EP2319338A1 - Helmet with pivoting visor - Google Patents

Helmet with pivoting visor Download PDF

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Publication number
EP2319338A1
EP2319338A1 EP10190440A EP10190440A EP2319338A1 EP 2319338 A1 EP2319338 A1 EP 2319338A1 EP 10190440 A EP10190440 A EP 10190440A EP 10190440 A EP10190440 A EP 10190440A EP 2319338 A1 EP2319338 A1 EP 2319338A1
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EP
European Patent Office
Prior art keywords
screen
connecting member
cap
rotation
helmet
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.)
Granted
Application number
EP10190440A
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German (de)
French (fr)
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EP2319338B1 (en
Inventor
Philippe Berthier
Pierre Bertrand
Jean-François Maillard
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Shark
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Shark
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Publication date
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Publication of EP2319338A1 publication Critical patent/EP2319338A1/en
Application granted granted Critical
Publication of EP2319338B1 publication Critical patent/EP2319338B1/en
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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

Definitions

  • the present invention relates to the general field of helmets, in particular helmets for motorcyclists.
  • Such a helmet conventionally comprises a cap having an opening at the front, a translucent screen for protecting the face, and mounting means for the screen to pivot relative to the cap, along an axis of rotation, between a closed position in which the screen completely covers the opening and a maximum open position in which the screen is at least partially disengaged from this opening.
  • This type of device does not provide a very precise pivoting guidance because of the small diameter of the pivot screw. Moreover, it requires the use of a tool to separate the screen of the cap.
  • a helmet which has on each of its sides, a device which comprises, a trunnion fixed on the cap and a button pusher mounted in translation on the axis of the trunnion.
  • the device is further provided with balls movable radially in the side wall of the journal between a retracted position and a projecting position according to the relative position of the button relative to this journal.
  • Each device cooperates with a corresponding lateral end of the screen by a circular opening whose circumference forms a hub for the trunnion and has a toric groove matching the shape of the balls.
  • the balls are engaged without the groove so as to allow the pivoting of the screen but to prevent its extraction. Conversely, when the device is in the retracted position, the balls are retracted into the trunnion and no longer oppose the removal of the screen.
  • This type of device which greatly facilitates the assembly / disassembly of the screen and the cap, however, has certain risks of accidental disconnection of the screen during a fall at high speed of the carrier, which can cause projections gravel and / or sand in the eyes.
  • the present invention therefore aims to provide a helmet facilitating the assembly / disassembly of the screen on the cap, while presenting, in the configuration of use, improved security.
  • a helmet comprising a cap provided with an opening, a screen, means reversibly mounting said screen on said cap having on each side of said helmet a hinge device between said cap and a corresponding lateral end of said screen so that it is pivotable relative to said cap, along an axis of rotation XX, between a closed position in which said screen completely covers said opening and a maximum open position in which said screen is at least partially disengaged from said opening, characterized in that said reversible mounting means further comprise on at least one side of said helmet, a retaining device comprising a plate fixed on the outer face of said cap and provided with an oblong opening in an arc of a circle centered on said axis of rotation XX, and a connecting member rotatably mounted on said screen along an axis YY parallel to said axis of rotation XX, said holding device being able to occupy an engagement configuration in which said connecting member is integral with said plate and passes right through said oblong opening so that said connecting
  • the helmet according to the invention thus has on each of its sides, a hinge device allowing the corresponding lateral end of the screen to pivot relative to the cap, and a retaining device which makes the screen of the cap.
  • This feature allows the retaining device to overcome the constraints related to the fact that in previous systems, the retaining device was also to provide the pivoting function of the screen on the cap (and thus have a fairly large diameter to ensure sufficient accuracy for this pivot).
  • the retaining device of the helmet according to the invention allows, when it occupies its engagement configuration, to firmly lock virtually all possible relative movements between the screen and the cap.
  • this member is integral with the plate fixed on the cap, prevents the ends of the screen to move in translation to the outside of the helmet along the axis of rotation; while the fact that the member passes through the oblong opening, prevents any radial movement to this axis of rotation.
  • the connecting member of the retaining device being rotatably mounted on the screen, its handling is facilitated for the user even when the latter wears the helmet on his head.
  • the helmet 1 is an integral helmet which comprises a rigid outer cap 2 provided with an opening 2A ( figure 4 ) at the front, an internal cap (not visible) and a screen 3.
  • the cap refers to a heavier shell and less rigid than the outer cap, covering a substantial portion or the entire inner face of the outer cap.
  • the cap Generally molded in an expanded synthetic foam such as polystyrene, the cap has the function of absorbing by deforming a large part of the energy released during an impact, especially in case of a fall.
  • the screen 3 here has a variable thickness along its length. This thickness which is about 4 mm in its central zone of vision, thus decreases progressively towards its two lateral ends where it is less than 3 mm. This variation of the thickness of the screen 3 optimizes the optical distortion on this screen 3 and thus provides a better visual comfort for the wearer.
  • the helmet 1 also comprises, on each of its sides, reversible mounting means of the screen 3 on the cap 2.
  • These reversible mounting means comprise a hinge device 5 between the cap 2 and a corresponding lateral end 6 of the screen 3, and a retaining device 7 of the screen 3 on the cap 2.
  • the helmet 1 further has, on one of its sides, a locking device 8 of the screen 3 in the closed position.
  • the hinge device 5 comprises a first element 10 in the form of a boater's hat whose top 12 of the cylindrical wall 14 is fitted into a recess 16 of a disk-shaped wall 18A.
  • the top 12 and the bottom of the recess 16 each have a central bore 19, 20 provided for the passage of a mounting screw 22 which is screwed onto the outer cap 2.
  • the hinge device 5 is in the form of a coil whose central hub, consisting of the cylindrical wall 14, is sandwiched by two inner and outer circular flanges respectively formed by the wall-shaped disc 18A and the annular edge 24 of the first element 10 in the form of a boater.
  • Each articulation device 5 is designed to cooperate with an oblong notch 26 located at the corresponding lateral end of the screen 3.
  • the wafer 28 of each oblong notch thus has a hemicircular bottom portion 28A whose diameter corresponds to that of the central hub 14, and two parallel rectilinear side portions 28B each having a protuberance 29.
  • the retaining device 7 is situated at the front of the articulation device and close to the latter. It comprises a connecting member 30 mounted mobile in translation and rotation on the screen 3 and a plate 18 which here incorporates the circular wall 18A of the hinge device.
  • the connecting member 30 comprises a locking element 32 having a T-shaped profile, a helical compression spring 34, an actuating element 36 and a screw 38.
  • the locking element 32 is formed of a threaded cylindrical rod 32A and an oval gib 32B extending transversely to this rod 32A at one of its ends.
  • the actuating element 36 which generally has a comma-shaped contour 40, comprises a hollow central knob 36A and provided with a hole 36B at its center for the passage of the screw 38.
  • the contour 40 in the form of a comma has a first main portion 40A in an arc that extends between two upper end edges 41 and lower 42, a second portion 40B also in an arc having the same radius of curvature as the annular flange 24 and extending between the upper edge 41 and a ratchet edge 43, and a third sinusoidal portion 40C extending between the ratchet edge 43 and the lower edge 42 ( figure 4 ).
  • the actuating element 36 also comprises, along the second and third portions 40B, 40C of its contour 40, an elongate light 36C ( figure 4 ) which, as will be seen in more detail later, provides a certain elasticity to this actuating element 36 at the ratchet edge 43.
  • the screen 3 comprises near and at the front of each of the two oblong end slots 26, a circular through opening 46 extending along an axis YY parallel to the axis of the hub 14 forming an axis of rotation XX for the screen 3, and whose inner portion is covered here by an annular ring 48 anti-friction.
  • the screen 3 On its inner face and at the periphery of each circular opening 46, the screen 3 further comprises an oval recess 50 whose dimensions correspond to those of a gib 32B, so as to form a hollow housing for the latter.
  • the connecting element 30 is mounted on the screen 3 in the following manner.
  • the locking element 32 is firstly introduced from the inner side of the screen 3 and its free end 32C (the one opposite the bolt 32B) into the circular opening 46.
  • the coil spring 34 is then positioned around of the portion of the rod 32A having passed through the screen 3, then the free end 32C of this rod is engaged in the actuating element at its hollow central button 36A.
  • the screw 38 is inserted into the circular orifice 36B of this button 36A and screwed to the thread of the rod 32A.
  • This plate 18 comprises at the front of the disk-shaped wall 18A and in its extension, a wall 18B generally having the shape of an equilateral triangle, one of the vertices 52 forms the front end of this plate.
  • the wall 18B comprises a bore 54 for the passage of a mounting screw 56 screwed onto the outer cap 2.
  • the wall 18B has a countersink 55 provided to receive the head of the screw 56 ( figure 4 ) so that it does not protrude from the outer face of the plate 18.
  • This wall 18B also comprises at the rear of the bore 54, an oblong opening 58 in an arc of a circle, centered on the axis of rotation XX and forming an angular portion of between 15 and 25 °.
  • This opening 58 has a width slightly greater than that of the gib 32B but very significantly less than its length.
  • the wall 18B On the inner periphery of this oblong opening 58, the wall 18B has a countersink 59 whose width is slightly greater than the length of the gibber 32B.
  • Each plate 18 is fixed on each side of the helmet, using the two mounting screws 22 and 56 respectively passing through the holes 19 and 54, in a corresponding recess (not visible in the figures) of the outer cap 2.
  • the diameter of these bores 19, 54 is greater than that of the mounting screws 22, 56 (here about 2 mm), so that the position of the plates 18 on the cap 2 can be adjusted to ensure that the screen in the closed position, compresses the elastic lip 60 located on the outer periphery of the opening 2A ( figure 4 ).
  • This possibility of fine adjustment of the position of the plates 18 makes it possible to obtain a excellent waterproofness of the helmet and catch the slight differences in ribs that may exist between caps.
  • These mounting screws 22, 56 have a breaking primer designed to break under a predetermined stress, which can occur especially during a fall of the carrier with the screen 3 partially open, if the lower edge of this screen 3 violently hits an obstacle.
  • the plates 18 once mounted, are flush outer face of the cap 2, which avoids any vacuum between the screen 3 and the outer cap 2 and thus provides a good seal of the helmet when the screen is in the closed position.
  • these plates 18 have a reduced thickness (between 2 and 5 mm) in comparison with those used generally in this type of device, which allows to limit the depth of the recesses and thus to maintain a large thickness of calotin in order to to improve the safety of the helmet.
  • the locking device 8 is located at the front of the retaining device 7. It comprises a generally triangular wall 62, here molded of material with the screen 3, which extends in a slight overhang of this screen 3 and protrudes into a point from its lower edge.
  • the wall 62 has an almost rectilinear profile at the front and concave rear to facilitate its handling by the user as will be seen below in more detail.
  • the lower pointed end of this wall 62 has on the inner side, a ratchet tooth 64 formed of a beveled ramp 64A surmounted by a recess 64B.
  • the device 8 also comprises a lug 66 which protrudes from a recess 68 situated at the periphery of the opening 2A of the cap 2 ( figure 4 ). This lug is arranged so that it can cooperate with the tooth 64 during the complete closure of the screen 3.
  • each panel 32B of a connecting member 30 is housed in the corresponding recess 50 so that it does not protrude from this screen and does not interfere not the movement in translation of the screen 3 vis-à-vis the cap 2 towards the articulation device 5.
  • the user must simply turn the actuating element 36 until the bolt 32B is aligned with the recess 50, the return force exerted by the spring 34 then causing this bacon 32B in this recess 50.
  • Each of the connecting members 30 is then in its retracted position in which it is locked in rotation by the cooperation between the lardon 32B and the recess 50.
  • the user can then simultaneously introduce each lateral end of the screen 3 between two flanges 24 and 18A so that its notch 26 comes to grip the hub 14 of the articulation device 5 (FIG. figure 4 ).
  • the lateral portions 28B then slide on this cylindrical hub 14 until the protuberances 29 abut against the latter.
  • this user must exert sufficient thrust force to cause a slight deformation of the screen 3 at the indentations 26 causing the separation of the portions 28B to allow the bottom portions 28A to come to marry the hubs 14 .
  • the screen 3 is then free to pivot freely around the hubs 14 along the axis of rotation XX, the protuberances 29 exerting a holding force sufficient to hold the screen on the cap in the desired position to facilitate the locking of the device restraint ( Figures 5 and 5A ).
  • the distance between the flanges 18A and 24 is here slightly greater than the thickness of the screen at its lateral ends in order to limit the friction during the pivoting of the screen, while blocking these lateral ends in translation. along the axis of pivoting of these lateral ends.
  • each gib 32B is then oriented transversely relative to the axis of rotation XX and is opposite an oblong opening 58, so that the user simply pressing, for example with his thumb, the button 36A of the actuating element 36 causes a translational movement of the connecting member 30 along the axis YY in which the gib 32B passes gradually through this oblong opening 58.
  • the edge tends to return to its initial configuration, which causes the rotation movement of the actuating element 36 to continue until the second portion 40B in an arc of its outline 40, marry the annular flange 24 as illustrated by the figure 7 .
  • the connecting member 30 has rotated a quarter of a turn in a clockwise direction, so that the gib 32B is oriented at 90 ° of the oblong opening 58 ( Figure 7A ).
  • the user can release the actuating element 36, its reminder in translation towards the outside of the helmet along the axis YY being prevented by the abutment of the bolt 32B against the bottom surface 59A of the counterbore 59.
  • the retaining device 7 then occupies a stable engagement configuration in which the connecting member 30 is integral with the plate 18.
  • the rod 32A which passes right through the oblong opening 58, is clamped by the two concentric edges of the oblong opening 58, which also blocks any radial movement to the axis YY of the connecting member 30 and does not therefore allows it to go through the oblong opening 58 when pivoting the screen vis-à-vis the cap 2 along the axis of rotation XX.
  • the retaining device 7 thus allows only the pivoting of the screen 3 and this, within the limits of the angular portion of the oblong opening 58.
  • the user To open the screen 3, the user must first introduce his thumb between the concave rear portion of the wall 62 and the recess 68, then slightly move this wall 62 towards the outside of the helmet 1.
  • each actuating element 36 which goes against the restoring force exerted by each edge 43. (tending to press element 36 against the flange 24) and is sufficient to cause elastic deformation at this edge 43 allowing the continuation of rotation.
  • the connecting members 30 are returned by the springs 34 to their retracted position where the bacon are housed in the recesses 50.
  • Each retaining device 7 then occupies its disengagement configuration in which it is disengaged from the corresponding plate 18, so that the screen 3 can be separated from the cap 2 by a radial tensile force causing the notches 26 of the hubs to disengage. 14.
  • the notches at the lateral ends of the helmet have a different contour and / or do not have protrusion.
  • the plate of the retaining device and the circular wall of the articulation device are separate parts.

