• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a helmet for sporting practice (1). The helmet includes an outer shell (2) for positioning on a skull, the outer shell including: - an upper portion (21) for covering at least the top portion (211) of the skull, the material forming the upper portion having mechanical properties adapted so that the upper part satisfies a homologation standard defined for the intended use of the helmet; and - a lower portion (22) integral with the upper part and extending continuously so as to cover at least partially, the lateral and posterior parts (221) of the skull, the lower part being made of a material having a modulus d elasticity different from that of the material forming the upper part.
    公开号:FR3020560A1
    申请号:FR1401016
    申请日:2014-04-30
    公开日:2015-11-06
    发明作者:Peter Wirthenstaetter；Kapil Harit
    申请人:Atomic Austria GmbH；
    IPC主号:
    专利说明:

    [0001] HELMET ADAPTED TO THE CONSTRAINTS OF ITS USE The invention relates to a protective helmet for sporting activity. Such activities may include downhill skiing, ski touring or snowboarding. The invention also extends to the practice of climbing, mountaineering, cycling or the practice of snowmobiling. Generally, a helmet forms a protection of the head, to protect the skull of the shocks that it could undergo when the user makes a fall or when an object is projected in its direction. A classic helmet construction includes an outer shell and an inner cap. The outer shell is generally rigid, and is for example made by molding / injection of a thermoplastic material such as ABS (Acrylonitrile Butadiene Styrene) or PC (PolyCarbonate). Commonly, the inner cap is made of an expanded material such as EPS (Expandable PolyStyrene) or EPP (Expandable PolyPropylene). In order to guarantee good comfort for the user, the helmet is generally equipped with an internal cap which may, for example, be made of foam covered with fabric. The inner cap is attached to the inside of the inner cap. A helmet is intended to reduce the risk of injury to the skull of the user, while having the least weight possible to not affect the comfort of the user. To ensure the safety of users, there are several standards generally defining tests and acceptance thresholds that are applied to helmets that are candidates for certification in the associated discipline. Depending on the sporting activity, the normative requirement may differ. Thus, a standard covers a specific activity. From these requirements, there are features that the helmet must provide to provide the required protection. For example, these characteristics correspond to properties of penetration resistance and shock absorption properties, in different areas of the helmet. For example, the standards EN 1077: 2007 (Europe) or ASTM F2040 (US) apply for the practice of alpine skiing and snowboarding. EN 13781: 2012 (Europe) or FMVSS No. 218 (US) apply to the practice of snowmobiling. Standard EN 12492: 2012 (Europe) applies to the practice of mountaineering and climbing. The standard EN 1078: 2012 (Europe) or 16 CFR Part 1203 - CPSC (US) applies to the practice of cycling.
    [0002] Current helmets, made by injection, generally comprise an outer shell made of the same material. This construction requires the use of a suitable material to pass the most severe normative constraint to the detriment of other characteristics such as the weight, the efficiency of the damping ...
    [0003] In addition, it is difficult to design a helmet that meets both resistance to penetration and impact resistance, in particular by maintaining a reduced weight and manufacturing cost. It is also difficult to use similar designs of helmets for different sports activities, the constraints to be respected, defined in the standards, being, for example, different for the practice of alpine skiing or the practice of the snowmobile. . Moreover, the homologation standards may vary according to the geographical zones, it is difficult to adapt the same helmet geometry to these different standards. The invention aims to solve one or more of these disadvantages. An object of the invention is in particular to provide an improved helmet for a sporting practice. The invention aims in particular to provide a helmet adapted to both penetration resistance and impact resistance constraints, while maintaining a reduced weight and manufacturing cost. The invention also aims to allow the use of similar designs of helmets and the same manufacturing tools for different helmets for different sports activities, and therefore having to meet different approval standards. The invention thus relates to a helmet for sporting practice. The helmet includes an outer shell for positioning on a skull. The outer shell comprises an upper part intended to cover at least the top part of the skull, the material forming the upper part having suitable mechanical properties so that the upper part satisfies a homologation standard defined for the intended use of the helmet and a lower portion secured to the upper part and extending continuously so as to cover at least partially the lateral and posterior parts of the skull, the lower part being made of a material having a modulus of elasticity different from that of the material forming the upper part. This design optimizes the structure of the outer shell, providing a strengthening of the mechanical properties or damping locally, according to the normative requirements specific to a discipline. We can then have less stressed areas with more flexible characteristics. This results in a lighter and more economical helmet. In addition, by substituting a part of the shell of a helmet dedicated to a discipline by another part made of a different material, one can design a helmet meeting the normative requirements of another discipline.
