Helmet

Abstract

A helmet (1) comprising: an outer shell (2); a headrest configured to be mounted on the top of the head of a wearer of the helmet; wherein the headrest is suspended within the outer shell such that, in use, an air gap (21) is provided between the headrest and the outer shell; the headrest comprises a plurality of straps (20) configured to extend across the top of the head of a wearer of the helmet and a headband (30) extending at least partially around the head of a wearer of the helmet and around an anterior-posterior axis; and the helmet further comprises: a head engagement device (40) provided on a surface of the headrest configured to face the head of a wearer of the helmet such that the head engagement device is movable relative to the headrest; and a head engagement device support (80) configured to inhibit movement of the head engagement device through a gap between the straps and / or the headband of the headrest to the air gap between the headrest and the outer shell.

Description

Technical Field

[0001] This invention relates to a helmet. Background Technology

[0002] Impact protection devices are typically designed to reduce the energy transmitted to an object (such as a person to be protected) upon impact. This can be achieved through energy-absorbing devices, energy-redirecting devices, or a combination thereof. Energy-absorbing devices may include energy-absorbing materials (such as foam materials) or structures configured to deform elastically and / or plastically in response to impact. Energy-redirecting devices may include structures configured to slide, shear, or otherwise move in response to impact.

[0003] Impact protection devices include protective clothing used to protect the wearer. Protective clothing including energy-absorbing and / or energy-redirecting devices is known. For example, such devices are widely used in protective helmets (e.g., protective helmets).

[0004] Examples of helmets that include energy-absorbing and energy-redirecting devices include WO 2001 / 045526 and WO2011 / 139224 (both incorporated herein by reference). Specifically, these helmets include at least one layer formed of energy-absorbing material and at least one layer that is movable relative to the helmet wearer's head upon impact.

[0005] Implementing moving parts in a helmet is challenging. For example, ensuring that friction between moving parts under impact can be overcome to allow sufficient relative movement between them is challenging. Ensuring that the helmet can be manufactured and assembled relatively easily is also challenging.

[0006] The object of this invention is to provide a helmet that at least partially solves some of the problems discussed above. Summary of the Invention

[0007] According to one aspect of this disclosure, a helmet is provided, comprising: an outer shell; a headrest configured to be mounted on the head of a helmet wearer; wherein the headrest is suspended within the outer shell such that an air gap is provided between the headrest and the outer shell during use; the headrest includes a plurality of straps and a headband, the plurality of straps being configured to extend across the head of the helmet wearer, and the headband at least partially surrounding the head of the helmet wearer and extending about a front-rear axis; and the helmet further includes: a head engagement device disposed on a surface of the headrest and configured to face the head of the helmet wearer, such that the head engagement device is movable relative to the headrest; and a head engagement device support configured to prevent the head engagement device from moving through the gap between the straps and / or the headband of the headrest into the air gap between the headrest and the outer shell.

[0008] In one arrangement, the head engagement device support includes a crown portion and at least one limb portion, the crown portion being connected to at least one strap at a position corresponding to the top of the helmet wearer's head, and at least one limb portion extending from the crown portion to and connecting to the head ring.

[0009] In one arrangement, the head engagement device support includes at least two limb portions, each limb portion extending from the crown portion to a position on the headband corresponding to a side of the helmet wearer's head.

[0010] In one arrangement, the head engagement device support includes: at least one limb portion extending from the crown portion to a position on the headband corresponding to the front of the helmet wearer's head, and / or at least one limb portion extending from the crown portion to a position on the headband corresponding to the rear of the helmet wearer's head.

[0011] In one arrangement, the crown portion of the head engagement device support includes at least one groove; and the head engagement device support is connected to the head seat by at least one strip of the head seat passing through at least one groove in the crown portion.

[0012] In one arrangement, the crown portion of the head engagement device support is connected to the head seat via an extension of the crown portion of the head engagement device support, the extension extending around at least one strip and connected to itself.

[0013] In one arrangement, at least one limb portion of the head engagement device support is connected to the head ring via the end of the limb portion, the end of the limb portion extending around a portion of the head ring and connected to itself.

[0014] In one arrangement, the helmet includes at least one connector configured to connect a head engagement device to a head engagement device support while allowing the head engagement device to move relative to the head engagement device support.

[0015] In one arrangement, at least one connector is provided on the crown portion of the head engagement device support.

