EP0130108B1 - Protective helmet - Google Patents

Protective helmet Download PDF

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Publication number
EP0130108B1
EP0130108B1 EP84401229A EP84401229A EP0130108B1 EP 0130108 B1 EP0130108 B1 EP 0130108B1 EP 84401229 A EP84401229 A EP 84401229A EP 84401229 A EP84401229 A EP 84401229A EP 0130108 B1 EP0130108 B1 EP 0130108B1
Authority
EP
European Patent Office
Prior art keywords
helmet
visor
structure according
screen
lateral
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.)
Expired
Application number
EP84401229A
Other languages
German (de)
French (fr)
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EP0130108A3 (en
EP0130108A2 (en
Inventor
Claude Morin
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.)
Immolding Establishment
Original Assignee
Immolding Establishment
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Filing date
Publication date
Application filed by Immolding Establishment filed Critical Immolding Establishment
Priority to AT84401229T priority Critical patent/ATE40637T1/en
Publication of EP0130108A2 publication Critical patent/EP0130108A2/en
Publication of EP0130108A3 publication Critical patent/EP0130108A3/en
Application granted granted Critical
Publication of EP0130108B1 publication Critical patent/EP0130108B1/en
Expired legal-status Critical Current

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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
    • A42B3/18—Face protection devices
    • A42B3/22—Visors
    • A42B3/221—Attaching visors to helmet shells, e.g. on motorcycle helmets
    • A42B3/222—Attaching visors to helmet shells, e.g. on motorcycle helmets in an articulated manner, e.g. hinge 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
    • A42B3/08—Chin straps or similar retention devices

