FR3111054A1 - REMOVABLE DEVICE FOR PROTECTIVE HELMETS - Google Patents

Abstract

The invention relates to a removable device (100) for a helmet comprising a protective casing (110) comprising a front face (114) and a rear face (113) intended to come into contact with an external surface of the helmet. a helmet by means of a mounting interface (210), the mounting interface (210) being configured to be secured to said helmet, and to cooperate with a magnetic source (220b), made in the casing of protection (110), to ensure a removable attachment by magnetic effect of said device to the helmet, the mounting interface (210) having at least one tooth (204), said tooth (204) cooperating with a housing (205) provided at the level of said rear face (113) of the protective casing (110), said tooth (204) and said housing (205) being configured to form a first stop, called normal stop, limiting the relative movements of said protective casing (110) according to a first dir ection (Y), called normal direction, when the device (100) is secured by magnetic effect to the mounting interface (210). Abstract Figure: Figure 4.

Description

REMOVABLE DEVICE FOR SAFETY HELMET

TECHNICAL FIELD OF THE INVENTION

The technical field of the invention is that of removable devices for protective helmets and more particularly that of removable lighting devices for protective helmets.

The invention relates more particularly to a removable device for a protective helmet, and in particular a removable lighting device for a protective helmet.

The invention also relates to means for fixing the device making it possible to make the device removable and positionable on a protective helmet.

TECHNICAL BACKGROUND

In the context of many activities, or many urban journeys, the helmet, strongly recommended or even mandatory for the user, may include a device, for example an on-board camera or even a lighting device making it possible to increase the visibility of the wearer. towards other road users.

These devices can be integrated from the design of the helmet, or even added by the user via the use of fastening means.

There are many devices that can be attached and fixed, for example, to a bicycle frame or to a protective helmet that does not specifically have a location provided for this purpose.

Generally, these devices are delivered with fastening means making it possible to permanently or even removably attach the devices to a protective helmet.

An advantage of removable fastening means is to be able to easily separate the device in order to position it in another place, for another use, for example to position it on the frame of a bicycle, on clothing, etc.

However, the removable fastening means are often bulky, consequently increasing the overall size of the device, whether it is mounted on a helmet or on another element: clothing, bag or even the frame of a bicycle. In particular, they are too thick making the devices protrude too much with respect to the external surface of the protective helmet.

In addition, given the mode of use of this type of portable device, the removable fastening means must be capable of ensuring secure retention of the device, whatever the conditions of use, or whatever the movements of the device. the user.

To ensure this secure hold and thus prevent the device from inadvertently detaching from the support on which it is hung, the removable fastening means generally have complicated kinematics or which require a certain force to achieve the coupling or the decoupling of the various elements. of the fixing device, which can be unpleasant and even problematic, especially in winter when the user is wearing gloves, which limits the grip strength and the ease of handling.

Thus, it is not uncommon for the user to leave the device in position given the difficulty in uncoupling it from the support.

In this context, the invention aims to propose a removable device for a protective helmet making it possible to solve the drawbacks of the state of the art.

To this end, the invention relates to a removable device for a helmet comprising a protective casing comprising a front face and a rear face intended to come into contact with an external surface of a helmet via a mounting interface, the mounting interface being configured to be fastened to the helmet, and to cooperate with a magnetic source, made in the protective casing, to ensure removable fastening by magnetic effect of said lighting device to the helmet, the interface of assembly having at least one tooth, said tooth cooperating with a housing provided at the level of said rear face of the protective casing, said tooth and said housing being configured to form a first stop, called normal stop, limiting the relative movements of said protective casing in a first direction, called the normal direction, perpendicular to the said rear face, when the lighting device is attached by effect t mounting interface.

• ladite dent et ledit logement sont configurés pour former une deuxième butée, dite butée verticale, limitant les déplacements relatifs dudit boîtier de protection selon une deuxième direction, dite direction verticale, perpendiculaire à la direction normale, lorsque le dispositif d’éclairage est solidaire par effet magnétique de l’interface de montage ;
• ladite dent et ledit logement sont configurés pour former un moyen anti-rotation dudit dispositif d’éclairage autour de ladite direction normale lorsque le dispositif d’éclairage est solidaire par effet magnétique de l’interface de montage ;
• ladite dent présente une inclinaison ou un décalage par rapport à l’interface de montage ;
• le boîtier de protection présente au niveau de sa face arrière une cavité délimitée par une bordure périphérique faisant saillie par rapport à ladite cavité, la cavité présentant un fond ;
• le logement est délimité par une première portion faisant saillie par rapport au fond de la cavité et par une deuxième portion sensiblement perpendiculaire à la première portion, et sensiblement parallèle au fond de la cavité ;
• le fond de ladite cavité présente au moins une ouverture en vis-à-vis de la deuxième portion ;
• la bordure périphérique est configurée pour former un moyen d’indexation facilitant le positionnement dudit boîtier de protection sur ladite interface de montage ;
• ledit logement est ménagé au niveau d’une partie supérieure de ladite bordure périphérique ;
• ladite cavité est configurée pour recevoir et intégrer, au moins partiellement, ladite interface de montage ;
• ladite cavité présente une forme dissymétrique ;
• ladite interface de montage présente au moins deux dents et ledit boîtier de protection présente au moins deux logements ;
• l’interface de montage comporte au moins une portion intégrant des particules de matériau métallique et/ou de matériau magnétique ;
• l’interface de montage comporte une plaque métallique ;
• l’interface de montage comporte un élément adhésif configuré pour assurer un collage de l’interface de montage sur une surface extérieure du casque ;
• ladite source magnétique comporte au moins un aimant permanent ;
• le dispositif est un dispositif d’éclairage.

