• 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 present invention relates to a protective helmet comprising an outer shell (11) and an inner lining, operatively coupled to each other for the absorption of impact shocks, the protective helmet comprises an inner shell arranged between, and operatively coupled to, the outer shell (11) and the inner lining, in which the protective helmet comprises a plurality of spacer elements suitable for coupling the inner shell and the outer shell (11) defining an interspace between these, and in which the spacer elements have a breaking load lower than the breaking loads of the inner shell and the outer shell (11) so that in the event of an impact the spacer elements are subject to breakage before the inner shell and the outer shell (11) and / or at the same time the breakage of at least a portion of the outer shell (11), due to the collapse of the outer shell (11) in the interspace towards the inner shell.
    公开号:CH715257A2
    申请号:CH00986/18
    申请日:2018-08-14
    公开日:2020-02-14
    发明作者:Fabrizio Morello Angelo；Perregrini Alfio；Fortunato Tordi Roberto
    申请人:Tibi Optima Sagl；
    IPC主号:
    专利说明:

    Illlllllllllllllllllllllllllllllllllllllllll
    SWISS CONFEDERATION
    FEDERAL INSTITUTE OF INTELLECTUAL PROPERTY (11) CH 715 257 A2 (51) Int. Cl .: A42B 3/06 (2006.01)
    Patent application for Switzerland and Liechtenstein
    Patent Treaty of 22 December 1978 between Switzerland and Liechtenstein (12) PATENT APPLICATION (21) Application number: 00986/18 (22) Filing date: 14.08.2018 (71) Applicant:
    Tibi Optima Sagl, Via San Gottardo, 129 6648 Minusio (CH) (72) Inventor / inventors:
    Angelo Fabrizio Morello, 6616 Losone (CH)
    Alfio Perregrini, 6900 Lugano (CH)
    Roberto Fortunato Tordi, 20145 Milan (IT) (43) Published application: 14.02.2020 (74) Authorized representative:
    Fiammenghi-Fiammenghi, Via San Gottardo 15
    6900 Lugano (CH) (54) Protective helmet.
    (57) The present invention relates to a protective helmet comprising an outer shell (11) and an inner lining, operatively coupled to each other for the absorption of impact shocks, the protective helmet comprises an inner shell arranged between , and operatively coupled to, the outer shell (11) and the inner lining, in which the protective helmet comprises a plurality of spacer elements suitable for coupling the inner shell and the outer shell (11) defining an interspace between them, and in which the spacer elements have a breaking load lower than the breaking loads of the inner shell and the outer shell (11) so that in the event of an impact the spacer elements are subject to breakage before the inner shell and the outer shell (11) and / or simultaneously with the breakage of at least a portion of the outer shell (11), due to the collapse of the outer shell (l 1) in the cavity towards the inner shell to.
    CH 715 257 A2
    Description Field of the invention [0001] The present invention relates to a helmet, or helmet, designed to protect a user's head against impacts. In particular, the present invention relates to a protective helmet or helmet made in such a way as to absorb, at least partially, the impacts suffered by a user's head.
    [0002] In the following description reference will be made, for brevity, to a motorcycle helmet, but what described can be applied to any type of helmet, or helmet, used to protect a user's head, for example helmets for motorcycle competitions. sports (cars, motorcycles, etc.), bicycle helmets, ski helmets or work helmets (helmets for excavator operators, helmets for construction sites, etc.).
    Prior art [0003] In the state of the art there are different types of helmets typically for sports use or for work use. These helmets, or helmets, are the most widely used and suitable tool for protecting the user's head against impact injuries, therefore they are also called protective helmets, or helmets. In particular, the main purpose is to carry out a protective action against the possibility of any fractures to the skull.
    [0004] In this regard, the essential elements of any type of protective helmet are constituted by an external shell, that is, the portion of the protective helmet in contact with the external environment, and by an internal coating, that is, the portion of the protective helmet with contact with the user's head. The aforementioned essential elements cooperate to absorb the energy caused by a collision following an impact on the user's head.
