EP4338635A1 - Protective helmet with movable chin guard - Google Patents
Protective helmet with movable chin guard Download PDFInfo
- Publication number
- EP4338635A1 EP4338635A1 EP23197976.6A EP23197976A EP4338635A1 EP 4338635 A1 EP4338635 A1 EP 4338635A1 EP 23197976 A EP23197976 A EP 23197976A EP 4338635 A1 EP4338635 A1 EP 4338635A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strap
- chin guard
- shell
- connection part
- chin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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- 230000005489 elastic deformation Effects 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 8
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- 239000013536 elastomeric material Substances 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 description 5
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- 230000001052 transient effect Effects 0.000 description 4
- 235000005921 Cynara humilis Nutrition 0.000 description 3
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- 239000002184 metal Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
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- 229920000728 polyester Polymers 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- 230000002747 voluntary effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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- 239000004416 thermosoftening plastic Substances 0.000 description 1
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42B—HATS; HEAD COVERINGS
- A42B3/00—Helmets; Helmet covers ; Other protective head coverings
- A42B3/32—Collapsible helmets; Helmets made of separable parts ; Helmets with movable parts, e.g. adjustable
- A42B3/326—Helmets with movable or separable chin or jaw guard
Definitions
- the present invention relates to protective helmets, in particular helmets fitted with a chin guard capable of being raised towards the rear, and more particularly helmets for motorcyclists.
- helmets called modular helmets
- a chin guard mounted movable in rotation on the shell so as to be able to raise the chin guard towards the rear of the shell.
- the chin guard When the chin guard is in the raised position, the helmet allows, in particular, driving in high heat.
- the chin guard in the lowered position, called the full position, the chin guard provides maxillary protection and allows driving in complete safety equivalent to that provided by a full-face helmet.
- most modular helmets include a chin guard locking system in the lowered position, the locking system being located below an area that may be subject to impacts. This implies that the locking system is protected from direct impacts.
- the chin guard in the raised position is found in the defined zone that can be subjected to direct impacts, which is why the locking systems in the raised position are not protected from direct impacts.
- these locking systems do not sufficiently resist direct and multiple impacts. Thus, to resist (without breakage or deformation) the significant energy stored during an impact, it would then be necessary to considerably increase the sections of the parts implying an increase in weight and bulk, which would not is not applicable to a motorcycle helmet.
- An object of the invention consists of overcoming all or part of these drawbacks, and more particularly to provide a protective helmet adapted to make the locking of the rotational movement of the chin guard more reliable in the raised position.
- Another object is to provide a protective helmet that is simple to use and as light as possible.
- a protective helmet comprising a shell, a chin guard and a system for articulating the chin guard to the shell so as to move the chin guard relative to the shell between a lowered position and a raised position, which comprises at least one system for locking the chin guard in the raised position which has a first connecting part mounted on the chin guard and a second connecting part mounted on the shell, configured so that, in the raised position, the first part of connection is attachable to the second connection part by a locking action so as to reach a locked position of the chin strap, and so that the first connection part is detachable from the second connection part by an unlocking action from the locked position of the chin guard.
- at least one of the first connection part and the second connection part comprises a strap of which at least one section is made of elastomeric material.
- Another aspect relates to a method of using the helmet, comprising locking the chin guard in the raised position and/or unlocking the chin guard in the raised position.
- the portion is further configured to deform elastically during the locking action.
- one of the first and second connection parts comprises a strap of which at least one section corresponding to the portion is made of elastomeric material.
- the other of the first and second connecting portions includes a finger and the strap includes a through hole into which the finger is inserted in the locked configuration.
- the finger comprises a trunk and a head located at a distal end of the trunk, the insertion or withdrawal of the finger relative to the through hole generating an elastic deformation of said at least one section of the strap.
- the through hole is able to deform elastically during insertion or withdrawal of the finger relative to the through hole.
- a diameter of the through hole is strictly less than a diameter of the head.
- a wall of the through hole surrounds the trunk of the finger in the locked configuration.
- the strap belongs to the first connection part.
- a longitudinal axis of the strap is located on a tangent to the trajectory of movement of the chin bar relative to the shell between the lowered position and the raised position.
- the strap is removably mounted on at least one of the chin guard and the shell.
- the strap includes a gripping tab at one of its longitudinal edges.
- the strap is movably mounted on at least one of the chin guard and the shell, between an inactive position in which the strap is detached from the other of the chin guard and the shell and an active position in which the strap keeps the chin bar in the locked configuration.
- the strap is configured so that, in the inactive position, the strap is removably attached to at least one of the chin strap and the shell on which the strap is movably mounted.
- the strap is mounted movable around a main axis, the through hole extends along a secondary axis and the finger extends along a tertiary axis, the strap being configured so that , in the raised position, when the chin guard is in the unlocked configuration, a distance between the main axis and the secondary axis is strictly less than a distance between the main axis and the tertiary axis.
- the helmet comprises two locking systems at two opposite sides of the shell.
- the helmet includes a locking system at one side of the shell. This provides a locking system that can be unlocked with one hand. This is advantageous for a motorcyclist who can keep the other hand on the handlebars.
- the helmet comprises at least one additional locking system configured to lock the chin guard relative to the shell in an intermediate position between the lowered position and the raised position.
- the strap comprises a reinforcement configured to prevent the elastic deformation of the portion from causing an elongation of the strap greater than or equal to a determined elongation.
- the elongation determined is strictly less than an elongation leading to rupture of the portion.
- the strap comprises a first mounting zone intended to be mounted on one of the shell and the chin bar and a second mounting zone intended to be mounted on the other of the shell and the chin bar, the reinforcement forming a closed loop surrounding the first and second mounting zones.
- a protective helmet 1 in particular a helmet for a motorcyclist.
- the helmet 1 comprises a shell 2, a chin guard 3 mounted on the shell 2 and an articulation system 4 for the chin guard 3.
