EP0645099A1 - Helmet - Google Patents
Helmet Download PDFInfo
- Publication number
- EP0645099A1 EP0645099A1 EP94870153A EP94870153A EP0645099A1 EP 0645099 A1 EP0645099 A1 EP 0645099A1 EP 94870153 A EP94870153 A EP 94870153A EP 94870153 A EP94870153 A EP 94870153A EP 0645099 A1 EP0645099 A1 EP 0645099A1
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- EP
- European Patent Office
- Prior art keywords
- arch
- helmet
- helmet according
- shell
- chin
- 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.)
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- 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
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- 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
Definitions
- the present invention relates to a helmet, in particular for a motorcyclist, comprising a skull cap protection cap consisting of an outer shell and an inner shell having a determined thickness and extending along said outer shell as well than a chin rest.
- the invention aims to solve this problem. To this end, it is provided, according to the invention, to arrange a hoop in the lower part of the helmet, on the periphery of the latter, and substantially at the level of the chin strap.
- FIG. 1 illustrates a view of the helmet according to the invention.
- FIGS. 2 and 3 illustrate a plan and side view of an arch provided for the helmet illustrated in FIG. 1.
- Figure 4 illustrates an open section of the roll bar.
- FIG. 5 illustrates a device for closing the hoop according to FIG. 4.
- FIG. 6 illustrates a view in partial section of the helmet according to the invention, along the line AA ' in FIG. 1.
- the helmet according to the present invention aims to strengthen the protection, in particular at the level of the lower face.
- the main purpose of the helmet is to protect the head when accidents occur, whether for motorcyclists, rally or Formula 1 drivers or, where appropriate, for certain types of work during the accomplishment missions presenting a certain risk of accident involving a shock to the head.
- the example described below primarily concerns helmets for motorcyclists.
- a helmet 1 generally comprises a cap 2 provided to protect the skull.
- the cap 2 itself comprises an outer shell 3 made of a hard material and an inner shell 4 and extending over practically the entire inner surface of said outer shell.
- the inner shell 4 is produced in the form of a cushioning envelope made of a damping material, preferably covered with a fabric.
- the material of this envelope is further provided to ensure perfect adaptation to the head of the helmet wearer.
- the envelope has a determined thickness, which, as illustrated, is substantially greater than that of the outer shell 3, so as to ensure effective shock absorption in the event of an accident or fall.
- the helmet 1 also includes a retaining device 26 allowing the helmet to be held and positioned appropriately on the head.
- a visor 12 or a screen is also provided.
- the protection of the lower face is advantageously provided by a chin strap 5 as provided in so-called full face helmets.
- helmet safety is further underlined by the fact that in many legislations, standardizations have been provided for imposing compliance with certain standards according to order criteria as much geometric, in particular as for the positioning of the helmet, the minimum area of skull coverage and the field of vision, as mechanical, in particular as for the damping efficiency, the helmet holding capacity and the rigidity.
- the chin rest includes, like the cap 2 described above, an outer shell 6 made of a hard material and an inner padding 7 connected to the outer shell 6 of the chin rest 5.
- the chin rests are generally provided with an interior covering. can absorb frontal impact with some efficiency.
- the thickness of the padding layer of the chin rest cannot from a practical point of view and for reasons of space, reach that of the padding envelope of the covering cap of the cranial box, this which sets the limit of the protection provided by the classic chin rest.
- a reinforcing arch is provided in the chin guard, which extends along its entire width, for example by crossing it right through. As illustrated in Figure 2 the arch extends for example along a substantially ovoid contour adapted to the lower contour of the helmet at the height of the chin strap.
- the roll bar passes along the base periphery of the helmet up to the rear part of it by crossing the cap at the base of it.
- the hoop according to the invention has a slightly bent profile at an angle ⁇ .
- the angle ⁇ which is for example between 5 and 20 °, preferably about 10 °, is intended to match the inclined shape of the base of the helmet.
- the arch is made so as to take up the compression forces by a vault effect, the arch having an appropriate shape.
- the arch is for example made of a metallic material, such as a light aluminum alloy such as duralumin®, but other materials such as fiberglass, carbon or the like can also be used.
- the hoop advantageously has a practically circular tubular section, so as to occupy only a reduced bulk while preserving excellent rigidity.
