EP0433182B1 - Full face helmet, in particular for motorcyclist - Google Patents

Full face helmet, in particular for motorcyclist Download PDF

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Publication number
EP0433182B1
EP0433182B1 EP90420456A EP90420456A EP0433182B1 EP 0433182 B1 EP0433182 B1 EP 0433182B1 EP 90420456 A EP90420456 A EP 90420456A EP 90420456 A EP90420456 A EP 90420456A EP 0433182 B1 EP0433182 B1 EP 0433182B1
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EP
European Patent Office
Prior art keywords
helmet
shell
shells
full face
face type
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 - Lifetime
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EP90420456A
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German (de)
French (fr)
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EP0433182A1 (en
Inventor
Jean-Paul Noyerie
Gilles Basson
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Gallet SA
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Gallet SA
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Publication date
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Priority to AT90420456T priority Critical patent/ATE99891T1/en
Publication of EP0433182A1 publication Critical patent/EP0433182A1/en
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Publication of EP0433182B1 publication Critical patent/EP0433182B1/en
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    • AHUMAN NECESSITIES
    • A42HEADWEAR
    • A42BHATS; HEAD COVERINGS
    • A42B3/00Helmets; Helmet covers ; Other protective head coverings
    • A42B3/32Collapsible helmets; Helmets made of separable parts ; Helmets with movable parts, e.g. adjustable
    • A42B3/326Helmets with movable or separable chin or jaw guard

