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WO2007077368A2 - Device for protecting the cervical spine of an individual, and corresponding collar - Google Patents

Device for protecting the cervical spine of an individual, and corresponding collar Download PDF

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Publication number
WO2007077368A2
WO2007077368A2 PCT/FR2006/002901 FR2006002901W WO2007077368A2 WO 2007077368 A2 WO2007077368 A2 WO 2007077368A2 FR 2006002901 W FR2006002901 W FR 2006002901W WO 2007077368 A2 WO2007077368 A2 WO 2007077368A2
Authority
WO
WIPO (PCT)
Prior art keywords
collar
foam
kpa
helmet
scapular
Prior art date
Application number
PCT/FR2006/002901
Other languages
French (fr)
Other versions
WO2007077368A3 (en
Inventor
François Courtet
Original Assignee
Thuasne
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 Thuasne filed Critical Thuasne
Publication of WO2007077368A2 publication Critical patent/WO2007077368A2/en
Publication of WO2007077368A3 publication Critical patent/WO2007077368A3/en

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Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/0512—Neck or shoulders area
    • 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
    • A42B3/0406—Accessories for helmets
    • A42B3/0473—Neck restraints
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/08—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions
    • A63B71/12—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions for the body or the legs, e.g. for the shoulders
    • A63B71/1291—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions for the body or the legs, e.g. for the shoulders for the neck