    [0005] The outer shell is typically made of a shock-resistant material and allows the distribution of impact force in a larger area than that of the impact, reducing the concentration of tensions in a reduced area. The materials commonly used for the construction of the outer shell are thermoplastic materials such as polycarbonate (PC) or acrylonitrile butadiene styrene (ABS), or composite materials (FRP) with glass or carbon fibers in epoxy resin or exclusively carbon or kevlar fibers. .
    [0006] The internal coating is typically made with a material capable of absorbing the energy caused by a crash, for example expanded polystyrene (EPS), expanded polypropylene (EPP) or materials with similar mechanical behaviors. The internal coating is able to gradually collapse following the impact thus reducing the accelerations transmitted to the head.
    [0007] The conformation of the outer shell and of the inner lining is designed in such a way as to obtain a functional coupling of the two elements which allows mutual cooperation in order to contain or avoid impact trauma.
    [0008] It is evident that the design parameters of both the outer shell and the inner lining are essential for obtaining a protective helmet capable of obtaining a gradual and controlled deceleration of the head in the event of an impact, while at the same time defining a functional structure for daily use. In particular, the main elements of the design are the thickness and impact resistance of the outer shell, as well as the thickness and density of the inner lining.
    [0009] Although the design of protective helmets has evolved very quickly over time, one of the main problems today concerns the absorption of the initial impact force. During an impact when the internal lining collapses completely, the part of unabsorbed energy is transferred to the head, often causing serious injuries, in particular injuries that do not occur with a head fracture or, at least on a first investigation, a visible injury soft tissue. Only a residual amount of unabsorbed energy is reduced by the outer shell in an estimated amount of not more than 30%.
    [0010] To improve the absorption capacity of impact forces in impacts, helmets have been developed with internal lining consisting of deformable ABS cones. This solution allows the absorption of energy by bending and / or collapsing the cones, obtaining a better way of absorbing impacts than traditional protective helmets.
    [0011] A further innovation consists in providing the protective helmet with an internal coating made by means of two layers with different densities, that is, an outermost layer, in correspondence with the outer shell, with greater density and an innermost layer, in correspondence with the head. of the user, with lower density. This solution allows, in the event of an impact, to compress the inner layer with a lower density, obtaining a gradual deceleration of the head and the possibility of distributing the impact energy over a larger surface inside the inner lining.
    [0012] A problem relating to the above solutions consists in the fact that the attenuation of the impact energy and, consequently, the protection of the user's head is entrusted to the internal coating, since the outermost coating allows only mechanical protection against impact and not its absorption.
    CH 715 257 A2 [0013] Furthermore, the impact energy is redistributed rather than dissipated, thus maintaining a high risk of causing damage to the soft tissue even in the absence of evident fractures of the cranial theca, in particular during sliding impacts .
    [0014] It would therefore be desirable to have a protective helmet capable of minimizing the above mentioned drawbacks. In particular, it would be desirable to have a protective helmet capable of ensuring better dissipation of impact energy, while preserving the user's head in any type of impact.
    Summary of the invention The object of the present invention is to provide a protective helmet or helmet capable of minimizing the aforementioned problems.
    Another object of the present invention is to provide a protective helmet or helmet capable of considerably reducing the traumatic lesions of the cranial theca and, in particular, of the parietal, temporal, frontal and occipital bones, but also of the soft tissues which are vital for the individual.
    Finally, an object of the present invention is to provide a protective helmet or helmet capable of improving the acoustic and thermal insulation with respect to the surrounding environment.
    [0018] The above mentioned objects are achieved by a protective helmet in accordance with the attached claims.
    [0019] The protective helmet comprising an outer shell and an inner lining, operatively coupled to each other for the absorption of impact shocks, the protective helmet comprises an inner shell arranged between, and operatively coupled to, the outer shell and the inner lining, in which the protective helmet comprises a plurality of spacer elements adapted to couple the inner shell and the outer shell defining an interspace between them, and wherein the spacer elements have a breaking load lower than the breaking loads of the shell inner and outer shell in such a way that in the event of an impact the spacers are subject to breakage before the inner shell and the outer shell and / or simultaneously with the breakage of at least a portion of the outer shell, due to the collapse of the outer shell in the cavity towards the inner shell.