- the arch is open, for example at the rear 23 as illustrated in FIG. 4, the closure of the latter being ensured by fitting 25 onto a sleeve 24 as shown in FIG. 5.
- one of the ends 23 of the arch 10 is crimped onto the sleeve 24.
- the arch effect of the arch during compression forces in the event of external stress due to a shock for example is perfectly ensured and it allows furthermore a very convenient lateral extension of the arch. This ensures very easy and quick donning of the helmet.
- the speed with which the helmet is put on can prove to be an important factor in competition, for example, where every second is precious.
- the headband is arranged as low as possible relative to the helmet, at the place of minimum rigidity outer hulls, that is to say at their base.
- a chin strap 18,19 which completes the covering of the helmet.
- Said chin strap lining 18.19 while making it possible to hide any imperfections on the base surface of the cap 2 and of the chin strap respectively and by providing the helmet with a better coefficient cx, ensures the positioning of the arch, forming a support both in the chin rest 5 and in the cap 2.
- a space 28.29 is provided between the pads 7 and the respective linings 18.19.
- the chin padding 7 and the padding envelope 4 of the cap are each made with a profiled base so that the arch is perfectly integrated between the linings and the respective padding.
- excellent stability of the arch 10 in the helmet 1 is obtained.
- each padding has at the base of each of these a shoulder 16,17 which is turned towards the corresponding outer shell 6, as it appears from FIG. 1.
- the shoulder 17 is arranged at a height of the padding 7 which corresponds substantially to the cross section of the arch 10.
- the shoulder 17 extends over a depth of the pad 7 also corresponding to the cross section of the 'hoop.
- the padding 7 of chin rest thus ends with a protruding nose 13 connected to the main body with the formation of an elbow 14 at the junction zone between the nose and the main body.
- the curvature of the elbow 14 is adaptable to the section of the arch 10, so as to thus ensure perfect positioning of the arch on the chin side.
- the integration of the headband does not complicate the general assembly of the helmet.
- the aforementioned fittings are preferably removable, access to the arch is facilitated.
- the specific arrangement of the roll bar makes it possible to prevent the voluntary removal of the helmet from being hindered, in particular by the wearer himself, or the intervention of medical personnel in the event of an accident being prevented or even complicated.
- a similar shoulder profile 16 is provided on the cap side, the height of the shoulder 16 being lower in this case given the arrangement between the base of the padding casing 4 and the lining 18 of an insert 21.
- Side cap the integration of the arch in the helmet is therefore ensured by the maintenance of the arch between on the one hand the shoulder 16, in particular in the bent portion, and the insert 21 and on the other hand the lining arranged in the extension of the outer shell 3.
- the interior linings are made up, as shown in FIG. 6, of an assembly of comfort foams 30 attached to a rigid frame 32, of determined shape, and made of expanded polystyrene.
- This frame 32 has the advantage that the material used is a good shock absorber.
- complex shapes allowing the arch to be held in the interior profile are obtained.
- a curve 33 is further imparted to the interior linings ensuring good contact with the face, thus improving noticeably comfort.
- the whole is wrapped in fabric, for example in the manner of a slipper 34, which also serves to hold the arch in space 35.
- the integration of the headband to the injected helmets made of thermoplastic material makes it possible to reinforce the lateral rigidity of these helmets at the lower level of the cap.
- the increase in rigidity brings increased security, the helmet then being liable to withstand greater shocks.
- the shock absorption tests testify to the influence of repeated shocks: indeed if the first shocks are easily absorbed, it is not the same for the following shocks. Too much deformation of the outer shell during the first shocks leads to deterioration of the damping element, which is then no longer able to fulfill its role during subsequent shocks which may occur during the same accident.
- the arrangement of a hoop making it possible to considerably reinforce the lateral rigidity of the helmet therefore proves to be very important.
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- Helmets And Other Head Coverings (AREA)
Abstract
Description
La présente invention se rapporte à un casque, en particulier pour motocycliste, comprenant une calotte de protection de la boîte crânienne constituée d'une coque extérieure et d'une coque intérieure présentant une épaisseur déterminée et s'étendant le long de ladite coque extérieure ainsi qu'une mentonnière.The present invention relates to a helmet, in particular for a motorcyclist, comprising a skull cap protection cap consisting of an outer shell and an inner shell having a determined thickness and extending along said outer shell as well than a chin rest.
