[go: up one dir, main page]

EP2845500B1 - Helmet - Google Patents

Helmet Download PDF

Info

Publication number
EP2845500B1
EP2845500B1 EP14002555.2A EP14002555A EP2845500B1 EP 2845500 B1 EP2845500 B1 EP 2845500B1 EP 14002555 A EP14002555 A EP 14002555A EP 2845500 B1 EP2845500 B1 EP 2845500B1
Authority
EP
European Patent Office
Prior art keywords
ribs
helmet
rib
internal structure
outer shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP14002555.2A
Other languages
German (de)
French (fr)
Other versions
EP2845500A1 (en
Inventor
Stéphane Latruffe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Salomon SAS
Original Assignee
Salomon SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Salomon SAS filed Critical Salomon SAS
Publication of EP2845500A1 publication Critical patent/EP2845500A1/en
Application granted granted Critical
Publication of EP2845500B1 publication Critical patent/EP2845500B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/10—Linings
    • A42B3/12—Cushioning devices
    • A42B3/125—Cushioning devices with a padded structure, e.g. foam
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/10—Linings
    • A42B3/12—Cushioning devices
    • A42B3/124—Cushioning devices with at least one corrugated or ribbed layer
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/10—Linings
    • A42B3/12—Cushioning devices
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/10—Linings
    • A42B3/12—Cushioning devices
    • A42B3/125—Cushioning devices with a padded structure, e.g. foam
    • A42B3/128—Cushioning devices with a padded structure, e.g. foam with zones of different density

Definitions

  • the invention relates to the field of helmets, in particular sports helmets and in particular helmets for skiing, climbing, mountaineering or cycling.
  • Sports helmets usually have an outer shell and a layer forming an internal structure.
  • the outer shell defines an inner envelope delimited by a lower edge.
  • the internal structure is housed in the inner envelope.
  • the internal structure defines a volume within which the user inserts his head.
  • a comfort cap is interposed between the internal structure and the skull of the user.
  • the combination of the outer shell and the internal structure provides protection for the user's head.
  • This combination is designed to absorb shocks worn on the helmet and prevent the perforation of the protection.
  • weight is an important criterion in the performance of a helmet. Indeed, the comfort of the user is closely related to the weight of the helmet. Thus, some sportsmen do not use a helmet because they find them too heavy.
  • the weight of the helmet supported by the head directly conditions the level of fatigue of the user which is proportional to the time of portage. As a result, the more lightweight the helmet, the better the wearer's sensations and sports performance.
  • the user feels more free and easy in his head movements. He will not feel like wearing a helmet.
  • the present invention provides a helmet as described in independent claim 1.
  • This helmet comprising an outer shell having a top and defining an inner envelope delimited by a lower edge.
  • the helmet also includes an internal structure disposed within the inner casing.
  • the internal structure comprises a plurality of ribs, each rib extending from the top to the lower edge.
  • shock absorption is largely provided by the ribs of the internal structure. Indeed, in case of shocks, the ribs deform by compressing or bending, which reduces the energy of the shock that is transmitted to the head. Extending from the top to the lower edge, the ribs have good damping characteristics.
  • the internal structure forms a layer of the same material. This layer does not necessarily have a constant thickness but substantially covers the surface of the skull. Being formed of ribs, the internal structure is more hollow than conventional structures which reduces the weight of the internal structure and thus limit the weight of the helmet. Alternatively, the space between two ribs can be filled with a material of very low density relative to the material of the ribs.
  • the disposition of the ribs makes it possible to distribute homogeneously both the weight of the helmet during use and at the same time the energy transmitted to the head in the event of impact.
  • the internal structure defines, between each pair of adjacent ribs, a free space of air circulation which improves the ventilation and comfort of the user.
  • the helmet 1 according to the invention comprises an outer shell 100 having a top 102, an outwardly facing outer face and an inner face 104 defining an inner shell 101.
  • the inner shell 101 extends from the top 102 to lower edge 103 of the outer shell. It defines a reception volume of an internal structure 200.
  • figure 3 clearly illustrates the internal structure 200 before its introduction into the inner casing 101.
  • the invention is not limited to the embodiments of the helmets in which the internal structure 200 is obtained independently of the shell external 100 before being assembled in the latter.
  • the invention also extends to manufacturing methods in which the internal structure 200 is injected directly into the outer shell 100 previously produced.
  • the internal structure 200 comprises a set of ribs 201.
  • the ribs 201 extend from the top 102 towards the lower edge 103.
  • Each rib 201 has an outer profile 202 shaped to marry the inner face 104.
  • the outer shell 100 and the inner structure 200 are shaped so that the outer profile 202 of each rib 201 is in contact with the inner face 104 over the entire dimension in which the rib 201 extends.
  • Each rib 201 has an internal profile 203 shaped to fit the shape of the skull of the user.
  • a comfort cap not shown, can be inserted between the ribs and the head of the user which improves the wearing comfort.
  • Each outer 202 and inner 203 profile is curved.
  • each rib 201 represents an arch or vault shape extending from the top 102 to a lower edge 103 thus forming a meridian whose one pole is the top 202 of the inner casing 101.
  • At least some, and preferably all the ribs 201 extend to the lower edge 103.
  • Each rib 201 extends mainly along a longitudinal curve which follows the curvature of the inner casing 101.
  • the rib 201 is characterized by a height "h” and a thickness "e".
  • the height "h” may vary along the rib. It is defined in a direction perpendicular to the inner envelope 101 at the level of the measurement.
  • the thickness "e” is defined in a direction perpendicular to the height and "length" of the rib corresponding to the longitudinal curve.
  • the thickness "e” is less than the height "h” of the rib 201.
  • each rib 201 can easily deform in compression or bending according to its height in case of impact.
  • the useful dimension for shock absorption is mainly its height. Its thickness can be reduced in order to limit the weight of the helmet 1 while allowing the latter to maintain good overall impact resistance.
  • the section of the rib 201 along a plane perpendicular to the longitudinal curve is characterized by height and thickness.
  • the section may be rectangular, square or trapezoidal or more generally polygonal.
  • the rib 201 extends in a vertical plane when the helmet 1 is worn on a non-inclined head. This orientation of the ribs provides good damping in the main shock configurations.
  • the internal structure 200 comprises seventeen ribs 201.
  • the geometry of the ribs is different depending on their location so as to follow the inner casing 101 and the morphology of the skull.
  • the thickness of the ribs is constant and is between 0.5 and 3 centimeters, and preferably between 0.6 and 1 centimeter.
  • the height it varies along each rib between 1 and 5 centimeters, and preferably between 1.3 and 3 centimeters. Locally, the height is conditioned to the shape of the outer helmet. These height values are not fixed. The lowest height is often near the lower edge 103. The greatest height is often near the middle of the length of the rib.
  • all the ribs 201 have the same thickness. This facilitates the manufacture of the internal structure 200, since the ribs 201 can then be obtained by cutting 207 in the same plate, as will be detailed later.
  • the ribs 201 have different thicknesses. Larger thicknesses are for example provided in the areas requiring reinforcement or to ensure good strength of the helmet.
  • the other ribs 201 may themselves have smaller thicknesses to reduce the weight of the helmet 1.
  • the sizing of the ribs is important because it conditions the absorption of shocks.
  • the ribs are dimensioned so as to damp either by direct compression or bending / buckling of the rib, or a combination of both phenomena. In areas often stressed in the event of shocks, such as the forehead, the back of the head or in particularly fragile areas such as the temples, the dimensioning is adapted. Note that the thickness should not be too thin not to generate a wearing discomfort.
  • the distribution of the ribs 201 can be adapted to optimize the weight of the helmet 1 while maintaining a satisfactory impact resistance. For example, provision may be made to arrange the ribs 201 more closely in the sensitive areas (front, back of the head, temples) and to arrange them more spacially in the other areas.
  • the ribs 201 are distributed evenly over the entire periphery of the lower edge 103.
  • the helmet 1 comprises a binder provided to secure the various ribs 201 with the outer shell 100.
  • This binder forms a connecting layer 211 joining two adjacent ribs 201 as it appears on the Figures 1 and 4 to 8 . This keeps in position the ribs 201 between them and the outer shell 100. This also prevents them from slipping or sag during an impact for example.
  • the connecting layer 211 fixes at least one rib 201 on the outer shell 100 irremovably. This anchoring makes it possible to continuously maintain the integral internal structure of the outer shell.
  • the helmet then has a monolithic construction. The internal structure is then inchtmontable.
  • the ribs are deformed so as to provide damping adapted to the normative need.
  • the height of the connecting layer 211 is identical to that of the ribs 201.
  • the ribs 201 and the connecting layer 211 define a second inner envelope intended to conform to the shape of the skull of the user.
  • the connecting layer 211 also participates, with the ribs, shock absorption.
  • the height of the connecting layer 211 is lower than that of the ribs 201.
  • the ribs 201 provide a space 214 between the ribs 201 and the skull of the user which reduces the weight of the helmet 1 and improve its ventilation.
  • the connecting layer 211 extends over the entire space between two adjacent ribs 201.
  • this connecting layer 211 extends along the entire length of each rib 201.
  • the inner face 104 of the outer shell 100 is not visible when the internal structure 200 is located in the inner casing 101. This reinforces the outer shell 100 and improves the resistance of the helmet to shocks or perforations.
  • the height of the bonding layer 211 between the ribs is preferably greater than eight millimeters at any point in order to ensure good strength and cohesion of the ribs between them. Below, the ribs can sag.
  • the connecting layer 211 extends to the lower edge.
  • the connecting layer 211 has in the immediate vicinity of a rib 201 an increasing height approaching the rib 201.
  • the connecting layer 211 forms a body that can be removed.
  • This weld bead 212 appears clearly in Figures 5 and 6 .
  • the height of the connecting layer 211 varies along the rib 201.
  • the height h1 near the lower edge 103 is greater than the height h2 located in the upper part of the helmet 1. This allows to limit the amount of material and therefore the weight of the helmet 1, while strengthening the areas that must be. In addition, this distribution remains compatible with an embodiment of the helmet injection binder.
  • the height of the connecting layer 211 is homogeneous between the vertex 102 and the lower edge 103.
  • the ribs 201 are in EPS. This makes it possible to reduce the cost of the helmet 1.
  • they are made of EPP, a material that has a higher elastic limit than the EPS, which therefore allows the helmet to absorb stronger shocks before being altered. It can be reused after suffering some limited shocks.
  • EPP and EPS also have the advantages of being hydrophobic. They can therefore be used without the addition of a sealing envelope.
  • a density of between 60 and 100 g / l will be chosen.
  • the ribs 201 will preferably be corrugated paperboard or paper or rubber. These embodiments are preferably provided with a tight protection to preserve the ribs 201 of the water.
  • all the ribs 201 are made of the same material and have the same density. Alternatively, some ribs do not have the same density and / or are not made of the same material as other ribs. This makes it possible to adapt the strength and the weight of the internal structure 200. It is thus possible to adapt the characteristics of the helmet locally. For example, by strengthening the sensitive parts. This also optimizes the weight of the helmet.
  • the material of the binder 211 is also made of EPP or EPS without this being limiting.
  • the material of the ribs 201 and the material of the binder 211 are of the same nature, it is possible to provide a density difference between these parts.
  • the ribs 201 have a higher density than the binder 211 to ensure good shock absorption and good support of the helmet 1 on the skull.
  • a binder 211 of lower density this makes it possible to reduce the weight of the helmet 1.
  • the density of the binder 211 is between 10 and 60 g / l so as to be less than the density of the ribs. 201.
  • the connecting layer 211 preferably has a height significantly lower than that of the ribs 201 in order to lighten the helmet 1.
  • the height of the bonding layer 211 over at least half the length of the rib is less than 70% of the height of the rib 201.
  • the invention has the advantage of being compatible with two helmet manufacturing technologies.
  • a first technology comprises the following steps.
  • the outer shell 100 is made.
  • a polycarbonate plate or an equivalent material is heated. It can be a copolymer of acrylonitrile butadiene styrene (ABS), flax, carbon fibers or glass fibers.
  • ABS acrylonitrile butadiene styrene
  • the plate is then deformed according to a curve. Then, cut the edges.
  • This outer shell is flexible, very light and resistant to perforation.
  • the outer shell 100 is inserted into a mold and then the same material is injected inside the outer shell to form both the internal structure 200 comprising the ribs 211 and the bonding layer 211.
  • the internal structure 200 and the binder 211 form a monolithic injected part, having great cohesion and strong strength.
  • the helmet thus produced has a very good hold between its constituent elements and is particularly light.
  • this embodiment makes it possible to reduce the assembly steps. It is possible, before the second step, to add a coating on the inner face of the shell to improve the adhesion between it and the internal parts.
  • the inner part is made by bi-injection, which allows the use of different material between the ribs and the binder.
  • the internal structure 200 is inserted inside the outer shell 100, as illustrated in FIG. figure 3 .
  • This subassembly consisting of the outer shell 100 and the internal structure 200 is then inserted into the mold.
  • the binder 211 is injected to secure the internal structure 200 with the outer shell 100.
  • the helmet produced has a very good resistance between its constituent elements and is particularly light.
  • This embodiment incorporates an additional assembly step with respect to the previous embodiment. However, it allows more possibilities on the realization of the internal structure 200 that we will see later.
  • a second compatible technology is to perform, in a first step, the outer shell by injection rather than by deformation.
  • the outer shell is then stiffer, a little heavier and has good strength and resistance to perforation.
  • the material used is preferably acrylonitrile butadiene styrene (ABS).
  • ABS acrylonitrile butadiene styrene
  • the other materials mentioned above for the outer shell 100 may be provided.
  • the internal structure may be secured to the outer shell by injection, similar to the assemblies described above.
  • the internal structure can be assembled to the inner shell by gluing or other technique, the binder being the adhesive element between the internal structure and the outer shell.
  • the internal structure 200 can be made independently.
  • the internal structure 200 is made by an assembly of the different ribs.
  • Each rib has a first end 204 intended to be disposed at the top 102.
  • This first end 204 comprises a fastener 206 to secure the rib 201, or directly to other ribs (embodiment not shown) or to a piece forming a common connecting support 210 for all the ribs 201 (as illustrated in FIG. figure 2 ).
  • the support 210 has a body 213 in the form of a tube providing a hollow space 214 to lighten the helmet 1.
  • the section of the tube is preferably circular or oval because it allows a good distribution of efforts on the ribs .
  • the section is polygonal and / or full.
  • the ribs 201 define a housing 209 for receiving the support 210.
  • This body 213 also comprises fasteners 215 complementary to those 206 of the ribs 201.
  • these complementary fixing members 215 form crenels each configured to receive a pin 216 carried by the first end 204 of the rib 201.
  • the upper and lower ends of the support 210 have slots around their entire periphery and each of the first ends 204 of the ribs 201 have two pins 216.
  • the pins 216 of the same rib 201 are configured to fit each into a slot carved respectively in the upper and lower ends of the body 213.
  • FIGS. 7 and 8 clearly illustrate the support 210 forming a common fastener for all the ribs 201.
  • the thickness of the body 213 appears in section in the recess formed between the two pins 216 of each rib 201.
  • the support 210 The common shape thus forms a keystone for the whole of the internal structure 200.
  • This embodiment has the advantage of being particularly easy to manufacture since it does not require an injection mold. It suffices to simply cut out, for example by laser or water jet, ribs 201 and then to assemble them together or to the common support 210. This type of cut is very easily modifiable and thus makes it possible to simply and inexpensively customize the shape of the ribs 201.
  • this embodiment makes it easy to use different materials to optimize the weight and strength of the helmet.
  • the binder is then placed between the ribs 201 to form the bonding layer 211.
  • a resorbable tool or material is preferably provided to maintain the ribs 201 in the forward position and during the injection of the bonding layer 211 between the ribs 201.
  • orifices 208 are formed in the ribs.
  • these orifices 208 are located near the inner face 104 of the outer shell 100. They are typically located at a distance of between 1 and 10 mm from the latter. Their diameter is greater than 3 mm so that during the injection of the binder material 211, the latter enters the orifices 208.
  • the binder material 211 freezes, it then strengthens the cohesion between the ribs 201 and the layer binder 211 located between them which improves the strength of the helmet 1.
  • the internal profile 203 of the ribs 201 does not form a line in continuous contact with the skull. This makes it possible to increase the aeration of the helmet 1, this allows especially the portions of ribs 201 situated between the cuts 207 to deform in flexion and / or in translation in order to improve the absorption of the forces transmitted from the outer shell 100 to the skull.
  • the depth of the cutout 207 is greater than 30% of the height of the rib in a cut-free zone 207.
  • the helmet After completion of the internal structure in the outer shell, the helmet is completed by adding strap.
  • a comfort cap is added between the skull and the ribs.
  • the helmet comprises a connecting strip which connects the ribs near their second end 205.
  • the connecting strip is applied all around the inner casing 101, preferably at the lower edge 103.
  • it is formed by the binder material, during the same step as the production of the linking layer 211.

