WO2021245251A1

WO2021245251A1 - Removable device for protective helmet

Info

Publication number: WO2021245251A1
Application number: PCT/EP2021/065040
Authority: WO
Inventors: Philippe Arrouart
Original assignee: Overade
Priority date: 2020-06-04
Filing date: 2021-06-04
Publication date: 2021-12-09
Also published as: FR3111054B1; FR3111054A1; EP4161308A1

Abstract

The invention relates to a removable device (100) for a helmet comprising a protective housing (110) comprising a front face (114) and a rear face (113) intended to come into contact with an outer surface of a helmet via a mounting interface (210), the mounting interface (210) being configured to be secured to the helmet, and to cooperate with a magnetic source (220b), provided in the protective housing (110), in order to secure the device removably to the helmet by magnetic effect, the mounting interface (210) having at least one tooth (204), the tooth (204) cooperating with a recess (205) provided at the rear face (113) of the protective housing (110), the tooth (204) and the recess (205) being configured to form a first abutment, referred to as the normal abutment, limiting the relative movements of the protective housing (110) in a first direction (Y), referred to as the normal direction, when the device (100) is secured by magnetic effect to the mounting interface (210).

Description

DESCRIPTION

TITLE: REMOVABLE DEVICE FOR PROTECTIVE HELMETS

TECHNICAL FIELD OF THE INVENTION

[0001] 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.

[0002] The invention relates more particularly to a removable device for a protective helmet, and in particular a removable lighting device for a protective helmet. [0003] 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 trips, the helmet, strongly recommended or even mandatory for the user, may include a device, for example an on-board camera or a lighting device making it possible to increase the visibility of the carrier vis-à-vis other road users.

[0005] These devices can be integrated from the design of the helmet, or brought back by the user via the use of fixing means.

[0006] There are many devices that can be attached and fixed, for example on a bicycle frame or on a protective helmet that does not specifically have a location provided for this purpose.

[0007] Generally, these devices are supplied with fixing means making it possible to secure the devices permanently or even removably on a protective helmet.

An advantage of the removable fixing means is to be able to easily detach 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.

[0009] However, the removable fixing 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 too protruding from the external surface of the protective helmet.

In addition, given the mode of use of this type of nomadic devices, the removable fixing means must be able to ensure a secure hold of the device, whatever the conditions of use, or whatever the user's movements.

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

[0012] Thus, it is not uncommon for the user to leave the device in position given the difficulty in uncoupling it from the support.

SUMMARY OF THE INVENTION

In this context, the invention aims to provide a removable device for a protective helmet making it possible to resolve the drawbacks of the state of the art. To this end, the invention relates to a removable device for a helmet comprising a protective housing comprising a front face and a rear face intended to come into contact with an external surface of a helmet via an interface mounting, the mounting interface being configured to be secured to the helmet, and to cooperate with a magnetic source, provided in the protective housing, to ensure removable attachment by magnetic effect of said lighting device on the helmet, the 'mounting interface having at least one tooth, said tooth cooperating with a housing provided at said rear face of the protective housing, said tooth and said housing being configured to form a first stop, called normal stop, limiting the relative movements of said protective housing according to a first direction, called the normal direction, perpendicular to said rear face, when the lighting device is secured by magnetic effect to the mounting interface.

In addition to the characteristics mentioned in the previous paragraph, the device according to the invention can 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 stopper, called vertical stopper, limiting the relative movements of said protective case in a second direction, called vertical direction, perpendicular to the normal direction, when the lighting device is secured by magnetic effect to the 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 magnetically secured to the mounting interface; said tooth has an inclination or an offset with respect to the mounting interface; the protective case has at its rear face a cavity delimited by a peripheral edge projecting from 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 edge is configured to form an indexing means facilitating the positioning of said protective housing on said mounting interface; said housing is provided at the level of 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 housing has at least two housings; the mounting interface comprises at least one portion integrating particles of metallic material and / or of magnetic material; the mounting interface has a metal plate; the mounting interface includes an adhesive member configured to ensure bonding of the mounting interface to an exterior surface of the helmet; said magnetic source comprises at least one permanent magnet; the device is a lighting device.

