Connecting mechanism, connecting mechanism blank, connecting mechanism system and method for producing connecting mechanism
By introducing support areas and high-strength materials into the connection mechanism, the problem of poor thread forming caused by the groove is solved, a high-strength and reliable connection mechanism design is achieved, and the stability and torque transmission of the thread are ensured.
Patent Information
- Application Number
- CN202480013641.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-02-21
- Filing Date
- 2024-01-15
- Publication Date
- 2025-09-30
AI Technical Summary
In the case of existing connection mechanisms with grooves, the threads are poorly formed and easily fail, resulting in an unstable connection.
A connection mechanism is designed, comprising a threaded area and a support area, wherein the threaded area has a groove in a radial direction, the support area is located between the main distal end and the threaded area, and a high-strength material is used and the thread is formed by thread stamping. The support area has no groove or is partially groove-free to provide additional support, prevent bending moment and bending stress, and ensure the quality of thread forming.
The thread is well formed in the presence of the groove, thereby improving the mechanical strength and reliability of the connection mechanism and ensuring the stability of torque transmission and the durability of the connection.
Smart Images
Figure CN120731325A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a connecting mechanism, a connecting mechanism blank, a connecting mechanism system and a method for producing a connecting mechanism. Background Art
[0002] Connecting mechanisms are already known from the prior art. These, like the present invention, are used to connect two components to one another, particularly irreversibly. Some of these connecting mechanisms have grooves, which are intended to serve as form-fitting locking devices for disks or other objects, particularly for adjustment purposes. However, these grooves often result in poor thread impression relative to the grooves, or in failure of the connecting mechanism during use due to increased contact pressure. Summary of the Invention
[0003] The object of the present invention is to provide a connection which, despite the presence of the groove, has a good thread formation and can be reliably produced.
[0004] This object is achieved by means of a connecting element according to claim 1, by means of a connecting element blank according to claim 2, by means of a connecting element system according to claim 13, and by means of a method for producing a connecting element according to claim 14. Further features, advantages, or configurations are apparent from the dependent claims, the description, and / or the drawings.
[0005] According to the present invention, a connecting mechanism is provided. The connecting mechanism, which can particularly be a screw or bolt, particularly comprises a head region and a threaded region, wherein the head region has an actuating surface, wherein the threaded region extends along and around a longitudinal direction, wherein the threaded region comprises or is formed by a thread, wherein the centerline of the thread lies in the longitudinal direction, wherein the threaded region comprises a groove introduced in a radial direction, wherein the groove particularly extends parallel to the longitudinal direction, wherein the radial direction is perpendicular to the longitudinal direction, wherein the circumferential direction is particularly perpendicular to the radial direction and / or the longitudinal direction, wherein the connecting mechanism comprises a main distal end, which is particularly closer to the threaded region than the head region in the longitudinal direction, wherein a support region, particularly cylindrical, is preferably provided between the main distal end and the threaded region. The connecting mechanism serves to mechanically connect different components and / or sections to one another, particularly within the scope of a force-fitting and / or reversible connection. Alternatively, the connecting mechanism can also be a form-fitting connection. Particularly advantageously, the connecting mechanism is also suitable for and / or intended for use in adjusting, in particular, a chassis. The connecting mechanism comprises a head region. The head region particularly constitutes the distal end of the connecting mechanism in the longitudinal direction. Therefore, the head region is advantageously configured so that it forms the distal end of the connection mechanism, which is opposite the main distal end in the longitudinal direction. In order to enable the transmission of torque to the head region, the head region can have an operating surface. Advantageously, the operating surface has a normal line that points in the radial direction or parallel to the radial direction. The operating surfaces can form a polygon or also a rounded polygon with respect to each other. For example, the operating surfaces can form an internal hexagon or an external hexagon with respect to each other. The radial direction is particularly preferably the direction perpendicular to the longitudinal direction. Conversely, the longitudinal direction