Landscapes

  • Helmets And Other Head Coverings (AREA)

Description

DOMAINE TECHNIQUE DE L'INVENTIONTECHNICAL FIELD OF THE INVENTION

L'invention concerne le domaine des casques, en particulier les casques de sport et notamment les casques de ski, d'escalade, d'alpinisme ou de cyclisme.The invention relates to the field of helmets, in particular sports helmets and in particular helmets for skiing, climbing, mountaineering or cycling.

ÉTAT DE LA TECHNIQUESTATE OF THE ART

Les casques de sport comportent habituellement une coque externe et une couche formant une structure interne. La coque externe définit une enveloppe interne délimitée par un bord inférieur. La structure interne est logée dans l'enveloppe interne. La structure interne définit un volume à l'intérieur duquel l'utilisateur insère sa tête. Généralement, une coiffe de confort est interposée entre la structure interne et le crâne de l'utilisateur.Sports helmets usually have an outer shell and a layer forming an internal structure. The outer shell defines an inner envelope delimited by a lower edge. The internal structure is housed in the inner envelope. The internal structure defines a volume within which the user inserts his head. Generally, a comfort cap is interposed between the internal structure and the skull of the user.

La combinaison de la coque externe et de la structure interne assure la protection de la tête de l'utilisateur. Cette combinaison a pour but d'absorber les chocs portés sur le casque et d'empêcher la perforation de la protection. En plus de la résistance aux chocs, le poids est un critère important entrant dans les performances d'un casque. En effet, le confort de l'utilisateur est étroitement lié au poids du casque. Ainsi, certains sportifs n'utilisent pas de casque car ils les trouvent trop lourds. Le poids du casque supporté par la tête conditionne directement le niveau de fatigue de l'utilisateur qui est proportionnel au temps de portage. En conséquence, plus le casque est léger, meilleures sont les sensations du porteur et ses performances sportives. De plus, avec un casque léger, l'utilisateur se sent plus libre et aisé dans ses mouvements de tête. Il n'aura plus la sensation de porter un casque.The combination of the outer shell and the internal structure provides protection for the user's head. This combination is designed to absorb shocks worn on the helmet and prevent the perforation of the protection. In addition to impact resistance, weight is an important criterion in the performance of a helmet. Indeed, the comfort of the user is closely related to the weight of the helmet. Thus, some sportsmen do not use a helmet because they find them too heavy. The weight of the helmet supported by the head directly conditions the level of fatigue of the user which is proportional to the time of portage. As a result, the more lightweight the helmet, the better the wearer's sensations and sports performance. In addition, with a lightweight helmet, the user feels more free and easy in his head movements. He will not feel like wearing a helmet.

Plusieurs solutions ont été proposées pour réduire le poids des casques. Ces solutions prévoient en général de réduire le poids de la couche formant la structure interne. Pour conserver une résistance aux chocs satisfaisante, la densité du matériau ne peut cependant pas être réduite trop fortement avec une construction classique, ce qui limite par conséquent le gain en matière de poids. D'autres solutions ont été proposées, notamment dans la demande de brevet EP 2 111 768 A1 et dans les brevets US 6,694,529 B1 et US 3,994,020 . Ainsi, il existe un besoin consistant à proposer une construction permettant de limiter significativement le poids d'un casque de sport tout en conservant une résistance satisfaisante et plus particulièrement pour l'absorption des chocs. Tel est l'objet de la présente invention.Several solutions have been proposed to reduce the weight of the helmets. These solutions generally provide for reducing the weight of the layer forming the internal structure. To maintain satisfactory impact strength, however, the density of the material can not be reduced too much with a conventional construction, thereby limiting weight gain. Other solutions have been proposed, especially in the patent application EP 2,111,768 A1 and in patents US 6,694,529 B1 and US 3,994,020 . Thus, there is a need to provide a construction that significantly limits the weight of a sports helmet while maintaining satisfactory strength and more particularly for shock absorption. This is the object of the present invention.

RÉSUMÉ DE L'INVENTIONSUMMARY OF THE INVENTION

Pour atteindre cet objectif, la présente invention prévoit un casque tel que décrit dans la revendication indépendante 1. Ce casque comprenant une coque externe présentant un sommet et définissant une enveloppe interne délimitée par un bord inférieur. Le casque comprend également une structure interne disposée à l'intérieur de l'enveloppe interne. La structure interne comprend une pluralité de nervures, chaque nervure s'étendant depuis le sommet vers le bord inférieur.To achieve this objective, the present invention provides a helmet as described in independent claim 1. This helmet comprising an outer shell having a top and defining an inner envelope delimited by a lower edge. The helmet also includes an internal structure disposed within the inner casing. The internal structure comprises a plurality of ribs, each rib extending from the top to the lower edge.