Definitions

  • the present invention relates to a device for protecting the cervical spine of an individual, of the type comprising a helmet and an annular collar of foam adapted to limit the movements of the head relative to the trunk, the collar comprising, on its underside, two scapular recesses adapted to fit on the shoulders, the collar being adapted to be retained in place by the helmet.
  • Such devices are used in the practice of sports such as motor racing, road or off-road motorbikes, motocross, kart, quad, as well as various non-motorized sports and gliding. These devices can be used by professional or amateur athletes, or by children.
  • These devices are designed to protect the cervical spine in case of shock. During a shock on the front, for example, the head is projected first forward and bounces backward. These protection devices are intended to cushion the impact on the front, rear and also on the sides in the event of a side impact, by limiting the movements of the head in hyper-extension.
  • the known devices see for example the document DE 20 2005 014 107 U1, have the disadvantage of not making the cervical protection device perfectly immobilized with respect to the anatomical shape of the upper end of the trunk.
  • the protection can move in rotation with respect to its functional initial position. It loses much of its effectiveness and can also be rejected by the person who wears because of the embarrassment thus caused.
  • the object of the invention is to solve this problem by providing a fixed protection solution with respect to the trunk and for a reduced cost.
  • the subject of the invention is a device for protecting the cervical spine of an individual of the aforementioned type, characterized in that the collar comprises two half-rings of foam bonded together by one of their respective ends.
  • the invention also relates to a collar for a protection device as defined above.
  • FIG. 1 is a profile view of an individual using a protection device according to the invention
  • FIG. 2 is a perspective view from below of the collar of this device
  • FIG. 3 is a bottom view of the collar
  • FIGS. 4, 5 and 6 are views in vertical section along the planes IV-IV, V-V and VI-VI respectively of FIG. 3;
  • FIG. 7 is a front detail view of the closure of the collar.
  • the protection device 1 represented in FIG. 1, comprises a helmet 3 and a collar 4, the collar being intended to be interposed between the shoulders 5 of an individual 7 and the helmet 3, with a small vertical space E between the helmet 3 and the collar 4.
  • the space E is typically between 10 and
  • the collar 4 in the form of a torque, represented in FIG. 2, essentially comprises two half-rings 17 and 19 of foam, of substantially rectangular section, obtained by cutting in a foam plate, and three lower reinforcements 11, 13 and 15 made of foam, including two lateral reinforcements 11 and
  • the two half-rings 17 and 19 are assembled by gluing one of their respective ends.
  • This bonding zone 21 defines the rear of the collar 4.
  • the opposite ends, defining the closing side of the collar 4, each comprise a right end plane 23 and 25.
  • the planes 23 and 25 are, at rest, spaced apart. one from the other, and they are brought into mutual contact at the time of closure of the collar.
  • the upper surface 27 of the collar 4 is flat.
  • the foam reinforcements 11, 13 and 15 are obtained by thermocompression or by cutting. They are in the shape of a ring section corresponding to the shape of the half-rings 17 and 19, to which they are assembled, for example, by hot gluing (hot-melt) on the lower surface 29 of the collar 4.
  • the rear reinforcement 15 is glued on horseback under the two half-rings 17 and 19, thus participating in their joining.
  • the reinforcements 11, 13 and 15 may comprise, on their bonding face, streaks 33 adapted to improve the mechanical attachment of the glue.
  • each recess confers a trapezoidal shape having a transverse common axis AA transverse ( Figure 3).
  • the sections 43 of the side reinforcements 11 and 13, closing side of the collar, are straight, in the extension of the planes 23 and 25, and adapted to put the two ends of the collar 4 in contact with each other at the time of closing.
  • the thickness e of the half-rings 17 and 19 is advantageously between 20 and 30 mm, for example of the order of 26 mm.
  • the radial width I of the collar is advantageously between 40 and 60 mm, for example of the order of 50 mm.
  • the average internal radius R [and outer RE half-rings and the thickness e can be adapted according to the morphology and age of the user. It is thus possible to have a set of half-rings and reinforcements so as to create different sizes of necklaces.
  • the height hj 5 of the rear reinforcement 15 is greater, of the order of 5 mm, at the height hum lateral reinforcements.
  • the inner edges of the reinforcements 11, 13 and 15 are vertical and in the extension of the inner edges of the half-rings 17 and 19.
  • the foam constituting the half-rings 17 and 19 and the reinforcements 11, 13 and 15 is an extruded closed cell polyethylene foam with a density advantageously of between 20 kg / m 3 and 35 kg / m 3 , for example of the order of 30 kg / m 3 .
  • This foam has a high damping power.
  • a collar 4 is obtained whose damping power is in level 2 for the rear part and level 1 for the front part, according to the EPI 1621-2 standard.
  • the rear reinforcement 15 comprises a cavity 45 filled with a material 47 with very high damping power.
  • This material 47 may be, for example, a foam loaded with a damping liquid, a silicone element or an air envelope.
  • the part obtained by assembling the foam elements is wrapped by a first inner cover 51 (visible in Figure 7) in two-way elastic fabric whose sectional dimensions are, at rest, about 20% lower than those of the collar.
  • the collar 4 is then threaded into a second outer cover 53.
  • This outer cover is made of a two-way elastic fabric, also with a lower resting section of about 20%, with a weight advantageously between 250 g / m 2 and 350 g / m 2 and, for example, about 300 g / m 2 .
  • the tissue comprising this second cover 53 is, in addition, hypoallergenic.
  • the collar 4 further comprises two self-gripping strips 55 and 57, sewn on the outer cover 53, closing the collar.
  • One of the bands is made of hooks and the other of loops. They are fixed opposite one another on each end of the torque, and adapted to grip one another by contact.
  • the collar 4 also comprises two elastic strips 59 surrounding the collar each at a scapular recess 35, 37.
  • Each ribbon comprises a lower surface covered with an anti-slip material 61 adapted to cooperate with the shoulders to stabilize the collar.
  • These ribbons 59 may be used for printed or embroidered sponsor identification, logo, or other distinctive signage.
  • the various components of the collar 4, namely the foam elements 17, 19, 11, 13 and 15, the covers 51 and 53, the self-gripping strips 55 and 57 and the elastic bands 59, are flame retarded.
  • the device 1 of protection according to the invention is used in the context of a sports activity requiring the wearing of a helmet 3.
  • the collar 4 is placed in position around the neck, by spreading the two ends of the collar and in the 5.
  • the latter are housed in the scapular recesses 35, 37 and are in contact each with the two faces 41 and with the bottom of the recess.
  • the face 115 of the reinforcement 15 bears on the upper back between the shoulder blades.
  • the collar 4 is closed around the neck by means of the hook-and-loop strips 55 and 57, after tightening the two ends of the collar 4 and bringing them into contact with each other through their planes 23 and 25.
  • the helmet 3 is put on the head and locked by its jugular, and its lower edge is slightly spaced from the upper surface 27 of the collar 4.
  • the collar 4 is sandwiched between the helmet 3 and the shoulders 5, and retained in place by the helmet, without hindering the mobility of the head necessary for the practice of the sport in question, and in particular to maintain good visibility.
  • the head can move freely, with the helmet 3, rotating to the left or to the right or when a movement of the head up or down.
  • the collar 4 then does not move normally relative to the trunk.
  • This mobility may be greater or less depending on the height h rear and side reinforcements 11 and 13, chosen at the time of manufacture. A smaller thickness of the reinforcements 11, 13 and 15 allowing greater mobility of the head for better visibility, but less damping in case of shock.
  • the material 47 with very high damping capacity disposed in the cavity 45 of the rear reinforcement 15 makes it possible to compensate for a smaller thickness of the reinforcement.
  • This material 45 thus allows greater mobility of the head while ensuring a high degree of safety in case of shock.
  • shock usually frontal, the head is projected forward and then bounces on the torso backwards.
  • the forward movement the most violent because being the first, is cushioned by the lateral reinforcements 11 and 13, gathered under the chin. Then the second backward movement is cushioned by the rear reinforcement 15. Although less violent, the backward movement is the most dangerous for the vertebrae of the cervical spine. This is the risk of "whiplash”. This is why the rear reinforcement 15 is higher, or reinforced by the material 47 with very high damping power.
  • the device is also effective against side impacts, the neck being entirely surrounded by the foam collar 4.
  • the hypoallergenic outer cover 53 ensures non-irritating contact with the neck skin. It can be changed easily, in case of different user or in case of wear. Indeed, the inner cover 51 ensures easy donning of the outer cover 53.
  • the two scapular recesses 35 and 37 which allow the device to be positioned and anchored on the shoulders, make any substantial rotation of the collar 4 impossible in the presence of the helmet, space E being well below the height hn or hi 3 .
  • the collar is not likely to be ejected or displaced.
  • the flame retardant treatment suffered by the collar slows the spread of fire.
  • the assembly of the collar with different pieces of foam makes it possible to optimize cutting and material costs.
  • the cavity 45 allows to add a particularly damping material and possibly more expensive, but in small quantities, limited to the most sensitive areas.
  • the invention allows protection of the cervical spine during an impact limiting the movements of the head, for a reduced cost.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Otolaryngology (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Helmets And Other Head Coverings (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

Device (1) for protecting the cervical spine of an individual (7), of the type comprising a helmet (3) and an annular collar (4) that is made of foam and is designed to limit the movements of the head relative to the trunk, the inner surface of the collar (4) comprising two shoulder blade recesses (35) designed to engage on the shoulders (5), and the collar (4) being designed to be held in place by the helmet (3). The collar (4) comprises two half-rings of foam that are affixed to one another via one of their respective ends.

Description

Dispositif de protection du rachis cervical d'un individu et collier correspondant. Device for protecting the cervical spine of an individual and corresponding collar.