In addition to the characteristics mentioned in the previous paragraph, the device according to the invention is a lighting device which can have one or more additional characteristics among the following, considered individually or in any technically possible combination: the protective housing has a generally curved shape and integrates: means for storing electrical energy; an opto-electronic element capable of emitting light when it is traversed by an electric current; a control module controlling said opto-electronic element and supplied by said means for storing electrical energy; a printed circuit electrically connecting said optoelectronic element and said control module; said printed circuit comprising a central portion positioned in a central portion of said protective housing, 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 comprises 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 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 largest elements in the lighting device, the thickness of the lighting device is determined by the thickness at 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 case; 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 fixing means comprising a first part configured to be secured to a helmet and a second part secured to said protective housing, 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 to activate or deactivate said light-emitting diodes of the second series of light-emitting diodes , said control means being a remote control or an accelerometer, or a gyrometer or a device with tactile control or a device with voice control.

[0018] The subject of the invention is also 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 on examining the accompanying figures.

BRIEF DESCRIPTION OF THE FIGURES

[0020] The figures are presented only as an indication and in no way limit the invention. [0021 j Figure 1 is a perspective view of an exemplary embodiment of a device according to the invention.

[0022] Figure 2 is an exploded view of the exemplary embodiment of the device according to the invention illustrated in Figure 1.

[0023] Figure 3 is a top sectional view illustrating the interior of the device according to the invention illustrated in Figure 1.

[0024] 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.

[0025] Figure 5 is a perspective view illustrating the rear part of the device according to the invention illustrated in Figure 1 during mounting on the mounting interface illustrated in Figure 4.

[0026] Figure 6 is a perspective view illustrating the rear part of the device according to the invention illustrated in Figure 1 after mounting on the mounting interface illustrated in Figure 4. [0027] Figure 7 is a view of sectional top 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 is mounted the device according to the invention.

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, we consider the case where the device according to the invention is a lighting device. However, the device according to the invention might not be a lighting device, but for example an on-board camera. [0032] The [fi g 1] illustrates, in a perspective view, the front or external face (ie the face most visible to road users) of an exemplary embodiment of a lighting device 100 according to the invention.

[0033] [Fig 2] illustrates an exploded view of the lighting device 100 according to the invention illustrated in [Fig 1], making it possible to view all the elements of the lighting device 100.

[0034] [Fig 3] 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 bulk obtained thanks to the particular implantation of the various elements of the lighting device 100. [0035] [0035] The [FIG. 4] illustrates, in a perspective view, the rear or internal face

(i.e. the face intended to be facing 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 described above for the various elements described below. Unless otherwise specified, the same element appearing in different figures has a single reference.

The lighting device 100 according to the invention comprises a protective housing 110, for example of plastic material, forming the external part of the lighting device 100. The protective housing 110 comprises for example two half-shells: a first front shell 111 and a second rear shell 112.

[0040] The [fig 10] 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 of the different elements necessary for the operation of the lighting device 100. [0042] The two halves -hulls 111, 112 are for example configured to fit together and to be kept integral with one another. To this end, the half-shells 111, 112 may include 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 relative to one another. 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 housing 110 from the outside.

The two half-shells 111, 112 further include means for maintaining and assembling the two half-shells 111, 112. The retaining means ensuring the assembly of the two half-shells are ad means shock allowing the two half-shells to be kept assembled, for example by clipping, screwing, ultrasonic welding, interlocking, etc.

In the exemplary embodiment illustrated in [fig 1] and in [fig 4], the two half-shells 111, 112 are held together by screwing. The rear half-shell 112 have orifices allowing the passage of screws adapted to cooperate with bores formed at the level of the front half-shell 111.

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

The protective housing 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 housing 110. The rear face 113 is advantageously located at the level of the rear shell 112. The front face 114 is advantageously located at the level of the front shell 111.

[0047] [Fig 9] illustrates a protective helmet 10 on which is mounted the lighting device 100 according to the invention. As illustrated in [Fig 9], the protective housing 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]. [0049] The front face 114 also has a curved, substantially convex shape, for example parallel to the substantially concave shape of the rear face 113 so as to minimize the thickness and the bulk of the lighting device 100.

[0050] Thus, the thickness of the lighting device 100 is substantially constant.

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

The protective housing 110 can also be made entirely or partially in 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 case 110 makes it possible to be able to modify the general curvature of the protective case 110 and thus present a curvature which matches the geometry of the protective helmet 10. He

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 inside of the protective casing 110 to the outside of the protective casing 110. [0054] The transparent or translucent part is for example made from a transparent or translucent thermoplastic polymer material, such as PMMA (for polymethyl methacrylate), silicone or polypropylene for optimum light diffusion.