De par cette construction, l'amortissement des chocs est en grande partie assuré par les nervures de la structure interne. En effet, en cas de chocs, les nervures se déforment en se comprimant ou fléchissant, ce qui permet de réduire l'énergie du choc qui est transmise à la tête. En s'étendant depuis le sommet vers le bord inférieur, les nervures présentent de bonnes caractéristiques d'amortissement.By this construction, shock absorption is largely provided by the ribs of the internal structure. Indeed, in case of shocks, the ribs deform by compressing or bending, which reduces the energy of the shock that is transmitted to the head. Extending from the top to the lower edge, the ribs have good damping characteristics.

Beaucoup de structures internes forment une couche d'un même matériau. Cette couche n'a pas nécessairement une épaisseur constante mais couvre sensiblement la surface du crâne. En étant formée de nervures, la structure interne est plus évidée que les structures classiques ce qui permet de réduire la masse de la structure interne et donc de limiter le poids du casque. Alternativement, l'espace entre deux nervures peut être rempli d'un matériau de très faible densité par rapport au matériau des nervures.Many internal structures form a layer of the same material. This layer does not necessarily have a constant thickness but substantially covers the surface of the skull. Being formed of ribs, the internal structure is more hollow than conventional structures which reduces the weight of the internal structure and thus limit the weight of the helmet. Alternatively, the space between two ribs can be filled with a material of very low density relative to the material of the ribs.

La disposition des nervures permet de répartir de manière homogène à la fois le poids du casque lors de l'utilisation et à la fois l'énergie transmise à la tête en cas de choc.The disposition of the ribs makes it possible to distribute homogeneously both the weight of the helmet during use and at the same time the energy transmitted to the head in the event of impact.

En outre, la structure interne définit, entre chaque paire de nervures adjacente, un espace libre de circulation de l'air ce qui améliore l'aération et le confort de l'utilisateur.In addition, the internal structure defines, between each pair of adjacent ribs, a free space of air circulation which improves the ventilation and comfort of the user.

De manière optionnelle, l'invention peut présenter l'une quelconque des caractéristiques optionnelles suivantes prises seules ou en combinaison :

  • Les nervures s'étendent, selon une première direction, depuis le sommet vers le bord inférieur et, selon une deuxième direction, depuis la coque externe vers l'intérieur d'un volume défini par l'enveloppe interne.
  • Chaque nervure s'étend dans un plan tel qu'en tout point de la nervure ce plan est perpendiculaire à un autre plan qui tangente l'enveloppe interne au droit de ce point.
  • Chaque nervure s'étend dans un plan vertical lorsque le casque est porté normalement, sans inclinaison de la tête. Chaque nervure présente une direction principale d'élongation qui s'étend depuis le sommet vers le bord inférieur.
  • Au moins certaines et de préférence toutes les nervures épousent la forme de l'enveloppe interne selon une portion de méridienne dont un pôle est le sommet de l'enveloppe interne.
  • Au moins certaines et de préférence toutes les nervures présentent un profil externe conformé pour épouser la forme de l'enveloppe interne et un profil interne conformé pour épouser la forme du crâne de l'utilisateur. Alternativement, au moins certaines et de préférence toutes les nervures présentent un profil externe conformé pour épouser la forme de l'enveloppe interne et un profil interne discontinu présentant des découpes et conformé pour prendre appui sur la tête de l'utilisateur uniquement entre deux découpes successives.
  • Au moins certaines et de préférence toutes les nervures présentent une zone d'appui destinée à être en appui avec la tête de l'utilisateur. Cette zone d'appui est surfacique. Cependant, une coiffe de confort peut s'interposer entre le crâne et le profil interne conformé. La coiffe de confort peut être formée de coussinet, de mousse et/ou de tissu.
  • Les nervures sont configurées pour prendre appui d'une part sur la tête de l'utilisateur et d'autre part sur la coque externe. Elles sont ainsi disposées sur le chemin de propagation des chocs générés sur le casque.
Optionally, the invention may have any of the following optional features taken alone or in combination:
  • The ribs extend in a first direction from the vertex to the lower edge and, in a second direction, from the outer shell inwardly of a volume defined by the inner envelope.
  • Each rib extends in a plane such that in every point of the rib this plane is perpendicular to another plane which tangents the inner envelope to the right of this point.
  • Each rib extends in a vertical plane when the helmet is worn normally, without inclination of the head. Each rib has a main elongation direction that extends from the top to the bottom edge.
  • At least some and preferably all the ribs follow the shape of the inner envelope in a portion of meridian whose pole is the top of the inner envelope.
  • At least some and preferably all the ribs have an outer profile shaped to conform to the shape of the inner casing and an internal profile shaped to fit the shape of the skull of the user. Alternatively, at least some and preferably all the ribs have an outer profile shaped to conform to the shape of the inner envelope and a discontinuous internal profile having cutouts and shaped to bear on the head of the user only between two successive cuts .
  • At least some and preferably all the ribs have a bearing zone intended to be in abutment with the user's head. This support zone is surface. However, a comfort cap can be placed between the skull and the consistent internal profile. The comfort cap may be formed of pad, foam and / or fabric.
  • The ribs are configured to bear on the one hand on the head of the user and on the other hand on the outer shell. They are thus arranged on the propagation path of the shocks generated on the helmet.

L'épaisseur (e) d'au moins certaines et de préférence toutes les nervures est inférieure ou égale à sa hauteur (h), la hauteur (h) en un point de la nervure étant prise perpendiculairement à l'enveloppe interne en ce point et l'épaisseur (e) étant prise selon une direction perpendiculaire à la hauteur et perpendiculaire à une dimension selon laquelle la nervure s'étend principalement. De préférence, l'épaisseur de la nervure est inférieure à 0.8 fois et de préférence inférieure à 0.6 fois sa hauteur.

