Protective helmet

Abstract

The present invention relates to a protective helmet (1) comprising an outer shell (2) and a visor (3) rotatably connected to the side (4) of the outer shell (2) and projecting above the front opening (6) of the outer shell (2). The protective helmet (1) further comprises an adjustment mechanism (10) provided on the front (5) of the outer shell (2) for adjusting the visor (3) to different positions relative to the front (5) of the outer shell (2). The adjustment mechanism (10) comprises a locking device (12). According to the present invention, the adjustment mechanism (10) comprises a bridge element (16) having a first portion (18) detachably attached to the front (5) of the outer shell (2) and a second portion (20) supporting the locking device (12). The locking device (12) is suitable for engaging with a slot (14) of the visor (3) at different positions and for being fixed to the second portion (20) of the bridge element (16).

Description

Technical Field

[0001] The present invention relates to protective helmets. In particular, the present invention refers to a protective helmet suitable for use by motorcyclists, more specifically motocross riders, even if non-exclusive.

Background Art

[0002] This type of protective helmet usually has a dome-shaped structure and includes an outer shell designed to protect the user's head.

[0003] The outer shell is provided with an opening at the front. Motocross helmets usually include a visor located near the front opening and protruding from the outer shell. The visor functions to protect the user from flying debris during off-road driving and reduce the glare of sunlight.

[0004] The visor is coupled to the side of the outer shell by a mechanical fixture such as a snap, strap, or screw.

[0005] Furthermore, the visor can also be coupled to the front of the outer shell, usually the center line of the front, by additional fixtures.

[0006] In this way, it is possible to adjust the position of the visor relative to the front opening of the outer shell, for example, by raising or lowering the visor with respect to the horizontal plane.

[0007] An example of a fixing mechanism suitable for adjusting the position of the visor relative to the outer shell is disclosed in Patent Document 1 in the name of the same applicant.

[0008] Patent Document 1 discloses a visor provided with a fastening pin arranged along the center line of the inner surface of the visor. A receiving seat is arranged at the corresponding position of the outer shell.

[0009] The receiving portion is provided with a central slot designed to engage with a fastener pin. Advantageously, the central slot can be contoured so that it is divided, for example, into an upper structure, a central structure, and a lower structure, each of which can be engaged with the fastener pin. Thus, the visor can be adjusted to various positions relative to the outer shell. In fact, by changing the engagement position of the fastener pin within the central slot, it is possible to raise or lower the visor.

[0010] Such a solution is particularly appreciated because it allows for easy adjustment of the visor's position relative to the rider's eyes without affecting the bond between the visor and the outer shell.

[0011] However, there is also a need for the visor to be easily detachable from the outer shell in order to avoid the helmet undergoing undesirable and dangerous rotation upon impact with the ground, which could lead to injury to the wearer.

[0012] The solution for adjusting the position of the visor disclosed in Patent Document 1 also allows for easy detachment of the visor from the outer shell in the event of impact, and it is preferable that it be used in combination with a side fastener that includes a receiving seat with a flexible retaining portion.

[0013] In fact, when used alone, the solution for adjusting the position of the visor disclosed in Patent Document 1 can prevent the visor from detaching from the outer shell in the event of impact. [Prior art documents] [Patent Documents]

[0014] [Patent Document 1] International Publication No. 2019 / 053183 [Overview of the project] [Problems that the invention aims to solve]

[0015] The objective of the present invention is to provide a protective helmet that at least partially solves the aforementioned drawbacks.

[0016] In particular, an object of the present invention is to provide a protective helmet having a visor that can be easily adjusted to the rider's eyes without affecting the reliability of the connection between the visor and the outer shell during normal use.

[0017] Another object of the present invention is to provide a protective helmet having a visor that can be easily adjusted to the rider's eyes and, at the same time, can be easily detached from the outer shell in the event of an impact, regardless of the direction of the impact.

[0018] Furthermore, another object of the present invention is to provide a protective helmet having a visor that is easily adjustable, detachable from the outer shell, and has a simple structure.

[0019] Finally, an object of the present invention is to provide a protective helmet having a visor that, after being detached following a collision, can be easily reattached to the outer shell in the absence of structural damage. [Means for solving the problem]

[0020] These, and other, goals and objectives are achieved by the protective helmet described in claim 1.