Definitions

  • the present invention relates to protective helmets used in particular by motorcyclists, racers, etc. and it relates more particularly to a mobile screen device for helmets of the so-called "integral" type, that is to say comprising a part made of material and extending around the chin of the user.
  • a transparent screen articulated on the helmet so that it can be moved between a position of use in which it is folded down to hide the opening of the helmet, and a raised position in which he releases this opening.
  • This screen is usually made of a relatively flexible transparent plastic material comprising, at appropriate points, articulation means cooperating with complementary means provided on the helmet.
  • articulation means are pins or bosses which project outwardly from the helmet shell and the edges of the screen always form continuous projections in the closed position.
  • the cap has a raised part laterally on each side, these raised parts delimiting a shoulder directed towards the front and having a slot in which is frictionally introduced in the folded position of the screen, a tab integral with the latter, the friction of this tab in the shell of the helmet helping to keep the screen more firmly in the closed position.
  • the axes of articulation of the screen are set back with respect to these projecting lateral parts whose contours are rounded so as to avoid as much as possible the risks of snagging.
  • the invention aims to remedy these drawbacks by providing a protective helmet for example for motorcyclists, of the so-called “integral " type , comprising an integrated screen device, having no external projection and in which the screen, flexible or rigid is positively locked in the closed position while being very easily open without actuating any locking mechanism.
  • the object of the invention is therefore a protective helmet comprising a folding screen having lateral articulation members by means of which it is articulated on the opposite sides of the helmet, characterized in that the upper edge of the closed opening by the screen has a projection forming a stop, the distance between the top of said stop at its midpoint and the axis connecting the points of articulation of the screen being slightly greater than the radius of the circular path followed by the midpoint of the top edge of the screen.
  • the screen is a sheet of an elastically deformable material, molded in shape or not.
  • the helmet has a hole at the locations of the axes of articulation of the screen and an elastic inner plate comprising a boss extending towards the outside of the helmet and suitable for closing said hole. , said plate delimiting with the lateral border of the opening of the helmet a slot adapted to receive a tab formed at each end of the screen and constituting said articulation members thereof.
  • the shell of a conventional helmet 1 comprising an opening at the front, intended to be closed by an articulated screen E.
  • the front opening of the helmet is formed by a peripheral edge 2 which delimits a strip 3 which is slightly recessed and which is limited on the one hand by an elastic lip 4 and, at its junction with the shell, by a bead 5 in projection, the bead 5 extending over the upper part of the periphery of the front opening of the helmet and the lip 4 over the whole of this periphery.
  • the bead 5 has, in section, a height progressively increasing from the surface of the shell and, on its side delimiting the strip 3, a height rapidly decreasing forming a rounded shoulder (Fig. 1) directed downwards.
  • the height of the bead 5 being a little greater than the thickness of the plate of transparent material constituting the screen.
  • the screen E is constituted in a manner known per se by a polycarbonate plate and comprises at each end a rounded tab 6 having as a whole the shape of a hook whose tip 17 has a hole 8 for the passage of an axis articulation as will be explained below.
  • the external curved part of the tab 6 extends beyond the tip 7 of the hook forming a pronounced elbow whose apex 9 is rounded.
  • the lateral end of the screen E has been shown in FIG. 1, developed flat so as to show the shape used, which is identical at the two ends of the screen.
  • Figs. 2 and 3 clearly show the arrangement of the means of articulation of the screen on the helmet.
  • the shell 1 of the helmet is lined in a known manner by a cap made of an elastic or energy absorbing material designated as a whole by the reference 10 and comprises, in the vicinity of its lower lateral edge, a fixing member 11 for a chinstrap 12.
  • the chin strap fixing member is a loop 11 in inverted U which maintains fixed on the inner wall of the cap, in the lateral part of the latter, an element 13 which is advantageously also made of polycarbonate, but not necessarily transparent, and which carries an axis of articulation for the screen E.
  • the internal element 13 comprises a base 14 forming a spacer between the cap of the helmet 1 and the shell.
  • a lug 15 of reduced thickness extends from the base 14 with which it came in one piece and determines a shoulder 16. This lug 15 thus delimiting a passage 17 between it and the internal surface of the cap.
  • the tab 15 has a boss 18 which extends freely in a hole 19 in the shell, which passes through the latter and opens to the outside.
  • the fastening system of the chin strap is generally known, comprising a rigid stirrup 20 around the intermediate part of which extends a loop 21 of the chin strap whose end 22 is folded down below, the branches 24 of the stirrup coming snap on the sides of the loop 11. It is understood that the stirrup 20 maintains the element 13 applied to the inner wall of the shell.
  • E1 in FIG. 1 the screen in the position of use in which it is positively locked by closing the front opening of the helmet, in E2, the screen partially raised in the open position and in E3, the upper edge of the screen crossing the protruding stop 5.
  • the distance a between the axis passing through the articulation points 8 of the screen and the internal surface of the latter in the middle of its upper edge, which constitutes the radius of the circle described by the screen around the the axis joining its two points of articulation 8, which coincide with the holes 9, is less than the distance b which separates this axis from the top of the bead 5 at its midpoint.
  • This difference b-a is therefore approximately equal to the thickness of this bead.
  • the user can manually approach the two lateral lower edges of the screen so as to cause a widening of its upper edge allowing it to easily cross the bead 5.
  • Fig. 4 shows in horizontal section the right side part of the helmet at the articulation of the screen. Clearly seen in this figure, the arrangement of the tab 15 relative to the shell and the slot formed therewith for the passage of the end of the screen E.
  • Fig. 5 is a view similar to that of FIG. 4 in which the screen E4 is of the flexible type molded into shape and has, at the limit of its lateral tab 6, a shoulder 26 which roughly compensates for the thickness of the outer shell of the helmet at the location where the screen, thus completing the surface of the helmet and eliminating another protrusion.
  • the helmet according to the invention is therefore completely devoid of any external projection which could present a danger to the user in the event of impacts or falls, comprises a positive locking screen which is very easily interchangeable and inexpensive to manufacture due to the elimination of the metal articulation members which in the helmets of the prior art had to be incorporated into the molding in the shell of the helmet.
  • the narrow slot delimited by the lug 15 of the elastic element 13 between the shell of the helmet and its inner lining cap receives the rear end of the lug 6 at each end of the screen, with friction, thus contributing to maintain the screen in position, in particular in the raised position of the latter in which the extended part 9 of the tab 6 is still engaged in this slot because of its shape, studied for this purpose.

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Abstract

1. A protective helmet structure comprising a swingable visor having lateral tabs, lateral pivot means pivotally mounting said table on opposed sides of the helmet so that the visor is swingable about said pivot means, characterised in that the upper edge of the helmet opening which is able to be closed by the visor, has a projection (5) forming an abutment, in at least a median part thereof, distance (b) between apex of said abutment (5) and axis joining said pivot means (8) about which axis the visor (E) is swingable being a little greater than radius (a) of a circular path travelled through by the median point of the visor on an inner surface of an upper edge portion of the visor.

Description

La présente invention concerne les casques de protection utilisés notamment par les motocyclistes, les coureurs automobiles, etc. et elle est plus particulièrement relative à un dispositif d'écran mobile pour les casques du type dit «intégral», c'est-à-dire comportant une partie venue de matière et s'étendant autour du menton de l'utilisateur.The present invention relates to protective helmets used in particular by motorcyclists, racers, etc. and it relates more particularly to a mobile screen device for helmets of the so-called "integral" type, that is to say comprising a part made of material and extending around the chin of the user.

Dans les casques connus de ce type, il est prévu un écran transparent articulé sur le casque, de façon à pouvoir être déplacé entre une position d'utilisation dans laquelle il est rabattu pour masquer l'ouverture du casque, et une position relevée dans laquelle il dégage cette ouverture.In known helmets of this type, there is provided a transparent screen articulated on the helmet, so that it can be moved between a position of use in which it is folded down to hide the opening of the helmet, and a raised position in which he releases this opening.