In addition to the characteristics mentioned in the previous paragraph, the device according to the invention may have one or more additional characteristics among the following, considered individually or in all technically possible combinations:

• said tooth and said housing are configured to form a second stop, called vertical stop, limiting the relative displacements of said protective casing in a second direction, called vertical direction, perpendicular to the normal direction, when the lighting device is integral by effect magnetic mounting interface;
• said tooth and said housing are configured to form an anti-rotation means of said lighting device around said normal direction when the lighting device is secured by magnetic effect to the mounting interface;
• said tooth has an inclination or an offset relative to the mounting interface;
• the protective casing has at its rear face a cavity delimited by a peripheral edge projecting with respect to said cavity, the cavity having a bottom;
• the housing is delimited by a first portion projecting from the bottom of the cavity and by a second portion substantially perpendicular to the first portion, and substantially parallel to the bottom of the cavity;
• the bottom of said cavity has at least one opening facing the second portion;
• the peripheral border is configured to form an indexing means facilitating the positioning of said protective casing on said mounting interface;
• said housing is formed at an upper part of said peripheral edge;
• said cavity is configured to receive and integrate, at least partially, said mounting interface;
• said cavity has an asymmetrical shape;
• said mounting interface has at least two teeth and said protective casing has at least two housings;
• the assembly interface comprises at least one portion integrating particles of metallic material and/or of magnetic material;
• the mounting interface comprises a metal plate;
• the mounting interface comprises an adhesive element configured to ensure bonding of the mounting interface to an outer surface of the helmet;
• said magnetic source comprises at least one permanent magnet;
• the device is a lighting device.

• le boîtier de protection présente une forme générale courbe et intégrant :
  • des moyens de stockage d’une énergie électrique ;
  • un élément opto-électronique capable d’émettre de la lumière lorsqu’il est parcouru par un courant électrique ;
  • un module de pilotage pilotant ledit élément opto-électronique et alimenté par lesdits moyens de stockage d’une énergie électrique ;
  • un circuit imprimé reliant électriquement ledit élément opto-électronique et ledit module de pilotage ;
  • ledit circuit imprimé comportant une portion centrale positionnée dans une portion centrale dudit boîtier de protection, ledit élément opto-électronique et ledit module de pilotage étant raccordés au circuit imprimé au niveau de ladite portion centrale, les moyens de stockage d’une énergie électrique comportant une première unité de stockage d’une énergie électrique et une deuxième unité de stockage d’une énergie électrique, ladite première unité de stockage et ladite deuxième unité de stockage étant localisées de part et d’autre de la portion centrale du circuit imprimé.
• ledit élément opto-électronique comporte une première série de diodes électroluminescentes et une deuxième série de diodes électroluminescentes et ledit circuit imprimé comporte deux portions d’extrémité, ladite première série de diodes électroluminescentes étant localisée au niveau de la portion centrale du circuit imprimé et ladite deuxième série de diodes électroluminescentes étant localisée au niveau des portions d’extrémité du circuit imprimé. Ainsi, les séries de diodes électroluminescentes ne sont donc pas situées au niveau des moyens de stockage. Or, comme les moyens de stockage sont les éléments les plus volumineux dans le dispositif d’éclairage, l’épaisseur du dispositif d’éclairage est déterminée par l’épaisseur au niveau des moyens de stockage. Cette disposition des série de diodes électroluminescentes permet donc de ne pas augmenter davantage l’épaisseur du dispositif d’éclairage et ainsi d’assurer une meilleure protection en cas de chute, comme expliqué précédemment ;
• les diodes électroluminescentes de ladite première série de diodes électroluminescentes présentent une lumière d’émission différente de la lumière d’émission des diodes électroluminescentes de la deuxième série de diodes électroluminescentes ;
• chaque unité de stockage d’une énergie électrique est localisée entre la portion centrale et une portion d’extrémité du circuit imprimé ;
• les portions d’extrémité du circuit imprimé sont ménagées aux extrémités du boîtier de protection ;
• au moins une partie des diodes électroluminescentes de ladite première série de diodes électroluminescentes et/ou au moins une partie des diodes électroluminescentes de ladite deuxième série de diodes électroluminescentes sont positionnées en dessous et/ou au-dessus de chaque unité de stockage ;
• chaque unité de stockage d’une énergie électrique est raccordée électriquement à la portion centrale du circuit imprimé ;
• chaque portion d’extrémité est reliée à la portion centrale par un conducteur flexible ;
• ledit circuit imprimé est un circuit imprimé flexible rigide, ladite portion centrale étant un circuit imprimé rigide et lesdites portions d’extrémité étant des circuits imprimés flexibles raccordées électriquement à la portion centrale ;
• le dispositif d’éclairage comporte des moyens de fixation comportant une première partie configurée pour être solidarisée sur un casque et une deuxième partie solidaire dudit boîtier de protection, la première partie et la deuxième partie étant configurées pour coopérer et former une liaison amovible.

In addition to the characteristics mentioned in the previous paragraph, the device according to the invention is a lighting device which may have one or more additional characteristics among the following, considered individually or in all technically possible combinations:

• the protective case has a generally curved shape and incorporates:
  • means for storing electrical energy;
  • an opto-electronic element capable of emitting light when an electric current passes through it;
  • a control module controlling said opto-electronic element and supplied by said means for storing electrical energy;
  • a printed circuit electrically connecting said opto-electronic element and said control module;
  • said printed circuit comprising a central portion positioned in a central portion of said protective casing, said opto-electronic element and said control module being connected to the printed circuit at said central portion, the means for storing electrical energy comprising a first electrical energy storage unit and a second electrical energy storage unit, said first storage unit and said second storage unit being located on either side of the central portion of the printed circuit.
• said opto-electronic element comprises a first series of light-emitting diodes and a second series of light-emitting diodes and said printed circuit has two end portions, said first series of light-emitting diodes being located at the level of the central portion of the printed circuit and said second series of light-emitting diodes being located at the level of the end portions of the printed circuit. Thus, the series of light-emitting diodes are therefore not located at the level of the storage means. Now, as the storage means are the bulkiest elements in the lighting device, the thickness of the lighting device is determined by the thickness at the level of the storage means. This arrangement of the series of light-emitting diodes therefore makes it possible not to further increase the thickness of the lighting device and thus to ensure better protection in the event of a fall, as explained previously;
• the light-emitting diodes of said first series of light-emitting diodes have an emission light different from the emission light of the light-emitting diodes of the second series of light-emitting diodes;
• each electrical energy storage unit is located between the central portion and an end portion of the printed circuit;
• the end portions of the printed circuit are provided at the ends of the protective casing;
• at least part of the light-emitting diodes of said first series of light-emitting diodes and/or at least part of the light-emitting diodes of said second series of light-emitting diodes are positioned below and/or above each storage unit;
• each electrical energy storage unit is electrically connected to the central portion of the printed circuit;
• each end portion is connected to the central portion by a flexible conductor;
• said printed circuit is a rigid flexible printed circuit, said central portion being a rigid printed circuit and said end portions being flexible printed circuits electrically connected to the central portion;
• the lighting device comprises fastening means comprising a first part configured to be secured to a helmet and a second part secured to said protective casing, the first part and the second part being configured to cooperate and form a removable connection.