La présente invention concerne un dispositif de protection du rachis cervical d'un individu, du type comprenant un casque et un collier annulaire de mousse adapté pour limiter les mouvements de la tête par rapport au tronc, le collier comprenant, sur sa face inférieure, deux évidements scapulaires adaptés pour s'emboîter sur les épaules, le collier étant adapté pour être retenu en place par le casque.The present invention relates to a device for protecting the cervical spine of an individual, of the type comprising a helmet and an annular collar of foam adapted to limit the movements of the head relative to the trunk, the collar comprising, on its underside, two scapular recesses adapted to fit on the shoulders, the collar being adapted to be retained in place by the helmet.

De tels dispositifs sont utilisés lors de la pratique de sports tels que la course automobile, la moto de route ou tout-terrain, le moto-cross, le kart, le quad, ainsi que différents sports non motorisés et de glisse. Ces dispositifs peuvent être utilisés par des sportifs professionnels ou amateurs, ou par des enfants.Such devices are used in the practice of sports such as motor racing, road or off-road motorbikes, motocross, kart, quad, as well as various non-motorized sports and gliding. These devices can be used by professional or amateur athletes, or by children.

Ces dispositifs visent à protéger le rachis cervical en cas de choc. Lors d'un choc sur l'avant, par exemple, la tête est projetée d'abord en avant puis rebondit vers l'arrière. Ces dispositifs de protection visent à amortir le choc à l'avant, à l'arrière et aussi sur les côtés en cas de choc latéral, en limitant les mouvements de la tête en hyper-extension.These devices are designed to protect the cervical spine in case of shock. During a shock on the front, for example, the head is projected first forward and bounces backward. These protection devices are intended to cushion the impact on the front, rear and also on the sides in the event of a side impact, by limiting the movements of the head in hyper-extension.

Les dispositifs connus, voir par exemple le document DE 20 2005 014 107 U1 , présentent l'inconvénient de ne pas rendre le dispositif de protection cervicale parfaitement immobilisé par rapport à la forme anatomique de l'extrémité supérieure du tronc. La protection peut se déplacer en rotation par rapport à sa position initiale fonctionnelle. Elle perd ainsi une grande partie de son efficacité et peut d'autre part être rejetée par la personne qui la porte à cause de la gêne ainsi provoquée.The known devices, see for example the document DE 20 2005 014 107 U1, have the disadvantage of not making the cervical protection device perfectly immobilized with respect to the anatomical shape of the upper end of the trunk. The protection can move in rotation with respect to its functional initial position. It loses much of its effectiveness and can also be rejected by the person who wears because of the embarrassment thus caused.

Il existe des dispositifs connus qui permettent à la protection de rester en place par rapport au tronc par l'adjonction de systèmes de fixations. Ces systèmes de fixations présentent l'inconvénient d'être fastidieux à utiliser et sont donc souvent négligés. De plus, leur complexité en augmente le prix et oblige bien souvent à utiliser des vêtements spécifiques associés au dispositif cervical. L'invention a pour but de résoudre ce problème, en apportant une solution de protection fixe par rapport au tronc et pour un coût réduit.There are known devices that allow the protection to remain in place relative to the trunk by the addition of fastening systems. These fastening systems have the disadvantage of being tedious to use and are therefore often neglected. In addition, their complexity increases the price and often requires the use of specific clothing associated with the cervical device. The object of the invention is to solve this problem by providing a fixed protection solution with respect to the trunk and for a reduced cost.

A cet effet, l'invention a pour objet un dispositif de protection du rachis cervical d'un individu du type précité, caractérisé en ce que le collier comprend deux demi-anneaux de mousse collés entre eux par une de leurs extrémités respectives.For this purpose, the subject of the invention is a device for protecting the cervical spine of an individual of the aforementioned type, characterized in that the collar comprises two half-rings of foam bonded together by one of their respective ends.

D'autres caractéristiques de l'invention sont décrites dans les revendications 2 à 14. L'invention a également pour objet un collier destiné à un dispositif de protection tel que défini ci-dessus.Other features of the invention are described in claims 2 to 14. The invention also relates to a collar for a protection device as defined above.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple, et faite en se référant aux dessins annexés sur lesquels : - la figure 1 est une vue de profil d'un individu utilisant un dispositif de protection selon l'invention ;The invention will be better understood on reading the description which will follow, given solely by way of example, and with reference to the appended drawings in which: FIG. 1 is a profile view of an individual using a protection device according to the invention;

- la figure 2 est une vue en perspective de dessous du collier de ce dispositif ;- Figure 2 is a perspective view from below of the collar of this device;

- la figure 3 est une vue de dessous du collier ; - les figures 4, 5 et 6 sont des vues en coupe verticale selon respectivement les plans IV-IV, V-V et Vl-Vl de la figure 3 ; et- Figure 3 is a bottom view of the collar; FIGS. 4, 5 and 6 are views in vertical section along the planes IV-IV, V-V and VI-VI respectively of FIG. 3; and

- Ia figure 7 est une vue de détail de face de la fermeture du collier.- Figure 7 is a front detail view of the closure of the collar.

Le dispositif 1 de protection selon l'invention, représenté sur la figure 1 comprend un casque 3 et un collier 4, le collier étant destiné à être interposé entre les épaules 5 d'un individu 7 et le casque 3, avec un petit espace vertical E entre le casque 3 et le collier 4. L'espace E est typiquement compris entre 10 etThe protection device 1 according to the invention, represented in FIG. 1, comprises a helmet 3 and a collar 4, the collar being intended to be interposed between the shoulders 5 of an individual 7 and the helmet 3, with a small vertical space E between the helmet 3 and the collar 4. The space E is typically between 10 and

20 mm, de l'ordre de 15 mm par exemple.20 mm, of the order of 15 mm for example.

