Fastening arrangement comprising a fork head and a hinge
The mounting arrangement with contact assemblies and axial spaces between clevis and tang components addresses galvanic corrosion, enhancing recyclability and reducing costs by isolating the carbon fiber-reinforced plastic from the metal tang.
Patent Information
- Application Number
- DE102025100724
- Authority / Receiving Office
- DE · DE
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-01-31
- Filing Date
- 2025-01-10
- Publication Date
- 2025-07-31
AI Technical Summary
Existing clevis and tang assemblies suffer from galvanic corrosion due to the proximity and contact between carbon fiber-reinforced plastic connecting portions and metal tangs, leading to increased weight, cost, and non-recyclability of carbon fibers.
A mounting arrangement with first and second contact assemblies, comprising rings driven into one another, positioned between the clevis pin and connecting portions, creating axial spaces to isolate the clevis and tang, eliminating direct contact and preventing galvanic corrosion.
This configuration effectively prevents galvanic corrosion, reduces manufacturing costs, and allows for the recycling of carbon fibers, while maintaining structural integrity.
Smart Images
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Abstract
Description
Technical field of the invention
[0001] The present invention relates generally to clevises and the assembly of a clevis fork and a pivot for securing a clevis and pivot to a clevis pin.
[0002] More specifically, the invention relates to a fastening assembly comprising a clevis pin, a clevis provided with two connecting portions, and a hinge. State of the art
[0003] As in Fig. 1, an existing fastening arrangement 1 comprises a fork of a clevis 2 provided with two connecting portions 3 and 4, and a pivot 5 fastened to a clevis pin 6 for fastening the clevis 2 and the pivot 5 about the fastening axis X.
[0004] The two connecting sections 3 and 4 are generally formed of a carbon fiber reinforced plastic material and the tang is generally formed of a metal such as aluminum.
[0005] Typically, two rings 7 and 8 are arranged radially between the fork head bolt 6 and the connecting sections 3 and 4.
[0006] The proximity and contacts resulting from the attachment of the fork head 2 and the pivot 5 lead to the occurrence of galvanic corrosion at the interface between the connecting sections 3 and 4 and the pivot 5. This phenomenon then leads to premature wear of the assembly 1.
[0007] In order to eliminate this risk of galvanic corrosion, it is known to apply a layer 9, 10 of glass fiber reinforced plastic material, generally in sheet form, to the surface of the connecting portions 3 and 4 which come into contact with the hinge 5.
[0008] However, adding such a layer 9, 10 on the connecting portions of the fork head increases the weight of the fastening assembly 1.
[0009] Due to its nature and its manufacturing steps, the layer 9, 10 also makes the production of the fastening arrangement 1 particularly costly.
[0010] Furthermore, the presence of glass fibers in the layer 9, 10 prevents the recycling of the carbon fibers of the carbon fiber-reinforced plastic material of the connecting sections 3 and 4 of the fork head 2 after disposal of the fastening assembly 1. Summary of the invention
[0011] The invention therefore has for its object to remedy these disadvantages and to propose a simple and quickly implemented design of a fastening arrangement comprising a clevis pin, a clevis and a hinge, whereby the occurrence of galvanic corrosion at the interface between the clevis and the hinge can be eliminated.
[0012] A fastening arrangement is therefore proposed which comprises a clevis pin, a clevis provided with a first and a second connecting portion, and a pivot, wherein the first and second connecting portions of the clevis and the pivot are positioned around the clevis pin, wherein the pivot is arranged on the clevis pin axially between the first and second connecting portions of the clevis.
[0013] The fastening arrangement also includes: - a first contact arrangement arranged radially between the bore of the first connecting portion of the clevis and the clevis pin, the first contact arrangement comprising a first and a second ring which are at least partially driven into each other, the second ring being positioned in the bore of the first ring, at least one of the first and second rings axially abutting a first side surface of the tang or facing the first side surface, and - a second contact arrangement arranged radially between the bore of the second connecting portion of the clevis and the clevis pin, the second contact arrangement comprising third and fourth rings which are at least partially driven into each other, the fourth ring being positioned in the bore of the third ring, at least one of the third and fourth rings axially abutting against a second side surface of the tang or facing the second side surface which is axially opposite the first side surface of the tang, and - a first axial space formed between the first connecting portion of the fork head and the first surface of the hinge, and - a second axial space formed between the second connecting portion of the fork head and the second surface of the tang.