The invention also relates to a lighting system comprising a lighting device according to the invention and control means cooperating with the control module for activating or deactivating said light-emitting diodes of the second series of light-emitting diodes, said means of controls being a remote control or an accelerometer, or a gyrometer or a device with touch control or a device with voice control.

The invention also relates to a protective helmet comprising a removable device according to the invention.

The invention and its various applications will be better understood on reading the following description and examining the accompanying figures.

BRIEF DESCRIPTION OF FIGURES

The figures are presented for information only and in no way limit the invention.

Figure 1 is a perspective view of an embodiment of a device according to the invention.

Figure 2 is an exploded view of the embodiment of the device according to the invention illustrated in Figure 1.

Figure 3 is a sectional top view illustrating the interior of the device according to the invention illustrated in Figure 1.

Figure 4 is a perspective view illustrating the rear part of the device according to the invention illustrated in Figure 1 before mounting on a mounting interface.

Figure 5 is a perspective view illustrating the rear part of the device according to the invention shown in Figure 1 during mounting on the mounting interface shown in Figure 4.

Figure 6 is a perspective view illustrating the rear part of the device according to the invention shown in Figure 1 after mounting on the mounting interface shown in Figure 4.

Figure 7 is a sectional top view illustrating the interior of another embodiment of the device according to the invention.

Figure 8 is a perspective view illustrating the rear part of the device according to the invention illustrated in Figure 7.

Figure 9 is a schematic representation of a protective helmet on which the device according to the invention is mounted.

Figure 10 is a perspective view illustrating the front part of the rear shell of the device according to the invention illustrated in Figure 1.

DETAILED DESCRIPTION

In the remainder of the description, the case is taken where the device according to the invention is a lighting device. However, the device according to the invention could not be a lighting device, but for example an on-board camera.

There illustrates, in a perspective view, the front or outer face (ie the face most visible to road users) of an embodiment of a lighting device 100 according to the invention.

There illustrates, an exploded view of the lighting device 100 according to the invention illustrated in [fig 1], making it possible to visualize all the elements of the lighting device 100.

There is a sectional view of the lighting device 100 according to the invention illustrated in [fig 1], making it possible to appreciate the curvature of the lighting device 100 as well as the reduced size obtained thanks to the particular layout of the various elements of the lighting device 100.

There illustrates, in a perspective view, the rear or internal face (ie the face intended to face the surface of a protective helmet) of the lighting device 100 according to the invention illustrated in [fig 1].

In general, reference will be made to the four figures previously described for the various elements described below.

Unless specified otherwise, the same element appearing in different figures has a single reference.

The lighting device 100 according to the invention comprises a protective casing 110, for example made of plastic material, forming the external part of the lighting device 100.

The protective case 110 comprises for example two half-shells: a first front shell 111 and a second rear shell 112.

There illustrates, in a perspective view, the front or outer face of the rear shell 112 of the lighting device 100 according to the invention illustrated in [fig 1].

The two half-shells 111, 112 are configured to cooperate and thus reconstitute a hollow shell delimiting an internal space suitable for integrating all the different elements necessary for the operation of the lighting device 100.

The two half-shells 111, 112 are for example configured to fit together and to be held together. To this end, the half-shells 111, 112 may comprise indexing means, such as for example a peripheral groove configured to cooperate with a peripheral tongue, so as to ensure the correct positioning of the two half-shells with respect to each other. to the other. A seal (not shown) can also be positioned at the interface of the two half-shells 111, 112 so as to seal the protective casing 110 vis-à-vis the outside.

The two half-shells 111, 112 further comprise means for holding and assembling the two half-shells 111, 112. The holding means ensuring the assembly of the two half-shells are ad-hoc means allowing to hold the two half-shells together, for example by clipping, screwing, ultrasonic welding, interlocking, etc.

In the exemplary embodiment illustrated in and in [fig 4], the two half-shells 111, 112 are held together by screwing. The rear half-shell 112 has holes allowing the passage of screws adapted to cooperate with bores made at the level of the front half-shell 111.

According to another exemplary embodiment, the protective casing 110 may be formed by a single main hollow shell closed by a removable bottom, of small thickness, via known means for this purpose, for example by clipping or even screwing. In this exemplary embodiment, the protective casing 110 may also include indexing means for positioning the removable bottom.

The protective casing 110 comprises a rear face 113 intended to come into contact with the external surface of a protective helmet and a front face 114 forming the visible part of the protective casing 110. The rear face 113 is advantageously located at the level of the rear hull 112. The front face 114 is advantageously located at the level of the front hull 111.

There illustrates a protective helmet 10 on which the lighting device 100 according to the invention is mounted.

As illustrated on the , the protective casing 110 has a generally curved shape so as to fit into the curved profile of a protective helmet 10 used in particular for urban and extra-urban travel. The general curvature of the lighting device 100 is more particularly shown in [fig 3].

The front face 114 also has a curved shape, substantially convex, for example parallel to the substantially concave shape of the rear face 113 so as to minimize the thickness and the size of the lighting device 100.

Thus, the thickness of the lighting device 100 is substantially constant.

The protective casing 110 is for example made of polycarbonate or polypropylene to resist external radiation, such as for example ultraviolet (UV), and shocks.

The protective casing 110 can also be made entirely or partially from a flexible material such as, for example, silicone or polypropylene. The use of flexible material, for example at the level of certain specific zones of the protective casing 110, makes it possible to be able to modify the general curvature of the protective casing 110 and thus present a curvature which adapts to the geometry of the protective helmet 10.

The front face 114 of the protective casing 110 advantageously has at least one transparent or translucent part allowing the diffusion of light from the interior of the protective casing 110 to the exterior of the protective casing 110.

The transparent or translucent part is for example made from a transparent or translucent thermoplastic polymer material, such as for example PMMA (for polymethyl methacrylate), silicone or polypropylene for optimal light diffusion.

The protective casing 110 also includes an opening 115, preferably made on one of the sides of the protective casing 110 or else at the level of an upper portion or a lower portion of the protective casing 110, as shown in . This last embodiment advantageously limits the infiltration of rainwater inside the protective casing 110.

