EP2395865B1 - Deformable safety helmet - Google Patents

Deformable safety helmet Download PDF

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Publication number
EP2395865B1
EP2395865B1 EP10707090A EP10707090A EP2395865B1 EP 2395865 B1 EP2395865 B1 EP 2395865B1 EP 10707090 A EP10707090 A EP 10707090A EP 10707090 A EP10707090 A EP 10707090A EP 2395865 B1 EP2395865 B1 EP 2395865B1
Authority
EP
European Patent Office
Prior art keywords
shell
damping elements
helmet
head
elements
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
EP10707090A
Other languages
German (de)
French (fr)
Other versions
EP2395865A1 (en
Inventor
Rémi FINIEL
Shaw Kaake
Ku Cheng-Huei
Xiang Zl Ping
Roger Davis
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.)
KUJI SPORTS Ltd
Original Assignee
KUJI SPORTS Ltd
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 KUJI SPORTS Ltd filed Critical KUJI SPORTS Ltd
Publication of EP2395865A1 publication Critical patent/EP2395865A1/en
Application granted granted Critical
Publication of EP2395865B1 publication Critical patent/EP2395865B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • A42B3/14—Suspension 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
    • A42B3/14—Suspension devices
    • A42B3/145—Size adjustment devices
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • 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
    • A42B3/06—Impact-absorbing shells, e.g. of crash helmets
    • A42B3/062—Impact-absorbing shells, e.g. of crash helmets with reinforcing means
    • A42B3/063—Impact-absorbing shells, e.g. of crash helmets with reinforcing means using layered structures
    • A42B3/064—Impact-absorbing shells, e.g. of crash helmets with reinforcing means using layered structures with relative movement between layers