    [0004] According to advantageous but non-compulsory aspects of the invention, such a front stop may incorporate one or more of the following features, taken in any technically permissible combination: the helmet comprises an inner cap, distinct from the outer shell, the inner cap being attached to the inside of the outer shell. The material forming the upper part having mechanical properties adapted so that the upper part satisfies the homologation standard for the practice of alpine skiing or snowboarding. - The modulus of elasticity of the material forming the upper part is less than 1000 MPa. - The modulus of elasticity of the material forming the upper part is lower than that of the material forming the lower part. - The upper part and the lower part form a single piece. - The lower part and the upper part are superimposed so as to form an extra thickness. According to one embodiment, the extra thickness is able to be housed in a groove in the inner cap. The invention also relates to: a method of manufacturing a helmet for sporting practice, including a step of fixing a lower part to an upper part to form a rigid cap intended to be positioned on a skull, so that the upper part can cover at least the upper part of the skull and so that the lower part extends continuously so as to cover at least partially the lateral and posterior parts of the skull. - A method of manufacturing a helmet as defined above, wherein the attachment of the lower part to the upper part is performed by an overmoulding process or a bi-material injection process. Other features and advantages of the invention will emerge clearly from the description which is given below, for information only and in no way limitative, with reference to the accompanying drawings, in which: - Figure 1 is a perspective view before d a helmet according to the invention; FIG. 2 is a rear perspective view of the helmet of FIG. 1; - Figure 3 is a perspective view of the outer shell; FIG. 4 is a view in median section of the outer shell; FIG. 5 is a detail view A of FIG. 4 to which the inner cap has been added. In the rest of the description, terms such as "horizontal", "vertical", "longitudinal", "transversal", "superior", "lower", "up", "down", "before" will be used. , " back ". These terms should be interpreted in a relative sense in relation to a helmet worn normally, head straight. Figure 1 is a perspective view illustrating a helmet 1 for sports practice according to one embodiment of the invention.
    [0005] The helmet 1 comprises an outer shell 2 and an inner cap 3. The inner cap 3 is housed in the internal volume of the rigid shell 2. It is fixed on the inner face of the rigid shell 2. The inner cap 3 can be covered an internal cap, not shown. The inner cap is for example made of foams surrounded by a fabric or only tissues.
    [0006] The helmet 1 may also include a retention system, not shown here, including for example a chin strap or a head restraint system. The helmet 1 is intended to wrap at least part of a skull that the helmet will protect. In the remainder of the description, several protection zones are defined.
    [0007] A first protective area 211, referred to as the "crown portion" of the skull, covers the top of the skull. It is defined by an area covering an upper part of the frontal bone and an upper part of the parietal bone. A second shield area 221, referred to as a "peripheral portion" of the skull, covers the lateral and posterior portions of the skull. The lateral portions are defined by an area at least partially covering the sphenoid bone and the temporal bone. The rear portion is defined by an area at least partially covering the occipital bone. To ensure the desired protection, depending on the discipline, the helmets must meet specific tests defined by the standard associated with the discipline. For the practice of alpine skiing and snowboarding, the helmet must withstand puncture tests on the top of the skull and must have adequate cushioning characteristics to withstand impact in one of the frontal, rear, side and top zones. . For impact resistance, a false head is placed inside the helmet and the helmet fitted, in an orientation at the discretion of the laboratory, of a given height. The acceleration measured at the head must remain below a determined threshold value. For the practice of snowmobiling, the helmet must withstand puncture tests on the top of the skull and must have damping characteristics sufficient to withstand alternately double frontal and lateral impact. It should be noted that the perforation test is more severe than that carried out to homologate a ski helmet. For the practice of mountaineering, the helmet must withstand puncture tests on the top of the skull and must have damping characteristics sufficient to withstand the impact of a projectile sent to the top of the skull. It should be noted that the perforation test is similar to that carried out to certify an alpine ski helmet. For the practice of cycling, the helmet must have enough damping characteristics to pass the specific tests. These tests are similar to those performed for the homologation of an alpine helmet. These requirements emphasize that the expected characteristics of the helmet are not necessarily homogeneous in all areas of the helmets and depend on the discipline exercised.