The protective casing 110 also includes an opening 115, preferably formed on one side of the protective casing 110 or else at an upper portion or a lower portion of the protective casing 110, as shown in [fig 1]. This latter embodiment advantageously limits the infiltration of rainwater inside the protective housing 110. [0056] The opening 115 advantageously allows access to a connector.

160 electrically and physically connected to a printed circuit 150 integrated inside the protective housing 110. The opening 115 can cooperate with a removable cap made of flexible material, for example of silicone or of TPU, thus making it possible to ensure the sealing of the protective housing 110 at the opening 115 vis-à-vis external conditions.

The lighting device 100 according to the invention further comprises: an opto-electronic element 120 capable of emitting light when it is traversed by an electric current; a driving module 130 configured to drive the opto-electronic element; electrical energy storage means 140 configured to supply electrical energy to the control module 130 and the opto-electronic element 120; an audible warning device 180. The opto-electronic element 120 is for example formed by a plurality of light-emitting diodes 120a, 120b (LED in the English language for Light-Emitting Diode) which can emit one or more colors. Alternatively, the opto-electronic element 120 comprises a liquid crystal display preferably combined with light emitting diodes.

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

In the embodiment illustrated in [Fig 2], the lighting device 100 comprises a first series of light-emitting diodes referenced 120a emitting, preferably, a red light, and a second series of light-emitting diodes referenced 120b preferentially emitting a light of yellow or orange color.

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 device lighting 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 (s) of the lighting of the opto-element. electronic 120, in particular with the use of light-emitting diodes having several emission colors, the lighting mode (continuous or flashing), etc.

All of 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. 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 on or off 'turning off the lighting device 100, or else choosing an operating mode of said lighting device 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 comprises at least one light emitting diode of a second series 120b, for example emitting an orange or yellow light.

According to a first exemplary 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 in epoxy resin. The end portions 152 are then electrically connected to the central portion 151 via electrical conductors, for example by conductor cables or multi-stranded layers. The electrical conductors, preferably flexible, being thin, they can be superimposed on the thickness of the electrical energy storage means 140 without significantly 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 "flex-rigid", forming a combination of "standard" rigid printed circuits and printed circuits flexible with the advantages of each and providing an advantageous solution in response to a need for space and reliability. The flexible printed circuits can be made from a thin plastic substrate, of high performance type, such as for example polyimide or also 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 means of 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 of small thickness, they can be superimposed on the electrical energy storage means 140 without significantly increasing the thickness of the lighting device 100. In this exemplary embodiment, the advantages of robustness and compactness are combined. As illustrated in [Fig 2], the end portions 152 are advantageously elongated in shape 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 have 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, for example by soldering, can be formed by a single series of light-emitting diodes referenced 120a, preferentially emitting 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 emitting, preferably, a light of red color, and a second series of light-emitting diodes referenced 120b, preferentially emitting light. yellow or orange in color, 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 means 140 for storing electrical energy are advantageously formed by the association of several storage units 141, 142 for electrical energy, for example a first storage unit 141 and a second storage unit 142, physically independent of one another and electrically connected to the electronic components, for example via the central portion 151 of the printed circuit 150, preferably by means of solders or electrical connectors.

The storage units 141, 142 for 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 parallelepipedal or cylindrical in shape. According to an exemplary embodiment in which the storage units 141, 142 are not rechargeable, the protective case 110 advantageously comprises removable covers making it possible to easily open and close the protective case 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 housing 110, for example by a system of clips.

Advantageously, the storage units 141, 142 are batteries that it is possible to recharge via the connection of an external power supply at the level of the connector 160. The management of the power supply and of the recharging of the charging units. storage 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 housing 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 device. lighting 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 of 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 25x20x4 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 bulk. overall of the lighting device 100 by dividing the electrical energy storage means into several storage units 141, 142 of smaller dimensions and by distributing the different storage units 141, 142 at different specific locations inside the housing protective 110, preferably without superimposition 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 distribute 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 printed circuit positioned at the opposite side of the lighting device also makes the lighting device unbalanced. . Thus, it is common to find in lighting devices of the prior art that the weight is not balanced and that 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 ends and right of the lighting device 100. Such a positioning thus makes it possible to limit the risk of confusion between the indication of left and right direction. Advantageously, the protective housing 110 has an elongated shape with respect to its height in order 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 direction indication.

According to another variant, at least 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 interrupt the light-emitting diodes 120a and / or 120b longitudinally 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 may be provided with openings to let the light of the light-emitting diodes 120a, 120b pass.