[0016] In one arrangement, at least one connector is provided on the limb portion of the head engagement device support.

[0017] In one arrangement, at least one connector on the limb portion of the head engagement device support is disposed at the location where the limb portion is connected to the head ring.

[0018] In one arrangement, the connector includes a sheet of resilient deformable material; and the resilient deformable material sheet is connected in an inner region to one of a head engagement device support and a head engagement device, and in a peripheral region to the other of a head engagement device support and a head engagement device.

[0019] In one arrangement, the head engagement device support includes at least one outer surface formed of fabric or felt.

[0020] In one arrangement, the head engagement device support is formed of a material comprising a foam layer laminated between two layers of fabric or felt; and the foam layer is stiffer than the fabric or felt layer.

[0021] In one arrangement, the head engagement device support is formed of two layers of fabric or felt, with a plastic plate inserted between the two layers of fabric or felt, the plastic plate having a shape corresponding to at least a portion of the head engagement device support.

[0022] In one arrangement, a low-friction interface is provided between the head engagement device and at least one of the head seat and the head engagement device support.

[0023] In one arrangement, the low-friction interface is provided by a low coefficient of friction between the surfaces of the head engagement device and the head seat and / or the head engagement device support.

[0024] In one arrangement, the head engagement device is connected to the head seat.

[0025] In one arrangement, the headstock includes a plurality of strips extending between a pair of opposing connection points on the outer casing.

[0026] In one arrangement, the head engagement device is configured as a separate component.

[0027] In one arrangement, the head engagement device is formed by multiple separate parts.

[0028] In one arrangement, the head engagement device includes a crown region and a front region, the crown region being configured between the top of the helmet wearer's head and the head seat, and the front region being configured adjacent to the headband.

[0029] In one arrangement, the head engagement device further includes a central region that connects the crown region to the anterior region.

[0030] In one arrangement, the head-fitting device includes a material plate, which is optionally shaped to conform to the head of the wearer of the helmet.

[0031] In one arrangement, when the helmet is not subjected to impact, the gap between the outer shell and the headrest at a position corresponding to the top of the wearer's head, provided by the air gap, is at least 10 mm, optionally at least 15 mm, optionally at least 20 mm, optionally at least 30 mm, optionally at least 40 mm. Attached Figure Description

[0032] The present invention will now be described in detail with reference to the accompanying drawings, wherein:

[0033] Figure 1 A cross-section through the first example helmet is schematically shown;

[0034] Figure 2 A cross-section through the second example helmet is schematically shown;

[0035] Figure 3 A cross-section through the third example helmet is schematically shown;

[0036] Figure 4 A cross-section through the fourth example helmet is schematically shown;

[0037] Figure 5 Showing according to Figure 1 The interior of the helmet example shown;

[0038] Figure 6 , Figure 7 and Figure 8 Show Figure 5 The connectors used in the helmet are arranged as shown.

[0039] Figure 9 The interior of another example of a helmet is shown;

[0040] Figure 10 The interior of another example of a helmet is shown;

[0041] Figure 11 The interior of another example of a helmet is shown;

[0042] Figure 12 The interior of another example of a helmet is shown;

[0043] Figure 13 Shown from the side Figure 12 The helmet;

[0044] Figure 14 Showing a head-jointing device support used inside a helmet;

[0045] Figure 15 Showing contains Figure 14 Helmet with head-jointing support components;

[0046] Figure 16An alternative head engagement device support is shown;

[0047] Figure 17 Showing contains Figure 16 Helmet with head-jointing support components;

[0048] Figure 18 Alternative arrangements of the head engagement device support are shown;

[0049] Figure 19 and Figure 20 The arrangement of the straps connecting the head-mounted device support to the helmet is shown;

[0050] Figure 21 The arrangement of the head-joint support connecting to the helmet's headband is shown;

[0051] Figure 22 and 23 An example location is shown for the connector that connects the head engagement device to the head engagement device support.

[0052] Figure 24 The interior of an example helmet containing a head-jointing support is shown;

[0053] Figure 25 A schematic cross-sectional structure of the head engagement device support is shown;

[0054] Figure 26 Alternative structures for the head engagement device support are shown; and

[0055] Figure 27 An example of a connector is shown. Detailed Implementation

[0056] It should be noted that the accompanying drawings are schematic, and for clarity, the proportions of the thicknesses of the various layers and / or any gaps between the layers depicted in the drawings may be exaggerated or reduced, and can of course be adjusted as needed and required.