[0014] In one embodiment, the first ring and / or the second ring may each axially abut the first side surface of the tang or face the first side surface, and the third ring and / or the fourth ring may each axially abut the second side surface of the tang or face the second side surface axially opposite the first side surface of the tang.
[0015] According to one feature, the first ring and the second ring may comprise at least one axial portion provided with an end face in contact with the first side surface of the hinge or facing the first side surface, and the third ring and the fourth ring may comprise at least one axial portion provided with an end face in contact with or facing the second side surface of the tang.
[0016] According to an alternative, only one of the first and second rings may comprise at least one axial portion provided with an end face in contact with the first side surface of the hinge or facing the first side surface, and only one of the third and fourth rings may comprise at least one axial portion provided with an end face in contact with or facing the second side surface of the tang.
[0017] According to one embodiment, the first ring comprises a radial flange extending radially in the first axial space, the axial portion extending outwards and being provided with a contact surface in contact with the first side surface of the hinge or facing the first side surface and the end face of the axial portion extending radially outwards, and the third ring comprises a radial flange extending radially in the second radial space, extending the axial portion outwardly and being provided with a contact surface in contact with the second side surface of the tang or facing the second side surface and extending the end face of the axial portion radially outwardly.
[0018] The radial flange of the first ring preferably comprises a bearing surface which is axially opposite the contact surface and which comes into axial contact with a first surface of the first connecting portion of the fork head which is arranged facing the first side surface of the hinge, and the radial flange of the third ring preferably comprises a bearing surface axially opposite the contact surface and axially contacting a first surface of the second connecting portion of the fork head arranged facing the second side surface of the tang.
[0019] The second ring preferably further comprises a radial flange extending outwardly from the axial portion and provided with an abutment surface that comes into contact with a second surface of the first connecting portion of the fork head opposite a first surface disposed facing the first side surface of the tang, and the fourth ring preferably further comprises a radial flange extending outwardly from the axial portion and provided with an abutment surface in contact with a second surface of the second connecting portion of the clevis opposite a first surface disposed opposite to the second side surface of the tang.
[0020] The circumference of the radial flange of the first ring and the circumference of the radial flange of the third ring may advantageously each comprise a chamfer.
[0021] Alternatively or in combination, the circumference of the radial flange of the second ring and the circumference of the radial flange of the fourth ring may each comprise a chamfer.
[0022] In another embodiment, the second ring may comprise a radial flange extending radially in the first axial space, extending the axial portion outwardly and being provided with a contact surface in contact with the first side surface of the hinge or facing the first side surface and extending the end face of the axial portion radially outwardly, and the fourth ring may comprise a radial flange extending radially in the second radial space, extending the axial portion outwardly and being provided with a contact surface in contact with the second side surface of the tang or facing the second side surface and extending the end face of the axial portion radially outwardly.
[0023] The radial flange of the second ring preferably comprises a bearing surface which is axially opposite the contact surface and which comes into axial contact with a first surface of the first connecting portion of the fork head which is arranged facing the first side surface of the hinge, and the radial flange of the fourth ring preferably comprises a bearing surface axially opposite the contact surface and axially contacting a first surface of the second connecting portion of the fork head arranged facing the second side surface of the hinge.
[0024] The first ring preferably further comprises a radial flange extending the axial portion outwardly and provided with an abutment surface that comes into contact with a second surface of the first connecting portion of the clevis opposite a first surface arranged facing the first side surface of the tang, and the third ring preferably comprises a radial flange extending the axial portion outwardly and provided with an abutment surface that comes into contact with a second surface of the second connecting portion of the clevis opposite a first surface arranged facing the second side surface of the tang.
[0025] The circumference of the radial flange of the second ring and the circumference of the radial flange of the fourth ring may advantageously each comprise a chamfer.
[0026] Alternatively or in combination, the circumference of the radial flange of the first ring and the circumference of the radial flange of the third ring may each comprise a chamfer.
[0027] The material of the first and second connecting portion of the fork head advantageously comprises a carbon fiber reinforced thermoplastic or thermosetting matrix.