Definitions

  • the present invention relates to a helmet of the "integral" type, in particular for motorcyclists and, even more particularly, for police and motorized gendarmerie personnel.
  • a helmet of the "integral" type comprises a main shell of substantially spherical shape, to which is connected a protective part projecting forward, which takes place around the chin of the user when the helmet is worn. This part which is designated by “chin rest”, is generally secured to the helmet shell.
  • a fixed chin strap In general, a fixed chin strap must be designed to allow the helmet to be put on the head of the user, and it cannot by itself hold the helmet, so that a chin strap remains necessary .
  • the presence of a fixed chin guard prevents the user from having the face entirely uncovered in certain circumstances, in particular to be able to speak, for example to verbalize.
  • Document GB-A-2087712 describes a helmet of the "integral" type, in which the chin guard is partially constituted by two movable shells, symmetrical to one another, pivotally mounted on the lateral regions, respectively right and left, of the helmet shell. These two shells are thus movable between a first position, in which their respective front ends provided with locking means meet substantially in the longitudinal median plane of the helmet, and a second position, which can be called an open position, wherein a large free space is provided between the respective front ends of said shells.
  • the chin guard of the helmet comprises a fixed part, located above the two pivoting shells.
  • the opening of the two shells can facilitate the fitting of the helmet on the head of the user, as well as its removal, but the complete release of the face of the user is not possible.
  • the opening of the shells by pivoting does not ensure their retraction, and these shells pivoted forward or laterally constitute protruding parts which prove to be troublesome and even dangerous.
  • the document FR-A-2525441 describes an integral helmet provided on its lower edge with a collar formed of two segments which can be moved relative to each other by a relative movement of sliding.
  • the collar can thus be widened without opening, to facilitate the passage of the head of the user, when fitting or removing the helmet.
  • the front segment of the collar always remains present in front of the user's chin, so that, here too, the user's face cannot be entirely released, whatever the position of this segment.
  • Document DE-A-2853260 describes a helmet of the "integral" type, with a chin guard formed by a single element mounted to pivot on one side of the shell of the helmet.
  • This chinrest opens by a pivoting movement towards the front, without the possibility of retraction, the open chinrest also forming here a large protruding part which prohibits any use of the helmet in a position releasing the face of the user.
  • the aim of the present invention is to provide a helmet of the "integral" type, the parts of which, constituting the chin strap, can not only be moved apart to facilitate the fitting and removal of the helmet but can be, moreover, erased so as to allow the complete release of the face of the user and the possible use of the helmet in the release position of the face, without these parts constituting a discomfort.
  • the subject of the invention is essentially a helmet of the "integral" type, in particular for motorcyclists, of the kind indicated in the preamble of claim 1, in which the two movable shells are movable between an advanced position, in which they alone constitute the chin guard of the helmet, and a retracted position, in which these two shells are retracted and take place in the lateral regions of the shell of the helmet, so as to completely release the face of the user.
  • the two right and left shells combined together form a closed chin guard providing the desired protection, and which can also carry out the retention of the helmet itself, without the need for a chin strap.
  • the two shells are sufficiently retracted so that the face of the user is completely free, in particular so that the latter can speak to an interlocutor.
  • This remote position of the shells also allows the helmet to be easily put in and out. If necessary, this helmet can be used with its two shells in the retracted position, subject to providing a chin strap, the helmet thus used can still offer sufficient security.
  • each lateral slide of the shell is advantageously shaped as a double slide, cooperating with two pairs of guide pins provided towards the rear end of the corresponding shell.
  • each double lateral slide is formed by an elongated recess of the shell and by a corresponding insert.
  • each slide comprises at the front an interruption such that, when the corresponding shell occupies its advanced position, the pair of pins located furthest forward can escape said slide and be located more inside, while the other pair of pins, located behind the previous one, remains permanently engaged in the double slide.
  • the two shells can describe in addition to their sliding movement along the slides, a limited pivoting movement which brings them into their final closed position.
  • each shell further comprises, in its posterior region, a stop protruding inwards which, when the shell occupies its advanced position, cooperates with a complementary housing formed towards the front of the slide. corresponding.
  • the shells are kept in the closed position of the chin guard, and in the event of an impact exerted on this chin guard, the shock is transmitted by the stops to the shell of the helmet.
  • the stops are first released from their respective housings by the slight pivoting of the shells.
  • the stop of each shell is a removable stop from the outside, the removal of which allows separation of the shell, which constitutes a particularly useful arrangement for the rapid removal of the helmet in the event of an accident.
  • the removable stop can be made as a kind of screw, that a small rotation allows to separate from the corresponding groove.
  • each shell is extended towards the rear by a relatively flexible lateral cover, which conceals the corresponding slide, in particular when the shell occupies its advanced position, which contributes to sealing and aesthetics.
  • the side cover is advantageously shaped like a strip, and it passes through a slot in the shell of the helmet, so that it retracts under this shell when the shell is moved back.
  • the two shells are each linked to the respective lateral regions of the shell by means of two articulated links, determining a deformable quadrilateral which makes it possible to move each shell between its advanced position and its retracted position .
  • the helmet object of the invention also preferably comprises locking means provided to ensure a connection between the respective front ends of the two movable shells, when the latter occupy their advanced position, to ensure complete closure of the chin guard with a firm mechanical connection between the two shells close to each other.
  • the locking means comprise, towards the front end of each shell, guide means for a locking pin movable in sliding and rotation, and provided at its free end with a lateral lug of lock provided for being inserted and retained in a corresponding housing provided at the front end of the other shell.
  • each closing button comprises a mounted part sliding parallel to the locking axis and axially linked to the latter, and another movable part perpendicular to the previous one, the displacement of this other part being accompanied by a rotation of the locking axis, while a spring tends to retract the locking pin.
  • the front ends of the two movable shells also have corresponding raised and hollow parts, in particular with conical shapes, ensuring precise positioning of one shell relative to the other when the chinrest is closed.
  • One thus obtains, on approaching the fully closed position, a "centering" of the shells which then makes it possible to proceed easily with locking.
  • the helmet of the “integral” type shown as a whole in FIGS. 1 to 3, comprises a rigid main shell 1 and two symmetrical shells 2 and 3, linked to the lateral regions of the shell 1 and movable, each between an advanced position and a remote position.
  • the two shells 2 and 3 meet at their front ends along a line 4 situated in the longitudinal median plane of the helmet, and thus produce a closed chinrest, as shown in FIGS. 1 and 2.
  • a pivoting translucent screen 5, provided with an operating lug 6, can then close the existing opening between the shell 1 and the two joined shells 2 and 3.
  • the two shells 2 and 3 are retracted and take place respectively in the right and left lateral regions of the shell 1 of the helmet.
  • a large free space is thus provided between the front ends of the two shells 2 and 3.
  • the pivoting screen 5 can be raised by guiding along lateral grooves in an arc 7 (see FIG. 4), the face of the user can be fully cleared.
  • each shell and the shell 1 is achievable by means of a substantially horizontal double slide, provided on the corresponding side of the helmet.
  • the double slide is here formed by an elongated recess 8 of the shell 1 and by a corresponding insert 9.
  • the shell 2 Towards its rear end, and on the inside, the shell 2 comprises two pairs of guide pins, respectively 10 and 11, designed to cooperate with the double slide produced between the recess 8 and the insert 9.
  • This slide comprises at the 'before an interruption such that, when the shell 2 occupies its advanced position (see Figure 5), the pair of lugs 10 located furthest forward can escape from said slide and be located further inside.
  • the rear region of the shell 2 also carries a removable stop 12, projecting inwards, which when the shell occupies its advanced position occupies a complementary housing 13 formed towards the front of the slide, as shown in FIG. 5.
  • the removable stop 12 can be made as a kind of screw that a slight rotation, for example of a quarter turn, allows the shell 2 to be entirely removed, thereby releasing the latter. Furthermore, this stop 12 can ensure the retention, on the shell 2, of a side cover 14 shaped as a relatively flexible strip, extending the shell towards the rear.
  • the side cover 14 serves to conceal the double slide, in particular when the shell 2 occupies its advanced position. The rear part of the side cover 14 is introduced through a slot 15 made in the shell 1. When the shell 2 is moved to its retracted position, the side cover 14 slides in the slot 15 and thus retracts under the shell 1 - see figure 6.
  • the left shell 3 has a symmetrical structure of the right shell 2, and it is movable along a double slide provided on the left side of the helmet, which is the symmetrical, with respect to the longitudinal median plane P of the helmet , of the double slide provided for the right shell 2.
  • manual control locking means generally designated by 16, and shown more particularly in Figures 7 to 10, provide a mechanical connection between the respective front ends of these two shells 2 and 3 , joined along line 4.
  • the locking means 16 are produced in a similar manner on each shell, and they can be described with reference for example to Figures 7 and 8 which show the front part of the left shell 3, seen from the inside.
  • the locking means 16 comprise a guide block 17, fixed to the front end of the shell 3 considered.
  • Block 17 has a passage which is used for sliding guidance, in a direction substantially horizontal, with a locking pin 18 provided at its free end with a lateral locking pin 19.
  • the same guide block 17 also includes a housing 20, with an entry in the form of a keyhole, designed to receive the locking pin 18 linked to the other shell 2, and more particularly the locking pin 19 of this axis 18 immunity see also FIG. 9.
  • the part of the locking pin 18 which is distant from the lug 19 is linked to a closing button, formed of three parts designated respectively 21, 22 and 23.
  • the first part 21 is slidably mounted in horizontal direction, parallel to the locking pin 18, by means of two parallel guide axes 24, substantially horizontal.
  • the locking pin 18 is axially linked to this first part 21, and a compression spring 25 mounted around said axis 18 tends to cause the assembly formed by this axis 18 and by the closing button to move back, relative to the guide block. 17.
  • Figure 7 shows this assembly in the fully retracted position, the locking pin 18 then being retracted.
  • the second part 22 of the closing button is integral with the first part 21, which it extends towards the rear, the two parts 21 and 22 being able to be assembled by snap-fastening.
  • the third part 23 is guided in sliding between the two parts 21 and 22, in a substantially vertical direction indicated by an arrow F in FIG. 10.
  • This third part 23 comprises a housing 26 which cooperates with a lateral finger 27 of the axis of locking 18, as also shown in FIG. 10, so that the sliding of said part 23 is accompanied by a rotation of the locking pin 18.
  • the closing button formed by the three parts 21, 22 and 23 makes it possible to control a sliding of the locking pin 18, and a limited rotation of this pin 18, this for each shell 2 or 3. In this way when the two shells 2 and 3 meet, it is possible to manually control by the part 23 the introduction of each locking pin 18 into the corresponding housing 20 of the other shell, and the attachment of the locking lug 19 in this housing, to obtain the coupled position shown in figure 9.
  • conical portions 28 and corresponding recesses 29, formed at the respective front ends of the shells 2 and 3, ensure precise positioning of one shell relative to the other.
  • the housings 20 may also each comprise a helical ramp (not shown) with which the corresponding lug 19 cooperates.
  • each shell 2 or 3 has on its upper edge a projecting portion of triangular shape 30, which in the closed position of the chin rest takes place in the exact extension of the edge of the shell 1 , so as to ensure a good seal at the junction of the shell 1 and the shells 2 and 3.
  • elastic return means are provided, for automatically moving the two shells 2 and 3 from their advanced position to their retracted position, when the chinrest is opened.
  • the return means consist, for example, for each shell 2 or 3, of an elastic link 37 stretched between a point of this shell, for example at the stop 12, and a fixed point 38 located on the shell 1 of the helmet, the elastic link 37 which can pass through the slot 15 to pass under the shell 1.
  • These return means can also be produced in any equivalent form, for example with a spiral spring of oblong or flat section, therefore of small size, of the "magazine spring" type ".
  • seals may also be fixed along the upper edges of the two shells 1 and 2. It should be noted that, in the case of a pivoting screen 5 provided for removable, the retraction of the two shells 2 and 3 considerably facilitates the disassembly and reassembly of the screen 5.
  • FIGS. 11 and 12 show a variant in which the two symmetrical shells 2 and 3 are each linked to the lateral regions of the shell 1 of the helmet by means of articulated links 31 and 32, as illustrated in the drawing for the right shell 2.
  • the first link 31, located further forward, is articulated by an axis 33 to the shell 1, and is articulated by another axis 34 to the shell 2.
  • the second link 32, located further back, is articulated by an axis 35 to the shell 1, and is articulated by a last axis 36 to the shell 2.
  • a deformable quadrilateral structure is thus obtained, making it possible to move the shell 2 between an advanced position (FIG. 11) and a retracted position (FIG. 12), passing through intermediate positions such as that indicated in dashed lines in FIG. 11.
  • the two shells 2 and 3 meet along a line 4 located in the longitudinal median plane P of the helmet, and these two shells can then be rigidly joined to one another by locking means, here not shown but achievable as described above.
  • the two shells 2 and 3 are brought back against the shell 1 of the helmet, and they thus completely release the face of the user.
  • the "full-face" type helmet according to the present invention is more particularly usable as a motorcycle helmet intended for police and gendarmerie personnel.
  • Another possibility consists in providing a motorization of the movement of the two shells between their advanced position and their retracted position; the motor means, which in this case ensure the opening and closing of the chin strap of the helmet, can be remotely controlled by a wireless link such as radio link, for example from a small transmitter box placed on the handlebars of the motorcycle .

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  • Helmets And Other Head Coverings (AREA)
  • Dry Shavers And Clippers (AREA)

Abstract

The chin piece of the helmet consists of two mutually symmetrical movable shell parts (2, 3), linked, respectively, to the lateral right and left regions of the crown (shell) (1) of the helmet, for example by means of lateral slides. The two shell pieces (2, 3) can be moved between an advanced position, in which their front ends join up (at 4) in the longitudinal median plane of the helmet, and a retracted position, in which these two shell parts (2, 3) are moved back and are located in the lateral regions of the crown (shell) (1). In the advanced position, the two shell parts (2, 3) are joined by locking means (16). The wearer's face is entirely uncovered when the shell parts occupy their retracted position. <??>This helmet is intended more particularly for members of the police force and constabulary. <IMAGE>

Description

La présente invention concerne un casque de type "intégral", notamment pour motocyclistes et, encore plus particulièrement, pour les personnels de police et de gendarmerie motorisée.The present invention relates to a helmet of the "integral" type, in particular for motorcyclists and, even more particularly, for police and motorized gendarmerie personnel.