Le collier 4, en forme de torque, représenté sur la figure 2, comprend essentiellement deux demi-anneaux 17 et 19 de mousse, de section sensiblement rectangulaire, obtenus par découpe dans une plaque de mousse, et trois renforts inférieurs 11 , 13 et 15 en mousse, dont deux renforts latéraux 11 etThe collar 4, in the form of a torque, represented in FIG. 2, essentially comprises two half-rings 17 and 19 of foam, of substantially rectangular section, obtained by cutting in a foam plate, and three lower reinforcements 11, 13 and 15 made of foam, including two lateral reinforcements 11 and

13 et un renfort arrière 15. Les deux demi-anneaux 17 et 19 sont assemblés par collage de l'une de leurs extrémités respectives. Cette zone de collage 21 définit l'arrière du collier 4. Les extrémités opposées, définissant le côté fermeture du collier 4, comportent chacune un plan droit d'extrémité 23 et 25. Les plans 23 et 25 sont, au repos, espacés l'un de l'autre, et ils sont amenés en contact mutuel au moment de la fermeture du collier.13 and a rear reinforcement 15. The two half-rings 17 and 19 are assembled by gluing one of their respective ends. This bonding zone 21 defines the rear of the collar 4. The opposite ends, defining the closing side of the collar 4, each comprise a right end plane 23 and 25. The planes 23 and 25 are, at rest, spaced apart. one from the other, and they are brought into mutual contact at the time of closure of the collar.

La surface supérieure 27 du collier 4 est plane.The upper surface 27 of the collar 4 is flat.

Les renforts en mousse 11 , 13 et 15 sont obtenus par thermocompression ou par découpe. Ils sont en forme de section d'anneau correspondant à la forme des demi-anneaux 17 et 19, auxquels ils sont assemblés, par exemple, par collage à chaud (hot-melt) sur la surface inférieure 29 du collier 4. Le renfort arrière 15 est collé à cheval sous les deux demi- anneaux 17 et 19, participant ainsi à leur solidarisation.The foam reinforcements 11, 13 and 15 are obtained by thermocompression or by cutting. They are in the shape of a ring section corresponding to the shape of the half-rings 17 and 19, to which they are assembled, for example, by hot gluing (hot-melt) on the lower surface 29 of the collar 4. The rear reinforcement 15 is glued on horseback under the two half-rings 17 and 19, thus participating in their joining.

Comme le montre la figure 4, les renforts 11 , 13 et 15 peuvent comporter, sur leur face de collage, des stries 33 adaptées pour améliorer l'accrochage mécanique de la colle.As shown in Figure 4, the reinforcements 11, 13 and 15 may comprise, on their bonding face, streaks 33 adapted to improve the mechanical attachment of the glue.

Les espaces ménagés entre le renfort arrière 15 et respectivement chaque renfort latéral 11 et 13 constituent des évidements scapulaires 35 et 37. Les renforts présentent, sur chaque côté des évidements scapulaires, des pans inclinés 41 adaptés à la forme des épaules 5. Ces pans 41 confèrent en effet à chaque évidement une forme trapézoïdale ayant un axe médian commun A-A transversal (figure 3).The spaces formed between the rear reinforcement 15 and respectively each lateral reinforcement 11 and 13 constitute scapular recesses 35 and 37. The reinforcements have, on each side of the scapular recesses, inclined faces 41 adapted to the shape of the shoulders 5. These flaps 41 Indeed, each recess confers a trapezoidal shape having a transverse common axis AA transverse (Figure 3).

Les pans 43 des renforts latéraux 11 et 13, côté fermeture du collier, sont droits, dans le prolongement des plans 23 et 25, et adaptés pour mettre les deux extrémités du collier 4 en contact mutuel au moment de la fermeture.The sections 43 of the side reinforcements 11 and 13, closing side of the collar, are straight, in the extension of the planes 23 and 25, and adapted to put the two ends of the collar 4 in contact with each other at the time of closing.

L'épaisseur e des demi-anneaux 17 et 19 est avantageusement comprise entre 20 et 30 mm, par exemple de l'ordre de 26 mm. La largeur radiale I du collier est avantageusement comprise entre 40 et 60 mm, par exemple de l'ordre de 50 mm. Selon le sport pratiqué, il est possible de faire varier la hauteur h des renforts ou l'épaisseur e des demi-anneaux de manière à obtenir une épaisseur totale h + e qui permet une latitude de débattement du cou avant/arrière en présence du casque 3. Les rayons moyens intérieur R[ et extérieur RE des demi-anneaux et l'épaisseur e peuvent être adaptés en fonction de la morphologie et de l'âge de l'utilisateur. Il est ainsi possible de disposer d'un jeu de demi-anneaux et de renforts de façon à créer différentes tailles de colliers. En particulier, la hauteur hj5 du renfort arrière 15 est supérieure, de l'ordre de 5 mm, à la hauteur hum des renforts latéraux. Les bords internes des renforts 11 , 13 et 15 sont verticaux et dans le prolongement des bords internes des demi-anneaux 17 et 19.The thickness e of the half-rings 17 and 19 is advantageously between 20 and 30 mm, for example of the order of 26 mm. The radial width I of the collar is advantageously between 40 and 60 mm, for example of the order of 50 mm. Depending on the sport practiced, it is possible to vary the height h of the reinforcements or the thickness e of the half-rings so as to obtain a total thickness h + e which allows a latitude of movement of the neck front / rear in the presence of the helmet 3. The average internal radius R [and outer RE half-rings and the thickness e can be adapted according to the morphology and age of the user. It is thus possible to have a set of half-rings and reinforcements so as to create different sizes of necklaces. In particular, the height hj 5 of the rear reinforcement 15 is greater, of the order of 5 mm, at the height hum lateral reinforcements. The inner edges of the reinforcements 11, 13 and 15 are vertical and in the extension of the inner edges of the half-rings 17 and 19.