Cet écran est habituellement réalisé en une matière plastique transparente relativement souple comportant en des points appropriés des moyens d'articulation coopérant avec des moyens complémentaires prévus sur le casque.This screen is usually made of a relatively flexible transparent plastic material comprising, at appropriate points, articulation means cooperating with complementary means provided on the helmet.

Lorsque l'écran est rabattu en position d'utilisation, il n'est habituellement pas verrouillé de façon positive dans cette position, car un tel verrouillage nécessiterait l'utilisation d'un organe spécial, par exemple dans les bords inférieurs de l'écran, et adapté pour coopérer avec des moyens complémentaires de la partie inférieure avant du casque.When the screen is folded down in the use position, it is not usually positively locked in this position, since such a lock would require the use of a special member, for example in the lower edges of the screen , and adapted to cooperate with means complementary to the lower front part of the helmet.

En outre, les moyens d'articulation sont des axes ou des bossages qui font saillie extérieurement sur la coque du casque et les bords de l'écran forment toujours des saillies continues en position de fermeture.In addition, the articulation means are pins or bosses which project outwardly from the helmet shell and the edges of the screen always form continuous projections in the closed position.

Il a été constaté depuis un certain temps, que la présence de saillies quelle qu'elles soient sur le casque, est dangereuse pour l'utilisateur. Par ailleurs, on a également cherché à maintenir l'écran le plus solidement possible en position d'utilisation afin d'éviter qu'il ne se déplace, par exemple sous la pression de l'air.It has been noted for some time that the presence of any protrusions on the helmet is dangerous for the user. Furthermore, attempts have also been made to keep the screen as securely as possible in the position of use in order to prevent it from moving, for example under air pressure.

Dans un casque de type connu, la calotte comporte latéralement une partie en relief sur chaque côté, ces parties en relief délimitant un épaulement dirigé vers l'avant et présentant une fente dans laquelle est introduite à frottement en position rabattue de l'écran, une patte solidaire de ce dernier, le frottement de cette patte dans la coquille du casque contribuant à maintenir l'écran plus fermement en position de fermeture. En outre, les axes d'articulation de l'écran se trouvent en retrait par rapport à ces parties latérales en saillie dont les contours sont arrondis de façon à éviter au maximum les risques d'accrochage.In a helmet of a known type, the cap has a raised part laterally on each side, these raised parts delimiting a shoulder directed towards the front and having a slot in which is frictionally introduced in the folded position of the screen, a tab integral with the latter, the friction of this tab in the shell of the helmet helping to keep the screen more firmly in the closed position. In addition, the axes of articulation of the screen are set back with respect to these projecting lateral parts whose contours are rounded so as to avoid as much as possible the risks of snagging.

La réglementation actuelle en matière de sécurité a pour but de supprimer toutes les saillies extérieures sur les casques. En conséquence, les casques utilisés actuellement ne sont pas satisfaisants de ce point de vue.The current safety regulations aim to remove all external protrusions on helmets. Consequently, the helmets currently used are not satisfactory from this point of view.

L'invention a pour but de remédier à ces inconvénients en réalisant un casque de protection par exemple pour motocyclistes, du type dit «intégrai", comportant un dispositif d'écran intégré, ne présentant aucune saillie extérieure et dans lequel l'écran, souple ou rigide soit verrouillé positivement en position de fermeture tout en pouvant être très facilement ouvert sans actionner aucun mécanisme de verrouillage.The invention aims to remedy these drawbacks by providing a protective helmet for example for motorcyclists, of the so-called "integral " type , comprising an integrated screen device, having no external projection and in which the screen, flexible or rigid is positively locked in the closed position while being very easily open without actuating any locking mechanism.

L'invention a pour objet à cet effet, un casque de protection comportant un écran rabattable ayant des organes d'articulation latéraux au moyen desquels il est articulé sur les côtés opposés du casque, caractérisé en ce que le bord supérieur de l'ouverture fermée par l'écran présente une saillie formant butée, la distance entre le sommet de ladite butée au point médian de celle-ci et l'axe reliant les points d'articulation de l'écran étant un peu supérieure au rayon du trajet circulaire suivi par le point médian du bord supérieur de l'écran.The object of the invention is therefore a protective helmet comprising a folding screen having lateral articulation members by means of which it is articulated on the opposite sides of the helmet, characterized in that the upper edge of the closed opening by the screen has a projection forming a stop, the distance between the top of said stop at its midpoint and the axis connecting the points of articulation of the screen being slightly greater than the radius of the circular path followed by the midpoint of the top edge of the screen.

Suivant une autre caractéristique de l'invention, l'écran est une feuille d'une matière élastiquement déformable, moulée en forme ou non.According to another characteristic of the invention, the screen is a sheet of an elastically deformable material, molded in shape or not.