Un casque de type "intégral" comporte une coque principale de forme sensiblement sphérique, à laquelle se raccorde une partie protectrice faisant saillie vers l'avant, qui prend place autour du menton de l'utilisateur lorsque le casque est porté. Cette partie que l'on désigne par "mentonnière", est généralement solidaire de la coque du casque.A helmet of the "integral" type comprises a main shell of substantially spherical shape, to which is connected a protective part projecting forward, which takes place around the chin of the user when the helmet is worn. This part which is designated by "chin rest", is generally secured to the helmet shell.

D'une façon générale, une mentonnière fixe doit être conçue pour permettre la mise en place du casque sur la tête de l'utilisateur, et elle ne peut assurer par elle-même la rétention du casque, de sorte qu'une jugulaire reste nécessaire. De plus, dans le cas des casques utilisés par les personnels de police et de gendarmerie, la présence d'une mentonnière fixe empêche l'utilisateur d'avoir dans certaines circonstances la face entièrement découverte, notamment pour pouvoir parler, par exemple pour verbaliser.In general, a fixed chin strap must be designed to allow the helmet to be put on the head of the user, and it cannot by itself hold the helmet, so that a chin strap remains necessary . In addition, in the case of helmets used by police and gendarmerie personnel, the presence of a fixed chin guard prevents the user from having the face entirely uncovered in certain circumstances, in particular to be able to speak, for example to verbalize.

Le document GB-A-2087712 décrit un casque de type "intégral", dans lequel la mentonnière est constituée partiellement par deux coquilles mobiles, symétriques l'une de l'autre, montées pivotantes sur les régions latérales, respectivement droite et gauche, de la coque du casque. Ces deux coquilles sont ainsi déplaçables entre une première position, dans laquelle leurs extrémités avant respectives pourvues de moyens de verrouillage se rejoignent sensiblement dans le plan médian longitudinal du casque, et une seconde position, que l'on peut appeler une position d'ouverture, dans laquelle un espace libre important est ménagé entre les extrémités avant respectives desdites coquilles.Document GB-A-2087712 describes a helmet of the "integral" type, in which the chin guard is partially constituted by two movable shells, symmetrical to one another, pivotally mounted on the lateral regions, respectively right and left, of the helmet shell. These two shells are thus movable between a first position, in which their respective front ends provided with locking means meet substantially in the longitudinal median plane of the helmet, and a second position, which can be called an open position, wherein a large free space is provided between the respective front ends of said shells.

Toutefois, la mentonnière du casque selon le document précité comprend une partie fixe, située au-dessus des deux coquilles pivotantes. Ainsi l'ouverture des deux coquilles peut faciliter la mise en place du casque sur la tête de l'utilisateur, ainsi que son enlèvement, mais le dégagement complet de la face de l'utilisateur n'est pas possible. De plus, l'ouverture des coquilles par pivotement n'assure pas leur escamotage, et ces coquilles pivotées vers l'avant ou latéralement constituent des parties saillantes qui s'avèrent gênantes et même dangereuses.However, the chin guard of the helmet according to the aforementioned document comprises a fixed part, located above the two pivoting shells. Thus the opening of the two shells can facilitate the fitting of the helmet on the head of the user, as well as its removal, but the complete release of the face of the user is not possible. In addition, the opening of the shells by pivoting does not ensure their retraction, and these shells pivoted forward or laterally constitute protruding parts which prove to be troublesome and even dangerous.

Le document FR-A-2525441 décrit un casque intégral pourvu sur son bord inférieur d'un collier formé de deux segments qui peuvent être déplacés l'un par rapport à l'autre par un mouvement relatif de coulissement. Le collier peut ainsi être élargi sans s'ouvrir, pour faciliter le passage de la tête de l'utilisateur, lors de la mise en place ou de l'enlèvement du casque. Toutefois, le segment avant du collier reste toujours présent devant le menton de l'utilisateur, si bien que, là aussi, la face de l'utilisateur ne peut être entièrement dégagée, quelle que soit la position de ce segment.The document FR-A-2525441 describes an integral helmet provided on its lower edge with a collar formed of two segments which can be moved relative to each other by a relative movement of sliding. The collar can thus be widened without opening, to facilitate the passage of the head of the user, when fitting or removing the helmet. However, the front segment of the collar always remains present in front of the user's chin, so that, here too, the user's face cannot be entirely released, whatever the position of this segment.

Le document DE-A-2853260 décrit un casque de type "intégral", avec une mentonnière formée par un seul élément monté pivotant sur un côté de la coque du casque. Cette mentonnière s'ouvre par un mouvement de pivotement vers l'avant, sans possibilité d'escamotage, la mentonnière ouverte formant là aussi une partie saillante de grande dimension qui interdit toute utilisation du casque dans une position dégageant la face de l'utilisateur.Document DE-A-2853260 describes a helmet of the "integral" type, with a chin guard formed by a single element mounted to pivot on one side of the shell of the helmet. This chinrest opens by a pivoting movement towards the front, without the possibility of retraction, the open chinrest also forming here a large protruding part which prohibits any use of the helmet in a position releasing the face of the user.

Au vu de cet état de la technique, la présente invention a pour but de fournir un casque de type "intégral" dont les parties, constituant la mentonnière, peuvent être non seulement écartées pour faciliter la mise en place et le retrait du casque mais peuvent être, en outre, effacées de manière à permettre le dégagement complet de la face de l'utilisateur et l'utilisation éventuelle du casque en position de dégagement de la face, sans que ces parties constituent une gêne.In view of this state of the art, the aim of the present invention is to provide a helmet of the "integral" type, the parts of which, constituting the chin strap, can not only be moved apart to facilitate the fitting and removal of the helmet but can be, moreover, erased so as to allow the complete release of the face of the user and the possible use of the helmet in the release position of the face, without these parts constituting a discomfort.

A cet effet, l'invention a essentiellement pour objet un casque de type "intégral", notamment pour motocyclistes, du genre indiqué dans le préambule de la revendication 1, dans lequel les deux coquilles mobiles sont déplaçables entre une position avancée, dans laquelle elles constituent à elles seules la mentonnière du casque, et une position reculée, dans laquelle ces deux coquilles sont escamotées et prennent place dans les régions latérales de la coque du casque, de manière à dégager entièrement la face de l'utilisateur.To this end, the subject of the invention is essentially a helmet of the "integral" type, in particular for motorcyclists, of the kind indicated in the preamble of claim 1, in which the two movable shells are movable between an advanced position, in which they alone constitute the chin guard of the helmet, and a retracted position, in which these two shells are retracted and take place in the lateral regions of the shell of the helmet, so as to completely release the face of the user.

Ainsi, en position avancée, les deux coquilles droite et gauche réunies forment ensemble une mentonnière fermée assurant la protection désirée, et pouvant aussi réaliser elle-même la rétention du casque, sans nécessité d'une jugulaire. En position reculée, les deux coquilles sont suffisamment escamotées pour que la face de l'utilisateur soit entièrement dégagée, notamment pour que celui-ci puisse parler à un interlocuteur. Cette position reculée des coquilles permet aussi la mise en place et le retrait aisés du casque. Le cas échéant, ce casque peut être utilisé avec ses deux coquilles en position reculée, sous réserve de prévoir une jugulaire, le casque ainsi utilisé pouvant encore offrir une sécurité suffisante.Thus, in the advanced position, the two right and left shells combined together form a closed chin guard providing the desired protection, and which can also carry out the retention of the helmet itself, without the need for a chin strap. In the retracted position, the two shells are sufficiently retracted so that the face of the user is completely free, in particular so that the latter can speak to an interlocutor. This remote position of the shells also allows the helmet to be easily put in and out. If necessary, this helmet can be used with its two shells in the retracted position, subject to providing a chin strap, the helmet thus used can still offer sufficient security.