La mousse constituant les demi-anneaux 17 et 19 et les renforts 11 , 13 et 15 est une mousse en polyéthylène extrudé à cellules fermées de densité avantageusement comprise entre 20 kg/m3 et 35 kg/m3, par exemple de l'ordre de 30 kg/m3. Cette mousse est à fort pouvoir amortissant.The foam constituting the half-rings 17 and 19 and the reinforcements 11, 13 and 15 is an extruded closed cell polyethylene foam with a density advantageously of between 20 kg / m 3 and 35 kg / m 3 , for example of the order of 30 kg / m 3 . This foam has a high damping power.

On obtient ainsi, dans cet exemple, un collier 4 dont le pouvoir d'amortissement est en niveau 2 pour la partie arrière et en niveau 1 pour la partie avant, suivant la norme EPI 1621-2.In this example, a collar 4 is obtained whose damping power is in level 2 for the rear part and level 1 for the front part, according to the EPI 1621-2 standard.

Comme le montre la figure 5, le renfort arrière 15 comprend une cavité 45 empli d'un matériau 47 à très fort pouvoir d'amortissement. Ce matériau 47 peut être, par exemple, une mousse chargée d'un liquide amortisseur, d'un élément en silicone ou d'une enveloppe d'air. La pièce obtenue par l'assemblage des éléments de mousse est enveloppée par une première housse 51 intérieure (visible sur la figure 7) en tissu élastique deux sens dont les dimensions en section sont, au repos, environ 20% inférieures à celles du collier.As shown in Figure 5, the rear reinforcement 15 comprises a cavity 45 filled with a material 47 with very high damping power. This material 47 may be, for example, a foam loaded with a damping liquid, a silicone element or an air envelope. The part obtained by assembling the foam elements is wrapped by a first inner cover 51 (visible in Figure 7) in two-way elastic fabric whose sectional dimensions are, at rest, about 20% lower than those of the collar.

Le collier 4 est ensuite enfilé dans une deuxième housse 53 extérieure. Cette housse extérieure est réalisée dans un tissu élastique deux sens, également de section au repos inférieure d'environ 20%, d'une masse surfacique avantageusement comprise entre 250 g/m2 et 350 g/m2 et, par exemple, d'environ 300 g/m2. Le tissu composant cette deuxième housse 53 est, en outre, hypoallergénique. Le collier 4 comprend encore deux bandes auto-agrippantes 55 et 57, cousues sur la housse extérieure 53, de fermeture du collier. L'une des bandes est faite de crochets et l'autre de bouclettes. Elles sont fixées en regard l'une de l'autre sur chaque extrémité du torque, et adaptées pour s'agripper l'une sur l'autre par contact.The collar 4 is then threaded into a second outer cover 53. This outer cover is made of a two-way elastic fabric, also with a lower resting section of about 20%, with a weight advantageously between 250 g / m 2 and 350 g / m 2 and, for example, about 300 g / m 2 . The tissue comprising this second cover 53 is, in addition, hypoallergenic. The collar 4 further comprises two self-gripping strips 55 and 57, sewn on the outer cover 53, closing the collar. One of the bands is made of hooks and the other of loops. They are fixed opposite one another on each end of the torque, and adapted to grip one another by contact.

Le collier 4 comprend également deux rubans 59 élastiques entourant le collier chacun au niveau d'un évidement scapulaire 35, 37. Chaque ruban comprend une surface inférieure recouverte d'un matériau anti-glisse 61 adapté pour coopérer avec les épaules pour stabiliser le collier. Ces rubans 59 peuvent servir pour une inscription imprimée ou brodée d'identification de sponsor, de logo, ou tout autre signe distinctif. Les différents composants du collier 4, à savoir les éléments en mousse 17, 19, 11 , 13 et 15, les housses 51 et 53, les bandes auto-agrippantes 55 et 57 et les rubans élastiques 59, sont ignifugés.The collar 4 also comprises two elastic strips 59 surrounding the collar each at a scapular recess 35, 37. Each ribbon comprises a lower surface covered with an anti-slip material 61 adapted to cooperate with the shoulders to stabilize the collar. These ribbons 59 may be used for printed or embroidered sponsor identification, logo, or other distinctive signage. The various components of the collar 4, namely the foam elements 17, 19, 11, 13 and 15, the covers 51 and 53, the self-gripping strips 55 and 57 and the elastic bands 59, are flame retarded.

Le dispositif 1 de protection selon l'invention s'utilise dans le cadre d'une activité sportive nécessitant le port d'un casque 3. Le collier 4 est mis en position autour du cou, en écartant les deux extrémités du collier et en le posant sur les épaules 5. Ces dernières sont logées dans les évidements scapulaires 35, 37 et sont en contact chacune avec les deux faces 41 et avec le fond de l'évidement. De plus, la face 115 du renfort 15 vient en appui sur le haut du dos, entre les omoplates. On ferme le collier 4 autour du cou grâce aux lanières auto-agrippantes 55 et 57, après avoir resserré les deux extrémités du collier 4 et les avoir mises en contact l'une avec l'autre par leurs plans 23 et 25.The device 1 of protection according to the invention is used in the context of a sports activity requiring the wearing of a helmet 3. The collar 4 is placed in position around the neck, by spreading the two ends of the collar and in the 5. The latter are housed in the scapular recesses 35, 37 and are in contact each with the two faces 41 and with the bottom of the recess. In addition, the face 115 of the reinforcement 15 bears on the upper back between the shoulder blades. The collar 4 is closed around the neck by means of the hook-and-loop strips 55 and 57, after tightening the two ends of the collar 4 and bringing them into contact with each other through their planes 23 and 25.