Definitions

  • the invention relates to a protective helmet defining an open cavity on the outside through an opening for the engagement of the head in the cavity, comprising an outer shell in one piece, a plurality of elements dampers reported inside the shell, and connecting means for connecting the damping elements to each other.
  • a protective helmet of this type is known from the document US6665884B1 , which provides a rigid shell that deforms only under the effect of an external impact.
  • Side, front and top damping elements are attached to the inside of the hull.
  • Each of the lateral damping elements is subdivided into a lateral part fixed to the shell and a rear part freely articulated to the lateral part.
  • Each side damper element is therefore partially attached to the hull.
  • the free ends of the rear parts are interconnected by an elastic band.
  • the rear parts and the elastic band are located at a distance from the inner face of the shell. This results in the presence of dead volumes interposed between the shell and the damping elements, which is not an optimal protection.
  • the front damping element is completely dissociated from the lateral damping elements, with the interposition of empty intervals at which no clamping is applied to the head in position in the helmet cavity.
  • the tightening of the head is realized only laterally and from behind, which implies a questionable helmet and protection.
  • the clamping function is performed by the rear elastic band and the compressibility of the lateral damping elements.
  • the hull located at a distance from these bodies with interposition of dead volumes as indicated above does not participate in tightening the head and has no possible adaptation to the morphology of the head of the user. Only the lateral elements adapt to the morphology of the head.
  • shocks on a helmet during a fall are rarely purely perpendicular to the hull and it often happens that a tangential component to the hull generates a violent torque on the head and then on the neck.
  • These sudden rotations of the head cause internal lesions on the connecting elements of the brain to the cranial box.
  • the helmets of the prior art do not protect this phenomenon, and are not completely satisfactory on the issue of safety.
  • the object of the invention is to provide a protective helmet for optimizing comfort, hold, aesthetics and safety regardless of the morphology of the head of the user of the helmet.
  • a helmet according to the appended claims, in particular by the fact that the damping elements are constituted by a rigid foam material, the shell is made of an elastically deformable material, and that the face turned towards the the shell of the damping elements disposed at the periphery of the opening is integrally attached against the inner face of the shell to form an inner support belt completely in contact with the shell, the helmet being arranged so that a position of the head in the cavity causes a deformation of the support belt by elastic deformation of the shell in according to the morphology of the head, generating a permanent tightening of the support belt against the substantially uniform head along the support belt.
  • the damping elements arranged at the periphery of the opening are for example positioned side by side so as to form a support belt bordering the entire periphery of the opening in order to avoid empty intervals along the periphery of the opening. the opening.
  • As the side facing the shell damping elements periphery of the opening is integrally reported against the shell, it results in the absence of dead volumes interposed between the shell and the damping elements, giving optimum protection.
  • the shell is designed to elastically deform in flexion when the head is in position in the helmet cavity to generate, by elastic return of the shell to its natural configuration before placing the head in the cavity, tightening the belt support against the head. The shell therefore adapts automatically to the morphology of the user's head.
  • a support belt thus formed and arranged so as to deform when the head is in position in the helmet cavity, by deformation of the shell against which it is completely attached, has the effect of tightening the head permanently and uniformly around the waist, which implies improved helmet wear and protection.
  • the protective helmet 10 Figures 1 and 2 delimits a cavity open to the outside through an opening 11 for the engagement of the head within the cavity.
  • the helmet 10 has an outer shell 12 in one piece and devoid of nicks.
  • a plurality of damping elements 13 is attached to the inside of the shell 12 so as to constitute a damping cap covering substantially all of the inner face of the shell 12.
  • Connecting means may be provided to connect the elements dampers 13 between them, but such connecting means are not essential. It is possible to provide that each damping element 13 is attached to the shell without connection with the other damping elements 13.
  • notch a local elongated removal of material over the entire thickness of the helmet (that is to say over the entire thickness of the calotin and over the entire thickness of the shell) arranged so to debouch on the edges of the helmet.
  • the shell 12 may include local ventilation holes having a closed contour, that is to say, not leading to the edges of the helmet.
  • the damping elements 13 are constituted by expanded polystyrene (EPS) or any other substantially rigid foam which has an economic interest comparable to that of the EPS or interesting damping properties.
  • the shell 12, for its part, is made of an elastically deformable material, such as a thermoplastic polymer material, such as polycarbonate, acrylonitrile butadiene styrene (or ABS), polystyrene, glycolized polyethylene terephthalate (or PETG). ), polyvinyl chloride (or PVC).
  • the choice of the material of the shell 12 is such that the shell 12 has a satisfactory resistance to external shocks and that the bending modulus of the material is between 1500 and 4500 MPa.
  • the thickness of the outer shell 12 is for example between 0.5 and 3 mm, depending in particular on the modulus of elasticity.
  • the material constituting the shell 12 also has a tensile elongation at break characteristic which is preferably greater than 10%.
  • the connecting means between the damping elements 13 can be made in any way, and are for example designed to allow relative movements between the damping elements 13.
  • a first solution consists in using a single structure 14 connecting all the damping elements 13 to each other.
  • the cushioning cap consists of an upper damping element around which is distributed angularly a plurality of lateral damping elements, front and rear
  • the single structure 14 may for example take the form of a spider whose head is attached to the upper damping element and each leg ensures the connection between the upper damping element and a peripheral damping element.
  • the top, side, front and rear damping elements come from overmoulding on the single structure 14.
  • the structure single 14 is not overmoulded, but it is trapped between the damping elements 13 and the inner face of the outer shell 12.
  • each connecting member provides the connection between the upper damping element and a peripheral damping element.
  • each connecting member takes the form of a loop 15 formed by the closure on itself of a textile tape or Velcro® self-gripping material. One end of the loop 15 passes through a through hole in the top damping member, and the opposite end passes through a through hole of the bonded peripheral damping member.
  • each connecting member is formed by an insert 16 in two axially offset parts. Each part is intended to cooperate with either the upper damping element or with a peripheral damping element, and for this purpose comprises a plurality of fir tree-type return tabs.
  • the side facing the shell 12 of the damping elements 13 disposed at the periphery of the opening 11 is integrally attached against the inner face of the shell 12 to form an inner support belt bordering the periphery of the opening and completely in contact with the hull.
  • the face facing the shell 12 of each damper element 13 constituting the support belt is fully in contact with the inner face of the shell 12 when the head of the user is in position in the cavity of the helmet.
  • the damping elements 13 arranged at the periphery of the opening 11 can be positioned side by side or placed at a negligible distance of the order of a few millimeters.
  • the support belt has a ring shape internally defining the contour of the opening 11. Externally, the support belt is completely in contact with the inner face of the shell 12, ensuring the absence of interposed dead volumes between the shell 12 and damping elements 13 constituting the belt to provide optimum protection.
  • the shape, the dimensions and the thickness of the shell 12, the thickness of the damping elements 13 constituting the support belt, are chosen so that the internal dimensions of the support belt (delimiting the periphery of the opening 11) are perfectly adjusted to the expected perimeter of the head in the intended contact area of the head.
  • the helmet is thus arranged so that a positioning of the head in the helmet cavity causes a deformation of the support belt resulting from an elastic deformation in flexion of the shell, generating by elastic return of the shell towards its configuration natural (before positioning the head in the helmet cavity) a permanent tightening of the support belt against the substantially uniform head along the support belt.
  • the attachment of the damping cap on the inner face of the shell 12 can be practiced by fixing the shell at least one damping element 13 of the calotin.
  • Such fastening means may be designed to allow a slight sliding between the shell 12 and the damping elements 13 fixed. These slight glides between the damping elements 13 and the shell 12, as well as the movements between the damping elements 13, can generate potentially unpleasant noises against which it is possible to act by covering the inner face of the shell and / or the elements finishers of a felt-type coating, spray, silicone ...
  • the helmet 10 comprises means for integrally attaching to the shell 12 the constituent damping elements of the support belt so that the support belt is completely secured. of the inner face of the shell 12. It should then be provided, preferably, that the means for integrally attaching to the shell 12 the constituent damping elements of the support belt allow a slight sliding between the shell 12 and the damping elements set. This characteristic can be obtained by using hook-and-loop fastening means of the Velcro® type or of the cooperating loop / hook type, and has the advantage of a better adaptation of the damping elements to the morphology of the head.
  • compressible elements 17 may be arranged on the face opposite to the face fixed to the shell 12 of the constituent damping elements of the support belt.
  • Such compressible elements 17 may cover all or part of the periphery of the support belt, and are made by a flexible and resilient foam, for example ethylene vinyl acetate (EVA), reported or provided during the manufacture of the damping elements of the support belt.
  • EVA ethylene vinyl acetate
  • Such compressible elements 17 have the function of creating a complementary belt which makes it possible to position inside a helmet provided for a given head perimeter, a head having an upper perimeter by deformation of the compressible elements 17.
  • filling elements may be arranged to fill the interstices between the damping elements 13, on all or part of the damping cap.
  • Such filling elements may be made of any flexible and resilient material adapted, for example ethylene vinyl acetate (EVA).
  • the filler elements disposed between the damping elements 13 may be constituted by spacer elements 18.
  • spacers 18 may be constituted by resilient connectors adopting a general V-shape which aim to maintain permanently a minimum space at rest between each of the damping elements 13.
  • This minimum space can temporarily decrease, until it returns to its natural dimension by elastic return of the connectors towards their natural configuration of rest when the external forces cease.
  • This embodiment is particularly advantageous in the absence of the compressible elements 17.
  • the spacer elements 18 have a first advantage of ensuring the constant maintenance of a plating effect of the damping elements 13 against the inner face of the shell 12, eliminating any mobility of the elements 13 especially as the helmet is not used. They also make it easier to deform the assembly formed by the shell and the segmented bonnet by promoting sliding. Finally, they make it possible to eliminate the noises and creations induced by the contact between the elements 13 with each other and with respect to the shell 12.
  • the spacer elements 18 may be obtained by thermoforming or by injecting material (for example PE or PP).
  • the helmet 10 may further comprise a chinstrap connected at its ends to two opposing damping elements each belonging to the support belt.
  • FIGs 7 to 10 are intended to illustrate the different shape variants that can take the damping elements 13 cushioning cap.
  • a top damping element is connected to a plurality of lateral damping elements, front and rear, arranged at the periphery of the summit element.
  • the figure 9 is a variant of the figure 10 , wherein the peripheral damping elements are subdivided into two independent elements offset towards the bottom of the cavity.
  • Figures 7 and 8 represent with a distribution density respectively large and smaller, a cap where the damping elements 13 are hexagonal and distributed uniformly over the entire inner face of the shell 12.
  • the set of helmet variants described above have the advantage of a high quality of ventilation inside the helmet. Indeed, the heat emanating from the head of the user is mainly radiation on the circumference of the skull. Slits or interstices between the elements 13 create an air circulation network that allows efficient removal of heat and moisture. This effect can be enhanced if the shell 12 is provided with holes opening outwards and facilitating the creation of a variable ventilation air flow depending on the mobility of the user.
  • the previously described embodiments in which the lateral damping elements 13 are floating make it possible to absorb a portion of the energy by sliding and pivoting between the head and the shell in the case of tangential components of forces. This displacement of a few tens of millimeters is essential to allow to dampen the stress peak and stay below the threshold of lesions of the brain. In the case a greater effort, a sliding in the plane of the support belt, between the head and the helmet is possible to damp the shock wave. This possibility is allowed thanks to the free deformation of the perimeter of the support belt.
  • the attachment means of the upper damping element 13 and the shell 12 may serve as a fuse and allow at least partial separation of the two elements, allowing a greater rotation of the shell relative to the cap, making the almost zero effort transmission.
  • a fixing means may be made with glue, for example of the "hot melt glue” type, or a magnet or Velcro® type self-gripping material.
  • the hull 12 can not be detached because the jugular or equivalent under the chin of the user guarantees the unity of the assembly.