Les casques connus du type indiqué ci-dessus offrent une bonne protection de la boîte crânienne.Known helmets of the type indicated above offer good protection of the skull.
Une autre partie du visage, à savoir le bas du visage, doit néanmoins également bénéficier d'une protection efficace. A cet égard, les casques dits intégraux sont déjà connus. Ce type de casque est pourvu d'une mentonnière qui assure déjà une protection maxillaire certaine par rapport aux casques ouverts.Another part of the face, namely the lower face, must however also benefit from effective protection. In this regard, so-called full-face helmets are already known. This type of helmet is provided with a chin guard which already provides certain maxillary protection compared to open helmets.
Néanmoins, l'excellente protection, qui est assurée à la boîte crânienne grâce à la combinaison des coques extérieure et intérieure, ne peut pas être obtenue dans une même mesure pour le bas du visage. En effet, il s'avère fort peu commode de doubler la coque extérieure de la mentonnière d'une coque intérieure de même épaisseur qu'au niveau de la boîte crânienne car cela poserait un problème pratique quant à l'encombrement ainsi provoqué au niveau de la mentonnière.However, the excellent protection, which is provided to the skull through the combination of the outer and inner shells, cannot be obtained to the same extent for the lower face. Indeed, it turns out to be very inconvenient to double the outer shell of the chin rest with an inner shell of the same thickness as at the level of the cranial box because this would pose a practical problem as regards the bulk thus caused at the level of the chin rest.
L'invention a pour but de résoudre ce problème. A cet fin, il est prévu, selon l'invention, d'agencer un arceau dans la partie inférieure du casque, sur le pourtour de de celui-ci, et sensiblement à hauteur de la mentonnière.The invention aims to solve this problem. To this end, it is provided, according to the invention, to arrange a hoop in the lower part of the helmet, on the periphery of the latter, and substantially at the level of the chin strap.
Ainsi, grâce à l'agencement de l'arceau précité suivant l'invention, une bonne rigidité latérale du casque au niveau inférieur de la calotte ainsi que de la mentonnière est obtenue. Ladite rigidité du casque procure une sécurité renforcée pour le motocycliste car le casque assure ainsi une meilleure tenue aux chocs.Thus, thanks to the arrangement of the aforementioned arch according to the invention, good lateral rigidity of the helmet at the lower level of the cap as well as of the chin rest is obtained. Said rigidity of the helmet provides increased security for the motorcyclist because the helmet thus provides better resistance to shocks.
D'autres particularités du casque selon l'invention sont définies dans les sous-revendications.Other features of the helmet according to the invention are defined in the subclaims.
Des avantages supplémentaires ressortiront de la description plus détaillée donnée ci-après d'un exemple de réalisation du casque selon l'invention illustré à l'aide des dessins annexés.Additional advantages will emerge from the more detailed description given below of an embodiment of the helmet according to the invention illustrated with the aid of the appended drawings.
La figure 1 illustre une vue du casque selon l'invention.
Les figures 2 et 3 illustrent une vue en plan et latérale d'un arceau prévu pour le casque illustré sur la figure 1.
La figure 4 illustre une section ouverte de l'arceau.
La figure 5 illustre un dispositif de fermeture de l'arceau selon la figure 4.
La figure 6 illustre une vue en coupe partielle du casque suivant l'invention, selon la ligne AA' dans la figure 1.Figure 1 illustrates a view of the helmet according to the invention.
FIGS. 2 and 3 illustrate a plan and side view of an arch provided for the helmet illustrated in FIG. 1.
Figure 4 illustrates an open section of the roll bar.
FIG. 5 illustrates a device for closing the hoop according to FIG. 4.
FIG. 6 illustrates a view in partial section of the helmet according to the invention, along the line AA ' in FIG. 1.
De manière générale, le casque selon la présente invention vise à renforcer la protection notamment à hauteur du bas du visage.In general, the helmet according to the present invention aims to strengthen the protection, in particular at the level of the lower face.