- the helmet 1 may further comprise a screen 5 located in front of the shell 2.
- the articulation system 4 is configured so as to move the chin guard 3 relative to the shell 2 between a lowered position A, illustrated in figure 1 , and a raised position R, illustrated in figure 2 .
- Helmet 1 is also said to be a modular helmet.
- the chin guard 3 is mounted to move in rotation around an axis of rotation 6 between the lowered position A and the raised position R.
- the chin guard 3 describes a circular trajectory 17, as illustrated in Fig. figure 2 .
- the articulation system 4 can be configured so as to move the chin guard 3 along complex trajectories, for example elliptical, spiral, etc.
- the protective helmet 1 comprises at least one locking system 7 of the chin guard 3 in the raised position R.
- the locking system 7 is configured to removably hook the chin guard 3 in the raised position R to the shell 2.
- the chin guard 3 can be kept attached to the shell 2, that is to say that it is immobile, and can no longer be moved except by voluntarily unhooking the chin guard 3.
- the locking system 7 comprises a first connection part 8 mounted on the chin guard 3 and a second connection part 9 mounted on the shell 2.
- the first and second connection parts 8, 9 are configured so that, in the raised position R, the first connection part 8 is able to be removably attached to the second connection part 9. That is to say, the first connection part 8 is also capable of being detached from the second connection part 9. Furthermore, the first connection part 8 is capable of being attached to the second connection part 9 by a locking action from a configuration unlocked D of the chin guard 3 so as to reach a locked configuration V of the chin guard 3. In other words, when the chin guard 3 is in the raised position R, the chin guard 3 can be in an unlocked configuration D, illustrated in figures 3 And 7 , or in a V-locked configuration, shown in figures 2 , 5 And 9 .
- the first connecting part 8 is detached from the second connecting part 9 and the chin guard 3 can be moved between the lowered position A and the raised position R.
- the locked configuration V the first connecting part 8 is attached to the second connecting part 9 and the chin guard 3 is held in the raised position R.
- At least one of the first and second connection parts 8, 9 comprises a portion 10 configured to deform elastically during the unlocking action so as to detach the first connection part 8 from the second part of connection 9.
- the portion 10 is also configured to deform elastically during the locking action.
- the elastic deformation of a connection part 8, 9 makes it possible to bring it closer to the other connection part 9, 8 until the two connection parts 8, 9 are brought into contact with one another, and more particularly to attach the first part 8 to the second part 9.
- the chin guard 3 is either in the lowered position A, or in the raised position R and in the unlocked configuration D, of way that the first connection part 8 is moved away from the second part 9.
- the elastically deformable portion 10 comprises traction return means.
- the tension return means may include a tension spring, for example a metal tension spring.
- one of the first and second connection parts 8, 9 comprises a strap 11 of which at least one section 110 is made of elastomeric material.
- at least one section 110 of the strap 11 corresponds to the elastically deformable portion 10.
- at least one section 110 of the strap 11 is elastically deformable.
- the section 110 may be the entire strap 11, or part of the strap 11.
- the strap 11 may comprise several elastically deformable sections 110.
- Section 110 can be made of rubber or a thermoplastic elastomer, for example a thermoplastic elastomer based on polyurethane.
- the other of the first and second connection parts 9, 8 comprises a finger 12, and the strap 11 comprises a through hole 13 into which the finger 12 is inserted in the locked configuration V.
- the finger 12 may comprise a trunk 14 and a head 15 located at a distal end of the trunk 14. In this case, the insertion or withdrawal of the finger 12 relative to the through hole 13 generates an elastic deformation of at least one section 110 of the strap 11.
- the through hole 13 is able to deform elastically during insertion or removal of the finger 12 relative to the through hole 13.
- the through hole 13 is formed in at least one section 110 of the strap 11.
- a diameter of the through hole 13 is strictly less than a diameter of the head 15. The diameters are measured along a longitudinal axis X along which the strap 11 extends.
- the head 15 of the finger 12 passes through the through hole 13.
- an insertion force F1 is applied to the first connection part 8, perpendicular to the longitudinal axis deforms elastically for the passage of the head 15, until the chin guard 3 reaches the locked configuration V, as illustrated in figure 5 .
- the through hole 13 returns to its initial shape.
- a wall 16 of the through hole 13 surrounds the trunk 14 of the finger 12 in the locked configuration V. It can be noted that when the diameter of the head 15 is strictly greater than that of the through hole 13, the head 15 acts as a stop for the first connection part 8 and to prevent accidental unlocking of the chin guard 3.
- a voluntary unlocking action is required from the user.
- the unlocking action is carried out, from the locked configuration V, by detaching the first part 8 from the second connecting part 9, as illustrated in Fig. Figure 6 .
- a withdrawal force F2 is applied to the first part 8, perpendicular to the longitudinal axis X, and in the opposite direction to the insertion force F1 applied during the locking action.
- the withdrawal force F2 can be applied to an end part of the first connection part 8.
- the through hole 13 is deformed to allow withdrawal of the finger 12 from the through hole 13.
- the strap 11 may include a gripping tab 18 located at the end part of the strap 11, as illustrated in Figure 7 .
- the gripping tab 18 can be located at one of the longitudinal edges of the strap 11, as illustrated in figures 1 And 2 .
- a stop stop can be provided, not shown for simplification purposes, on the shell 2 and intended to cooperate with the chin guard 3 in the raised position R, in order to stop the movement of the chin guard 3.
- the stop stop allows you to control the position of the first connection part 8 with respect to the position of the second connection part 9, when the chin guard 3 is in the raised position R, in order to facilitate the attachment of the first connecting part 8 to the second connecting part 9.
- the strap 11 belongs to the first connection part 8.
- the strap 11 makes it possible to generate a maximum holding force of the chin guard 3 relative to the shell 2.
- the strap 11 is removably mounted on at least one of the chin strap 3 and the shell 2.