  • Chaque nervure présente une hauteur (h) comprise entre 1 et 5 centimètres, et de préférence comprise entre 1 et 3.5 centimètres, la hauteur (h) en un point de la nervure étant prise perpendiculairement à l'enveloppe interne et passant par ce point. Chaque nervure présente une épaisseur (e) comprise entre 0.5 et 3 centimètres, et de préférence comprise entre 0.6 et 1 centimètre, l'épaisseur (e) en un point de la nervure étant prise perpendiculairement à la direction d'élongation principale de la nervure. L'épaisseur (e) d'une nervure correspond à la distance séparant les deux faces latérales de la nervure.
  • Chaque nervure présente une épaisseur sensiblement constante.
  • Le casque comporte une couche de liaison qui solidarise la structure interne avec la coque externe, la couche de liaison fixant au moins une nervure sur la coque de manière inamovible. Selon un mode de réalisation, la couche de liaison lie entre elles deux nervures adjacentes de la structure interne. Cela permet de maintenir les nervures en position solidaire de la coque externe en cas de choc. Les nervures encaissent alors les déformations par compression sur toute leur hauteur. Dans ce cas, le casque peut présenter les caractéristiques suivantes :
    • La couche de liaison s'étend le long de chaque nervure sur une dimension au moins égale à la moitié, et de préférence au moins égale au deux tiers de la longueur de la nervure, la longueur de la nervure étant prise selon la dimension principale selon laquelle elle s'étend, c'est-à-dire selon la courbe s'étendant depuis le sommet en direction du bord inférieur. Selon un mode de réalisation, la couche de liaison s'étend partiellement le long de chaque nervure depuis le bord inférieur vers le sommet. Selon un mode de réalisation, la couche de liaison s'étend le long de chaque nervure sur toute la longueur de la nervure.
    • La couche de liaison épouse la forme de l'enveloppe interne.
    • La couche de liaison est continue. Selon un mode particulier de réalisation, elle recouvre l'intégralité de l'enveloppe interne en dehors des nervures.
    • La couche de liaison et les nervures définissent une enveloppe externe conformée pour épouser la forme de l'enveloppe interne de la coque externe. Selon un mode de réalisation, l'enveloppe externe forme une surface continue, sans relief, conformée pour être continuellement en contact, avec l'enveloppe interne. Cela permet une meilleure transmission des efforts vers la structure interne lors d'un choc.
    • La couche de liaison présente une hauteur inférieure à celle des nervures. Selon un mode de réalisation, la hauteur de la couche de liaison est alors inférieure à 0.8 fois et de préférence inférieure à 0.6 fois la hauteur des nervures. Elle est préférentiellement supérieure à huit millimètres, en tout point.
    • La couche de liaison est constituée d'un matériau ayant des propriétés différentes du matériau constitutif des nervures. Ce peut être une même famille de matériau ou un matériau différent. Selon un mode de réalisation, la couche de liaison est formée dans un matériau dont la densité est inférieure à celle du matériau formant les nervures. Cela permet d'alléger le casque. Selon un mode de réalisation, la densité des nervures est comprise entre 60 et 100 grammes par litre. Selon un mode de réalisation, la densité de la couche de liaison est comprise entre 10 et 100 grammes par litre, et de préférence inférieure à 60 grammes par litre.
  • Le matériau formant les nervures et/ou le matériau formant la couche de liaison est par exemple un polystyrène expansé, habituellement désigné par l'acronyme EPS qui provient de l'anglais « Expandable Polystyrene ». Il peut également être un polypropylène expansé, habituellement désigné par l'acronyme EPP qui provient de l'anglais « Expandable Polypropylene ».
  • Au moins une nervure est constituée par une feuille mise en forme entre les deux faces latérales de la nervure. Par exemple, dans l'épaisseur de la nervure, la feuille peut former des ondulations, des créneaux, des zigzags ou autres schémas répétitifs. Les nervures peuvent être réalisées en papier ou en carton.
  • Les nervures de la structure interne présentent entre elles des matériaux et/ou des densités différentes.
  • Les nervures de la structure interne présentent entre elles des variations dimensionnelles et notamment des épaisseurs différentes ou des découpes locales dans leur hauteur. Selon un mode de réalisation, les nervures présentent un profil interne portant des découpes. La ligne d'appui entre la tête et la nervure n'est donc pas continue. Cela permet aux nervures de se déformer en flexion et/ou en rotation et d'améliorer l'aération du casque.
  • Les nervures sont réparties régulièrement autour de la périphérie du bord inférieur.
  • La structure interne forme une pluralité de secteurs délimités par deux nervures adjacentes, les secteurs étant ouverts au niveau du bord inférieur.
  • La structure interne est monobloc. Elle est monolithique. Elle est de préférence obtenue par injection d'un matériau formant les nervures.
  • La structure interne est un assemblage de plusieurs pièces distinctes comprenant les nervures et un support commun, dans lequel chaque nervure est assemblée sur un support commun disposé au niveau du sommet. Selon un mode de réalisation, chaque nervure comprend un organe de fixation destiné à coopérer avec un organe de fixation complémentaire porté par le support, la coopération des organes de fixation portés par la nervure et le support assurant la solidarisation de la nervure sur le support.
  • Chaque nervure s'étend entre une première extrémité disposée au niveau du sommet et une deuxième extrémité, un bandeau de liaison reliant entre elles l'ensemble des deuxièmes extrémités. Cela permet un bon maintien des extrémités libres des nervures. Selon un mode de réalisation, les deuxièmes extrémités s'étendent jusqu'au bord inférieur et le bandeau de liaison s'étend sur toute la périphérie du bord inférieur.
  • L'enveloppe interne est une surface pleine/continue. Elle ne présente pas d'ouvertures. Selon un autre mode de réalisation, l'enveloppe interne présente des ouvertures pour la ventilation.
The thickness (e) of at least some and preferably all the ribs is less than or equal to its height (h), the height (h) at a point of the rib being taken perpendicularly to the inner envelope at this point and the thickness (e) being taken in a direction perpendicular to the height and perpendicular to a dimension in which the rib extends mainly. Preferably, the thickness of the rib is less than 0.8 times and preferably less than 0.6 times its height.
  • Each rib has a height (h) of between 1 and 5 centimeters, and preferably between 1 and 3.5 centimeters, the height (h) at a point of the rib being taken perpendicular to the inner envelope and passing through this point. Each rib has a thickness (e) of between 0.5 and 3 centimeters, and preferably between 0.6 and 1 centimeter, the thickness (e) at a point of the rib being taken perpendicular to the main elongation direction of the rib. . The thickness (e) of a rib corresponds to the distance separating the two lateral faces of the rib.
  • Each rib has a substantially constant thickness.
  • The helmet has a tie layer which secures the internal structure with the outer shell, the tie layer fixing at least one rib on the shell irremovably. According to one embodiment, the bonding layer links together two adjacent ribs of the internal structure. This keeps the ribs in the fixed position of the outer shell in case of impact. Ribs then cash the deformations by compression over their entire height. In this case, the helmet may have the following characteristics:
    • The bonding layer extends along each rib on a dimension at least equal to half, and preferably at least equal to two-thirds of the length of the rib, the length of the rib being taken according to the main dimension according to which extends, that is to say along the curve extending from the top towards the lower edge. According to one embodiment, the tie layer extends partially along each rib from the bottom edge to the top. In one embodiment, the tie layer extends along each rib along the entire length of the rib.
    • The tie layer conforms to the shape of the inner envelope.
    • The bonding layer is continuous. According to a particular embodiment, it covers the entire inner envelope outside the ribs.
    • The tie layer and the ribs define an outer shell shaped to conform to the shape of the inner shell of the outer shell. According to one embodiment, the outer envelope forms a continuous surface, without relief, shaped to be continuously in contact with the inner envelope. This allows a better transmission of forces to the internal structure during an impact.
    • The tie layer has a lower height than the ribs. According to one embodiment, the height of the bonding layer is then less than 0.8 times and preferably less than 0.6 times the height of the ribs. It is preferably greater than eight millimeters, in every respect.
    • The tie layer is made of a material having different properties of the material constituting the ribs. It can be the same family of material or a different material. According to one embodiment, the bonding layer is formed in a material whose density is lower than that of the material forming the ribs. This helps to lighten the helmet. According to one embodiment, the density of the ribs is between 60 and 100 grams per liter. According to one embodiment, the density of the tie layer is between 10 and 100 grams per liter, and preferably less than 60 grams per liter.
  • The material forming the ribs and / or the material forming the tie layer is for example an expanded polystyrene, usually designated by the acronym EPS which comes from the English "Expandable Polystyrene". It can also be an expanded polypropylene, usually referred to as EPP which comes from the English "Expandable Polypropylene".
  • At least one rib is constituted by a shaped sheet between the two lateral faces of the rib. For example, in the thickness of the rib, the sheet may form undulations, crenellations, zigzags, or other repetitive patterns. The ribs can be made of paper or cardboard.
  • The ribs of the internal structure have between them different materials and / or densities.
  • The ribs of the internal structure have between them dimensional variations and in particular different thicknesses or local cuts in their height. According to one embodiment, the ribs have an internal profile carrying cutouts. The line of support between the head and the rib is therefore not continuous. This allows the ribs to deform in bending and / or rotation and improve ventilation of the helmet.
  • The ribs are regularly distributed around the periphery of the lower edge.
  • The internal structure forms a plurality of sectors delimited by two adjacent ribs, the sectors being open at the lower edge.
  • The internal structure is monobloc. It is monolithic. It is preferably obtained by injection of a material forming the ribs.
  • The internal structure is an assembly of several distinct pieces including the ribs and a common support, wherein each rib is assembled on a common support disposed at the top. According to one embodiment, each rib comprises a fixing member intended to cooperate with a complementary fastener carried by the support, the cooperation of the fasteners carried by the rib and the support ensuring the joining of the rib on the support.
  • Each rib extends between a first end disposed at the top and a second end, a connecting strip interconnecting all the second ends. This allows a good maintenance of the free ends of the ribs. According to one embodiment, the second ends extend to the lower edge and the connecting strip extends over the entire periphery of the lower edge.
  • The inner envelope is a solid / continuous surface. It does not have openings. According to another embodiment, the inner casing has openings for ventilation.

Les autres objets, caractéristiques et avantages de la présente invention apparaîtront à l'examen de la description suivante et des dessins d'accompagnement. Il est entendu que d'autres avantages peuvent être incorporés.Other objects, features and advantages of the present invention will become apparent from the following description and accompanying drawings. It is understood that other benefits may be incorporated.

BRÈVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

Les buts, objets, ainsi que les caractéristiques et avantages de l'invention ressortiront mieux de la description détaillée d'un mode de réalisation de cette dernière qui est illustré par les dessins d'accompagnement suivants dans lesquels :

  • la figure 1 est une vue en perspective d'un exemple de réalisation d'un casque selon l'invention.
  • La figure 2 est une vue en perspective d'une partie de structure interne pour un casque tel que celui illustré en figure 1, une nervure étant illustrée désassemblée.
  • La figure 3 est une vue en perspective d'une coque externe et d'une partie de structure interne avant assemblage pour former un casque tel que celui illustré en figure 1.
  • La figure 4 est une vue de dessous du casque de la figure 1, avant assemblage des sangles.
  • La figure 5 est une vue en coupe du casque de la figure 4 selon la section V.
  • La figure 6 est une vue en coupe du casque de la figure 4 selon la section VI.
  • La figure 7 est une vue en coupe du casque de la figure 4 selon la section VII.
  • La figure 8 est une vue en coupe de la même section que la figure 7, d'un casque selon un autre mode de réalisation, dans lequel les nervures présentent des formes particulières.
The objects, objects, as well as the features and advantages of the invention will become more apparent from the detailed description of an embodiment thereof which is illustrated by the following accompanying drawings in which:
  • the figure 1 is a perspective view of an exemplary embodiment of a helmet according to the invention.
  • The figure 2 is a perspective view of an internal structure portion for a helmet such as that illustrated in FIG. figure 1 , a rib being illustrated disassembled.
  • The figure 3 is a perspective view of an outer shell and a part of internal structure before assembly to form a helmet such as that illustrated in FIG. figure 1 .
  • The figure 4 is a bottom view of the helmet of the figure 1 , before assembling the straps.
  • The figure 5 is a sectional view of the helmet of the figure 4 according to section V.
  • The figure 6 is a sectional view of the helmet of the figure 4 according to section VI.
  • The figure 7 is a sectional view of the helmet of the figure 4 according to section VII.
  • The figure 8 is a sectional view of the same section as the figure 7 , a helmet according to another embodiment, wherein the ribs have particular shapes.

Les dessins sont donnés à titre d'exemples et ne sont pas limitatifs de l'invention.The drawings are given by way of examples and are not limiting of the invention.

DESCRIPTION DÉTAILLÉE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

Le casque 1 selon l'invention comporte une coque externe 100 présentant un sommet 102, une face externe tournée vers l'extérieur et une face interne 104 définissant une enveloppe interne 101. L'enveloppe interne 101 s'étend du sommet 102 jusqu'au bord inférieur 103 de la coque externe. Elle définit un volume de réception d'une structure interne 200. La figure 3 illustre clairement la structure interne 200 avant son introduction dans l'enveloppe interne 101. Comme cela sera détaillé par la suite, l'invention n'est pas limitée aux modes de réalisation des casques dans lesquels la structure interne 200 est obtenue indépendamment de la coque externe 100 avant d'être assemblée dans cette dernière.The helmet 1 according to the invention comprises an outer shell 100 having a top 102, an outwardly facing outer face and an inner face 104 defining an inner shell 101. The inner shell 101 extends from the top 102 to lower edge 103 of the outer shell. It defines a reception volume of an internal structure 200. figure 3 clearly illustrates the internal structure 200 before its introduction into the inner casing 101. As will be detailed later, the invention is not limited to the embodiments of the helmets in which the internal structure 200 is obtained independently of the shell external 100 before being assembled in the latter.

En effet l'invention s'étend également aux modes de fabrication dans lesquels on injecte la structure interne 200 directement à l'intérieur de la coque externe 100 préalablement réalisée.Indeed, the invention also extends to manufacturing methods in which the internal structure 200 is injected directly into the outer shell 100 previously produced.

La structure interne 200 comprend un ensemble de nervures 201. Lorsque la structure interne 200 est située dans la coque externe 100, les nervures 201 s'étendent depuis le sommet 102 en direction du bord inférieur 103. Chaque nervure 201 présente un profil externe 202 conformé pour épouser la face interne 104. De préférence, la coque externe 100 et la structure interne 200 sont conformées de manière à ce que le profil externe 202 de chaque nervure 201 soit au contact de la face interne 104 sur toute la dimension selon laquelle la nervure 201 s'étend.The internal structure 200 comprises a set of ribs 201. When the internal structure 200 is located in the outer shell 100, the ribs 201 extend from the top 102 towards the lower edge 103. Each rib 201 has an outer profile 202 shaped to marry the inner face 104. Preferably, the outer shell 100 and the inner structure 200 are shaped so that the outer profile 202 of each rib 201 is in contact with the inner face 104 over the entire dimension in which the rib 201 extends.

Chaque nervure 201 présente un profil interne 203 conformé pour épouser la forme du crâne de l'utilisateur. Une coiffe de confort, non représentée, peut s'intercaler entre les nervures et la tête de l'utilisateur ce qui permet d'améliorer le confort de portage.Each rib 201 has an internal profile 203 shaped to fit the shape of the skull of the user. A comfort cap, not shown, can be inserted between the ribs and the head of the user which improves the wearing comfort.

Chaque profil externe 202 et interne 203 est courbe.Each outer 202 and inner 203 profile is curved.