The storage units 141, 142 of electrical energy 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 alternatively the navigation between different piloting modes. The transmission power of the buzzer 180 can vary depending on the ambient noise so that the user of the lighting device 100 can hear it regardless of the external environment. Advantageously, the buzzer 180 is located in the central part of the lighting device 100, having the greatest distance between the printed circuit 150 and the protection box 110. Thus, it is possible to integrate a warning device. sound 180 having larger dimensions, and therefore more powerful.

In addition, the lighting device 100 may include: a communication module, for example of the radio communication, Bluetooth, Wifi type, making it possible to pair, for example, the lighting device 100 with a remote control to control via a Remote Human / Machine interface the type and / or mode of lighting of the lighting device 100 and in particular indicating a direction; a 1 to 3 axis accelerometer for detecting variations in speed, 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 mode of lighting accordingly; software means associated with a microphone configured to allow voice recognition and to control the type and / or mode of lighting of the lighting device 100; a GPS guidance device interacting with the control 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 varying the curvature of the lighting device 100, the protective housing 110 may also have one or more hinge zones longitudinally acting as a hinge to modify the curvature of the lighting device 100 and thus allowing 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. [00100] [Fig 7] is a sectional view of an exemplary embodiment of the lighting device 100 according to the invention, having articulation zones.

[00101] [Fig 8] illustrates, in a perspective view, the rear or internal face of the lighting device 100 according to the invention, illustrated in [Fig 7] [00102] In the exemplary embodiment illustrated in [fig 7] and in [fig 8], the protection box 110 has two articulation zones located between the various electronic elements integrated inside the protection box 110. More precisely, each articulation zone is located between a central portion 151 of the printed circuit 150 and a storage unit 141, 142. Each articulation zone consists of a groove 118, which has the consequence that the thickness of the protective housing 110 is reduced to the level articulation zones. In this exemplary embodiment, the fixing means are for example a double-sided adhesive integral with the rear face 113 of the lighting device 100. [00103] The lighting device 100 according to the invention is for example a device for front or rear light for protective helmet 10.

[00104] 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 include light-emitting diodes capable of emitting a light different from a red light, for example preferably blue, yellow or even white.

[00105] The lighting device 100 also comprises means allowing removable attachment of the protective housing 110 on the protective helmet 10, as illustrated in [FIG. 9]. The fixing means comprise a first part configured to be secured 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 secured on the protective housing 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 embodiment illustrated in the preceding figures, and more particularly in [fig 4] and in [fig 2], the fixing means 200 are formed by the association 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 housing 110, configured to provide a removable mechanical connection and means configured to provide a removable magnetic connection of the device d illumination 100 on the mounting interface 210. [00108] [Fig 5] is a perspective view illustrating the rear part of the lighting device 100 according to the invention illustrated in [Fig 1] during assembly of the device lighting 100 on the mounting interface 210 shown in [fig 4]

[00109] [Fig 6] is a perspective view illustrating the rear part of the lighting device 100 according to the invention illustrated in [Fig 1] after mounting the lighting device 100 on the mounting interface 210 illustrated in [fig 4]

[00110] The mounting interface 210 has at least a portion incorporating 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 the deposition of a double-sided adhesive layer, positioned on one side of the interface of assembly 210 intended to be opposite 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. [00113] 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 of magnetic material such as magnets. The means configured to provide 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 housing 110.

[00115] For example, the magnetic source 220b comprises one or more permanent magnets 220b, housed in the protective housing 110, preferably near the rear face 113.

[00116] The magnetic source 220b in combination with the mounting interface 210 having portions of metallic and / or magnetic particles enables 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 link and / or to distribute the magnetic forces over a larger area.

Advantageously, the permanent magnet (s) 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, behind the storage means 140, that is to say between the rear half-shell 112 and the storage means 140.

[00120] Thus, the permanent magnet (s) 220b are positioned as close as possible to the rear face 113 of the protective housing 110 so as to optimize the force of attraction with the metal 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, regardless of the conditions of use , while allowing easy decoupling for the user. [00122] According to another variant, the magnetic source is located on the mounting interface 210 and the protective case 110 comprises at least one portion incorporating particles of metallic material and / or of magnetic material.

As illustrated in [Fig 4] illustrating more particularly the rear face of the lighting device 100, the rear face 113 of the protective housing 110 has a cavity 116, delimited by a peripheral edge 117, allowing to introduce and to at least partially house the mounting interface 210.

