Protective helmet equipped with a hair accessory for the user.

Abstract

The invention relates to a protective helmet comprising a rigid protective shell (10) defining an internal cavity (100) whose geometry is adapted to the user's head, and wherein: - said helmet is equipped with a headgear accessory for the user, said accessory comprising a set of interchangeable pads (2) installed with spacing within the internal cavity (100) so as to come into contact with the user's head during use, and in that: - each pad has a base and an apex, said base being wider than said apex, - said apex has one of the following shapes: pointed, acute, rounded, convex, concave, annular, or flat, with a surface area of ​​less than 1.5 cm², preferably less than 0.2 cm². Figure 1

Description

Title of the invention: Protective helmet equipped with an accessory for securing the user's hairstyle Technical field.

[0001] The present invention relates to a protective helmet equipped with an accessory for holding the user's hairstyle. It also relates to a method for holding the hairstyle of a user wearing a protective helmet.

[0002] It relates to the technical field of protective helmets intended to be worn during activities such as driving vehicles (motorcycles, scooters, bicycles, skateboards, etc.), horseback riding, or on construction sites. It relates more specifically to accessories designed to improve user comfort during prolonged wear of a protective helmet, in particular accessories that help to preserve and maintain the user's hairstyle. State of the art.

[0003] In the field of protective helmets, accessories are primarily focused on safety and ergonomics, neglecting aesthetics and maintaining the user's hairstyle. However, during prolonged helmet use, the user's hairstyle can become crushed, disheveled, or deformed, causing discomfort and potentially negatively impacting the user's image, especially for those with elaborate hairstyles. Furthermore, when the scalp is confined within the helmet cavity, it generates more heat. The resulting perspiration generally alters the shape of the user's hairstyle.

[0004] Some prior art solutions propose integrating softer materials or soft fabric linings inside the helmet to minimize damage to the hairstyle and / or overheating of the scalp. However, these approaches do not offer satisfactory results, as they do not solve the problem of the hairstyle being crushed and deformed under the pressure of the helmet during daily or prolonged use.

[0005] The invention aims to overcome the aforementioned drawbacks. In particular, the invention aims to achieve all or part of the following objectives: to preserve the integrity of the user's hairstyle while maintaining a high level of helmet protection; to provide an accessory for holding the user's hairstyle that is of simple design and easy to install in the helmet; to provide a hairstyle holder that easily adapts to different hair types. Presentation of the invention.

[0006] The solution proposed by the invention is a protective helmet comprising a rigid protective shell defining an internal cavity whose geometry is adapted to the head of a user.

[0007] This helmet is equipped with a headgear accessory for the user, said accessory comprising a set of interchangeable pads installed with spacing within the internal cavity so as to make contact with the user's head during use. Each pad has a base and a peak, said base being wider than said peak. The peak has one of the following shapes: pointed, acute, rounded, convex, concave, annular, or flat, with a surface area of ​​less than 1.5 cm², preferably less than 0.2 cm².

[0008] The specific shape of the pad tips creates highly localized pressure points, lines, or surfaces that prevent overall flattening of the hair, thus preserving the integrity of the hairstyle. These pads also ensure the helmet stays securely in place. This limited contact prevents the helmet from compressing uniformly across the entire scalp. By concentrating pressure on small, precise points or areas of the scalp, general deformation of the hairstyle is avoided, while maintaining comfortable contact with the user's head. Limiting the points or areas of contact with the scalp also results in less heat and perspiration, which contributes to maintaining the hairstyle.

[0009] In addition, the spaced shape and arrangement of the pads allow for improved air circulation inside the helmet, which reduces scalp heating and perspiration, contributing to the preservation of the hairstyle in hot conditions or during prolonged helmet use.

[0010] Also, the interchangeability of the pads offers users flexibility to adapt the conformation and / or arrangement of said pads to the shape of their head and / or their hairstyle.

[0011] In addition, the interchangeability of the pads ensures their easy installation and / or replacement inside the internal cavity of the helmet, thus offering modularity to the user according to their hairstyle.

[0012] Other advantageous features of the invention are listed below. Each of these features may be considered alone or in combination with the notable features defined above. Each of these features contributes, where appropriate, to the resolution of specific technical problems defined further in the description and in which the other features defined above do not necessarily participate. The following features may thus be the subject, where appropriate, of one or more divisional patent applications:

[0013] According to one embodiment, the pads have a shape belonging to the following family: spherical cap, paraboloidal cap, spherical segment, segment of paraboloid of revolution, cone, cone truncated at its apex, pyramid, pyramid truncated at its apex.