[0057] The following is for reference Figures 1 to 4 Describe the general features of the example helmet.

[0058] Figures 1 to 4 An example helmet 1 including an outer layer 2 or shell is shown. The purpose of the outer layer 2 may be to provide rigidity to the helmet. This can help to spread impact energy over a larger area of ​​the helmet 1. The outer layer 2 may also provide protection against objects that may puncture the helmet 1. Therefore, the outer layer 2, for example, may be a relatively strong and / or rigid layer compared to the energy-absorbing layer 3. The outer layer 2, for example, may be a relatively thin layer compared to the energy-absorbing layer 3.

[0059] The outer layer 2 can be formed of a relatively strong and / or rigid material. Preferred such materials include polymeric materials, such as polycarbonate (PC), polyvinyl chloride (PVC), high-density polyethylene (HDPE), or acrylonitrile-butadiene-styrene (ABS). Advantageously, the polymeric material can be fiber-reinforced, using materials such as glass fiber, aramid, Twaron, carbon fiber, and / or Kevlar.

[0060] like Figure 4 As shown, one or more outer plates 7 can be attached to the outer layer 2 of the helmet 1. The outer plate 7 can be formed of a relatively strong and / or rigid material, such as the same type of material that can be formed into the outer layer 2. The material used to form the outer plate 7 can be the same as or different from the material used to form the outer layer 2.

[0061] Figure 4 The helmet is configured so that the outer plate 7 can slide relative to the outer layer 2 in response to an impact. The sliding interface can be located between the outer plate 7 and the outer layer 2.

[0062] To reduce friction at the sliding interface, a friction reduction device can be provided by forming an outer layer 2 and / or an outer plate 7 from a low-friction material; by providing an additional low-friction layer on the surface of the outer layer 2 and / or the outer plate 8 facing the sliding interface, which is done by applying a low-friction coating to the outer layer 2 and / or the outer plate 7, and / or by applying a lubricant to the outer layer 2 and / or the outer plate 7.

[0063] Figure 4 The helmet 1 shown also includes several connectors 5 connected to the outer panel 7. The connectors 5 are also connected to the outer layer 2 to allow relative sliding between the outer panel 7 and the outer layer 2. Alternatively or additionally, one or more of the connectors 5 may be connected to another part of the remainder of the helmet 1, such as the energy-absorbing layer 3. The connectors 5 may also be connected to two or more parts of the remainder of the helmet 1.

[0064] In this arrangement, in the event of an impact on helmet 1, the impact can be expected to occur on one or a limited number of outer plates 7. Therefore, by configuring the helmet such that one or more outer plates 7 can move relative to the outer layer 2 and any unimpacted outer plates 7, the impact-receiving surface (i.e., one or a limited number of outer plates 7) can move relative to the rest of helmet 1. In the event of an impact, this can reduce the rotational acceleration of the wearer's head.

[0065] It should be understood that this arrangement of outer plate 7 can be added to any helmet described herein.

[0066] Figures 2 to 4An example helmet 1 including an optional energy-absorbing layer 3 is shown. The purpose of the energy-absorbing layer 3 is to absorb and dissipate energy from an impact, thereby reducing the energy delivered to the helmet wearer. Within the helmet 1, the energy-absorbing layer can be the primary energy-absorbing element. Although other elements of the helmet 1 may absorb this energy to a more limited extent, this is not their primary purpose.

[0067] The energy-absorbing layer 3 can more effectively absorb the radial component of energy from an impact rather than the tangential component. The term "radial" generally refers to a direction roughly toward the center of the wearer's head, for example, roughly perpendicular to the outer surface of the helmet 1. The term "tangential" can refer to a direction substantially perpendicular to the radial direction in a plane that includes both the radial and impact directions.

[0068] The energy-absorbing layer can be formed of an energy-absorbing material (e.g., a foam material). Preferred such materials include expanded polystyrene (EPS), expanded polypropylene (EPP), expanded polyurethane (EPU), vinyl nitrile foam; or strain rate sensitive foam (e.g., under the brand name Poron). TM and D3O TM Those being sold).

[0069] Alternatively or additionally, the energy-absorbing layer may have a structure that provides energy absorption properties. For example, the energy-absorbing layer may include deformable elements, such as cells or finger-like protrusions, which deform upon impact to absorb and dissipate the energy of the impact.