[0021] The advantages and characteristic aspects of the present invention will become more apparent from the following description of preferred but not limiting embodiments of the protective helmet, with reference to the accompanying drawings. [Brief explanation of the drawing]

[0022] [Figure 1] A side view of the protective helmet according to the present invention is shown. [Figure 2] This diagram is similar to Figure 1 and illustrates different relative positions between the visor and the outer shell of a protective helmet. [Figure 3] It is a figure similar to FIG. 1 and shows a different relative position between the visor and the outer shell of the protective helmet. [Figure 4] It is a front view of the protective helmet of FIG. 1. [Figure 5] It is a perspective view of the protective helmet of FIG. 1. [Figure 6] It is a figure similar to FIG. 5 and shows the protective helmet with the visor removed. [Figure 6A] It is a perspective view of the fixing element used in the protective helmet of FIG. 1 for attaching the visor to the outer shell. [Figure 7] It is another perspective view of the protective helmet of FIG. 1. [Figure 8] It is a partially exploded view of the protective helmet of FIG. 7. [Figure 8A] It is an enlarged view of the detailed part of FIG. 8 identified by the letter A. [Figure 9] It is a perspective view of the visor of the protective helmet of FIG. 1. [Figure 10] It is a rear view of the visor of FIG. 9. [Figure 11] It is a perspective view of the first component of the adjustment mechanism designed to adjust the position of the visor relative to the outer shell in the protective helmet according to the present invention. [Figure 12] It is a rear view of the component of FIG. 11. [Figure 13] It is a side view of the component of FIG. 11. [Figure 14] It is a perspective view of the second component of the adjustment mechanism designed to adjust the position of the visor relative to the outer shell in the protective helmet according to the present invention. [Figure 15] It is a side view of the component of FIG. 14. [Figure 16] It is a rear view of the component of FIG. 14. [Figure 17] It is a partial cross-sectional view taken along line XVII-XVII of FIG. 4. [Figure 17A] It is an enlarged view of the detailed part of FIG. 17 identified by the letter B. [Figure 18] This diagram is similar to Figure 17, and illustrates different positions of the visor relative to the outer shell of the protective helmet. [Figure 19] This diagram is similar to Figure 17, but shows a different position of the visor relative to the outer shell of the protective helmet. [Modes for carrying out the invention]

[0023] In the following description of the protective helmet of the present invention, "inside" will refer to the portion of the protective helmet and its individual components that are relatively close to the user's head, and "outside" will refer to the portion of the protective helmet and its individual components that are relatively far away.

[0024] Similarly, the "front" portion of the protective helmet, and its individual components, that are relatively close to the user's face, would be represented as the "rear" portion of the protective helmet, and its individual components, that are relatively close to the user's occipital bone.

[0025] Referring to the enclosed drawings, an example of a protective helmet according to the present invention is shown as a whole, reference numeral 1. Protective helmet 1 is suitable for use by motorcycle riders, in particular motocross riders. However, as will become clearer from the following description, protective helmet 1 may also be advantageously used by cyclists, skiers, or in any other field where effective protection of the user's head is required.

[0026] As shown in the enclosed drawing, the protective helmet 1 comprises an outer shell 2 and a visor 3.

[0027] The visor 3 is rotatably connected to the side 4 of the outer shell 2 and protrudes above the front opening 6 of the outer shell 2. The front opening 6 is also called the "eyeport" and allows the user to see forward.

[0028] The protective helmet 1 further includes an adjustment mechanism 10 provided on the front part 5 of the outer shell 2. The adjustment mechanism 10 is suitable for adjusting the visor 3 to different positions relative to the front part 5 of the outer shell 2 (see Figures 1-3).

[0029] In particular, the adjustment mechanism 10 includes a locking device 12.

[0030] According to the present invention, for example, referring to Figures 7 and 8, the adjustment mechanism 10 comprises a bridge element 16 having a first portion 18 that is detachably attached to the front portion 5 of the outer shell 2 and a second portion 20 that supports a locking device 12. In particular, the locking device 12 is suitable for engaging with a slot 14 of the visor 3 at different positions and for being fixed, preferably detachably fixed, to the second portion 20 of the bridge element 16. In particular, the locking device 12 can be fixed to the second portion 20 of the bridge element 16 after engaging with the slot 14. Advantageously, the slot 14 faces the second portion of the bridge element 16.