[0014] According to one embodiment, all or part of the pads have a hole at their apex, which hole extends along the axis of symmetry of said pad.

[0015] According to one embodiment, the hole has a diameter corresponding to that of the top of the bearing.

[0016] According to one embodiment, the hole is through and opens at the base and the top of the pad.

[0017] According to one embodiment, the pads are made of a flexible material, preferably foam.

[0018] According to one embodiment, the pads have different shapes and / or sizes and / or hardnesses depending on their position in the internal cavity.

[0019] According to one embodiment, the bearings have a disc-shaped base with a diameter between 15 mm and 35 mm and a height between 3 mm and 20 mm.

[0020] According to one embodiment, the pads are spaced from each other by a distance of between 1 cm and 10 cm.

[0021] According to one embodiment, each pad is covered with a removable fabric on its outer surface and / or covered with flocking, preferably flocking based on nylon fibers.

[0022] According to one embodiment, the pads are removably fixed in the internal cavity.

[0023] According to one embodiment: - a lining is installed in the internal cavity, each pad being fixed to said lining by means of a removable hook-and-loop or hook-and-hair type fastener installed at the base of said pads and / or; - the base of each pad incorporates a male, or female, fastening member configured to engage in a removable manner in a female, or male, fastening member installed in the internal cavity and / or; - the base of each pad incorporates a magnet configured to cooperate with a complementary magnet installed in the internal cavity.

[0024] According to one embodiment, a flexible or multi-branched support is removably installed inside the internal cavity, the pads being removably fixed to said branches.

[0025] Another aspect of the invention relates to a ready-to-assemble assembly (or kit) comprising: - a protective helmet having a rigid protective shell (defining an internal cavity whose geometry is adapted to the head of a user; - an accessory for holding the user's hairstyle, said accessory comprising a set of interchangeable pads installed with spacing in the internal cavity so as to, in use, come into contact with the user's head, said pads each having a base and a top, said base being wider than said top, said top having one of the following shapes: pointed, acute, rounded, convex, concave, annular, flat with a surface area of ​​less than 1.5 cm2, preferably less than 0.2 cm2.

[0026] Yet another aspect of the invention relates to a method for holding the hairstyle of a user wearing a protective helmet, said helmet comprising a rigid protective shell defining an internal cavity whose geometry is adapted to the head of a user, said method comprising the steps of: - shaping a set of pads each having a base and a top, said base being wider than said top, said top having one of the following shapes: pointed, acute, rounded, convex, concave, annular, flat with a surface area of ​​less than 1.5 cm2, preferably less than 0.2 cm2; - installing in the internal cavity of said helmet, the set of pads, which pads are installed interchangeably and with spacing in said internal cavity so as, in use, to come into contact with the head of the user. Brief description of the figures.

[0027] Other advantages and features of the invention will become more apparent from the description of a preferred embodiment which will follow, with reference to the attached drawings, made by way of indicative and non-limiting examples and on which: [Fig.1] is a cross-sectional view along the sagittal plane of a protective helmet equipped with a set of pads according to the invention. [Fig.2] is a front cross-sectional view of the helmet from [Fig.1]. [Fig.3] is a cross-sectional view of the helmet from [Fig.1]. [Fig.4], [Fig.5], [Fig.6], [Fig.7], [Fig.8], [Fig.9], [Fig.10], [Fig.11], [Fig.12], [Fig.13], [Fig.14], [Fig.15], [Fig.16], illustrate different embodiments of a bearing according to the invention. [Fig. 17] is a schematic cross-sectional view of a bearing according to one embodiment of the invention. [Fig. 18] illustrates a method of fixing a bearing according to an embodiment of the invention. [Fig. 19] shows a first example of a support on which bearings can be fixed according to an embodiment of the invention. [Fig.20] shows the support of [Fig. 19] installed in a protective helmet and on which pads are attached. [Fig.21] shows a second example of a support on which bearings can be fixed according to an embodiment of the invention. [Fig.22] shows the support of [Fig.21] installed in a protective helmet and onto which pads are attached. Description of the implementation methods.