Enfin, le casque 3 est mis sur la tête et bloqué par sa jugulaire, et son bord inférieur est légèrement espacé de la surface supérieure 27 du collier 4. Ainsi le collier 4 est disposé en sandwich entre le casque 3 et les épaules 5, et retenu en place par le casque, sans gêner la mobilité de la tête nécessaire pour la pratique du sport considéré, et notamment pour conserver une bonne visibilité.Finally, the helmet 3 is put on the head and locked by its jugular, and its lower edge is slightly spaced from the upper surface 27 of the collar 4. Thus the collar 4 is sandwiched between the helmet 3 and the shoulders 5, and retained in place by the helmet, without hindering the mobility of the head necessary for the practice of the sport in question, and in particular to maintain good visibility.

La tête peut bouger librement, avec le casque 3, en rotation vers la gauche ou vers la droite ou lors d'un mouvement de la tête vers le haut ou vers le bas. Le collier 4 ne bouge alors normalement pas par rapport au tronc. Cette mobilité peut être plus ou moins grande en fonction de la hauteur h des renforts arrière 15 et latéraux 11 et 13, choisie au moment de la fabrication. Une moindre épaisseur des renforts 11 , 13 et 15 permettant une plus grande mobilité de la tête pour une meilleure visibilité, mais un amortissement moindre en cas de choc.The head can move freely, with the helmet 3, rotating to the left or to the right or when a movement of the head up or down. The collar 4 then does not move normally relative to the trunk. This mobility may be greater or less depending on the height h rear and side reinforcements 11 and 13, chosen at the time of manufacture. A smaller thickness of the reinforcements 11, 13 and 15 allowing greater mobility of the head for better visibility, but less damping in case of shock.

Le matériau 47 à très fort pouvoir d'amortissement disposé dans la cavité 45 du renfort arrière 15 permet de compenser une moindre épaisseur du renfort. Ce matériau 45 permet ainsi une plus grande mobilité de la tête tout en garantissant un haut degré de sécurité en cas de choc. En cas de choc, le plus souvent frontal, la tête est projetée en avant puis rebondit sur le torse vers l'arrière.The material 47 with very high damping capacity disposed in the cavity 45 of the rear reinforcement 15 makes it possible to compensate for a smaller thickness of the reinforcement. This material 45 thus allows greater mobility of the head while ensuring a high degree of safety in case of shock. In case of shock, usually frontal, the head is projected forward and then bounces on the torso backwards.

Avec le dispositif de protection 1 selon l'invention, le mouvement vers l'avant, le plus violent car étant le premier, est amorti par les renforts latéraux 11 et 13, réunis sous le menton. Puis le second mouvement vers l'arrière est amorti par le renfort arrière 15. Bien que moins violent, le mouvement vers l'arrière est le plus dangereux pour les vertèbres du rachis cervical. C'est le risque du « coup du lapin ». C'est pourquoi le renfort arrière 15 est plus haut, ou renforcé par le matériau 47 à très fort pouvoir amortissant.With the protection device 1 according to the invention, the forward movement, the most violent because being the first, is cushioned by the lateral reinforcements 11 and 13, gathered under the chin. Then the second backward movement is cushioned by the rear reinforcement 15. Although less violent, the backward movement is the most dangerous for the vertebrae of the cervical spine. This is the risk of "whiplash". This is why the rear reinforcement 15 is higher, or reinforced by the material 47 with very high damping power.

Le dispositif est également efficace contre les chocs latéraux, le cou étant entièrement entouré par le collier 4 de mousse.The device is also effective against side impacts, the neck being entirely surrounded by the foam collar 4.

La housse extérieure 53, hypoallergénique, assure un contact non irritant avec la peau du cou. Elle peut être changée facilement, en cas d'utilisateur différent ou en cas d'usure. En effet, la housse intérieure 51 garantit un enfilage facile de la housse extérieure 53. Les deux évidements scapulaires 35 et 37 qui permettent au dispositif de se positionner et de s'ancrer sur les épaules, rendent toute rotation substantielle du collier 4 impossible en présence du casque, l'espace E étant nettement inférieur à la hauteur hn ou hi3.The hypoallergenic outer cover 53 ensures non-irritating contact with the neck skin. It can be changed easily, in case of different user or in case of wear. Indeed, the inner cover 51 ensures easy donning of the outer cover 53. The two scapular recesses 35 and 37 which allow the device to be positioned and anchored on the shoulders, make any substantial rotation of the collar 4 impossible in the presence of the helmet, space E being well below the height hn or hi 3 .

En particulier, au moment du choc, le collier ne risque pas d'être éjecté ou déplacé. En cas d'incendie provoqué par un accident, le traitement ignifugeant qu'a subi le collier ralentit la propagation du feu.In particular, at the time of impact, the collar is not likely to be ejected or displaced. In case of a fire caused by an accident, the flame retardant treatment suffered by the collar slows the spread of fire.