[0070] like Figure 3 As shown, the energy absorption layer 3 of the helmet 1 can be divided into outer components and inner components 3A and 3B. These components 3A and 3B can be configured to rotate relative to each other.

[0071] The energy-absorbing layer is not limited to a specific arrangement or material. The energy-absorbing layer 3 can be provided by multiple layers with different arrangements (i.e., formed of different materials or with different structures). The energy-absorbing layer 3 can be a relatively thick layer. For example, it can be the thickest layer of the helmet 1.

[0072] In use, the energy-absorbing material layer can be provided as a shell on virtually all surfaces of the rigid shell facing the wearer's head, although ventilation holes may be provided. Alternatively or additionally, localized energy-absorbing material areas may be provided between the rigid shell and the headrest (as described below). For example, an energy-absorbing material strip may be provided around the lower edge of the outer shell, and / or an energy-absorbing material segment may be provided above the wearer's head.

[0073] In some example helmets, the dimensions of the outer layer 2 and / or the energy-absorbing layer 3 can be adjustable to provide a customized fit. For example, the outer layer 2 can be positioned in separate front and rear sections. The relative positions of the front and rear sections can be adjusted to change the dimensions of the outer layer 2. To avoid gaps in the outer layer 2, the front and rear sections can overlap. The energy-absorbing layer 3 can also be positioned in separate front and rear sections. These can be arranged such that the relative positions of the front and rear sections can be adjusted to change the dimensions of the energy-absorbing layer 3. To avoid gaps in the energy-absorbing layer 3, the front and rear sections can overlap.

[0074] Figure 1 An example helmet 1 is shown, which includes a headrest 20. Although in Figures 2 to 4 Although not shown, these example helmets also include a headrest 20. The headrest 20 can be configured to mount the helmet 1 onto the wearer's head. In some arrangements, this can improve wearer comfort.

[0075] The headrest 20 can be provided in any form and serves to facilitate mounting the helmet to the wearer's head. In some configurations, it may help secure the helmet 1 to the wearer's head, but this is not necessary. The headrest 20 can be configured to at least partially conform to the wearer's head. For example, the headrest 20 may be resilient and / or may include adjustment mechanisms for adjusting the size of the interface layer 20. In one arrangement, the headrest 20 may engage with the top of the wearer's head.

[0076] The headrest 20 may be removable. This allows the headrest 20 to be cleaned and / or allows for the provision of an interface layer that can be configured to suit a particular wearer.

[0077] like Figure 1 As shown, the headrest 20 is suspended within the rest of the helmet, for example, within a cavity formed in the helmet for accommodating the head (e.g., the outer shell 2 and / or optional energy-absorbing layer 3), thereby providing an air gap 21 between the rest of the helmet and the headrest 20. The headrest 20 can be connected to the rest of the helmet (e.g., to the outer shell 2 and / or optional energy-absorbing layer 3) via a connector 25. This type of helmet is typically used for industrial purposes, such as for construction workers, miners, or industrial machinery operators. However, helmets based on this arrangement can be used for other purposes.

[0078] In such Figure 1 In the helmet 1 shown, an air gap 21 is provided between the inner surface of the outer shell 2 and the headrest 20 to ensure that the load caused by the impact on the outer shell 2 is distributed on the wearer's head. In particular, the load is not limited to the point on the wearer's head adjacent to the point of impact on the helmet 1. Instead, the load is distributed on the outer shell 2, then on the headrest 20, and thus on the wearer's skull.

[0079] During an impact, some of the impact energy can be absorbed through deformation of helmet components (such as the headrest), reducing the size of the air gap. Therefore, the size of the air gap 21 between the outer shell 2 and the headrest 20 can be chosen to ensure that the headrest 20 does not contact the outer shell 2 under impact forces below the helmet's design threshold (i.e., the air gap 21 is not completely eliminated), allowing the impact to be transmitted directly from the hard shell to the headrest 20. However, in some example helmets, for impacts exceeding the threshold force, the gap 21 can be eliminated, for example at a designated location (such as the impact point), allowing the rest of the helmet to contact the headrest 20. Such example helmets may include an energy-absorbing layer 3 disposed in the space that was otherwise empty and formed the air gap 21. In other words, a portion of the air gap 21 can be replaced by the energy-absorbing layer. This allows the rest of the helmet to be closer to the headrest 20.