Suivant une autre caractéristique de l'invention, le casque comporte un trou au niveau des emplacements des axes d'articulation de l'écran et une plaque intérieure élastique comportant un bossage s'étendant vers l'extérieur du casque et adapté pour obturer ledit trou, ladite plaque délimitant avec la bordure latérale de l'ouverture du casque une fente adaptée pour recevoir une patte formée à chaque extrémité de l'écran et constituant lesdits organes d'articulation de celui-ci.According to another characteristic of the invention, the helmet has a hole at the locations of the axes of articulation of the screen and an elastic inner plate comprising a boss extending towards the outside of the helmet and suitable for closing said hole. , said plate delimiting with the lateral border of the opening of the helmet a slot adapted to receive a tab formed at each end of the screen and constituting said articulation members thereof.

On comprend que grâce à cet agencement, lorsque l'écran est rabattu en position de fermeture de l'ouverture du casque, il se déforme élastiquement pour franchir la saillie formant butée au-dessous de laquelle le bord supérieur de l'écran vient se bloquer en reprenant sa forme élastiquement, ladite déformation lui permettant de franchir la butée étant reproduite, pour relever la visière, en exerçant une pression sur le bord inférieur de l'écran au voisinage de chaque extrémité de celui-ci, vers l'intérieur.We understand that thanks to this arrangement, when the screen is folded down in the closed position of the opening of the helmet, it deforms elastically to cross the projection forming a stopper below which the upper edge of the screen is blocked by resuming its shape elastically, said deformation allowing it to cross the stop being reproduced, to raise the visor, by exerting a pressure on the lower edge of the screen in the vicinity of each end thereof, inwards.

On comprend qu'à la suite de cette pression, l'écran se déforme de nouveau, la partie médiane de son bord supérieur s'écartant de la butée, ce qui permet de la lui faire franchir pour le relever.We understand that following this pressure, the screen deforms again, the middle part of its upper edge deviating from the stop, which allows it to cross to raise it.

L'invention sera mieux comprise à l'aide de la description qui va suivre, d'un exemple de réalisation donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés, sur lesquels:

  • - la Fig. 1 est une vue partielle en élévation latérale d'un casque de protection suivant l'invention montrant l'écran dans différentes positions;
  • - la Fig. 2 en est une autre vue en perspective montrant de l'intérieur la partie latérale gauche du casque suivant l'invention;
  • - la Fig. 3 est une vue en coupe suivant la ligne 3-3 de la Fig. 2;
  • - la Fig. 4 est une vue en coupe horizontale de dessus de la partie latérale droite du casque, au niveau de l'articulation de l'écran;
  • - la Fig. 5 est une vue analogue à celle de la Fig.4 dans laquelle l'écran est un écran semi- rigide moulé en forme.
The invention will be better understood with the aid of the description which follows, of an exemplary embodiment given solely by way of example and made with reference to the accompanying drawings, in which:
  • - Fig. 1 is a partial view in side elevation of a protective helmet according to the invention showing the screen in different positions;
  • - Fig. 2 is another perspective view showing from the inside the left side part of the helmet according to the invention;
  • - Fig. 3 is a sectional view along line 3-3 of FIG. 2;
  • - Fig. 4 is a view in horizontal section from above of the right lateral part of the helmet, at the articulation of the screen;
  • - Fig. 5 is a view similar to that of FIG. 4 in which the screen is a semi-rigid screen molded into shape.

On a représenté partiellement à la Fig. 1, la coquille d'un casque classique 1 comportant une ouverture à l'avant, destinée à être fermée par un écran articulé E.Partially shown in FIG. 1, the shell of a conventional helmet 1 comprising an opening at the front, intended to be closed by an articulated screen E.

L'ouverture avant du casque est formée par un bord périphérique 2 qui délimite une bande 3 qui est légèrement en retrait et qui est limitée d'une part par une lèvre élastique 4 et, à sa jonction avec la coquille, par un bourrelet 5 en saillie, le bourrelet 5 s'étendant sur la partie supérieure de la périphérie de l'ouverture avant du casque et la lèvre 4 sur la totalité de cette périphérie.The front opening of the helmet is formed by a peripheral edge 2 which delimits a strip 3 which is slightly recessed and which is limited on the one hand by an elastic lip 4 and, at its junction with the shell, by a bead 5 in projection, the bead 5 extending over the upper part of the periphery of the front opening of the helmet and the lip 4 over the whole of this periphery.

Le bourrelet 5 présente en section, une hauteur progressivement croissante depuis la surface de la coquille et, sur son côté délimitant la bande 3, une hauteur diminuant rapidement formant un épaulement arrondi (Fig. 1) dirigé vers le bas. La hauteur du bourrelet 5 étant un peu supérieure à l'épaisseur de la plaque de matière transparente constituant l'écran.The bead 5 has, in section, a height progressively increasing from the surface of the shell and, on its side delimiting the strip 3, a height rapidly decreasing forming a rounded shoulder (Fig. 1) directed downwards. The height of the bead 5 being a little greater than the thickness of the plate of transparent material constituting the screen.