- the strap 11 can be removed from the helmet, to be stored when the user wishes to use the chin strap 3 in the lowered configuration A, in particular to lighten the helmet 1.
- the strap 11 is movably mounted on at least one of the chin guard 3 and the shell 2.
- the strap 11 can be mounted both movable and removable on at least one of the chin guard 3 and the shell 2.
- the strap 11 can be mounted movable in rotation around a main axis 19.
- the helmet 1 includes a rivet 30 for mounting the strap 11 on the chin guard 3 and movable in rotation around the main axis 19.
- the strap 11 is movable between an inactive position S1, illustrated in figure 1 , and an active position S2, illustrated in figure 2 . In the inactive position S1, the strap 11 is detached from the other among the first and second connection parts 9, 8.
- the strap 11 is configured so that, in the inactive position S1, the strap 11 is removably attached to at least one of the chin guard 3 and the shell 2 on which the strap 11 is movably mounted.
- the strap 11 can be attached to prevent it from being moved, in particular due to driving, and from hindering the user.
- the strap 11 is movably mounted on the chin strap 3, and the gripping tab 18 can have a “U” shape to form a groove configured to receive an edge of the chin strap 3.
- the gripping tab 18 forms a clamp which encloses the edge of the chin strap 3 and allows the strap 11 to be held attached to the chin strap 3, by pinching.
- the strap 11 can be held in the inactive position S1 by removable attachment means.
- the removable attachment means can be magnetic means, or pressure means (such as press studs), or self-gripping closure means (that is to say closure means comprising first closing elements provided with hooks capable of cooperating with second receiving elements provided with textile loops).
- closure means comprising first closing elements provided with hooks capable of cooperating with second receiving elements provided with textile loops.
- the strap 11 is mounted on at least one of the chin strap 3 and the shell 2, at the level of the main axis 19, the through hole 13 extends along a secondary axis 20 and the finger 12 s 'extends along a tertiary axis 21.
- the strap 11 is mounted movable around the axis of the main axis 19, between the inactive position S1 and the active position S2.
- extends along an axis we mean an element whose length extends along this axis.
- the secondary axis 20 may be an axis of symmetry of the through hole 13.
- the through hole 13 may have a circular, oblong or elliptical shape.
- the tertiary axis 21 can be an axis of symmetry of the finger 12.
- the strap 11 is further configured so that, in the raised position R, when the chin strap 3 is in the unlocked configuration D, a distance L1 between the axis main 19 and the secondary axis 20 is strictly less than a distance L2 between the main axis 19 and the tertiary axis 21.
- the distances L1, L2 are measured along the longitudinal axis X.
- the through hole 13 is moved so that the secondary axis 20 coincides with the tertiary axis 21.
- a force F3 is applied directed along the longitudinal axis X and towards the other connection part 9, in order to deform the section 110 of the strap 11.
- the section 110 can be the part of the strap 11 on which the through hole 13 is formed.
- the section 110 can be the part of strap 11 located between the main axis 19 and the secondary axis 20.
- the section 110 can also be the assembly of the strap 11.
- the strap 11 can be fixedly mounted on at least one of the chin guard 3 and the shell 2 at a fixing point by which passes the main axis 19.
- the strap 11 can be fixedly mounted using a screw, rivet, snap button, hook, etc.
- the strap 11 can also be mounted on the shell 2 or the chin guard 3, by a pivot connection, sliding pivot, or movable in translation.
- the unlocking action is carried out, from the locked configuration V, by detaching the first part 8 from the second connecting part 9, as illustrated in Fig. Figure 10 .
- the strap 11 may comprise an eyelet 40, made of metal or thermoplastic, placed within the through hole 13.
- the section 110 is located between the main axis 19 and the eyelet 40.
- the hole through hole 13 corresponds to the orifice of the eyelet 40.
- the through hole 13 has a diameter strictly greater than the diameter of the head 15 of the finger 12 so as to allow the insertion of the finger 12 into the through hole 13 when of the locking action, and a withdrawal of the finger 12 during the unlocking action.
- the strap 11 may include a reinforcement 200.
- the reinforcement 200 is integrated into the heart of the strap 11, that is to say knotted within the strap 11.
- the reinforcement 200 has the objective of limiting the extension of the elastomeric portion 10 of the strap 11.
- the reinforcement 200 is configured to prevent the elastic deformation of the portion 10 from causing greater elongation of the strap 11 or equal to a determined elongation.
- the determined elongation is strictly less than an elongation leading to the rupture of the portion 10.
- One purpose of the reinforcement 200 is to avoid the rupture of the portion 10, in the case where the chin guard 3 is in the raised position R and in the locked configuration V, during impacts, in particular during shocks on the chin guard 3 due to an accident, for example a fall. Indeed, during impacts while the chin guard is in the raised R and locked V position, the force and the elongation of the strap 11 are much greater, which can lead to the rupture of the elastomeric portion 10 of the strap 11.
- the purpose of the reinforcement is to limit elongation during impacts. In other words, the elastomeric portion 10 of the strap 11 can be made to extend sufficiently significantly to induce the partial or total rupture of the strap 11.
- the reinforcement 200 makes it possible to ensure blocking at a determined maximum elongation. Furthermore, the elongation of the elastomer portion 10 allows good operation of the locking system 7, and also a damping of the forces applied to the chin guard 3 during impacts, in particular to absorb the energy during rotational impacts, namely allow the rimpedement of a connection part 8, 9 towards the other connection part 8, 9. Thus, the reinforcement 200 is configured not to block the strap 11 in its rest position, but must act as a blocker after a distance given elongation.
- the reinforcement 200 therefore lets the elastomer portion 10 of the strap 11 extend to allow the connection parts 8, 9 to come together, then the reinforcement 200 acts to suddenly block the strap 11 of the locking system 7 and thus stop the elongation of the strap 11, in particular the elongation of the portion 10.
- the reinforcement 200 is sufficiently rigid not to break during impacts.