[0028] The rod advantageously comprises a metal, such as aluminum or an aluminum alloy. Short description of the characters
[0029] Further objects, advantages and features will become apparent from the following description, which is given for illustrative purposes only, with reference to the accompanying drawings in which: [ Fig. 1] is a sectional view of a prior art fastening arrangement comprising a clevis and a pivot. [ Fig. 2] is a sectional view of a fastening assembly according to an embodiment of the invention, comprising a clevis and a pivot. [ Fig. 3] is a sectional view of a fastening assembly according to another embodiment of the invention, comprising a clevis and a pivot. [ Fig. 4] is a sectional view of a fastening assembly according to another embodiment of the invention, comprising a clevis and a pivot. Detailed description of the invention
[0030] Fig. Figure 2 shows a fastening assembly 11 according to a first embodiment of the invention. The fastening assembly comprises a fork head 12 and a pivot 13.
[0031] The fork head 12 comprises at least one forked end forming a fork head fork and comprising first and second connecting portions 14 and 15.
[0032] The first connecting portion 14 includes a first surface 14b and a second surface 14c axially opposite the first surface 14b. The thickness of the first connecting portion 14 is defined by the first and second surfaces 14b and 14c.
[0033] Similarly, the second connecting portion 15 includes a first surface 15b and a second surface 15c axially opposite the first surface 15b. The thickness of the second connecting portion 15 is defined by the first and second surfaces 15b and 15c.
[0034] The pin 13 and the first and second connecting portions 14 and 15 of the clevis 12 are positioned around a common clevis pin 16 of the assembly. The clevis pin 16 extends along an axis X.
[0035] In addition, the pin 13 on the fork head bolt 16 is arranged axially between the first and second connecting portions 14 and 15 of the fork head 12.
[0036] The tang 13 includes a first side surface 13a and a second side surface 13b axially opposite the first side surface 13a of the tang 13. The first and second side surfaces 13a and 13b define the thickness of the tang 13. The tang 13 also includes a bore 13c on which the outer surface of the clevis pin 16 rests.
[0037] The fastening arrangement 11 further comprises a first and a second contact arrangement 17 and 18, respectively.
[0038] The first contact arrangement 17 is arranged radially between the fork head bolt 16 and the bore 14a of the first connecting portion 14 of the fork head 12.
[0039] The first contact arrangement 17 comprises an outer first ring 19 and an inner second ring 20, which are driven into each other.
[0040] The first ring 19 advantageously comprises an axial portion 19a having a bore 19b, an outer surface 19c radially opposite the bore 19b, and axially opposite first and second end faces 19d and 19e which delimit the axial length of the axial portion 19a.
[0041] The second ring 20 advantageously comprises an axial portion 20a having a bore 20b, an outer surface 20c radially opposite the bore 20b, and first and second end faces 20d and 20e axially opposite and defining the axial length of the axial portion 20a.
[0042] The second ring 20 is positioned in the bore 19b of the first ring 19 such that the outer surface 20c of the second ring 20 is positioned in contact with the bore 19b of the first ring 19.
[0043] The second contact arrangement 18 is arranged radially between the fork head bolt 16 and the bore 15a of the second connecting portion 15 of the fork head 12.
[0044] The second contact arrangement 18 comprises an outer third ring 21 and an inner fourth ring 22, which are driven into each other.
[0045] The third ring 21 advantageously comprises an axial portion 21a having a bore 21b, an outer surface 21c radially opposite the bore 21b, and axially opposite first and second end faces 21d and 21e which delimit the axial length of the axial portion 21a.
[0046] The fourth ring 22 advantageously comprises an axial portion 22a having a bore 22b, an outer surface 22c radially opposite the bore 22b, and first and second end faces 22d and 22e axially opposite and defining the axial length of the axial portion 22a.
[0047] The fourth ring 22 is positioned in the bore 21b of the third ring 21 such that the outer surface 22c of the fourth ring 22 is positioned in contact with the bore 21b of the third ring 21.
[0048] The bore 20b of the axial portion 20 of the second ring 20 and the bore 22b of the axial portion 22 of the fourth ring 22 are positioned against the outer surface of the fork head 16.
[0049] The outer surface 19c of the axial portion 19 of the first ring 19 and the outer surface 21c of the axial portion 21 of the third ring 21 are positioned against the bore 14a of the first connecting portion 14 and against the bore 15a of the second connecting portion 15, respectively.