The opening 115 advantageously allows access to a connector 160 electrically and physically connected to a printed circuit 150 integrated inside the protective casing 110. The opening 115 can cooperate with a removable cap made of flexible material, for example silicone or TPU, thus ensuring the sealing of the protective case 110 at the level of the opening 115 vis-à-vis the external conditions.

• un élément opto-électronique 120 capable d’émettre de la lumière lorsqu’il est parcouru par un courant électrique ;
• un module de pilotage 130 configuré pour piloter l’élément opto-électronique ;
• des moyens de stockage 140 d’une énergie électrique configurés pour alimenter en énergie électrique le module de pilotage 130 et l’élément opto-électronique 120 ;
• un avertisseur sonore 180.

The lighting device 100 according to the invention further comprises:

• an opto-electronic element 120 capable of emitting light when an electric current passes through it;
• a piloting module 130 configured to pilot the opto-electronic element;
• means 140 for storing electrical energy configured to supply electrical energy to the control module 130 and the opto-electronic element 120;
• a buzzer 180.

The opto-electronic element 120 is for example formed by a plurality of light-emitting diodes 120a, 120b (LED in English for Light-Emitting Diode) which can emit one or more colors. As a variant, the opto-electronic element 120 comprises a liquid crystal screen preferably combined with light-emitting diodes.

The light-emitting diodes 120a, 120b, the driver module 130, the buzzer 180 can be soldered onto the printed circuit 150, for example using the surface-mounted component technique (SMD) or using pins.

In the exemplary embodiment illustrated in , the lighting device 100 comprises a first series of light-emitting diodes referenced 120a preferentially emitting red-colored light, and a second series of light-emitting diodes referenced 120b preferentially emitting yellow or orange-colored light.

The light-emitting diodes 120b capable of emitting an orange or yellow color are advantageously positioned at the level of the lateral ends of the lighting device 100 so as to be able to indicate the direction (left or right) that the user of the lighting device 100 will take, in particular in combination with a "flashing" control mode of the light-emitting diodes 120b via the control module 130.

The control module 130 is for example an intelligent device configured to allow control of the lighting power of the opto-electronic element 120, the color or colors of the lighting of the opto-electronic element 120 , in particular with the use of light-emitting diodes having several emission colors, the lighting mode (continuous or flashing), etc.

All the elements (opto-electronic element 120, control module 130) are electrically and physically connected to a printed circuit 150.

The printed circuit 150 has a central portion 151 and two end portions 152 located on either side of the central portion 151 and electrically connected to the central portion 151.

• le module de pilotage 130,
• une interface Homme-Machine 170, par exemple un commutateur tactile ou un interrupteur de type bouton-poussoir, permettant à un utilisateur d’allumer ou d’éteindre le dispositif d’éclairage 100, ou encore de choisir un mode de fonctionnement dudit dispositif d’éclairage 100 ;
• le connecteur 160 permettant le branchement d’une alimentation ou d’un dispositif de recharge des moyens de stockage 140 d’une énergie électrique ;
• une première série de diodes électroluminescentes 120a, émettant par exemple une lumière rouge.

The central portion 151 of the printed circuit 150 advantageously comprises:

• the control module 130,
• a Man-Machine interface 170, for example a tactile switch or a push-button type switch, allowing a user to switch the lighting device 100 on or off, or even to choose an operating mode of said lighting device lighting 100;
• the connector 160 allowing the connection of a power supply or of a device for recharging the means 140 for storing electrical energy;
• a first series of light-emitting diodes 120a, for example emitting red light.

The end portions 152, preferably of smaller dimensions than the central portion 151, advantageously comprise at least one light-emitting diode of a second series 120b, emitting for example an orange or yellow light.

According to a first embodiment, the central portion 151 as well as the end portions 152 of the printed circuit 150 are rigid, that is to say made from a plate of rigid insulating material, for example epoxy resin . The end portions 152 are then electrically connected to the central portion 151 via electrical conductors, for example by conductive cables or multi-strand layers. The electrical conductors, preferably flexible, being thin, they can be superimposed on the thickness of the electrical energy storage means 140 without substantially increasing the overall thickness of the lighting device 100. The electrical conductors can also run above or below the storage means 140, further reducing the thickness.

According to a second variant embodiment, the printed circuit 150 is a rigid flexible printed circuit, also called "rigid-flex", forming a combination of "standard" rigid printed circuits and flexible printed circuits having the advantages of each and providing a solution. advantageous in response to a need for space and reliability. Flexible printed circuits can be made from a thin plastic substrate, of the high performance type, such as polyimide or polyetheretherketone (PEEK).

Thus, in this second variant embodiment, the printed circuit 150 comprises rigid portions (the central portion 151 and the end portions 152) on which the various electronic components are secured, the various portions being electrically connected by flexible circuits.

This second exemplary embodiment makes it possible to obtain better reliability compared to the first exemplary embodiment, described above, in particular by eliminating the connection between the different portions and therefore the additional welding steps.

In addition, the electronic components are mounted on rigid supports, which ensures greater reliability over time of the electrical connections.

This second exemplary embodiment also makes it possible to reduce manufacturing costs by simplifying the assembly steps.

In a third exemplary embodiment, the central portion 151 is rigid and the end portions 152 are flexible and directly connected, or welded, to the central portion 151. The end portions 152 being thin, they can overlap to the electrical energy storage means 140 without substantially increasing the thickness of the lighting device 100. In this embodiment, the advantages of robustness and compactness are combined. As illustrated on the , the end portions 152 are advantageously elongated so that the light-emitting diodes 120b are positioned at the end of the storage units 141, 142.

In a fourth exemplary embodiment, the printed circuit 150 is entirely a flexible circuit, which makes it possible to further optimize the compactness of the electronic architecture of the lighting device 100 and also to reduce the number of welds.

According to another variant, the printed circuit 150 does not comprise end portions 152 but only a central portion 151. In this variant embodiment, the opto-electronic element 120, advantageously connected at the level of the central portion 151, by example by welding, can be formed by a single series of light-emitting diodes referenced 120a emitting, preferentially, a light of red color. The opto-electronic element 120 can also be formed by the association of a first series of light-emitting diodes referenced 120a preferentially emitting red-colored light, and a second series of light-emitting diodes referenced 120b preferentially emitting red light. yellow or orange, the second series of light-emitting diodes referenced 120b being advantageously located at the lateral ends of the central portion 151 of the printed circuit 150.