Dans une forme de réalisation préférée de l'invention, les deux coquilles sont montées mobiles, entre leur position avancée et leur position reculée, le long de glissières respectives formées sur les côtés de la coque du casque. Chaque glissière latérale de la coque est avantageusement conformée en double glissière, coopérant avec deux paires d'ergots de guidage prévues vers l'extrémité postérieure de la coquille correspondante. Selon un mode de construction particulier, chaque double glissière latérale est formée par un renfoncement allongé de la coque et par une pièce rapportée correspondante.In a preferred embodiment of the invention, the two shells are mounted movable, between their advanced position and their retracted position, along respective slides formed on the sides of the helmet shell. Each lateral slide of the shell is advantageously shaped as a double slide, cooperating with two pairs of guide pins provided towards the rear end of the corresponding shell. According to a particular construction method, each double lateral slide is formed by an elongated recess of the shell and by a corresponding insert.

Selon une autre caractéristique, chaque glissière comporte à l'avant une interruption telle que, lorsque la coquille correspondante occupe sa position avancée, la paire d'ergots située le plus en avant puisse échapper à ladite glissière et se situer plus à l'intérieur, tandis que l'autre paire d'ergots, située en arrière de la précédente, reste engagée en permanence dans la double glissière. Ainsi, les deux coquilles peuvent décrire outre leur mouvement de coulissement le long des glissières, un mouvement limité de pivotement qui les amène dans leur position finale de fermeture.According to another characteristic, each slide comprises at the front an interruption such that, when the corresponding shell occupies its advanced position, the pair of pins located furthest forward can escape said slide and be located more inside, while the other pair of pins, located behind the previous one, remains permanently engaged in the double slide. Thus, the two shells can describe in addition to their sliding movement along the slides, a limited pivoting movement which brings them into their final closed position.

Cette dernière caractéristique est plus particulièrement intéressante lorsque chaque coquille comporte en outre, dans sa région postérieure, une butée faisant saillie vers l'intérieur qui, lorsque la coquille occupe sa position avancée, coopère avec un logement complémentaire ménagé vers l'avant de la glissière correspondante. Ainsi, les coquilles sont maintenues en position de fermeture de la mentonnière, et en cas de choc exercé sur cette mentonnière, le choc est transmis par les butées à la coque du casque. Lors de l'ouverture de la mentonnière, les butées sont d'abord dégagées de leurs logements respectifs par le léger pivotement des coquilles.This latter characteristic is more particularly advantageous when each shell further comprises, in its posterior region, a stop protruding inwards which, when the shell occupies its advanced position, cooperates with a complementary housing formed towards the front of the slide. corresponding. Thus, the shells are kept in the closed position of the chin guard, and in the event of an impact exerted on this chin guard, the shock is transmitted by the stops to the shell of the helmet. When the chinrest opens, the stops are first released from their respective housings by the slight pivoting of the shells.

De préférence, la butée de chaque coquille est une butée amovible de l'extérieur, dont le retrait autorise une séparation de la coquille, ce qui constitue une disposition particulièrement utile pour le retrait rapide du casque en cas d'accident. La butée amovible peut être réalisée comme un genre de vis, qu'une faible rotation permet de séparer de la rainure correspondante.Preferably, the stop of each shell is a removable stop from the outside, the removal of which allows separation of the shell, which constitutes a particularly useful arrangement for the rapid removal of the helmet in the event of an accident. The removable stop can be made as a kind of screw, that a small rotation allows to separate from the corresponding groove.

Une disposition complémentaire prévoit que chaque coquille est prolongée vers l'arrière par un cache latéral, relativement flexible, qui dissimule la glissière correspondante notamment lorsque la coquille occupe sa position avancée, ce qui contribue à l'étanchéité et à l'esthétique. Le cache latéral est avantageusement conformé comme une bande, et il traverse une fente ménagée dans la coque du casque, de sorte qu'il s'escamote sous cette coque lorsque la coquille est reculée.An additional provision provides that each shell is extended towards the rear by a relatively flexible lateral cover, which conceals the corresponding slide, in particular when the shell occupies its advanced position, which contributes to sealing and aesthetics. The side cover is advantageously shaped like a strip, and it passes through a slot in the shell of the helmet, so that it retracts under this shell when the shell is moved back.

Selon une autre forme de réalisation possible de l'invention, les deux coquilles sont liées chacune aux régions latérales respectives de la coque au moyen de deux biellettes articulées, déterminant un quadrilatère déformable qui permet de déplacer chaque coquille entre sa position avancée et sa position reculée.According to another possible embodiment of the invention, the two shells are each linked to the respective lateral regions of the shell by means of two articulated links, determining a deformable quadrilateral which makes it possible to move each shell between its advanced position and its retracted position .

Le casque objet de l'invention comprend encore, de préférence, des moyens de verrouillage prévus pour assurer une liaison entre les extrémités avant respectives des deux coquilles mobiles, lorsque ces dernières occupent leur position avancée, pour assurer une fermeture complète de la mentonnière avec une liaison mécanique ferme entre les deux coquilles rapprochées l'une de l'autre.The helmet object of the invention also preferably comprises locking means provided to ensure a connection between the respective front ends of the two movable shells, when the latter occupy their advanced position, to ensure complete closure of the chin guard with a firm mechanical connection between the two shells close to each other.

Selon un mode de réalisation préférentiel, les moyens de verrouillage comprennent, vers l'extrémité avant de chaque coquille, des moyens de guidage pour un axe de verrouillage mobile en coulissement et en rotation, et muni à son extrémité libre d'un ergot latéral de verrouillage prévu pour être introduit et retenu dans un logement correspondant ménagé à l'extrémité avant de l'autre coquille. On obtient ainsi un verrouillage qui est double, puisque chaque coquille comporte son propre axe de verrouillage, et qui assure par conséquent une retenue particulièrement efficace des deux coquilles l'une sur l'autre.According to a preferred embodiment, the locking means comprise, towards the front end of each shell, guide means for a locking pin movable in sliding and rotation, and provided at its free end with a lateral lug of lock provided for being inserted and retained in a corresponding housing provided at the front end of the other shell. This gives a double lock, since each shell has its own locking pin, and which therefore ensures a particularly effective retention of the two shells one on the other.

La partie de chaque axe de verrouillage éloignée de l'ergot est liée à un bouton de fermeture conçu pour la commande manuelle du coulissement et du pivotement dudit axe de verrouillage. Ainsi, l'ouverture de la mentonnière nécessite des actions manuelles de sens opposés, sur les deux boutons associés respectivement aux deux axes de verrouillage, ce qui contribue encore à la sécurité en excluant pratiquement tout risque d'ouverture accidentelle de la mentonnière. Dans une forme d'exécution particulière, chaque bouton de fermeture comprend une partie montée coulissante parallèlement à l'axe de verrouillage et liée axialement à ce dernier, et une autre partie mobile perpendiculairement à la précédente, le déplacement de cette autre partie s'accompagnant d'une rotation de l'axe de verrouillage, tandis qu'un ressort tend à rétracter l'axe de verrouillage.The part of each locking pin remote from the lug is linked to a closing button designed for manual control of the sliding and pivoting of said locking pin. Thus, the opening of the chin rest requires manual actions in opposite directions, on the two buttons associated respectively with the two locking pins, which further contributes to safety by practically excluding any risk of accidental opening of the chin rest. In a particular embodiment, each closing button comprises a mounted part sliding parallel to the locking axis and axially linked to the latter, and another movable part perpendicular to the previous one, the displacement of this other part being accompanied by a rotation of the locking axis, while a spring tends to retract the locking pin.