[0050] The first and second rings 19 and 20 are secured to the mounting assembly 11 by a press fit between the first connecting portion 14 of the clevis 12 and the clevis pin 16.
[0051] Similarly, the third and fourth rings 21 and 22 are secured to the assembly 11 by a press fit between the second connecting portion 15 of the clevis 12 and the clevis pin 16.
[0052] In the Fig. In the example shown in Figure 2, the first ring 19 comes to rest axially against a first side surface 13a of the hinge 13 and the third ring 21 comes to rest axially against the second side surface 13b of the hinge 13.
[0053] In addition, a first axial space 23 is formed between the first connecting portion 14 of the fork head 12 and the first surface 13a of the tang 13.
[0054] Similarly, a second axial space 24 is formed between the second connecting portion 15 of the fork head 12 and the second surface 13b of the tang 13.
[0055] Such a design of the fastening arrangement 11 makes it possible to eliminate, in a simple, rapid and relatively inexpensive manner, the risks of galvanic corrosion associated with the contacts between the fork head 12 and the hinge 13.
[0056] The contact between the first ring 19 and the pivot 13 or the contact between the second ring 20 and the pivot 13 enable the provision of the first axial space 23 and the second axial space 24 and thus keep the first and second connecting portions 14, 15 of the fork head 12 at a distance from the pivot 13.
[0057] Furthermore, the presence of the first and second axial spaces 23 and 24 between the first and second connecting portions 14, 15 of the clevis 12 and the pivot 13 eliminates the need for a smooth surface on the first surface 14b, 15b of the first and second connecting portions 14, 15. Manufacturing the fastening assembly 11 does not require any post-machining of the first surfaces 14b and 15b of the first and second connecting portions 14, 15. The first and second connecting portions 14, 15 can be used directly as cast.
[0058] The contact assembly 17 is installed by driving the first and second rings 19 and 20 between the first connecting portion 14 of the clevis 12 and the clevis pin 16, and the contact assembly 18 is installed by driving the third and fourth rings 21 and 22 into the second connecting portion 15 of the clevis 12.
[0059] This interference fit requires no additional means, such as adhesive, to secure the contact assemblies 17 and 18. Assembly is simple and quick, without requiring time for preparing the inner surface of the clevis 12 and the outer surface of the clevis pin 16, as would be the case with, for example, an adhesive attachment, nor any time for application, curing, or cleaning.
[0060] In the example shown, the first and second rings 19 and 20 axially bear against the first side surface 13a of the pivot 13, and the third and fourth rings 21 and 22 axially bear against the second side surface 13b of the pivot 13.
[0061] The first end face 19d of the axial portion 19a of the first ring 19 and the first end face 20d of the axial portion 20a of the second ring 20 are positioned in contact with the first side surface 13a of the tang 13.
[0062] In addition, the first end face 21d of the axial portion 21a of the third ring 21 and the first end face 22d of the axial portion 22a of the fourth ring 22 are positioned in contact with the second side surface 13b of the tang 13.
[0063] In the first in Fig. In the embodiment illustrated in Figure 2, the first ring 19 comprises a radial flange 25 extending radially within the first axial space 23. The radial flange 25 of the first ring 19 forms a radial portion of the first ring 19, which extends the axial portion 19a outward and the first end face 19d of the axial portion 19a radially outward.
[0064] The radial flange 25 of the first ring 19 is provided with a contact surface 19f which is in contact with the first side surface 13a of the tang 13.
[0065] In the example shown, the radial flange 25 of the first ring 19 advantageously comprises a bearing surface 19g axially opposite the contact surface 19f and axially in contact with the first surface 14b of the first connecting portion 14 of the fork head 12.
[0066] Similarly, the third ring 21 comprises a radial flange 26 extending radially in the second radial space 24.
[0067] The radial flange 26 forms a radial portion of the third ring 21, which extends the axial portion 21a outwardly and the first end face 21d of the axial portion 21a radially outwardly.
[0068] The radial flange 26 of the third ring 21 is provided with a contact surface 21f which is in contact with the second side surface 13b of the rod 13.
[0069] In the example shown, the radial flange 26 of the third ring 21 comprises a bearing surface 21g axially opposite the contact surface 21f and axially in contact with the first surface 15b of the second connecting portion 15 of the fork head 12 arranged opposite the second lateral surface 13b of the tang 13.