    [0008] Thus, the top part of the helmet, corresponding to the first protection zone 211, must have puncture resistance properties and damping properties. The resistance to perforation is mainly achieved by the outer shell. The damping is obtained by the combination of the outer shell and the inner cap.
    [0009] It emerges that the top part may have different mechanical properties from the other parts in order to optimize the structure while respecting the normative requirements. This is what the invention proposes by modifying the mechanical properties of the outer shell as a function of the protection zones. In our example, the outer shell 2 has an upper portion 21 for covering at least the first protection zone 211 and a lower portion 22 extending continuously so as to cover at least partially the second protection zone 221. Thus, the outer shell covers, at least in part, the frontal bone, the parietal bone, the occipital bone, the opposite sphenoid bones and the opposite temporal bones.
    [0010] The upper part 21 can be defined by a minimum surface of the outer shell extending from its top (upper end), when the helmet is worn normally, right head, to a curve defined by the intersection between the outer shell and a plane shifted downward by a distance D of about thirty millimeters from the vertex. This distance D can vary between twenty-five and forty millimeters. In the example shown, the upper portion extends beyond this minimum area. The upper portion 21 provides protection against perforation and contributes to the damping in case of shocks.
    [0011] The lower portion 22 provides satisfactory protection of the lower areas of the skull. It also limits the deformation of the outer shell 2 during side impacts by providing rigidity and resistance to the helmet. In horizontal section at the level of the ears, the lower portion 22 has a U-shaped shape passing behind the skull.
    [0012] In an embodiment not shown, it is conceivable that the lower portion 22 belt the skull. In this case, the lower part 22 defined above is extended towards the front of the helmet, then covering an anterior part of the frontal bone. The lower portion 22 thus forms a ring which further stiffens the outer shell 2. As a result, the helmet has a better hold when it is stressed laterally. The lower portion 22 of the outer shell 2 extends continuously over a width advantageously at least equal to twenty millimeters so as to connect the opposite sphenoid bones through the occipital bone. This width is, for example, between twenty and seventy millimeters in this area. The lower portion 22 is integral with the upper portion 21. The lower portion 22 and the upper portion 21 are formed in materials having different elastic moduli. With such a configuration, the lower portion 22 provides satisfactory protection of the areas it covers while stiffening the outer shell 2 by attaching it to the upper part 21. This rigidity brings the helmet to hold and avoids a sag of the upper part 21 which is connected to it. Attachment to the upper portion 21 promotes impact resistance of the outer shell 2. In the embodiment illustrated here, the lower portion of the cap 2 is continuously attached to the upper portion 21 from a bone sphenoid to the opposite sphenoid bone passing through the occipital bone. The upper part and the lower part thus form a single piece. This promotes structural cohesion between the upper 21 and lower 22 and therefore a better mechanical grip between the two parts. To obtain this outer shell 25 monobloc, it is preferentially used overmolding process or bi-injection, as will be detailed later. The helmet thus comprises an overmolded or bi-injected outer shell, which gives it characteristics optimized to meet the standards of the targeted discipline. In a variant, the two parts can be removable between them, which makes it possible to change one part for another having different mechanical properties or if the part exchanged is damaged. For a helmet 1 intended for alpine skiing or snowboarding, the upper part 21 is formed of a material having mechanical properties promoting a resistance to perforation, while the lower part 22 is formed in a material presenting a higher modulus of elasticity, to promote rigidity and impact resistance. Moreover, the damping characteristics of the helmet at the top impacts are generally dimensioning for the helmets. They are mainly determined by the mechanical properties of the inner cap.