is particularly the direction along which the length of the threaded region and / or the length of the connection mechanism is determined. In particular, the circumferential direction 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 each other, wherein the longitudinal direction can form a height coordinate, the radial direction can form a radial coordinate, and the circumferential direction can form an angular coordinate. The center line of the thread arranged in the threaded region is particularly located in the longitudinal direction, or the center line can at least partially coincide with the longitudinal direction. The center line is understood to be the line from which the root radius or flank radius of the thread is determined. In other words, the center line is the center axis around which the thread is formed. The threaded area can include a thread or be formed by a thread. A groove is formed in the threaded area, which is introduced radially into the threaded area. In other words, in a plane perpendicular to the longitudinal direction or perpendicular to the center line, the groove can be formed so that it is introduced into the thread in a radial direction from the outside to the inside. The longitudinal extension of the groove is particularly parallel to the longitudinal direction. In other words, the groove can be formed linearly and / or parallel to the longitudinal direction. The groove is particularly used to achieve a positive-locking anti-rotational effect on the eccentric element and / or the disk.In other words, when the connection serves as an adjustment mechanism, adjustment is achieved by inserting the eccentric element into the groove. In other words, the present invention can also relate to an adjustment system comprising a connection and a separate eccentric element and / or disk, wherein the eccentric element, in particular, has an outer, circumferential surface whose center of gravity or center is spaced apart from the longitudinal direction or the centerline to achieve eccentricity. The eccentric element or disk, in particular, engages at least partially, in particular by means of projections or other anti-rotational features, in the groove and / or surrounds the connection, in particular in the threaded region, where the groove is also present. The connection also has a main distal end, which is closer to the threaded region than the head region, in particular in the longitudinal direction. The main distal end is, in particular, intended to be initially introduced into a mating element to secure the connection. Thus, the main distal end is, in particular, the distal end of the connection opposite the head region, in the longitudinal direction. The main distal end is, in particular, closer to the threaded region than the head region, as viewed in the longitudinal direction. In other words, in particular, as viewed in the longitudinal direction, the main distal end is closer to the threaded region than the head region. A support area, particularly cylindrical or at least substantially cylindrical, is provided between the main distal end and the threaded area. The support area is preferably designed so that, in particular, apart from any grooves and / or threads, it is rotationally symmetrical about the longitudinal direction. This allows for a particularly simple and effective support capability for the support area. Advantageously, the support area can have threads and / or be grooveless. Therefore, in a preferred embodiment, the threads of the threaded area can extend into the support area, wherein in this embodiment, the support area is advantageously grooveless. Alternatively, the support area can be threadless, thereby particularly enhancing the support effect. In particular, the length of the support area in the longitudinal direction is at least 0.1 times the thread diameter, preferably at least 0.5 times the thread diameter, or particularly preferably at least 1.0 times the thread diameter. Alternatively, the length of the support area can preferably be at least 10%, preferably at least 15%, and particularly preferably at least 20%, of the total length of the connection in the longitudinal direction. This allows for sufficient support during the thread rolling process. The fundamental purpose of the support region is to be able to exert additional forces during the manufacturing process when stamping or forming or shaping the thread, which additional forces can be reliably supported by the support region. This makes it possible, in particular, to further increase the local contact forces during the shaping process for producing the thread, thereby achieving a particularly well-formed and dimensionally precise thread, especially also in the region opposite and / or closest to the groove. In other words, the support region can therefore be used to additionally dissipate supporting forces during manufacturing.By arranging the support area in the area between the threaded area and the main distal end, it is possible to prevent and / or reduce unfavorable bending moments or bending stresses in particular, so that negative mechanical effects on the connection mechanism or the connection mechanism blank can be reduced, especially when manufacturing high-strength components or even ultra-high-strength components.