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  • Helmets And Other Head Coverings (AREA)

Abstract

The helmet (1) has a reversible assembling unit including a retaining device (7) arranged on a side. The device has a plate formed with an oblong opening (58) centered on a rotation axis (XX). A connection member (30) is moved on a shield (3) along an axis (YY). The device occupies an engagement configuration in which the member is secured to the plate and partially passes the opening side by side, so that the member crosses the opening while pivoting the shield opposite to a cap and a disengagement configuration in which the member is disengaged from the plate.

Description

Arrière-plan de l'inventionBackground of the invention

La présente invention se rapporte au domaine général des casques, en particulier des casques pour motocyclistes.The present invention relates to the general field of helmets, in particular helmets for motorcyclists.

Un tel casque comporte classiquement une calotte pourvue d'une ouverture à l'avant, un écran translucide de protection du visage, et des moyens de montage pour que l'écran puisse pivoter par rapport à la calotte, selon un axe de rotation, entre une position de fermeture dans laquelle l'écran recouvre totalement l'ouverture et une position d'ouverture maximale dans laquelle l'écran est au moins partiellement désengagé de cette ouverture.Such a helmet conventionally comprises a cap having an opening at the front, a translucent screen for protecting the face, and mounting means for the screen to pivot relative to the cap, along an axis of rotation, between a closed position in which the screen completely covers the opening and a maximum open position in which the screen is at least partially disengaged from this opening.

On connaît déjà de nombreux moyens de montage à pivotement entre l'écran et la calotte.Many pivotal mounting means are already known between the screen and the cap.

Ainsi, il est connu de fixer, de chaque côté de la calotte, une vis qui s'étend au travers d'un orifice correspondant percé dans l'écran.Thus, it is known to fix, on each side of the cap, a screw which extends through a corresponding hole pierced in the screen.

Ce type de dispositif ne permet pas d'obtenir un guidage en pivotement très précis à cause du faible diamètre de la vis formant pivot. Par ailleurs, il nécessite l'utilisation d'un outil pour désolidariser l'écran de la calotte.This type of device does not provide a very precise pivoting guidance because of the small diameter of the pivot screw. Moreover, it requires the use of a tool to separate the screen of the cap.

On connaît aussi des systèmes de liaison sophistiqués comportant un nombre de pièces élevé, de sorte qu'ils sont difficiles à démonter pour l'utilisateur notamment lorsque ce dernier souhaite séparer l'écran de la calotte, par exemple pour le nettoyer ou le remplacer par un écran neuf ou teinté.There are also known sophisticated connection systems with a high number of parts, so that they are difficult to dismount for the user especially when the latter wants to separate the screen of the cap, for example to clean or replace it by a new screen or tinted.

Il est également connu de la demande de brevet français 2 785 505 , un casque qui présente sur chacun de ses côtés, un dispositif qui comporte, un tourillon fixé sur la calotte et un bouton poussoir monté en translation sur l'axe du tourillon. Le dispositif est en outre muni de billes mobiles radialement dans la paroi latérale du tourillon entre une position escamotée et une position saillante en fonction de la position relative du bouton par rapport à ce tourillon.It is also known from the French patent application 2,785,505 , a helmet which has on each of its sides, a device which comprises, a trunnion fixed on the cap and a button pusher mounted in translation on the axis of the trunnion. The device is further provided with balls movable radially in the side wall of the journal between a retracted position and a projecting position according to the relative position of the button relative to this journal.

Chaque dispositif coopère avec une extrémité latérale correspondante de l'écran par une ouverture circulaire dont le pourtour forme moyeu pour le tourillon et présente une gorge torique épousant la forme des billes.Each device cooperates with a corresponding lateral end of the screen by a circular opening whose circumference forms a hub for the trunnion and has a toric groove matching the shape of the balls.

Ainsi, lorsque le dispositif est en position saillante, les billes sont engagées sans la gorge de sorte à permettre le pivotement de l'écran mais à empêcher son extraction. A l'inverse, lorsque le dispositif est en position escamoté, les billes sont rétractées dans le tourillon et ne s'opposent plus au retrait de l'écran.Thus, when the device is in the projecting position, the balls are engaged without the groove so as to allow the pivoting of the screen but to prevent its extraction. Conversely, when the device is in the retracted position, the balls are retracted into the trunnion and no longer oppose the removal of the screen.