[0031] As will become clear from the following description, the installation of the bridge element 16 allows for easy adjustment of the position of the visor 3 relative to the front part 5 of the outer shell 2, particularly the front opening 6. In fact, the bridge element 16 does not interfere with the engagement of the locking device 12 with the slot 14 at various positions, and at the same time ensures reliable positioning of the visor 3 relative to the front part 5 of the outer shell 2.

[0032] Furthermore, in the event of impact, the placement of the bridge element 16 ensures the quick release of the visor 3 from the outer shell 2, preventing the visor 3 from causing undesirable rotation of the user's head in the event of an accident.

[0033] The various components of the protective helmet 1 will be disclosed in detail below.

[0034] Referring to the enclosed drawings, the outer shell 2 of the protective helmet 1 is dome-shaped to fit over the wearer's head. As is well known in the art, the protective helmet 1 preferably comprises, in addition to the outer shell 2 made of a composite or thermoplastic material, a comfort liner designed to come into contact with the wearer's head when the protective helmet 1 is worn by the wearer, and an impact-absorbing liner 7 sandwiched between the outer shell 2 and the comfort liner.

[0035] The comfort liner and impact-absorbing liner 7 are located inside the outer shell 2. For clarity, the comfort liner is shown removed in the enclosed diagram.

[0036] The enclosed drawings show a protective helmet 1 equipped with a chin guard 22. However, the teachings of the present invention can also be advantageously applied to so-called "open-face helmets."

[0037] Advantageously, the visor 3 can be detachably attached to the outer shell 2 by two fixing mechanisms 24 located on the opposing side surfaces of the outer shell 2 and the visor 3.

[0038] Preferably, the visor 3 is coupled to the side 4 of the outer shell 2 by a side fixing mechanism disclosed in Patent Document 1 by the same applicant.

[0039] Advantageously, each of these fixing mechanisms 24 comprises a projection (not visible in the drawing) located at the inner end of the visor 3 and a receiving seat 26 located at a corresponding position on the side 4 of the outer shell 2 (see Figures 6 and 8).

[0040] Preferably, the receiving seat portion 26 is provided with a flexible holding portion 28.

[0041] Advantageously, the receiving seat portion 26 and the projection have complementary circular shapes. The flexible holding portion 28 may preferably be provided with a plurality of flexible arms 30.

[0042] In a preferred embodiment, the flexible retaining portion 28 is made of an elastic polymer material such as TPE (thermoplastic elastomer), TPEE (thermoplastic polyester elastomer), or TPU (thermoplastic polyurethane).

[0043] Referring to Figures 7-19, as expected, the protective helmet 1 is equipped with an adjustment mechanism 10 suitable for adjusting the visor 3 to different positions relative to the front part 5 of the outer shell 2.

[0044] As shown in the enclosed drawings, the adjustment mechanism 10 is also effective in providing additional fixing points between the visor 3 and the outer shell 2.

[0045] In fact, as can be clearly seen in Figures 7-19, the bridge element 16 can indirectly connect the inner surface of the visor 3 to the front part 5 of the outer shell 2.

[0046] As shown in the enclosed drawings, in a preferred embodiment, the second portion 20 of the bridge element 16 supports the locking device 12, and the slot 14 is located in the central mounting portion 32 of the visor 3.

[0047] The central mounting portion 32 of the visor 3 is positioned to extend from the inner surface of the visor 3 toward the front portion 5 of the outer shell 2 (see Figures 9-10). Advantageously, the central mounting portion 32 is positioned along the centerline of the visor 3.

[0048] Preferably, the central mounting portion 32 is formed by a central projection 32A, which can be defined on its side by two side edges 32B. Preferably, the slot 14 is located in the central projection 32A.

[0049] Advantageously, the space defined by the central projection 32A and the side edge 32B can be closed by a cover (not shown in the enclosed drawings) that abuts against the side edge 32B. The function of the cover is to conceal the locking device 12 and the slot 14 from view while the protective helmet 1 is in use.

[0050] As expected, the locking device 12 is designed to engage with the slot 14 at various positions and, preferably, to be fixed to the second portion 20 of the bridge element 16 in a removable manner.

[0051] The slot 14 may have an elongated shape, which preferably extends along the longitudinal axis L of the visor 3. Advantageously, the longitudinal axis L is aligned with the centerline of the visor 3.