    [0013] However, the outer shell also influences these damping properties of the helmet. In most existing helmets, the outer shell is mono material and very rigid, especially in the first protection zone. This stiffness penalizes the damping of the helmet for vertical shocks. The invention, applied to the alpine ski helmet, proposes to use a softer material, at least, at the first protection zone 211. Being more flexible, a portion of the vertical shock is absorbed by the outer shell. In addition, by being connected to a lower rigid part, the upper part can flare to damp the vertical shock. To obtain a good behavior of the helmet and in particular for a good damping, the upper part 21 is made of a flexible material having a modulus of elasticity or Young's modulus between 100 and 1000 MPa. To characterize a flexible material, one can consider the tensile stress at 100% elongation. For this upper part, this stress is preferably between 20 and 50 MPa. The Shore D hardness of the material is advantageously between 50 and 75. It may be a PU (Polyurethane), a PP (PolyPropylene), an SBS (Styrene-Butadiene-Styrene) or an SEBS (Styrene-Ethylene / ButyleneStyrene) . Very good results have been obtained by producing this upper part with Desmopran® DP 9855 DU or IRFRAN® MR 1301-010 or IRFRAN® MR 1301-030. Advantageously, the wall thickness of the upper portion 21 of the shell 2 is between one and three millimeters. To obtain good strength of the helmet, the lower portion 22 is made of a rigid material having a modulus of elasticity or Young's modulus of between 900 and 2500 MPa. It can be PU (Polyurethane), ABS (Acrylonitrile Butadiene Styrene), PP (PolyPropylene) or PC (PolyCarbonate). Advantageously, the wall thickness of the lower portion 22 of the shell 2 is between one and three millimeters. To obtain a good damping of the helmet, it is preferable that the modulus of elasticity, or Young's modulus, of the material forming the lower part 22 is at least one and a half times greater than that of the material forming the upper part 22. Advantageously, this ratio is greater than two. It can be envisaged that the upper portion 21 and the lower portion 22 have the same thickness, of the order of two millimeters. It can also be envisaged that the lower and upper portions have different thicknesses in order to stiffen certain areas. The average thickness of the outer shell, apart from the local extra thicknesses, is less than five millimeters.
    [0014] The upper portion 21 is advantageously sized to withstand the perforation tests of the EN 1077: 2007 standard for alpine helmets. A material of sufficient thickness and sufficiently resilient is for example used to form the upper part 21 of the outer shell 2.
    [0015] The helmet 1 can be designed to meet homologation standards defined for different sports, for example downhill skiing, snowmobiling, mountaineering or cycling. Due to the use of two different materials for the upper part 21 and the lower part 22, the characteristics of the helmet can be adapted to the targeted activity, while maintaining the same helmet geometry. Generally, it is enough to change the upper part according to the intended application. For example, for snowmobiles, it is necessary to reinforce the resistance to the perforation. For climbing, it is necessary to improve the projectile impact resistance. By his knowledge, a person skilled in the art can determine which material is most suitable for the upper part to satisfy a homologation standard defined for a particular use of the helmet. From the norms, he can deduce the mechanical properties that must be targeted in the choice of the material of the upper part. This design makes it possible to envisage common tools for making common parts or parts using materials having similar shaping parameters. In addition, with an outer shell provided with areas of materials having different mechanical properties, the design can be optimized to locally obtain, where necessary, improved strength and / or damping, while maintaining a lighter structure. It is also possible to size the outer shell to allow the homologation of the helmet in several disciplines without strongly penalizing the weight. Such a helmet then meets several standards. It may be envisaged that the lower part 22 may comprise several zones made of different materials in order, for example, to locally reinforce the structure of the outer shell. To make a helmet, there are two main technologies. A first technology, called injection, consists of producing the outer shell and the inner cap separately. In a second step, the inner cap is assembled in the outer shell by appropriate connecting means such as clips, fasteners, rivets, glue, VELCRO hooks ... This technology offers the possibility to separate the inner cap of the outer shell if necessary. This may be useful, for example, to replace a deteriorated part. A second technology, called thermoforming or "in-mold", consists of producing the outer shell at first. In a second step, the shell is placed inside a mold in which a material is injected to produce the inner cap. Thus, the inner cap is directly connected to the outer shell to form a one-piece piece having an average thickness greater than five millimeters. This chemical grip is indémontable. It allows an excellent connection between the two parts.
    [0016] The invention applies to helmets made according to the first technology for which an outer shell is made independently of the inner cap, the outer shell comprising at least two upper and lower parts made of different materials. Advantageously, the outer shell is made by an overmolding or bi-injection process. These technologies make it possible to obtain a one-piece shell. The chemical grip between the upper and lower parts is very good. The shell then has good mechanical strength and does not require or little recovery which provides an economical finish, suitable for the desired aesthetic.