L'écran E est constitué de façon connue en soi par une plaque en polycarbonate et comporte à chaque extrémité une patte arrondie 6 ayant dans son ensemble la forme d'un crochet dont la pointe 17 comporte un trou 8 pour le passage d'un axe d'articulation comme on l'expliquera dans la suite.The screen E is constituted in a manner known per se by a polycarbonate plate and comprises at each end a rounded tab 6 having as a whole the shape of a hook whose tip 17 has a hole 8 for the passage of an axis articulation as will be explained below.

La partie courbe externe de la patte 6 s'étend au-delà de la pointe 7 du crochet formant un coude prononcé dont le sommet 9 est arrondi.The external curved part of the tab 6 extends beyond the tip 7 of the hook forming a pronounced elbow whose apex 9 is rounded.

L'extrémité latérale de l'écran E a été représentée à la Fig. 1, développée à plat de manière à montrer la forme utilisée, qui est identique aux deux extrémités de l'écran.The lateral end of the screen E has been shown in FIG. 1, developed flat so as to show the shape used, which is identical at the two ends of the screen.

Les Fig. 2 et 3 montrent clairement l'agencement des moyens d'articulation de l'écran sur le casque.Figs. 2 and 3 clearly show the arrangement of the means of articulation of the screen on the helmet.

La coquille 1 du casque est doublée de façon connue par une calotte en une matière élastique ou d'absorption d'énergie désignée dans son ensemble par la référence 10 et comporte, au voisinage de son bord latéral inférieur, un organe 11 de fixation pour une jugulaire 12.The shell 1 of the helmet is lined in a known manner by a cap made of an elastic or energy absorbing material designated as a whole by the reference 10 and comprises, in the vicinity of its lower lateral edge, a fixing member 11 for a chinstrap 12.

L'organe de fixation de jugulaire est un passant 11 en U inversé qui maintient fixé sur la paroi interne de la calotte, dans la partie latérale de celle-ci, un élément 13 qui est avantageusement réalisé également en polycarbonate, mais non nécessairement transparent, et qui porte un axe d'articulation pour l'écran E.The chin strap fixing member is a loop 11 in inverted U which maintains fixed on the inner wall of the cap, in the lateral part of the latter, an element 13 which is advantageously also made of polycarbonate, but not necessarily transparent, and which carries an axis of articulation for the screen E.

L'élément interne 13 comporte une base 14 formant entretoise entre la calotte du casque 1 et la coquille. Une patte 15 d'épaisseur réduite s'étend à partir de la base 14 avec laquelle elle est venue de matière et détermine un épaulement 16. Cette patte 15 délimitant ainsi un passage 17 entre elle et la surface interne de la calotte. A son extrémité libre, la patte 15 comporte un bossage 18 qui s'étend librement dans un trou 19 de la coquille, qui traverse celle-ci et débouche à l'extérieur.The internal element 13 comprises a base 14 forming a spacer between the cap of the helmet 1 and the shell. A lug 15 of reduced thickness extends from the base 14 with which it came in one piece and determines a shoulder 16. This lug 15 thus delimiting a passage 17 between it and the internal surface of the cap. At its free end, the tab 15 has a boss 18 which extends freely in a hole 19 in the shell, which passes through the latter and opens to the outside.

Le système de fixation de la jugulaire est dans son ensemble connu, comportant un étrier rigide 20 autour de la partie intermédiaire duquel s'étend une boucle 21 de la jugulaire dont l'extrémité 22 est rabattue par-dessous, les branches 24 de l'étrier venant s'enclencher élastiquement sur les côtés du passant 11. On comprend que l'étrier 20 maintient l'élément 13 appliqué sur la paroi interne de la coquille.The fastening system of the chin strap is generally known, comprising a rigid stirrup 20 around the intermediate part of which extends a loop 21 of the chin strap whose end 22 is folded down below, the branches 24 of the stirrup coming snap on the sides of the loop 11. It is understood that the stirrup 20 maintains the element 13 applied to the inner wall of the shell.

Dans l'intervalle 17 ménagé par la patte 15 s'étend l'extrémité 9 de la patte latérale 6 en forme de crochet de l'écran E, le bossage 18 s'étendant à travers le trou 8 d'articulation de l'écran E. On comprend que pour mettre l'écran en place, il suffit de repousser élastiquement le bossage 18 de l'extérieur de la coquille, par exemple au moyen d'un crayon ou de tout autre organe et d'amener le trou 8 de la patte latérale de l'écran en regard du trou 19, le bossage 18 reprenant alors élastiquement sa place à travers le trou de l'écran et celui de la coquille. Dans ce but, un évidement 25 est prévu dans l'épaisseur de la calotte d'amortissement 10 garnissant l'intérieur du casque.In the interval 17 formed by the tab 15 extends the end 9 of the side tab 6 in the form of a hook of the screen E, the boss 18 extending through the hole 8 of articulation of the screen E. It is understood that to put the screen in place, it suffices to push the boss 18 elastically from the outside of the shell, for example by means of a pencil or any other member and to bring the hole 8 of the side tab of the screen opposite the hole 19, the boss 18 then resiliently taking its place through the hole in the screen and that of the shell. For this purpose, a recess 25 is provided in the thickness of the damping cap 10 lining the interior of the helmet.

