pin

Abstract

The invention provides a pin. The pin (1) comprises a metal body (10) extending along a longitudinal insertion axis (Ox), the metal body having an upper face (101) and a lower face (102) opposite the upper face (101), a first end (103) and a second end (104) along the longitudinal axis (Ox), the pin (1) comprising: two lobes (13), each lobe having an inclined inner wall and an inclined outer wall, the inclined walls of each lobe (13) forming a ridge and extending along the longitudinal axis (Ox), at least one ridge having a projecting blade on its lower face, the projecting blade being obtained by cutting and folding the metal body along the longitudinal axis (Ox); a recess connecting the inner walls of each lobe (13) via a central face (14); at least one blocking member (12).

Description

Technical Field

[0001] This invention relates to pins, and more particularly to pins for holding components in tracks. More specifically, the pins are used to secure the frame of a photovoltaic module in a track within a supporting structure. Background Technology

[0002] Currently, over 90% of photovoltaic modules include an aluminum frame, which allows for a structure consisting of a glass panel on the front (exposed to sunlight) and a plastic panel on the back. The modular components provide rigidity. Another advantage of this metal frame is that it facilitates the mechanical securing of the photovoltaic modules to metal tracks, typically made of steel, in the supporting structure. The supporting structure can, for example, be designed to be fixed to the roof of a house.

[0003] When securing the metal frame of a photovoltaic module to the track of the supporting structure, it is essential to consider that the module may be subjected to significant loads once installed, such as wind forces, particularly pulling the module off the track, which could potentially cause the frame to detach from the supporting structure. Regardless of the conditions the module is subjected to, it is crucial to prevent the frame from detaching from the supporting structure and flying away. To keep the module electrically grounded, uninterrupted electrical contact must also be maintained between the module and the supporting structure.

[0004] If the support structure is associated with a mobile device, stress becomes particularly important, as the device can optimize the orientation of the photovoltaic modules based on the sun's position or any other factor. Specifically, tilting of the modules causes them to bend, which incurs significant stress in the device used to secure the modules to the track in a direction perpendicular to the pull-out direction. This can cause the securing device to slip and detach, and consequently, the modules to separate from the support structure.

[0005] Document GB264933 discloses nails, staples, spikes, hooks, curved nails, and long nails made or cut from metal sheets or strips. These components have a shank that is folded or bent longitudinally, so that after folding, bending, or bending, they have an "S", "U", "V", "C", or any other curved or angular shape in cross-section. The fasteners proposed in this document are not suitable for securing the frame of a photovoltaic module to a track in a supporting structure. Summary of the Invention

[0006] The present invention aims to solve the above problems at least in part by proposing a solution that, in particular, allows for the simple and rapid fixing of components in a track to form an assembly with high resistance to the various stresses and loads described above, while maintaining continuous electrical contact between the components and the track.

[0007] To achieve this objective, the present invention aims to provide a pin comprising a metal body extending along an insertion longitudinal axis Ox, the metal body having an upper surface and a lower surface opposite to the upper surface, a first end and a second end along the longitudinal axis Ox, the pin comprising:

[0008] Two protrusions, each having an inclined inner wall and an inclined outer wall, the inclined walls of each protrusion forming a ridge and extending along the longitudinal axis, at least one ridge having a protruding blade on its lower surface, the protruding blade being obtained by cutting and folding the metal body along the longitudinal axis;

[0009] A recess, wherein the inner walls of each protrusion are connected via a central surface;

[0010] At least one blocking member.

[0011] Other advantageous and non-limiting features of the invention, considered in isolation or in any technically feasible combination:

[0012] Each outer wall extends along the transverse axis Oz by means of wings that are generally parallel to the central surface;

[0013] At least one wing has a shoulder along the lateral axis Oz, the shoulder being located between the second end and the at least one blocking member;

[0014] The at least one blocking member is formed by a protruding rib on the upper surface, the protruding rib being obtained by cutting and folding the metal body along the transverse axis Oz;

[0015] The at least one blocking member is formed by a lug extending outward along the transverse axis Oz;

[0016] The lug folds back toward the lower surface;

[0017] The pin includes blocking members located on each wing, the blocking members being aligned on the transverse axis Oz;

[0018] The at least one blocking member is formed by a protruding rib on the inclined outer wall, the protruding rib being obtained by cutting and folding the metal body;

[0019] The pin includes at least one protruding blade located on the ridge of each protrusion;

[0020] Each pin includes two protruding blades aligned along the longitudinal axis Ox on the ridge of each protrusion.