[0006] Another aspect of the present invention can relate to a connecting mechanism blank. The connecting mechanism blank is used for use in manufacturing in order to constitute a connecting mechanism as described above and / or below. The elements already described for the connecting mechanism can also be present in the connecting mechanism blank, but wherein there is no threaded area in the connecting mechanism blank but a thread stamping area, which is particularly used to provide a thread by means of a thread forming method or to constitute a thread in the thread stamping area in order to provide a threaded area. Therefore, the transformation of the connecting mechanism blank into the connecting mechanism is particularly carried out only by the shaping of this type of thread stamping area, so that a threaded area is produced. Therefore, in other words, the thread stamping area of the connecting mechanism blank is constituted without threads and can have the same or identical features as the threaded area in other aspects. In other words, the present invention can also advantageously relate to a connection blank, in particular for producing a screw or bolt, advantageously comprising a head region and a thread region, wherein the head region in particular has an actuating surface, wherein the thread-stamping region extends along and around a longitudinal direction, wherein the thread-stamping region is designed for stamping a thread into the thread-stamping region, the centerline of the thread being located in the longitudinal direction, wherein the thread-stamping region has a groove introduced in a radial direction, the groove in particular extending parallel to the longitudinal direction, wherein the radial direction is perpendicular to the longitudinal direction, wherein the circumferential direction is in particular perpendicular to the radial direction and / or the longitudinal direction, wherein the connection blank has a main distal end which is closer to the thread-stamping region in particular in the longitudinal direction than the head region, wherein a support region, in particular cylindrical, is provided between the main distal end and the thread-stamping region. The features already described with respect to the connection, in particular with respect to the head region, the actuating surface, the longitudinal direction, the radial direction, the circumferential direction, the groove, the main distal end and the support region, can be provided in the connection blank in the same and / or respectively equivalent manner. On the contrary, in the connection structure, the features described about the threaded area can be applied to the thread stamping area in the connection mechanism blank in an equivalent manner. Of course, the reverse order also applies, so that the features, advantages and design schemes of the connection mechanism blank can also be realized in the connection structure in an equivalent manner, as long as it is not excluded due to the lack of thread in the connection mechanism blank. The thread stamping area of the connection mechanism blank can be cylindrical or at least substantially cylindrical. Basically cylindrical can be understood as that the basic geometry is constituted almost completely rotationally symmetrically around the cylinder axis. Especially when there is always the same width or the same spacing of the rod area and the thread stamping area in the cross section perpendicular to the cylinder axis / rotationally symmetrical axis, wherein the cylinder axis / rotationally symmetrical axis extends parallel to the longitudinal direction, there is almost complete rotational symmetry, but groove is not considered in this consideration. Therefore, especially cylinder or cone are considered to be almost completely rotationally symmetrical designs.
[0007] The connecting means and / or the connecting means blank are in particular designed in one piece. This allows for particularly high mechanical strength. One-piece is understood to mean, in particular, that the means / component is not produced by joining together multiple components. Alternatively, one-piece can also mean that the means / component is already produced in a forming process. Alternatively, the connecting means can also be formed from multiple components, in particular pressed together.
[0008] The connecting means and / or the connecting means blank are in particular made of a high-strength or ultra-high-strength material. The high-strength material is in particular a material with a tensile strength of at least 800 N / mm. 2 , preferably at least 1000 N / mm 2 The tensile strength of ultra-high strength materials is at least 1200N / mm. 2 , preferably at least 1400 N / mm 2 By using high-strength or ultra-high-strength materials, the connection mechanism can be classified as 8.8, 10.9, 12.9 or even 14.8 or 14.9, 15.8U, 15.9U or higher strength classes. In other words, the connection mechanism can be at or have these strength classes.
[0009] Advantageously, the support region is particularly designed to be completely groove-free. This makes it possible, in particular, to prevent sudden loading of the support region during production. Furthermore, this also and / or additionally makes it possible to reduce local surface pressures during the production process. The groove is therefore particularly designed so that its distal end in the longitudinal direction can lie within the threaded region. Alternatively, preferably, the end of the groove, viewed in the longitudinal direction facing the main distal end, can also be arranged in the threaded region. Alternatively or in addition, the support region can preferably also be designed to be groove-free only in sections. In other words, parts of the support region are provided with grooves, while other parts of the support region are groove-free. Therefore, the distal end of the groove can particularly be arranged in the support region.