On comprend que grâce à cet agencement, l'articulation du casque se trouve entièrement effacée à l'intérieur de ce dernier qui ainsi ne présente aucune saillie répondant ainsi aux impératifs de la sécurité suivant lesquels aucune saillie ne doit apparaître sur l'extérieur d'un casque de protection de ce type.It is understood that thanks to this arrangement, the articulation of the helmet is entirely erased inside the latter which thus has no protrusion thus meeting the requirements of security according to which no protrusion must appear on the outside of a protective helmet of this type.

On a représenté en E1 à la Fig. 1, l'écran en position d'utilisation dans laquelle il est verrouillé positivement en fermant l'ouverture avant du casque, en E2, l'écran partiellement levé en position d'ouverture et en E3, le bord supérieur de l'écran franchissant la butée 5 en saillie.There is shown in E1 in FIG. 1, the screen in the position of use in which it is positively locked by closing the front opening of the helmet, in E2, the screen partially raised in the open position and in E3, the upper edge of the screen crossing the protruding stop 5.

On remarquera à la Fig. 1 que la distance a entre l'axe passant par les points d'articulation 8 de l'écran et la surface interne de celui-ci au milieu de son bord supérieur, qui constitue le rayon du cercle décrit par l'écran autour de l'axe joignant ses deux points d'articulation 8, qui coïncident avec les trous 9, est inférieure à la distance b qui sépare cet axe du sommet du bourrelet 5 en son point médian.It will be noted in FIG. 1 that the distance a between the axis passing through the articulation points 8 of the screen and the internal surface of the latter in the middle of its upper edge, which constitutes the radius of the circle described by the screen around the the axis joining its two points of articulation 8, which coincide with the holes 9, is less than the distance b which separates this axis from the top of the bead 5 at its midpoint.

Cette différence b-a est donc à peu près égale à l'épaisseur de ce bourrelet.This difference b-a is therefore approximately equal to the thickness of this bead.

On comprend que grâce à cet agencement, lorsque l'écran E se trouve en position d'ouverture et qu'on le rabat vers sa position de fermeture, l'écran passe par une position telle que représentée en E3 dans laquelle sa surface interne entre en contact avec la partie d'épaisseur croissante du bourrelet 5 au niveau du bord supérieur de l'écran déterminant ainsi un frottement freinant la continuation du mouvement de l'écran vers le bas.It is understood that thanks to this arrangement, when the screen E is in the open position and that it is folded towards its closed position, the screen passes through a position as shown in E3 in which its internal surface enters in contact with the portion of increasing thickness of the bead 5 at the upper edge of the screen thus determining a friction braking the continuation of the movement of the screen downwards.

En forçant alors l'écran à continuer son mouvement vers le bas, celui-ci se déforme en raison de sa nature flexible, les bords inférieurs de l'écran se rapprochant l'un de l'autre provoquant ainsi une déformation du bord supérieur vers l'extérieur, déformation qui lui permet de franchir le bourrelet 5. Ayant franchi le bourrelet 5, l'écran reprend ensuite élastiquement sa forme et son bord se trouve en butée contre le bord inférieur du bourrelet 5 comme représenté en E1.By forcing the screen to continue its downward movement, it deforms due to its flexible nature, the lower edges of the screen approaching each other thus causing a deformation of the upper edge towards the outside, deformation which enables it to cross the bead 5. Having crossed the bead 5, the screen then resumes its shape elastically and its edge is in abutment against the lower edge of the bead 5 as shown in E1.

On comprend que l'écran se trouve ainsi verrouillé positivement contre le bourrelet 5 formant butée et que même si de l'air s'engouffre à l'intérieur du casque tendant à déformer son bord inférieur vers l'extérieur, cette déformation a pour effet d'appliquer plus étroitement le bord supérieur de l'écran contre la lèvre 4 et en butée contre le bourrelet 5.We understand that the screen is thus positively locked against the bead 5 forming a stop and that even if air rushes inside the helmet tending to deform its lower edge outwards, this deformation has the effect apply the upper edge more closely laughing of the screen against the lip 4 and in abutment against the bead 5.

Dans le sens inverse, pour relever l'écran 5, l'utilisateur peut approcher manuellement les deux bords inférieurs latéraux de l'écran pour provoquer ainsi un élargissement de son bord supérieur lui permettant de franchir facilement le bourrelet 5.In the opposite direction, to raise the screen 5, the user can manually approach the two lateral lower edges of the screen so as to cause a widening of its upper edge allowing it to easily cross the bead 5.