Ainsi, l'ensemble formé par les nervures 201 définit un volume creux d'accueil de la tête. Cet ensemble forme ainsi un dôme creux ou squelette. Chaque nervure 201 représente une forme d'arche ou de voûte s'étendant depuis le sommet 102 vers un bord inférieur 103 formant ainsi une méridienne dont un pôle est le sommet 202 de l'enveloppe interne 101.Thus, the assembly formed by the ribs 201 defines a hollow volume for receiving the head. This set thus forms a hollow dome or skeleton. Each rib 201 represents an arch or vault shape extending from the top 102 to a lower edge 103 thus forming a meridian whose one pole is the top 202 of the inner casing 101.

Selon un mode de réalisation, au moins certaines, et de préférence toutes les nervures 201, s'étendent jusqu'au bord inférieur 103.According to one embodiment, at least some, and preferably all the ribs 201, extend to the lower edge 103.

Chaque nervure 201 s'étend principalement selon une courbe longitudinale qui suit la courbure de l'enveloppe interne 101. La nervure 201 se caractérise par une hauteur « h » et une épaisseur « e ».Each rib 201 extends mainly along a longitudinal curve which follows the curvature of the inner casing 101. The rib 201 is characterized by a height "h" and a thickness "e".

La hauteur « h » peut varier le long de la nervure. Elle est définie selon une direction perpendiculaire à l'enveloppe interne 101 au niveau de la mesure.The height "h" may vary along the rib. It is defined in a direction perpendicular to the inner envelope 101 at the level of the measurement.

L'épaisseur « e » est définie selon une direction perpendiculaire à la hauteur et à la « longueur » de la nervure correspondant à la courbe longitudinale.The thickness "e" is defined in a direction perpendicular to the height and "length" of the rib corresponding to the longitudinal curve.

Selon un mode de réalisation, l'épaisseur « e » est inférieure à la hauteur « h » de la nervure 201. Ainsi, chaque nervure 201 peut aisément se déformer en compression ou en flexion selon sa hauteur en cas de choc. La dimension utile pour l'absorption des chocs est principalement sa hauteur. Son épaisseur peut quant à elle, être réduite afin de limiter le poids du casque 1 tout en permettant à ce dernier de conserver une bonne résistance globale aux chocs.According to one embodiment, the thickness "e" is less than the height "h" of the rib 201. Thus, each rib 201 can easily deform in compression or bending according to its height in case of impact. The useful dimension for shock absorption is mainly its height. Its thickness can be reduced in order to limit the weight of the helmet 1 while allowing the latter to maintain good overall impact resistance.

La section de la nervure 201 selon un plan perpendiculaire à la courbe longitudinale est caractérisée par la hauteur et l'épaisseur. La section peut être rectangulaire, carrée ou trapézoïdale ou plus généralement polygonale.The section of the rib 201 along a plane perpendicular to the longitudinal curve is characterized by height and thickness. The section may be rectangular, square or trapezoidal or more generally polygonal.

Selon un mode de réalisation, la nervure 201 s'étend selon un plan vertical lorsque le casque 1 est porté sur une tête non inclinée. Cette orientation des nervures procure un bon amortissement dans les configurations de chocs principales.According to one embodiment, the rib 201 extends in a vertical plane when the helmet 1 is worn on a non-inclined head. This orientation of the ribs provides good damping in the main shock configurations.

Dans le mode de réalisation illustré, la structure interne 200 comporte dix-sept nervures 201. La géométrie des nervures est différente en fonction de leur localisation de sorte à suivre l'enveloppe interne 101 et la morphologie du crâne. Dans cet exemple, l'épaisseur des nervures est constante et est comprise entre 0.5 et 3 centimètres, et de préférence comprise entre 0.6 et 1 centimètre. Concernant la hauteur, celle-ci varie le long de chaque nervure entre 1 et 5 centimètres, et de préférence comprise entre 1,3 et 3 centimètres. Localement, la hauteur est conditionnée à la forme du casque externe. Ces valeurs de hauteur ne sont donc pas figées. La plus faible hauteur se situe souvent proche du bord inférieur 103. La plus grande hauteur se situe souvent proche du milieu de la longueur de la nervure.In the illustrated embodiment, the internal structure 200 comprises seventeen ribs 201. The geometry of the ribs is different depending on their location so as to follow the inner casing 101 and the morphology of the skull. In this example, the thickness of the ribs is constant and is between 0.5 and 3 centimeters, and preferably between 0.6 and 1 centimeter. Regarding the height, it varies along each rib between 1 and 5 centimeters, and preferably between 1.3 and 3 centimeters. Locally, the height is conditioned to the shape of the outer helmet. These height values are not fixed. The lowest height is often near the lower edge 103. The greatest height is often near the middle of the length of the rib.

Selon un mode de réalisation, toutes les nervures 201 présentent la même épaisseur. Cela permet de faciliter la fabrication de la structure interne 200, puisque les nervures 201 peuvent alors être obtenues par découpe 207 dans une même plaque, comme cela sera détaillé par la suite.According to one embodiment, all the ribs 201 have the same thickness. This facilitates the manufacture of the internal structure 200, since the ribs 201 can then be obtained by cutting 207 in the same plate, as will be detailed later.

Selon un autre mode de réalisation, les nervures 201 présentent des épaisseurs différentes. Des épaisseurs plus importantes sont par exemple prévues dans les zones nécessitant un renfort ou pour assurer une bonne tenue du casque. Les autres nervures 201 peuvent quant à elles présenter des épaisseurs plus faibles pour réduire le poids du casque 1. Le dimensionnement des nervures est important car il conditionne l'absorption des chocs. Les nervures sont donc dimensionnées de manière à pouvoir amortir soit par compression directe, soit par flexion/flambage de la nervure, soit une combinaison des deux phénomènes. Dans les zones souvent sollicitées en cas de chocs, comme par exemple le front, l'arrière de la tête ou dans les zones particulièrement fragiles comme les tempes, le dimensionnement est adapté. A noter que l'épaisseur ne doit pas être trop fine pour ne pas générer un inconfort de portage.According to another embodiment, the ribs 201 have different thicknesses. Larger thicknesses are for example provided in the areas requiring reinforcement or to ensure good strength of the helmet. The other ribs 201 may themselves have smaller thicknesses to reduce the weight of the helmet 1. The sizing of the ribs is important because it conditions the absorption of shocks. The ribs are dimensioned so as to damp either by direct compression or bending / buckling of the rib, or a combination of both phenomena. In areas often stressed in the event of shocks, such as the forehead, the back of the head or in particularly fragile areas such as the temples, the dimensioning is adapted. Note that the thickness should not be too thin not to generate a wearing discomfort.

De même, la répartition des nervures 201 peut être adaptée pour optimiser le poids du casque 1 tout en conservant une résistance aux chocs satisfaisante. Par exemple, on peut prévoir de disposer les nervures 201 de façon plus rapprochée dans les zones sensibles (front, arrière de la tête, tempes) et de les disposer de manière plus espacée dans les autres zones.Similarly, the distribution of the ribs 201 can be adapted to optimize the weight of the helmet 1 while maintaining a satisfactory impact resistance. For example, provision may be made to arrange the ribs 201 more closely in the sensitive areas (front, back of the head, temples) and to arrange them more spacially in the other areas.

Alternativement, on répartit les nervures 201 de manière homogène sur toute la périphérie du bord inférieur 103.Alternatively, the ribs 201 are distributed evenly over the entire periphery of the lower edge 103.

Selon un mode de réalisation, le casque 1 comprend un liant prévu pour solidariser les différentes nervures 201 avec la coque externe 100. Ce liant forme une couche de liaison 211 joignant deux nervures 201 voisines comme cela apparaît sur les figures 1 et 4 à 8. Cela permet de maintenir en position les nervures 201 entre elles et sur la coque externe 100. Cela permet aussi d'éviter qu'elles ne glissent ou s'affaissent lors d'un choc par exemple.According to one embodiment, the helmet 1 comprises a binder provided to secure the various ribs 201 with the outer shell 100. This binder forms a connecting layer 211 joining two adjacent ribs 201 as it appears on the Figures 1 and 4 to 8 . This keeps in position the ribs 201 between them and the outer shell 100. This also prevents them from slipping or sag during an impact for example.

La couche de liaison 211 fixe au moins une nervure 201 sur la coque externe 100 de manière inamovible. Cet ancrage permet de maintenir continuellement la structure interne solidaire de la coque externe. Le casque présente alors une construction monolithique. La structure interne est alors indémontable.The connecting layer 211 fixes at least one rib 201 on the outer shell 100 irremovably. This anchoring makes it possible to continuously maintain the integral internal structure of the outer shell. The helmet then has a monolithic construction. The internal structure is then indémontable.

De plus, lors d'un choc, en étant fixées, les nervures se déforment de sorte à assurer un amortissement adapté au besoin normatif.In addition, during an impact, being fixed, the ribs are deformed so as to provide damping adapted to the normative need.

Selon un mode de réalisation non illustré, la hauteur de la couche de liaison 211 est identique à celles des nervures 201. Ainsi, les nervures 201 et la couche de liaison 211 définissent une deuxième enveloppe intérieure destinée à épouser la forme du crâne de l'utilisateur. Dans ce mode de réalisation, la couche de liaison 211 participe également, avec les nervures, à l'amortissement du choc.According to a non-illustrated embodiment, the height of the connecting layer 211 is identical to that of the ribs 201. Thus, the ribs 201 and the connecting layer 211 define a second inner envelope intended to conform to the shape of the skull of the user. In this embodiment, the connecting layer 211 also participates, with the ribs, shock absorption.

Selon un mode de réalisation et illustré en figures 1 et 4 à 8, la hauteur de la couche de liaison 211 est inférieure à celle des nervures 201. Ainsi, les nervures 201 ménagent un espace 214 entre les nervures 201 et le crâne de l'utilisateur ce qui permet de réduire le poids du casque 1 et d'améliorer son aération.According to one embodiment and illustrated in Figures 1 and 4 to 8 , the height of the connecting layer 211 is lower than that of the ribs 201. Thus, the ribs 201 provide a space 214 between the ribs 201 and the skull of the user which reduces the weight of the helmet 1 and improve its ventilation.

Selon ce mode de réalisation, la couche de liaison 211 s'étend sur tout l'espace situé entre deux nervures 201 adjacentes. Ainsi, cette couche de liaison 211 s'étend le long de toute la longueur de chaque nervure 201. Ainsi, la face interne 104 de la coque externe 100 n'est pas visible lorsque la structure interne 200 est située dans l'enveloppe interne 101. Cela permet de renforcer la coque externe 100 et d'améliorer la résistance du casque aux chocs voire aux perforations.According to this embodiment, the connecting layer 211 extends over the entire space between two adjacent ribs 201. Thus, this connecting layer 211 extends along the entire length of each rib 201. Thus, the inner face 104 of the outer shell 100 is not visible when the internal structure 200 is located in the inner casing 101. This reinforces the outer shell 100 and improves the resistance of the helmet to shocks or perforations.

