fastening option for an eccentric bolt and / or improves its thread design.
[0019] The maximum diameter of the threaded area is expediently larger than the maximum diameter of the support area. In other words, the outer diameter of the threaded area and / or the maximum diameter of the thread stamping area can be larger than the maximum diameter of the support area. This can further simplify and improve thread production. In particular, any obstruction to thread production caused by the support area can be prevented or at least reduced.
[0020] In an advantageous embodiment, the ratio of the maximum diameter of the support region to the diameter of the threaded region and / or to the diameter of the threaded region is in a range from 0.3 to 1.0 and preferably in a range from 0.5 to 0.8. If the ratio is in a range from 0.3 to 1.0, this can result in particularly secure mechanical support during manufacture of the connecting means and / or machining of the connecting means blank. If, on the other hand, the ratio is in a range from 0.5 to 0.8, this can result in particularly cost-effective production, in particular by forming the threaded region and / or by producing the thread by forming. This appears to be particularly due to the fact that a sufficient distance results between the support region and the threaded region in the radial direction.
[0021] A further aspect of the invention can relate to a connecting means system, wherein the connecting means system includes and / or comprises at least one connecting means as previously and / or subsequently. Alternatively or additionally, the connecting means system can preferably also comprise a disk and / or an eccentric element, which can in particular be designed as a disk. The disk and / or the eccentric element expediently engages positively with the groove, so that a torque can be transmitted positively around the longitudinal direction between the disk and / or the eccentric element and the groove. In this way, a positive torque transmission between the disk or the eccentric element and the connecting means can be achieved in a particularly simple manner.
[0022] A further aspect of the invention may relate to a method for producing a connecting means, in particular as described above and / or below. The method for producing a connecting means advantageously comprises the steps:
[0023] - Providing a connecting means blank, in particular as described above and / or below and / or wherein the connecting means blank has a head region and a thread stamping region, wherein the head region has in particular actuating surfaces, wherein in the thread region in particular a groove is provided, in particular a formed groove, wherein the thread stamping region advantageously extends in the longitudinal direction, wherein the connecting means blank in particular has a primary distal end which is closer to the thread region, in particular in the longitudinal direction, than to the head region, wherein between the primary distal end and the thread stamping region advantageously a support region, in particular one without a groove, is provided,
[0024] - Applying one or more, in particular two, thread forming tools to the thread stamping area, so that a thread is formed in the thread stamping area, in particular by forming, wherein preferably, in particular at the same time as the application of the thread tool(s), a support tool and / or the thread forming tool is applied to the support area, in particular opposite to at least one thread forming tool and / or the groove.
[0025] The support tool can, in particular, be a piece and / or a component of the thread forming tool. By applying a supporting tool, in particular a support tool, to the support areas of the fastener blank, it is possible to apply higher forces in the radial direction to the fastener blank, in particular for forming the thread. This ultimately leads to greater dimensional accuracy and / or void retention of the thread.
[0026] In an advantageous development of the method, the fastener blank is designed such that a drive region, in particular having form-locking means, is provided between the primary distal end and the thread-forming region or the support region, in particular in the longitudinal direction. A torque, in particular in the longitudinal direction, is transmitted to the drive region in a form-locking manner, in particular simultaneously with the application of the thread-forming tool(s). The drive region could be used to transmit a torque to the fastener blank during its thread-making process. This makes it unnecessary, in particular, for the thread-forming tools to apply the torque exclusively in the longitudinal direction.As a result, not only can the friction between the forming tools, which are in particular thread forming tools, and the connecting means blank be used for torque transmission, but rather a further torque transmission option can be provided by the provision of the drive area, as described in particular above and below.
[0027] Further advantages and features of the present invention will become apparent from the following description with reference to the figures. Individual features of the illustrated embodiments may also be used in other embodiments, unless expressly excluded.
[0028] Figure 1 shows a distal end section of a connecting means; Figure 2 shows an isometric view of a connecting means blank; Figure 3 shows a further isometric view of a connecting means blank, which can in principle match Figure 2; Figure 4 shows a connecting means system in sections; and Figure 5 shows a connecting means in an isometric view.