La Fig. 4 montre en coupe horizontale la partie latérale de droite du casque au niveau de l'articulation de l'écran. On voit clairement sur cette figure, l'agencement de la patte 15 par rapport à la coquille et la fente ménagée avec celle-ci pour le passage de l'extrémité de l'écran E.Fig. 4 shows in horizontal section the right side part of the helmet at the articulation of the screen. Clearly seen in this figure, the arrangement of the tab 15 relative to the shell and the slot formed therewith for the passage of the end of the screen E.

La Fig. 5 est une vue analogue à celle de la Fig. 4 dans laquelle l'écran E4 est du type flexible moulé en forme et présente à la limite de sa patte latérale 6, un épaulement 26 qui compense à peu près l'épaisseur de la coquille extérieure du casque à l'emplacement où pénètre l'écran, complétant ainsi la surface du casque et supprimant une autre saillie.Fig. 5 is a view similar to that of FIG. 4 in which the screen E4 is of the flexible type molded into shape and has, at the limit of its lateral tab 6, a shoulder 26 which roughly compensates for the thickness of the outer shell of the helmet at the location where the screen, thus completing the surface of the helmet and eliminating another protrusion.

Le casque suivant l'invention est donc totalement dépourvu de toute saillie extérieure pouvant présenter un danger pour l'utilisateur en cas de chocs ou de chutes, comporte un écran à verrouillage positif qui est très facilement interchangeable et de fabrication peu coûteuse du fait de la suppression des organes d'articulation métalliques qui dans les casques de la technique antérieure devaient être incorporés au moulage dans la coquille du casque.The helmet according to the invention is therefore completely devoid of any external projection which could present a danger to the user in the event of impacts or falls, comprises a positive locking screen which is very easily interchangeable and inexpensive to manufacture due to the elimination of the metal articulation members which in the helmets of the prior art had to be incorporated into the molding in the shell of the helmet.

En outre, le bossage 18 obturant à peu près complètement le trou 19 s'oppose également à toute pénétration d'humidité.In addition, the boss 18 closing almost completely the hole 19 also opposes any penetration of moisture.

Enfin, la fente étroite délimitée par la patte 15 de l'élément élastique 13 entre la coquille du casque et sa calotte de garniture intérieure, reçoit l'extrémité arrière de la patte 6 à chaque extrémité de l'écran, à frottement, contribuant ainsi à maintenir l'écran en position, en particulier dans la position relevée de ce dernier dans laquelle la partie prolongée 9 de la patte 6 se trouve toujours engagée dans cette fente en raison de sa forme, étudiée dans ce but.Finally, the narrow slot delimited by the lug 15 of the elastic element 13 between the shell of the helmet and its inner lining cap, receives the rear end of the lug 6 at each end of the screen, with friction, thus contributing to maintain the screen in position, in particular in the raised position of the latter in which the extended part 9 of the tab 6 is still engaged in this slot because of its shape, studied for this purpose.

Claims (10)

1. A protective helmet structure comprising a swingable visor having lateral tabs, lateral pivot means pivotally mounting said table on opposed sides of the helmet so that the visor is swingable about said pivot means, characterised in that the upper edge of the helmet opening which is able to be closed by the visor, has a projection (5) forming an abutment, in at least a median part thereof, distance (b) between apex of said abutment (5) and axis joining said pivot means (8) about which axis the visor (E) is swingable being a little greater than radius (a) of a circular path travelled through by the median point of the visor on an inner surface of an upper edge portion of the visor.
2. A helmet structure according to claim 1, wherein the lateral tabs (6) of the helmet (E) are pivotally mounted on resiliently retractable bosses (18) which are disposed within the thickness of a lateral wall of the helmet (1) and do not project from the exterior of the helmet.
3. A helmet structure according to claim 2, wherein said visor (E) is made from a planar sheet of a resiliently deformable plastics material, each of said tabs (6) having means defining an aperture (8) receiving a corresponding one of said bosses (18).
4. A helmet structure according to claim 2, wherein said visor (E) is made from a resiliently deformable moulded plastics material and has, in the visinity of each of said tabs, a step (26) which bears against a lateral portion of the opening of the helmet in the downwardly swinging position of the visor, each of said tabs (6) having means defining an aperture (8) receiving a corresponding one of said bosses.
5. A helmet structure according to claim 4, wherein the height of said step (26) is such that outer surface of the visor (E) is substantially flush with an outer surface of outer shell of the helmet.
6. A helmet structure according to any one of claims 1 to 5, characterised in that said projection (5) constituting an abutment is formed by a bulge of the outer shell of the helmet on the upper edge of the opening thereof.
7. A helmet structure according to claim 6, wherein said bulge forms a ledge with a sealing lip (4) on the lower part of the ledge.
8. A helmet structure according to claim 2, wherein the resiliently retractable bosses (18) are each formed on a flexible tab (15) of an element (13) which is fixed internally on the lateral wall of the helmet and defines with lateral edge of the opening of the helmet a slot in which slot is engaged a respective one of said tabs (6) of the visor, each boss (18) extending from the interior toward the exterior of the helmet through an opening (19) in the shell.
9. A helmet structure according to claim 8, wherein said bosses (18) constitute visor pivot pins and are accessible from the exterior of the helmet through the respective opening (19) but do not project outside the helmet.
10. A helmet structure according to claim 8, characterised in that said element (13) is disposed between a cap (10) internally lining the helmet and the shell thereof, said cap including a cavity (25) whose depth is equal to the height of the respective boss (19).
EP84401229A 1983-06-24 1984-06-14 Protective helmet Expired EP0130108B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84401229T ATE40637T1 (en) 1983-06-24 1984-06-14 HARD HELMET.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8310493 1983-06-24
FR8310493A FR2547704B1 (en) 1983-06-24 1983-06-24 ADVANCED PROTECTIVE HELMET