[0010] Furthermore, the groove can alternatively also extend through the support region. This makes it possible to achieve particularly simple production of the groove, for example by milling.
[0011] Advantageously, the groove is produced by shaping, thereby enabling a particularly durable design which, in particular, also allows hardening of the material.
[0012] Preferably, the support region tapers in the longitudinal direction, at least in sections, toward the main distal end. In other words, the support region can have an outer diameter / outer circumference that decreases when viewed in the longitudinal direction. This can be achieved, for example, by chamfering the support region. In particular, the taper is provided such that the support region has a gradually decreasing outer diameter and / or a gradually decreasing minimum distance of the outer circumference from the central axis and / or from the longitudinal direction toward the main distal end. This makes it particularly easy to attach the element to the connecting means, in particular a disk or an eccentric element, which can also be designed as a disk.
[0013] In one advantageous embodiment, the taper of the support region in a cross-sectional plane spanning the longitudinal and radial directions follows a rounding radius and / or a straight line, wherein the center of the rounding radius advantageously overlaps the groove, particularly in the longitudinal direction. In other words, the taper can be formed by a rounding, wherein the center of the rounding overlaps the groove, particularly in the longitudinal direction. Overlapping, in this context, means that the center of the rounding radius, when projected into the longitudinal direction, lies within an area also covered by the projection of the groove into the longitudinal direction. The rounding radius is particularly provided in a cross-sectional plane spanning the longitudinal and radial directions. Advantageously, the cross-sectional plane also intersects the groove or is designed such that the cross-sectional plane is arranged along the main extension direction of the groove. Thus, in other words, the rounding radii are arranged on opposite sides of the groove in the radial direction. Providing the rounding radius in the taper or forming the taper by the rounding radius allows for particularly simple insertion of the disk and / or eccentric element into the groove. This applies in particular when the groove is not designed as a freely ending groove but has a distal end that can be spaced apart in the longitudinal direction from the main distal end of the connecting means and / or the connecting means blank. In other words, the groove therefore does not extend through the end face of the connecting means blank and / or the connecting means.
[0014] In a preferred embodiment, the threaded region or the thread-embossing region tapers at least partially in the longitudinal direction toward the main distal end. In particular, the tapered region of the threaded region transitions into the tapered region of the support region. In other words, the tapered portion of the support region extends into the threaded region and / or the tapered portion can continue continuously or discontinuously in the threaded region. This further facilitates or improves the insertion of the disk and / or the eccentric element.
[0015] In an alternative or additional preferred embodiment, the support region is designed such that the disk or eccentric element can be introduced into the groove by means of the anti-rotation structure of the disk and / or the eccentric element, wherein the disk or eccentric element can be guided along the entire length of the groove and the groove and the anti-rotation structure advantageously prevent or can prevent relative twisting of the disk and / or the eccentric element with respect to the connecting means and / or with respect to the connecting means blank, in particular about the longitudinal direction. In other words, the support region can be designed such that it allows the disk or eccentric element to be inserted or threaded onto the connecting means and simultaneously enables the anti-rotation structure of the disk or the eccentric element to engage with the groove.
[0016] The anti-rotation feature of the disk or the eccentric element can in particular be an inwardly directed projection which, in the installed state, engages or can engage with, in particular, a side surface of the groove, so that the contact between the anti-rotation feature and the groove prevents the disk or the eccentric element from twisting relative to the connecting means and / or the connecting means blank. In other words, the anti-rotation feature can in particular be a radially inwardly directed projection of the disk or the eccentric element in a central recess or central opening of the disk or the eccentric element.
[0017] In an advantageous embodiment, the support region has a cylindrical section in the circumferential direction. A cylindrical section is understood in particular to mean that at least a portion of the outer shell of the support region, viewed in the circumferential direction, follows a cylinder. This allows for particularly simple production of the support region.