The electrical energy storage means 140 are advantageously formed by the association of several electrical energy storage units 141, 142, for example a first storage unit 141 and a second storage unit 142, physically independent of each other. on the other and electrically connected to the electronic components, for example via the central portion 151 of the printed circuit 150, preferably by means of welds or electrical connectors.

The storage units 141, 142 of electrical energy are, for example, batteries, cells, or even button cells, which may or may not be rechargeable. The storage units 141, 142 can be substantially parallelepipedic or cylindrical in shape.

According to an exemplary embodiment in which the storage units 141, 142 are not rechargeable, the protective casing 110 advantageously comprises removable covers making it possible to easily open and close the protective casing 110. Thus, it is possible to have quick and easy access, without the use of a specific tool, to the area of the storage units 141, 142. The removable covers can for example be removed manually by a user and held in position on the protective casing 110 for example by a system of clips.

Advantageously, the storage units 141, 142 are batteries which can be recharged by connecting an external power supply to the connector 160. The management of the power supply and the recharging of the storage units 141, 142 are produced and controlled by the control module 130.

The connector 160 is for example a Micro USB port or a USB Type-C port.

The storage units 141, 142 are advantageously distributed on either side of the central portion 151 of the printed circuit 150 of the lighting device 100.

Advantageously, the storage units 141, 142 are positioned in a region close to the lateral ends of the protective casing 110 of the lighting device 100.

The storage units 141, 142 are positioned between the central portion 151 and an end portion 152 of the printed circuit 150. Thus, it is possible to optimize the thickness of the internal architecture of the electronic components of the lighting device 100, and therefore minimize the overall thickness of the lighting device 100 because the storage units 141, 142 are located in areas devoid of electronic components.

According to one embodiment, the storage means 140 are formed by more than two storage units, the storage means 140 being distributed over the length of the lighting device 100.

The storage units 141, 142 are electrically connected to the control module 130 via the printed circuit 150, and more particularly via the central portion 151.

The storage units 141, 142 can be lithium accumulators and more particularly lithium-ion accumulators.

The storage units 141, 142 have for example a capacity of 200 mAh for a dimension of 25×20×4 mm.

Thus, for the same electrical energy storage capacity, and the same autonomy as the lighting devices of the state of the art, the lighting device 100 according to the invention proposes to reduce the overall size of the device. 100 by dividing the electric energy storage means into several storage units 141, 142 of smaller dimensions and by distributing the different storage units 141, 142 at different specific places inside the protective casing 110 , preferably without overlapping with other electronic components of the lighting device 100.

The use of several storage units 141, 142 instead of a single storage unit, for example centered in the lighting device 100, makes it possible to reduce the size of each storage unit 141, 142 and to distributing the bulk over the length of the lighting device 100, consequently minimizing the overall thickness of the lighting device 100, compared to the lighting devices of the state of the art. In addition, the use of a single storage unit positioned at one side of the lighting device and a circuit board positioned at the opposite side of the lighting device also makes the lighting device unbalanced. . Thus, it is common to find in state-of-the-art lighting devices that the weight is not balanced and the functions are not symmetrical.

Advantageously, the positioning of the storage units 141, 142 symmetrically with respect to the central portion of the lighting device 100 also makes it possible to balance the weight of the lighting device 100 and also to obtain a symmetrical appearance.

Advantageously, the light-emitting diodes 120a, 120b are positioned on either side of the storage units 141, 142 so that the light-emitting diodes 120b intended to indicate the change of direction of the user are found at the left and right ends of the device. lighting 100. Such positioning thus makes it possible to limit the risk of confusion between the left and right direction indication. Advantageously, the protective case 110 has an elongated shape with respect to its height to clearly distinguish the indication of a left or right direction by the light-emitting diodes 120b by moving them away.

The lighting device 100 has an elongated shape so as to extend over an extended portion at the level of the surface of the protective helmet 10 in particular to improve the lateral visibility of the lighting device 100, and in particular of the indication of direction.

According to another variant, at least a part of the light-emitting diodes 120a and/or 120b are positioned above and/or below the storage units 141, 142 thus minimizing the overall thickness of the lighting device 100. This construction can make it possible not to longitudinally interrupt the light-emitting diodes 120a and/or 120b at the level of the storage units 141, 142. According to this embodiment, the central portion 151 and/or the end portion 152 of the printed circuit can extend above and/or below the storage units 141, 142.

Advantageously, the lighting device 100 comprises a cover positioned between the front half-shell 111 and the printed circuit 150 and/or the storage means 140. Thus, the interior of the lighting device 100 is less visible by transparency of the front half-shell 111. In this case, the cover can be provided with openings to allow the light from the light-emitting diodes 120a, 120b to pass.

The electrical energy storage units 141, 142 are advantageously electrically connected in series or in parallel and controlled by the control module 130.

The buzzer 180 makes it possible in particular to indicate the operation of the light-emitting diodes 120b in flashing mode, or else the navigation between different piloting modes. The emission power of the audible warning device 180 can vary according to the ambient noise so that the user of the lighting device 100 hears it regardless of the external environment.

Advantageously, the buzzer 180 is located in the central part of the lighting device 100, presenting the greatest distance between the printed circuit 150 and the protective casing 110. Thus, it is possible to integrate a buzzer 180 having larger dimensions, and therefore more powerful.

• un module de communication, par exemple de type radio communication, Bluetooth, Wifi, permettant d’appairer par exemple le dispositif d’éclairage 100 avec une télécommande pour contrôler via une Interface Homme/Machine distante le type et/ou le mode d’éclairage du dispositif d’éclairage 100 et notamment indiquer une direction ;
• un accéléromètre de 1 à 3 axes pour la détection des variations de vitesses, par exemple pour détecter une accélération ou une décélération de l’utilisateur et ainsi modifier le type et/ou le mode d’éclairage en conséquence ;
• un gyromètre 3 axes pour la mesure de la vitesse angulaire par exemple pour détecter une chute de l’utilisateur et ainsi modifier le type et/ou le mode d’éclairage en conséquence ;
• des moyens logiciels associés à un microphone configurés pour permettre une reconnaissance vocale et pour contrôler le type et/ou le mode d’éclairage du dispositif d’éclairage 100 ;
• un dispositif de guidage GPS interagissant avec le module de pilotage 130 pour modifier le mode et/ou le type d’éclairage du dispositif d’éclairage 100 et notamment indiquer un changement de direction.