Avantageusement, les extrémités avant des deux coquilles mobiles présentent encore des parties correspondantes en relief et en creux, notamment avec des formes coniques, assurant un positionnement précis d'une coquille relativement à l'autre lors de la fermeture de la mentonnière. On obtient ainsi, à l'approche de la position de fermeture complète, un "centrage" des coquilles qui permet de procéder ensuite aisément au verrouillage.Advantageously, the front ends of the two movable shells also have corresponding raised and hollow parts, in particular with conical shapes, ensuring precise positioning of one shell relative to the other when the chinrest is closed. One thus obtains, on approaching the fully closed position, a "centering" of the shells which then makes it possible to proceed easily with locking.

De toute façon, l'invention sera mieux comprise à l'aide de la description qui suit, en référence au dessin schématique annexé représentant, à titre d'exemples non limitatifs, quelques formes d'exécution de ce casque de type "intégral" :

  • Figure 1 est une vue d'ensemble en perspective d'un casque conforme à la présente invention, avec sa mentonnière fermée ;
  • Figure 2 est une vue de côté du casque de figure 1, les coquilles mobiles étant en position avancée ;
  • Figure 3 est une vue de face du casque des figures 1 et 2, avec ses deux coquilles en position reculée ;
  • Figure 4 est une vue partielle en perspective éclatée du casque selon les figures précédentes, montrant une partie de la coque, l'une des coquilles et une réalisation particulière des moyens de liaison entre les coquilles et la coque ;
  • Figure 5 est une vue en coupe horizontale passant par ces moyens de liaison, avec indication des coquilles en position avancée ;
  • Figure 6 est une vue similaire à figure 5, avec indication d'une coquille en position reculée et suggestion d'une position intermédiaire ;
  • Figure 7 est une vue en perspective de la partie avant d'une coquille, montrant les moyens de verrouillage dans une position ;
  • Figure 8 est une vue similaire à figure 7, illustrant une autre position des moyens de verrouillage ;
  • Figure 9 est une vue en coupe passant par les moyens de verrouillage des deux coquilles, en position accouplée ;
  • Figure 10 est une vue en coupe suivant la ligne X-X de figure 9 ;
  • Figure 11 est une vue partielle en coupe horizontale d'un casque selon l'invention avec sa mentonnière fermée, les moyens de liaison entre les coquilles et la coque étant ici réalisés différemment ;
  • Figure 12 est une vue correspondant à figure 11, mais montrant l'une des coquilles en position reculée.
In any case, the invention will be better understood with the aid of the description which follows, with reference to the appended schematic drawing representing, by way of nonlimiting examples, some embodiments of this helmet of the "integral" type:
  • Figure 1 is an overall perspective view of a helmet according to the present invention, with its chin rest closed;
  • Figure 2 is a side view of the helmet of Figure 1, the movable shells being in the advanced position;
  • Figure 3 is a front view of the helmet of Figures 1 and 2, with its two shells in the retracted position;
  • Figure 4 is a partial exploded perspective view of the helmet according to the preceding figures, showing a part of the shell, one of the shells and a particular embodiment of the connecting means between the shells and the shell;
  • Figure 5 is a horizontal sectional view passing through these connecting means, with indication of the shells in the advanced position;
  • Figure 6 is a view similar to Figure 5, with an indication of a shell in the retracted position and suggestion of an intermediate position;
  • Figure 7 is a perspective view of the front part of a shell, showing the locking means in one position;
  • Figure 8 is a view similar to Figure 7, illustrating another position of the locking means;
  • Figure 9 is a sectional view passing through the locking means of the two shells, in the coupled position;
  • Figure 10 is a sectional view along line XX of Figure 9;
  • Figure 11 is a partial view in horizontal section of a helmet according to the invention with its chin rest closed, the connecting means between the shells and the shell being here made differently;
  • Figure 12 is a view corresponding to Figure 11, but showing one of the shells in the retracted position.

Le casque de type "intégral", montré dans son ensemble aux figures 1 à 3, comprend une coque principale rigide 1 et deux coquilles symétriques 2 et 3, liées aux régions latérales de la coque 1 et mobiles, chacune, entre une position avancée et une position reculée. En position avancée, les deux coquilles 2 et 3 se rejoignent par leurs extrémités avant suivant une ligne 4 située dans le plan médian longitudinal du casque, et réalisent ainsi une mentonnière fermée, comme montré aux figures 1 et 2. Un écran translucide pivotant 5, muni d'une patte de manoeuvre 6, peut obturer alors l'ouverture existante entre la coque 1 et les deux coquilles réunies 2 et 3.The helmet of the “integral” type, shown as a whole in FIGS. 1 to 3, comprises a rigid main shell 1 and two symmetrical shells 2 and 3, linked to the lateral regions of the shell 1 and movable, each between an advanced position and a remote position. In the advanced position, the two shells 2 and 3 meet at their front ends along a line 4 situated in the longitudinal median plane of the helmet, and thus produce a closed chinrest, as shown in FIGS. 1 and 2. A pivoting translucent screen 5, provided with an operating lug 6, can then close the existing opening between the shell 1 and the two joined shells 2 and 3.

Dans leur position reculée, comme le montre la figure 3, les deux coquilles 2 et 3 sont escamotées et prennent place respectivement dans les régions latérales droite et gauche de la coque 1 du casque. Un espace libre important est ainsi ménagé entre les extrémités avant des deux coquilles 2 et 3. L'écran pivotant 5 pouvant être relevé par guidage le long de rainures latérales en arc de cercle 7 (voir figure 4), la face de l'utilisateur peut être entièrement dégagée.In their retracted position, as shown in FIG. 3, the two shells 2 and 3 are retracted and take place respectively in the right and left lateral regions of the shell 1 of the helmet. A large free space is thus provided between the front ends of the two shells 2 and 3. The pivoting screen 5 can be raised by guiding along lateral grooves in an arc 7 (see FIG. 4), the face of the user can be fully cleared.

Comme l'illustrent les figures 4, 5 et 6, en prenant pour exemple la coquille droite 2, la liaison entre chaque coquille et la coque 1 est réalisable au moyen d'une double glissière sensiblement horizontale, prévue sur le côté correspondant du casque. La double glissière est ici formée par un renfoncement allongé 8 de la coque 1 et par une pièce rapportée correspondante 9.As illustrated in Figures 4, 5 and 6, taking for example the right shell 2, the connection between each shell and the shell 1 is achievable by means of a substantially horizontal double slide, provided on the corresponding side of the helmet. The double slide is here formed by an elongated recess 8 of the shell 1 and by a corresponding insert 9.

Vers son extrémité postérieure, et du côté intérieur, la coquille 2 comporte deux paires d'ergots de guidage, respectivement 10 et 11, prévues pour coopérer avec la double glissière réalisée entre le renfoncement 8 et la pièce rapportée 9. Cette glissière comporte à l'avant une interruption telle que, lorsque la coquille 2 occupe sa position avancée (voir figure 5), la paire d'ergots 10 située le plus en avant puisse échapper à ladite glissière et se situer plus à l'intérieur. L'autre paire d'ergots 11, située en arrière de la précédente, reste engagée en permanence dans la double glissière.Towards its rear end, and on the inside, the shell 2 comprises two pairs of guide pins, respectively 10 and 11, designed to cooperate with the double slide produced between the recess 8 and the insert 9. This slide comprises at the 'before an interruption such that, when the shell 2 occupies its advanced position (see Figure 5), the pair of lugs 10 located furthest forward can escape from said slide and be located further inside. The other pair of lugs 11, located behind the previous one, remains permanently engaged in the double slide.

La région postérieure de la coquille 2 porte encore une butée amovible 12, faisant saillie vers l'intérieur, qui lorsque la coquille occupe sa position avancée vient occuper un logement complémentaire 13 ménagé vers l'avant de la glissière, comme le montre la figure 5.The rear region of the shell 2 also carries a removable stop 12, projecting inwards, which when the shell occupies its advanced position occupies a complementary housing 13 formed towards the front of the slide, as shown in FIG. 5.