- the reinforcement 200 may, however, have an elastic property and also have an elongation, preferably an elongation strictly less than that of the portion 10.
- the strap 11 comprises a first mounting zone 201 intended to be mounted on the one among the shell 2 and the chin guard 3 and a second mounting zone 202 intended to be mounted on the other among the shell 2 and the chin guard 3, the reinforcement 200 forming a closed loop surrounding the first and second mounting zones 201, 202.
- the mounting zones 201, 202 are also called attachment points.
- the reinforcement 200 forms a closed loop around the two attachment points, that on the chin guard 3 and that on the shell 2.
- the reinforcement 200 can be made of metal, plastic, composite, elastomer, fabric or fiber...
- the reinforcement 200 is made using braid made of plastic or composite material (example: polyester braid, polyester/carbon, polyethylene fibers, nylon, etc.).
- the reinforcement 200 can therefore be produced by overcasting the reinforcement 200 on the strap 11 using a plastic fiber braid.
- the braid passes through holes 203, as illustrated in the figures 11 and 12 , or housings 204, as illustrated in the Figure 13 , provided in the strap 11 and is closed in a loop by knots or any other means of connecting the ends of the braid.
- the closed loop is formed by a loop having two intersecting strands, as shown in Figure Figure 12 .
- the strap 11 comprises two guides 207 and the closed loop is formed by a loop having two strands in contact respectively with the two guides 207 so as to maintain the two strands in a central part of the strap 11.
- a groove 205 is provided on a contour of the strap 11, and the reinforcement 200 is housed within the groove 205 so that the reinforcement 200 forms a closed loop passing around the mounting zones 201, 202.
- the strap 11 comprises a through slot 206
- the reinforcement 200 passes into a first housing 204, leaves the first housing 204 to open into the through slot 206 and passes into a second housing 204, then leaves the second housing 204 at the exterior of the strap 11.
- the reinforcement 200 can pass into each housing 204 and alternately into the through opening 206 and outside the strap 11 after each passage through a housing 204.
- the helmet 1 can include two locking systems 7 located respectively at two opposite sides 41, 42 of the shell 2.
- the helmet 1 comprises a single locking system 7 at the level of a side 41, 42 of the shell 2.
- the helmet 1 may further comprise at least one additional locking system 43 configured to lock the chin guard 3 relative to the shell 2 in an intermediate position, not shown for simplification purposes, between the lowered position A and the raised position R. More particularly, the additional locking system 43 comprises a third connection part 44 mounted on the shell 2 and configured to cooperate with the first connection part 8 mounted on the chin guard 3.
- the helmet which has just been described is simple to use, particularly light, and allows driving in complete safety whatever the different positions of the chin guard.
Landscapes
- Helmets And Other Head Coverings (AREA)
Abstract
Casque de protection, comprenant : une coque (2) ; une mentonnière (3) déplaçable relativement à la coque (2) entre une position abaissée (A) et une position relevée ; et au moins un système de verrouillage (7) de la mentonnière dans la position relevée qui présente : une première partie de raccordement (8) montée sur la mentonnière (3) et une deuxième partie de raccordement (9) montée sur la coque (2), configurées pour que, dans la position relevée, la première partie de raccordement (8) soit apte à être attachée de manière amovible à la deuxième partie de raccordement (9) ; et au moins l'une parmi les première et deuxième parties de raccordement (8, 9) comprend une portion (10) configurée pour se déformer élastiquement lors d'une action de déverrouillage de sorte à détacher la première partie de raccordement (8) de la deuxième partie de raccordement (9).Protective helmet, comprising: a shell (2); a chin guard (3) movable relative to the shell (2) between a lowered position (A) and a raised position; and at least one locking system (7) of the chin guard in the raised position which has: a first connecting part (8) mounted on the chin guard (3) and a second connecting part (9) mounted on the shell (2 ), configured so that, in the raised position, the first connection part (8) is able to be removably attached to the second connection part (9); and at least one of the first and second connection parts (8, 9) comprises a portion (10) configured to deform elastically during an unlocking action so as to detach the first connection part (8) from the second connection part (9).
Description
La présente invention concerne les casques de protection, en particulier les casques munis d'une mentonnière apte à être relevée vers l'arrière, et plus particulièrement les casques pour motocyclistes.The present invention relates to protective helmets, in particular helmets fitted with a chin guard capable of being raised towards the rear, and more particularly helmets for motorcyclists.
Actuellement, il existe des casques, appelés casques modulables, pourvus d'une coque et d'une mentonnière montée mobile en rotation sur la coque de sorte à pouvoir relever la mentonnière vers l'arrière de la coque. Lorsque la mentonnière est dans la position relevée, le casque permet, notamment, une conduite sous de fortes chaleurs. Au contraire, dans la position abaissée, dite position intégrale, la mentonnière assure une protection maxillaire et permet une conduite en toute sécurité équivalente à celle procurée par un casque intégral.Currently, there are helmets, called modular helmets, provided with a shell and a chin guard mounted movable in rotation on the shell so as to be able to raise the chin guard towards the rear of the shell. When the chin guard is in the raised position, the helmet allows, in particular, driving in high heat. On the contrary, in the lowered position, called the full position, the chin guard provides maxillary protection and allows driving in complete safety equivalent to that provided by a full-face helmet.