Ce type de dispositif qui facilite grandement les opérations de montage/démontage de l'écran et de la calotte, présente cependant certains risques de désolidarisation accidentelle de l'écran lors d'une chute à grande vitesse du porteur, ce qui peut entrainer des projections de gravillons et/ou de sable au niveau des yeux.This type of device which greatly facilitates the assembly / disassembly of the screen and the cap, however, has certain risks of accidental disconnection of the screen during a fall at high speed of the carrier, which can cause projections gravel and / or sand in the eyes.

Objet et résumé de l'inventionObject and summary of the invention

La présente invention vise donc à proposer un casque facilitant les opérations de montage/démontage de l'écran sur la calotte, tout en présentant, en configuration d'utilisation, une sécurité améliorée.The present invention therefore aims to provide a helmet facilitating the assembly / disassembly of the screen on the cap, while presenting, in the configuration of use, improved security.

Elle propose à cet effet, un casque comportant une calotte pourvue d'une ouverture, un écran, des moyens de montage réversible dudit écran sur ladite calotte comportant de chaque côté dudit casque un dispositif d'articulation entre ladite calotte et une extrémité latérale correspondante dudit écran de sorte qu'il soit apte à pivoter par rapport à ladite calotte, selon un axe de rotation XX, entre une position de fermeture dans laquelle ledit écran recouvre totalement ladite ouverture et une position d'ouverture maximale dans laquelle ledit écran est au moins partiellement désengagé de ladite ouverture, caractérisé en ce que lesdits moyens de montage réversible comportent en outre sur au moins un côté dudit casque, un dispositif de retenue comportant une platine fixée sur la face externe de ladite calotte et munie d'une ouverture oblongue en arc de cercle centrée sur ledit axe de rotation XX, et un organe de liaison monté mobile en rotation sur ledit écran selon un axe YY parallèle audit axe de rotation XX, ledit dispositif de retenue étant apte à occuper une configuration d'engagement dans laquelle ledit organe de liaison est solidaire de ladite platine et traverse de part en part ladite ouverture oblongue de sorte que ledit organe de liaison parcourt ladite ouverture oblongue lors du pivotement dudit écran vis-à-vis de ladite calotte, et une configuration de désengagement dans laquelle ledit organe de liaison est désengagé de ladite platine.It proposes for this purpose, a helmet comprising a cap provided with an opening, a screen, means reversibly mounting said screen on said cap having on each side of said helmet a hinge device between said cap and a corresponding lateral end of said screen so that it is pivotable relative to said cap, along an axis of rotation XX, between a closed position in which said screen completely covers said opening and a maximum open position in which said screen is at least partially disengaged from said opening, characterized in that said reversible mounting means further comprise on at least one side of said helmet, a retaining device comprising a plate fixed on the outer face of said cap and provided with an oblong opening in an arc of a circle centered on said axis of rotation XX, and a connecting member rotatably mounted on said screen along an axis YY parallel to said axis of rotation XX, said holding device being able to occupy an engagement configuration in which said connecting member is integral with said plate and passes right through said oblong opening so that said connecting member traverses said oblong opening when pivoting said screen vis-à-vis said cap, and a disengagement configuration in which said connecting member is disengaged from said platen.

Le casque selon l'invention comporte ainsi sur chacun des ses côtés, un dispositif d'articulation permettant à l'extrémité latérale correspondante de l'écran de pivoter par rapport à la calotte, et un dispositif de retenue qui rend solidaire l'écran de la calotte.The helmet according to the invention thus has on each of its sides, a hinge device allowing the corresponding lateral end of the screen to pivot relative to the cap, and a retaining device which makes the screen of the cap.

Cette particularité permet au dispositif de retenue de s'affranchir des contraintes liées au fait que dans les systèmes antérieurs, le dispositif de retenue devait également assurer la fonction de pivotement de l'écran sur la calotte (et de ce fait présenter un diamètre assez important pour assurer une précision suffisante pour ce pivotement).This feature allows the retaining device to overcome the constraints related to the fact that in previous systems, the retaining device was also to provide the pivoting function of the screen on the cap (and thus have a fairly large diameter to ensure sufficient accuracy for this pivot).

Notamment, le dispositif de retenue du casque selon l'invention, permet lorsqu'il occupe sa configuration d'engagement, de bloquer fermement quasiment l'ensemble des mouvements relatifs possibles entre l'écran et la calotte.In particular, the retaining device of the helmet according to the invention allows, when it occupies its engagement configuration, to firmly lock virtually all possible relative movements between the screen and the cap.

Ainsi, le fait que cet organe soit solidaire de la platine fixée sur la calotte, empêche les extrémités de l'écran de se déplacer en translation vers l'extérieur du casque selon l'axe de rotation; tandis que le fait que l'organe traverse l'ouverture oblongue, empêche tout mouvement radial à cet axe de rotation.Thus, the fact that this member is integral with the plate fixed on the cap, prevents the ends of the screen to move in translation to the outside of the helmet along the axis of rotation; while the fact that the member passes through the oblong opening, prevents any radial movement to this axis of rotation.

Seul est autorisé, le pivotement autour de l'axe de rotation et ce, dans les limites de la portion angulaire de l'arc de cercle que forme l'ouverture oblongue.Only is permitted, the pivoting around the axis of rotation and this, within the limits of the angular portion of the arc that forms the oblong opening.

Par ailleurs, l'organe de liaison de ce dispositif de retenue étant monté mobile en rotation sur l'écran, sa manipulation est facilitée pour l'utilisateur même lorsque ce dernier porte le casque sur sa tête.Furthermore, the connecting member of the retaining device being rotatably mounted on the screen, its handling is facilitated for the user even when the latter wears the helmet on his head.

Selon des caractéristiques préférées du casque, pour des raisons de simplicité et de commodité tant à la fabrication qu'à l'utilisation :

  • ledit organe de liaison comporte à son extrémité libre située du côté interne dudit écran, un lardon orienté transversalement audit axe de rotation XX et apte dans ladite configuration d'engagement, à coopérer en butée avec une surface de ladite platine, située sur le pourtour interne de ladite ouverture oblongue, pour rendre solidaire ledit organe de liaison et ladite platine;
  • ladite surface est formée par le fond d'un lamage situé sur le pourtour interne de la dite ouverture oblongue;
  • ledit organe de liaison est monté mobile en translation et en rotation sur ledit écran selon ledit axe parallèle YY par l'intermédiaire d'une tige cylindrique traversant une ouverture circulaire dudit écran;
  • la face interne de l'écran comporte un renfoncement apte à recevoir ledit lardon de l'organe de liaison lorsque ledit dispositif de retenue occupe ladite configuration de désengagement;
  • ledit organe de liaison comporte, du côté externe dudit écran et à l'opposée dudit lardon, un élément d'actionnement manoeuvrable manuellement pour faire occuper audit organe de liaison une position enfoncée dans laquelle ledit lardon saille de ladite ouverture oblongue de ladite platine et où ledit organe de liaison est entrainable en rotation via ledit élément d'actionnement pour que ledit dispositif de retenue vienne occuper ladite configuration d'engagement, et une position rétractée dans laquelle ledit lardon est reçu dans ledit renfoncement dudit écran et où ledit dispositif de retenue occupe ladite configuration de dégagement;
  • ledit dispositif de retenue comporte un ressort de rappel de l'organe de liaison dans ladite position rétractée;
  • chaque dit dispositif d'articulation comporte un moyeu fixé sur ladite calotte et apte à coopérer avec une portion en arc de cercle du contour d'une échancrure située à l'extrémité latérale correspondante dudit écran;
  • ledit moyeu est pris en sandwich par deux flasques circulaires interne et externe;
  • le contour dudit élément d'actionnement comporte une portion en arc de cercle apte à venir épouser la tranche dudit flasque externe après la rotation dudit organe de liaison dans un premier sens de rotation, de sorte que ledit dispositif de retenue occupe ladite configuration d'engagement;
  • ledit élément d'actionnement comporte une arête d'encliquetage déformable élastiquement au cours de la rotation dudit organe de liaison dans ledit premier sens de rotation;
  • ledit élément d'actionnement comporte une arête d'extrémité pour empêcher la rotation dudit organe de liaison dans le sens contraire audit un premier sens de rotation, lorsque ledit organe de liaison occupe ladite position enfoncée;
  • ladite platine est montée dans un renfoncement correspondant que comporte ladite calotte de chaque côté dudit casque;
  • ledit casque comporte des moyens de fixation ajustable de ladite platine sur ladite calotte;
  • lesdits moyens de fixation ajustable comportent deux vis prévues pour coopérer avec deux perçages respectifs dont le diamètre est supérieur à celui desdites vis; et/ou
  • lesdits moyens de montage réversible comportent deux dits dispositifs de retenue disposés de chaque côté dudit casque.
According to preferred characteristics of the helmet, for reasons of simplicity and convenience both in manufacture and use:
  • said connecting member comprises at its free end located on the inner side of said screen, a gibber oriented transversely to said axis of rotation XX and adapted in said engagement configuration, to cooperate in abutment with a surface of said plate, located on the inner periphery said oblong opening, to make said connecting member and said plate integral;
  • said surface is formed by the bottom of a countersink located on the inner periphery of said oblong opening;
  • said connecting member is movably mounted in translation and rotation on said screen along said parallel axis YY through a cylindrical rod passing through a circular opening of said screen;
  • the inner face of the screen comprises a recess adapted to receive said bacon of the connecting member when said retainer occupies said disengagement configuration;
  • said connecting member comprises, on the outer side of said screen and on the opposite side of said bolete, an actuating element operable manually to cause said connecting member to occupy a recessed position in which said bacon protrudes from said oblong opening of said platen and said connecting member is rotatable via said actuating member for said retainer to occupy said engagement configuration, and a position retracted wherein said bacon is received in said recess of said screen and wherein said retainer occupies said clearance configuration;
  • said retainer comprises a return spring of the connecting member in said retracted position;
  • each said hinge device comprises a hub fixed on said cap and adapted to cooperate with a circular arc portion of the contour of a notch located at the corresponding lateral end of said screen;
  • said hub is sandwiched by two inner and outer circular flanges;
  • the contour of said actuating element comprises an arcuate portion adapted to fit the edge of said outer flange after the rotation of said connecting member in a first direction of rotation, so that said retainer occupies said engagement configuration ;
  • said actuating element comprises a detent ridge elastically deformable during the rotation of said connecting member in said first direction of rotation;
  • said actuating member has an end edge for preventing rotation of said connecting member in a direction opposite to a first direction of rotation, when said connecting member occupies said depressed position;
  • said plate is mounted in a corresponding recess that includes said cap on each side of said helmet;
  • said helmet comprises adjustable fastening means of said plate on said cap;
  • said adjustable fixing means comprise two screws provided to cooperate with two respective holes whose diameter is greater than that of said screws; and or
  • said reversible mounting means comprise two said retainers disposed on each side of said helmet.