[0080] In one arrangement, the helmet 1 can be configured such that, in the absence of impact to the helmet, the gap between the outer shell 2 and the headrest 20 at the position corresponding to the wearer's head is at least 10 mm, optionally at least 15 mm, optionally at least 20 mm, optionally at least 30 mm, optionally at least 40 mm. The magnitude of the impact the helmet 1 is designed to withstand, and therefore the size of the air gap 21, can depend on the intended use of the helmet 1. It should be understood that, depending on the intended use of the helmet, the size of the air gap 21 can be different at different locations. For example, the air gap 21 at the front, rear, or side of the helmet can be smaller than the air gap at the position corresponding to the wearer's head.

[0081] In arrangements that include an energy-absorbing layer, the energy-absorbing layer can contribute to the helmet's ability to withstand radial impacts. Particularly in arrangements where the energy-absorbing material is placed within an air gap between the outer shell 2 and the headrest 20, located at a position corresponding to the wearer's head, it should be understood that the gap between the surface of the headrest and the energy-absorbing layer will be smaller than the gap between the outer shell and the headrest, and this gap can be completely eliminated. Furthermore, due to the effect of the energy-absorbing material during radial impacts, the gap between the outer shell and the headrest may need to be smaller than in the case of no energy-absorbing material.

[0082] In some arrangements, headrest 20 may include a headband or head loop that at least partially surrounds the wearer's head. Alternatively or additionally, headrest 20 may include one or more straps extending across the top of the wearer's head. Alternatively or additionally, headrest 20 may include a cap or shell that covers the upper portion of the wearer's head. Straps or bands forming part of the headrest may be made of nylon fabric. Other materials may be used alternatively or additionally.

[0083] Figure 5 Showing Figure 1 An example of a helmet of the type shown is provided. As illustrated, the headband includes multiple straps 20 that extend across the wearer's head. The straps 20 can be connected to the housing 2 at connection points using any of a variety of known methods. For example, the housing 2 can be molded to include a socket into which a connector 25 can be inserted.

[0084] exist Figure 5 In the arrangement shown, the headband is formed by two strips 20, each strip extending between a pair of connectors 25 positioned such that the strips 20 extend across the wearer's head. For example, the first strip 20 may extend from a rear left position to a front right position, and the second strip 20 may extend from a rear right position to a front left position. However, it should be understood that many other arrangements can be used. For example, additional strips may be provided, such that three, four, or more strips extend across the wearer's head. Similarly, the positions of the connection points between the strips 20 and the rest of the helmet 1 can be... Figure 5 The differences are shown.

[0085] In an arrangement where different straps 20 are close to each other, for example, at the top of the wearer's head, the straps 20 may not be connected to each other, allowing some movement of one strap relative to another. In other arrangements, the straps 20 may be connected to each other where they intersect. In yet another arrangement, the headband may include one or more straps extending from their connection points on the rest of the helmet 1 to their points of connection with other straps, for example, at a position corresponding to the top of the helmet wearer's head.

[0086] Additional straps (such as a chin strap) can be provided to secure the helmet 1 to the wearer's head.

[0087] like Figure 5 As shown, the helmet 1 also includes a head engagement device 40. The head engagement device 40 is mounted on the surface of the headstock (i.e., Figure 5 On the strip 20 in the arrangement shown, when the wearer wears the helmet 1, the strip 20 faces the wearer's head. In other words, the head engagement device 40 is located on the side of the headrest 20 opposite to the air gap existing between the headrest 20 and the outer shell 2.

[0088] As discussed in further detail below, the head engagement device 40 is mounted such that it is movable relative to the headrest 20. In other words, the head engagement device 40 and the headrest 20 are not fixedly connected to each other. A low-friction interface can be provided between the headrest 20 and the head engagement device 40. This facilitates movement of the head engagement device 40 relative to the headrest 20 in the event of an impact to the helmet 1.

[0089] When the helmet 1 is subjected to an oblique impact while being worn by the wearer, the ability of the head engagement device 40 to move relative to the head seat 20 allows the helmet 1 to move (e.g., rotate) relative to the wearer's head.