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  • Helmets And Other Head Coverings (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

. Domaine technique de l'invention. Technical field of the invention

L'invention est relative à un casque de protection délimitant une cavité ouverte sur l'extérieur au travers d'une ouverture pour l'engagement de la tête dans la cavité, comportant une coque externe d'un seul tenant, une pluralité d'éléments amortisseurs rapportés à l'intérieur de la coque, et des moyens de liaison pour relier les éléments amortisseurs entre eux.The invention relates to a protective helmet defining an open cavity on the outside through an opening for the engagement of the head in the cavity, comprising an outer shell in one piece, a plurality of elements dampers reported inside the shell, and connecting means for connecting the damping elements to each other.

État de la techniqueState of the art

Un casque de protection de ce type est connu du document US6665884B1 , qui prévoit une coque rigide ne se déformant que sous l'effet d'un impact extérieur. Des éléments amortisseurs latéraux, frontaux et sommitaux sont rapportés à l'intérieur de la coque. Chacun des éléments amortisseurs latéraux se subdivise en une partie latérale fixée à la coque et en une partie arrière librement articulée à la partie latérale. Chaque élément amortisseur latéral est donc partiellement fixé à la coque. Les extrémités libres des parties arrière sont liées entre elles par une bande élastique. Les parties arrière et la bande élastique sont situées à distance de la face interne de la coque. Il en résulte la présence de volumes morts intercalés entre la coque et les éléments amortisseurs, ce qui n'est pas une protection optimale. L'élément amortisseur avant est complètement dissocié des éléments amortisseurs latéraux, avec interposition d'intervalles vides au niveau lesquels aucun serrage n'est appliqué à la tête en position dans la cavité du casque. Le serrage de la tête n'est réalisé que latéralement et par l'arrière, ce qui implique une tenue du casque et une protection discutables. Enfin, la fonction de serrage est réalisée par la bande élastique arrière et par la compressibilité des éléments amortisseurs latéraux. La coque située à distance de ces organes avec interposition de volumes morts comme indiqué ci-dessus ne participe pas au serrage de la tête et ne présente aucune adaptation possible à la morphologie de la tête de l'utilisateur. Seuls les éléments latéraux s'adaptent à la morphologie de la tête.A protective helmet of this type is known from the document US6665884B1 , which provides a rigid shell that deforms only under the effect of an external impact. Side, front and top damping elements are attached to the inside of the hull. Each of the lateral damping elements is subdivided into a lateral part fixed to the shell and a rear part freely articulated to the lateral part. Each side damper element is therefore partially attached to the hull. The free ends of the rear parts are interconnected by an elastic band. The rear parts and the elastic band are located at a distance from the inner face of the shell. This results in the presence of dead volumes interposed between the shell and the damping elements, which is not an optimal protection. The front damping element is completely dissociated from the lateral damping elements, with the interposition of empty intervals at which no clamping is applied to the head in position in the helmet cavity. The tightening of the head is realized only laterally and from behind, which implies a questionable helmet and protection. Finally, the clamping function is performed by the rear elastic band and the compressibility of the lateral damping elements. The hull located at a distance from these bodies with interposition of dead volumes as indicated above does not participate in tightening the head and has no possible adaptation to the morphology of the head of the user. Only the lateral elements adapt to the morphology of the head.

DE 88 04 821 01 décrit un casque de protection selon le préambule de la revendication 1. DE 88 04 821 01 discloses a protective helmet according to the preamble of claim 1.

En outre, les chocs sur un casque lors d'une chute sont rarement purement perpendiculaires à la coque et il arrive fréquemment qu'une composante tangentielle à la coque engendre un couple de torsion violant sur la tête puis sur le cou. Ces rotations subites de la tête engendrent des lésions internes sur les éléments de liaison du cerveau à la boîte crânienne. Les casques de l'art antérieur ne protègent pas ce phénomène, et ne sont pas complètement satisfaisants sur la question de la sécurité.In addition, shocks on a helmet during a fall are rarely purely perpendicular to the hull and it often happens that a tangential component to the hull generates a violent torque on the head and then on the neck. These sudden rotations of the head cause internal lesions on the connecting elements of the brain to the cranial box. The helmets of the prior art do not protect this phenomenon, and are not completely satisfactory on the issue of safety.

Objet de l'inventionObject of the invention

L'objet de l'invention consiste à réaliser un casque de protection permettant d'optimiser le confort, la tenue, l'esthétique et la sécurité quelle que soit la morphologie de la tête de l'utilisateur du casque.The object of the invention is to provide a protective helmet for optimizing comfort, hold, aesthetics and safety regardless of the morphology of the head of the user of the helmet.