La hauteur de la couche de liaison 211 entre les nervures est préférentiellement supérieure à huit millimètres en tout point afin d'assurer une bonne tenue et cohésion des nervures entre elles. En dessous, les nervures peuvent s'affaisser.The height of the bonding layer 211 between the ribs is preferably greater than eight millimeters at any point in order to ensure good strength and cohesion of the ribs between them. Below, the ribs can sag.

Selon un mode de réalisation, il peut y avoir localement des zones sans couche de liaison, dans des zones peu susceptibles d'être sollicitées et sans influence sur la tenue de la structure interne. Cela permet d'alléger davantage le casque.According to one embodiment, there may be locally zones without bonding layer, in areas that are unlikely to be stressed and without influence on the strength of the internal structure. This allows to lighten the headphones further.

Selon un mode de réalisation, la couche de liaison 211 s'étend jusqu'au bord inférieur.According to one embodiment, the connecting layer 211 extends to the lower edge.

Comme illustré sur les figures, on prévoit que la couche de liaison 211 présente aux abords immédiats d'une nervure 201 une hauteur croissante à l'approche de cette nervure 201. Ainsi, la couche de liaison 211 forme une dépouille que l'on peut également qualifier de cordon de soudure 212. Cela permet de renforcer le maintien en position de la nervure 201 et la cohésion entre nervures 201 et liant 211 en limitant le poids du casque 1. Ce cordon de soudure 212 apparaît clairement en figures 5 et 6.As shown in the figures, it is expected that the connecting layer 211 has in the immediate vicinity of a rib 201 an increasing height approaching the rib 201. Thus, the connecting layer 211 forms a body that can be removed. also qualify as weld bead 212. This reinforces the holding in position of the rib 201 and the cohesion between ribs 201 and binder 211 by limiting the weight of the helmet 1. This weld bead 212 appears clearly in Figures 5 and 6 .

Selon un mode de réalisation et comme illustré en figure 5, la hauteur de la couche de liaison 211 varie le long de la nervure 201. Ainsi, la hauteur h1 à proximité du bord inférieur 103 est supérieure à la hauteur h2 située en partie supérieure du casque 1. Cela permet de limiter la quantité de matière et donc le poids du casque 1, tout en renforçant les zones qui doivent l'être. De plus, cette répartition reste compatible avec une réalisation du casque par injection du liant.According to one embodiment and as illustrated in figure 5 , the height of the connecting layer 211 varies along the rib 201. Thus, the height h1 near the lower edge 103 is greater than the height h2 located in the upper part of the helmet 1. This allows to limit the amount of material and therefore the weight of the helmet 1, while strengthening the areas that must be. In addition, this distribution remains compatible with an embodiment of the helmet injection binder.

Alternativement, la hauteur de la couche de liaison 211 est homogène entre le sommet 102 et le bord inférieur 103.Alternatively, the height of the connecting layer 211 is homogeneous between the vertex 102 and the lower edge 103.

Selon un mode de réalisation, les nervures 201 sont en EPS. Cela permet de réduire le coût du casque 1. Alternativement, elles sont en EPP, matériau qui présente une limite élastique plus élevée que l'EPS, ce qui permet donc au casque d'encaisser des chocs plus forts avant d'être altéré. Il peut ainsi être réutilisé après avoir subi certains chocs limités.According to one embodiment, the ribs 201 are in EPS. This makes it possible to reduce the cost of the helmet 1. Alternatively, they are made of EPP, a material that has a higher elastic limit than the EPS, which therefore allows the helmet to absorb stronger shocks before being altered. It can be reused after suffering some limited shocks.

EPP et EPS ont également pour avantages d'être hydrophobes. Ils peuvent donc être utilisés sans l'ajout d'une enveloppe d'étanchéité.EPP and EPS also have the advantages of being hydrophobic. They can therefore be used without the addition of a sealing envelope.

De préférence, on choisira pour les nervures 201 en EPP ou en EPS, une densité comprise entre 60 et 100 g/l.Preferably, for the ribs 201 made of EPP or EPS, a density of between 60 and 100 g / l will be chosen.

Alternativement, on choisira pour les nervures 201 du carton ou du papier de préférence ondulés ou du caoutchouc. On prévoit de préférence pour ces modes de réalisation une protection étanche pour préserver les nervures 201 de l'eau.Alternatively, the ribs 201 will preferably be corrugated paperboard or paper or rubber. These embodiments are preferably provided with a tight protection to preserve the ribs 201 of the water.

Alternativement, on choisira pour les nervures 201 du caoutchouc.Alternatively, one will choose for the ribs 201 of the rubber.

Selon un mode de réalisation particulier, toutes les nervures 201 sont faites dans un même matériau et présentent une même densité. Alternativement, certaines nervures ne présentent pas la même densité et/ou ne sont pas faites du même matériau que d'autres nervures. Cela permet d'adapter la résistance et le poids de la structure interne 200. On peut ainsi adapter localement les caractéristiques du casque. Par exemple, en renforçant les parties sensibles. Cela permet d'optimiser également le poids du casque.According to a particular embodiment, all the ribs 201 are made of the same material and have the same density. Alternatively, some ribs do not have the same density and / or are not made of the same material as other ribs. This makes it possible to adapt the strength and the weight of the internal structure 200. It is thus possible to adapt the characteristics of the helmet locally. For example, by strengthening the sensitive parts. This also optimizes the weight of the helmet.

Selon un mode de réalisation, le matériau du liant 211 est également réalisé en EPP ou en EPS sans que cela soit limitatif.According to one embodiment, the material of the binder 211 is also made of EPP or EPS without this being limiting.

Même si le matériau des nervures 201 et le matériau du liant 211 sont de même nature, on peut prévoir une différence de densité entre ces pièces. Par exemple, les nervures 201 ont une densité plus élevée que le liant 211 afin d'assurer une bonne absorption des chocs et un bon maintien du casque 1 sur le crâne. En revanche, avec un liant 211 de densité plus faible, cela permet de réduire le poids du casque 1. Dans ce cas, la densité du liant 211 est comprise entre 10 à 60 g/l de sorte à être inférieure à la densité des nervures 201.Even if the material of the ribs 201 and the material of the binder 211 are of the same nature, it is possible to provide a density difference between these parts. For example, the ribs 201 have a higher density than the binder 211 to ensure good shock absorption and good support of the helmet 1 on the skull. On the other hand, with a binder 211 of lower density, this makes it possible to reduce the weight of the helmet 1. In this case, the density of the binder 211 is between 10 and 60 g / l so as to be less than the density of the ribs. 201.

Alternativement, on choisit pour les nervures 201 et le liant 211 des densités identiques, entre 60 et 100 g/l, et de préférence alors des matériaux identiques. Dans ce mode de réalisation, la couche de liaison 211 présente, préférentiellement, une hauteur significativement inférieure à celle des nervures 201 afin d'alléger le casque 1.Alternatively, for the ribs 201 and the binder 211, identical densities of between 60 and 100 g / l are selected, and preferably identical materials. In this embodiment, the connecting layer 211 preferably has a height significantly lower than that of the ribs 201 in order to lighten the helmet 1.

Typiquement, la hauteur de la couche de liaison 211 sur au moins la moitié de la longueur de la nervure est inférieure à 70% de la hauteur de la nervure 201.Typically, the height of the bonding layer 211 over at least half the length of the rib is less than 70% of the height of the rib 201.

L'invention a pour avantage d'être compatible avec deux technologies de fabrication de casques.The invention has the advantage of being compatible with two helmet manufacturing technologies.

Une première technologie, dite « in-mold », comprend les étapes suivantes. Dans une première étape, on réalise la coque externe 100. Par exemple, on chauffe une plaque en polycarbonate ou un matériau équivalent. Ce peut être un copolymère d'acrylonitrile butadiène styrène (ABS), du lin, des fibres de carbone ou des fibres de verre. On déforme ensuite la plaque selon un galbe. Puis, on découpe les bords. Cette coque externe est souple, très légère et résistante à la perforation. Dans une deuxième étape, on insère la coque externe 100 dans un moule puis on injecte un même matériau à l'intérieur de la coque externe pour former à la fois la structure interne 200 comprenant les nervures 211 et la couche de liaison 211. Dans ce cas, la structure interne 200 et le liant 211 forment une pièce injectée monolithique, présentant une grande cohésion et une forte robustesse. Le casque ainsi réalisé présente une très bonne tenue entre ses éléments constitutifs et est particulièrement léger. De plus, ce mode de réalisation permet de réduire les étapes d'assemblage. On peut prévoir, avant la deuxième étape, l'ajout d'un revêtement sur la face interne de la coque pour améliorer l'adhérence entre celle-ci et les pièces internes.A first technology, called "in-mold", comprises the following steps. In a first step, the outer shell 100 is made. For example, a polycarbonate plate or an equivalent material is heated. It can be a copolymer of acrylonitrile butadiene styrene (ABS), flax, carbon fibers or glass fibers. The plate is then deformed according to a curve. Then, cut the edges. This outer shell is flexible, very light and resistant to perforation. In a second step, the outer shell 100 is inserted into a mold and then the same material is injected inside the outer shell to form both the internal structure 200 comprising the ribs 211 and the bonding layer 211. In this case, case, the internal structure 200 and the binder 211 form a monolithic injected part, having great cohesion and strong strength. The helmet thus produced has a very good hold between its constituent elements and is particularly light. In addition, this embodiment makes it possible to reduce the assembly steps. It is possible, before the second step, to add a coating on the inner face of the shell to improve the adhesion between it and the internal parts.

Alternativement, la partie interne est réalisée par bi-injection, ce qui permet l'utilisation de matériau différent entre les nervures et le liant.Alternatively, the inner part is made by bi-injection, which allows the use of different material between the ribs and the binder.

Selon une variante, lors de la deuxième étape, on insère la structure interne 200, préalablement réalisée, à l'intérieur de la coque externe 100, comme illustré en figure 3. On insère alors ce sous-ensemble composé de la coque externe 100 et de la structure interne 200 dans le moule. Ensuite, on injecte le liant 211 pour solidariser la structure interne 200 avec la coque externe 100. Là aussi, le casque réalisé présente une très bonne tenue entre ses éléments constitutifs et est particulièrement léger. Ce mode de réalisation intègre une étape d'assemblage supplémentaire par rapport au mode de réalisation précédent. Cependant, il permet plus de possibilités sur la réalisation de la structure interne 200 que nous verrons par la suite.According to a variant, during the second step, the internal structure 200, previously made, is inserted inside the outer shell 100, as illustrated in FIG. figure 3 . This subassembly consisting of the outer shell 100 and the internal structure 200 is then inserted into the mold. Then, the binder 211 is injected to secure the internal structure 200 with the outer shell 100. Again, the helmet produced has a very good resistance between its constituent elements and is particularly light. This embodiment incorporates an additional assembly step with respect to the previous embodiment. However, it allows more possibilities on the realization of the internal structure 200 that we will see later.