    [0020] In this way, in the event of an impact, the spacer elements separate the inner shell from the outer shell, allowing the latter to collapse to absorb the impact force. In addition, the defined interspace allows for greater thermal and acoustic insulation.
    [0021] The outer shell is provided with one or more notches designed to define a predefined break pattern of the outer shell in the event of an impact.
    [0022] This allows to obtain a more accurate control in the collapse of the outer shell, considerably reducing the traumatic lesions of the cranial theca and, in particular, of the parietal, temporal, frontal and occipital bones, but also of the soft tissues that are vital for the 'individual.
    The notches are defined along the inner surface of the outer shell at the inner shell.
    [0024] In this way, the aesthetics of the protective helmet is preserved while maintaining the functionality required in absorbing the impact forces and allowing you to check the functionality of the helmet even following accidental falls.
    [0025] The carvings define a plurality of impact portions, at least in part alongside each other. Preferably, the carvings define a plurality of impact portions with identical geometry. Even more preferably, the carvings define impact portions with a hexagonal geometry.
    [0026] The realization of suitable impact portions, in particular of impact portions identical preferably to hexagonal geometry, allows to obtain breaks that can adapt to a plurality of cranial cases, without the need to define a customized protective helmet. . In addition, the size of the aforementioned impact portions influences the absorption capacity of the impact energy.
    The spacer elements are shaped in such a way as to obtain a predefined breakage in a breakage portion between the outer shell and the inner shell. Preferably, the spacer elements are hourglass shaped, in which the areas with a larger surface are respectively coupled to the internal and external caps.
    [0028] The hourglass shape offers a wide support base with a central breaking point that allows the management of both direct and sliding traumas.
    The outer cap is removably coupled to the inner cap and / or to the spacer elements. Preferably, said outer cap is provided with a plurality of housings for coupling to the spacer elements.
    [0030] This allows you to change the shape of the outer shell according to the user who uses the protective helmet, or to replace it in the event of breakage due to contained impact forces.
    [0031] The outer shell has a breaking load lower than the inner shell.
    [0032] In this way, it is possible to obtain a better dissipation of energy in the event of an impact, without affecting the inner shell.
    CH 715 257 A2
    Description of the figures [0033] These and further characteristics and advantages of the present invention will become clear from the description of preferred embodiments, illustrated by way of non-limiting example in the attached figures, in which:
    fig. 1 is a perspective view of a first embodiment of the protective helmet, in accordance with the present invention;
    fig. 2a is a schematic view of the absorption portion between the outer shell and the inner shell of the helmet of fig. 1, in correspondence of section A-A;
    fig. 2b is a schematic sectional view of the absorption portion of fig. 2a when the spacer elements are subject to breakage;
    fig. 2c is a schematic sectional view of the absorption portion of fig. 2a when the spacer elements and the outer shell are subject to breakage;
    fig. 3 is a schematic view of the helmet structure of fig. 1, in correspondence of section A-A;
    fig. 4 is a perspective view of a second embodiment of the protective helmet, in accordance with the present invention;
    fig. 5a is a schematic view of the absorption portion between the outer shell and the inner shell of the helmet of fig. 4 at section B-B;
    on fig. 5b is a schematic sectional view of the absorption portion of fig. 5a when the spacer elements are subject to breakage;
    fig. 5c is a schematic sectional view of the absorption portion of fig. 5a when the spacer elements and the outer shell are subject to breakage;
    fig. 6 is a schematic view of the helmet structure of fig. 4, in correspondence with section B-B.
    Detailed description of the invention [0034] With reference to fig. 1 and 4, respectively a first embodiment and a second embodiment of a protective helmet are illustrated, according to the present invention. In particular, in the following the same numbering will be maintained for the same elements but relating to different embodiments.