[0018] Advantageously, the cylindrical section has a constant rounding radius over a circumferential angle of preferably at least 30°, preferably at least 90°, and more particularly preferably at least 175° in the circumferential direction. In other words, the cylindrical section can extend over a circumferential angle of at least 30°, preferably at least 90°, and more particularly preferably at least 175°. This allows for particularly simple production of the disk and / or eccentric element and particularly advantageous low-loss installation possibilities. Alternatively or additionally, it is preferred that the circumferential angle gradually increases towards the head. In other words, the circumferential angle with the constant rounding radius becomes larger or gradually increases towards the head.
[0019] 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 is also preferably understood to be a groove that does not have a free terminal end and / or whose ends are not bounded by an end wall with a sudden change in diameter. In other words, the groove can always have an end that does not coincide with the distal end of the area partially accommodating the groove. This allows for a structure that is particularly resilient to mechanical loads.
[0020] Advantageously, a transmission region, in particular a transmission region with a form-fit mechanism, is located between the main distal end and the threaded region or the support region, and / or this should be understood as referring to the connecting means blank. Thus, a transmission region, in particular a transmission region with a form-fit mechanism, can be located between the main distal end and the threaded region or the support region. A transmission region should be understood to mean, in particular, a transmission region having a mechanism that allows torque to be transmitted to the connecting means blank and / or the connecting means, in particular, in a form-fitting manner. Being arranged between the threaded region or the threaded region and the main distal end allows for particularly good and secure torque transmission, with only a small area being loaded by the additional drive torque. Preferably, the transmission region is arranged between the main distal end and the support region. This allows for particularly good accessibility to the transmission region. A form-fit mechanism can be understood to mean, in particular, a mechanism or structure having an operating surface for enabling form-fit torque transmission. In particular, the form-fit mechanism and / or the operating surface can form a polygon and / or a rounded polygon relative to one another. This can particularly enhance the accessibility of the transmission region. Alternatively or additionally, the transmission region can also be designed as an inner rounded polygon and / or an inner polygon. The advantage of this design is in particular the particularly compact overall length.
[0021] Suitably, the connecting means is an eccentric screw or an eccentric bolt. This allows for a particularly advantageous fastening possibility of the eccentric bolt and / or improves its thread design.
[0022] Advantageously, the maximum diameter of the threaded area is greater 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-embossing area is greater than the maximum diameter of the support area. This can further simplify and improve thread production. In particular, the support area can prevent or at least reduce obstacles to thread production.
[0023] In one 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 thread-stamping region lies in a range of 0.3 to 1.0, and preferably in a range of 0.5 to 0.8. A ratio in the range of 0.3 to 1.0 allows for particularly reliable mechanical support during the manufacture of the connection and / or during the processing of the connection blank. Conversely, a ratio in the range of 0.5 to 0.8 allows for particularly cost-effective production, particularly by forming the thread-stamping region and / or by forming the thread. This is presumably due in particular to the fact that a sufficient distance is provided in the radial direction between the support region and the threaded region.
[0024] Another aspect of the present invention may relate to a connection mechanism system, wherein the connection mechanism system includes and / or comprises at least one connection mechanism as described above and / or below. Alternatively or additionally, it is preferred that the connection mechanism system also include a disk and / or an eccentric element, which can in particular be designed as a disk. Suitably, the disk and / or eccentric element engages with the groove in a form-fitting manner, such that torque can be transmitted in a form-fitting manner between the disk and / or eccentric element and the groove in the longitudinal direction. This makes it possible to achieve form-fitting torque transmission between the disk or eccentric element and the connection mechanism in a particularly simple manner.