Une deuxième technologie compatible consiste à réaliser, dans une première étape, la coque externe par injection plutôt que par déformation. La coque externe est alors plus rigide, un peu plus lourde et présente une bonne tenue et résistance à la perforation. Le matériau utilisé est préférablement de l'acrylonitrile butadiène styrène (ABS). Alternativement on pourra prévoir les autres matériaux mentionnés précédemment pour la coque externe 100.A second compatible technology is to perform, in a first step, the outer shell by injection rather than by deformation. The outer shell is then stiffer, a little heavier and has good strength and resistance to perforation. The material used is preferably acrylonitrile butadiene styrene (ABS). Alternatively, the other materials mentioned above for the outer shell 100 may be provided.

La structure interne peut être solidarisée à la coque externe par injection, de manière analogue aux assemblages décrits précédemment. Alternativement, la structure interne peut être assemblée à la coque interne par collage ou autre technique, le liant étant l'élément adhésif entre la structure interne et la coque externe.The internal structure may be secured to the outer shell by injection, similar to the assemblies described above. Alternatively, the internal structure can be assembled to the inner shell by gluing or other technique, the binder being the adhesive element between the internal structure and the outer shell.

La structure interne 200 peut être réalisée de manière indépendante.The internal structure 200 can be made independently.

Selon un mode de réalisation illustré en figure 2, la structure interne 200 est réalisée par un assemblage des différentes nervures. Chaque nervure présente une première extrémité 204 destinée à être disposée au niveau du sommet 102. Cette première extrémité 204 comporte un organe de fixation 206 pour assurer la fixation de la nervure 201, soit directement à d'autres nervures (mode de réalisation non illustré), soit à une pièce formant un support 210 commun de liaison pour l'ensemble des nervures 201 (comme illustré en figure 2).According to an embodiment illustrated in figure 2 , the internal structure 200 is made by an assembly of the different ribs. Each rib has a first end 204 intended to be disposed at the top 102. This first end 204 comprises a fastener 206 to secure the rib 201, or directly to other ribs (embodiment not shown) or to a piece forming a common connecting support 210 for all the ribs 201 (as illustrated in FIG. figure 2 ).

Dans ce dernier mode de réalisation, le support 210 présente un corps 213 en forme de tube ménageant un espace 214 creux pour alléger le casque 1. La section du tube est de préférence circulaire ou ovale car cela permet une bonne répartition des efforts sur les nervures. Alternativement, la section est polygonale et/ou pleine. Sur les figures, il apparaît qu'une fois positionnées, les nervures 201 définissent un logement 209 destiné à recevoir le support 210. Ce corps 213 comporte également des organes de fixation 215 complémentaires de ceux 206 des nervures 201. Sur l'exemple illustré, ces organes de fixation 215 complémentaires forment des créneaux conformés chacun pour accueillir un téton 216 porté par la première extrémité 204 de la nervure 201. De préférence, les extrémités supérieure et inférieure du support 210 présentent des créneaux sur toute leur périphérie et chacune des premières extrémités 204 des nervures 201 présentent deux tétons 216. Les tétons 216 d'une même nervure 201 sont configurés pour s'insérer chacun dans un créneau découpé respectivement dans les extrémités supérieure et inférieure du corps 213.In this last embodiment, the support 210 has a body 213 in the form of a tube providing a hollow space 214 to lighten the helmet 1. The section of the tube is preferably circular or oval because it allows a good distribution of efforts on the ribs . Alternatively, the section is polygonal and / or full. In the figures, it appears that once positioned, the ribs 201 define a housing 209 for receiving the support 210. This body 213 also comprises fasteners 215 complementary to those 206 of the ribs 201. In the illustrated example, these complementary fixing members 215 form crenels each configured to receive a pin 216 carried by the first end 204 of the rib 201. Preferably, the upper and lower ends of the support 210 have slots around their entire periphery and each of the first ends 204 of the ribs 201 have two pins 216. The pins 216 of the same rib 201 are configured to fit each into a slot carved respectively in the upper and lower ends of the body 213.

Les figures 7 et 8 illustrent clairement le support 210 formant une pièce commune de fixation pour l'ensemble des nervures 201. Sur ces figures, l'épaisseur du corps 213 apparaît en section dans l'évidement formé entre les deux tétons 216 de chaque nervure 201. Le support 210 commun forme ainsi une clef de voûte pour l'ensemble de la structure interne 200.The Figures 7 and 8 clearly illustrate the support 210 forming a common fastener for all the ribs 201. In these figures, the thickness of the body 213 appears in section in the recess formed between the two pins 216 of each rib 201. The support 210 The common shape thus forms a keystone for the whole of the internal structure 200.

Ce mode de réalisation a pour avantage d'être particulièrement facile à fabriquer puisqu'il ne nécessite pas de moule d'injection. Il suffit simplement de découper par exemple au laser ou au jet d'eau des nervures 201 puis de les assembler entre elles ou au support 210 commun. Ce type de découpe est très aisément modifiable et permet ainsi de personnaliser simplement et à bas prix la forme des nervures 201.This embodiment has the advantage of being particularly easy to manufacture since it does not require an injection mold. It suffices to simply cut out, for example by laser or water jet, ribs 201 and then to assemble them together or to the common support 210. This type of cut is very easily modifiable and thus makes it possible to simply and inexpensively customize the shape of the ribs 201.

On peut donc personnaliser facilement le volume accueillant la tête de l'utilisateur, par exemple pour proposer une gamme étendue de casques s'adaptant à de nombreuses morphologies de crâne. Alternativement ou en combinaison, on peut également personnaliser facilement le profil externe pour proposer une gamme étendue de formes de coques.It is therefore easy to customize the volume accommodating the head of the user, for example to provide an extended range of helmets adapting to many skull morphologies. Alternatively or in combination, one can also easily customize the external profile to offer a wide range of shell shapes.

Par ailleurs, ce mode de réalisation permet d'utiliser facilement des matériaux différents afin d'optimiser le poids et la résistance du casque. On peut par exemple avoir des matériaux différents pour le support 210 et pour les nervures 201. On peut également avoir des matériaux différents selon les nervures, typiquement selon leur positionnement autour du crâne comme indiqué précédemment.Furthermore, this embodiment makes it easy to use different materials to optimize the weight and strength of the helmet. For example, it is possible to have different materials for the support 210 and for the ribs 201. It is also possible to have different materials depending on the ribs, typically according to their positioning around the skull as indicated above.

Le liant est alors mis en place entre les nervures 201 pour former la couche de liaison 211.The binder is then placed between the ribs 201 to form the bonding layer 211.

On prévoit de préférence un outillage ou un matériau résorbable pour maintenir les nervures 201 en position avant et lors de l'injection de la couche de liaison 211 entre les nervures 201.A resorbable tool or material is preferably provided to maintain the ribs 201 in the forward position and during the injection of the bonding layer 211 between the ribs 201.

Selon un mode de réalisation illustré en figure 8, des orifices 208 sont ménagés dans les nervures. Dans cet exemple, ces orifices 208 sont situés à proximité de la face interne 104 de la coque externe 100. Ils sont typiquement situés à une distance comprise entre 1 et 10 mm de cette dernière. Leur diamètre est supérieur à 3 mm de manière à ce que lors de l'injection du matériau liant 211, ce dernier pénètre dans les orifices 208. Lorsque le matériau liant 211 se fige, il renforce alors la cohésion entre les nervures 201 et la couche de liant 211 située entre ces dernières ce qui améliore la robustesse du casque 1.According to an embodiment illustrated in figure 8 , orifices 208 are formed in the ribs. In this example, these orifices 208 are located near the inner face 104 of the outer shell 100. They are typically located at a distance of between 1 and 10 mm from the latter. Their diameter is greater than 3 mm so that during the injection of the binder material 211, the latter enters the orifices 208. When the binder material 211 freezes, it then strengthens the cohesion between the ribs 201 and the layer binder 211 located between them which improves the strength of the helmet 1.

Par ailleurs, et quelle que soit la technologie de fabrication du casque, on peut prévoir des découpes 207 sur le profil interne 203 des nervures 201. Ainsi, le profil interne 203 des nervures ne forme pas une ligne en appui continu avec le crâne. Cela permet d'augmenter l'aération du casque 1, cela permet surtout aux portions de nervures 201 situées entre les découpes 207 de se déformer en flexion et/ou en translation afin d'améliorer l'absorption des efforts transmis depuis la coque externe 100 vers le crâne.Moreover, and whatever the helmet manufacturing technology, it is possible to provide cutouts 207 on the internal profile 203 of the ribs 201. Thus, the internal profile 203 of the ribs does not form a line in continuous contact with the skull. This makes it possible to increase the aeration of the helmet 1, this allows especially the portions of ribs 201 situated between the cuts 207 to deform in flexion and / or in translation in order to improve the absorption of the forces transmitted from the outer shell 100 to the skull.

Typiquement la profondeur de la découpe 207, mesurée selon la même direction que la hauteur « h » de la nervure 201, est supérieure à 30% de la hauteur de la nervure dans une zone sans découpe 207.Typically the depth of the cutout 207, measured in the same direction as the height "h" of the rib 201, is greater than 30% of the height of the rib in a cut-free zone 207.

Après réalisation de la structure interne dans la coque externe, on finalise le casque par ajout de sangle. De préférence on ajoute une coiffe de confort entre le crâne et les nervures.After completion of the internal structure in the outer shell, the helmet is completed by adding strap. Preferably a comfort cap is added between the skull and the ribs.

Selon un mode de réalisation, le casque comprend un bandeau de liaison qui relie les nervures à proximité de leur deuxième extrémité 205. Cela permet d'assurer un meilleur maintien de la structure interne 200 sur la coque externe 100. Cela permet également d'éviter l'affaissement latéral des deuxièmes extrémités 205. De préférence, le bandeau de liaison s'applique sur tout le pourtour de l'enveloppe interne 101, de préférence au niveau du bord inférieur 103. De préférence, il est formé par le matériau liant, lors de la même étape que la réalisation de la couche de liaison 211.According to one embodiment, the helmet comprises a connecting strip which connects the ribs near their second end 205. This makes it possible to ensure a better maintenance of the internal structure 200 on the outer shell 100. This also makes it possible to avoid the lateral collapse of the second ends 205. Preferably, the connecting strip is applied all around the inner casing 101, preferably at the lower edge 103. Preferably, it is formed by the binder material, during the same step as the production of the linking layer 211.