[0028] To possibly complete their current definition, the following clarifications are made to certain terms used in the claims and the description: - As used here, unless otherwise indicated, the possible use of the ordinal adjectives "first", "second", etc., to describe an object simply indicates that different occurrences of similar objects are mentioned and does not imply that the objects thus described must be in a given sequence, whether in time, space, ranking, or any other way. - Similarly, the use of adjectives "right / left", "front / back", "top / bottom", "lower / higher", etc., allows us to simply describe the position of an object in the configuration of the attached figures, but does not necessarily imply that in practice, similar objects are in the same position. - "X and / or Y" means: X alone or Y alone or X+Y. - In general, it is appreciated that on the various attached drawings, the objects can be drawn arbitrarily to facilitate their reading.

[0029] The user's hair styling accessory according to the invention is intended to be fitted to a protective helmet. This helmet is of the conventional type available commercially. In the embodiment illustrated in Figures 1 to 3, the protective helmet 1 comprises a rigid shell 10 made of impact-resistant material, such as a thermoplastic or a composite resin, ensuring optimal protection of the user's head against impacts. The shell 10 defines an internal cavity 100 whose geometry is adapted to the user's head. The cavity 100 is configured to surround and cover the head, encompassing in particular the frontal, temporal, parietal, and occipital areas.The internal cavity 100 is preferably fitted with a standard liner 101 of the internal padding type including in particular a foam or fabric lining and / or one or more shock absorbers for example in EPS (expanded polystyrene), aimed at improving user comfort and shock absorption.

[0030] The protective helmet 1 can be designed for numerous activities and / or fields. For example, it could be a helmet for the protection of motorcyclists (e.g., motorcycles, scooters), with or without an integrated visor and with or without an integrated ventilation system. It could also be a protective helmet for practicing sports such as cycling, skateboarding, horseback riding, or others. In this case, the helmet 1 could adopt a lighter and more ventilated structure. It could also be a protective helmet used in the construction industry (e.g., construction) and meeting industrial safety standards.

[0031] According to the invention, the helmet is equipped with a headgear accessory. In Figures 1 to 3, this accessory comprises a set of interchangeable pads 2 installed with spacing within the internal cavity 100 so as to come into contact with the user's head during use. The pads 2 are advantageously offered as a kit (ready-to-assemble assembly) with the helmet 1.

[0032] To limit contact between the pads and the user's scalp and preserve their hairstyle, the pads 2 each have a base and an apex, the base being wider than the apex. The apex has one of the following shapes: pointed, acute, rounded, convex, concave, annular, or flat with a surface area of ​​less than 1.5 cm², preferably less than 0.2 cm².

[0033] According to a preferred embodiment, the bearings 2 have the shape of a spherical portion and / or a portion of a paraboloid of revolution (i.e., a surface obtained by rotating a parabola around its axis of symmetry), delimited by one or two planes parallel and perpendicular to the axis of symmetry S of said bearing. With regard to the spherical portion, the bearings 2 may have the shape of a spherical cap illustrated by [Fig. 4] (intersection of a sphere with a plane) or the shape of a spherical segment illustrated by [Fig. 5] (intersection of a sphere with a pair of parallel planes or a spherical cap truncated at its apex). Regarding the portion of the paraboloid of revolution, the bearings 2 can have a paraboloidal cap shape illustrated by [Fig.8] (intersection of a paraboloid of revolution with a plane perpendicular to the axis of symmetry S) or a paraboloid of revolution segment shape illustrated by [Fig.9] (intersection of a paraboloid of revolution with a pair of planes parallel and perpendicular to the axis of symmetry S or paraboloidal cap truncated at its vertex). .

[0034] With a spherical or paraboloidal cap shape (Figures 4 and 8), the apexes of the pads 2 are rounded or convex. This shape allows for limited and localized contact points with the scalp (i.e., the apex of the cap forming a point contact), which prevents general flattening of the hair in order to preserve the integrity of the hairstyle. In a preferred embodiment, the pads 2 have a disc-shaped base with a diameter D between 15 mm and 35 mm and a height H between 3 mm and 20 mm. These dimensions allow for precise adjustment of the contact points with the user's scalp, depending on the morphology of their head and / or hair morphology and / or hairstyle. The pads 2 also help to keep the scalp at a distance from the inner surface of the cavity 100 in a way that to promote air circulation inside the helmet 1 and reduce scalp heating and perspiration.