[0025] Another aspect of the present invention can relate to a method for manufacturing a connection mechanism, in particular a connection mechanism as described above and / or below. Suitably, the method for manufacturing a connection mechanism comprises the following steps:
[0026] - providing a connecting means blank, in particular a connecting means blank as described above and / or below, and / or in which the connecting means blank comprises a head region and a thread-stamping region, wherein the head region in particular comprises an actuating surface, wherein in the thread region in particular a groove, in particular a shaped groove, is provided, wherein the thread-stamping region advantageously extends in the longitudinal direction, wherein the connecting means blank in particular comprises a main distal end, which is in particular closer to the thread region in the longitudinal direction than the head region, wherein a supporting region, in particular without a groove, is advantageously provided between the main distal end and the thread-stamping region,
[0027] - One or more, in particular two, thread forming tools are placed in the thread stamping area so that the thread is formed in the thread stamping area, in particular by forming, wherein preferably, in particular when one or more thread tools are placed, a supporting tool and / or thread forming tool is placed in the supporting area, in particular opposite to at least one thread forming tool or / and groove.
[0028] The supporting tool can, in particular, be part and / or a component of the thread forming tool. By placing the supporting tool, in particular the supporting tool, at the supporting region of the connecting element blank, it is possible to exert a greater force in the radial direction on the connecting element blank, in particular for forming the thread. This ultimately results in a higher dimensional accuracy or clearance retention of the thread.
[0029] In an advantageous refinement of the method, the connection blank is designed so that a transmission region, in particular a transmission region with a form-fit mechanism, is provided between the main distal end and the thread-stamping area or the support area, in particular in the longitudinal direction, wherein, in particular while one or more thread-forming tools are arranged, torque is transmitted to the transmission region in a form-fitting manner, in particular around the longitudinal direction. The transmission region can be used to transmit torque to the connection blank during the thread production process of the connection blank. As a result, in particular, the thread-forming tool does not have to apply torque only around the longitudinal direction. Therefore, in particular, it is possible not only to utilize the friction between the forming tool, in particular the thread-forming tool, and the connection blank for torque transmission, but rather to provide a torque transmission possibility by providing a transmission region, as also described above and below.
[0030] Other advantages and features of the present invention are apparent from the following description with reference to the accompanying drawings. Unless explicitly excluded, individual features of the embodiments shown here can also be used in other embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 showing an end section of a distal end of the connecting mechanism;
[0032] Figure 2 An isometric view of a connecting mechanism blank is shown in FIG.
[0033] Figure 3 A further isometric view of a connecting mechanism blank is shown in FIG. Figure 2 match;
[0034] Figure 4 The middle section shows the connection mechanism system; and
[0035] Figure 5 An isometric view of the connection mechanism is shown in FIG. DETAILED DESCRIPTION
[0036] exist Figure 1 The main distal end 4 is shown along the longitudinal direction L of the connecting means 1. The radial direction R is perpendicular to the longitudinal direction L. The circumferential direction U surrounds the longitudinal direction L and is therefore also perpendicular to the radial direction R. The connecting means 1 is bounded in the longitudinal direction L by the main distal end 4, which also delimits a transmission region 60. The transmission region 60 is polygonal in nature so as to achieve a form-fitting torque transmission around the longitudinal direction L. A support region 40 is located between the transmission region 60 and the threaded region 30 having the thread 32. The support region 40 is essentially cylindrical in design. A groove 34 extends from the threaded region 32 into the support region 40, with the groove 34 having a free end in the support region 40.
[0037] Figure 22. The connector blank 200 is shown in FIG. The connector blank 200 also has a groove 234, which is configured as a closed groove 234. In the embodiment shown, the connector blank 200 is bounded in one direction along the longitudinal direction L by a head region 210, which has an operating surface 212. However, in another direction along the longitudinal direction L, the connector blank 200 is bounded by a main distal end 204. The groove 234 is introduced into the thread stamping area 230 and extends until the support area 240 of the connector blank 200. The support area 240 has a cylindrical section 242, which is directly formed next to the groove 234 and the main distal end 204.