Brève description des dessinsBrief description of the drawings

L'exposé de l'invention sera maintenant poursuivi par la description détaillée d'un exemple de réalisation, donnée ci-après à titre illustratif mais non limitatif, en référence aux dessins annexés, sur lesquels:

  • la figure 1 est une vue de côté d'un casque selon l'invention sur laquelle l'écran est monté sur la calotte et se trouver en position de fermeture ;
  • les figures 2 et 3 sont des vues éclatées en perspective, prises à 180° l'une de l'autre, des dispositifs d'articulation et de retenue de l'écran que comporte le casque de la figure 1;
  • les figures 4, 5, 6 et 7 sont des vues de côté d'une portion du casque de la figure 1 qui illustrent certaines étapes du montage de l'écran sur la calotte; et
  • les figures 4A, 5A, 5B et 7A sont des vues en perspective des dispositifs d'articulation et de retenue de l'écran, prises suivant le même angle que celui de la figure 3, et illustrant également certaines étapes du montage de l'écran sur la calotte.
The description of the invention will now be continued by the detailed description of an exemplary embodiment, given below by way of illustration but without limitation, with reference to the appended drawings, in which:
  • the figure 1 is a side view of a helmet according to the invention on which the screen is mounted on the cap and be in the closed position;
  • the figures 2 and 3 are exploded perspective views, taken at 180 ° from each other, of the articulation and retaining devices of the screen that the helmet of the figure 1 ;
  • the figures 4 , 5 , 6 and 7 are side views of a portion of the helmet of the figure 1 which illustrate some steps of mounting the screen on the cap; and
  • the Figures 4A , 5A , 5B and 7A are perspective views of the hinge and retaining devices of the screen, taken at the same angle as that of the figure 3 , and also illustrating some steps of mounting the screen on the cap.

En référence à la figure 1, le casque 1 selon l'invention est un casque de type intégral qui comporte une calotte externe rigide 2 pourvue d'une ouverture 2A (figure 4) à l'avant, un calotin interne (non visible) et un écran 3.With reference to the figure 1 , the helmet 1 according to the invention is an integral helmet which comprises a rigid outer cap 2 provided with an opening 2A ( figure 4 ) at the front, an internal cap (not visible) and a screen 3.

Au sens de la présente demande, le calotin désigne une coque plus épaisse et moins rigide que la calotte externe, recouvrant une partie substantielle ou la totalité de la face interne de cette calotte externe. Généralement moulé en une mousse synthétique expansé telle que du polystyrène, le calotin a pour fonction d'absorber en se déformant, une grande partie de l'énergie dégagée lors d'un choc, notamment en cas de chute.For the purposes of the present application, the cap refers to a heavier shell and less rigid than the outer cap, covering a substantial portion or the entire inner face of the outer cap. Generally molded in an expanded synthetic foam such as polystyrene, the cap has the function of absorbing by deforming a large part of the energy released during an impact, especially in case of a fall.

L'écran 3 présente ici une épaisseur variable sur sa longueur. Cette épaisseur qui est d'environ 4 mm dans sa zone de vision centrale, diminue ainsi progressivement vers ses deux extrémités latérales où elle est inférieure à 3 mm. Cette variation de l'épaisseur de l'écran 3 permet d'optimiser la distorsion optique sur cet écran 3 et procure ainsi un meilleur confort visuel pour le porteur.The screen 3 here has a variable thickness along its length. This thickness which is about 4 mm in its central zone of vision, thus decreases progressively towards its two lateral ends where it is less than 3 mm. This variation of the thickness of the screen 3 optimizes the optical distortion on this screen 3 and thus provides a better visual comfort for the wearer.

Le casque 1 comporte également, sur chacun de ses côtés, des moyens de montage réversible de l'écran 3 sur la calotte 2.The helmet 1 also comprises, on each of its sides, reversible mounting means of the screen 3 on the cap 2.

Ces moyens de montage réversible comportent un dispositif d'articulation 5 entre la calotte 2 et une extrémité latérale correspondante 6 de l'écran 3, et un dispositif de retenue 7 de l'écran 3 sur la calotte 2.These reversible mounting means comprise a hinge device 5 between the cap 2 and a corresponding lateral end 6 of the screen 3, and a retaining device 7 of the screen 3 on the cap 2.

Le casque 1 présente en outre, sur l'un de ses côtés, un dispositif de verrouillage 8 de l'écran 3 en position fermé.The helmet 1 further has, on one of its sides, a locking device 8 of the screen 3 in the closed position.

On va maintenant décrire en détails à l'appui des figures 2 et 3, ces trois dispositifs 5, 7 et 8.We will now describe in detail in support of figures 2 and 3 these three devices 5, 7 and 8.

Le dispositif d'articulation 5 comporte un premier élément 10 en forme de chapeau de canotier dont le sommet 12 de la paroi cylindrique 14 est emboité dans un renfoncement 16 d'une paroi 18A en forme de disque.The hinge device 5 comprises a first element 10 in the form of a boater's hat whose top 12 of the cylindrical wall 14 is fitted into a recess 16 of a disk-shaped wall 18A.

Le sommet 12 et le fond du renfoncement 16 présentent chacun un perçage central 19, 20 prévu pour le passage d'une vis de montage 22 qui est vissée sur la calotte externe 2.The top 12 and the bottom of the recess 16 each have a central bore 19, 20 provided for the passage of a mounting screw 22 which is screwed onto the outer cap 2.

Une fois monté, le dispositif d'articulation 5 se présente sous la forme d'une bobine dont le moyeu central, constitué par la paroi cylindrique 14, est pris en sandwich par deux flasques circulaires interne et externe constitués respectivement par la paroi en forme de disque 18A et par le bord annulaire 24 du premier élément 10 en forme de canotier.Once mounted, the hinge device 5 is in the form of a coil whose central hub, consisting of the cylindrical wall 14, is sandwiched by two inner and outer circular flanges respectively formed by the wall-shaped disc 18A and the annular edge 24 of the first element 10 in the form of a boater.

Chaque dispositif d'articulation 5 est prévu pour coopérer avec une échancrure oblongue 26 située à l'extrémité latérale correspondante de l'écran 3. La tranche 28 de chaque échancrure oblongue présente ainsi une portion de fond hémicirculaire 28A dont le diamètre correspond à celui du moyeu central 14, et deux portions latérales rectilignes parallèles 28B qui présentent chacune une protubérance 29.Each articulation device 5 is designed to cooperate with an oblong notch 26 located at the corresponding lateral end of the screen 3. The wafer 28 of each oblong notch thus has a hemicircular bottom portion 28A whose diameter corresponds to that of the central hub 14, and two parallel rectilinear side portions 28B each having a protuberance 29.

Le dispositif de retenue 7 est situé à l'avant du dispositif d'articulation et à proximité de ce dernier. Il comporte un organe de liaison 30 monté mobile en translation et en rotation sur l'écran 3 et une platine 18 qui intègre ici, la paroi circulaire 18A du dispositif d'articulation.The retaining device 7 is situated at the front of the articulation device and close to the latter. It comprises a connecting member 30 mounted mobile in translation and rotation on the screen 3 and a plate 18 which here incorporates the circular wall 18A of the hinge device.

L'organe de liaison 30 comporte un élément de verrouillage 32 présentant un profil en T, un ressort hélicoïdal de compression 34, un élément d'actionnement 36 et une vis 38.The connecting member 30 comprises a locking element 32 having a T-shaped profile, a helical compression spring 34, an actuating element 36 and a screw 38.

L'élément de verrouillage 32 est formé d'une tige cylindrique taraudée 32A et d'un lardon ovale 32B s'étendant transversalement à cette tige 32A à l'une de ses extrémités.The locking element 32 is formed of a threaded cylindrical rod 32A and an oval gib 32B extending transversely to this rod 32A at one of its ends.

L'élément d'actionnement 36 qui présente globalement un contour 40 en forme de virgule, comporte un bouton central 36A creux et muni d'un perçage 36B en son centre pour le passage de la vis 38.The actuating element 36, which generally has a comma-shaped contour 40, comprises a hollow central knob 36A and provided with a hole 36B at its center for the passage of the screw 38.