[0070] The second ring 20 preferably further comprises a radial flange 27 which extends the axial portion 20a outwardly and is provided with a contact surface 20f which comes into contact with the second surface 14c of the first connecting portion 14 of the fork head 12.
[0071] The second end face 20e of the second ring 20 is extended by the radial flange 27.
[0072] Similarly, the fourth ring 22 further comprises a radial flange 28 extending outwardly from the axial portion 22a and provided with an abutment surface 22f that comes into contact with a second surface 15c of the second connecting portion 15 of the fork head 12.
[0073] The second end face 22e of the fourth ring 22 is extended by the radial flange 28.
[0074] In the Fig. 2, the end face 19d of the first ring 19, the contact surface 19f of the first ring 19 and the end face 20d of the second ring 20 are arranged in contact with the first side surface 13a of the hinge 13.
[0075] In a variant of the embodiment, the end face 19d, the contact surface 19f of the first ring 19 and the end face 20d of the second ring 20 can be arranged such that they face the first side surface 13a of the hinge 13, wherein there may be a small distance between the first side surface 13a of the hinge 13 and the first and second rings 19, 20.
[0076] Similarly, in the Fig. 2, the end face 21d of the third ring 21, the contact surface 21f of the third ring 21 and the end face 22d of the fourth ring 22 are arranged in contact with the second side surface 13b of the hinge 13.
[0077] In one embodiment, the end face 21d and the contact surface 21f of the third ring 21 and the end face 22d of the fourth ring 22 may be arranged to face the second side surface 13b of the hinge 13, wherein there may be a small distance between the second side surface 13b of the hinge 13 and the third and fourth rings 21, 22.
[0078] As in Fig. 3, in which elements related to the Fig. 2 are identical, have the same reference numerals, the circumference of the radial flange 25 of the first ring 19 and the circumference of the radial flange 26 of the third ring 21 can each comprise a chamfer 33 and 34 respectively.
[0079] The circumference of the radial flange 27 of the second ring and the circumference of the radial flange 28 of the fourth ring can advantageously also each comprise a chamfer.
[0080] Fig. Figure 4 shows a second embodiment of a fastening arrangement 11 in which elements which are connected to the Fig. 2 are identical to the first embodiment shown and have the same reference numerals.
[0081] In the example shown, the second ring 20 comprises a radial flange 29 extending radially in the first axial space 23.
[0082] The radial flange 29 of the second ring 20 extends the axial portion 20a outwardly and is provided with a contact surface 20g which is in contact with the first side surface 13a of the tang 13 and extends the first end face 20d of the axial portion 20a radially outwardly.
[0083] The radial flange 29 of the second ring 20 preferably comprises a bearing surface 20h which is axially opposite the contact surface 20g and comes into axial contact with the first surface 14b of the first connecting portion 14 of the fork head 12.
[0084] Similarly, the fourth ring 22 includes a radial flange 30 extending radially in the second radial space 24.
[0085] The radial flange 30 extends the axial portion 22a radially outward and is provided with a contact surface 22g which is in contact with the second side surface 13b of the tang 13 and extends the first end face 22d of the axial portion 22a radially outward.
[0086] The radial flange 30 of the fourth ring 22 preferably comprises a bearing surface 22h which is axially opposite the contact surface 22g and which comes into axial contact with a first surface 15b of the second connecting portion 15 of the fork head 12.
[0087] The first ring 19 preferably further comprises a radial flange 31 which extends the axial portion 19a outwardly.
[0088] The radial flange 31 of the first ring 19 is advantageously provided with a contact surface 19h which comes into contact with the second surface 14c of the first connecting portion 14 of the fork head 12.
[0089] The second end face 19e of the first ring 19 is extended by the radial flange 31.
[0090] Similarly, the third ring 21 further comprises a radial flange 32 extending the axial portion 21a outwardly.
[0091] The radial flange 32 of the third ring 21 is provided with a contact surface 21h which comes into contact with a second surface 15c of the second connecting portion 15 of the fork head 12.
[0092] The second end face 21e of the third ring 21 is extended by the radial flange 32.
[0093] In the example shown, the first end face 19d of the first ring 19 is positioned so that it rests against the contact surface 20h of the second ring, so that in this second embodiment only the second ring 20 of the bearing arrangement 17 is in contact with the pivot 13.