    [0017] The overmoulding process consists of injecting a first part beforehand. This first part forms an insert which is then placed in a mold into which the second part is injected. The bi-injection process consists in simultaneously injecting the two materials into the same mold, in order to produce the complete shell. This technology makes it possible to obtain better mechanical and chemical grip between the two parts. However, the price of tools is greater than for overmolding technology. For the injection to go well, it is advantageous that each part of the shell has a substantially constant thickness. At the junction zone 23 between the two parts, an excess thickness 24 is provided so that the two materials can mix better in order to increase the chemical and mechanical adhesion between the two parts. In this example, the junction zone 23 extends over a width of less than thirty millimeters. The thickness of this zone is substantially equal to the sum of the average thicknesses of each assembled portion. Advantageously, it is less than four millimeters not to weigh down the helmet. Advantageously, this extra thickness 24 is projecting into the internal volume of the outer shell 2. Thus, the external surface of the outer shell is continuous, without asperities, which is sought for the aesthetics and aerodynamics of the helmet. The inner cap 3 here comprises a groove 31 intended to receive the excess thickness 24. Thus, the cooperation between the excess thickness 24 and the groove 31 promotes a relative positioning between the outer shell 2 and the inner cap 3, during the assembly of the helmet 1. In addition, this allows a certain relative maintenance between the two parts, this cooperation limiting a relative movement of the cap relative to the hull. Note that the current helmet designs do not facilitate a precise positioning of the inner cap relative to the outer shell. Moreover, the excess thickness 24 makes it possible to form a stiffening strip at the junction between the upper part 21 and the lower part 22. This rigidity contributes to the good strength of the helmet and prevents sagging of the helmet when it is stressed. In the illustrated embodiment, the inner cap 3 forms an envelope covering a portion of the skull. This envelope comprises in its inner part recesses 32 intended to receive removable cushions 4. These cushions are fixed on the inner cap, in these recesses 32, by suitable fastening means, for example, an adhesive tape or hooks VELCRO type . The cushions are deformable. It can be mosses. These removable cushions are preferably positioned on the front part, the lateral parts, the rear part and the summit part of the inner surface of the inner cap. These cushions are used to improve the wearing comfort by allowing the setting of the helmet on the morphology of the skull of the user. Thus, by changing only the cushions, one can adapt the internal interface of the helmet to different types of skull morphology, for example, circular / ovoid. In addition, cushions can also be used to help dampen shocks by using suitable materials. In this example, the helmet is shown without provision for ventilation. Of course, the helmet may include such arrangements in the form of openings in the outer shell 2 and air ducts formed in the inner cap 3. The invention is not limited to these embodiments. It is possible to combine these embodiments. The invention is not limited to the embodiment described above but extends to all the embodiments covered by the appended claims.
    权利要求:
    Claims (10)
    [0001]
    REVENDICATIONS1. Helmet for sports practice (1), characterized in that it comprises an outer shell (2) intended to be positioned on a skull, the outer shell including: - an upper part (21) intended to cover at least the top part (211) of the skull, the material forming the upper part having mechanical properties adapted so that the upper part meets a certification standard defined for the intended use of the helmet; and - a lower portion (22) integral with the upper part and extending continuously so as to cover at least partially, the lateral and posterior parts (221) of the skull, the lower part being made of a material having a modulus d elasticity different from that of the material forming the upper part.
    [0002]
    2. Helmet (1) according to claim 1, characterized in that the material forming the upper part has suitable mechanical properties so that the upper part satisfies the homologation standard for the practice of alpine skiing or snowboarding.
    [0003]
    3. Helmet (1) according to one of the preceding claims, characterized in that the modulus of elasticity of the material forming the upper part (21) is less than 1000 MPa.
    [0004]
    4. Helmet (1) according to one of the preceding claims, characterized in that the modulus of elasticity of the material forming the upper part (21) is less than that of the material forming the lower part (22).
    [0005]
    5. Helmet (1) according to one of the preceding claims, characterized in that the upper part and the lower part form a single piece.
    [0006]
    6. Helmet (1) according to any one of claims 1 to 4, characterized in that the lower part and the upper part are superimposed so as to form an extra thickness (24).
    [0007]
    7. Helmet (1) according to one of the preceding claims, characterized in that it comprises an inner cap (3), separate from the outer shell (2), the inner cap being attached to the inside of the outer shell .
    [0008]
    8. Helmet (1) according to claims 6 and 7, characterized in that the extra thickness (24) is adapted to be housed in a groove (31) formed in the inner cap (3).
    [0009]
    9. A method of manufacturing a helmet for sporting practice (1), including a step of fixing a lower part (22) to an upper part (21) to form an outer shell (2) intended to be positioned on a skull, so that the upper part (21) can cover at least the top part (211) of the skull and so that the lower part (22) extends continuously so as to cover at least partially the lateral parts and posterior (221) of the skull.