[0029] Figure 1 shows a primary distal end 4 of a connecting means 1 in the longitudinal direction L. The radial direction R is perpendicular to the longitudinal direction L. The circumferential direction U runs around the longitudinal direction L and is therefore also perpendicular to the radial direction R. The connecting means 1 is bordered in the longitudinal direction L by the primary distal end 4, whereby this primary distal end 4 also borders the drive region 60. The drive region 60 has a polygon in order to achieve a positive torque transmission around the longitudinal direction L. The support region 40 is located between the threaded region 30, which has a thread 32, and the drive region 60. The support region 40 is essentially cylindrical. The groove 34 extends from the threaded region 32 into the support region 40, whereby the groove 34 has a freely tapered end in the support region 40.
[0030] Figure 2 shows a fastener blank 200. The fastener blank 200 also has a groove 234, which is designed as a closed, tapered groove 234. In the illustrated embodiment, the fastener blank 200 is bordered in one direction in the longitudinal direction L by the head region 210, which has actuating surfaces 212. In the other direction of the longitudinal direction L, however, the fastener blank 200 is bordered by the primary distal end 204. The groove 234 is introduced into the thread stamping region 230 and extends into the support region 240 of the fastener blank 200. The support region 240 has a cylinder segment 242, which is formed directly adjacent to the groove 234 and the primary distal end 204. In Figure 3, a connecting means blank 200 is shown, which in principle already follows the embodiment shown in Figure 2, so that the
[0031] 3, the side of the connecting means blank 200 not visible can in principle correspond to the illustration in Figure 2. The support region 240 of the connecting means blank 200 is tapered in the longitudinal direction L. This tapered region is formed in particular opposite the cylinder segment 242, as can also be seen schematically in Figure 2 and Figure 3 when viewed together.
[0032] Figure 4 shows a connecting means system comprising a connecting means 1 and a disc 100 configured as an eccentric element. The disc 100 has an anti-rotation structure 110 that can be in positive engagement with the groove 34, thus providing a positive torque transmission between the disc 100 and the groove 34.
[0033] Figure 5 shows a connecting means 1 having a head region 10 with actuating surfaces 12. Between the head region 10 and the primary distal end 4 is the threaded region 30, which is formed by the thread 32.
[0034] List of reference symbols:
[0035] 1 - Connecting devices
[0036] 4 - primary distal end
[0037] 10 - Head area
[0038] 12 - Actuating surfaces
[0039] 30 - Thread range
[0040] 32 - thread
[0041] 34 - Groove
[0042] 42 - Cylinder segment
[0043] 40 - Support area
[0044] 60 - Drive range
[0045] 100 - Disc 110 - Anti-rotation structure
[0046] 200 - lanyard blank
[0047] 204 - primary distal end of the lanyard blank 200
[0048] 210 - Head area of the fastener blank 200 212 - Actuating surfaces of the head area 210
[0049] 230 - Thread stamping area
[0050] 234 - Groove of the fastener blank 200
[0051] 240 - Support area of the fastener blank 200
[0052] 242 - Cylinder segment L - longitudinal direction
[0053] R - radial direction
[0054] U - circumferential direction
Claims
Claims 1 . Fastening means (1), in particular a bolt or screw, comprising a head region (10) and a threaded region (30), wherein the head region (10) has actuating surfaces (12), wherein the threaded region (30) extends along and around a longitudinal direction (L), wherein the threaded region (30) has a thread (32) whose center line lies on the longitudinal direction (L), wherein the threaded region (30) has a groove (34) introduced in a radial direction (R), which extends in particular parallel to the longitudinal direction (L), wherein the radial direction (R) is perpendicular to the longitudinal direction (L), wherein a circumferential direction (U) is in particular perpendicular to the radial direction (R) and / or the longitudinal direction (L), wherein the connecting means (1) has a primary distal end (4) which is closer to the threaded region (30), in particular in the longitudinal direction (L), than to the head region (10), wherein preferably between the primary distal end (4) and the threaded region (30) a,in particular a cylindrical support area (40) is provided., 2. A connecting means blank (200) comprising a head region (210) and a thread stamping region (230), wherein the head region (210) in particular has actuating surfaces (212), wherein the thread stamping region (230) extends along and around a longitudinal direction (L), wherein the thread stamping region (230) is designed such that a thread (32) is stamped therein, the center line of which lies on the longitudinal direction (L), wherein the thread stamping region (230) has a groove (234) introduced in a radial direction (R), which extends in particular parallel to the longitudinal direction (L), wherein the radial direction (R) is perpendicular to the longitudinal direction (L), wherein a circumferential direction (U) is in particular perpendicular to the radial direction (R) and / or the longitudinal direction (L), wherein the connecting means blank (200) has a primary distal end (204) which is closer to the thread stamping region (230), in particular in the longitudinal direction (L), than to the head region (210), wherein a support region (240), in particular a cylindrical one, is provided between the primary distal end (204) and the thread stamping region (230).