In addition, the lighting device 100 may include:

• a communication module, for example of the radio communication type, Bluetooth, Wifi, making it possible to pair, for example, the lighting device 100 with a remote control to control via a remote Man/Machine Interface the type and/or the mode of lighting of the lighting device 100 and in particular indicate a direction;
• a 1 to 3-axis accelerometer for detecting speed variations, for example to detect acceleration or deceleration of the user and thus modify the type and/or mode of lighting accordingly;
• a 3-axis gyrometer for measuring the angular speed, for example to detect a fall of the user and thus modify the type and/or the lighting mode accordingly;
• software means associated with a microphone configured to allow voice recognition and to control the type and/or the lighting mode of the lighting device 100;
• a GPS guidance device interacting with the piloting module 130 to modify the mode and/or the type of lighting of the lighting device 100 and in particular to indicate a change of direction.

To increase the possibility of variation in curvature of the lighting device 100, the protective casing 110 can also present longitudinally one or more articulation zones acting as articulation to modify the curvature of the lighting device 100 and thus allow it to better match the shape of the protective helmet 10. The articulation zones are zones of variable thickness, and in particular zones have a lower thickness.

There is a cross-sectional view of an embodiment of the lighting device 100 according to the invention, showing zones of articulation.

There illustrates, in a perspective view, the rear or internal face of the lighting device 100 according to the invention, illustrated in [fig 7].

In the exemplary embodiment illustrated in and in [fig 8], the protective casing 110 has two hinge zones located between the various electronic elements integrated inside the protective casing 110. More specifically, each hinge zone is located between a central portion 151 of the printed circuit 150 and a storage unit 141, 142. Each hinge zone consists of a groove 118, which has the consequence that the thickness of the protective casing 110 is reduced at the level of the hinge zones . In this exemplary embodiment, the fastening means are for example a double-sided adhesive bonded to the rear face 113 of the lighting device 100.

The lighting device 100 according to the invention is for example a front or rear lighting device for a protective helmet 10.

For example, when the lighting device 100 is a lighting device intended to be positioned in front of a protective helmet 10, the latter may comprise light-emitting diodes capable of emitting a light different from a red light, for example preferably blue, yellow or even white.

The lighting device 100 also comprises means allowing removable attachment of the protective casing 110 to the protective helmet 10, as illustrated in the .

The fastening means comprise a first part configured to be fastened directly to the protective helmet 10, for example by means of an adhesive interface (for example a double-sided adhesive tape), and a second part configured to be fastened to the casing protection 110 of the lighting device 100, for example by means of a second adhesive interface (for example a double-sided adhesive tape), the two parts being configured to cooperate so as to produce a removable mechanical and/or magnetic connection.

In the exemplary embodiment illustrated in the preceding figures, and more particularly in the and in [fig 2], the fixing means 200 are formed by the combination of a mounting interface 210 configured to be secured directly to the support, for example a protective helmet 10, and locking means 220a, integral with the protective casing 110, configured to ensure a removable mechanical connection and means configured to ensure a removable magnetic connection of the lighting device 100 on the mounting interface 210.

There is a perspective view illustrating the rear part of the lighting device 100 according to the invention illustrated in [fig 1] during the mounting of the lighting device 100 on the mounting interface 210 illustrated in [fig 4].

There is a perspective view illustrating the rear part of the lighting device 100 according to the invention illustrated in [fig 1] after the lighting device 100 has been mounted on the mounting interface 210 illustrated in [fig 4].

The assembly interface 210 has at least one portion integrating particles of metallic material and/or of magnetic material.

The mounting interface 210 is secured to the protective helmet 10 by the use of an adhesive element 203, for example by depositing a double-sided adhesive layer, positioned on one face of the mounting interface 210 intended to face the surface of the protective helmet 10.

The mounting interface 210 is for example a metal plate. The mounting interface 210 is thus thin, making the fixing means 200 less bulky.

According to an alternative embodiment, the mounting interface 210 is made of a non-metallic and/or non-magnetic material and has portions integrating particles of metallic material and/or magnetic material such as magnets.

The means configured to ensure a removable magnetic connection of the lighting device 100 on the mounting interface 210 are formed by a magnetic source 220b housed inside the protective casing 110.

By way of example, the magnetic source 220b comprises one or more permanent magnets 220b, housed in the protective casing 110, preferably close to the rear face 113.

The magnetic source 220b in combination with the assembly interface 210 having portions of metallic and/or magnetic particles makes it possible to produce a removable connection of the magnetic type. Thus, the user can position or remove the lighting device 100 easily and quickly from the mounting interface 210 and therefore from the protective helmet 10.

However, the magnetic source 220b can be formed by a single permanent magnet 220b so as to reduce the manufacturing costs or the size of the lighting device 100 or even by a plurality of permanent magnets 220b so as to increase the magnetic power. of the removable connection and/or to distribute the magnetic forces over a larger surface.

Advantageously, the permanent magnet or magnets 220b are positioned, at least in part, at the rear of the printed circuit 150, that is to say between the rear half-shell 112 and the printed circuit 150.

Advantageously, the permanent magnet(s) 220b are positioned, at least in part, at the rear of the storage means 140, that is to say between the rear half-shell 112 and the storage means 140.

Thus, the permanent magnet(s) 220b are positioned as close as possible to the rear face 113 of the protective casing 110 so as to optimize the force of attraction with the metallic or magnetic portions of the mounting interface 210.

The number as well as the dimensions of the permanent magnets 220b are determined so as to exert a sufficient force of attraction to hold the lighting device 100 in place on a protective helmet 10, whatever the conditions of use, while allowing easy decoupling for the user.

According to another variant, the magnetic source is located on the assembly interface 210 and the protective casing 110 comprises at least one portion integrating particles of metallic material and/or of magnetic material.

As shown in illustrating more particularly the rear face of the lighting device 100, the rear face 113 of the protective casing 110 has a cavity 116, delimited by a peripheral border 117, making it possible to introduce and at least partially house the mounting interface 210 .

By way of example, the cavity 116 can be recessed with respect to the rear face 113. In this case, the depth of the cavity 116 is advantageously identical to the thickness of the mounting interface 210 provided with the adhesive element 203 so that the rear face 113 of the protective casing 110 matches the surface of the protective helmet 10 when the lighting device 100 according to the invention is in position on a protective helmet 10. It is preferable to provide a slight clearance between the rear face 113 of the protective casing 110 and the surface of the protective helmet 10 to be sure that contact is made between the cavity 116 and the mounting interface 210.