[0052] In particular, the slot 14 may extend along the central mounting portion 32 of the visor 3. Preferably, the slot 14 extends along the central portion of the central projection 32A.

[0053] The longitudinal axis L of the visor 3 preferably extends along the front centerline of the outer shell 2 when the visor 3 is coupled to the outer shell 2 (see Figure 7). The longitudinal axis L of the visor corresponds to the longitudinal axis of the central mounting portion 32.

[0054] The locking device 12 may consist of a pin having an enlarged head 34 from which a shank 36 protrudes (see, for example, Figures 14-16).

[0055] The shank 36 is designed to engage with the slot 14 at various positions and to be removably secured inside the corresponding seat 38 provided on the second portion 20 of the bridge element 16. Advantageously, the shank 36 includes a thread suitable for securing inside the corresponding threaded portion of the seat 38.

[0056] The shank 36 preferably has a width equal to or slightly smaller than the slot 14, while the enlarged head 34 has a width greater than the slot 14. In this way, once the locking device 12 is engaged with the slot 14 and secured to the second portion 20 of the bridge element 16, the central mounting portion 32 of the visor 3 is sandwiched between the bridge element 16 and the locking device 12, particularly between the bridge element 16 and the head of the locking device 12.

[0057] In this way, the locking device 12 can be trapped in different positions within the slot 14.

[0058] As shown in the enclosed drawings, the central mounting portion 32 is designed to abut against the bridge element 16 when the locking device 12 is fixed to the bridge element 16. Preferably, the central mounting portion 32, in particular the central projection 32A, is designed to abut against the second portion 20 of the bridge element 16.

[0059] Preferably, the central mounting portion 32 has a slightly curved profile designed to match the profile of the second portion 20 of the bridge element 16.

[0060] Thus, as will be explained in detail below, during operation of the visor 3, the central mounting portion 32 is slidable on the second portion 20 of the bridge element 16.

[0061] Next, the bridge element 16 has a body 40 formed to match the outer profile of the front part 5 of the outer shell 2.

[0062] When the first part 18 is attached to the front part 5 of the outer shell 2, a portion of the main body 40 may, advantageously, come into contact with the outer shell 2, ensuring a secure connection of the visor 3 to the outer shell 2.

[0063] Preferably, the bridge element 16 is made from a rigid polymer material.

[0064] In particular, as shown in Figures 8-8A and 17-17A-18, the first portion 18 of the bridge element 16 is designed to be housed in a receiving seat 42 located at the front 5 of the outer shell 2.

[0065] Preferably, the first portion 18 consists of a projection extending to the opposite side of the bridge element 16 with respect to the side where the head 34 of the locking device 12 is designed to be located.

[0066] Advantageously, the first portion 18 may be provided with radial fins 19 (see Figures 11-13).

[0067] Next, the receiving seat portion 42 can be inserted into the recessed area 43 of the front portion 5 of the outer shell 2. Preferably, the receiving seat portion 42 is positioned at the same height as the front portion 5 of the outer shell 2.

[0068] Advantageously, as shown in Figure 6A, the receiving seat 42 may be provided with a flexible retaining portion 44. Such a flexible retaining portion 44 may comprise a plurality of flexible arms 45 designed to surround and confine the periphery of the first portion 18, the plurality of flexible arms 45 forming a retaining ring for the first portion 18.

[0069] As shown in the enclosed diagram, the first part 18 and the receiving seat 42 have complementary circular shapes. However, different shapes of both elements are possible to meet specific needs. Clearly, only the complementary shapes of the first part 18 and the receiving seat 42 are required to ensure a strong connection between the front part 5 of the outer shell 2 and the bridge element 16.

[0070] Advantageously, the receiving seat portion 42 can be made from an elastic polymer material.

[0071] Preferably, the receiving seat portion 42 can be made from a thermoplastic polymer material such as TPE, TPEE, or TPU.

[0072] Thus, the flexible holding portion 44 of the receiving seat portion 42 undergoes temporary deformation when the first portion 18 is inserted therein.

[0073] The deformation occurs when the first portion 18 is withdrawn from the receiving seat portion 42 or reinserted into the receiving seat portion 42.

[0074] Due to the specific shapes of the first portion 18 and the receiving seat portion 42, and in particular due to the installation of the flexible retaining portion 44 surrounding the first portion 18, detachment between the first portion 18 and the receiving seat portion 42 may occur in the presence of impact forces coming from any direction.