[0038] Figure 3 The connecting mechanism blank 200 is shown in FIG. Figure 2 The embodiment shown in FIG. 1 makes the connection mechanism blank 200 Figure 3 The invisible side can in principle correspond to Figure 2 The supporting area 240 of the connecting mechanism blank 200 is formed to taper in the longitudinal direction L. The tapered area is particularly formed opposite the cylindrical section 242, which can also be combined with the cylindrical section 242 as an example. Figure 2 and Figure 3 Indicated.
[0039] Figure 4 , a connection mechanism system is shown, comprising a connection mechanism 1 and a disk 100, which is designed as an eccentric element. The disk 100 has an anti-rotation structure 110, which can form a positive engagement with the groove 34, so that a torque transmission can be provided between the disk 100 and the groove 34 in a positive manner.
[0040] Figure 5 , a connecting means 1 is shown, which has a head region 10 with an actuating surface 12 . Between the head region 10 and the main distal end 4 , there is a threaded region 30 , which is formed by a thread 32 .
[0041] Reference Signs List
[0042] 1. Connecting mechanism
[0043] 4 Master Remote
[0044] 10 Head area
[0045] 12 working surface
[0046] 30 thread area
[0047] 32 thread
[0048] 34 slots
[0049] 42 cylindrical segments
[0050] 40 support area
[0051] 60 Transmission Area
[0052] 100 plates
[0053] 110 Anti-rotation structure
[0054] 200 Connecting mechanism blank
[0055] 204 Main distal end of the connecting mechanism blank 200
[0056] 210 Head region of the connecting mechanism blank 200
[0057] 212 Operation surface of the head area 210
[0058] 230 thread stamping area
[0059] 234 slot of connecting mechanism blank 200
[0060] 240 Support area of the connecting mechanism blank 200
[0061] 242 cylindrical sections
[0062] L Longitudinal direction
[0063] R radial direction
[0064] U Circumferential direction
Claims
1. A connecting mechanism (1), in particular a screw or a bolt, The connecting mechanism comprises a head region (10) and a threaded region (30), The head region (10) has an operating surface (12), wherein the threaded region (30) extends along and around a longitudinal direction (L), wherein the threaded region (30) has a thread (32) with a centerline of the thread located in the longitudinal direction (L), wherein the threaded region (30) has a groove (34) introduced in the radial direction (R), the groove extending in particular parallel to the longitudinal direction (L), wherein the radial direction (R) is perpendicular to the longitudinal direction (L), wherein the 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 main distal end (4) which is closer to the threaded region (30) than the head region (10), in particular in the longitudinal direction (L), Preferably, a particularly cylindrical supporting region (40) is provided between the main distal end (4) and the threaded region (30).
2. A connecting mechanism blank (200), comprising a head region (210) and a thread stamping region (230), The head region (210) in particular has an operating surface (212), wherein the thread stamping area (230) extends along and around the longitudinal direction (L), The thread stamping region (230) is designed such that a thread (32) is stamped into the thread stamping region, with a center line of the thread located in the longitudinal direction (L). wherein the thread-embossing region (230) has grooves (234) introduced in the radial direction (R), the grooves extending in particular parallel to the longitudinal direction (L), wherein the radial direction (R) is perpendicular to the longitudinal direction (L), wherein the circumferential direction (U) is in particular perpendicular to the radial direction (R) and / or the longitudinal direction (L), wherein the connecting mechanism blank (200) has a main distal end (204) which is closer to the thread stamping region (230) than to the head region (210), in particular in the longitudinal direction (L), A particularly cylindrical supporting region (240) is provided between the main distal end (204) and the thread-embossing region (230).
3. A connecting mechanism (1) or a connecting mechanism blank (200), The supporting region (40, 240) is designed without grooves.
4. The connecting mechanism (1) or the connecting mechanism blank (200) according to any one of the preceding claims, The support region (40, 240) tapers at least partially along the longitudinal direction (L) towards the main distal end (4, 204).