[0021] Each pin includes exactly one protruding blade on the ridge of each protrusion, the protruding blades being offset relative to each other along the longitudinal axis Ox;

[0022] Each ridge has a platform, and each protruding blade is cut only in a portion of the width along the transverse axis Oz of the platform;

[0023] The first end has a beveled shape;

[0024] The pin includes a check groove formed on the lower surface or the upper surface;

[0025] The metal body is made of tempered steel;

[0026] Each wall has a hole facing each other along a transverse axis and positioned between the first end and the at least one protruding blade, and the at least one blocking member includes a rod capable of passing through all of the holes.

[0027] The invention also relates to the use of a pin as presented above for holding two elements in a U-shaped track extending along a transverse axis Oz, the track having a horizontal closed side, an open horizontal side for receiving the elements in a holding position, and two sidewalls extending on opposite sides of the closed side by means of a horizontal wall extending outward from the track along the longitudinal axis Ox. Each sidewall has an opening facing each other along the longitudinal axis Ox and each opening partially extending along the horizontal wall. Each element has a through-channel that, when the element is in the holding position, is positioned opposite the opening such that the pin is inserted along the longitudinal axis Ox into the opening and the through-channel into an assembled position, in which at least one protruding blade and at least one blocking member have passed through a first opening of the track, the at least one protruding blade being forced into contact with the element, and the at least one blocking member forming a stop against the track to prevent the pin from being removed.

[0028] The invention also relates to the use of a pin as presented above for holding two elements in a U-shaped track extending along a transverse axis Oz, the track having a horizontal closed side, an open horizontal side for receiving the elements in a holding position, and two sidewalls extending on opposite sides of the closed side by means of a horizontal wall extending outward from the track along the longitudinal axis. Each sidewall has an opening facing each other along the longitudinal axis Ox and each opening partially extending along the horizontal wall. Each element has a through-channel that, when the element is in the holding position, is positioned opposite the opening such that the pin is inserted along the longitudinal axis into the opening and the through-channel into an assembled position, in which at least one protruding blade and the hole have passed through a second opening of the track, the at least one protruding blade is forced into contact with the element, and at least one blocking member is inserted into the hole to prevent the pin from being removed. Attached Figure Description

[0029] Other features and advantages of the invention will become apparent from the following detailed description of the invention, provided with reference to the accompanying drawings, in which:

[0030] Figures 1a to 1d An isometric view according to the first embodiment of the present invention, a side view along a plane orthogonal to the transverse axis, a side view along a plane orthogonal to the longitudinal axis, and a view of the pin from below are shown respectively.

[0031] Figures 2a to 2d An isometric view according to a second embodiment of the present invention, a side view along a plane orthogonal to the transverse axis, a side view along a plane orthogonal to the longitudinal axis, and a view of the pin from below are shown respectively.

[0032] Figure 3 A cross-sectional view of an assembly using pins according to a first embodiment of the present invention is shown. Detailed Implementation

[0033] To simplify the following description, in different embodiments of the invention, the same reference numerals are used for the same or performing the same function of the elements.

[0034] In general, the present invention relates to a pin capable of holding two components (e.g., the metal frame of a photovoltaic module) within a U-shaped track (e.g., the track of a metal support structure). For this purpose, the pin is designed to be inserted along a longitudinal insertion axis into an opening formed in the sidewall of the track and into a through-channel in each component. This assembly allows the frame to be secured within the track of the structure while also maintaining continuous electrical contact between the photovoltaic module and the support structure.

[0035] Overall structure of the pin

[0036] Figures 1a to 1d and Figures 2a to 2d Different views of two embodiments of the pin according to the present invention are shown. An orthogonal coordinate system Oxyz is shown, which includes a longitudinal axis Ox, a vertical axis Oy, and a transverse axis Oz.

[0037] Generally, this pin 1 includes a metal body 10 extending along a longitudinal insertion axis Ox. The metal body 10 has an upper surface 101 and a lower surface 102 opposite to the upper surface 102. The metal body 10 also has a first end 103 and a second end 104 along the longitudinal axis Ox.

[0038] The metal body 10 consists of metal strips that are cut and then folded, for example by means of stamping using a subsequent machine.