[0035] A spherical cap shape ([Fig. 4]) allows for gentle contact with the user's head and offers a comfortable feel. However, due to its constant curvature, spherical cap-shaped pads 2 can sometimes cause more overall flattening of the hairstyle, particularly for voluminous or updos, as the pressure is exerted by wider sides. Conversely, a paraboloidal cap shape ([Fig. 8]) has a rounded or convex apex, but one that is more pointed or acute, and narrower sides, thus further limiting localized flattening of the hairstyle. This shape can be particularly beneficial for complex or voluminous hairstyles. However, paraboloidal cap-shaped pads 2, when relatively rigid, can generate more pronounced localized pressure points, potentially causing more significant deformation in these specific areas.

[0036] Although particularly satisfactory in terms of maintaining the hairstyle, it appeared during tests that the spherical or paraboloidal cap shape shown in Figures 4 and 8 could occasionally cause pressure at the point of contact between the apex of the pads 2 and the head, which could be a source of discomfort for some users. This problem was solved by pads 2 in the shape of a spherical segment, as illustrated in [Fig. 5], or in the shape of a paraboloid of revolution segment, as illustrated in [Fig. 9]. The base and apex of the pads 2 are two parallel discs, the diameter D of said base being greater than the diameter d of said apex. In one embodiment, the diameter D of the base is between 15 mm and 35 mm, the diameter d of the apex is between 5 mm and 10 mm, and the height H is between 10 mm and 20 mm.In any case, the top is flat and its surface area is less than 1.5 cm², preferably less than 0.2 cm². The contact between the top of the pads 2 and the user's head is now a surface contact, which significantly reduces the feeling of discomfort that some users may experience with the pads in Figures 4 and 7. The hair-flattening surface area is greater than that induced by the pads in Figures 4 and 8, but overall hair flattening is avoided due to the reduced surface area of ​​the top, so the integrity of the hairstyle is properly preserved.

[0037] In [Fig. 6], respectively [Fig. 10], the bearing 2 still has a general shape of a spherical segment, respectively of a paraboloid of revolution segment, but it has a hole 20 at its apex, extending along the axis of symmetry S of the bearing 2. This hole 20 may be open at both the base and the apex, or only at the apex. The apex of the bearing 2 is thus annular in shape and has a recess allowing reduce the contact area with the user's head (linear rather than surface contact) and therefore the hair flattening area, while ensuring increased comfort.

[0038] According to a preferred embodiment that minimizes the flattening surface while maintaining optimal comfort, the diameter of the hole 20 corresponds to that of the apex. For the purposes of this invention, "corresponds" means that 0.9xd < d20 < d, where d is the diameter of the apex and d20 is the diameter of the hole 20.

[0039] When the hole 20 is through-hole, that is, when it opens at the base and the top of the pad 2, an additional shock-absorbing function of said pad has been observed in the event of an impact. Indeed, when a compressive force is applied to the pad 2 during an impact on the helmet 1, the hole 20 allows said pad to compress more easily and in a controlled manner, improving the dissipation of mechanical energy and reducing the forces transmitted to the user's head during an impact. Furthermore, the hole 20 allows the pad 2 to return to its initial shape more quickly after deformation, thus improving the user's responsiveness and comfort.

[0040] In Figures 7 and 11, the pads 2 have a general spherical or paraboloidal cap shape, but the apexes are concave. Such an apex thus presents a recess that reduces the contact area with the user's head (linear rather than surface contact) and consequently the area where hair is flattened, while ensuring increased comfort.

[0041] In figures 12 to 16, the bearing 2 has a cone shape (with a circular or oval base) or a pyramid shape (with a polygonal base: triangular, square, rectangular, hexagonal, ...).

[0042] The apex can be pointed or acute as illustrated in [Fig. 12]. Such apexes reduce contact with the scalp to a single point, thus minimizing the risk of flattening the hairstyle and promoting good ventilation. However, the pressure can be highly localized at this point of contact and cause some discomfort to the user. To remedy this, the apex can be rounded or convex ([Fig. 13]), flat ([Fig. 14]) with a surface area of ​​less than 1.5 cm², preferably less than 0.2 cm², concave ([Fig. 15]), or have a hole 20 at its truncated apex ([Fig. 16]), which hole is similar to that described previously with reference to Figures 6 and 10 above.

[0043] The pads 2 may have other shapes than those mentioned above, for example an asymmetrical shape or potato-shaped shape, provided that their apex is pointed, acute, rounded, convex, concave, annular, flat with a surface area of ​​less than 1.5 cm2, preferably less than 0.2 cm2.