    For the sake of brevity, in the following description, reference will be made to a motorcycle helmet, but what described can be applied to any type of helmet, or helmet, used to protect a user's head, for example helmets for motorcycle competitions. sports (cars, motorcycles, etc.), bicycle helmets, ski helmets or work helmets (helmets for excavator operators, helmets for construction sites, etc.).
    [0036] Fig. 1 illustrates by way of example the protective helmet 1 of the integral type, but what described can also be applied to helmets of the modular type or without a chin guard. Protective helmets, of any type, can be equipped with a plurality of components, including the comfort padding, the closing strap, the visor and the ventilation system which will not be described in detail below as they are not essential for obtaining the object of the invention.
    [0037] In the embodiment shown in fig. 1, the protective helmet 1 comprises a plurality of layers and, in particular, from the outside to the inside an outer shell 11, an inner shell 21 and an inner lining 31. Although not essential for obtaining the invention, a layer of comfort padding 81 is further provided as illustrated in the detail section in fig. 3.
    [0038] The outer shell 11 is preferably made of light and impact-resistant materials, but at the same time which can be subject to deformation and breakage. Preferably, the materials used for the construction of the outer shell 11 are thermoplastic materials such as polycarbonate (PC) or acrylonitrile butadiene styrene (ABS), which have characteristics suitable for use and a low cost.
    According to the present invention, the outer shell 11 is provided with one or more notches 61 adapted to define a predefined breaking pattern of the outer shell 11 in the event of an impact. Preferably, as illustrated in fig. 1 and in further figs. 2 -2c and 3 according to the first embodiment, the notches 61 are defined along the inner surface 111 of the outer shell 11 in correspondence with the inner shell 21, thus not being visible from the outer surface of the protective helmet 1. In this way, the aesthetics of the protective helmet 1 is preserved while maintaining the functionality required in absorbing the impact forces and allowing to verify the functionality of the protective helmet 1 even following accidental falls.
    [0040] As illustrated in fig. 1, the outer shell 11 according to the first embodiment is characterized by a particular definition of the notches 61 which define a plurality of impact portions 161 at least partially side by side
    CH 715 257 A2 each other. In particular, the notches 61 and the relative impact portions 161 are defined, preferably, in such a way as to outline a structure similar to the sutures of the skull and the related bones that they define. Therefore, the impact portions 161 allow to identify, by way of example, controlled breakages in which they are overcome! impact portions 161 are preferably adapted to cover macro areas of the cranial theca, preferably at least relating to the parietal, temporal, frontal and occipital bones.
    [0041] The thickness of the outer shell 11 can be sized according to the technical and resistance needs, without affecting the technical characteristics of the invention. In the same way, the depth of the notches can be sized according to the technical and resistance needs, without affecting the technical characteristics of the invention.
    [0042] The inner shell 21 is preferably made with a shock-resistant material and allows the distribution of the impact force in a larger area than that of the impact, reducing the concentration of tensions in a reduced area. In this regard, unlike the outer shell 11, the inner shell 21 is not provided with notches to guarantee the greatest possible resistance. Preferably, the materials commonly used for the construction of the inner shell 21 are thermoplastic materials such as polycarbonate (PC) or acrylonitrile butadiene styrene (ABS), or composite materials (FRP) with glass or carbon fibers in epoxy resin or exclusively carbon fibers. or kevlar.
    [0043] Also in this case, the thickness of the inner shell 21 can be sized according to the technical and resistance needs, without affecting the technical characteristics of the invention.
    [0044] The internal coating 31 is preferably made with a material capable of absorbing the energy caused by a crash, for example expanded polystyrene (EPS), expanded polypropylene (EPP) or materials with similar mechanical behaviors. The internal coating 31 shown in fig. 3 is made as a single density monobloc able to collapse progressively following the impact, thus reducing the accelerations transmitted to the head. Also in this case, the type of structure and the thickness of the internal coating 31 can be made and sized according to the technical and resistance needs, without affecting the technical characteristics of the invention.
    [0045] The comfort padding 81, which represents the interface between the entire structure of the protective helmet 1 and the user's head, is preferably made by means of a combination of sponges covered with fabric, or other suitable material, which allow to increase comfort while using the protective helmet 1 but which do not in any way affect the ability of the protective helmet 1 to absorb the stresses to which it can be subjected.