[00124] By way of example, the cavity 116 can be set back relative 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. of the adhesive element 203 so that the rear face 113 of the protective housing 110 conforms to 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 It is preferable to provide a slight clearance between the rear face 113 of the protective case 110 and the surface of the protective helmet 10 to be sure that the contact is made between the cavity 116 and the mounting interface 210.

According to the embodiment illustrated by Figures 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 edge 117. The peripheral edge 117 forms a relief relative 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.

[00126] Thus, the cavity 116 is delimited by a peripheral edge 117 forming a relief relative to the bottom of the cavity 116, and / or relative to the rear face 113 of the protective housing 110. The peripheral edge 117 advantageously forms a indexing means to facilitate the positioning of the protective housing 110 around the mounting interface 210 and / or a stop peripheral making it possible to block the movements of the protective housing 110 with respect to the assembly interface 210 (while allowing an assembly clearance).

The peripheral edge 117 is configured to block the movements of the protective housing 110 relative 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 lighting device 100 unhooked inadvertently from the protective helmet 10 during urban or extra-urban travel. Indeed, the magnetic link exerts a holding force in the direction Y normal to the rear face 113, but the force of adhesion of the contact between the mounting interface 210 and the rear face 113 of the protective housing 110 is insufficient. to keep it in position in the vertical Z and tangent X directions.

[00128] The cavity 116 advantageously has an asymmetrical shape so as to avoid mounting the lighting device 100 in the wrong position. In particular, this physical keying limits the risk of reversing the left and right direction indicators by positioning the lighting device in the opposite direction relative to the mounting interface 210.

The locking means 220a, integral with the protective housing 110, configured to provide a removable mechanical connection, make it possible to carry out an additional blocking and to ensure that the protective housing 110 is held in position, 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 locking means 220a make it possible to block the rotations of the protective housing 110 around the tangent axis X substantially parallel to the contact surface of the protective housing 110 with the protective helmet 10. [00131] A To this end, the locking means 220a comprise at least one housing 205 formed in an upper part 117a of the peripheral edge. 117 and at least one tooth 204 forming an extension of the body of the mounting interface 210, advantageously at the level of the upper part of the mounting interface 210. The tooth 204 has a thickness suitable for fitting inside of the space delimited by the dwelling 205.

As illustrated in [Fig 5] 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 mounting interface 210 is inserted inside the housing 205, that is to say in the space delimited by the two portions 206, 207.

[00134] The cavity 116 may include openings 221 in the area located opposite the second portions 207 as illustrated in FIG. 10. This embodiment makes it possible to simplify the manufacturing process of the protective case 110 by molding while correctly securing the protective housing 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 tightness of the protective housing 110.

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

The rotation around the tangent X axis 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 protective housing 110 against the mounting interface 210 as well as by the peripheral edge 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 an assembly clearance), the relative movements of the upper part of the protective housing 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 housing 110 around the tangent axis X, substantially parallel to the surface of the protective helmet 10. Thus, the housing 205 and tooth 204 are used to prevent detachment of protective housing 110 from mounting interface 210 at the top. The lighting device 100 being located at the front of the housing 205, the housing 205 blocks in rotation along the tangent X axis the forces due to gravity and to the accelerations experienced while rolling. Indeed, once the protective casing 110 is in position, it is necessary to achieve a particular kinematics, in particular by pivoting the protective casing 110 upwards so as to first take off the lower part of the protective casing 110 from the helmet. protection 10. Since such a movement is not 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 an assembly clearance), the movements of the protective housing 110 along the vertical axis Z, in association with the lower part 117d of the peripheral edge 117 which forms a vertical lower 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 edge 117 and more particularly by the lateral portions 117b, 117c of the peripheral edge 117 which form stops side when the protective housing 110 is in position on the mounting interface 210. The peripheral edge 117 can thus block the relative movements of the protective housing 110 with respect to the mounting interface 210 in directions normal to the Y direction, or tangent 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 portion large enough to prevent pivoting of the protective housing 110 relative to the mounting interface 210 around the normal axis Y. Thus, one avoids, or limits, the possibilities of rolling of the lighting device 100. Advantageously, the peripheral edge 117 has a housing 205 positioned in the center of the part. upper 117a of the peripheral border 117.

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

In the embodiment illustrated in Figures 1 to 6, the protective housing 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 '210 mounting interface.