[0044] The pads 2 are preferably made of a flexible material, preferably foam, for example PU (polyurethane), EVA (ethylene-vinyl acetate), PE (polyethylene), latex, neoprene, or silicone foam. A foam material offers a good compromise between lightness, shock absorption, and flexibility for user comfort. Other materials may, however, be used, such as natural or synthetic rubber, cork, quilted or padded fabric, etc. The pads 2 may also be in the form of a gel-filled pocket, for example, silicone gel, or a viscoelastic polymer.

[0045] According to a preferred embodiment, the material used for the pads has a hardness between 20 and 40 Shore A measured in accordance with ASTM D2240 (version in force on the date of filing of this application), in particular by means of a durometer. This range of hardness offers a good compromise between moderate flattening in the contact areas, user comfort, and shock and / or vibration absorption capacity.

[0046] According to an embodiment illustrated in [Fig. 17], the pads 2 are covered with a removable fabric 21. This fabric covers the outer surface of the pad 2. It may be made of absorbent fibers, such as cotton, or a synthetic material like microfiber polyester or elastane (e.g., Lycra®). This fabric 21 wicks away moisture generated by perspiration during prolonged helmet use, thus reducing sweat buildup on the user's scalp. The removable fabric 21 facilitates maintenance, allowing the user to remove it for washing or replacement, thereby ensuring optimal hygiene.

[0047] As an addition to or replacement for fabric 21, the pads 2 can be covered with flocking, preferably flocking made from nylon fibers (e.g., Nylon 66 Flocking Powder). This flocking, resistant to wear and frequent washing, softens the contact between the pad 2 and the scalp for greater user comfort. Indeed, hair glides over the flocking. It also allows for great design flexibility, enabling the addition of patterns or logos to the pads 2.

[0048] Referring to Figures 1 to 3, the pads 2 are installed with spacing within the internal cavity 100, i.e., they do not touch. This spacing between the pads 2 reduces the contact area between the internal cavity 100 and the user's scalp in order to maintain the hold of their hairstyle. Preferably, the spacing between the pads 2 is defined so that the contact area between the internal cavity 100 and the scalp is less than or equal to 20% of the surface area of ​​said cavity. The pads 2 are preferably spaced from each other by a distance of between 1 cm and 10 cm, this distance varying depending on their position within the cavity 100.

[0049] The pads 2 are installed interchangeably in the cavity 100 to offer the user modularity and a personalized fit according to the shape of their head and / or hairstyle. Furthermore, this interchangeability allows for the quick replacement of worn or damaged pads 2 without having to replace the entire helmet 1, thus providing an economical and sustainable solution.

[0050] The pads 2 are advantageously removably fixed in the internal cavity 100 by suitable fastening means. In one embodiment, when a liner 101 is installed in the internal cavity 100, the pads 2 are advantageously fixed to said liner by means of a removable fastener 22 ([Fig. 17]) of the hook-and-loop or hook-and-fur type (e.g., Velcro®) installed at the base of said pads. This type of fastener does not require any modification and / or adaptation of the helmet 1 to receive the pads 2.

[0051] According to another embodiment illustrated in [Fig. 18], the base of the bearings 2 incorporates a male or female fastening member 23, respectively, configured to engage in a removable manner with a female or male fastening member 123, respectively, installed in the internal cavity 100, for example, fixed to the shell 10 or to the bearing cap 101. The male fastening member may be in the form of a tenon or a protruding stud, designed to fit into a complementary housing, such as a female opening, provided on the internal surface of the shell 10 or on the bearing cap 101. It may also be in the form of a screw-on element. This fastening member offers ease of manual assembly / disassembly when it is necessary to remove or reposition the bearings 2, while ensuring secure retention, even in the event of vibrations or shocks.

[0052] According to another embodiment, the base of the pads 2 incorporates a magnet configured to cooperate with a complementary magnet installed in the internal cavity 100.

[0053] In figures 20 and 22, a multi-branch support 30 is removably installed inside the internal cavity 100. This support 3 is soft or flexible, for example made of fabric, leather, plastic or composite material, so as to be able to easily conform to the geometry of the internal cavity 100. The support 3 is also preferably thin (e.g., thickness between 1 mm and 3 mm) to best fit the geometry of the internal cavity 100, without bending.