    [0046] The coupling of the layers is made in a way suitable for the absorption of impact shocks, or to allow the absorption of the energy accumulated during the impact of a portion of the protective helmet 1 with a fixed or mobile obstacle.
    [0047] The same sequence of layers corresponds, therefore, to the same coupling sequence between these. In particular, the comfort padding 81 is coupled to the internal lining 31, preferably by means of a coupling of the removable type that can allow maintenance of the padding 81 itself. The internal coating 31, at the same time, is solidly coupled to the internal cap 21, by means of a coupling of the non-removable type, for example fixed by gluing.
    [0048] The latter is, therefore, operationally coupled with both the inner lining 31 and the outer shell 11, the inner shell 21 being arranged between the outer shell 11 and the inner lining 31.
    [0049] The coupling between the inner shell 21 and the outer shell 11 is achieved by means of a plurality of spacer elements 51 having a size such as to create an interspace 41 between the aforementioned caps 11, 21. In fig. 2a-2c and 3 are illustrated by way of example a number equal to five spacer elements 51, but the number of the same may vary according to the area of the caps 11,21 to be coupled, the absorption technical characteristics to be obtained, as well as the characteristics techniques relating to the breaking load of the spacer elements 51 themselves. The coupling between the outer shell 11, the inner shell 21 and the spacer elements 51 defines an absorption portion 10, capable of significantly improving the capacity for absorbing energy from impacts by the protective helmet 1.
    By the term "breaking load" is meant, in the present invention, the limit, in terms of force or external stress applied, beyond which the product, or the material that composes it, is irreparably damaged from the point of view mechanical strength. By way of example, the breaking load can be related to one or more of the following types: tensile breaking load, compression breaking load, straight bending breaking load, torsional breaking load and stress breaking load of cut.
    [0051] The conformation of the spacer elements 51 in the first embodiment illustrated therein is of the hourglass type, that is, with two larger surface areas connected by a section with a smaller surface area. The aforementioned larger surface areas are respectively coupled to the inner shell 21 and the outer shell 11, thus arranging the section with a smaller surface area between them. The central breakage of the 51 spacer elements allows to optimize the management of the impact energy absorption in both direct and sliding traumas.
    [0052] In any case, different conformations of the spacer elements are still possible, according to embodiments not illustrated, provided that the cavity between the internal and external caps is made.
    CH 715 257 A2 [0053] The spacer elements 51 have a breaking load lower than the breaking loads of the aforesaid inner cap 21 as well as the aforesaid outer cap 11. The difference in the breaking load is such that, in the event of an impact, the spacer elements 51 are subject to failure before the inner shell 21 and the outer shell 11. The aforementioned sizing of the breaking loads allows to obtain the collapse of the outer shell 11 in the cavity 41 in the direction of the inner shell 21.
    [0054] It is further possible to size the spacer elements 51 so that the breaking load is such that, in the event of an impact, they are subject to breakage at the same time as the breakage of at least a portion of the outer shell 11, preferably along one or more of the notches with which the latter is provided as described above.
    [0055] Regardless of the conformation of the spacer elements 51, these are shaped in such a way as to obtain a predefined break in a break portion (not shown) arranged between the outer shell 11 and the inner shell 21. In the hourglass configuration illustrated in the figures of the first embodiment, the breaking portion can be obtained in correspondence with the section with the smaller area which joins the two portions provided with the respective surfaces! to greater area.
    [0056] To optimize the shock absorption capacity of the protective helmet 1, the outer shell 11 is further sized so as to present a breaking load lower than that of the inner shell 21. In this way, it is possible to obtain a better dissipation of energy in the event of an impact, without affecting the inner shell 21.
    [0057] In a further embodiment, not illustrated, the outer cap is removably coupled to the inner cap and / or to the spacer elements. In particular, the outer shell can be further provided with a plurality of housings for coupling to the spacer elements.