[0075] In particular, the release of the bridge element 16 from the outer shell 2 can be caused by a force acting along any direction.

[0076] At the same time, as shown in Figure 8, the insertion direction T2 of the first portion 18 of the bridge element 16 into the receiving seat 42 is preferably arranged not to be parallel to the insertion direction T1 of the locking device 12 into the seat 38 located in the second portion 20 of the bridge element 16.

[0077] Thus, any force acting on the locking device 12 does not affect the fixing between the first part 18 and the receiving seat 42.

[0078] In particular, any force acting on the locking device 12 will be advantageously transmitted to the second part 20 of the bridge element 16 without affecting the first part 18.

[0079] The various technical features of the adjustment mechanism 10 disclosed above can be used individually or in combination to meet specific needs.

[0080] Next, the operation of the adjustment mechanism 10 will be described with reference to Figures 1-3 and 8-19.

[0081] In particular, the adjustment mechanism 10 will explain how it is possible to adjust the position of the visor 3 relative to the front opening 6 of the outer shell 2.

[0082] First, with the visor 3 still detached from the outer shell 2, the bridge element 16 is fixed to the outer shell 2 by inserting the first part 18 into the receiving seat 42 and enclosing it therein. As previously described, the bridge element 16 is designed to extend along the centerline of the front part 5 of the outer shell 2.

[0083] In the second step, the visor 3 is attached to the outer shell 2 by a fixing mechanism 24 provided on the side portion 4 of the outer shell 2.

[0084] When the fixing mechanism disclosed in Patent Document 1 is used, a projection provided on the inside of the visor 3 is inserted into a corresponding receiving seat 26 provided on the side 4 of the outer shell 2.

[0085] As a result, the visor 3 is fixed to the side portion of the outer shell 2, and the central mounting portion 32 can abut against the bridge element 16. The relative positioning between the bridge element 16 and the slot 14 allows the seat portion 38 to be reached through the slot 14 provided in the central mounting portion 32.

[0086] Since the visor 3 can rotate around the side fixing mechanism 24, the user can adjust the visor 3 to their preferred position. During such adjustment, the central mounting portion 32 can slide on the second portion 20 of the bridge element 16.

[0087] Once the user has found the correct position for the visor, the visor can be locked in that position by inserting the locking device 12 into the slot 14 and retracting the shank 36 into the corresponding seat 38.

[0088] As a result, the enlarged head 34 can come into contact with the central mounting portion 32, and the locking device 12 can no longer slide within the slot 14.

[0089] If the user is not satisfied with the position selected by the user, they can lower the visor (for example, see Figure 2, the downward movement of the visor is indicated by arrow D) or raise the visor (for example, see Figure 3, the upward movement of the visor is indicated by arrow U) by releasing the locking device 12.

[0090] Advantageously, during rotation around the side fixing mechanism 24 of the visor 3, the locking device 12 can slide within the slot 14 to change its position, and at the same time, the central mounting portion 32 can slide on the second portion 20 of the bridge element 16.

[0091] Once the user has found a comfortable position for the visor 3, all that is needed is to lock the locking device 12 inside the seat 38, for example, by screwing the threaded portion of the shank 36 into the corresponding threaded portion of the seat 38.

[0092] Advantageously, the possibility of adjusting the visor does not affect the rigidity of the visor's attachment to the outer shell 2. In fact, the attachment of the visor 3 to the outer shell 2 is ensured not only by the side fixing mechanism 24 but also by the engagement of the first portion 18 of the bridge element 16 within the corresponding receiving seat 42.

[0093] Simultaneously, as previously stated, the relative positioning between the first portion 18 and the receiving seat portion 42 allows for the detachment of the first portion 18, and therefore the bridge element 16, in the event of impact. This detachment, preferably in combination with a fixing mechanism 24 located on the side of the visor 3, allows for the release of the entire visor 3.

[0094] At this point, it is clear how the predetermined objective can be achieved with the protective helmet 1 according to the present invention.

[0095] In practice, the adjustment mechanism 10 allows for easy adjustment of the visor's position relative to the rider's eyes without affecting the reliability of the connection between the visor and the outer shell, which is ensured by the bridge element 16.