[0039] The material of the metal body 10 is advantageously tempered steel, which is cold-formed, for example, before hot tempering at 800°C. The steel can then be protected from corrosion by a surface treatment step. This choice of material is particularly advantageous because it allows for easy forming before tempering and then provides high mechanical strength and elasticity after tempering.

[0040] Overall, when the upper surface is facing upwards, pin 1 has a W-shaped cross-section in a plane orthogonal to the longitudinal axis Ox.

[0041] This shape gives pin 1 flexibility while minimizing the amount of material required. In particular, this shape gives it greater flexibility than rectangular or U-shaped components.

[0042] More specifically, and especially as in Figure 1c and Figure 2c As can be seen, the pin 1 includes two protrusions 13, each having an inclined inner wall 131 and an inclined outer wall 132. The inclined walls of each protrusion form a ridge 133, which is oriented downward and extends horizontally along the longitudinal axis Ox. The two ridges lie in the same horizontal plane Oxz.

[0043] Therefore, in a plane orthogonal to the longitudinal axis Ox, the cross-section of the convex part can be V-shaped, specifically as follows: Figure 1c As shown. Then, compared to the height of the inclined walls 131 and 132, the ridge 133 has a smaller width along the transverse axis Oz.

[0044] Alternatively, and in a particularly advantageous manner, ridge 133 may be U-shaped (specifically as follows). Figure 2cAs shown in the diagram, the ridge 133 can have a platform connecting the inclined walls 131 and 132 of the protrusion 13. In this case, the width of the platform along the transverse axis Oz is similar to the height of the inclined walls 131 and 132. Compared to a V-shaped protrusion, this construction gives the pin 1 higher rigidity.

[0045] Regardless of the shape of the protrusions 13, the recesses connect the inner walls 131 of each protrusion 13 via a generally flat central surface 14. This central surface 14 extends along the longitudinal axis Ox on the horizontal plane Oxz.

[0046] This particularly advantageous shape of the metal body 10 allows the pin 1 to be well accommodated along the vertical axis Oy. Specifically, when the body 10 is made of tempered steel, the shapes of the portions 13 and 14 have the advantage of resisting forces along the transverse axis Oz while also having sufficient flexibility to allow for the compression of the pin 1.

[0047] According to a particularly advantageous configuration, each outer wall 132 can be extended along the transverse axis Oz by means of a wing 15, which is generally parallel to the central plane 14, that is, in the horizontal plane Oxz.

[0048] At least one wing 15 may advantageously have a shoulder 151 projecting along the transverse axis Oz. This shoulder is wider than the opening formed in the track, such that a stop can be formed against the opening and constitutes a stop point for the pin during pin insertion, as will be described in more detail below.

[0049] Back Figures 1a to 1d and Figures 2a to 2d As described below, at least one ridge 13 has a protruding blade 11 on its lower surface 102, obtained by cutting and folding the metal body 10 along the longitudinal axis Ox. As will be described in more detail below, this blade 11 is designed to scrape the various elements through which the pin 1 passes during insertion of the pin 1 and thus be anchored therein, so as to both prevent the pin 1 from slipping and ensure that electrical contact is maintained between the pin 1 and the various elements.

[0050] Preferably, the pin 1 may include at least one protruding blade 11 located on the ridge 133 of each protrusion 13.

[0051] The pin 1 may specifically include two protruding blades 11 aligned along the longitudinal axis Ox on the ridge 133 of each protrusion 13.

[0052] Alternatively, the pin 1 may include exactly one protruding blade 11 on each ridge 133 of the respective protrusion 13. In this case, the protruding blades may be offset relative to each other along the longitudinal axis Ox.

[0053] In the case where each ridge 133 has a platform, it is advantageous that each protruding blade 11 is cut in only a portion of the width along the transverse axis Oz of the platform.

[0054] The advantages of this construction will be described in the remainder of this specification.

[0055] Regardless of the construction of the blade 11, the pin 1 also includes at least one blocking member 12, which will be described below with reference to... Figures 1a to 1d and Figures 2a to 2d At least two embodiments are described. When the pin 1 is in the assembled position, this type of blocking member 12 allows for the formation of a stop that prevents removal.

[0056] According to the first embodiment, such as Figures 1a to 1d As shown, the blocking member 12 is formed by a protruding rib 12 on the upper surface, which is obtained by cutting and folding the metal body 10 along the transverse axis Oz perpendicular to the longitudinal axis Ox. The rib is thus open to the second end 104.