    [0058] This allows you to change the shape of the outer shell according to the user who uses the protective helmet, or to replace it in the event of breakage due to limited impact forces, for example due to accidental falls.
    [0059] The functionality of the protective helmet 1 is described below, assuming an oblique type impact, often capable of causing a very common injury among motorcycle accidents, ie a "closed head injury" type trauma. This trauma consists in the movement of the soft tissue inside the cranial theca following the accelerations and decelerations transmitted to the head during an impact.
    [0060] In the event of an oblique impact, known helmets are generally unable to absorb the impact energy in such a way as to reduce the angular acceleration of the user's head within safety threshold values. This is because the known helmets are designed to redistribute energy over a larger area than the impact area and resist the impact itself, particularly in the presence of blunt instruments.
    The protective helmet 1, according to the present invention, instead allows to significantly reduce the energy transmitted to the user's head, dissipating a large part of the same energy of the impact in the absorption portion, or through the portion of the protective helmet 1 consisting of the inner shell 21, the outer shell 11 and the relative spacer elements 51. In particular, in the event of an impact, the spacer elements 51 dissipate the energy by means of the controlled breaking of the same at the breaking portion.
    [0062] In figs. 2a and 2b show, respectively, the configuration of a portion of the protective helmet 1 in section before the impact and the same configuration following the impact with a localized force FI applied obliquely with respect to the surface of the outer shell 11, to generate a oblique impact. It is evident that the limit of the breaking load of the spacer elements 51, lower than that of the outer shell 11 and the inner shell 21, allows to dissipate the energy of the impact due to the controlled breakage of the same, transmitting a limited quantity of residual energy to the inner shell 21 and, consequently, to the inner lining 31. The hourglass shape of the 51 spacer elements also offers a wide base of support with a central breaking point that allows the management of both direct and sliding traumas.
    [0063] Fig. 2c illustrates an additional impact energy dissipation capacity, when a localized force F2, greater than the localized force FI, also applied obliquely with respect to the surface of the outer shell 11, to generate an oblique impact. In this case, the protective helmet 1 is able to dissipate the impact energy also by breaking, i.e. the separation of the outer shell 11 from the inner shell 21, allowing the collapse of the outer shell 11 within the cavity 41 for the impact force absorption. As illustrated in fig. 2c, the break of the outer shell 11 is preferably carried out in correspondence with the notches 61, separating the entire impact portion 161. This allows to obtain a more accurate control in the collapse of the outer shell, considerably reducing the traumatic lesions of the cranial theca and, in particular, of the parietal, temporal, frontal and occipital bones, but also of the soft tissues that are vital for the individual.
    [0064] The same behavior illustrated in fig. 2c is also obtained when the breaking load of the spacer elements 51 and the outer shell 11 is such as to allow the breakdown of the aforesaid spacer elements 51 at the same time as the breakage of at least a portion of the outer shell 11.
    [0065] Fig. 4 illustrates by way of example the protective helmet 2 according to a second embodiment, which will not be described in detail in the following, but only as regards the elements which differ from the first embodiment.
    CH 715 257 A2 illustrated in the previous figures, which first embodiment is incorporated therein by reference. In the same way, the numbering of the elements will be kept corresponding to the first embodiment when not modified.
    [0066] The protective helmet 2 according to the second embodiment differs from the first embodiment of the protective helmet 1 in the definition of the notches 62 and the relative impact portions 162 which have an identical geometry, of the hexagonal type. In particular, in the embodiment illustrated in fig. 4 and 6, each spacer element 51 is coupled to a single impact portion 162.
    [0067] According to further embodiments, not illustrated, it is possible to further define impact portions with different geometry between them and / or different from the hexagonal type. Additionally, it is possible that one or more impact portions do not have the spacer element, or coupled to the other impact portions by means of the notches only, leaving the underlying cavity volume completely devoid of other elements.