On peut citer, par exemple, la demande de brevet français
Par ailleurs, la plupart des casques modulables comportent un système de verrouillage de la mentonnière dans la position abaissée, le système de verrouillage étant situé en dessous d'une zone pouvant être soumise à des impacts. Cela implique que le système de verrouillage est protégé des impacts directs. En revanche, la mentonnière en position relevée se retrouve dans la zone définie pouvant être soumise à des impacts directs, c'est pourquoi, les systèmes de verrouillage dans la position relevée ne sont pas protégés des impacts directs. En outre, ces systèmes de verrouillage ne résistent pas suffisamment à des impacts directs et multiples. Ainsi, pour résister (sans casse, ni déformation) à l'énergie importante emmagasinée lors d'un impact, il serait alors nécessaire d'augmenter considérablement les sections des pièces impliquant l'augmentation du poids et de l'encombrement ce qui n'est pas applicable à un casque pour motocycle.Furthermore, most modular helmets include a chin guard locking system in the lowered position, the locking system being located below an area that may be subject to impacts. This implies that the locking system is protected from direct impacts. On the other hand, the chin guard in the raised position is found in the defined zone that can be subjected to direct impacts, which is why the locking systems in the raised position are not protected from direct impacts. In addition, these locking systems do not sufficiently resist direct and multiple impacts. Thus, to resist (without breakage or deformation) the significant energy stored during an impact, it would then be necessary to considerably increase the sections of the parts implying an increase in weight and bulk, which would not is not applicable to a motorcycle helmet.
Un objet de l'invention consiste à pallier tout ou partie de ces inconvénients, et plus particulièrement à fournir un casque de protection adapté pour fiabiliser le verrouillage du mouvement de rotation de la mentonnière dans la position relevée.An object of the invention consists of overcoming all or part of these drawbacks, and more particularly to provide a protective helmet adapted to make the locking of the rotational movement of the chin guard more reliable in the raised position.
Un autre objet consiste à fournir un casque de protection simple à utiliser et le moins lourd possible.Another object is to provide a protective helmet that is simple to use and as light as possible.
Les autres objets, caractéristiques et avantages de la présente invention apparaîtront à l'examen de la description suivante et des dessins d'accompagnement.The other objects, characteristics and advantages of the present invention will appear on examination of the following description and the accompanying drawings.
Selon un premier aspect, il est proposé un casque de protection, comprenant :
- une coque ;
- une mentonnière ; et
- un système d'articulation de la mentonnière de sorte à déplacer la mentonnière relativement à la coque entre une position abaissée et une position relevée.
- a shell ;
- a chin strap; And
- a chin guard articulation system so as to move the chin guard relative to the shell between a lowered position and a raised position.
Le casque de protection comprend, selon le premier aspect, au moins un système de verrouillage de la mentonnière dans la position relevée qui présente :
- une première partie de raccordement montée sur la mentonnière et une deuxième partie de raccordement montée sur la coque, configurées pour que, dans la position relevée, la première partie de raccordement soit apte à être attachée de manière amovible à la deuxième partie de raccordement par une action de verrouillage depuis une configuration déverrouillée de la mentonnière de sorte à atteindre une configuration verrouillée de la mentonnière, et pour que la première partie de raccordement soit apte à être détachée de la deuxième partie de raccordement par une action de déverrouillage depuis la configuration verrouillée de la mentonnière ;
- au moins l'une parmi la première partie de raccordement et la deuxième partie de raccordement comprenant une portion configurée pour se déformer élastiquement lors de l'action de déverrouillage de sorte à détacher la première partie de raccordement de la deuxième partie de raccordement.
- a first connection part mounted on the chin guard and a second connection part mounted on the shell, configured so that, in the raised position, the first connection part is able to be removably attached to the second connection part by a locking action from an unlocked configuration of the chin bar so as to achieve a locked configuration of the chin bar, and so that the first connection part is able to be detached from the second connection part by an unlocking action from the locked configuration of the chin guard;
- at least one of the first connection part and the second connection part comprising a portion configured to deform elastically during the unlocking action so as to detach the first connection part from the second connection part.
Ainsi, une déformation élastique est nécessaire pour sortir de la position verrouillée. Cela ne se produit que sur une action volontaire et évite un déverrouillage intempestif en cas de choc sur le casque, par exemple lors d'une chute. La portion déformable élastiquement amortit de tels chocs. Un tel système de verrouillage est capable de résister aux impacts et de subir des déformations tout en assurant un maintien sûr et permanent de la mentonnière en position relevée. Le système de verrouillage permet d'amortir un mouvement de la mentonnière lors des impacts, ce qui dissipe considérablement l'énergie.Thus, elastic deformation is necessary to exit the locked position. This only occurs upon voluntary action and prevents accidental unlocking in the event of an impact on the helmet, for example during a fall. The elastically deformable portion cushions such shocks. Such a locking system is capable of resisting impacts and undergoing deformation while ensuring secure and permanent maintenance of the chin guard in the raised position. The locking system helps cushion movement of the chin guard during impacts, which considerably dissipates energy.
Est aussi présenté, selon un autre aspect, un casque de protection comprenant une coque, une mentonnière et un système d'articulation de la mentonnière à la coque de sorte à déplacer la mentonnière relativement à la coque entre une position abaissée et une position relevée, qui comprend au moins un système de verrouillage de la mentonnière dans la position relevée qui présente une première partie de raccordement montée sur la mentonnière et une deuxième partie de raccordement montée sur la coque, configurées pour que, dans la position relevée, la première partie de raccordement soit attachable à la deuxième partie de raccordement par une action de verrouillage de sorte à atteindre une position verrouillée de la mentonnière, et pour que la première partie de raccordement soit détachable de la deuxième partie de raccordement par une action de déverrouillage depuis la position verrouillée de la mentonnière. Selon un aspect, au moins l'une parmi la première partie de raccordement et la deuxième partie de raccordement comprend une sangle dont au moins une section est en matériau élastomère.Also presented, according to another aspect, is a protective helmet comprising a shell, a chin guard and a system for articulating the chin guard to the shell so as to move the chin guard relative to the shell between a lowered position and a raised position, which comprises at least one system for locking the chin guard in the raised position which has a first connecting part mounted on the chin guard and a second connecting part mounted on the shell, configured so that, in the raised position, the first part of connection is attachable to the second connection part by a locking action so as to reach a locked position of the chin strap, and so that the first connection part is detachable from the second connection part by an unlocking action from the locked position of the chin guard. According to one aspect, at least one of the first connection part and the second connection part comprises a strap of which at least one section is made of elastomeric material.