Advantageously, the teeth 204 have an inclination or an offset relative 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 device more visible. lighting 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 so that the magnetic link does not form. Indeed, the user thus realizing the mounting of the lighting device 100 in the wrong 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 housing 110 in order to prevent the upward tilting and the detachment of the lighting device 100. In this case, the mounting interface 210 does not need to be metallic or magnetic.

The lighting device 100 according to the invention can also further comprise fixing means configured to allow fixing, temporary or definitive, on a support, such as a bag, a cap, a hat, an item of clothing. , a motorized vehicle or not such as for example a bicycle, a scooter, a motorbike. It can also be attached directly to the head with a headband. The fixing means are for example a double-sided adhesive integral with the rear face 113 of the lighting device 100. The fixing means are for example a system of the loop and hook-and-loop type.

[00147] The subject of the invention is also 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.

[00148] The protective helmet 10 according to the invention is a helmet allowing a user to protect his head when traveling in urban or extra-urban areas.

[00149] 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 all means of movement requiring protection of the head.

[00150] 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

[Claim 1] Device (100) removable for a helmet (10) comprising a protective housing (110) having a front face (114) and a rear face (113) intended to come into contact with an outer surface of a helmet ( 10) via 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), provided in the protective case (110), to ensure removable attachment by magnetic effect of said device on the helmet (10), characterized in that the mounting interface (210) has at least one tooth

(204), said tooth (204) cooperating with a housing (205) provided at said rear face (113) of the protective housing (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 housing (110) in a first direction (Y), called normal direction, perpendicular to said rear face (113) when the device (100) is secured by magnetic effect of the mounting interface (210).

[Claim 2] Device (100) removable for a helmet (10) according to the preceding claim characterized in that said tooth (204) and said housing (205) are configured to form a second stop, said vertical stop, limiting the relative movements of said protective housing (110) in a second direction (Z), called the vertical direction, perpendicular to the normal direction (Y), when the device (100) is secured by magnetic effect to the mounting interface (210). [Claim 3] Removable device (100) for a helmet (10) according to one of the preceding claims characterized in that said tooth (204) and said housing

(205) are configured to form an anti-rotation means of said device (100), around said normal direction (Y), when the device (100) is secured by magnetic effect to the mounting interface (210). [Claim 4] Device (100) removable for a helmet (10) according to one of the preceding claims characterized in that said tooth (204) has an inclination or an offset relative to the mounting interface (210).

[Claim 5] Device (100) removable for a helmet (10) according to one of the preceding claims characterized in that said protective housing (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.

[Claim 6] Device (100) removable 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).

[Claim 7] Device (100) removable for a helmet (10) according to the preceding claim characterized in that the bottom of the cavity (116) has at least one opening (221) vis-à-vis the second portion (207 ).

[Claim 8] Device (100) removable for a helmet (10) according to the preceding claim characterized in that the peripheral edge (117) is configured to form an indexing means facilitating the positioning of said protective housing (110) on said interface assembly (210).

[Claim 9] Device (100) removable for a helmet (10) according to one of claims 5 to 8 characterized in that said housing (205) is provided at an upper part (117a) of said peripheral edge (117 ).

[Claim 10] Removable device (100) for a helmet according to one of claims 5 to 9 characterized in that said cavity (116) is configured to receive and integrate, at least partially, said mounting interface (210). [Claim 11] Device (100) removable for a helmet (10) according to one of claims 5 to 10 characterized in that said cavity (116) has an asymmetrical shape.

[Claim 12] Device (100) removable for a helmet (10) according to one of the preceding claims characterized in that said mounting interface (210) has at least two teeth (204) and in that said protective housing (110 ) has at least two housings (205).

[Claim 13] Device (100) removable for a helmet (10) according to one of the preceding claims, characterized in that the mounting interface (210) comprises at least one portion integrating particles of metallic material and / or of magnetic material .

[Claim 14] Removable device (100) for a helmet (10) according to one of the preceding claims, characterized in that the mounting interface (210) comprises a metal plate.

[Claim 15] Device (100) removable 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 a bonding of the interface of mounting (210) on the outer surface of the helmet (10).

[Claim 16] Removable device (100) for a helmet (10) according to one of the preceding claims, characterized in that said magnetic source (220b) comprises at least one permanent magnet.

[Claim 17] A removable lighting device (100) for a helmet (10) according to any preceding claim.

[Claim 18] Helmet comprising a removable device (100) according to one of the preceding claims characterized in that said mounting interface (210) is secured by bonding to an outer surface of said helmet.