Le but est atteint par un casque selon les revendications annexées, en particulier par le fait que les éléments amortisseurs sont constitués par un matériau formant mousse rigide, la coque est réalisée dans un matériau élastiquement déformable, et en ce que la face tournée du côté de la coque des éléments amortisseurs disposés à la périphérie de l'ouverture est intégralement rapportée contre la face interne de la coque pour former une ceinture intérieure d'appui complètement en contact avec la coque, le casque étant agencé de sorte qu'une position de la tête dans la cavité provoque une déformation de la ceinture d'appui par déformation élastique de la coque en fonction de la morphologie de la tête, générant un serrage permanent de la ceinture d'appui contre la tête sensiblement uniforme le long de la ceinture d'appui.The goal is achieved by a helmet according to the appended claims, in particular by the fact that the damping elements are constituted by a rigid foam material, the shell is made of an elastically deformable material, and that the face turned towards the the shell of the damping elements disposed at the periphery of the opening is integrally attached against the inner face of the shell to form an inner support belt completely in contact with the shell, the helmet being arranged so that a position of the head in the cavity causes a deformation of the support belt by elastic deformation of the shell in according to the morphology of the head, generating a permanent tightening of the support belt against the substantially uniform head along the support belt.

Les éléments amortisseurs disposés à la périphérie de l'ouverture sont par exemple positionnés côte à côte de sorte à former une ceinture d'appui bordant la totalité de la périphérie de l'ouverture afin d'éviter des intervalles vides le long de la périphérie de l'ouverture. Comme la face tournée vers la coque des éléments amortisseurs en périphérie de l'ouverture est intégralement rapportée contre la coque, il en résulte l'absence de volumes morts intercalés entre la coque et les éléments amortisseurs, conférant une protection optimale. La coque est prévue pour se déformer élastiquement en flexion lorsque la tête est en position dans la cavité du casque pour générer, par retour élastique de la coque vers sa configuration naturelle avant mise en place de la tête dans la cavité, le serrage de la ceinture d'appui contre la tête. La coque s'adapte donc automatiquement à la morphologie de la tête de l'utilisateur. L'ensemble des éléments amortisseurs bordant la périphérie de l'ouverture participent au serrage et s'adaptent à la morphologie de la tête. Une ceinture d'appui ainsi formée et agencée de sorte à se déformer lorsque la tête est en position dans la cavité du casque, par déformation de la coque contre laquelle elle est complètement rapportée, a pour effet de serrer la tête de manière permanente et uniforme sur le pourtour de la ceinture, ce qui implique une tenue du casque et une protection améliorées.The damping elements arranged at the periphery of the opening are for example positioned side by side so as to form a support belt bordering the entire periphery of the opening in order to avoid empty intervals along the periphery of the opening. the opening. As the side facing the shell damping elements periphery of the opening is integrally reported against the shell, it results in the absence of dead volumes interposed between the shell and the damping elements, giving optimum protection. The shell is designed to elastically deform in flexion when the head is in position in the helmet cavity to generate, by elastic return of the shell to its natural configuration before placing the head in the cavity, tightening the belt support against the head. The shell therefore adapts automatically to the morphology of the user's head. All damping elements bordering the periphery of the opening participate in the clamping and adapt to the morphology of the head. A support belt thus formed and arranged so as to deform when the head is in position in the helmet cavity, by deformation of the shell against which it is completely attached, has the effect of tightening the head permanently and uniformly around the waist, which implies improved helmet wear and protection.

Description sommaire des dessinsBrief description of the drawings

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre de modes particuliers de réalisation de l'invention donnés à titre d'exemples non limitatifs et représentés aux dessins annexés, dans lesquels :

  • la figure 1 est une vue en perspective de dessous d'une casque selon l'invention,
  • la figure 2 est une vue en coupe longitudinale du casque de la figure 1,
  • les figures 3 à 6 illustrent différentes variantes de moyens de liaison entre les éléments amortisseurs,
  • les figures 7 à 10 représentent différentes variantes de forme des éléments amortisseurs,
  • la figure 11 est une vue en coupe d'un casque comprenant des éléments écarteur.
Other advantages and features will emerge more clearly from the following description of particular embodiments of the invention given by way of non-limiting example and represented in the accompanying drawings, in which:
  • the figure 1 is a perspective view from below of a helmet according to the invention,
  • the figure 2 is a longitudinal sectional view of the helmet of the figure 1 ,
  • the Figures 3 to 6 illustrate different variants of connecting means between the damping elements,
  • the Figures 7 to 10 represent different shape variants of the damping elements,
  • the figure 11 is a sectional view of a helmet comprising spacer elements.

Description des modes préférentiels de l'inventionDescription of the Preferred Modes of the Invention

Le casque de protection 10 des figures 1 et 2 délimite une cavité ouverte sur l'extérieur au travers d'une ouverture 11 pour l'engagement de la tête à l'intérieur de la cavité. Le casque 10 comporte une coque externe 12 d'un seul tenant et dépourvue d'entailles. Une pluralité d'éléments amortisseurs 13 est rapportée à l'intérieur de la coque 12 de manière à constituer un calotin d'amortissement recouvrant sensiblement la totalité de la face interne de la coque 12. Des moyens de liaison peuvent être prévus pour relier les éléments amortisseurs 13 entre eux, mais de tels moyens de liaison ne sont pas indispensables. Il est possible de prévoir que chaque élément amortisseur 13 soit rattaché à la coque sans connexion avec les autres éléments amortisseurs 13.The protective helmet 10 Figures 1 and 2 delimits a cavity open to the outside through an opening 11 for the engagement of the head within the cavity. The helmet 10 has an outer shell 12 in one piece and devoid of nicks. A plurality of damping elements 13 is attached to the inside of the shell 12 so as to constitute a damping cap covering substantially all of the inner face of the shell 12. Connecting means may be provided to connect the elements dampers 13 between them, but such connecting means are not essential. It is possible to provide that each damping element 13 is attached to the shell without connection with the other damping elements 13.

Il convient d'entendre par « entaille » un enlèvement allongé local de matière sur toute l'épaisseur du casque (c'est-à-dire sur toute l'épaisseur du calotin et sur toute l'épaisseur de la coque) agencé de manière à déboucher sur les bords du casque. Toutefois la coque 12 peut comporter des orifices locaux de ventilation ayant un contour fermé, c'est-à-dire ne débouchant pas sur les bords du casque.It should be understood by "notch" a local elongated removal of material over the entire thickness of the helmet (that is to say over the entire thickness of the calotin and over the entire thickness of the shell) arranged so to debouch on the edges of the helmet. However, the shell 12 may include local ventilation holes having a closed contour, that is to say, not leading to the edges of the helmet.