Un autre aspect concerne un procédé d'utilisation du casque, comprenant un verrouillage de la mentonnière dans la position relevée et/ou un déverrouillage de la mentonnière dans la position relevée.Another aspect relates to a method of using the helmet, comprising locking the chin guard in the raised position and/or unlocking the chin guard in the raised position.
D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre de modes de réalisation de l'invention donnés à titre d'exemples non limitatifs et représentés aux dessins annexés, dans lesquels :
- la
figure 1 illustre schématiquement une vue de côté d'un mode de réalisation d'un casque de protection où la mentonnière est dans une position abaissée ; - la
figure 2 illustre schématiquement une vue de côté du casque de protection illustré à lafigure 1 , où la mentonnière est dans une position relevée ; - la
figure 3 illustre de façon schématique une vue en coupe d'un mode de réalisation d'un système de verrouillage où la mentonnière est dans une configuration déverrouillée ; - la
figure 4 illustre de façon schématique une vue en coupe du système de verrouillage illustré à - la
figure 3 où la mentonnière est dans une configuration transitoire par une action de verrouillage ; - la
figure 5 illustre de façon schématique une vue en coupe du système de verrouillage illustré à - la
figure 3 où la mentonnière est dans une configuration verrouillée ; - la
figure 6 illustre de façon schématique une vue en coupe du système de verrouillage illustré à - la
figure 3 où la mentonnière est dans une configuration transitoire par une action de déverrouillage ; - la
figure 7 illustre de façon schématique une vue en coupe d'un autre mode de réalisation d'un système de verrouillage, où la mentonnière est dans une configuration déverrouillée ; - la
figure 8 illustre de façon schématique une vue en coupe du système de verrouillage illustré à - la
figure 7 où la mentonnière est dans une configuration transitoire par une action de verrouillage ; - la
figure 9 illustre de façon schématique une vue en coupe du système de verrouillage illustré à - la
figure 3 où la mentonnière est dans une configuration verrouillée ; - la
figure 10 illustre de façon schématique une vue en coupe du système de verrouillage illustré à - la
figure 3 où la mentonnière est dans une configuration transitoire par une action de déverrouillage ; - les
figures 11 à 14 illustrent de façon schématique des vues de dessus de différents modes de réalisation d'un système de verrouillage ; - la
figure 15 illustre de façon schématique une vue en coupe selon le plan de coupe A-A de lafigure 14 ; - la
figure 16 illustre de façon schématique une vue de dessus d'un autre mode de réalisation d'un système de verrouillage.
- there
figure 1 schematically illustrates a side view of an embodiment of a protective helmet where the chin guard is in a lowered position; - there
figure 2 schematically illustrates a side view of the protective helmet illustrated infigure 1 , where the chin strap is in a raised position; - there
Figure 3 schematically illustrates a sectional view of one embodiment of a locking system where the chin guard is in an unlocked configuration; - there
figure 4 schematically illustrates a sectional view of the locking system illustrated in - there
Figure 3 where the chin guard is in a transient configuration by a locking action; - there
figure 5 schematically illustrates a sectional view of the locking system illustrated in - there
Figure 3 where the chin bar is in a locked configuration; - there
Figure 6 schematically illustrates a sectional view of the locking system illustrated in - there
Figure 3 where the chin guard is in a transient configuration by an unlocking action; - there
Figure 7 schematically illustrates a sectional view of another embodiment of a locking system, where the chin bar is in an unlocked configuration; - there
figure 8 schematically illustrates a sectional view of the locking system illustrated in - there
Figure 7 where the chin guard is in a transient configuration by a locking action; - there
Figure 9 schematically illustrates a sectional view of the locking system illustrated in - there
Figure 3 where the chin bar is in a locked configuration; - there
Figure 10 schematically illustrates a sectional view of the locking system illustrated in - there
Figure 3 where the chin guard is in a transient configuration by an unlocking action; - THE
figures 11 to 14 schematically illustrate top views of different embodiments of a locking system; - there
Figure 15 schematically illustrates a sectional view according to sectional plane AA of theFigure 14 ; - there
Figure 16 schematically illustrates a top view of another embodiment of a locking system.
Avant d'entamer une revue détaillée de modes de réalisation et de mises en oeuvre de l'invention, sont énoncées ci-après des caractéristiques optionnelles qui peuvent éventuellement être utilisées en association ou alternativement.Before beginning a detailed review of embodiments and implementations of the invention, optional characteristics are set out below which may possibly be used in combination or alternatively.
Selon un exemple, la portion est en outre configurée pour se déformer élastiquement lors de l'action de verrouillage.According to one example, the portion is further configured to deform elastically during the locking action.
Selon un exemple, l'une parmi les première et deuxième parties de raccordement comprend une sangle dont au moins une section correspondant à la portion est en matériau élastomère.According to one example, one of the first and second connection parts comprises a strap of which at least one section corresponding to the portion is made of elastomeric material.
Selon un exemple, l'autre parmi les première et deuxième parties de raccordement comprend un doigt et la sangle comprend un trou traversant dans lequel est inséré le doigt dans la configuration verrouillée.In one example, the other of the first and second connecting portions includes a finger and the strap includes a through hole into which the finger is inserted in the locked configuration.
Selon un exemple, le doigt comprend un tronc et une tête située à une extrémité distale du tronc, l'insertion ou le retrait du doigt relativement au trou traversant engendrant une déformation élastique de ladite au moins une section de la sangle.According to one example, the finger comprises a trunk and a head located at a distal end of the trunk, the insertion or withdrawal of the finger relative to the through hole generating an elastic deformation of said at least one section of the strap.
Selon un exemple, le trou traversant est apte à se déformer élastiquement lors de l'insertion ou du retrait du doigt relativement au trou traversant.According to one example, the through hole is able to deform elastically during insertion or withdrawal of the finger relative to the through hole.