Le contour 40 en forme de virgule comporte une première portion principale 40A en arc de cercle qui s'étend entre deux arêtes d'extrémité supérieure 41 et inférieure 42, une deuxième portion 40B également en arc de cercle présentant le même rayon de courbure que le flasque annulaire 24 et qui s'étend entre l'arête supérieure 41 et une arête d'encliquetage 43, et une troisième portion 40C en sinusoïde qui s'étend entre l'arête d'encliquetage 43 et l'arête inférieure 42 (figure 4).The contour 40 in the form of a comma has a first main portion 40A in an arc that extends between two upper end edges 41 and lower 42, a second portion 40B also in an arc having the same radius of curvature as the annular flange 24 and extending between the upper edge 41 and a ratchet edge 43, and a third sinusoidal portion 40C extending between the ratchet edge 43 and the lower edge 42 ( figure 4 ).

L'élément d'actionnement 36 comporte également le long des deuxième et troisième portions 40B, 40C de son contour 40, une lumière allongée 36C (figure 4) qui comme on le verra plus en détails par la suite, procure une certaine élasticité à cet élément d'actionnement 36 au niveau de l'arête d'encliquetage 43.The actuating element 36 also comprises, along the second and third portions 40B, 40C of its contour 40, an elongate light 36C ( figure 4 ) which, as will be seen in more detail later, provides a certain elasticity to this actuating element 36 at the ratchet edge 43.

L'écran 3 comporte à proximité et à l'avant de chacune des deux échancrures oblongues 26 d'extrémité, une ouverture traversante circulaire 46 s'étendant selon un axe YY parallèle à l'axe du moyeu 14 formant axe de rotation XX pour l'écran 3, et dont la partie interne est recouverte ici par une bague annulaire 48 anti-frottements. Sur sa face interne et en périphérie de chaque ouverture circulaire 46, l'écran 3 comporte en outre un renfoncement ovale 50 dont les dimensions correspondent à celles d'un lardon 32B, de sorte à former un logement creux pour ce dernier.The screen 3 comprises near and at the front of each of the two oblong end slots 26, a circular through opening 46 extending along an axis YY parallel to the axis of the hub 14 forming an axis of rotation XX for the screen 3, and whose inner portion is covered here by an annular ring 48 anti-friction. On its inner face and at the periphery of each circular opening 46, the screen 3 further comprises an oval recess 50 whose dimensions correspond to those of a gib 32B, so as to form a hollow housing for the latter.

L'élément de liaison 30 est monté sur l'écran 3 de la manière suivante. L'élément de verrouillage 32 est tout d'abord introduit depuis le côté interne de l'écran 3 et par son extrémité libre 32C (celle opposée au lardon 32B), dans l'ouverture circulaire 46. Le ressort hélicoïdal 34 est ensuite positionné autour de la portion de la tige 32A ayant traversé l'écran 3, puis l'extrémité libre 32C de cette tige est emboitée dans l'élément d'actionnement au niveau de son bouton central creux 36A. Enfin, la vis 38 est introduite dans l'orifice circulaire 36B de ce bouton 36A puis vissée au taraudage de la tige 32A.The connecting element 30 is mounted on the screen 3 in the following manner. The locking element 32 is firstly introduced from the inner side of the screen 3 and its free end 32C (the one opposite the bolt 32B) into the circular opening 46. The coil spring 34 is then positioned around of the portion of the rod 32A having passed through the screen 3, then the free end 32C of this rod is engaged in the actuating element at its hollow central button 36A. Finally, the screw 38 is inserted into the circular orifice 36B of this button 36A and screwed to the thread of the rod 32A.

On va maintenant décrire plus en détail la platine 18, toujours à l'appui des figures 2 et 3.Platinum 18 will now be described in greater detail, again in support of figures 2 and 3 .

Cette platine 18 comporte à l'avant de la paroi en forme de disque 18A et dans son prolongement, une paroi 18B présentant globalement la forme d'un triangle équilatéral dont l'un des sommets 52 forme l'extrémité avant de cette platine.This plate 18 comprises at the front of the disk-shaped wall 18A and in its extension, a wall 18B generally having the shape of an equilateral triangle, one of the vertices 52 forms the front end of this plate.

A proximité de ce sommet 52, la paroi 18B comporte un perçage 54 pour le passage d'une vis de montage 56 vissée sur la calotte externe 2. Sur le pourtour externe de ce perçage, la paroi 18B présente un lamage 55 prévu pour recevoir la tête de la vis 56 (figure 4) afin que cette dernière ne saille pas de la face externe de la platine 18.In the vicinity of this apex 52, the wall 18B comprises a bore 54 for the passage of a mounting screw 56 screwed onto the outer cap 2. On the outer periphery of this hole, the wall 18B has a countersink 55 provided to receive the head of the screw 56 ( figure 4 ) so that it does not protrude from the outer face of the plate 18.

Cette paroi 18B comporte également à l'arrière du perçage 54, une ouverture oblongue 58 en arc de cercle, centrée sur l'axe de rotation XX et formant une portion angulaire comprise entre 15 et 25°.This wall 18B also comprises at the rear of the bore 54, an oblong opening 58 in an arc of a circle, centered on the axis of rotation XX and forming an angular portion of between 15 and 25 °.

Cette ouverture 58 présente une largeur légèrement supérieure à celle du lardon 32B mais très nettement inférieure à sa longueur.This opening 58 has a width slightly greater than that of the gib 32B but very significantly less than its length.

Sur le pourtour interne de cette ouverture oblongue 58, la paroi 18B comporte un lamage 59 dont la largeur est légèrement supérieure à la longueur du lardon 32B.On the inner periphery of this oblong opening 58, the wall 18B has a countersink 59 whose width is slightly greater than the length of the gibber 32B.

Chaque platine 18 est fixée de chaque côté du casque, à l'aide des deux vis de montage 22 et 56 traversant respectivement les perçages 19 et 54, dans un renfoncement correspondant (non visible sur les figures) de la calotte externe 2.Each plate 18 is fixed on each side of the helmet, using the two mounting screws 22 and 56 respectively passing through the holes 19 and 54, in a corresponding recess (not visible in the figures) of the outer cap 2.

Le diamètre de ces perçages 19, 54 est supérieur à celui des vis de montage 22, 56 (ici, d'environ 2 mm), de sorte que la position des platines 18 sur la calotte 2 puisse être ajustée afin de s'assurer que l'écran en position de fermeture, comprime la lèvre élastique 60 située sur le pourtour externe de l'ouverture 2A (figure 4). Cette possibilité de réglage fin de la position des platines 18 permet d'obtenir une excellente étanchéité du casque et de rattraper les légères différences de côtes pouvant exister entre des calottes.The diameter of these bores 19, 54 is greater than that of the mounting screws 22, 56 (here about 2 mm), so that the position of the plates 18 on the cap 2 can be adjusted to ensure that the screen in the closed position, compresses the elastic lip 60 located on the outer periphery of the opening 2A ( figure 4 ). This possibility of fine adjustment of the position of the plates 18 makes it possible to obtain a excellent waterproofness of the helmet and catch the slight differences in ribs that may exist between caps.

Ces vis de montage 22, 56 présentent une amorce de rupture prévue pour rompre sous une contrainte prédéterminée, pouvant intervenir notamment pendant une chute du porteur avec l'écran 3 partiellement ouvert, si la tranche inférieure de cet écran 3 vient heurter violemment un obstacle.These mounting screws 22, 56 have a breaking primer designed to break under a predetermined stress, which can occur especially during a fall of the carrier with the screen 3 partially open, if the lower edge of this screen 3 violently hits an obstacle.

Ainsi, la rupture de ces vis provoque la désolidarisation quasi-instantanée des platines 18 (et donc de l'écran) vis-à-vis du casque, ce qui évite que le choc ne soit répercuté trop violemment au niveau du rachis vertical du porteur.Thus, the rupture of these screws causes almost instantaneous separation of the plates 18 (and therefore the screen) vis-à-vis the helmet, which prevents the shock is reflected too violently at the vertical spine of the wearer .

Ainsi, les platines 18 une fois montées, se trouvent à fleur de face externe de la calotte 2, ce qui permet d'éviter tout vide entre l'écran 3 et la calotte 2 externe et procure ainsi une bonne étanchéité du casque lorsque cet écran est en position de fermeture.Thus, the plates 18 once mounted, are flush outer face of the cap 2, which avoids any vacuum between the screen 3 and the outer cap 2 and thus provides a good seal of the helmet when the screen is in the closed position.

Par ailleurs, ces platines 18 présentent une épaisseur réduite (comprise entre 2 et 5 mm) en regard de celles utilisées généralement dans ce type de dispositifs, ce qui permet de limiter la profondeur des renfoncements et donc de conserver une épaisseur importante de calotin afin d'améliorer la sécurité du casque.Moreover, these plates 18 have a reduced thickness (between 2 and 5 mm) in comparison with those used generally in this type of device, which allows to limit the depth of the recesses and thus to maintain a large thickness of calotin in order to to improve the safety of the helmet.

Le dispositif de verrouillage 8 est situé à l'avant du dispositif de retenue 7. Il comporte une paroi globalement triangulaire 62, ici moulée de matière avec l'écran 3, qui s'étend en léger débord de cet écran 3 et saille en pointe de sa tranche inférieure.The locking device 8 is located at the front of the retaining device 7. It comprises a generally triangular wall 62, here molded of material with the screen 3, which extends in a slight overhang of this screen 3 and protrudes into a point from its lower edge.