[0096] Furthermore, in the event of impact, the bridge element 16 can be easily detached regardless of the direction of the impact. The relative arrangement between the first portion 18 and the receiving seat portion 42 of the bridge element 16, and the fact that the retaining portion is flexible, actually allow for easy detachment of the bridge element 16 from its outer shell.

[0097] Furthermore, the addition of the adjustment mechanism does not complicate the structure of the protective helmet, and therefore does not affect the aesthetic appearance of the protective helmet.

[0098] Finally, in the event of an impact, if there is no structural damage to the visor and adjustment mechanism, the visor can be easily reattached to the outer shell.

[0099] With respect to the embodiments of the protective helmet 1 described above, those skilled in the art may modify and / or replace the elements described with equivalent elements to satisfy specific requirements, thereby without departing from the scope of the appended claims.

Claims

1. A protective helmet (1) comprising an outer shell (2) and a visor (3) rotatably connected to the side portion (4) of the outer shell (2) and projecting above the front opening (6) of the outer shell (2), the protective helmet (1) further comprising an adjustment mechanism (10) provided on the front portion (5) of the outer shell (2) for adjusting the visor (3) to a different position relative to the front portion (5) of the outer shell (2), the adjustment mechanism (10) is a lock A protective helmet (1) comprising a locking device (12), wherein the adjustment mechanism (10) comprises a bridge element (16) having a first portion (18) and a second portion (20) that supports the locking device (12), the locking device (12) being suitable for engaging with a slot (14) of the visor (3) at different positions and for being fixed to the second portion (20) of the bridge element (16).

2. A protective helmet (1) according to claim 1, wherein the slot (14) is located on the central mounting portion (32) of the visor (3).

3. A protective helmet (1) according to claim 2, characterized in that the central mounting portion (32) is arranged to extend from the inner surface of the visor (3) toward the front portion (5) of the outer shell (2).

4. A protective helmet (1) according to any one of claims 1 to 3, wherein the slot (14) has an elongated shape that extends along the longitudinal axis (L) of the visor (3).

5. A protective helmet (1) according to any one of claims 1 to 4, wherein the locking device (12) comprises a pin having an enlarged head (34) from which a shank (36) protrudes, the shank (36) is designed to engage with the slot (14) at different positions and to be removably fixed in a corresponding seat (38) provided on the second portion (20) of the bridge element (16).

6. A protective helmet (1) according to any one of claims 1 to 5, wherein the bridge element (16) has a body (40) formed to match the outer contour of the front portion (5) of the outer shell (2).

7. A protective helmet (1) according to claim 6, characterized in that, with the first portion (18) attached to the front portion (5) of the outer shell (2), a part of the main body (40) of the bridge element (16) abuts against the outer shell (2).

8. A protective helmet (1) according to any one of claims 1 to 7, wherein the first portion (18) of the bridge element (16) is comprised of a projection extending to the opposite side of the bridge element (16) with respect to the side on which the head (34) of the locking device (12) is designed to be positioned.

9. A protective helmet (1) according to any one of claims 1 to 8, wherein the first portion (18) of the bridge element (16) is designed to be housed in a receiving seat (42) located on the front portion (5) of the outer shell (2).

10. A protective helmet (1) according to any one of claims 1 to 9, wherein the receiving seat (42) comprises a flexible retaining portion (44), and the flexible retaining portion (44) comprises a plurality of flexible arms (45) designed to surround and confine the periphery of the first portion (18).

11. A protective helmet (1) according to any one of claims 1 to 10, wherein a plurality of flexible arms (45) form a retaining ring for the first portion (18).

12. A protective helmet (1) according to any one of claims 1 to 11, wherein the first portion (18) and the receiving seat portion (42) have a complementary circular shape.

13. A protective helmet (1) according to any one of claims 1 to 12, characterized in that the receiving seat portion (42) is made of an elastic polymer material.

14. A protective helmet (1) according to any one of claims 1 to 13, characterized in that when the visor (3) is coupled to the outer shell (2), the longitudinal axis (L) of the visor (3) extends along the front centerline of the outer shell (2).

15. A protective helmet (1) according to any one of claims 1 to 14, wherein, after the locking device (12) engages with the slot (14) of the visor (3) and is fixed to the second portion (20) of the bridge element (16), the central mounting portion (32) of the visor (3) is sandwiched between the bridge element (16) and the locking device (12).

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