Selon un exemple, un diamètre du trou traversant est strictement inférieur à un diamètre de la tête.According to one example, a diameter of the through hole is strictly less than a diameter of the head.
Selon un exemple, une paroi du trou traversant entoure le tronc du doigt dans la configuration verrouillée.In one example, a wall of the through hole surrounds the trunk of the finger in the locked configuration.
Selon un exemple, la sangle appartient à la première partie de raccordement.According to one example, the strap belongs to the first connection part.
Selon un exemple, dans la configuration verrouillée, un axe longitudinal de la sangle est situé sur une tangente à la trajectoire de déplacement de la mentonnière relativement à la coque entre la position abaissée et la position relevée.According to one example, in the locked configuration, a longitudinal axis of the strap is located on a tangent to the trajectory of movement of the chin bar relative to the shell between the lowered position and the raised position.
Selon un exemple, la sangle est montée de manière amovible sur l'une au moins parmi la mentonnière et la coque.According to one example, the strap is removably mounted on at least one of the chin guard and the shell.
Selon un exemple, la sangle comprend une languette de préhension au niveau de l'un de ses bords longitudinaux.According to one example, the strap includes a gripping tab at one of its longitudinal edges.
Selon un exemple, la sangle est montée mobile sur l'une au moins parmi la mentonnière et la coque, entre une position inactive dans laquelle la sangle est détachée de l'autre parmi la mentonnière et la coque et une position active dans laquelle la sangle maintient la mentonnière dans la configuration verrouillée.According to one example, the strap is movably mounted on at least one of the chin guard and the shell, between an inactive position in which the strap is detached from the other of the chin guard and the shell and an active position in which the strap keeps the chin bar in the locked configuration.
Selon un exemple, la sangle est configurée pour que, dans la position inactive, la sangle est attachée de manière amovible sur l'une au moins parmi la mentonnière et la coque sur laquelle la sangle est montée mobile.According to one example, the strap is configured so that, in the inactive position, the strap is removably attached to at least one of the chin strap and the shell on which the strap is movably mounted.
Selon un exemple, la sangle est montée mobile autour d'un axe principal, le trou traversant s'étend le long d'un axe secondaire et le doigt s'étend le long d'un axe tertiaire, la sangle étant configurée de sorte que, dans la position relevée, lorsque la mentonnière est dans la configuration déverrouillée, une distance entre l'axe principal et l'axe secondaire est strictement inférieure à une distance entre l'axe principal et l'axe tertiaire.According to one example, the strap is mounted movable around a main axis, the through hole extends along a secondary axis and the finger extends along a tertiary axis, the strap being configured so that , in the raised position, when the chin guard is in the unlocked configuration, a distance between the main axis and the secondary axis is strictly less than a distance between the main axis and the tertiary axis.
Selon un exemple, le casque comprend deux systèmes de verrouillage au niveau de deux flancs opposés de la coque.According to one example, the helmet comprises two locking systems at two opposite sides of the shell.
Selon un exemple, le casque comprend un système de verrouillage au niveau d'un flanc de la coque. Ainsi on fournit un système de verrouillage qui peut être déverrouillé à une main. Ce qui est avantageux pour un motocycliste qui peut garder l'autre main sur le guidon.According to one example, the helmet includes a locking system at one side of the shell. This provides a locking system that can be unlocked with one hand. This is advantageous for a motorcyclist who can keep the other hand on the handlebars.
Selon un exemple, le casque comprend au moins un système de verrouillage supplémentaire configuré pour verrouiller la mentonnière relativement à la coque dans une position intermédiaire entre la position abaissée et la position relevée.According to one example, the helmet comprises at least one additional locking system configured to lock the chin guard relative to the shell in an intermediate position between the lowered position and the raised position.
Selon un exemple, la sangle comprend un renfort configuré pour empêcher que la déformation élastique de la portion provoque un allongement de la sangle supérieur ou égal à un allongement déterminé.According to one example, the strap comprises a reinforcement configured to prevent the elastic deformation of the portion from causing an elongation of the strap greater than or equal to a determined elongation.
Par exemple, l'allongement déterminé est strictement inférieur à un allongement entraînant la rupture de la portion.For example, the elongation determined is strictly less than an elongation leading to rupture of the portion.
Selon un exemple, la sangle comprend une première zone de montage destinée à être montée sur l'une parmi la coque et la mentonnière et une deuxième zone de montage destinée à être montée sur l'autre parmi la coque et la mentonnière, le renfort formant une boucle fermée entourant les première et deuxième zones de montage.According to one example, the strap comprises a first mounting zone intended to be mounted on one of the shell and the chin bar and a second mounting zone intended to be mounted on the other of the shell and the chin bar, the reinforcement forming a closed loop surrounding the first and second mounting zones.