[0090] The low-friction interface between the headstock 20 and the head engagement device 40 can be achieved by any of a variety of methods. For example, the head engagement device 40 can be formed of a material that provides a sufficiently low coefficient of friction between itself and the headstock 20. For example, the head engagement device 40 can be formed of polypropylene (PP), nylon, polycarbonate (PC), polyketone, or any other low-friction material (such as those discussed above). By selecting appropriate materials to form one or both of the headstock and the head engagement device, a low-friction interface can be provided without providing additional components and / or surface treatments.

[0091] In other arrangements, one or both of the surfaces of the head seat 20 and the head engagement device 40 at their point of contact may be provided with separate sliding facilitators (e.g., a sheet of low-friction material or a coating of another material), which may be another polymer with a low coefficient of friction or a piece of fabric or felt, or a lubricant may be applied thereto.

[0092] Possible low-friction materials include wax polymers such as PC, TPU, nylon (e.g., brushed nylon), PTFE, ABS, PVC, PFA, FEP, PE and UHMWPE, Teflon. TM Alternatively, the low-friction layer can be formed from woven or nonwoven fabrics. This low-friction material can have a thickness of approximately 0.1-5 mm, but other thicknesses can also be used, depending on the material chosen and the desired performance.

[0093] If the low-friction material layers are disposed on two opposing surfaces, namely the surface of the head seat 20 and the surface of the head engagement device, these layers can be formed of the same material or different materials. In one example, a polymer material (e.g., PC) can be provided on the surface facing the head seat 20, and the surface of the head seat 20 can be disposed of with a fabric material.

[0094] In some examples, a sliding interface can be provided between two pieces of ribbed fabric arranged such that the rib directions are perpendicular to each other, thus forming a sliding interface between them. Preferably, the ribbed fabric is a warp-knitted fabric. Preferably, the warp-knitted fabric has a dull side and a shiny side, and the respective shiny sides face each other at the sliding interface. The two pieces of fabric can be provided separately to the headstock 20 and the rest of the helmet (e.g., the energy-absorbing layer 3 or the shell 2).

[0095] Alternatively or additionally, lubricating materials, including oils, polymers, microspheres or powders, or combinations thereof, can be used at the sliding interface. For example, these can be applied to the surface of the helmet facing the headrest 20.

[0096] In one example, the low-friction or lubricating material may be a polysiloxane-containing material. Specifically, the material may include (i) an organic polymer, a polysiloxane, and a surfactant; (ii) an organic polymer and a copolymer based on a polysiloxane and an organic polymer; or (iii) a non-elastomeric crosslinked polymer obtained or available by crosslinking a polysiloxane and an organic polymer. Preferred options for such materials are described in WO2017148958.

[0097] In one example, the low-friction material or lubricant may include (i) an olefin polymer, (ii) a lubricant, and optionally a mixture of one or more other agents. Preferred options for such a material are described in WO2020115063.

[0098] In one example, low-friction materials or lubricants may include materials with a density ≤960 kg / m³. 3 The ultra-high molecular weight (UHMW) polymer, preferably an olefin polymer, is described in WO2020115063.

[0099] In one example, the low-friction material or lubricant may include polyketone.

[0100] In some arrangements, it may be desirable to configure a sliding interface such that the static and / or dynamic coefficient of friction between the materials forming the sliding surface at the interface is between 0.001 and 0.3 and / or less than 0.15. The coefficient of friction can be tested by standard methods, such as the standard test method ASTM D1894.

[0101] In some examples, the sliding interface may be provided by a shear layer instead of a low-friction material layer. In such examples, the low-friction material layer described above can be replaced by a shear material or structure. These materials typically consist of two layers that are capable of shearing relative to each other to allow relative sliding between the helmet layers.

[0102] The head engagement device 40 can be attached to the helmet 1 in any suitable manner that allows the head engagement device 40 to move relative to the headstock 20. For example, the head engagement device 40 can be attached to the outer shell 2, for example, via a connector that allows the head engagement device 40 to move relative to the outer shell 2. Such a connector may include an elastic member that is capable of stretching when movement of the head engagement device 40 relative to the outer shell 2 is required.

[0103] In one arrangement, for example, Figure 5 As shown, the head engagement device 40 can be connected to the head base, for example, to one or more strips 20 that are part of the head base.

[0104] When the head engagement device 40 is connected to the head base, a connector 45 can be used, which allows the head engagement device 40 to move relative to the part of the head base to which the head engagement device is connected.