[0057] According to the second embodiment, such as Figures 2a to 2d As shown, the blocking member 12 is formed by a lug extending outward along the transverse axis Oz.

[0058] Advantageously, the lug can be slightly folded back toward the lower surface 102 to facilitate the insertion of the pin through the opening in the track.

[0059] Regardless of the embodiment of the invention, when the pin 1 includes two wings 15, the pin 1 may include blocking members located on each wing 15. In order for each rib 12 to perform its stopping function when the pin 1 is in the assembled position, the blocking members 12 are aligned along the transverse axis Oz.

[0060] Use pins

[0061] Typically, this pin 1 can be used to hold two components 301, 311 in the U-shaped track 20.

[0062] Figure 3 A cross-sectional view of an assembly using the pin 1 according to the invention is shown.

[0063] The figure shows the first element 301 and the second element 311, the track 20, and the pin 1 in their assembled positions. Similarly, an orthogonal coordinate system Oxyz is shown, where the Oxz plane is horizontal and the axis Ox corresponds to the longitudinal insertion direction of the pin 1.

[0064] The track 20 extends along the transverse axis Oz and has a closed horizontal side 21, an open horizontal side 22 for accommodating planar elements 301, 311 in a holding position, and two sidewalls 23, 24, each sidewall 23, 24 disposed in the Oyz plane. Each sidewall 23, 24 extends on the opposite side of the closed side 21 by means of horizontal walls 232, 242, which extend outward from the track 20 in the Oxz plane.

[0065] The side walls 23, 24 of track 20 have openings 231, 241, which face each other along the longitudinal axis Ox. Figure 3 It can also be clearly seen that each opening 231, 241 extends partially along the horizontal walls 232, 242.

[0066] Figure 3 The individual elements 301 and 311 shown are planar elements of frames 30 and 31, which are made of aluminum, for example, and which fix the photovoltaic module (not shown in the figure).

[0067] Each of these elements 301, 311 has through channels 302, 312 along the longitudinal axis Ox, which are positioned opposite openings 231, 241 when the elements 301, 311 are in the holding position.

[0068] The holding positions of elements 301 and 311 are defined as the positions where these elements 301 and 311 are inserted into the track 20, with their frames 30 and 31 supported on the horizontal walls 232 and 242. Their through channels 302 and 312 are then positioned opposite the openings 231 and 241 of the side walls 23 and 24 of the track 20.

[0069] The assembly position refers to the position where the pin 1 is inserted through openings 231, 241 and through channels 302, 312, and one or more blocking members 12 have passed through the first opening 231 through which the pin 1 passes. The pin 1 is generally inserted into the longitudinal insertion axis Ox in the insertion track 20 in the direction of decreasing x.

[0070] During use, the pin 1 is first inserted into the first opening 231 of the first sidewall 23 of the track 20 through its first end 103.

[0071] Conveniently, to facilitate the insertion of the pin, it is easier to insert it obliquely into the first opening. Therefore, as can be seen from all the accompanying drawings, the first end 103 of the pin 1 can have a beveled shape. This beveled shape can be a slope (e.g., Figure 1b (as shown) or cross-section (e.g.) Figure 2b(As shown). A bevel or slit is formed on the first end 103 along the directions of increasing x and y, for example, forming an angle of 30° or 45°. This shape allows the pin 1 to be inserted obliquely into the first opening 231 of the track 20, and then straightened as further insertion is made, thus guiding the pin 1 more easily. If necessary, a hammer can be used to insert the pin 1.

[0072] Advantageously, the width of pin 1 along the transverse axis Oz is slightly larger than the width of opening 231, forcing pin 1 to compress along the transverse axis Oz to allow its insertion. This compression allows the body 10 of pin 1 to bend slightly against the track 20 and apply pressure to the track 20 to ensure that pin 1 is held in the track 20 when released in the assembled position.

[0073] Continuing the insertion, the first end 103 of pin 1 then passes through the through-channel 302 of the first element 301, and then through the through-channel 312 of the second element 311.

[0074] The height of pin 1 along the vertical axis Oy is slightly greater than the height of each through-channel 302, 312, thereby forcing the protruding blade 11 to bend as it is inserted through the through-channels 302, 312. Thus, not only does the protruding blade 11 scrape against each component 301, 311 during its insertion into the through-channels 302, 312, anchoring it within the component, but the blade 11 also remains slightly bent against each component 301, 311 after pin 1 is inserted, ensuring electrical contact with the two components 301, 311 when pin 1 is in the assembled position.