La paroi 62 présente un profil quasi rectiligne à l'avant et concave à l'arrière afin de faciliter sa manipulation par l'utilisateur comme on le verra ci-après plus en détails.The wall 62 has an almost rectilinear profile at the front and concave rear to facilitate its handling by the user as will be seen below in more detail.

L'extrémité inférieure en pointe de cette paroi 62 présente du côté interne, une dent d'encliquetage 64 formée d'une rampe biseautée 64A surmontée d'un décrochement 64B.The lower pointed end of this wall 62 has on the inner side, a ratchet tooth 64 formed of a beveled ramp 64A surmounted by a recess 64B.

Le dispositif 8 comporte également un ergot 66 qui saille d'un renfoncement 68 situé en périphérie de l'ouverture 2A de la calotte 2 (figure 4). Cet ergot est disposé de sorte à ce qu'il puisse coopérer avec la dent 64 lors de la fermeture compète de l'écran 3.The device 8 also comprises a lug 66 which protrudes from a recess 68 situated at the periphery of the opening 2A of the cap 2 ( figure 4 ). This lug is arranged so that it can cooperate with the tooth 64 during the complete closure of the screen 3.

On va maintenant décrire de façon détaillée les opérations à réaliser par l'utilisateur du casque pour procéder au montage et au démontage de l'écran 3 sur la calotte 2.We will now describe in detail the operations to be performed by the user of the helmet to proceed with the assembly and disassembly of the screen 3 on the cap 2.

Pour monter l'écran, celui-ci doit tout d'abord vérifier que chaque lardon 32B d'un l'organe de liaison 30 est bien logé dans le renfoncement correspondant 50 de sorte qu'il ne saille pas de cet écran et ne gêne pas le mouvement en translation de l'écran 3 vis-à-vis de la calotte 2 en direction du dispositif d'articulation 5.To mount the screen, it must first check that each panel 32B of a connecting member 30 is housed in the corresponding recess 50 so that it does not protrude from this screen and does not interfere not the movement in translation of the screen 3 vis-à-vis the cap 2 towards the articulation device 5.

Si tel n'est pas le cas, l'utilisateur doit simplement faire tourner l'élément d'actionnement 36 jusqu'à ce le lardon 32B se trouve aligné sur le renfoncement 50, l'effort de rappel exercé par le ressort 34 entrainant alors ce lardon 32B dans ce renfoncement 50.If this is not the case, the user must simply turn the actuating element 36 until the bolt 32B is aligned with the recess 50, the return force exerted by the spring 34 then causing this bacon 32B in this recess 50.

Chacun des organes de liaison 30 se trouve alors dans sa position rétractée dans laquelle il est bloqué en rotation par la coopération entre le lardon 32B et le renfoncement 50.Each of the connecting members 30 is then in its retracted position in which it is locked in rotation by the cooperation between the lardon 32B and the recess 50.

L'utilisateur peut alors introduire simultanément chaque extrémité latérale de l'écran 3 entre deux flasques 24 et 18A de sorte que son échancrure 26 vienne enserrer le moyeu 14 du dispositif d'articulation 5 (figure 4).The user can then simultaneously introduce each lateral end of the screen 3 between two flanges 24 and 18A so that its notch 26 comes to grip the hub 14 of the articulation device 5 (FIG. figure 4 ).

Les portions latérales 28B glissent alors sur ce moyeu cylindrique 14 jusqu'à ce que les protubérances 29 viennent en butée contre ce dernier.The lateral portions 28B then slide on this cylindrical hub 14 until the protuberances 29 abut against the latter.

A ce moment là, cet utilisateur doit exercer un effort de poussée suffisant pour provoquer une légère déformation de l'écran 3 au niveau des échancrures 26 entrainant l'écartement des portions 28B afin de permettre aux portions de fond 28A de venir épouser les moyeux 14.At this time, this user must exert sufficient thrust force to cause a slight deformation of the screen 3 at the indentations 26 causing the separation of the portions 28B to allow the bottom portions 28A to come to marry the hubs 14 .

L'écran 3 est alors libre de pivoter librement autour des moyeux 14 selon l'axe de rotation XX, les protubérances 29 exerçant un effort de retenue suffisant pour maintenir l'écran sur la calotte dans la position voulue afin de faciliter le verrouillage du dispositif de retenue (figures 5 et 5A).The screen 3 is then free to pivot freely around the hubs 14 along the axis of rotation XX, the protuberances 29 exerting a holding force sufficient to hold the screen on the cap in the desired position to facilitate the locking of the device restraint ( Figures 5 and 5A ).

Par ailleurs, la distance entre les flasques 18A et 24 est ici légèrement supérieure à l'épaisseur de l'écran au niveau de ses extrémités latérales afin de limiter les frottements lors du pivotement de l'écran, tout en bloquant ces extrémités latérales en translation selon l'axe de pivotement de ces extrémités latérales.Moreover, the distance between the flanges 18A and 24 is here slightly greater than the thickness of the screen at its lateral ends in order to limit the friction during the pivoting of the screen, while blocking these lateral ends in translation. along the axis of pivoting of these lateral ends.

Comme illustré sur la figure 5A, chaque lardon 32B est alors orienté transversalement par rapport à l'axe de rotation XX et se trouve en regard d'une ouverture oblongue 58, de sorte que l'utilisateur en appuyant simplement, par exemple avec son pouce, sur le bouton 36A de l'élément d'actionnement 36 provoque un mouvement de translation de l'organe de liaison 30 selon l'axe YY au cours duquel le lardon 32B traverse progressivement cette ouverture oblongue 58.As illustrated on the Figure 5A each gib 32B is then oriented transversely relative to the axis of rotation XX and is opposite an oblong opening 58, so that the user simply pressing, for example with his thumb, the button 36A of the actuating element 36 causes a translational movement of the connecting member 30 along the axis YY in which the gib 32B passes gradually through this oblong opening 58.

Lorsque l'élément d'actionnement 36 arrive en butée contre la face externe de l'écran 3, il occupe sa position enfoncée illustrée sur la figure 5B dans laquelle le lardon 32B a traversé de part en part l'ouverture oblongue 58 et se trouve au niveau du lamage 59.When the actuating element 36 comes into abutment against the outer face of the screen 3, it occupies its depressed position illustrated on FIG. Figure 5B wherein the gib 32B has passed right through the oblong opening 58 and is at the countersink 59.

L'utilisateur peut alors tout en maintenant la pression exercée sur le bouton 36A par son pouce, entrainer en rotation cet élément d'actionnement 36 avec l'un des ses autres doigts afin de rendre solidaire l'organe de liaison 30 de la platine 18.The user can then while maintaining the pressure exerted on the button 36A by his thumb, rotate this actuating element 36 with one of his other fingers to make the connecting member 30 of the plate 18 integral. .

On peut remarquer notamment sur la figure 5 que cet entrainement en rotation ne peut s'effectuer que dans le sens des aiguilles d'un montre, l'arête inférieure 42 de l'élément d'actionnement venant en effet quasi instantanément buter sur le flasque 24 si l'utilisateur tente d'effectuer une rotation en sens inverse.We can notably notice on the figure 5 that this rotational drive can be performed only in the direction of clockwise, the lower edge 42 of the actuating element in fact almost immediately abut on the flange 24 if the user tries to rotate in the opposite direction.

La rotation dans le sens des aiguilles d'une montre de l'élément d'actionnement 36, entraine progressivement l'arête d'encliquetage 43 vers le flasque 24 jusqu'à ce qu'elle vienne buter contre ce flasque comme illustré sur la figure 6.The clockwise rotation of the actuating element 36 progressively drives the ratchet edge 43 towards the flange 24 until it abuts against this flange as shown in FIG. figure 6 .

L'utilisateur doit alors exercer un effort suffisant sur cet élément d'actionnement 36 pour provoquer une déformation élastique au niveau de l'arête 43 qui permettre la poursuite de la rotation.The user must then exert sufficient force on this actuating element 36 to cause elastic deformation at the edge 43 which allow the continuation of the rotation.

On rappelle ici que l'élasticité de l'élément d'actionnement 36 au niveau de cette arête 43 est procurée par la lumière allongée 36C.It is recalled here that the elasticity of the actuating element 36 at this edge 43 is provided by the elongate light 36C.

Une fois ce point dur passé, l'arête a tendance à reprendre sa configuration initiale ce qui entraine la poursuite du mouvement de rotation de l'élément d'actionnement 36 jusqu'à ce que la deuxième portion 40B en arc de cercle de son contour 40, vienne épouser le flasque annulaire 24 comme illustré par la figure 7.Once this hard point has passed, the edge tends to return to its initial configuration, which causes the rotation movement of the actuating element 36 to continue until the second portion 40B in an arc of its outline 40, marry the annular flange 24 as illustrated by the figure 7 .

Dans cette position, l'organe de liaison 30 a effectué une rotation d'un quart de tour dans le sens des aiguilles d'une montre, de sorte que le lardon 32B est orienté à 90° de l'ouverture oblongue 58 (figure 7A).In this position, the connecting member 30 has rotated a quarter of a turn in a clockwise direction, so that the gib 32B is oriented at 90 ° of the oblong opening 58 ( Figure 7A ).

Ainsi, l'utilisateur peut relâcher l'élément d'actionnement 36, son rappel en translation vers l'extérieur du casque selon l'axe YY étant empêché par la venue en butée du lardon 32B contre la surface de fond 59A du lamage 59.Thus, the user can release the actuating element 36, its reminder in translation towards the outside of the helmet along the axis YY being prevented by the abutment of the bolt 32B against the bottom surface 59A of the counterbore 59.