Le casque a essentiellement pour objet d'assurer la protection de la tête lorsque des accidents surviennent, que ce soit pour des motocyclistes, des pilotes de rallyes automobiles ou de formule 1 ou, le cas échéant, pour certains types de travaux lors de l'accomplissement de missions présentant un certain risque d'accident impliquant un choc au niveau de la tête. L'exemple décrit ci-après concerne au premier chef les casques pour motocyclistes.The main purpose of the helmet is to protect the head when accidents occur, whether for motorcyclists, rally or Formula 1 drivers or, where appropriate, for certain types of work during the accomplishment missions presenting a certain risk of accident involving a shock to the head. The example described below primarily concerns helmets for motorcyclists.
Comme illustré sur la figure 1, un casque 1 comprend généralement une calotte 2 prévue pour assurer la protection de la boîte crânienne. La calotte 2 comporte elle-même une coque extérieure 3 réalisée en un matériau dur et une coque intérieure 4 et s'étendant sur pratiquement toute la surface intérieure de ladite coque extérieure. La coque intérieure 4 est réalisée sous forme d'une enveloppe de rembourrage en un matériau amortisseur, de préférence recouverte d'un tissus. Le matériau de cette enveloppe est en outre prévu pour assurer une parfaite adaptation à la tête du porteur du casque. De plus, l'enveloppe présente une épaisseur déterminée, qui, comme illustré, est sensiblement supérieure à celle de la coque extérieure 3, de manière à assurer un amortissement efficace des chocs en cas d'accident ou de chute.As illustrated in FIG. 1, a helmet 1 generally comprises a
Le casque 1 comprend également un dispositif de retenue 26 permettant le maintien et le positionnement approprié du casque sur la tête. Afin d'assurer la protection des yeux tout en maintenant un champ de vision suffisant, une visière 12 ou un écran est également prévu. La protection du bas du visage est avantageusement assurée par une mentonnière 5 telle que prévue dans les casques dits intégraux.The helmet 1 also includes a
L'aspect primordial de la sécurité des casques est encore souligné par le fait que dans de nombreuses législations, des normalisations ont été prévues imposant le respect de certaines normes d'après des critères d'ordre tant géométrique, notamment quant au positionnement du casque, à la zone minimum de couverture du crâne et au champ de vision, que mécanique, notamment quant à l'efficacité d'amortissement, à la capacité de retenue du casque et à la rigidité.The paramount aspect of helmet safety is further underlined by the fact that in many legislations, standardizations have been provided for imposing compliance with certain standards according to order criteria as much geometric, in particular as for the positioning of the helmet, the minimum area of skull coverage and the field of vision, as mechanical, in particular as for the damping efficiency, the helmet holding capacity and the rigidity.
Concernant la protection du bas du visage et des maxillaires dans leur ensemble, une amélioration a déjà été apportée de manière connue avec les casques intégraux. Ce type de casque présente une mentonnière 5 prévue pour être placée en regard des maxillaires de manière à protéger celles-ci. La mentonnière comprend, tout comme la calotte 2 décrite ci-dessus, une coque extérieure 6 en un matériau dur et un rembourrage intérieur 7 se rattachant à la coque extérieure 6 de la mentonnière 5. Ainsi les mentonnières étant généralement pourvues d'un habillage intérieur peuvent amortir les chocs frontaux avec une certaine efficacité. Toutefois, l'épaisseur de la couche de rembourrage de la mentonnière ne peut pas d'un point de vue pratique et pour des raisons d'encombrement, atteindre celle de l'enveloppe de rembourrage de la calotte de recouvrement de la boîte crânienne, ce qui pose la limite de la proctection assurée par la mentonnière classique.Concerning the protection of the lower face and the jaws as a whole, an improvement has already been made in a known manner with full-face helmets. This type of helmet has a chin guard 5 intended to be placed opposite the jaws so as to protect them. The chin rest includes, like the
Dans le but de renforcer considérablement le casque à hauteur de la mentonnière ne possédant qu'une épaisseur de rembourrage de mentonnière réduite tout en restant dans des limites d'encombrement acceptables, un arceau de renforcement est prévu dans la mentonnière, lequel s'étend le long de celle-ci sur toute sa largeur, par exemple en traversant celle-ci de part en part. Comme illustré sur la figure 2 l'arceau s'étend par exemple suivant un contour sensiblement ovoïdal adapté au contour inférieur du casque à hauteur de la mentonnière. Par exemple, l'arceau passe le long du pourtour de base du casque jusque dans la partie arrière de celui-ci en traversant la calotte, à la base de celle-ci.In order to considerably strengthen the helmet up to the chin rest having only a reduced thickness of chin padding while remaining within acceptable space limits, a reinforcing arch is provided in the chin guard, which extends along its entire width, for example by crossing it right through. As illustrated in Figure 2 the arch extends for example along a substantially ovoid contour adapted to the lower contour of the helmet at the height of the chin strap. For example, the roll bar passes along the base periphery of the helmet up to the rear part of it by crossing the cap at the base of it.