Les éléments amortisseurs 13 sont constitués par du polystyrène expansé (PSE) ou toute autre mousse sensiblement rigide qui présente un intérêt économique comparable à celui du PSE ou des propriétés d'amortissement intéressantes. La coque 12, quant à elle, est réalisée dans un matériau élastiquement déformable, tel qu'un matériau polymère thermoplastique, tel que le polycarbonate, l'acrylonitrile butadiène styrène (ou ABS), le polystyrène, le téréphtalate de polyéthylène glycolisé (ou PETG), le chlorure de polyvinyle (ou PVC). Le choix du matériau de la coque 12 est tel que la coque 12 présente une résistance satisfaisante aux chocs extérieurs et que le module de flexion du matériau est compris entre 1500 et 4500 MPa. Pour une capacité de déformation élastique en flexion recherchée, l'épaisseur de la coque externe 12 est par exemple comprise entre 0,5 et 3 mm, en fonction notamment du module d'élasticité. Le matériau constitutif de la coque 12 présente également une caractéristique d'allongement à la rupture en traction qui est de préférence supérieure à 10%.The damping elements 13 are constituted by expanded polystyrene (EPS) or any other substantially rigid foam which has an economic interest comparable to that of the EPS or interesting damping properties. The shell 12, for its part, is made of an elastically deformable material, such as a thermoplastic polymer material, such as polycarbonate, acrylonitrile butadiene styrene (or ABS), polystyrene, glycolized polyethylene terephthalate (or PETG). ), polyvinyl chloride (or PVC). The choice of the material of the shell 12 is such that the shell 12 has a satisfactory resistance to external shocks and that the bending modulus of the material is between 1500 and 4500 MPa. For a resilient deformation capacity in desired bending, the thickness of the outer shell 12 is for example between 0.5 and 3 mm, depending in particular on the modulus of elasticity. The material constituting the shell 12 also has a tensile elongation at break characteristic which is preferably greater than 10%.

Lorsqu'ils sont utilisés, les moyens de liaison entre les éléments amortisseurs 13 peuvent être réalisés de n'importe quelle manière, et sont par exemple conçus pour autoriser des mouvements relatifs entre les éléments amortisseurs 13.When used, the connecting means between the damping elements 13 can be made in any way, and are for example designed to allow relative movements between the damping elements 13.

Une première solution consiste à utiliser une structure unique 14 connectant l'ensemble des éléments amortisseurs 13 entre eux. Dans le cas où le calotin d'amortissement est constitué d'un élément amortisseur sommital autour duquel est répartie angulairement une pluralité d'éléments amortisseur latéraux, avant et arrière, la structure unique 14 peut par exemple prendre la forme d'une araignée dont la tête est fixée à l'élément amortisseur sommital et dont chaque patte assure la liaison entre l'élément amortisseur sommital et un élément amortisseur périphérique. Sur la figure 3, les éléments amortisseurs sommitaux, latéraux, avant et arrière, proviennent de surmoulage sur la structure unique 14. Par contre sur la figure 5, la structure unique 14 n'est pas surmoulée, mais elle est emprisonnée entre les éléments amortisseurs 13 et la face interne de la coque externe 12.A first solution consists in using a single structure 14 connecting all the damping elements 13 to each other. In the case where the cushioning cap consists of an upper damping element around which is distributed angularly a plurality of lateral damping elements, front and rear, the single structure 14 may for example take the form of a spider whose head is attached to the upper damping element and each leg ensures the connection between the upper damping element and a peripheral damping element. On the figure 3 , the top, side, front and rear damping elements come from overmoulding on the single structure 14. On the other hand, figure 5 , the structure single 14 is not overmoulded, but it is trapped between the damping elements 13 and the inner face of the outer shell 12.

Une autre solution consiste à utiliser une pluralité d'organes de connexion discrets réalisant individuellement une liaison locale entre deux éléments amortisseurs 13. Dans le cas où le calotin d'amortissement est constitué d'un élément amortisseur sommital autour duquel sont répartis angulairement une pluralité d'éléments amortisseur latéraux, avant et arrière, chaque organe de connexion assure la liaison entre l'élément amortisseur sommital et un élément amortisseur périphérique. Sur la figure 4, chaque organe de connexion prend la forme d'une boucle 15 formée par la fermeture sur lui-même d'un ruban en textile ou en matériau auto-agrippant de type Velcro@. Une extrémité de la boucle 15 passe au travers d'un orifice de passage ménagé dans l'élément amortisseur sommital, et l'extrémité opposée traverse un orifice de passage de l'élément amortisseur périphérique lié. Sur la figure 6 par contre, chaque organe de connexion est formé par un insert 16 en deux parties axialement décalées. Chaque partie est destinée à coopérer soit avec l'élément amortisseur sommital, soit avec un élément amortisseur périphérique, et comporte à cet effet une pluralité de pattes anti-retour en forme de sapin.Another solution is to use a plurality of discrete connection members individually performing a local connection between two damping elements 13. In the case where the damping cap is constituted by a top damping element around which are angularly distributed a plurality of side damping elements, front and rear, each connecting member provides the connection between the upper damping element and a peripheral damping element. On the figure 4 each connecting member takes the form of a loop 15 formed by the closure on itself of a textile tape or Velcro® self-gripping material. One end of the loop 15 passes through a through hole in the top damping member, and the opposite end passes through a through hole of the bonded peripheral damping member. On the figure 6 by cons, each connecting member is formed by an insert 16 in two axially offset parts. Each part is intended to cooperate with either the upper damping element or with a peripheral damping element, and for this purpose comprises a plurality of fir tree-type return tabs.