Le dispositif de retenue 7 occupe alors une configuration stable d'engagement dans laquelle l'organe de liaison 30 est solidaire de la platine 18.The retaining device 7 then occupies a stable engagement configuration in which the connecting member 30 is integral with the plate 18.

La tige 32A qui traverse de part en part l'ouverture oblongue 58, est enserrée par les deux bords concentriques de l'ouverture oblongue 58, ce qui bloque également tout mouvement radial à l'axe YY de l'organe de liaison 30 et ne l'autorise donc qu'à parcourir l'ouverture oblongue 58 lors du pivotement de l'écran vis-à-vis de la calotte 2 selon l'axe de rotation XX.The rod 32A which passes right through the oblong opening 58, is clamped by the two concentric edges of the oblong opening 58, which also blocks any radial movement to the axis YY of the connecting member 30 and does not therefore allows it to go through the oblong opening 58 when pivoting the screen vis-à-vis the cap 2 along the axis of rotation XX.

Le dispositif de retenue 7 permet donc uniquement le pivotement de l'écran 3 et ce, dans les limites de la portion angulaire de l'ouverture oblongue 58.The retaining device 7 thus allows only the pivoting of the screen 3 and this, within the limits of the angular portion of the oblong opening 58.

Lorsque l'utilisateur souhaite amener l'écran 3 dans sa position de fermeture illustrée sur la figure 1, il le fait pivoter vers le bas et ce jusqu'à ce que la dent d'encliquetage 64 vienne au contact de l'ergot 66.When the user wishes to bring the screen 3 into its closed position illustrated on the figure 1 it pivots it downwards until the detent tooth 64 comes into contact with the lug 66.

A ce moment là, il doit maintenir l'écran 3 plus fermement et exercer un effort suffisant pour que la rampe 64A puisse glisser sur l'ergot 66 en déformant légèrement la paroi 62. Dès que la rampe 64A dépasse cet ergot 66, la paroi 62 reprend sa configuration initiale et verrouille ainsi l'écran 3 en rotation, le décrochement 64B venant en butée sur cet ergot 66.At this time, it must maintain the screen 3 more firmly and exert sufficient effort so that the ramp 64A can slide on the lug 66 by slightly deforming the wall 62. As soon as the ramp 64A exceeds this lug 66, the wall 62 resumes its initial configuration and thus locks the screen 3 in rotation, the recess 64B abutting on this lug 66.

Pour ouvrir l'écran 3, l'utilisateur doit tout d'abord introduire son pouce entre la portion arrière concave de la paroi 62 et le renfoncement 68, puis écarter légèrement cette paroi 62 vers l'extérieur du casque 1.To open the screen 3, the user must first introduce his thumb between the concave rear portion of the wall 62 and the recess 68, then slightly move this wall 62 towards the outside of the helmet 1.

Tout en maintenant la paroi 62 écartée, l'utilisateur peut alors faire pivoter l'écran 3 vers le haut, la dent 64 ne venant plus buter sur l'ergot 66.While keeping the wall 62 apart, the user can then rotate the screen 3 upwards, the tooth 64 not coming up against the lug 66.

Lorsque l'utilisateur souhaite désolidariser l'écran 3 de la calotte 2, il lui suffit d'exercer un effort de rotation sur chaque élément d'actionnement 36, qui aille à l'encontre de l'effort de rappel exercé par chaque arête 43 (ayant tendance à plaquer l'élément 36 contre le flasque 24) et soit suffisant pour provoquer une déformation élastique au niveau de cette arête 43 permettant la poursuite de la rotation.When the user wishes to separate the screen 3 from the cap 2, it suffices to exert a rotational force on each actuating element 36, which goes against the restoring force exerted by each edge 43. (tending to press element 36 against the flange 24) and is sufficient to cause elastic deformation at this edge 43 allowing the continuation of rotation.

Dès que les éléments d'actionnement 36 ont pivoté d'un quart de tour et que les lardons 32B sont à nouveau en regard de l'ouverture oblongue 58 correspondante, les organes de liaison 30 sont rappelés par les ressorts 34 vers leur position rétractée où les lardons sont logés dans les renfoncements 50.As soon as the actuating elements 36 have rotated a quarter turn and the gibs 32B are again facing the corresponding oblong opening 58, the connecting members 30 are returned by the springs 34 to their retracted position where the bacon are housed in the recesses 50.

Chaque dispositif de retenue 7 occupe alors sa configuration de désengagement dans laquelle il est désengagé de la platine correspondante 18, de sorte que l'écran 3 puisse être séparé de la calotte 2 par un effort radial de traction provoquant la désolidarisation des échancrures 26 des moyeux 14.Each retaining device 7 then occupies its disengagement configuration in which it is disengaged from the corresponding plate 18, so that the screen 3 can be separated from the cap 2 by a radial tensile force causing the notches 26 of the hubs to disengage. 14.

Selon une variante non représentée, les échancrures situées aux extrémités latérales du casque présentent un contour différent et/ou ne comportent pas de protubérance.According to a variant not shown, the notches at the lateral ends of the helmet have a different contour and / or do not have protrusion.

Selon une autre variante non représentée, la platine du dispositif de retenue et la paroi circulaire du dispositif d'articulation constituent des pièces distinctes.According to another variant not shown, the plate of the retaining device and the circular wall of the articulation device are separate parts.

Selon encore d'autres variantes non représentées :

  • le dispositif d'articulation est différent, par exemple conforme à celui décrit dans la demande de brevet français 2 785 505 ;
  • le casque ne comporte qu'un seul dispositif de retenue sur l'un de ses côtés; et/ou
  • l'élément d'actionnement présente un contour différent et/ou le passage de l'organe de liaison en configuration d'engagement s'effectue par une rotation dans le sens inverse des aiguilles d'une montre.
According to still other variants not shown:
  • the articulation device is different, for example in accordance with that described in the French patent application 2,785,505 ;
  • the helmet has only one restraint on one of its sides; and or
  • the actuating element has a different contour and / or the passage of the connecting member in the engagement configuration is effected by a rotation in the opposite direction of clockwise.

Claims (16)