Dans la figure 3 l'arceau selon l'invention, présente un profil légèrement plié sur un angle α. L'angle α,qui est par exemple compris entre 5 et 20°, de préférence environ 10°, est destiné à épouser la forme inclinée de la base du casque.In Figure 3 the hoop according to the invention has a slightly bent profile at an angle α. The angle α, which is for example between 5 and 20 °, preferably about 10 °, is intended to match the inclined shape of the base of the helmet.
L'arceau est réalisé de manière à reprendre les efforts de compression par un effet de voûte, l'arceau possédant une forme appropriée. L'arceau est par exemple constitué d'un matériau métallique, tel un alliage léger d'aluminium tel que du duralumin®, mais d'autres matériaux tels que de la fibre de verre, de carbone ou autres peuvent également être utilisés. L'arceau présente avantageusement une section tubulaire pratiquement circulaire, de manière à n'occuper qu'un encombrement réduit tout en préservant une excellente rigidité.The arch is made so as to take up the compression forces by a vault effect, the arch having an appropriate shape. The arch is for example made of a metallic material, such as a light aluminum alloy such as duralumin®, but other materials such as fiberglass, carbon or the like can also be used. The hoop advantageously has a practically circular tubular section, so as to occupy only a reduced bulk while preserving excellent rigidity.
De préférence, l'arceau est ouvert par exemple à l'arrière 23 comme illustré surla figure 4, la fermeture de celui-ci étant assurée par emboîtement 25 sur un manchon 24 comme représenté sur la figure 5. Ainsi, l'une des extrémités 23 de l'arceau 10 est sertie sur le manchon 24. De la sorte, l'effet de voûte de l'arceau lors d'efforts de compression en cas de contrainte extérieure due à un choc par exemple, est parfaitement assuré et il permet en outre une extension latérale très commode de l'arceau. Ceci assure un enfilage très aisé et rapide du casque. La rapidité d'enfilage du casque peut s'avérer un facteur important en compétition par exemple, où chaque seconde est précieuse.Preferably, the arch is open, for example at the
De préférence, l'arceau est agencé le plus bas possible par rapport au casque, à l'endroit de rigidité minimale des coques extérieures, c'est-à-dire à leur base. A cet emplacement de chaque coque est prévue une garniture de mentonnière 18,19, qui termine l'habillage du casque. Ladite garniture de mentonnière 18,19, tout en permettant de cacher les imperfections éventuelles à la surface de base de la calotte 2 et de la mentonnière respectivement et en procurant au casque un meilleur coefficient cx, assure la mise en place de l'arceau, en formant support tant dans la mentonnière 5 que dans la calotte 2.Preferably, the headband is arranged as low as possible relative to the helmet, at the place of minimum rigidity outer hulls, that is to say at their base. At this location of each shell is provided a
A cette fin, un espace 28,29 est prévu entre les rembourrages 7 et les garnitures 18,19 respectives. De préférence, le rembourrage de mentonnière 7 et l'enveloppe de rembourrage 4de la calotte sont réalisés chacun avec une base profilée de manière que l'arceau soit parfaitement intégré entre les garnitures et les rembourrages respectifs. Ainsi, une excellente stabilité de l'arceau 10 dans le casque 1 est obtenue.To this end, a space 28.29 is provided between the
Avantageusement, le profilé de chaque rembourrage présente à la base de chacun de ceux-ci un épaulement 16,17 qui est tourné vers la coque extérieure correspondante 6, ainsi qu'il apparaît de la figure 1. De préférence, côté mentonnière, l'épaulement 17 est agencé à une hauteur du rembourrage 7 qui correspond sensiblement à la section transversale de l'arceau 10. En outre, l'épaulement 17 s'étend sur une profondeur du rembourrage 7 correspondant quant à elle également à la section transversale de l'arceau. Le rembourrage 7 de mentonnière se termine ainsi par un nez 13 faisant saillie se rattachant au corps principal avec formation d'un coude 14 à la zone de jonction entre le nez et le corps principal. La courbure du coude 14 est adaptable à la section de l'arceau 10, de manière à assurer ainsi une mise en place parfaite de l'arceau côté mentonnière.Advantageously, the profile of each padding has at the base of each of these a
Ainsi, même en cas de choc violent, l'arceau reste en place, de sorte que l'arceau ne peut pas occasionner de blessures au porteur du casque en cas d'accident.Thus, even in the event of a violent impact, the roll bar remains in place, so that the roll bar cannot cause injury to the wearer of the helmet in the event of an accident.