3. Connecting means (1) or connecting means blank (200), wherein the support area (40, 240) is designed to be groove-free.
4. Connecting means (1) or connecting means blank (200) according to one of the preceding claims, wherein the support region (40, 240) tapers towards the primary distal end (4, 204), at least in sections in the longitudinal direction (L).
5. Connecting means (1) or connecting means blank (200) according to claim 4, wherein the taper of the support region (40, 240) in a sectional plane which is spanned by the longitudinal direction (L) and the radial direction (R) follows a rounding radius, wherein advantageously the center point (M) of the rounding radius overlaps with the groove (34, 234) in particular in the longitudinal direction (L).
6. Connecting means (1) according to one of the preceding claims, in particular according to claim 4 or 5, wherein the threaded region (30) tapers towards the primary distal end (4), at least in sections in the longitudinal direction (L), and / or connecting means blank (200) according to one of the preceding claims, in particular according to claim 4 or 5, wherein the thread stamping region (230) tapers towards the primary distal end (4), at least in sections in the longitudinal direction (L).
7. Connecting means (1) or connecting means blank (200) according to one of the preceding claims, in particular according to claim 4, 5 or 6, wherein the support region (40, 240) is designed such that a disk (100) with an anti-twist structure (110) of the disk (100) can be inserted into the groove (34), wherein the disk (100) can be guided along the entire length of the groove (34, 234).
8. Connecting means (1) or connecting means blank (200) according to one of the preceding claims, in particular according to claim 4, 5, 6 or 7, wherein the support region (40, 240) has a cylindrical segment (42, 242) in the circumferential direction (U).
9. Connecting means (1) or connecting means blank (200) according to claim 8, wherein the cylindrical segment (42, 242) has a constant radius of curvature over a circumferential angle in the circumferential direction (U) of preferably at least 30°, preferably at least 90°, and most preferably at least 175°.
10. Connecting means (1) according to one of the preceding claims, wherein the connecting means (1) is an eccentric bolt.
11. Connecting means (1) or connecting means blank (200) according to one of the preceding claims, wherein the maximum diameter of the threaded region (30) is greater than the maximum diameter of the support region (40).
12. Connecting means (1) according to one of the preceding claims, wherein a drive region (60), in particular having positive locking means, is present between the primary distal end (4) and the threaded region (30) or the support region (40), or connecting means blank (200) according to one of the preceding claims, wherein a drive region (60), in particular having positive locking means, is present between the primary distal end (204) and the threaded stamping region (230) or the support region (240).
13. A connecting means system comprising a connecting means (1) according to one of the preceding claims and a disc (100), wherein the disc (100) is in positive engagement with the groove (34) so that a torque about the longitudinal direction (L) can be transmitted between the disc (100) and the groove (34) in a positive manner.
14. A method for producing a connecting means (1), in particular according to one of the preceding claims, comprising the steps: - Providing a connecting means blank (200), in particular according to one of claims 2 to 12, wherein the connecting means blank (200) has a head region (210) and a thread stamping region (230), wherein the head region (210) has, in particular, actuating surfaces (212), wherein a groove (234) is provided in the thread stamping region (230), in particular a formed groove (234), wherein the thread stamping region (230) extends in the longitudinal direction (L), wherein the connecting means blank (200) has a primary distal end (204) which is closer to the thread stamping region (230), in particular in the longitudinal direction (L), than to the head region (210), wherein a support region (240), in particular a cylindrical support region, is provided between the primary distal end (204) and the thread stamping region (230), - Applying one or more, in particular two, thread-forming tools to the thread-embossing region (230), so that a thread (32) is introduced into the thread-embossing region (230) by the thread-forming tools, in particular by forming, - wherein, in particular simultaneously with the application of the thread-forming tool(s), a support tool is applied to the support region (240), in particular opposite to at least one thread-forming tool or the groove (234). 15.Method for producing a connecting means (1) according to claim 11, wherein the connecting means blank (200) has a drive region, in particular having form-locking means, between the primary distal end (204) and the thread-embossing region (230) or the support region (240), in particular in the longitudinal direction (L), wherein, in particular simultaneously with the application of the thread-forming tool(s), a torque, in particular about the longitudinal direction (L), is transmitted to the drive region in a form-locking manner.