Sur les
Plus particulièrement, le casque de protection 1 comprend au moins un système de verrouillage 7 de la mentonnière 3 dans la position relevée R. Sur les
Plus particulièrement, au moins l'une parmi les première et deuxième parties de raccordement 8, 9 comprend une portion 10 configurée pour se déformer élastiquement lors de l'action de déverrouillage de sorte à détacher la première partie de raccordement 8 de la deuxième partie de raccordement 9. Avantageusement, la portion 10 est en outre configurée pour se déformer élastiquement lors de l'action de verrouillage. La déformation élastique d'une partie de raccordement 8, 9 permet de la rapprocher vers l'autre partie de raccordement 9, 8 jusqu'à mettre les deux parties de raccordement 8, 9 en contact l'une avec l'autre, et plus particulièrement d'attacher la première partie 8 à la deuxième partie 9. En effet, avant l'action de verrouillage V, la mentonnière 3 est soit dans la position abaissée A, soit dans la position relevée R et dans la configuration déverrouillée D, de façon que la première partie de raccordement 8 est éloignée de la deuxième partie 9. Lorsque la première partie 8 est éloignée de la deuxième partie 9, les deux parties de raccordement 8, 9 ne sont pas en contact l'une avec l'autre. Ainsi, lors de l'action de verrouillage, et du fait que la portion 10 est élastiquement déformable, on peut attacher, inversement détacher, la première partie 8 vis-à-vis de la deuxième partie 9.More particularly, at least one of the first and
Par exemple, la portion 10 déformable élastiquement comprend des moyens de rappel en traction. Les moyens de rappel en traction peuvent comprendre un ressort de traction, par exemple un ressort métallique de traction.For example, the elastically
De préférence, l'une parmi les première et deuxième parties de raccordement 8, 9 comprend une sangle 11 dont au moins une section 110 est en matériau élastomère. En d'autres termes, au moins une section 110 de la sangle 11 correspond à la portion 10 déformable élastiquement. De façon générale, au moins une section 110 de la sangle 11 est déformable élastiquement. La section 110 peut être l'ensemble de la sangle 11, ou une partie de la sangle 11. La sangle 11 peut comprendre plusieurs sections 110 déformables élastiquement. La section 110 peut être réalisée en caoutchouc ou en élastomère thermoplastique, par exemple un élastomère thermoplastique à base de polyuréthane.Preferably, one of the first and
Par exemple, l'autre parmi les première et deuxième parties de raccordement 9, 8 comprend un doigt 12, et la sangle 11 comprend un trou traversant 13 dans lequel est inséré le doigt 12 dans la configuration verrouillée V. Le doigt 12 peut comprendre un tronc 14 et une tête 15 située à une extrémité distale du tronc 14. Dans ce cas, l'insertion ou le retrait du doigt 12 relativement au trou traversant 13 engendre une déformation élastique d'au moins une section 110 de la sangle 11.For example, the other of the first and
Selon un mode de réalisation, illustré aux
Avantageusement, on peut prévoir une butée d'arrêt, non illustrée à des fins de simplification, sur la coque 2 et destinée à coopérer avec la mentonnière 3 dans la position relevée R, afin d'arrêter le déplacement de la mentonnière 3. La butée d'arrêt permet de maitriser la position de la première partie de raccordement 8 vis-à-vis de la position de la deuxième partie de raccordement 9, lorsque la mentonnière 3 est dans la position relevée R, afin de faciliter l'attachement de la première partie de raccordement 8 à la deuxième partie de raccordement 9.Advantageously, a stop stop can be provided, not shown for simplification purposes, on the
De préférence, la sangle 11 appartient à la première partie de raccordement 8.Preferably, the
Sur la
Avantageusement, la sangle 11 est montée de manière amovible sur l'une au moins parmi la mentonnière 3 et la coque 2. Dans ce cas, la sangle 11 peut être retirée du casque, pour être rangée lorsque l'utilisateur souhaite utiliser la mentonnière 3 dans la configuration abaissée A, afin notamment d'alléger le casque 1.Advantageously, the
Selon un autre mode de réalisation, la sangle 11 est montée mobile sur l'une au moins parmi la mentonnière 3 et la coque 2. En outre, la sangle 11 peut être montée à la fois mobile et amovible sur l'une au moins parmi la mentonnière 3 et la coque 2. La sangle 11 peut être montée mobile en rotation autour d'un axe principal 19. Par exemple, le casque 1 comprend un rivet 30 pour monter la sangle 11 sur la mentonnière 3 et mobile en rotation autour de l'axe principal 19. En particulier, la sangle 11 est mobile entre une position inactive S1, illustrée à la
Selon un autre mode de réalisation, illustré aux
Selon d'autres mode de réalisation, illustrés aux
Le casque 1 peut en outre comprendre au moins un système de verrouillage supplémentaire 43 configuré pour verrouiller la mentonnière 3 relativement à la coque 2 dans une position intermédiaire, non représentée à des fins de simplification, entre la position abaissée A et la position relevée R. Plus particulièrement le système de verrouillage supplémentaire 43 comprend une troisième partie de raccordement 44 montée sur la coque 2 et configurée pour coopérer avec la première partie de raccordement 8 montée sur la mentonnière 3.The
Le casque qui vient d'être décrit est simple à utiliser, particulièrement léger, et permet une conduite en toute sécurité quelles que soient les différentes positions de la mentonnière.The helmet which has just been described is simple to use, particularly light, and allows driving in complete safety whatever the different positions of the chin guard.
Claims (15)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2209451A FR3139703A1 (en) | 2022-09-19 | 2022-09-19 | Safety helmet |
Publications (1)
Publication Number | Publication Date |
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EP4338635A1 true EP4338635A1 (en) | 2024-03-20 |
Family
ID=85036997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP23197976.6A Pending EP4338635A1 (en) | 2022-09-19 | 2023-09-18 | Protective helmet with movable chin guard |
Country Status (2)
Country | Link |
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EP (1) | EP4338635A1 (en) |
FR (1) | FR3139703A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2784553A1 (en) | 1998-10-15 | 2000-04-21 | Motive | SAFETY HELMET |
US6834398B1 (en) * | 2003-11-26 | 2004-12-28 | Randy Martinez | Helmet |
EP2816917B1 (en) * | 2011-12-22 | 2016-05-18 | CI.Erre.E. S.R.L | Helmet with removable chin guard |
-
2022
- 2022-09-19 FR FR2209451A patent/FR3139703A1/en active Pending
-
2023
- 2023-09-18 EP EP23197976.6A patent/EP4338635A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2784553A1 (en) | 1998-10-15 | 2000-04-21 | Motive | SAFETY HELMET |
US6834398B1 (en) * | 2003-11-26 | 2004-12-28 | Randy Martinez | Helmet |
EP2816917B1 (en) * | 2011-12-22 | 2016-05-18 | CI.Erre.E. S.R.L | Helmet with removable chin guard |
Also Published As
Publication number | Publication date |
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FR3139703A1 (en) | 2024-03-22 |
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