La face tournée du côté de la coque 12 des éléments amortisseurs 13 disposés à la périphérie de l'ouverture 11 est intégralement rapportée contre la face interne de la coque 12 pour former une ceinture intérieure d'appui bordant la périphérie de l'ouverture et complètement en contact avec la coque. La face tournée vers la coque 12 de chaque élément amortisseur 13 constitutif de la ceinture d'appui est donc intégralement en contact avec la face interne de la coque 12 lorsque la tête de l'utilisateur est en position dans la cavité du casque. Pour former une ceinture d'appui bordant la totalité de la périphérie de l'ouverture 11 afin d'éviter des intervalles vides le long de la périphérie de l'ouverture 11, les éléments amortisseurs 13 disposés à la périphérie de l'ouverture 11 peuvent être positionnés côte à côte ou placés à distance négligeable de l'ordre de quelques millimètres. La ceinture d'appui présente une forme d'anneau délimitant intérieurement le contour de l'ouverture 11. Extérieurement, la ceinture d'appui est complètement en contact avec la face interne de la coque 12, garantissant l'absence de volumes morts intercalés entre la coque 12 et les éléments amortisseurs 13 constitutifs de la ceinture pour conférer une protection optimale.The side facing the shell 12 of the damping elements 13 disposed at the periphery of the opening 11 is integrally attached against the inner face of the shell 12 to form an inner support belt bordering the periphery of the opening and completely in contact with the hull. The face facing the shell 12 of each damper element 13 constituting the support belt is fully in contact with the inner face of the shell 12 when the head of the user is in position in the cavity of the helmet. To form a support belt bordering the entire periphery of the opening 11 to avoid empty intervals along the periphery of the opening 11, the damping elements 13 arranged at the periphery of the opening 11 can be positioned side by side or placed at a negligible distance of the order of a few millimeters. The support belt has a ring shape internally defining the contour of the opening 11. Externally, the support belt is completely in contact with the inner face of the shell 12, ensuring the absence of interposed dead volumes between the shell 12 and damping elements 13 constituting the belt to provide optimum protection.

La forme, les dimensions et l'épaisseur de la coque 12, l'épaisseur des éléments amortisseurs 13 constitutifs de la ceinture d'appui, sont choisis pour que les dimensions intérieures de la ceinture d'appui (délimitant la périphérie de l'ouverture 11) soient parfaitement ajustées au périmètre attendu de la tête dans la zone de contact prévue de la tête. Le casque est ainsi agencé de sorte qu'un positionnement de la tête dans la cavité du casque provoque une déformation de la ceinture d'appui résultant d'une déformation élastique en flexion de la coque, générant par rappel élastique de la coque vers sa configuration naturelle (avant positionnement de la tête dans la cavité du casque) un serrage permanent de la ceinture d'appui contre la tête sensiblement uniforme le long de la ceinture d'appui.The shape, the dimensions and the thickness of the shell 12, the thickness of the damping elements 13 constituting the support belt, are chosen so that the internal dimensions of the support belt (delimiting the periphery of the opening 11) are perfectly adjusted to the expected perimeter of the head in the intended contact area of the head. The helmet is thus arranged so that a positioning of the head in the helmet cavity causes a deformation of the support belt resulting from an elastic deformation in flexion of the shell, generating by elastic return of the shell towards its configuration natural (before positioning the head in the helmet cavity) a permanent tightening of the support belt against the substantially uniform head along the support belt.

Quels que soient les moyens de liaison entre les éléments amortisseurs 13, l'accrochage du calotin d'amortissement sur la face interne de la coque 12 peut se pratiquer en fixant à la coque au moins un élément amortisseur 13 du calotin. De tels moyens de fixation peuvent être conçus pour autoriser un léger glissement entre la coque 12 et les éléments amortisseurs 13 fixés. Ces légers glissements entre les éléments amortisseurs 13 et la coque 12, ainsi que les mouvements entre les éléments amortisseurs 13, peuvent générer des bruits potentiellement désagréables contre lesquels il est possible d'agir en recouvrant la face interne de la coque et/ou les éléments amrtisseurs d'un revêtement de type feutrine, spray, silicone...Whatever the connecting means between the damping elements 13, the attachment of the damping cap on the inner face of the shell 12 can be practiced by fixing the shell at least one damping element 13 of the calotin. Such fastening means may be designed to allow a slight sliding between the shell 12 and the damping elements 13 fixed. These slight glides between the damping elements 13 and the shell 12, as well as the movements between the damping elements 13, can generate potentially unpleasant noises against which it is possible to act by covering the inner face of the shell and / or the elements finishers of a felt-type coating, spray, silicone ...

Dans le cas où le calotin d'amortissement est constitué d'un élément amortisseur sommital autour duquel est répartie angulairement une pluralité d'éléments amortisseurs latéraux, avant et arrière, une première solution consiste à utiliser des moyens de fixation assurant une solidarisation de l'élément sommital avec la face interne de la coque 12. Dans une deuxième solution, le casque 10 comporte des moyens pour fixer intégralement à la coque 12 les éléments amortisseurs constitutifs de la ceinture d'appui de sorte que la ceinture d'appui est complètement solidaire de la face interne de la coque 12. Il convient alors de prévoir, de préférence, que les moyens pour fixer intégralement à la coque 12 les éléments amortisseurs constitutifs de la ceinture d'appui autorisent un léger glissement entre la coque 12 et les éléments amortisseurs fixés. Cette caractéristique peut être obtenue en utilisant des moyens d'accrochage de bande auto-agrippante de type Velcro@ ou de type boucle/crochet coopérants, et présente pour avantage une meilleure adaptation des éléments amortisseurs à la morphologie de la tête.In the case where the cushioning cap consists of an upper damping element around which is distributed angularly a plurality of lateral damping elements, front and rear, a first solution is to use fastening means ensuring a solidarization of the upper element with the inner face of the shell 12. In a second solution, the helmet 10 comprises means for integrally attaching to the shell 12 the constituent damping elements of the support belt so that the support belt is completely secured. of the inner face of the shell 12. It should then be provided, preferably, that the means for integrally attaching to the shell 12 the constituent damping elements of the support belt allow a slight sliding between the shell 12 and the damping elements set. This characteristic can be obtained by using hook-and-loop fastening means of the Velcro® type or of the cooperating loop / hook type, and has the advantage of a better adaptation of the damping elements to the morphology of the head.