    [0068] The functionality of the protective helmet 2 will not be described in detail in the following since it corresponds to what was previously described for the protective helmet 1 of the first embodiment and which is mentioned for reference. Compared to the solution with impact portions 161 that copy the bone structure of the cranial theca, the hexagonal geometry allows to obtain controlled fracture areas that are independent of the morphology of the user who wears the protective helmet 2, that is, regardless of the plurality of cases cranial and related sutures. The size of the hexagons also influences the number of the same and, consequently, the number of notches and related impact portions 162 subject to breakage, allowing a greater capacity to absorb energy as the number of portions 162 increases of impact achieved.
    [0069] The protective helmet in accordance with the present invention therefore allows to considerably reduce the energy transmitted to the cranial theca and, consequently, to the user's soft tissues.
    [0070] The energy absorption capacity makes it possible to reduce the problems connected with any impacts and, in particular, to reduce the consequences of trauma from oblique impacts, such as the "closed head injury".
    [0071] Furthermore, the use of a cavity allows to improve the thermal characteristics of the helmet, obtaining better insulation from the external environment both in hot temperatures and in cold temperatures.
    权利要求:
    Claims (10)
    [1]
    1. Protective helmet (1; 2) comprising an outer shell (11) and an inner lining (31), operatively coupled to each other for the absorption of impact shocks, said protective helmet (1; 2) it is characterized in that it comprises an inner cap (21) arranged between, and operatively coupled with, said outer cap (11) and said inner lining (31), wherein said protective helmet (1; 2) comprises a plurality of spacer elements (51) adapted to couple the said inner cap (21) and the said outer cap (11) defining an interspace (41) between these, and in which the said spacer elements (51) have a breaking load lower than breaking loads of said inner cap (21) and of said outer cap (11) so that in case of impact the said spacer elements (51) are subject to breakage before said inner cap (21) and said cap ( 11) external and / or contextually to the breaking of at least a portion of said outer cap (11), for the collapse of said outer cap (11) in said cavity (41) towards said inner cap (21).
    [2]
    Protective helmet (1; 2) according to claim 1, wherein said outer shell (11) is provided with one or more notches (61; 62) capable of defining a predefined breaking pattern of said outer shell (11) in case of impact.
    [3]
    Protective helmet (1; 2) according to claim 2, wherein said notches (61; 62) are defined along the internal surface (111) of said outer cap (11) in correspondence with said inner cap (21).
    [4]
    Protective helmet (1; 2) according to claim 2 or 3, wherein said notches (61; 62) define a plurality of impact portions (161; 162), at least in part side by side to each other .
    [5]
    5. Protective helmet (2) according to claim 4, wherein said notches (62) define said impact portions (162) with identical geometry, preferably with hexagonal geometry.
    [6]
    Protective helmet (1; 2) according to one or more of claims 1 to 5, wherein said spacer elements (51) are shaped in such a way as to obtain a predefined breakage in a breakage portion between said cap (11 ) outside and said inner cap (21).
    [7]
    Protective helmet (1; 2) according to one or more of claims 1 to 6, wherein said spacer elements (51) are hourglass shaped, in which the areas with a larger surface are respectively coupled to said cap (21) internal and to said external cap (11).
    [8]
    Protective helmet (1; 2) according to one or more of claims 1 to 7, wherein said outer cap (11) is coupled to said inner cap (21) and / or to said spacer elements (51) so removable.
    CH 715 257 A2
    [9]
    9. Protective helmet according to claim 8, wherein said outer shell is provided with a plurality of housings for coupling to said spacer elements.
    [10]
    Protective helmet (1; 2) according to one or more of claims 1 to 9, wherein said outer cap (11) has a lower breaking load than said inner cap (21).
    CH 715 257 A2

    CH 715 257 A2

    CH 715 257 A2
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    同族专利:
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    引用文献:
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    优先权:
    申请号 | 申请日 | 专利标题
    CH00986/18A|CH715257B1|2018-08-14|2018-08-14|Protective helmet.|CH00986/18A| CH715257B1|2018-08-14|2018-08-14|Protective helmet.|
    US17/265,329| US20210315308A1|2018-08-14|2019-08-14|Protective helmet|
    PCT/IB2019/056905| WO2020035807A1|2018-08-14|2019-08-14|Protective helmet|
    [返回顶部]