En outre, l'intégration de l'arceau ne complique pas l'assemblage général du casque. Les garnitures précitées étant de préférence amovibles, l'accès à l'arceau s'en trouve facilité. L'agencement spécifique de l'arceau permet d'éviter que ne soit entravé le déchaussement volontaire du casque, notamment par le porteur lui même, ou que ne soit empêchée ou même compliquée l'intervention du personnel médical en cas d'accident.In addition, the integration of the headband does not complicate the general assembly of the helmet. The aforementioned fittings are preferably removable, access to the arch is facilitated. The specific arrangement of the roll bar makes it possible to prevent the voluntary removal of the helmet from being hindered, in particular by the wearer himself, or the intervention of medical personnel in the event of an accident being prevented or even complicated.
Un profilé à épaulement 16 analogue est prévu côté calotte, la hauteur de l'épaulement 16 étant inférieure dans ce cas étant donné l'agencement entre la base de l'enveloppe de rembourrage 4 et de la garniture 18 d'une pièce rapportée 21. Côté calotte, l'intégration de l'arceau dans le casque est donc assurée par le maintien de l'arceau entre d'une part l'épaulement 16, en particulier dans la portion coudée, et la pièce rapportée 21 et d'autre part la garniture agencée dans le prolongement de la coque extérieure 3.A similar shoulder profile 16 is provided on the cap side, the height of the shoulder 16 being lower in this case given the arrangement between the base of the
Concernant les habillages intérieurs, ils sont constitués comme visible sur la figure 6, d'un assemblage de mousses de confort 30 rapportés sur une armature rigide 32, de forme déterminée, et réalisée en polystyrène expansé. Cette armature 32 présente l'avantage que le matériau utilisé est un bon amortisseur de chocs. De plus, par la mise en oeuvre d'un procédé d'injection, des formes complexes permettant le maintien de l'arceau dans le profilé intérieur sont obtenues. Ainsi un galbe 33 est en outre conféré aux habillages intérieurs assurant un bon contact avec le visage, améliorant ainsi sensiblement le confort. Le tout est enveloppé dans du tissu par exemple à la manière d'un chausson 34, qui sert également à maintenir l'arceau dans l'espace 35.As regards the interior linings, they are made up, as shown in FIG. 6, of an assembly of comfort foams 30 attached to a
Il est prévu de manière analogue pour l'habillage de la mentonnière une armature en polystyrène expansé recouverte par thermocollage d'une pellicule de par exemple 2 mm de mousse de polyéthylène.Likewise, there is provision for covering the chin rest an expanded polystyrene frame covered by heat sealing with a film of, for example, 2 mm of polyethylene foam.
L'utilisation d'une armature de polystyrène expansé de densité moyenne pour tous les composants intérieurs assure le maintien en place de l'arceau. En effet, l'armature de ces composants s'emboîte avec le composant voisin pour former à l'intérieur du casque une véritable voûte l'arceau est alors pris en sandwich entre cette armature de polystyrène et le profilé injecté inférieur comme illustré sur la figure 6.The use of a medium density expanded polystyrene frame for all the interior components ensures that the roll bar is held in place. Indeed, the frame of these components fits with the neighboring component to form inside the helmet a real arch the arch is then sandwiched between this polystyrene frame and the lower injected profile as illustrated in the figure 6.