Pour amener la coquille 2 dans sa position reculée, il convient tout d'abord de faire légèrement pivoter cette coquille 2, comme indiqué par la position en traits mixtes de la figure 6, de manière à dégager la butée 12 de son logement 13 et autoriser ainsi le recul de la coquille. Ensuite, la paire d'ergots 10 s'engageant dans la double glissière, la coquille 2 est déplacée vers l'arrière, en étant parfaitement guidée le long de cette double glissière jusqu'à sa position la plus reculée indiquée en traits continus sur la figure 6.To bring the shell 2 into its retracted position, it is first of all necessary to slightly rotate this shell 2, as indicated by the position in phantom in Figure 6, so as to release the stop 12 from its housing 13 and allow thus the recoil of the shell. Then, the pair of lugs 10 engaging in the double slide, the shell 2 is moved rearward, being perfectly guided along this double slide to its most remote position indicated in solid lines on the figure 6.

La butée amovible 12 est réalisable comme un genre de vis qu'une faible rotation, par exemple d'un quart de tour, permet de retirer entièrement de la coquille 2, libérant ainsi cette dernière. Par ailleurs, cette butée 12 peut assurer la retenue, sur la coquille 2, d'un cache latéral 14 conformé en bande relativement flexible, prolongeant la coquille vers l'arrière. Le cache latéral 14 sert à dissimuler la double glissière, notamment lorsque la coquille 2 occupe sa position avancée. La partie postérieure du cache latéral 14 est introduite au travers d'une fente 15 ménagée dans la coque 1. Lorsque la coquille 2 est déplacée vers sa position reculée, le cache latéral 14 coulisse dans la fente 15 et s'escamote ainsi sous la coque 1 - voir figure 6.The removable stop 12 can be made as a kind of screw that a slight rotation, for example of a quarter turn, allows the shell 2 to be entirely removed, thereby releasing the latter. Furthermore, this stop 12 can ensure the retention, on the shell 2, of a side cover 14 shaped as a relatively flexible strip, extending the shell towards the rear. The side cover 14 serves to conceal the double slide, in particular when the shell 2 occupies its advanced position. The rear part of the side cover 14 is introduced through a slot 15 made in the shell 1. When the shell 2 is moved to its retracted position, the side cover 14 slides in the slot 15 and thus retracts under the shell 1 - see figure 6.

Bien entendu, la coquille gauche 3 possède une structure symétrique de la coquille droite 2, et elle est déplaçable le long d'une double glissière prévue sur le côté gauche du casque, qui est la symétrique, par rapport au plan médian longitudinal P du casque, de la double glissière prévue pour la coquille droite 2.Of course, the left shell 3 has a symmetrical structure of the right shell 2, and it is movable along a double slide provided on the left side of the helmet, which is the symmetrical, with respect to the longitudinal median plane P of the helmet , of the double slide provided for the right shell 2.

Lorsque les deux coquilles 2 et 3 occupent leur position avancée, des moyens de verrouillage à commande manuelle désignés globalement par 16, et représentés plus particulièrement aux figures 7 à 10, assurent une liaison mécanique entre les extrémités avant respectives de ces deux coquilles 2 et 3, réunies suivant la ligne 4. Les moyens de verrouillage 16 sont réalisés de manière similaire sur chaque coquille, et ils peuvent être décrits en se référant par exemple aux figures 7 et 8 qui montrent la partie avant de la coquille gauche 3, vue de l'intérieur.When the two shells 2 and 3 occupy their advanced position, manual control locking means generally designated by 16, and shown more particularly in Figures 7 to 10, provide a mechanical connection between the respective front ends of these two shells 2 and 3 , joined along line 4. The locking means 16 are produced in a similar manner on each shell, and they can be described with reference for example to Figures 7 and 8 which show the front part of the left shell 3, seen from the inside.

Les moyens de verrouillage 16 comprennent un bloc de guidage 17, fixé à l'extrémité avant de la coquille 3 considérée. Le bloc 17 comporte un passage qui sert au guidage en coulissement, selon une direction sensiblement horizontale, d'un axe de verrouillage 18 muni à son extrémité libre d'un ergot latéral de verrouillage 19. Le même bloc de guidage 17 comporte encore un logement 20, avec une entrée en forme de trou de serrure, prévu pour recevoir l'axe de verrouillage 18 lié à l'autre coquille 2, et plus particulièrement l'ergot de verrouillage 19 de cet axe 18 ―voir aussi figure 9.The locking means 16 comprise a guide block 17, fixed to the front end of the shell 3 considered. Block 17 has a passage which is used for sliding guidance, in a direction substantially horizontal, with a locking pin 18 provided at its free end with a lateral locking pin 19. The same guide block 17 also includes a housing 20, with an entry in the form of a keyhole, designed to receive the locking pin 18 linked to the other shell 2, and more particularly the locking pin 19 of this axis 18 aussi see also FIG. 9.

La partie de l'axe de verrouillage 18 qui est éloignée de l'ergot 19 est liée à un bouton de fermeture, formé de trois parties désignées respectivement 21, 22 et 23. La première partie 21 est montée coulissante en direction horizontale, parallèlement à l'axe de verrouillage 18, au moyen de deux axes de guidage parallèles 24, sensiblement horizontaux. L'axe de verrouillage 18 est lié axialement à cette première partie 21, et un ressort de compression 25 monté autour dudit axe 18 tend à faire reculer l'ensemble constitué par cet axe 18 et par le bouton de fermeture, relativement au bloc de guidage 17. La figure 7 montre cet ensemble en position entièrement reculée, l'axe de verrouillage 18 étant alors rétracté.The part of the locking pin 18 which is distant from the lug 19 is linked to a closing button, formed of three parts designated respectively 21, 22 and 23. The first part 21 is slidably mounted in horizontal direction, parallel to the locking pin 18, by means of two parallel guide axes 24, substantially horizontal. The locking pin 18 is axially linked to this first part 21, and a compression spring 25 mounted around said axis 18 tends to cause the assembly formed by this axis 18 and by the closing button to move back, relative to the guide block. 17. Figure 7 shows this assembly in the fully retracted position, the locking pin 18 then being retracted.

La deuxième partie 22 du bouton de fermeture est solidaire de la première partie 21, qu'elle prolonge vers l'arrière, les deux parties 21 et 22 pouvant être assemblées par encliquetage. La troisième partie 23 est guidée en coulissement entre les deux parties 21 et 22, selon une direction sensiblement verticale indiquée par une flèche F à la figure 10. Cette troisième partie 23 comporte un logement 26 qui coopère avec un doigt latéral 27 de l'axe de verrouillage 18, comme le montre également la figure 10, de telle sorte que le coulissement de ladite partie 23 soit accompagné par une rotation de l'axe de verrouillage 18.The second part 22 of the closing button is integral with the first part 21, which it extends towards the rear, the two parts 21 and 22 being able to be assembled by snap-fastening. The third part 23 is guided in sliding between the two parts 21 and 22, in a substantially vertical direction indicated by an arrow F in FIG. 10. This third part 23 comprises a housing 26 which cooperates with a lateral finger 27 of the axis of locking 18, as also shown in FIG. 10, so that the sliding of said part 23 is accompanied by a rotation of the locking pin 18.

Ainsi, le bouton de fermeture formé des trois parties 21, 22 et 23 permet de commander un coulissement de l'axe de verrouillage 18, et une rotation limitée de cet axe 18, ceci pour chaque coquille 2 ou 3. De cette manière lorsque les deux coquilles 2 et 3 se rejoignent, il est possible de commander manuellement par la partie 23 l'introduction de chaque axe de verrouillage 18 dans le logement correspondant 20 de l'autre coquille, et l'accrochage de l'ergot de verrouillage 19 dans ce logement, pour obtenir la position accouplée montrée à la figure 9.Thus, the closing button formed by the three parts 21, 22 and 23 makes it possible to control a sliding of the locking pin 18, and a limited rotation of this pin 18, this for each shell 2 or 3. In this way when the two shells 2 and 3 meet, it is possible to manually control by the part 23 the introduction of each locking pin 18 into the corresponding housing 20 of the other shell, and the attachment of the locking lug 19 in this housing, to obtain the coupled position shown in figure 9.