L'assemblage du collier avec différents morceaux de mousse (deux demi-anneaux et trois renforts) permet d'optimiser les coûts de découpe et de matériau. De plus, la cavité 45 permet d'ajouter un matériau particulièrement amortisseur et éventuellement plus coûteux, mais en petite quantité, limité aux zones les plus sensibles.The assembly of the collar with different pieces of foam (two half-rings and three reinforcements) makes it possible to optimize cutting and material costs. In addition, the cavity 45 allows to add a particularly damping material and possibly more expensive, but in small quantities, limited to the most sensitive areas.

Ainsi l'invention permet une protection du rachis cervical lors d'un choc limitant les mouvements de la tête, pour un coût réduit. Thus the invention allows protection of the cervical spine during an impact limiting the movements of the head, for a reduced cost.

Claims

REVENDICATIONS 1. Dispositif (1) de protection du rachis cervical d'un individu (7), du type comprenant un casque (3) et un collier (4) annulaire de mousse adapté pour limiter les mouvements de la tête par rapport au tronc, le collier (4) comprenant, sur sa face inférieure (29), deux évidements scapulaires (35, 37) adaptés pour s'emboîter sur les épaules (5), le collier (4) étant adapté pour être retenu en place par le casque (3), caractérisé en ce que le collier (4) comprend deux demi-anneaux (17, 19) de mousse collés entre eux par une de leurs extrémités respectives. 1. Device (1) for protecting the cervical spine of an individual (7), of the type comprising a helmet (3) and an annular collar (4) of foam adapted to limit the movements of the head relative to the trunk, the collar (4) comprising, on its underside (29), two scapular recesses (35, 37) adapted to fit on the shoulders (5), the collar (4) being adapted to be retained in place by the helmet ( 3), characterized in that the collar (4) comprises two half-rings (17, 19) of foam bonded together by one of their respective ends. 2. Dispositif (1) selon la revendication 1 , caractérisé en ce que le collier (4) comprend une zone arrière (15) et deux zones latérales (11 , 13) de hauteur relativement grande, les évidements scapulaires (35, 37) étant constitués par des espaces ménagés entre la zone arrière et respectivement chaque zone latérale. 2. Device (1) according to claim 1, characterized in that the collar (4) comprises a rear zone (15) and two lateral zones (11, 13) of relatively large height, the scapular recesses (35, 37) being constituted by spaces formed between the rear zone and respectively each lateral zone. 3. Dispositif selon la revendication 2, caractérisé en ce que la zone arrière (15) a une hauteur plus grande que les zones latérales (11 , 13).3. Device according to claim 2, characterized in that the rear zone (15) has a height greater than the lateral zones (11, 13). 4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le collier (4) est en forme de torque adapté pour être passé autour du cou par écartement et fermé par mise en contact de ses extrémités, et comporte des moyens libérables (55, 57) de maintien en position fermée.4. Device according to any one of the preceding claims, characterized in that the collar (4) is in the form of torque adapted to be passed around the neck by spacing and closed by contacting its ends, and comprises releasable means (55, 57) for holding in the closed position. 5. Dispositif selon la revendication 2 ou 3, caractérisé en ce qu'il comprend trois morceaux (11 , 13, 15) de mousse en forme de section d'anneau, les morceaux de mousse étant collés sous les deux demi-anneaux (17, 19) et formant les zones (11 , 13, 15) de hauteur relativement grande. 5. Device according to claim 2 or 3, characterized in that it comprises three pieces (11, 13, 15) of foam in the form of a ring section, the pieces of foam being glued under the two half-rings (17). 19) and forming the zones (11, 13, 15) of relatively large height. 6. Dispositif (1) selon la revendication 5, caractérisé en ce que le morceau de mousse (15) formant la zone arrière de hauteur relativement grande est collé à cheval sous les deux demi-anneaux (17, 19).6. Device (1) according to claim 5, characterized in that the piece of foam (15) forming the rear zone of relatively large height is bonded astride under the two half-rings (17, 19). 7. Dispositif (1) selon la revendication 5 ou 6, caractérisé en ce que certaines au moins des faces de collage comportent des stries (33) adaptées pour améliorer l'accrochage mécanique de la colle. 7. Device (1) according to claim 5 or 6, characterized in that at least some of the bonding faces comprise streaks (33) adapted to improve the mechanical attachment of the glue. 8. Dispositif (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le collier (4) comprend deux housses (51 , 53) en tissu élastique dans deux directions, le collier (4) étant enveloppé dans une première housse (51), adaptée pour comprimer le collier (4), puis dans une seconde housse (53), le tissu constituant la seconde housse (53) étant en outre hypoallergénique.8. Device (1) according to any one of the preceding claims, characterized in that the collar (4) comprises two covers (51, 53) of elastic fabric in two directions, the collar (4) being wrapped in a first cover (51), adapted to compress the collar (4), then in a second cover (53), the fabric constituting the second cover (53) being further hypoallergenic. 9. Dispositif (1 ) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend un bloc de matériau amortisseur (47) disposé dans une cavité (45) prévue dans au moins l'une des zones (11 , 13, 15) de hauteur plus grande.9. Device (1) according to any one of the preceding claims, characterized in that it comprises a block of damping material (47) disposed in a cavity (45) provided in at least one of the zones (11, 13). , 15) of greater height. 10. Dispositif (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que les évidements scapulaires (35, 37) présentent des faces latérales inclinées (41 ) adaptées à la forme d'une épaule (5). 10. Device (1) according to any one of the preceding claims, characterized in that the scapular recesses (35, 37) have inclined lateral faces (41) adapted to the shape of a shoulder (5). 11. Dispositif (1 ) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend deux rubans élastiques (59) entourant le collier (4) chacun au niveau d'un évidement scapulaire (35, 37), chaque ruban (59) comprenant une surface inférieure recouverte d'un matériau anti-glisse (61). 11. Device (1) according to any one of the preceding claims, characterized in that it comprises two elastic bands (59) surrounding the collar (4) each at a scapular recess (35, 37), each ribbon (59) comprising a bottom surface covered with anti-slip material (61). 12. Dispositif (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la mousse composant le collier (4) a une résistance à la compression comprise, pour des valeurs de pénétration de 10%, 25% et 50%, entre respectivement 15 kPa et 20 kPa, 30 kPa et 40 kPa, et 75 kPa et 100 kPa, selon la norme ISO 844. 12. Device (1) according to any one of the preceding claims, characterized in that the foam component collar (4) has a compressive strength, for penetration values of 10%, 25% and 50%, between 15 kPa and 20 kPa, 30 kPa and 40 kPa, and 75 kPa and 100 kPa, respectively, according to ISO 844. 13. Dispositif (1 ) selon l'une quelconque des revendications précédentes, caractérisé en ce que la mousse composant le collier (4), les housses (51 , 53), les moyens libérables (55, 57) de maintien en position fermée et les deux rubans élastiques (59) sont ignifugés.13. Device (1) according to any one of the preceding claims, characterized in that the foam component of the collar (4), the covers (51, 53), the releasable means (55, 57) for holding in the closed position and the two elastic ribbons (59) are fireproof. 14. Dispositif (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que, en utilisation normale, la base du casque (3) est espacée de la face supérieure (27) du collier (4). 14. Device (1) according to any one of the preceding claims, characterized in that, in normal use, the base of the helmet (3) is spaced from the upper face (27) of the collar (4). 15. Collier (4) pour un dispositif selon l'une quelconque des revendications 1 à 14. 15. Collar (4) for a device according to any one of claims 1 to 14.
PCT/FR2006/002901 2005-12-30 2006-12-28 Device for protecting the cervical spine of an individual, and corresponding collar WO2007077368A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0513505A FR2895645B1 (en) 2005-12-30 2005-12-30 DEVICE FOR PROTECTING THE CERVICAL SPINE OF AN INDIVIDUAL AND CORRESPONDING NECKLACE
FR0513505 2005-12-30