According to the embodiment illustrated by FIGS. 1 to 6, the cavity 116 is at the level of the rear face 113. Thus, the cavity 116 is then delimited only by the peripheral border 117. The peripheral border 117 forms a relief with respect to the rear face 113 and has a height advantageously identical to or slightly less than the thickness of the mounting interface 210 provided with the adhesive element 203 in order to leave a slight clearance between the peripheral edge 117 and the external surface of the protective helmet 10 when the lighting device 100 according to the invention is in position on a protective helmet 10.

Thus, the cavity 116 is delimited by a peripheral border 117 forming a relief with respect to the bottom of the cavity 116, and/or with respect to the rear face 113 of the protective casing 110. The peripheral border 117 advantageously forms a means of indexing making it possible to facilitate the positioning of the protective casing 110 around the mounting interface 210 and/or a peripheral stop making it possible to block the movements of the protective casing 110 with respect to the mounting interface 210 (while allowing a clearance disassembly).

The peripheral border 117 is configured to block the movements of the protective casing 110 with respect to the mounting interface 210, in the vertical direction Z and the direction X tangent to the rear face 113, in order to prevent the device from lighting 100 unhooks inadvertently from the protective helmet 10 during an urban or extra-urban trip. Indeed, the magnetic connection exerts a holding force in the direction Y normal to the rear face 113, but the contact adhesion force between the mounting interface 210 and the rear face 113 of the protective case 110 is insufficient. to hold it in position along the vertical Z and tangent X directions.

The cavity 116 advantageously has an asymmetrical shape so as to avoid mounting the lighting device 100 in a bad position. In particular, this physical keying limits the risk of inverting the left and right direction indicators by positioning the lighting device in the opposite direction with respect to the mounting interface 210.

The locking means 220a, integral with the protective casing 110, configured by ensuring a removable mechanical connection, make it possible to carry out an additional locking and to guarantee the maintenance in position of the protective casing 110, by magnetic effect, during normal use. of the protective helmet 10 on the move. Thus, the fixing means 200 advantageously combine a connection by magnetic effect as well as a mechanical blocking blocking certain movements of the lighting device 100 when the latter is in position around the mounting interface 210 and thus avoiding decoupling and the loss of the lighting device 100.

Advantageously, the blocking means 220a make it possible to block the rotations of the protective casing 110 around the tangent axis X substantially parallel to the contact surface of the protective casing 110 with the protective helmet 10.

To this end, the locking means 220a comprise at least one housing 205 provided in an upper part 117a of the peripheral edge 117 and at least one tooth 204 forming an extension of the body of the assembly interface 210, advantageously at the level of the upper part of the mounting interface 210. The tooth 204 has a thickness adapted to fit inside the space delimited by the housing 205.

As illustrated on the and [fig 6], the housing 205 is delimited by a first portion 206 projecting from the bottom of the cavity 116 and by a second portion 207 substantially perpendicular to the first portion 206, and substantially parallel to the bottom of the cavity 116 The two portions 206, 207 thus form a material return in the form of a hook.

The tooth 204 of the assembly interface 210 is inserted inside the housing 205, that is to say in the space delimited by the two portions 206, 207.

The cavity 116 may include openings 221 in the zone located opposite the second portions 207 as illustrated in FIG. correctly the protective casing 110 on the mounting interface 210. According to this embodiment, the openings 221 are advantageously located outside the interlocking zone of the two half-shells 111,112 in order to ensure the sealing of the protective case 110.

To position the lighting device 100 on the mounting interface 210, the lighting device 100 is brought close to the surface of the protective helmet 10 on which the mounting interface 210 is positioned, the lighting device 100 is brought with an inclination with respect to a vertical plane so as to present the tooth 204 close to the housing 205. Then by rotation of the lighting device 100 around the tangent axis X, the lighting device 100 is folded around of the assembly interface 210, so that the latter is inserted into the cavity 116 and that the tooth 204 in the upper part is inserted into the space delimited by the housing 205, having the effect of blocking the movements of tooth 204 along the normal direction Y.

The rotation around the tangent axis X and the positioning of the lighting device 100 on the protective helmet 10 are facilitated by the attraction between the magnets of the magnetic source 220b and the mounting interface 210 thus attracting the housing of protection 110 against the mounting interface 210 as well as by the peripheral border 117 which makes it possible to ensure the correct positioning of the mounting interface 210 in the cavity 116.

Once in position, the housing 205 is configured to form a first normal stop to limit, or even block (while allowing assembly play), the relative movements of the upper part of the protective casing 110 in the normal direction Y substantially perpendicular to the surface of the protective helmet 10, which has the effect of blocking the rotations of the protective casing 110 around the tangent axis X, substantially parallel to the surface of the protective helmet 10. Thus, the housing 205 and the tooth 204 make it possible to prevent the detachment of the protective casing 110 from the mounting interface 210 at the level of the upper part. The lighting device 100 being located at the front of the housing 205, the housing 205 blocks in rotation along the tangent axis X the forces due to gravity and to the accelerations undergone while driving. Indeed, once the protective casing 110 is in position, it is necessary to carry out a particular kinematics, in particular by pivoting the protective casing 110 upwards so as to take off first the lower part of the protective casing 110 from the safety helmet. protection 10. Such a movement not being possible without the intervention of the user, it is ensured that the lighting device 100 remains in position on the protective helmet 10 during use and during a urban or extra-urban travel.

The housing 205 can also be configured to form a second vertical upper stop so as to limit, or even block vertically (while allowing assembly clearance), the movements of the protective casing 110 along the vertical axis Z, in association with the lower part 117d of the peripheral edge 117 which forms a lower vertical stop. This is particularly the case when the housing 205 is hook-shaped.

The blocking of the lateral movements of the lighting device 100 along the tangent axis X is achieved by the thickness of the peripheral border 117 and more particularly by the lateral portions 117b, 117c of the peripheral border 117 which form lateral stops when the protective casing 110 is in position on mounting interface 210. Peripheral edge 117 can thus block relative movements of protective casing 110 with respect to mounting interface 210 along directions normal to direction Y, or tangents to the rear face 113.

The housing 205 as well as the tooth 204 of the mounting interface 210 can extend longitudinally, along the tangent axis X, over a sufficiently large portion to prevent the pivoting of the protective casing 110 with respect to the mounting interface 210 around the normal axis Y. Thus, the possibilities of rolling of the lighting device 100 are avoided or limited.