[0094] Similarly, the first end face 21d of the third ring 21 is positioned to bear against the abutment surface 22h of the fourth ring, so that in this second embodiment only the fourth ring 22 is in contact with the tang 13.
[0095] In the Fig. 4, the end face 20d and the contact surface 20g of the second ring 20 are arranged in contact with the first side surface 13a of the hinge 13.
[0096] In a variant of the embodiment, the end face 20d and the contact surface 20g of the second ring 20 can be arranged such that they face the first side surface 13a of the hinge 13, wherein there may be a small distance between the first side surface 13a of the hinge 13 and the second ring 20.
[0097] Similarly, in the Fig. 4, the end face 22d and the contact surface 22g of the fourth ring 22 are arranged in contact with the second side surface 13b of the hinge 13.
[0098] In a variant of the embodiment, the end face 22d and the contact surface 22g of the fourth ring 22 can be arranged such that they face the second side surface 13b of the hinge 13, wherein there may be a small distance between the second side surface 13b of the hinge 13 and the fourth ring 22.
[0099] The circumference of the radial flange 29 of the second ring 20 and the circumference of the radial flange 30 of the fourth ring 22 may advantageously each comprise a chamfer.
[0100] The circumference of the radial flange 31 of the first ring 19 and the circumference of the radial flange 32 of the third ring 21 can advantageously also each comprise a chamfer.
[0101] According to one embodiment, the first, second, third and fourth rings 19, 20, 21 and 22 may form a single section formed by the axial sections 19a, 20a, 21a and 22a, respectively.
[0102] The material of the rod 13 may advantageously comprise a metal, for example aluminum or an aluminum alloy.
[0103] The material of the first and second connecting portions 14 and 15 of the fork head 12 may advantageously comprise a carbon fiber reinforced thermoplastic or thermosetting matrix.
[0104] The carbon fiber reinforcements, which improve the mechanical properties of the first and second connecting portions 14 and 15 of the fork head 12, can be recycled for later use after disposal of the fastening assembly 11, for example by pyrolysis or steam thermolysis recycling.
[0105] The material of the first and second contact arrangements 17 and 18 may advantageously comprise a plastic material, a plastic material reinforced with fibers, such as glass fibers, or a metal or alloy, such as stainless steel or titanium.
Claims
[1] Fastening arrangement (11) comprising a clevis pin (16), a clevis (12) provided with a first and second connecting portion (14, 15), and a pivot (13), wherein the pivot (13) and the first and second connecting portions (14, 15) of the clevis (12) are positioned around the clevis pin (16), wherein the pivot (13) is arranged on the clevis pin (16) axially between the first and second connecting portions (14, 15) of the clevis (12), characterized by that the fastening arrangement (11) further comprises: - a first contact arrangement (17) arranged radially between the bore (14a) of the first connecting portion (14) of the fork head (12) and the fork head bolt (16), wherein the first contact arrangement (17) comprises a first and a second ring (19, 20) which are at least partially driven into one another, wherein the second ring (20) is positioned in the bore (19b) of the first ring (19), wherein at least one of the first and second rings (19, 20) axially abuts a first side surface (13a) of the tang (13) or faces the first side surface (13a), and - a second contact arrangement (18) arranged radially between the bore (15a) of the second connecting portion (15) of the clevis (12) and the clevis pin (16), wherein the second contact arrangement (18) comprises a third and a fourth ring (21, 22) which are at least partially driven into one another, wherein the fourth ring (22) is positioned in the bore (21b) of the third ring (21), wherein at least one of the third and fourth rings (21, 22) axially abuts a second side surface (13b) of the tang (13) or faces the second side surface (13b) which is axially opposite the first side surface (13a) of the tang (13), and - a first axial space (23) formed between the first connecting portion (14) of the fork head (12) and the first surface (13a) of the hinge (13), and - a second axial space (24) formed between the second connecting portion (15) of the fork head (12) and the second surface (13b) of the tang (13). [2] Fastening arrangement according to claim 1, wherein the first ring (19) and / or the second ring (20) comprises at least one axial section (19a, 20a) provided with an end face (19d, 20d) which is in contact with the first side surface (13a) of the hinge (13) or faces the first side surface (13a), and the third ring (21) and / or the fourth ring (22) comprises at least one axial section (21a, 22a) provided with an end face (21d, 22d) which is in contact with the