[0054] The support 3 can be fixed in the internal cavity 100 by means of a removable hook-and-loop or hook-and-fur fastener (e.g., Velcro®) installed on one face of said support and adapted to cooperate with the lining 101 of the helmet 1. The support 3 can also be fixed in the internal cavity 100 by means of magnets or by means of male, or respectively female, fastening elements configured to engage removable in female, respectively male, fixing elements installed in the internal cavity 100.

[0055] The pads 2 are preferably removably fixed to the arms 30 of the support 3 by means of attachments of the aforementioned type: removable hook-and-loop or hook-and-fur type attachment installed at the base of said pads; male / female fastening element configured to engage in a removable manner in female / male fastening elements installed on the arms 30; magnets, etc. There may be one or more pads 2 per arm 30.

[0056] This multi-branch support 3 helps guide the user in positioning the pads 2. Indeed, unlike a configuration where each pad 2 must be individually placed in the internal cavity 100 without clear markings, each branch 30 serves as a precise positioning zone for the pads 2. The branches 30 create intuitive physical markers that indicate where each pad should be placed, while preventing the pads from being too close together.

[0057] Figures 19-20 and 21-22 illustrate two examples of a multi-branch support 3. In Figures 19-20, the branches 30 are symmetrically distributed and extend towards the parietal, temporal, occipital, and frontal areas of the head. In Figures 21-22, the support 3 has radiating branches 30 that originate from the center of the internal cavity 10 and fan out towards the parietal, temporal, occipital, and frontal areas of the head.

[0058] Due to its removable design, the support 3 can be easily removed and replaced. If necessary, to facilitate the installation of the pads 2, the user can first position said pads on the support 3 before installing the latter in the internal cavity 100.

[0059] Regardless of how they are fixed in the internal cavity 100, the number of pads 2 used varies in practice from 5 to 15. The number of pads 2 depends in particular on the shape of the user's head and / or their hairstyle. For example, the user may install two pads 2 in the parietal area of ​​the head, one pad 2 in each of the temporal areas, two pads 2 in the occipital area, and one pad 2 in the frontal area. In another example, one pad is installed in the parietal area, one pad in each of the temporal areas, one pad in the occipital area, and one pad in the frontal area. In yet another example, one pad is installed in the parietal area, two pads in each of the temporal areas, three pads in the occipital area, and three pads in the frontal area.

[0060] According to one embodiment, the pads 2 installed in the internal cavity 100 are all identical. According to another embodiment, the pads 2 have shapes and / or different sizes and / or hardnesses depending on their position in the internal cavity 100, so as to adapt to the shape of the user's head and / or their hairstyle. Similarly, the number of pads 2 may vary depending on the shape of the user's head and / or their hairstyle.

[0061] According to a first illustrative and non-limiting example, for a voluminous hairstyle on the top of the head and short on the sides, two types of pads 2 can be used. On the sides (temporal and occipital areas as well as the hairless frontal area), first pads 2 in the shape of a spherical cap of the type illustrated in [Fig. 4] or in the shape of a cone illustrated in [Fig. 12] can be used, with a certain rigidity (for example, a hardness between 30 and 40 Shore A), so as to ensure that the helmet stays securely in place. On the top of the head (parietal area as well as the hairy frontal area), second pads 2 in the shape of a paraboloidal cap of the type illustrated in [Fig. 8] or in the shape of a cone with a rounded apex illustrated in [Fig. 13] can be used.With their more pointed tip and narrower sides, these secondary pads help reduce flattening of the hairstyle in the most voluminous areas. To reduce pressure points, these secondary pads preferably have a certain degree of flexibility (for example, a hardness between 20 and 30 Shore A).

[0062] According to a second illustrative and non-limiting example, for a smooth and flat hairstyle, the pads 2 have a wider contact area, in particular in the shape of a spherical segment of the type illustrated in Figures 5 or 6 and / or in the shape of a paraboloid segment of revolution of the type illustrated in Figures 8 or 9 and / or in the shape of a truncated cone or truncated pyramid, with a certain rigidity (for example a hardness between 30 and 40 Shore A), distributed uniformly in the internal cavity 100. The flat or linear contact area and the homogeneous distribution of the pads 2 make it possible to keep the hairstyle in place, without creating creases, and close to the skull.

[0063] These two examples illustrate the personalization of the hair accessory according to hairstyles, guaranteeing both user comfort and the aesthetic preservation of their hairstyle.