[0075] When pin 1 is in the assembled position, two protruding blades 11 are advantageously present on the ridges 133 of each protrusion 13 of pin 1, such that each blade scrapes against a different component. In this way, each blade 11 bends independently, and the bending allows for optimized maintenance of the electrical contact between each component 301, 311 and pin 1, regardless of the movement of one or the other component 301, 311.

[0076] The same advantage applies when the pin 1 includes exactly one protruding blade 11 on each ridge 133 of the respective protrusion 13, wherein the blades are offset relative to each other along the longitudinal axis Ox. When the pin is in the assembled position, each blade 11 will scrape against different components. The applicant has noted that this particular construction allows for increased rigidity of the pin 1 without compromising electrical contact and maintaining the function of the pin 1.

[0077] Finally, the advantageous feature that each protruding blade 11 is cut only in a portion of the width along the transverse axis Oz of the platform can maintain both line contact between the protruding blade 11 and the components 301, 311 and surface contact with the rest of the platform when the pin 1 is in the assembled position, thereby ensuring that force is absorbed.

[0078] Regardless of the number and distribution of the blades 11, the distance between the first end 103 and the blades 11 is greater than the width of the track 20 along the longitudinal axis Ox, such that the first end 103 exits the track 20 before the blades 11 engage in the first channel 302. This facilitates the insertion of the pin 1. In practice, the desired scraping of the blades 11 against the various elements 301, 311 requires additional force to insert the pin. Therefore, it seems preferable that the pin 1 exits the track 20 before the main force required to insert the blades 11 into the through channels 302, 312 is needed, thereby ensuring the maintenance of the assembly.

[0079] The relative dimensions of the pin 1 and the through channels 302, 312 enable the flexible blade 11 to achieve both: inserting the pin 1 through the through channels 302, 312 without applying excessive force to the blade 11 during insertion, and securing the blade 11 to the blade 11, while maintaining a firm connection between the pin 1 and the elements 301, 311 and ensuring continuous electrical contact between them.

[0080] In fact, even if a gap is required between the pin 1 and one of the components 301 and 311 in order to insert the pin 1 through the through channels 302 and 312, the flexibility of the blade 11 can ensure contact and even keep the components 301 and 311 in a fixed position.

[0081] Finally, the pin 1 is inserted only when the blocking member 12 passes through the opening 231 of the first sidewall 23 of the track 20. Then the pin 1 is in the assembled position.

[0082] In the first embodiment, when the blocking member 12 is formed by cutting and folding along the transverse axis Oz, the elasticity of the body 10 of the pin 1 allows the protruding rib 12 to bend as it passes through the opening 231, and then relax as it passes through the opening 231. Therefore, the rib 12 acts as a stop against the first horizontal wall 232 of the track 20, preventing the pin 1 from being removed in the direction opposite to its insertion. The stopping force of the rib 12 against the track 20 is applied to the horizontal portion 232 of the track 20, which is tangential to the stopping force, thereby reinforcing the stop.

[0083] In the second embodiment, when the blocking member is formed by the lug, the elasticity of the body 10 of the pin 1 also allows the lug to fold slightly, especially when the lug folds slightly downward as it passes through the first opening 231. When the lug passes through the opening 231, it acts as an anti-removal stop against the side wall 23 of the track 20, thereby preventing the pin from being removed in the direction opposite to its insertion.

[0084] Even when the pin is compressed along the transverse axis Oz, the shoulder 151 allows the pin 1 to have a width greater than the width of the first opening 231 at the level of the shoulder. The advantageous presence of the shoulder 151 prevents the pin from dislodging when the pin 1 slides along the longitudinal axis Ox in the direction of decreasing x.

[0085] The shoulder 151 can also serve as a stop point for the insertion of the pin 1, indicating that the pin 1 is indeed in the assembled position. For this purpose, the shoulder 151 is located between the second end 104 and the blocking member 12. Thus, during the insertion of the pin 1, the blocking member 12 passes through the opening 231 before the shoulder 151 forms a stop against the side wall 23 of the track 20.

[0086] As a result, it prevents pin 1 from sliding in both directions along the longitudinal axis Ox when pin 1 is in the assembled position.