L'invention n'est pas limitée aux modes de réalisations précédemment décrits et s'étend à tous les modes de réalisation couverts par les revendications.The invention is not limited to the previously described embodiments and extends to all the embodiments covered by the claims.

REFERENCESREFERENCES

1.1.
CasqueHelmet
100.100.
Coque externeOuter shell
101.101.
Enveloppe interneInner envelope
102.102.
SommetMountain peak
103.103.
BordEdge
104.104.
Face interneInternal face
200.200.
Structure externeExternal structure
201.201.
NervureRib
202.202.
Profil externeExternal profile
203.203.
Profil interneInternal profile
204.204.
Première extrémitéFirst end
205.205.
Deuxième extrémitéSecond end
206.206.
Organe de fixationFixing member
207.207.
Découpecutting
208.208.
OrificeOrifice
209.209.
LogementHousing
210.210.
SupportSupport
211.211.
Couche de liaisonBond layer
212.212.
Ligne de soudureWelding line
213.213.
Corps annulaireRing body
214.214.
EspaceSpace
215.215.
Organe complémentaire de fixationComplementary fastener
216.216.
Tétonstud

Claims (10)

  1. Helmet (1) comprising:
    - an outer shell (100) having a crown (102) and defining an internal envelope (101) bounded by a lower edge (103),
    - an internal structure (200) arranged inside the internal envelope (101), the internal structure (200) comprising a plurality of ribs (201), each rib (201) extending from the crown (102) to the lower edge (103)
    in which the internal structure (200) is secured to the outer shell (100) by a connecting layer (211), and
    characterized in that
    the connecting layer permanently secures at least one rib to the outer shell.
  2. Helmet (1) according to Claim 1, in which the connecting layer (211) is injected.
  3. Helmet (1) according to Claim 1, in which the connecting layer (211) connects at least two adjacent ribs (201) to one another.
  4. Helmet (1) according to any one of the preceding claims, in which the height of the connecting layer (211), at least locally, is less than the height of the ribs (201).
  5. Helmet (1) according to any one of the preceding claims, in which the connecting layer (211) is made of a material different to that of the ribs (201).
  6. Helmet (1) according to any one of the preceding claims, in which the density of the material forming the connecting layer (211) is different to the density of the material forming at least certain ribs (201).
  7. Helmet (1) according to the preceding claim, in which at least certain ribs (201) each match the shape of the internal envelope (101) along a portion of a meridian of which the pole is the crown (102) of the internal envelope (101).
  8. Helmet (1) according to any one of the preceding claims, in which the thickness (e) of at least certain ribs (201) is less than or equal to its height (h).
  9. Helmet (1) according to any one of the preceding claims, in which the internal structure (200) is an assembly of independent parts, each rib forming an independent part.
  10. Helmet (1) according to any one of the preceding claims, in which each rib (201) has a first end (204) and a second end (205), the first end (204) being arranged at the crown (102) of the outer shell (10), all of the second ends (205) being connected to one another by a connecting strip.
EP14002555.2A 2013-08-05 2014-07-23 Helmet Not-in-force EP2845500B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1301883A FR3009167B1 (en) 2013-08-05 2013-08-05 HELMET

Publications (2)

Publication Number Publication Date
EP2845500A1 EP2845500A1 (en) 2015-03-11
EP2845500B1 true EP2845500B1 (en) 2017-06-28

Family

ID=49779958

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14002555.2A Not-in-force EP2845500B1 (en) 2013-08-05 2014-07-23 Helmet

Country Status (3)

Country Link
US (1) US20150033456A1 (en)
EP (1) EP2845500B1 (en)
FR (1) FR3009167B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3023679A1 (en) * 2014-07-18 2016-01-22 Salomon Sas DAMPING HELMET
EP3539402A1 (en) * 2018-03-12 2019-09-18 Jörn Steffens Shock-absorbing liner for a protective helmet and protective helmet comprising said liner
WO2020021063A1 (en) * 2018-07-26 2020-01-30 Patrick Pedevilla Impact protection structure

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994020A (en) * 1975-06-05 1976-11-30 The Kendall Company Protective helmet with liner means
EP2111768A1 (en) * 2008-04-24 2009-10-28 Salomon S.A.S. Helmet with personalisation means allowing the internal volume to be changed

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632173A (en) * 1948-07-10 1953-03-24 Lyon George Albert Plastic helmet
US3478365A (en) * 1967-08-21 1969-11-18 Tibor Joseph Varga Protective helmet for babies
US3425061A (en) * 1967-09-08 1969-02-04 Daniel D Webb Energy absorbing helmet shell
US3462763A (en) * 1967-10-03 1969-08-26 Richard C Schneider Impact absorbing protective headgear
US3500473A (en) * 1967-12-14 1970-03-17 Wolverine World Wide Inc Safety headgear assembly
US3600714A (en) * 1969-03-19 1971-08-24 Hop N Gator Inc Hydraulic helmet
US3906546A (en) * 1973-04-16 1975-09-23 Elwyn R Gooding Hand gun bullet proof protective headgear
US4345338A (en) * 1979-10-05 1982-08-24 Gentex Corporation Custom-fitted helmet and method of making same
US4432099A (en) * 1982-07-09 1984-02-21 Gentex Corporation Individually fitted helmet liner
US4745637A (en) * 1987-03-23 1988-05-24 Steele Richard J Head protector
US5099523A (en) * 1988-11-21 1992-03-31 Bell Bicycles, Inc. Reinforced expanded plastic helmet construction
US5481762A (en) * 1989-01-25 1996-01-09 Giro Sport Design, Inc. Helmet having a planar-molded infrastructure
US5175889A (en) * 1990-08-29 1993-01-05 Riddell, Inc. Inflatable liner for protective headgear
US5181279A (en) * 1991-11-25 1993-01-26 Ross Dale T Cushioned helmet
US5687426A (en) * 1993-02-25 1997-11-18 Elasto Form Bicycle helmet
US5745923A (en) * 1996-12-02 1998-05-05 Katz; Jeffrey P. Impact absorbing protective apparatus for the frontal temporal and occipital basilar skull
US5819318A (en) * 1997-10-16 1998-10-13 Steven Tse Head covering with adjustable sunshade visor and inside ventilation
AU5909299A (en) * 1998-09-03 2000-03-27 Mike Dennis Body-contact cushioning interface structure
US6560787B2 (en) * 2000-08-31 2003-05-13 Irma D. Mendoza Safety helmet
US6530092B2 (en) * 2001-05-09 2003-03-11 Southern Impact Research Center, Llc Fitting and comfort system with inflatable liner for helmet
DE10319500A1 (en) * 2002-05-01 2004-01-15 Riddell Inc., Chicago Football helmet, has liner connector adapted such that impact-absorbing liner is bound with portion of inner wall face of shell
US6694529B1 (en) * 2002-11-25 2004-02-24 Tzu Tao Chiu Helmet structure
NO323512B1 (en) * 2004-04-07 2007-06-04 Crescendo As Stop mold for making a helmet lining.
US8039078B2 (en) * 2004-08-26 2011-10-18 Intellectual Property Holdings, Llc Energy-absorbing pads
US7904971B2 (en) * 2005-05-19 2011-03-15 Mine Safety Appliances Company Protective padding and protective padding systems
US7802320B2 (en) * 2005-06-30 2010-09-28 Morgan Don E Helmet padding
US7870617B2 (en) * 2006-04-05 2011-01-18 Butler Alan M Protective helmet with adjustable support
FR2942111B1 (en) * 2009-02-13 2011-02-25 Kuji Sports Ltd DEFORMABLE PROTECTION HELMET
US8001622B1 (en) * 2009-03-26 2011-08-23 Remington Products Company Pad for helmet or the like
US8726424B2 (en) * 2010-06-03 2014-05-20 Intellectual Property Holdings, Llc Energy management structure
US8756719B2 (en) * 2011-03-17 2014-06-24 Waldemar Veazie Method and apparatus for an adaptive impact absorbing helmet system
US8566968B2 (en) * 2011-07-01 2013-10-29 Prostar Athletics Llc Helmet with columnar cushioning
US9056983B2 (en) * 2011-09-09 2015-06-16 Purdue Research Foundation Dynamic load-absorbing materials and articles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994020A (en) * 1975-06-05 1976-11-30 The Kendall Company Protective helmet with liner means
EP2111768A1 (en) * 2008-04-24 2009-10-28 Salomon S.A.S. Helmet with personalisation means allowing the internal volume to be changed

Also Published As

Publication number Publication date
EP2845500A1 (en) 2015-03-11
FR3009167A1 (en) 2015-02-06
US20150033456A1 (en) 2015-02-05
FR3009167B1 (en) 2016-01-01

Similar Documents

Publication Publication Date Title
EP2395865B1 (en) Deformable safety helmet
EP2974612B1 (en) Damping helmet
CA2651129C (en) Pressure-sealed floor for aircraft
EP2380538B1 (en) Protective goggles for the practice of outdoor sports
FR2615404A1 (en) DISTRIBUTED DAMPING SKI
FR2611518A1 (en) DISTRIBUTED DAMPING SKI
EP2845500B1 (en) Helmet
FR2687921A1 (en) METHOD FOR MANUFACTURING A GOLF CLUB HEAD COMPRISING A RECOVERED STRIKING FACE
EP2380536A1 (en) Protective goggles for the practice of outdoor sports
EP2380537A1 (en) Protective goggles for the practice of outdoor sports
FR3020560A1 (en) HELMET ADAPTED TO THE CONSTRAINTS OF ITS USE
FR2615406A1 (en) DISTRIBUTED DAMPING SKI
EP3305378B1 (en) Racquet, in particular structure of padel racquet
EP3231307B1 (en) Sports helmet
EP3175728B1 (en) Multi-material protective helmet
EP3225288A1 (en) Racquet, in particular padel racquet structure
EP1740066B1 (en) Improvement to safety helmet
FR3054413B1 (en) HELMET WITH A DAMPING CAP
EP0726084A1 (en) Protection device for tubular elements, and element thus produced
WO2017051093A1 (en) Electronic frame for optical device and optical device comprising such a frame
WO2003088777A2 (en) Shoe bottom
FR3102648A1 (en) Helmet including removable outer protective shell
FR3051330A1 (en) HELMET ADJUSTED
WO2017042464A1 (en) Shock absorber device
EP2602008B1 (en) Board for snow gliding

Legal Events

Date Code Title Description
17P Request for examination filed

Effective date: 20140723

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

R17P Request for examination filed (corrected)

Effective date: 20150826

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20170123

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 904050

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170715

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602014011106

Country of ref document: DE

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170928

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170929

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20170628

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 904050

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170628

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170928

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171028

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602014011106

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170731

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170723

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170731

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20180329

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20170731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170723

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20180723

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180723

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20140723

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170628

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20210611

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20220608

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220731

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602014011106

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20240201