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WO2007077368A2 true WO2007077368A2 (en) 2007-07-12
WO2007077368A3 WO2007077368A3 (en) 2007-09-13

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FR (1) FR2895645B1 (en)
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Cited By (3)

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EP3558044A4 (en) * 2017-01-25 2020-11-18 Bell Sports, Inc. HELMET WITH INTEGRATED SHOULDER PAD
US11202954B2 (en) 2017-12-21 2021-12-21 Rawlings Sporting Goods Company, Inc. Hinged leg guard
USD967543S1 (en) 2018-01-25 2022-10-18 Bell Sports, Inc. Helmet with integrated shoulder pad

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IT1392307B1 (en) * 2008-12-09 2012-02-24 Dainese Spa PERSONAL PROTECTION DEVICE AND INCORPORATING GARMENT OF THIS DEVICE.
ES2390011T3 (en) 2008-12-09 2012-11-05 Dainese S.P.A. Protection device comprising an inflatable element
ATE544362T1 (en) 2008-12-09 2012-02-15 Dainese Spa GARMENT SUITABLE FOR ASSIGNMENT TO A DEVICE FOR THE PERSONAL PROTECTION OF A USER
IT201700111854A1 (en) * 2017-10-05 2019-04-05 Free Minds Srl COLLAR OF PROTECTION FOR RACING, IN PARTICULAR OF GO-KART

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US3497872A (en) * 1968-08-02 1970-03-03 Richard Travis Mitchell Neck protector
AU6967696A (en) * 1996-09-06 1998-03-26 Powersports Safety Corporation Neck, collar bone, and spinal cord protection assembly
SE507425C2 (en) * 1996-10-25 1998-05-25 Joergen Lerjestad Device for preventing whiplash injuries
AUPR474501A0 (en) * 2001-05-03 2001-05-31 Cleveland, Paul Protective collar
DE202005014107U1 (en) * 2005-09-07 2005-11-17 Semsch, Hartmut Device for stabilizing and damping the head of the wearer of a crash helmet comprises a base body having sides which are provided with an incline so that a support for the device is created in the direction of the upper chest region

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3558044A4 (en) * 2017-01-25 2020-11-18 Bell Sports, Inc. HELMET WITH INTEGRATED SHOULDER PAD
US10939721B2 (en) 2017-01-25 2021-03-09 Bell Sports, Inc. Helmet with integrated shoulder pad
US20210161240A1 (en) * 2017-01-25 2021-06-03 Bell Sports, Inc. Helmet with integrated shoulder pad
EP4101329A1 (en) * 2017-01-25 2022-12-14 Bell Sports, Inc. Helmet with integrated shoulder pad
US11589631B2 (en) 2017-01-25 2023-02-28 Bell Sports, Inc. Helmet with integrated shoulder pad
US11758965B2 (en) 2017-01-25 2023-09-19 Bell Sports, Inc. Helmet with integrated shoulder pad
US11202954B2 (en) 2017-12-21 2021-12-21 Rawlings Sporting Goods Company, Inc. Hinged leg guard
USD967543S1 (en) 2018-01-25 2022-10-18 Bell Sports, Inc. Helmet with integrated shoulder pad

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WO2007077368A3 (en) 2007-09-13
FR2895645B1 (en) 2008-07-18

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