[0105] In one arrangement, connector 45 may have a first end and second ends 46, 47 connected to head engagement device 40 at corresponding first and second positions, and positioned such that the strip 20 of the head assembly is located between connector 45 and head engagement device 40 in the region between the first and second positions on head engagement device 40. In this arrangement, strip 20 may be loosely attached to any part of connector 45, allowing strip 20 to slide relative to connector 45 in the longitudinal direction and / or sideways of connector. However, head engagement device 40 is limited to not being completely removed from strip 20.

[0106] In this arrangement, the connector 45 may be formed of, or covered with, a material that provides a sufficiently low coefficient of friction between the connector 45 and the strip 20, so as not to significantly reduce the movement speed of the head engagement device relative to the headrest, and therefore not to significantly impede the function of the helmet 1. Alternatively or additionally, the connector 45 may be formed of an elastic material such that the strip is movable relative to the first and second portions 46, 47 of the connector 45 connected to the head engagement device 40, to the extent that a portion of the connector 45 does not slip relative to the strip 20, for example by stretching the connector, to allow the desired movement of the head engagement device relative to the headrest.

[0107] In example Figure 5 In the illustrated arrangement, connector 45 can be formed from an elongated segment of material. For example, connector 45 can be formed from a segment of material in the shape of a cord, band, or tape. For example, the cross-section of such material is typically circular or rectangular. The connector can be formed from an elastic material, which, as mentioned above, may benefit the function of the connector in the event of an impact to helmet 1 and / or may facilitate the assembly of helmet 1. In one arrangement, connector 45 can be formed from an elastic material coated with a fabric layer. Connector 45 can alternatively or additionally be formed from silicone, rubber, or other elastic plastic materials.

[0108] The connectors discussed above can be attached to the head engagement device 40 in the first and second positions using any suitable method, including, for example, adhesives or mechanical methods such as snap-fit ​​connections. Alternatively, the two ends of the elongated material can be tied together and / or at least one end can be tied to a portion of the helmet 1 to secure it.

[0109] In one arrangement, such as Figures 6 to 8 As exemplarily shown, the length of the material 50 used to form the connector 45 can be terminated by a component (e.g., a relatively short rod 51). The rod 51 is connected to the elongated material 50 such that the length of the rod 51 is at an angle (optionally perpendicular) to the elongated length of the material. Figure 7 As shown, during assembly, the rod 51 can be inserted along its length into the hole 41 in the head engagement device 40. However, as Figure 8 As shown, the rod 51 then naturally aligns itself with the surface of the head engagement device 40, preventing the rod 51 from returning through the hole. It should be understood that in this arrangement, the hole 41 in the head engagement device 40 can be configured to be larger than the cross-section of the rod 51, but smaller than the length of the rod 51.

[0110] In such Figure 5 In the arrangement shown, the strip 20 is connected to the head-mounted device 40 such that the strip 20 is located on the side of the head-mounted device 40 opposite to the helmet wearer's head. Therefore, the connector 45 is also primarily located on the side of the head-mounted device 40 opposite to the helmet wearer's head. As discussed above... Figures 6 to 8 In the connector arrangement shown, connector 45 can be configured such that the length of the material forming connector 45 extends from the side in contact with strip 20 through hole 41 in head engagement device 40, so that rod 51 is positioned on the surface of head engagement device 40 facing the wearer's head of helmet.

[0111] If this is undesirable, for example, if it affects the comfort of the helmet wearer, or if it is desirable to conceal the rod 51 for aesthetic reasons or to reduce the risk of damage and / or tampering to the connector 45, a second hole 41 may be provided at each location in the head engagement device 40 for securing the connector. In this arrangement, the length of material may pass through one hole from the area where the connector engages with the strip, across the portion of the head engagement device 40 between the two holes 41, and then through the second hole. In this arrangement, the rod 51 is held on the same side of the head engagement device 40 as the strip 20, i.e., on the side of the head engagement device 40 opposite to the wearer's head.

[0112] In one arrangement, each connector 45 may be formed from its own individual elongated material segment. Alternatively, one or more connectors 45 may be formed from several sections of a single elongated material. For example, multiple connectors 45 may be formed in a manner corresponding to those described above, but where a connector 45 connects to the head engagement device 40, the elongated material may extend to another connector 45 in place of the rod 51. In one arrangement, all connectors 45 used to connect the head engagement device 40 to the head seat may be formed from a single length of elongated material.