[0064] The arrangement of the various elements and / or means and / or steps of the invention, in the embodiments described above, should not be understood as requiring such an arrangement in all implementations. In any event, it will be understood that various modifications may be made to these elements and / or means and / or steps, without departing from the spirit and scope of the invention.

[0065] Furthermore, one or more features shown only in one embodiment can be combined with one or more other features shown only in another embodiment. Similarly, one or more features shown only in one embodiment can be generalized to other embodiments, even if this or these characteristics are described only in combination with other characteristics.

Claims

Demands

1. Protective helmet comprising a rigid protective shell (10) defining an internal cavity (100) whose geometry is adapted to the head of a user, characterized in that said helmet is equipped with an accessory for holding the user's headgear, said accessory comprising a set of interchangeable pads (2) installed with spacing in the internal cavity (100) so as to, in use, come into contact with the head of the user, and in that: - the pads each have a base and a top, said base being wider than said top, - said top has one of the following shapes: pointed, acute, rounded, convex, concave, annular, flat with a surface area of ​​less than 1.5 cm2, preferably less than 0.2 cm2.

2. Helmet according to claim 1, wherein the pads (2) have a shape belonging to the following family: spherical cap, paraboloidal cap, spherical segment, segment of a paraboloid of revolution, cone, cone truncated at its apex, pyramid, pyramid truncated at its apex.

3. Helmet according to any one of the preceding claims, wherein all or part of the pads (2) have a hole (20) at their apex, which hole extends along the axis of symmetry (S) of said pad.

4. Helmet according to claim 3, wherein the hole (20) has a diameter corresponding to that of the top of the pad (2).

5. Helmet according to any one of claims 3 or 4, wherein the hole (20) is through and opens at the base and top of the pad (2).

6. Helmet according to any one of the preceding claims, wherein the pads (2) are made of a soft material, preferably foam.

7. Helmet according to any one of the preceding claims, wherein the pads (2) have different shapes and / or sizes and / or hardnesses depending on their position in the internal cavity (100).

8. Helmet according to any one of the preceding claims, wherein the pads (2) have a disc-shaped base having diameter (D) is between 15 mm and 35 mm and has a height (H) between 3 mm and 20 mm.

9. Helmet according to any one of the preceding claims, wherein the pads (2) are spaced from each other by a distance of between 1 cm and 10 cm.

10. Helmet according to any one of the preceding claims, wherein each pad (2) is covered with a removable fabric on its outer surface and / or covered with flocking, preferably flocking based on nylon fibers.

11. Helmet according to any one of the preceding claims, wherein the pads (2) are removably fixed in the internal cavity (100).

12. Helmet according to claim 11, comprising one of the following features: - a liner (101) is installed in the internal cavity (100), each pad (2) being fixed to said liner by means of a removable fastener (22) of the hook-and-loop or hook-and-hair type (22) installed at the base of said pads, - the base of each pad (2) incorporates a male (23), or female, fastening member, configured to engage in a removable manner in a female (123), or male, fastening member, installed in the internal cavity (100), - the base of each pad (2) incorporates a magnet configured to cooperate with a complementary magnet installed in the internal cavity (100).

13. Helmet according to any one of the preceding claims, wherein a flexible or multi-pronged support (30) is removably installed inside the internal cavity (100), the pads (2) being removably attached to said prongs.

14. Ready-to-assemble assembly comprising: - a protective helmet (1) having a rigid protective shell (10) defining an internal cavity (100) whose geometry is adapted to the user's head, - a headgear accessory for the user, said accessory comprising a set of interchangeable pads (2) installed with spacing in the internal cavity (100) so as to, in use, come into contact with the user's head, said pads each having a base and a

15. summit, said base being wider than said summit, said summit has one of the following shapes: pointed, acute, rounded, convex, concave, annular, flat with a surface area of ​​less than 1.5 cm2, preferably less than 0.2 cm2. A method for maintaining the hairstyle of a user wearing a protective helmet (1), said helmet comprising a rigid protective shell (10) defining an internal cavity (100) whose geometry is adapted to the user's head, said method comprising the steps of: - to construct a set of pads (2) each having a base and a top, said base being wider than said top, said top having one of the following shapes: pointed, acute, rounded, convex, concave, annular, flat with a surface area of ​​less than 1.5 cm2, preferably less than 0.2 cm2, - to install in the internal cavity (100) of said helmet, the set of pads (2), which pads are installed interchangeably and with spacing in said internal cavity so as, in use, to come into contact with the head of the user.

Images