Lors de la fermeture de la mentonnière, et avant verrouillage, des parties coniques 28 et des évidements correspondants 29, formés aux extrémités avant respectives des coquilles 2 et 3, assurent un positionnement précis d'une coquille relativement à l'autre.When closing the chin guard, and before locking, conical portions 28 and corresponding recesses 29, formed at the respective front ends of the shells 2 and 3, ensure precise positioning of one shell relative to the other.

Pour désaccoupler les deux coquilles 2 et 3 et permettre leur escamotage, l'utilisateur actionne simultanément les parties 23 des moyens de verrouillage 16, de manière à dégager chaque ergot 19 du logement 20 correspondant. Il est à noter que cette opération demande des actions de sens opposés sur les deux parties 23, ce qui exclut pratiquement tout risque d'ouverture accidentelle de la mentonnière, même en cas de choc ou de glissement contre un obstacle.To decouple the two shells 2 and 3 and allow their retraction, the user simultaneously actuates the parts 23 of the locking means 16, so as to release each lug 19 from the corresponding housing 20. It should be noted that this operation requires actions of opposite directions on the two parts 23, which practically excludes any risk of accidental opening of the chin rest, even in the event of an impact or sliding against an obstacle.

Pour que le verrouillage soit assuré avec un certain serrage des extrémités des coquilles 2 et 3 l'une contre l'autre, les logements 20 peuvent encore comporter chacun une rampe hélicoïdale (non représentée) avec laquelle coopère l'ergot 19 correspondant.So that the locking is ensured with a certain tightening of the ends of the shells 2 and 3 against each other, the housings 20 may also each comprise a helical ramp (not shown) with which the corresponding lug 19 cooperates.

En se référant de nouveau aux figures 1 à 4, chaque coquille 2 ou 3 comporte sur son bord supérieur une partie en saillie de forme triangulaire 30, qui dans la position fermée de la mentonnière prend place dans le prolongement exact du bord de la coque 1, de manière à assurer une bonne étanchéité à la jonction de la coque 1 et des coquilles 2 et 3.Referring again to Figures 1 to 4, each shell 2 or 3 has on its upper edge a projecting portion of triangular shape 30, which in the closed position of the chin rest takes place in the exact extension of the edge of the shell 1 , so as to ensure a good seal at the junction of the shell 1 and the shells 2 and 3.

Selon une disposition complémentaire illustrée par les figures 5 et 6, des moyens de rappel élastiques sont prévus, pour déplacer automatiquement les deux coquilles 2 et 3 depuis leur position avancée vers leur position reculée, lors de l'ouverture de la mentonnière. Les moyens de rappel consistent par exemple, pour chaque coquille 2 ou 3, en un lien élastique 37 tendu entre un point de cette coquille, par exemple au niveau de butée 12, et un point fixe 38 situé sur la coque 1 du casque, le lien élastique 37 pouvant traverser la fente 15 pour passer sous la coque 1. Ces moyens de rappel sont aussi réalisables sous toute forme équivalente, par exemple avec un ressort spiral de section oblongue ou plate, donc de faible encombrement, du type "ressort de chargeur".According to a complementary arrangement illustrated by FIGS. 5 and 6, elastic return means are provided, for automatically moving the two shells 2 and 3 from their advanced position to their retracted position, when the chinrest is opened. The return means consist, for example, for each shell 2 or 3, of an elastic link 37 stretched between a point of this shell, for example at the stop 12, and a fixed point 38 located on the shell 1 of the helmet, the elastic link 37 which can pass through the slot 15 to pass under the shell 1. These return means can also be produced in any equivalent form, for example with a spiral spring of oblong or flat section, therefore of small size, of the "magazine spring" type ".

Pour parfaire l'étanchéité vis-à-vis de l'écran 5, des joints (non représentés) peuvent encore être fixés le long des bords supérieurs des deux coquilles 1 et 2. Il est à noter que, dans le cas d'un écran pivotant 5 prévu démontable, l'escamotage des deux coquilles 2 et 3 facilite considérablement le démontage et le remontage de l'écran 5.To complete the seal vis-à-vis the screen 5, seals (not shown) may also be fixed along the upper edges of the two shells 1 and 2. It should be noted that, in the case of a pivoting screen 5 provided for removable, the retraction of the two shells 2 and 3 considerably facilitates the disassembly and reassembly of the screen 5.

Les figures 11 et 12 montrent une variante dans laquelle les deux coquilles symétriques 2 et 3 sont liées l'une et l'autre aux régions latérales de la coque 1 du casque au moyen de biellettes articulées 31 et 32, comme illustré sur le dessin pour la coquille droite 2. La première biellette 31, située plus en avant, est articulée par un axe 33 à la coque 1, et est articulée par un autre axe 34 à la coquille 2. La seconde biellette 32, située plus en arrière, est articulée par un axe 35 à la coque 1, et est articulée par un dernier axe 36 à la coquille 2.FIGS. 11 and 12 show a variant in which the two symmetrical shells 2 and 3 are each linked to the lateral regions of the shell 1 of the helmet by means of articulated links 31 and 32, as illustrated in the drawing for the right shell 2. The first link 31, located further forward, is articulated by an axis 33 to the shell 1, and is articulated by another axis 34 to the shell 2. The second link 32, located further back, is articulated by an axis 35 to the shell 1, and is articulated by a last axis 36 to the shell 2.

On obtient ainsi une structure en quadrilatère déformable, permettant de déplacer la coquille 2 entre une position avancée (figure 11) et une position reculée (figure 12), en passant par des positions intermédiaires telles que celle indiquée en traits mixtes sur la figure 11. En position avancée, les deux coquilles 2 et 3 se rejoignent suivant une ligne 4 située dans le plan médian longitudinal P du casque, et ces deux coquilles peuvent alors être réunies rigidement l'une à l'autre par des moyens de verrouillage, ici non représentés mais réalisables comme décrit précédemment. En position reculée, les deux coquilles 2 et 3 sont ramenées contre la coque 1 du casque, et elles dégagent ainsi entièrement la face de l'utilisateur.A deformable quadrilateral structure is thus obtained, making it possible to move the shell 2 between an advanced position (FIG. 11) and a retracted position (FIG. 12), passing through intermediate positions such as that indicated in dashed lines in FIG. 11. In the advanced position, the two shells 2 and 3 meet along a line 4 located in the longitudinal median plane P of the helmet, and these two shells can then be rigidly joined to one another by locking means, here not shown but achievable as described above. In the retracted position, the two shells 2 and 3 are brought back against the shell 1 of the helmet, and they thus completely release the face of the user.

Compte tenu de cette dernière particularité, le casque de type "intégral" selon la présente invention est plus spécialement utilisable comme un casque de motocycliste destiné aux personnels de police et de gendarmerie.In view of this latter feature, the "full-face" type helmet according to the present invention is more particularly usable as a motorcycle helmet intended for police and gendarmerie personnel.