5. The connecting mechanism (1) or the connecting mechanism blank (200) according to claim 4, wherein the tapering of the support region (40, 240) follows a rounding radius in a section plane spanning the longitudinal direction (L) and the radial direction (R), Advantageously, the center (M) of the rounding radius overlaps with the groove (34, 234), in particular in the longitudinal direction (L).
6. Connecting mechanism (1) according to any of the preceding claims, in particular according to claim 4 or 5, wherein the threaded region (30) tapers at least partially in the longitudinal direction (L) towards the main distal end (4), and / or According to any of the above claims, in particular the connecting mechanism blank (200) according to claim 4 or 5, The thread stamping region (230) is tapered at least partially along the longitudinal direction (L) toward the main distal end (4).
7. The connecting mechanism (1) or the connecting mechanism blank (200) according to any of the preceding claims, in particular according to claim 4, 5 or 6, The supporting area (40, 240) is designed such that a disk (100) can be introduced into the groove (34), the disk having a rotationally fixed structure (110) of the disk (100), The disc (100) can be guided along the entire length of the groove (34, 234).
8. The connecting mechanism (1) or the connecting mechanism blank (200) according to any of the preceding claims, in particular according to claim 4, 5, 6 or 7, The supporting region (40, 240) has a cylindrical section (42, 242) in the circumferential direction (U).
9. The connecting mechanism (1) or the connecting mechanism blank (200) according to claim 8, The cylindrical section (42, 242) has a constant rounding radius over a circumferential angle of preferably at least 30°, preferably at least 90°, and more particularly preferably at least 175° in the circumferential direction (U).
10. The connecting mechanism (1) according to any one of the preceding claims, The connecting mechanism (1) is an eccentric bolt.
11. The connecting mechanism (1) or the connecting mechanism blank (200) according to any one of the preceding claims, The maximum diameter of the threaded area (30) is greater than the maximum diameter of the support area (40).
12. The connecting mechanism (1) according to any one of the preceding claims, wherein a transmission region (60), in particular with a form-fitting mechanism, is present between the main distal end (4) and the threaded region (30) or the support region (40), or The connecting mechanism blank (200) according to any one of the above claims, A transmission region (60), in particular having a form-fitting mechanism, is present between the main distal end (204) and the thread-embossing region (230) or the supporting region (240).
13. A connection mechanism system comprising a connection mechanism (1) according to any one of the preceding claims and a disc (100), The disc (100) is brought into positive engagement with the groove (34) such that a torque can be transmitted between the disc (100) and the groove (34) in a positively locking manner about the longitudinal direction (L).
14. A method for producing a connecting mechanism (1), in particular according to any one of the preceding claims, comprising the following steps: - providing a connecting mechanism blank (200), in particular according to any one of claims 2 to 12, wherein the connecting mechanism blank (200) has a head region (210) and a thread-stamping region (230), The head region (210) in particular has an operating surface (212), A groove (234), in particular a shaped groove (234), is provided in the thread-embossing region (230). wherein the thread stamping area (230) extends along a longitudinal direction (L), wherein the connecting mechanism blank (200) has a main distal end (204) which is closer to the thread stamping region (230) than to the head region (210), in particular in the longitudinal direction (L), wherein a particularly cylindrical support region (240) is provided between the main distal end (204) and the thread-embossing region (230), - placing one or more, in particular two, thread forming tools at the thread-imprinting region (230) so that a thread (32) is introduced into the thread-imprinting region (230) by the thread forming tools, in particular by forming, wherein, in particular simultaneously with the placement of the one or more thread forming tools, a supporting tool is placed on the supporting region (240), in particular opposite at least one thread forming tool or the groove (234).
15. A method for producing a connecting mechanism (1) according to claim 11, The connecting mechanism blank (200) has a transmission region between the main distal end (204) and the thread stamping region (230) or the support region (240), in particular in the longitudinal direction (L), wherein the transmission region has a form-fitting mechanism, in, In particular, while the thread forming tool or tools are being positioned, a torque is positively transmitted to the transmission region, in particular about the longitudinal direction (L).