[0087] Preferably, to avoid any clearance along the longitudinal axis Ox when the pin 1 is in the assembled position, the distance between the blocking member 12 and the shoulder 151 is equal to or slightly greater than the thickness of the first sidewall 23.

[0088] To prevent the pin from disengaging along the longitudinal axis Ox, the pin 1 may optionally or additionally include a check groove (not shown), which may be defined by a base receiving an edge of the opening 231 and two stops restricting movement of said edge. However, the invention is by no means limited to this groove and may include any means that allow the pin to be inserted into the assembly position and prevent it from disengaging. The check groove may be provided on the lower surface 102 or the upper surface 101. Preferably, the check groove is positioned as close as possible to the second end, preferably along the longitudinal axis Ox between the blade 11 and the second end 104, to limit the number of elements that the groove needs to pass through during the insertion of the pin 1, which would increase the force required to insert the pin 1.

[0089] Components 301 and 311 will be subjected to a tensile force that tends to pull the components out of the track 20 through the open horizontal side 22, i.e., in the direction of increasing y along the vertical axis Oy. In this case, the movement of the components will be restricted to the clearance of the components by means of pin 1, which holds them in place in the assembled position. Pin 1 is held in place along the vertical axis Oy by means of abutting against the side walls 23 and 24 of the track 20. When the pull-out force is applied to components 301 and 311, the flexibility of the blade 11 (due to its relaxation) ensures electrical contact between components 301 and 311 and pin 1.

[0090] The electrical contact between pin 1 and track 20 is ensured in part by the compression of pin 1 in the opening 231 of track 20 and by its contact with the horizontal wall 232 of track 20. This contact can be continuous (e.g., Figure 3 As shown in the diagram, this is preferred, or it can be secured by the pin 1 abutting against the wall 24 when the element 30 is pulled out.

[0091] Regarding the compression of components 301 and 311, that is, a force is applied along the vertical axis Oy in the direction where y decreases, and as... Figure 3 It is clearly visible that frames 30 and 31 rest directly against track 20 in their holding positions. Therefore, due to the clearance between components 301 and 311 and pin 1, it is impossible to apply a compressive force greater than the aforementioned compression to pin 1.

[0092] Therefore, the pin 1 according to the invention enables the two elements 301, 311 to be fixed to the track 20 in a simple and robust manner, while ensuring continuous electrical contact between each element 301, 311 and the track 20, which is impossible to interrupt regardless of the strength and duration of the tension applied to the elements 301, 311.

[0093] Of course, the present invention is not limited to the described embodiments, and variations may be added without departing from the scope of the present invention.

[0094] Specifically, although only the retaining member obtained integrally by cutting and folding the metal body is described, any other retaining member that can prevent the pin from being removed when the pin is in the assembled position is conceivable.

[0095] It is particularly likely that, such as Figures 2a to 2dAs shown, each wall has a hole 16 facing each other along the transverse axis Oz. In this case, the hole 16 is located between the first end 103 and the protruding blade 11. In this case, in addition to or instead of the integral blocking member described above, the blocking member 12 may include an external blocking member comprising a rod capable of passing through all the holes 16. For example, the external blocking member may be a β-shaped pin (not shown).

[0096] In this case, the use of the pin is slightly different. The assembly position is no longer limited to when the blocking member has passed through the opening 231 of the first sidewall 23 of the track 20, but rather when the hole 16 has passed through the opening 241 of the second sidewall 24 of the track 20, and the protruding blade 11 has passed through the first opening 231. Then, the outer blocking member 12 is inserted into the hole 16 to prevent the pin 1 from being removed.

Claims

1. A pin (1) comprising a metal body (10) extending along an inserted longitudinal axis (Ox), the metal body having an upper surface (101) and a lower surface (102) opposite to the upper surface (101), a first end (103) and a second end (104) along the longitudinal axis (Ox), the pin (1) comprising: Two protrusions (13), each protrusion (13) having an inclined inner wall (131) and an inclined outer wall (132), the inclined walls (131, 132) of each protrusion (13) forming a ridge (133) and extending along the longitudinal axis (Ox), at least one ridge (133) having a protruding blade (11) on its lower surface, the protruding blade being obtained by cutting and folding the metal body along the longitudinal axis (Ox); A recessed portion, wherein the inner walls (131) of each protrusion (13) are connected via a central surface (14); At least one blocking member (12), Each outer wall (132) extends along a transverse axis (Oz) by means of a wing (15) parallel to the central surface (14), which extends along a longitudinal axis (Ox) on a horizontal plane (Oxz).