second side surface (13b) of the hinge (13) or faces the second side surface (13b). [3] Fastening arrangement according to claim 2, wherein the first ring (19) comprises a radial flange (25) extending radially in the first axial space (23), extending the axial portion (19a) outwards and is provided with a contact surface (19f) which is in contact with the first side surface (13a) of the pivot (13) or faces the first side surface (13a) and the end face (19d) of the axial portion (19a) extends radially outwards, and the third ring (21) comprises a radial flange (26) extending radially in the second radial space (24), extending the axial portion (21a) outwards and is provided with a contact surface (21f) which is in contact with the second side surface (13b) of the pivot (13) or faces the second side surface (13b) and the end face (21d) of the axial portion (21a) extends radially outwards. [4] Fastening arrangement according to claim 3, in which the radial flange (25) of the first ring (19) comprises a bearing surface (19g) which is axially opposite the contact surface (19f) and comes into axial contact with a first surface (14b) of the first connecting portion (14) of the fork head (12) which is arranged facing the first lateral surface (13a) of the pivot (13), and the radial flange (26) of the third ring (21) comprises a bearing surface (21g) which is axially opposite the contact surface (21f) and comes into axial contact with a first surface (15b) of the second connecting portion (15) of the fork head (12) which is arranged facing the second lateral surface (13b) of the pivot (13). [5] Fastening arrangement according to one of claims 2, 3 or 4, wherein the second ring (20) comprises a radial flange (27) extending the axial portion (20a) outwards and is provided with an abutment surface (20f) which comes into contact with a second surface (14c) of the first connecting portion (14) of the clevis (12) opposite a first surface (14b) arranged facing the first lateral surface (13a) of the pivot (13), and the fourth ring (22) comprises a radial flange (28) extending the axial portion (22a) outwards and is provided with an abutment surface (22f) which comes into contact with a second surface (15c) of the second connecting portion (15) of the clevis (12) opposite a first surface arranged facing the second lateral surface (13b) of the pivot (13). [6] Fastening arrangement according to claim 2, wherein the second ring (20) comprises a radial flange (29) extending radially in the first axial space (23), extending the axial portion (20a) outwards and is provided with a contact surface (20g) in contact with the first lateral surface (13a) of the pivot (13) or facing the first lateral surface (13a) and the end face (20d) of the axial portion (20a) extends radially outwards, and the fourth ring (22) comprises a radial flange (30) extending radially in the second radial space (24), extending the axial portion (22a) outwards and is provided with a contact surface (22g) in contact with the second lateral surface (13b) of the abutment (13) or facing the second lateral surface (13b) and the end face (22d) of the axial portion (22a) extends radially outwards. [7] Fastening arrangement according to claim 6, wherein the radial flange (29) of the second ring (20) comprises a bearing surface (20h) axially opposite the contact surface (20g) and axially contacting a first surface (14b) of the first connecting portion (14) of the fork head (12) arranged to face the first lateral surface (13a) of the pivot (13), and the radial flange (30) of the fourth ring (22) comprises a bearing surface (22h) axially opposite the contact surface (22g) and axially contacting a first surface (15b) of the second connecting portion (15) of the fork head (12) arranged to face the second lateral surface (13b) of the pivot (13). [8] Fastening arrangement according to one of claims 2, 6 or 7, wherein the first ring (19) comprises a radial flange (31) extending the axial portion (19a) outwards and is provided with an abutment surface (19h) which comes into contact with a second surface (14c) of the first connecting portion (14) of the fork head (12) opposite a first surface (14b) arranged facing the first lateral surface (13a) of the pivot (13), and the third ring (21) comprises a radial flange (32) extending the axial portion (21a) outwards and is provided with an abutment surface (21h) which comes into contact with a second surface (15c) of the second connecting portion (15) of the fork head (12) opposite a first surface arranged facing the second lateral surface (13b) of the pivot (13). [9] Fastening arrangement according to one of the preceding claims, in which the material of the first and second connecting portions (14, 15) of the fork head (12) comprises a carbon fiber reinforced thermoplastic or thermosetting matrix. [10] A fastening arrangement according to any one of the preceding claims, wherein the hinge (13) comprises a metal such as aluminum or an aluminum alloy.