Dans une variante améliorant le confort au niveau du contact entre la ceinture d'appui et la tête, des éléments compressibles 17 peuvent être agencés sur la face opposée à la face fixée à la coque 12 des éléments amortisseurs constitutifs de la ceinture d'appui. De tels éléments compressibles 17 peuvent recouvrir toute ou partie du pourtour de la ceinture d'appui, et sont réalisés par une mousse souple et résiliente par exemple en acétate de vinyle éthylène (EVA), rapportée ou prévue lors de la fabrication des éléments amortisseurs de la ceinture d'appui. De tels éléments compressibles 17 ont pour fonction de créer une ceinture complémentaire qui permet de positionner à l'intérieur d'un casque prévu pour un périmètre de tête donné, une tête ayant un périmètre supérieur par déformation des éléments compressibles 17.In a variant improving the comfort at the contact between the support belt and the head, compressible elements 17 may be arranged on the face opposite to the face fixed to the shell 12 of the constituent damping elements of the support belt. Such compressible elements 17 may cover all or part of the periphery of the support belt, and are made by a flexible and resilient foam, for example ethylene vinyl acetate (EVA), reported or provided during the manufacture of the damping elements of the support belt. Such compressible elements 17 have the function of creating a complementary belt which makes it possible to position inside a helmet provided for a given head perimeter, a head having an upper perimeter by deformation of the compressible elements 17.

De plus, des éléments de remplissage peuvent être aménagés pour combler les interstices entre les éléments amortisseurs 13, sur toute ou partie du calotin d'amortissement. De tels éléments de remplissage peuvent être réalisés dans tout matériau souple et résilient adapté, par exemple en acétate de vinyle éthylène (EVA).In addition, filling elements may be arranged to fill the interstices between the damping elements 13, on all or part of the damping cap. Such filling elements may be made of any flexible and resilient material adapted, for example ethylene vinyl acetate (EVA).

Selon un mode de réalisation en aucun cas limitatif, les éléments de remplissage disposés entre les éléments amortisseurs 13 peuvent être constitués par des éléments écarteurs 18. Comme l'illustre la figure 11, de tels éléments écarteurs 18 peuvent être constitués par des connecteurs élastiques adoptant une forme générale de V qui visent à maintenir en permanence un espace minimum au repos entre chacun des éléments amortisseurs 13. Par déformation des connecteurs élastiques sous l'effet de forces extérieures, cet espace minimum peut diminuer temporairement, jusqu'à revenir à sa dimension naturelle par retour élastique des connecteurs vers leur configuration naturelle de repos lorsque les forces extérieures cessent. Ce mode de réalisation est particulièrement avantageux en cas d'absence des éléments compressibles 17.According to one embodiment in no way limiting, the filler elements disposed between the damping elements 13 may be constituted by spacer elements 18. As illustrated by FIG. figure 11 such spacers 18 may be constituted by resilient connectors adopting a general V-shape which aim to maintain permanently a minimum space at rest between each of the damping elements 13. By deformation of the elastic connectors under the effect of external forces, this minimum space can temporarily decrease, until it returns to its natural dimension by elastic return of the connectors towards their natural configuration of rest when the external forces cease. This embodiment is particularly advantageous in the absence of the compressible elements 17.

Outre la création d'un glissement entre la coque 12 et les éléments amortisseurs 13, les éléments écarteurs 18 présentent un premier avantage de garantir le maintien constant d'un effet de placage des éléments amortisseurs 13 contre la face interne de la coque 12, supprimant toute mobilité des éléments 13 notamment tant que le casque n'est pas utilisé. Ils permettent de plus de faciliter les déformations de l'ensemble formé par la coque et par le calotin segmenté en favorisant le glissement. Enfin, ils permettent d'éliminer les bruits et les crissements induits par le contact entre les éléments 13 entre eux et vis-à-vis de la coque 12. Les éléments écarteurs 18 peuvent être obtenus par thermoformage ou par injection de matière (par exemple PE ou PP).In addition to the creation of a sliding between the shell 12 and the damping elements 13, the spacer elements 18 have a first advantage of ensuring the constant maintenance of a plating effect of the damping elements 13 against the inner face of the shell 12, eliminating any mobility of the elements 13 especially as the helmet is not used. They also make it easier to deform the assembly formed by the shell and the segmented bonnet by promoting sliding. Finally, they make it possible to eliminate the noises and creations induced by the contact between the elements 13 with each other and with respect to the shell 12. The spacer elements 18 may be obtained by thermoforming or by injecting material (for example PE or PP).

Le casque 10 peut en outre comporter une jugulaire connectée à ses extrémités à deux éléments amortisseurs opposés appartenant chacun à la ceinture d'appui.The helmet 10 may further comprise a chinstrap connected at its ends to two opposing damping elements each belonging to the support belt.

Les figures 7 à 10 ont pour objectif d'illustrer les différentes variantes de forme que peuvent revêtir les éléments amortisseurs 13 du calotin d'amortissement. Sur la figure 10, un élément amortisseur sommital est raccordé à une pluralité d'éléments amortisseurs latéraux, avant et arrière, aménagés en périphérie de l'élément sommital. La figure 9 est une variante de la figure 10, dans laquelle les éléments amortisseurs périphériques sont subdivisés en deux éléments indépendants décalés en direction du fond de la cavité. Par contre, les figures 7 et 8 représentent avec une densité de répartition respectivement grande et plus faible, un calotin où les éléments amortisseurs 13 sont hexagonaux et répartis uniformément sur toute la face interne de la coque 12.The Figures 7 to 10 are intended to illustrate the different shape variants that can take the damping elements 13 cushioning cap. On the figure 10 , a top damping element is connected to a plurality of lateral damping elements, front and rear, arranged at the periphery of the summit element. The figure 9 is a variant of the figure 10 , wherein the peripheral damping elements are subdivided into two independent elements offset towards the bottom of the cavity. However, Figures 7 and 8 represent with a distribution density respectively large and smaller, a cap where the damping elements 13 are hexagonal and distributed uniformly over the entire inner face of the shell 12.