    [0010]
    10.Process of manufacturing a helmet according to the preceding claim, wherein the fixing of the lower part (22) to the upper part (21) is carried out by an overmolding process or a bi-material injection process. 15
    类似技术:
    公开号 | 公开日 | 专利标题
    EP2939556A1|2015-11-04|Helmet adapted to its use constraints
    CA2823932C|2016-02-16|Multi-component helmet with ventilation shutter
    EP1708587B1|2008-04-02|Semi-rigid protective helmet
    EP2974612B1|2017-11-01|Damping helmet
    CN102370285B|2016-08-17|Improved sports safety helmet
    CA2787019C|2015-11-17|Helmet comprising surface reinforcing component with embedded anchors
    FR2863149A1|2005-06-10|MODULAR HELMET
    US10743603B2|2020-08-18|Clip-free helmet visors
    US20190090574A1|2019-03-28|Interlocking co-molded helmet energy management liner
    US20220000208A1|2022-01-06|Helmet goggle strap holder
    FR3049826A1|2017-10-13|SPORT HELMET
    EP2205112B1|2012-03-07|Protection helmet including a cap with flexible flaps
    FR3051330A1|2017-11-24|HELMET ADJUSTED
    FR3054413B1|2019-07-26|HELMET WITH A DAMPING CAP
    EP3100625A1|2016-12-07|Sports helmet
    FR3033987A1|2016-09-30|HELMET FOR SPORTS ACTIVITY, AND METHOD OF MAKING SUCH A HELMET
    EP2242388B1|2012-04-25|Head protection device with removable shell
    FR3009167A1|2015-02-06|HELMET
    FR2976775A1|2012-12-28|Dorsal protection device for protecting spinal column during practicing e.g. motorcycle riding, has grid comprising modules that are arranged one above another to form longitudinal rows, which bend and twist support by relative displacement
    FR3055527A1|2018-03-09|PROTECTIVE HELMET WITH NEW JUGULAR SYSTEM
    AU2011235964A1|2012-04-26|An Article of Headgear
    同族专利:
    公开号 | 公开日
    US20150313307A1|2015-11-05|
    EP2939556A1|2015-11-04|
    FR3020560B1|2016-05-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2962303A1|2010-07-09|2012-01-13|Strategic Sports Ltd|Enhanced helmet for sports practice|
    US8191179B2|2008-01-25|2012-06-05|Bauer Hockey, Inc.|Hockey helmet with an outer shell made of two different materials|USD777986S1|2015-05-11|2017-01-31|Zedel|Safety helmet|
    USD779126S1|2015-10-29|2017-02-14|Oakley, Inc.|Helmet|
    CN106039685A|2016-07-26|2016-10-26|张涛|Polyurethane protection helmet for Tae Kwon Do|
    GB201621272D0|2016-12-14|2017-01-25|Mips Ab|Helmet|
    US10602795B2|2017-01-26|2020-03-31|Bell Sports, Inc.|Helmet comprising a segmented shell|
    USD847438S1|2017-09-07|2019-04-30|Oakley, Inc.|Helmet|
    USD877420S1|2017-10-11|2020-03-03|Zedel|Safety helmet|
    USD858894S1|2017-11-20|2019-09-03|Robert T. Bayer|Protective inner shell for a helmet|
    法律状态:
    2015-04-08| PLFP| Fee payment|Year of fee payment: 2 |
    2015-11-06| PLSC| Search report ready|Effective date: 20151106 |
    2016-03-09| PLFP| Fee payment|Year of fee payment: 3 |
    2017-03-13| PLFP| Fee payment|Year of fee payment: 4 |
    2018-03-15| PLFP| Fee payment|Year of fee payment: 5 |
    2020-01-17| ST| Notification of lapse|Effective date: 20191211 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1401016A|FR3020560B1|2014-04-30|2014-04-30|HELMET ADAPTED TO THE CONSTRAINTS OF ITS USE|FR1401016A| FR3020560B1|2014-04-30|2014-04-30|HELMET ADAPTED TO THE CONSTRAINTS OF ITS USE|
    US14/699,250| US20150313307A1|2014-04-30|2015-04-29|Helmet adapted to its usage constraints|
    EP15001282.1A| EP2939556A1|2014-04-30|2015-04-30|Helmet adapted to its use constraints|
    [返回顶部]