Publications (3)

Publication Number Publication Date
EP0130108A2 EP0130108A2 (en) 1985-01-02
EP0130108A3 EP0130108A3 (en) 1985-11-27
EP0130108B1 true EP0130108B1 (en) 1989-02-08

Family

ID=9290150

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84401229A Expired EP0130108B1 (en) 1983-06-24 1984-06-14 Protective helmet

Country Status (6)

Country Link
EP (1) EP0130108B1 (en)
JP (1) JPS6028504A (en)
AT (1) ATE40637T1 (en)
AU (1) AU2971784A (en)
DE (1) DE3476630D1 (en)
FR (1) FR2547704B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT8553000V0 (en) * 1985-02-18 1985-02-18 Boretti Gian Romano HEAD PROTECTION DEVICE FOR SPORT ACTIVITIES, ESPECIALLY FOR COMPETITIVE SKIING
JPH0444326U (en) * 1990-08-21 1992-04-15
US6776792B1 (en) 1997-04-24 2004-08-17 Advanced Cardiovascular Systems Inc. Coated endovascular stent
US6602287B1 (en) 1999-12-08 2003-08-05 Advanced Cardiovascular Systems, Inc. Stent with anti-thrombogenic coating
DE102010027012A1 (en) * 2010-07-13 2012-01-19 Anton Pfanner Hard hat, especially for forestry workers
DE102010027015A1 (en) * 2010-07-13 2012-01-19 Anton Pfanner Face shield for attachment to a protective helmet, in particular for forestry workers

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB787079A (en) * 1955-02-21 1957-12-04 John Somerville Improvements in or relating to visors
GB1182924A (en) * 1966-11-04 1970-03-04 Melton Products Improvements in or relating to Clips for Visors.
US4023210A (en) * 1975-05-21 1977-05-17 Hanson Gary L Universal flip-up attachment for helmets
DE2541468A1 (en) * 1975-09-17 1977-03-24 Bayerische Motoren Werke Ag LENS FOR PROTECTIVE HELMETS
FR2352507A2 (en) * 1976-05-25 1977-12-23 Sl France Plastic panels for helmet visor arm covers - for a smooth, secure visor fitting
CH610740A5 (en) * 1977-01-17 1979-05-15 Kiwi Sa Integral helmet with movable visor for general sports use
US4117553A (en) * 1977-04-12 1978-10-03 Bay William P Helmet shield and visor apparatus
DE2918587A1 (en) * 1979-05-09 1980-11-13 Kalman Gyoery Integral crash helmet with well-fitting visor - has magnetic system holding punched-out visor plate tightly in place with no draught or noise
FR2457080A1 (en) * 1979-05-22 1980-12-19 Renault Strap for fixing visor to crash helmet - is elastically deformable triangular bracket with stud fitting into groove in side-piece
US4305160A (en) * 1980-02-19 1981-12-15 Bell Helmets, Inc. Detent controlled helmet shields
IT1201936B (en) * 1980-07-11 1989-02-02 Pier Luigi Nava DEVICE FOR THE CONTROLLED LIFTING OF HELMETS AND SIMILAR VISORS
JPS5881605A (en) * 1981-11-02 1983-05-17 ヤマハ発動機株式会社 Helmet with shield

Also Published As

Publication number Publication date
JPS6028504A (en) 1985-02-13
EP0130108A3 (en) 1985-11-27
AU2971784A (en) 1985-01-03
FR2547704B1 (en) 1985-11-29
FR2547704A1 (en) 1984-12-28
ATE40637T1 (en) 1989-02-15
DE3476630D1 (en) 1989-03-16
EP0130108A2 (en) 1985-01-02

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