L'ensemble des variantes de casque décrits ci-dessus présentent l'avantage d'une grande qualité de ventilation à l'intérieur du casque. En effet, la chaleur émanant de la tête de l'utilisateur est principalement de la radiation sur le pourtour du crâne. Les fentes ou interstices entre les éléments 13 créent un réseau de circulation d'air qui permet une évacuation efficace de la chaleur et de l'humidité. Cet effet peut être renforcé si la coque 12 est pourvue de trous débouchant vers l'extérieur et facilitant la création d'un courant d'air de ventilation variable en fonction de la mobilité de l'utilisateur.The set of helmet variants described above have the advantage of a high quality of ventilation inside the helmet. Indeed, the heat emanating from the head of the user is mainly radiation on the circumference of the skull. Slits or interstices between the elements 13 create an air circulation network that allows efficient removal of heat and moisture. This effect can be enhanced if the shell 12 is provided with holes opening outwards and facilitating the creation of a variable ventilation air flow depending on the mobility of the user.

Enfin concernant la sécurité, les modes de réalisation décrits précédemment où les éléments amortisseurs 13 latéraux sont flottants permettent d'absorber une partie de l'énergie en glissant et en pivotant entre la tête et la coque dans le cas de composantes tangentielles d'efforts. Ce déplacement de quelques dizaines de millimètres est capital pour permettre d'amortir le pic de contrainte et rester en dessous du seuil de lésions du cerveau. Dans le cas d'un effort supérieur, un glissement, dans le plan de la ceinture d'appui, entre la tête et le casque est possible pour amortir l'onde de choc. Cette possibilité est permise grâce à la déformation libre du périmètre de la ceinture d'appui.Finally, with regard to safety, the previously described embodiments in which the lateral damping elements 13 are floating make it possible to absorb a portion of the energy by sliding and pivoting between the head and the shell in the case of tangential components of forces. This displacement of a few tens of millimeters is essential to allow to dampen the stress peak and stay below the threshold of lesions of the brain. In the case a greater effort, a sliding in the plane of the support belt, between the head and the helmet is possible to damp the shock wave. This possibility is allowed thanks to the free deformation of the perimeter of the support belt.

Dans une variante avantageuse, le moyen de fixation de l'élément amortisseur 13 sommital et la coque 12 peut servir de fusible et permettre une désolidarisation au moins partielle des deux éléments, permettant une rotation plus importante de la coque par rapport au calotin, rendant la transmission d'efforts quasi-nulle. Un tel moyen de fixation peut être réalisé avec de la colle, par exemple de type « hot melt glue », ou bien un aimant ou en matériau auto-agrippant de type Velcro@. La coque 12 ne peut pas se désolidariser car la jugulaire ou équivalent sous le menton de l'utilisateur garantit l'unité de l'ensemble.In an advantageous variant, the attachment means of the upper damping element 13 and the shell 12 may serve as a fuse and allow at least partial separation of the two elements, allowing a greater rotation of the shell relative to the cap, making the almost zero effort transmission. Such a fixing means may be made with glue, for example of the "hot melt glue" type, or a magnet or Velcro® type self-gripping material. The hull 12 can not be detached because the jugular or equivalent under the chin of the user guarantees the unity of the assembly.

Claims (10)

  1. A safety helmet (10) delineating a cavity open onto the outside through an opening (11) to engage the head in the cavity, comprising an outer shell (12) in a single part, a plurality of damping elements (13) added-on to the inside of the shell (12), characterized in that the damping elements (13) are formed by a rigid foam, the shell (12) is made from elastically deformable material, and that the whole of the surface, facing the shell (12), of the damping elements (13) arranged at the periphery of the opening (11) is positioned against the inner surface of the shell (12) to form an inner supporting belt completely in contact with the shell (12), the helmet (10) being arranged in such a way that a position of the head in the cavity causes a deformation of the supporting belt by elastic deformation of the shell (12) according to the morphology of the head, generating permanent tightening of the supporting belt against the head in a substantially uniform manner along the supporting belt.
  2. The helmet according to claim 1, characterized in that it comprises means for integrally fixing the damping elements (13) constituting the supporting belt to the shell (12).
  3. The helmet according to claim 2, characterized in that the means for integrally fixing the damping elements (13) constituting the supporting belt to the shell (12) allow a slight sliding between the shell (12) and the fixed damping elements (13).
  4. The helmet according to one of claims 1 to 3, characterized in that the material of the outer shell (12) presents a modulus of elasticity comprised between 1500 and 4500 MPa.
  5. The helmet according to one of claims 1 to 4, characterized in that the thickness of the outer shell (12) is comprised between 0.5 and 3 mm.
  6. The helmet according to one of claims 1 to 5, characterized in that compressible elements (17) are arranged on the surface opposite the surface of the damping elements (13) constituting the supporting belt fixed to the shell (12).
  7. The helmet according to one of claims 1 to 6, characterized in that it comprises joining means (14 to 16) to join the damping elements (13) to one another.
  8. The helmet according to claim 7, characterized in that the joining means (14 to 16) allow relative movements between the damping elements (13).
  9. The helmet according to one of claims 7 and 8, characterized in that the joining means (14 to 16) comprise a single structure (14) connecting the set of damping elements (13) to one another.
  10. The helmet according to one of claims 7 and 8, characterized in that the joining means (14 to 16) comprise a plurality of discrete connecting parts (15, 16) individually making a local connection between two damping elements (13).
EP10707090A 2009-02-13 2010-02-11 Deformable safety helmet Not-in-force EP2395865B1 (en)

Applications Claiming Priority (2)

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FR0900674A FR2942111B1 (en) 2009-02-13 2009-02-13 DEFORMABLE PROTECTION HELMET
PCT/FR2010/000108 WO2010092254A1 (en) 2009-02-13 2010-02-11 Deformable safety helmet

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EP2395865A1 EP2395865A1 (en) 2011-12-21
EP2395865B1 true EP2395865B1 (en) 2013-04-03

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EP (1) EP2395865B1 (en)
JP (1) JP5693472B2 (en)
CA (1) CA2752516C (en)
DK (1) DK2395865T3 (en)
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FR2942111B1 (en) 2011-02-25
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WO2010092254A1 (en) 2010-08-19
CA2752516A1 (en) 2010-08-19
DK2395865T3 (en) 2013-07-01
US20120047635A1 (en) 2012-03-01
JP2012518097A (en) 2012-08-09
US8850622B2 (en) 2014-10-07
EP2395865A1 (en) 2011-12-21
JP5693472B2 (en) 2015-04-01

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