Casque comportant une calotte (2) pourvue d'une ouverture, un écran (3), des moyens de montage réversible (5, 7) dudit écran (3) sur ladite calotte (2) comportant de chaque côté dudit casque un dispositif d'articulation (5) entre ladite calotte (2) et une extrémité latérale correspondante dudit écran (3) de sorte qu'il soit apte à pivoter par rapport à ladite calotte (2), selon un axe de rotation (XX), entre une position de fermeture dans laquelle ledit écran (3) recouvre totalement ladite ouverture et une position d'ouverture maximale dans laquelle ledit écran (3) est au moins partiellement désengagé de ladite ouverture
caractérisé en ce que lesdits moyens de montage réversible comportent en outre sur au moins un côté dudit casque, un dispositif de retenue (7) comportant une platine (18) fixée sur la face externe de ladite calotte (2) et munie d'une ouverture oblongue en arc de cercle (58) centrée sur ledit axe de rotation (XX), et un organe de liaison (30) monté mobile en rotation sur ledit écran (3) selon un axe (YY) parallèle audit axe de rotation (XX), ledit dispositif de retenue (7) étant apte à occuper une configuration d'engagement dans laquelle ledit organe de liaison (30) est solidaire de ladite platine (18) et traverse de part en part ladite ouverture oblongue (58) de sorte que ledit organe de liaison (30) parcourt ladite ouverture oblongue (58) lors du pivotement dudit écran (3) vis-à-vis de ladite calotte (2), et une configuration de désengagement dans laquelle ledit organe de liaison (30) est désengagé de ladite platine (18).Helmet comprising a cap (2) provided with an opening, a screen (3), reversible mounting means (5, 7) of said screen (3) on said cap (2) comprising on each side of said helmet a device for articulation (5) between said cap (2) and a corresponding lateral end of said screen (3) so that it is pivotable relative to said cap (2), according to an axis of rotation (XX), between a position in which said screen (3) completely covers said opening and a maximum open position in which said screen (3) is at least partially disengaged from said opening
characterized in that said reversible mounting means further comprise on at least one side of said helmet, a retaining device (7) comprising a plate (18) fixed on the outer face of said cap (2) and provided with an opening oblong in an arc (58) centered on said axis of rotation (XX), and a connecting member (30) rotatably mounted on said screen (3) along an axis (YY) parallel to said axis of rotation (XX) said holding device (7) being adapted to occupy an engagement configuration in which said connecting member (30) is integral with said plate (18) and passes right through said oblong opening (58) so that said connecting member (30) traverses said oblong opening (58) during pivoting of said screen (3) vis-à-vis said cap (2), and a disengagement configuration in which said connecting member (30) is disengaged from said platen (18). Casque selon la revendication 1, caractérisé en ce que ledit organe de liaison (30) comporte à son extrémité libre située du côté interne dudit écran (3), un lardon (32B) orienté transversalement audit axe de rotation (XX) et apte dans ladite configuration d'engagement, à coopérer en butée avec une surface (59A) de ladite platine (18), située sur le pourtour interne de la dite ouverture oblongue (58), pour rendre solidaire ledit organe de liaison (30) et ladite platine (18).Helmet according to claim 1, characterized in that said connecting member (30) comprises at its free end located on the inner side of said screen (3), a gib (32B) oriented transversely to said axis of rotation (XX) and fit in said engagement configuration, cooperating in abutment with a surface (59A) of said plate (18), located on the inner periphery of said oblong opening (58), to make said connecting member (30) and said plate ( 18). Casque selon la revendication 2, caractérisé en ce que ladite surface est formée par le fond (59A) d'un lamage (59) situé sur le pourtour interne de ladite ouverture oblongue (58).Helmet according to claim 2, characterized in that said surface is formed by the bottom (59A) of a countersink (59) located on the inner periphery of said oblong opening (58). Casque selon l'une des revendications 1 à 3, caractérisé en ce que ledit organe de liaison (30) est monté mobile en translation et en rotation sur ledit écran (3) selon ledit axe parallèle (YY) par l'intermédiaire d'une tige cylindrique (32A) traversant une ouverture circulaire (46) dudit écran (3).Helmet according to one of claims 1 to 3, characterized in that said connecting member (30) is movably mounted in translation and rotation on said screen (3) along said parallel axis (YY) via a cylindrical rod (32A) passing through a circular opening (46) of said screen (3). Casque selon l'une des revendications 1 à 4, caractérisé en ce que la face interne de l'écran (3) comporte un renfoncement (50) apte à recevoir ledit lardon (32B) de l'organe de liaison (30) lorsque ledit dispositif de retenue (7) occupe ladite configuration de désengagement.Helmet according to one of claims 1 to 4, characterized in that the inner face of the screen (3) comprises a recess (50) adapted to receive said bacon (32B) of the connecting member (30) when said retainer (7) occupies said disengagement configuration. Casque selon la revendication 5, caractérisé en ce que ledit organe de liaison (30) comporte du côté externe dudit écran (3) et à l'opposée dudit lardon (32B), un élément d'actionnement (36) manoeuvrable manuellement pour faire occuper audit organe de liaison (30) une position enfoncée dans laquelle ledit lardon (32B) saille de ladite ouverture oblongue (58) de ladite platine (18) et où ledit organe de liaison (30) est entrainable en rotation via ledit élément d'actionnement (36) pour que ledit dispositif de retenue (7) vienne occuper ladite configuration d'engagement, et une position rétractée dans laquelle ledit lardon (32B) est reçu dans ledit renfoncement (50) dudit écran et où ledit dispositif de retenue (7) occupe ladite configuration de dégagement.Helmet according to claim 5, characterized in that said connecting member (30) comprises the outer side of said screen (3) and the opposite of said bacon (32B), an actuating element (36) manually operable to occupy to said link member (30) a depressed position in which said gib (32B) projects from said oblong opening (58) of said turntable (18) and wherein said link member (30) is rotatable via said operating member (36) for said retainer (7) to occupy said engagement configuration, and a retracted position wherein said gibber (32B) is received in said recess (50) of said screen and wherein said retainer (7) occupies said clearance configuration. Casque selon la revendication 6, caractérisé en ce que ledit dispositif de retenue (7) comporte un ressort de rappel de l'organe de liaison (30) dans ladite position rétractée.Helmet according to claim 6, characterized in that said retaining device (7) comprises a return spring of the connecting member (30) in said retracted position. Casque selon l'une des revendications 1 à 7, caractérisé en ce que chaque dit dispositif d'articulation (5) comporte un moyeu (14) fixé sur ladite calotte (2) et apte à coopérer avec une portion en arc de cercle (28A) du contour d'une échancrure (26) située à l'extrémité latérale correspondante dudit écran (7).Helmet according to one of claims 1 to 7, characterized in that each said articulation device (5) comprises a hub (14) fixed on said cap (2) and adapted to cooperate with an arcuate portion of circle (28A) of the contour of a notch (26) located at the corresponding lateral end of said screen (7). Casque selon la revendication 8, caractérisé en ce que ledit moyeu (14) est pris en sandwich par deux flasques circulaires interne (18A) et externe (24).Helmet according to claim 8, characterized in that said hub (14) is sandwiched by two inner (18A) and outer (24) circular flanges. Casque selon la revendication 9, caractérisé en ce que le contour dudit élément d'actionnement (36) comporte une portion en arc de cercle (40B) apte à venir épouser la tranche dudit flasque externe (24) après la rotation dudit organe de liaison (30) dans un premier sens de rotation, de sorte que ledit dispositif de retenue (7) occupe ladite configuration d'engagement.Helmet according to claim 9, characterized in that the contour of said actuating element (36) comprises a portion in an arc (40B) adapted to fit the edge of said outer flange (24) after the rotation of said connecting member ( 30) in a first direction of rotation, so that said retainer (7) occupies said engagement configuration. Casque selon la revendication 10, caractérisé en ce que ledit élément d'actionnement (36) comporte une arête d'encliquetage (43) déformable élastiquement au cours de la rotation dudit organe de liaison (30) dans ledit premier sens de rotation.Helmet according to claim 10, characterized in that said actuating element (36) comprises a ratchet edge (43) elastically deformable during the rotation of said connecting member (30) in said first direction of rotation. Casque selon l'une des revendications 10 ou 11, caractérisé en ce que ledit élément d'actionnement (36) comporte une arête d'extrémité (42) pour empêcher la rotation dudit organe de liaison (30) dans le sens contraire audit un premier sens de rotation, lorsque ledit organe de liaison occupe ladite position enfoncée.Helmet according to one of claims 10 or 11, characterized in that said actuating element (36) has an end edge (42) to prevent the rotation of said connecting member (30) in the opposite direction to said first direction of rotation, when said connecting member occupies said depressed position. Casque selon l'une des revendications 1 à 12, caractérisé en ce que ladite platine (18) est montée dans un renfoncement correspondant que comporte ladite calotte (2) de chaque côté dudit casque.Helmet according to one of claims 1 to 12, characterized in that said plate (18) is mounted in a corresponding recess that comprises said cap (2) on each side of said helmet. Casque selon l'une des revendications 1 à 13, caractérisé en ce qu'il comporte des moyens de fixation ajustable (19, 54, 22, 56) de ladite platine (18) sur ladite calotte (2).Helmet according to one of claims 1 to 13, characterized in that it comprises adjustable fixing means (19, 54, 22, 56) of said plate (18) on said cap (2). Casque selon la revendication 14, caractérisé en ce que lesdits moyens de fixation ajustable comportent deux vis (22, 56) prévues pour coopérer avec deux perçages respectifs (19, 54) dont le diamètre est supérieur à celui desdites vis (22, 56).Helmet according to claim 14, characterized in that said adjustable fixing means comprise two screws (22, 56) provided to cooperate with two respective holes (19, 54) whose diameter is greater than that of said screws (22, 56). Casque selon l'une des revendications 1 à 15, caractérisé en ce que lesdits moyens de montage réversible comportent deux dits dispositifs de retenue (7) disposés de chaque côté dudit casque.Helmet according to one of claims 1 to 15, characterized in that said reversible mounting means comprise two said retainers (7) disposed on each side of said helmet.
EP20100190440 2009-11-10 2010-11-09 Helmet with pivoting visor Active EP2319338B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0957923A FR2952277B1 (en) 2009-11-10 2009-11-10 SWIVEL SCREEN HELMET

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EP2319338A1 true EP2319338A1 (en) 2011-05-11
EP2319338B1 EP2319338B1 (en) 2012-07-04

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FR (1) FR2952277B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021128935A1 (en) * 2019-12-25 2021-07-01 江门市鹏程头盔有限公司 Motorcycle helmet lens mounting structure

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0481860A1 (en) * 1990-10-16 1992-04-22 Sextant Avionique Device for locking a visor and helmet equiped with at least one such device
EP0848915A2 (en) * 1996-12-17 1998-06-24 SHOEI KAKO Co., LTD. Mechanism for attaching a rotating plate in a helmet
FR2785505A1 (en) 1998-11-06 2000-05-12 Shark Sa Visor for motorcycle safety helmet has pivot with lug fixed to helmet to retain visor under control of release button
JP2004197298A (en) * 2004-04-05 2004-07-15 Yamaha Motor Co Ltd Shield-fitting structure of helmet
WO2007144938A1 (en) * 2006-06-13 2007-12-21 Ogk Kabuto Co., Ltd. Shield installation structure for helmet
EP1935267A1 (en) * 2006-12-14 2008-06-25 Arai Helmet Ltd Shield locking mechanism for helmet
US20090100576A1 (en) * 2007-10-18 2009-04-23 Hjc Co., Ltd. Apparatus for opening/closing chin protection bar of safety helmet and safety helmet having the same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0481860A1 (en) * 1990-10-16 1992-04-22 Sextant Avionique Device for locking a visor and helmet equiped with at least one such device
EP0848915A2 (en) * 1996-12-17 1998-06-24 SHOEI KAKO Co., LTD. Mechanism for attaching a rotating plate in a helmet
FR2785505A1 (en) 1998-11-06 2000-05-12 Shark Sa Visor for motorcycle safety helmet has pivot with lug fixed to helmet to retain visor under control of release button
JP2004197298A (en) * 2004-04-05 2004-07-15 Yamaha Motor Co Ltd Shield-fitting structure of helmet
WO2007144938A1 (en) * 2006-06-13 2007-12-21 Ogk Kabuto Co., Ltd. Shield installation structure for helmet
EP1935267A1 (en) * 2006-12-14 2008-06-25 Arai Helmet Ltd Shield locking mechanism for helmet
US20090100576A1 (en) * 2007-10-18 2009-04-23 Hjc Co., Ltd. Apparatus for opening/closing chin protection bar of safety helmet and safety helmet having the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021128935A1 (en) * 2019-12-25 2021-07-01 江门市鹏程头盔有限公司 Motorcycle helmet lens mounting structure

Also Published As

Publication number Publication date
EP2319338B1 (en) 2012-07-04
FR2952277A1 (en) 2011-05-13
FR2952277B1 (en) 2011-12-09

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