L'intégration de l'arceau aux casques injectés en matière thermoplastique permet de renforcer la rigidité latérale de ces casques au niveau inférieur de la calotte. L'augmentation de rigidité amène à son tour une sécurité renforcée, le casque étant alors susceptible d'encaisser des chocs plus importants. Les essais d'amortissement des chocs témoignent de l'influence des chocs répétés : en effet si les premiers chocs sont facilement amortis, il n'en est pas de même pour les chocs suivants. Une déformation trop importante de la coque extérieure lors des premiers chocs entraîne une détérioration de l'élément amortisseur, qui n'est alors plus à même d'assurer son rôle lors des chocs ultérieurs pouvant survenir lors d'un même accident. L'agencement d'un arceau permettant de renforcer considérablement la rigidité latérale du casque s'avère donc très importante.The integration of the headband to the injected helmets made of thermoplastic material makes it possible to reinforce the lateral rigidity of these helmets at the lower level of the cap. The increase in rigidity in turn brings increased security, the helmet then being liable to withstand greater shocks. The shock absorption tests testify to the influence of repeated shocks: indeed if the first shocks are easily absorbed, it is not the same for the following shocks. Too much deformation of the outer shell during the first shocks leads to deterioration of the damping element, which is then no longer able to fulfill its role during subsequent shocks which may occur during the same accident. The arrangement of a hoop making it possible to considerably reinforce the lateral rigidity of the helmet therefore proves to be very important.
Claims (10)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE9301004 | 1993-09-24 | ||
| BE9301004A BE1007519A3 (en) | 1993-09-24 | 1993-09-24 | Helmet. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0645099A1 true EP0645099A1 (en) | 1995-03-29 |
| EP0645099B1 EP0645099B1 (en) | 1998-08-12 |
Family
ID=3887364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94870153A Expired - Lifetime EP0645099B1 (en) | 1993-09-24 | 1994-09-26 | Helmet |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0645099B1 (en) |
| AT (1) | ATE169460T1 (en) |
| BE (1) | BE1007519A3 (en) |
| DE (1) | DE69412402T2 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1729421U (en) * | 1956-04-10 | 1956-09-06 | Walter Draebing | PROTECTIVE HELMET FOR MOTORCYCLISTS. |
| FR1558613A (en) * | 1967-02-06 | 1969-02-28 | ||
| US3763494A (en) * | 1972-01-24 | 1973-10-09 | R Nordskog | Power boat racing helmet |
| DE3017099A1 (en) * | 1980-05-03 | 1981-11-19 | Schuberth-Werk Gmbh & Co Kg, 3300 Braunschweig | Crash helmet with fastening groove - which is open on inner helmet side with closed ends, and has padding with bead at outer edge |
| DE3419302A1 (en) * | 1984-05-24 | 1985-11-28 | Hans 6950 Mosbach Voss | Protective helmet for motorcyclists/drivers |
-
1993
- 1993-09-24 BE BE9301004A patent/BE1007519A3/en not_active IP Right Cessation
-
1994
- 1994-09-26 EP EP94870153A patent/EP0645099B1/en not_active Expired - Lifetime
- 1994-09-26 AT AT94870153T patent/ATE169460T1/en not_active IP Right Cessation
- 1994-09-26 DE DE69412402T patent/DE69412402T2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1729421U (en) * | 1956-04-10 | 1956-09-06 | Walter Draebing | PROTECTIVE HELMET FOR MOTORCYCLISTS. |
| FR1558613A (en) * | 1967-02-06 | 1969-02-28 | ||
| US3763494A (en) * | 1972-01-24 | 1973-10-09 | R Nordskog | Power boat racing helmet |
| DE3017099A1 (en) * | 1980-05-03 | 1981-11-19 | Schuberth-Werk Gmbh & Co Kg, 3300 Braunschweig | Crash helmet with fastening groove - which is open on inner helmet side with closed ends, and has padding with bead at outer edge |
| DE3419302A1 (en) * | 1984-05-24 | 1985-11-28 | Hans 6950 Mosbach Voss | Protective helmet for motorcyclists/drivers |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE169460T1 (en) | 1998-08-15 |
| BE1007519A3 (en) | 1995-07-25 |
| EP0645099B1 (en) | 1998-08-12 |
| DE69412402D1 (en) | 1998-09-17 |
| DE69412402T2 (en) | 1999-02-25 |
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