Advantageously, the peripheral edge 117 has a housing 205 positioned in the center of the upper part 117a of the peripheral edge 117.

Advantageously, the peripheral border 117 has two housings 205 positioned at the ends of the upper part 117a of the peripheral border 117 so as to form two support points and thus block the rotation of the protective casing 110 around the normal axis Y.

In the embodiment illustrated in FIGS. 1 to 6, the protective casing 110 has three housings 205 distributed over the upper part 117a of the peripheral edge 117 and which cooperate with three teeth 204 formed in the upper part of the interface of assembly 210.

Advantageously, the teeth 204 have an inclination or an offset with respect to the surface of the mounting interface 210. This inclination, advantageously, in the direction of the cavity 116, makes it possible to make the errors of securing the lighting device more visible. 100 on the mounting interface 210. Indeed, if the teeth 204 are not inserted into the housings 205, the rear face 113 is sufficiently distant from the mounting interface 210 for the magnetic connection not to take effect, the user thus realizing the mounting of the lighting device 100 in a bad position.

The permanent magnets of the magnetic source 220b can be replaced by a clipping system in the lower part of the cavity 116 or of the protective casing 110 in order to avoid tilting upwards and the lifting of the lighting device 100. In this case, the mounting interface 210 need not be metallic or magnetic.

The lighting device 100 according to the invention may also further comprise attachment means configured to allow attachment, temporary or permanent, to a support, such as a bag, a cap, a hat, clothing, a vehicle motorized or not such as a bicycle, a scooter, a motorcycle. It can also be fixed directly on the head by means of a headband. The fixing means are, for example, a double-sided adhesive tape secured to the rear face 113 of the lighting device 100. The fixing means are, for example, a self-gripping loop and hook type system.

The invention also relates to a protective helmet 10 comprising a lighting device 100 according to the invention secured, via the fixing means, to the surface of the protective helmet 10.

The protective helmet 10 according to the invention is a helmet allowing a user to protect his head during urban or extra-urban travel.

The protective helmet 10 according to the invention is for example a helmet for a motorcycle, scooter, bicycle, scooter, monowheel, skate or skateboard or even for any means of transport requiring head protection.

The protective helmet 10 according to the invention can be personal protective equipment such as a helmet dedicated to the practice of a sports activity or a firefighter's helmet.

Claims (18)

Removable device (100) for a helmet (10) comprising a protective casing (110) comprising a front face (114) and a rear face (113) intended to come into contact with an external surface of a helmet (10) via the intermediary of a mounting interface (210), the mounting interface (210) being configured to be secured to the helmet (10), and to cooperate with a magnetic source (220b), arranged in the protective casing ( 110), to ensure removable attachment by magnetic effect of said device to the helmet (10),
characterized in that the mounting interface (210) has at least one tooth (204), said tooth (204) cooperating with a housing (205) made at the level of said rear face (113) of the protective casing (110) , said tooth (204) and said housing (205) being configured to form a first stop, called normal stop, limiting the relative displacements of said protective casing (110) in a first direction (Y), called normal direction, perpendicular to said rear face (113) when the device (100) is secured by magnetic effect to the mounting interface (210). Removable device (100) for a helmet (10) according to the preceding claim, characterized in that the said tooth (204) and the said housing (205) are configured to form a second stop, called the vertical stop, limiting the relative movements of the said protective casing ( 110) in a second direction (Z), called the vertical direction, perpendicular to the normal direction (Y), when the device (100) is fixed by magnetic effect to the mounting interface (210). Removable device (100) for helmet (10) according to one of the preceding claims, characterized in that the said tooth (204) and the said housing (205) are configured to form an anti-rotation means of the said device (100), around the said normal direction (Y), when the device (100) is secured by magnetic effect to the mounting interface (210). Removable device (100) for a helmet (10) according to one of the preceding claims, characterized in that said tooth (204) has an inclination or an offset with respect to the mounting interface (210). Removable device (100) for helmet (10) according to one of the preceding claims, characterized in that said protective casing (110) has at its rear face (113) a cavity (116) delimited by a peripheral edge (117 ) projecting from said cavity (116), the cavity (116) having a bottom. Removable device (100) for a helmet (10) according to claim 5, characterized in that the housing (205) is delimited by a first portion (206) projecting from the bottom of the cavity (116) and by a second portion (207 ) substantially perpendicular to the first portion (206), and substantially parallel to the bottom of the cavity (116). Removable device (100) for a helmet (10) according to the preceding claim, characterized in that the bottom of the cavity (116) has at least one opening (221) facing the second portion (207). Removable device (100) for a helmet (10) according to the preceding claim, characterized in that the peripheral border (117) is configured to form an indexing means facilitating the positioning of the said protective casing (110) on the said mounting interface (210 ). Removable device (100) for helmet (10) according to one of Claims 5 to 8, characterized in that the said housing (205) is provided at the level of an upper part (117a) of the said peripheral edge (117). Removable device (100) for a helmet according to one of Claims 5 to 9, characterized in that the said cavity (116) is configured to receive and integrate, at least partially, the said mounting interface (210). Removable device (100) for helmet (10) according to one of Claims 5 to 10, characterized in that the said cavity (116) has an asymmetrical shape. Removable device (100) for a helmet (10) according to one of the preceding claims, characterized in that the said mounting interface (210) has at least two teeth (204) and in that the said protective casing (110) has at least two dwellings (205). Removable device (100) for helmet (10) according to one of the preceding claims, characterized in that the assembly interface (210) comprises at least one portion integrating particles of metallic material and/or of magnetic material. Removable device (100) for helmet (10) according to one of the preceding claims, characterized in that the mounting interface (210) comprises a metal plate. Removable device (100) for a helmet (10) according to one of the preceding claims, characterized in that the mounting interface (210) comprises an adhesive element (203) configured to ensure bonding of the mounting interface (210) on the outer surface of the helmet (10). Removable device (100) for helmet (10) according to one of the preceding claims, characterized in that the said magnetic source (220b) comprises at least one permanent magnet. A removable lighting device (100) for a helmet (10) according to any one of the preceding claims. Helmet comprising a removable device (100) according to one of the preceding claims, characterized in that the said mounting interface (210) is secured by gluing to an outer surface of the said helmet.