Comme il va de soi, l'invention ne se limite pas aux seules formes d'exécution de ce casque de type "intégral" qui ont été décrites ci-dessus, à titre d'exemples; elle en embrasse, au contraire, toutes les variantes de réalisation et d'application respectant le même principe. C'est ainsi, notamment, que l'on ne s'éloignerait pas du cadre de l'invention par l'utilisation de moyens équivalents de ceux décrits, en ce qui concerne la liaison entre chaque coquille et la coque du casque, ou la réalisation du verrouillage d'une coquille sur l'autre en position avancée. Des dispositions complémentaires sont aussi envisageables, telles qu'un doigt vertical actionné par la manoeuvre des moyens de verrouillage et agissant sur le bord inférieur de l'écran pivotant pour soulever légèrement ce dernier au moment de l'ouverture de la mentonnière. Une autre éventualité, entrant toujours dans le cadre de l'invention, consiste à prévoir une motorisation du mouvement des deux coquilles entre leur position avancée et leur position reculée; les moyens moteurs, qui dans ce cas assurent l'ouverture et la fermeture de la mentonnière du casque, peuvent être commandés à distance par une liaison sans fil telle que liaison radio, par exemple depuis un petit boîtier émetteur placé sur le guidon de la motocyclette.It goes without saying that the invention is not limited to the sole embodiments of this "integral" type helmet which have been described above, by way of examples; on the contrary, it embraces all of the variant embodiments and applications respecting the same principle. It is thus, in particular, that one would not depart from the scope of the invention by the use of means equivalent to those described, as regards the connection between each shell and the helmet shell, or the locking of one shell on the other in the advanced position. Complementary arrangements are also conceivable, such as a vertical finger actuated by the operation of the locking means and acting on the lower edge of the pivoting screen to slightly lift the latter when the chinrest is opened. Another possibility, still within the scope of the invention, consists in providing a motorization of the movement of the two shells between their advanced position and their retracted position; the motor means, which in this case ensure the opening and closing of the chin strap of the helmet, can be remotely controlled by a wireless link such as radio link, for example from a small transmitter box placed on the handlebars of the motorcycle .

Claims (19)

  1. A helmet of the full face type, more particularly for motorcyclists, the chin-piece of which comprises two mutually symmetrical movable shells (2,3) linked to the right and left sides respectively of the body (1) of the helmet and movable between a first position, in which the forward ends of the two shells (2,3) meet each other (at 4) substantially in the longitudinal median plane (P) of the helmet, and a second position, in which a substantially free space is left between the forward ends of the said shells (2,3), characterised in that the two movable shells (2,3) are displaceable between an advanced position, in which they themselves constitute the chin-piece of the helmet, and a retracted position, in which the same two shells (2,3) are hidden in the sides of the body (1) of the helmet and leave the entire face of the wearer uncovered.
  2. A helmet of the full face type as in Claim 1, characterised in that the two shells (2,3) are movable between their advanced position and their retracted position along slideways (8,9 respectively) formed on the sides of the body (1) of the helmet.
  3. A helmet of the full face type as in Claim 2, characterised in that each lateral slideway (8,9) on the body (1) is adapted as a double slideway engaging with two pairs of guide lugs (10,11) provided towards the rear of the corresponding shell (2,3).
  4. A helmet of the full face type as in Claim 3, characterised in that each double lateral slideway is formed by an elongated reinforcement (8) on the body (1) and a corresponding attached component (9).
  5. A helmet of the full face type as in Claim 3 or 4, characterised in that each slideway (8,9) has an interruption at the front, such that when the corresponding shell (2,3) is in its advanced position the pair of lugs (10) situated nearest the front can escape from the said slideway and take up a more inward position, whilst the other pair of lugs (11) situated further back remains permanently engaged in the double slideway (8,9).
  6. A helmet of the full face type as in any of Claims 2 to 5, characterised in that at the rear end of each shell (2,3) there is an inwardly projecting stop (12), which engages in a complementary recess (13) when the shell is in its advanced position.
  7. A helmet of the full face type as in Claim 6, characterised in that the stop (12) on each shell (2,3) is removeable from the outside, its withdrawal allowing the shell to be taken off the body (1) of the helmet.
  8. A helmet of the full face type as in Claim 7, characterised is that the removable stop is constituted by a type of screw (12) which permits separation from the corresponding shell (2,3) after slight rotation.
  9. A helmet of the full face type as in any of Claims 2 to 8, chracterised in that each shell (2,3) is extended rearwardly as a relatively flexible mask (14) which conceals the associated slideway (8,9), more particularly when the shell (2,3) is in its advanced position.
  10. A helmet of the full face type as in Claim 9, characterised in that the lateral mask (14) takes the form of a strap passing through a slit (15) provided in the body (1) of the helmet.
  11. A helmet of the full face type as in Claim 1, characterised in that each of the two shells (2,3) is linked to the corresponding side of the body (1) of the helmet by means of paired links (31,32) which form a deformable quadlilateral.
  12. A helmet of the full face type as in any of Claims 1 to 11, characterised in that bolting means (16) are provided to secure the junction between the forward ends of the two movable shells (2,3) when they are in their forward advanced position.
  13. A helmet of the full face type as in Claim 12, characterised in that the bolting means (16) consists of guides (17) disposed towards the front end of each shell (2,3), for a bolting axle (18) capable of sliding and rotating and provided at its free end with a lateral bolting stop (19) adapted to enter and be held in a corresponding recess (20) at the forward end of the other shell.
  14. A helmet of the full face type as in Claim 13, characterised in that the far end of each bolt fixing axle (18) from the stop (19) is linked to a closure button (21,22,23) adapted for the manual control of the sliding and pivoting movements of the said bolting axle (18).
  15. A helmet of the full face type as in Claim 13, characterised in that each closure button consists of a first section (21,22) slidably mounted parallel with the bolting axle (19) and linked axially thereto, and a second section (23) movable at right angles to the first, the displacement of this second section being accompanied by a rotation of the bolting axle (18) against the resistance of a spring (25) opposing the movement of the bolting axle (18).
  16. A helmet of the full face type as in any of Claims 12 to 15, characterised in that the front ends of the two movable shells (2,3) also feature matching projections (28) and recesses (29), more particularly of conical form, ensuring the exact positioning of the one shell relative to the other when the chin-piece has been closed.
  17. A helmet of the full face type as in any of Claims 1 to 16, characterised in that the upper edge of each movable shell (2,3) carries a salient (30) of triangular shape, which when the chin-piece is in the closed position forms an exact prolongation of the face of the body (1) of the helmet.
  18. A helmet of the full face type as in any of Claims 1 to 17, characterised in that elastic retraction means (37,38) are provided to retract the two shells (2,3) automatically from their advanced to the retracted positions when the chin-piece is opened.
  19. A helmet of the full face type as in any of Claims 1 to 18, characterised in that driving means are provided to move the two shells (2,3) between their advanced and their retracted positions, the driving means causing the chin-piece to open and close being remotely controllable.
EP90420456A 1989-12-14 1990-10-22 Full face helmet, in particular for motorcyclist Expired - Lifetime EP0433182B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90420456T ATE99891T1 (en) 1989-12-14 1990-10-22 FULL HELMET, ESPECIALLY FOR MOTORCYCLISTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8916855A FR2655823B1 (en) 1989-12-14 1989-12-14
FR8916855 1989-12-14

Publications (2)

Publication Number Publication Date
EP0433182A1 EP0433182A1 (en) 1991-06-19
EP0433182B1 true EP0433182B1 (en) 1994-01-12

Family

ID=9388731

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90420456A Expired - Lifetime EP0433182B1 (en) 1989-12-14 1990-10-22 Full face helmet, in particular for motorcyclist

Country Status (8)

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US (1) US5093939A (en)
EP (1) EP0433182B1 (en)
JP (1) JPH04119107A (en)
AT (1) ATE99891T1 (en)
CA (1) CA2029607C (en)
DE (1) DE69005996T2 (en)
ES (1) ES2048472T3 (en)
FR (1) FR2655823B1 (en)

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Also Published As

Publication number Publication date
CA2029607C (en) 1999-12-28
FR2655823A1 (en) 1991-06-21
ATE99891T1 (en) 1994-01-15
FR2655823B1 (en) 1992-03-13
ES2048472T3 (en) 1994-03-16
DE69005996T2 (en) 1994-05-05
EP0433182A1 (en) 1991-06-19
CA2029607A1 (en) 1991-06-15
JPH04119107A (en) 1992-04-20
DE69005996D1 (en) 1994-02-24
US5093939A (en) 1992-03-10

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