2. The pin (1) according to claim 1, wherein, At least one wing (15) has a shoulder (151) along the said transverse axis (Oz), the shoulder (151) being located between the second end (104) and the at least one blocking member (12).

3. The pin (1) according to claim 1, wherein, The at least one blocking member is formed by a protruding rib on the upper surface, which is obtained by cutting and folding the metal body (10) along the transverse axis (Oz).

4. The pin according to claim 1, wherein, The at least one blocking member is formed by a lug extending outward along the transverse axis (Oz).

5. The pin according to claim 4, wherein, The lug folds back toward the lower surface.

6. The pin (1) according to claim 1, wherein the pin includes blocking members located on each wing, the blocking members being aligned on a transverse axis (Oz).

7. The pin (1) according to claim 1, wherein the pin includes at least one protruding blade (11) located on the ridge (133) of each protrusion (13).

8. The pin (1) according to claim 7, wherein the pin includes two protruding blades (11) aligned along the longitudinal axis (Ox) on the ridge (133) of each protrusion (13).

9. The pin (1) according to claim 7, wherein the pin includes exactly one protruding blade (11) on the ridge (133) of each protrusion (13), the protruding blade (11) being offset relative to each other along the longitudinal axis (Ox).

10. The pin (1) according to any one of claims 7 to 9, wherein, Each ridge (133) has a platform, and each protruding blade (11) is cut only in a portion of the width along the transverse axis (Oz) of the platform.

11. The pin (1) according to claim 1, wherein the first end (103) has a beveled shape.

12. The pin according to claim 1, wherein the pin includes a check groove formed on the lower surface (102) or the upper surface (101).

13. The pin (1) according to claim 1, wherein, The metal body (10) is made of tempered steel.

14. The pin (1) according to claim 1, wherein, Each wall has a hole facing each other along a transverse axis and positioned between the first end (103) and the at least one protruding blade (11), and the at least one blocking member includes a rod capable of passing through all of the holes.

15. Use of a pin (1) according to any one of claims 1 to 13 for holding two elements (301, 311) in a U-shaped track (20) extending along a transverse axis (Oz), the track (20) having a horizontal closed side (21), an open horizontal side (22) for receiving the elements (301, 311) in a holding position, and two sidewalls (23, 24) extending on opposite sides of the closed side (21) by means of horizontal walls (232, 242) extending outward from the track (20) along the longitudinal axis (Ox), each sidewall (23, 24) having an opening (231, 241) facing each other along the longitudinal axis (Ox) and each opening partially along the longitudinal axis (Ox). Horizontal walls (232, 242) extend, and each element (301, 311) has through channels (302, 312) that are positioned opposite the openings (231, 241) when the elements (301, 311) are in the holding position, such that the pin (1) is inserted into the assembly position along the longitudinal axis (Ox) in the openings (231, 241) and the through channels (302, 312), in which the protruding blade (11) and the at least one blocking member (12) have passed through the first opening (231) of the track (20), the protruding blade (11) is forced into contact with the elements (301, 311), and the at least one blocking member (12) forms a stop against the track (20) to prevent the pin (1) from being removed.

16. Use of the pin (1) according to claim 14 in holding two elements (301, 311) in a U-shaped track (20) extending along a transverse axis (Oz), the track (20) having a horizontal closed side (21), an open horizontal side (22) for receiving the elements (301, 311) in a holding position, and two sidewalls (23, 24) extending on opposite sides of the closed side (21) by means of horizontal walls (232, 242) extending outward from the track (20) along the longitudinal axis (Ox), each sidewall (23, 24) having an opening (231, 241) facing each other along the longitudinal axis (Ox) and each opening... Extending partially along the horizontal walls (232, 242), each element (301, 311) has a through channel (302, 312) that is positioned opposite the opening (231, 241) when the element (301, 311) is in the holding position, such that the pin (1) is inserted along the longitudinal axis (Ox) into the assembly position in the opening (231, 241) and the through channel (302, 312), in which the protruding blade (11) and the hole have passed through the second opening (241) of the track (20), the protruding blade (11) is forced into contact with the element (301, 311), and at least one blocking member (12) is inserted into the hole to prevent the pin (1) from being removed.

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