[0113] like Figure 5 As shown, in an arrangement where the headband includes straps 20 (which extend across the helmet wearer's head between two connection points on the outer shell 2), a pair of connectors 45 can be provided for each strap 20 on opposite sides of the head engagement device 40. Similarly, at least one connector 45 (optionally a pair of connectors 45) can be provided for each strap 20. However, this is not essential. For example, as... Figure 9 As shown, fewer connections can be provided between the head engagement device 40 and the head base (e.g., the strap 20). For example, in Figure 9 In the arrangement shown, connector 45 may be located only at the rear of helmet 1.

[0114] Figure 10 An alternative arrangement for connecting the head engagement device 40 is shown. As shown, the head engagement device 40 may include a hole 60 through which a strip 20, as part of the head base, may pass.

[0115] As discussed above, other arrangements for connecting the head engagement device 40 may be used alternatively or additionally. For example, a resilient deformable connector may be provided between the head seat and the head engagement device 40, such that a first portion of the connector is secured to a portion of the head seat (e.g., strip 20), and a second portion of the connector is secured to a portion of the head engagement device 40. Movement of the head engagement device relative to the head seat may be achieved by stretching and / or other deformation of the connector. Such a connector may be secured to one or both of the surfaces of the head seat and the head engagement device that face each other. The connector may be secured to one or both of the head seat and the head engagement device by any suitable means (e.g., including by hook and loop materials and / or by adhesives).

[0116] like Figure 5 , Figure 9 and Figure 10As shown in the arrangement, the head-jointing device 40 can be provided as a single component (e.g., a single layer of material). However, this is not always the case. For example, the head-jointing device can be formed from multiple separate sections. These separate sections can remain separate and, for example, be individually connected to the headstock and / or other parts of the helmet 1. Alternatively, two or more sections can be joined during helmet assembly. In one arrangement, a separate section of the head-jointing device can be connected to each or a subset of the strips 20 that form or are part of the headstock.

[0117] In one arrangement, the head-mounted device or one or more of its parts can be formed by injection molding or vacuum molding. Therefore, it can be formed into a shape that conforms to the shape of the helmet wearer's head.

[0118] In the arrangement of helmet 1, for example Figure 5 As shown, the headband may include a head loop 30 that engages at least with the forehead of the helmet wearer and may substantially surround the wearer's head. The head loop 30 may be oriented to extend about a craniocaudal axis. It should be understood that such a head loop 30 may be connected to the helmet 1 separately from the rest of the headband (e.g., the strap 20). Alternatively, the head loop 30 may be connected to the helmet 1 via the strap 20. As a further alternative, the strap 20 may be connected to the rest of the helmet 1 via the head loop 30.

[0119] In the helmet 1 including the headband 30, the head engagement device 40 may include a crown region 43 and a front region 44. The crown region 43 is configured between the top of the helmet wearer's head and the head seat (e.g., the strap 20), and the front region 44 is configured to be located near the headband 30 at least in the forehead region of the helmet wearer. The front region 44 of the head engagement device may be arranged such that it is slidable relative to an adjacent portion of the headband. Similarly, other portions of the head engagement device 40 are arranged to be movable relative to other portions of the head seat (e.g., the strap 20 used).

[0120] The front region 44 of the head-jointing device can be connected to the headband and / or the outer shell 2, for example, via a connector configured to allow movement of one part relative to another, thereby enabling the front region 44 of the head-jointing device 40 to move relative to the headband 30. Alternatively or additionally, the front region 44 of the head-jointing device 40 can be connected to the helmet 1 via the middle region 48 of the head-jointing device 40. In particular, the middle region 48 of the head-jointing device 40 can connect the front region 44 to the crown region 43. In one arrangement, the crown region 43, the middle region 48, and the front region 44 of the head-jointing device can be integrally formed from a single sheet of material.

[0121] The middle region 48 of the head-mounted assembly can be configured to perform additional functions beyond simply connecting the crown region 43 to the front region 44. Specifically, in the event of an impact toward the front of the helmet 1, the middle region 48 can help prevent the helmet wearer's forehead from contacting the front region of the outer shell 2. For example, this can be achieved through, for instance... Figure 5 The arrangement shown reduces the tendency for the front of the wearer's head to pass between the two strips 20.

[0122] It should be understood that this arrangement is not essential. The strips 20 used to form the headgear can be positioned to avoid this potential problem in any situation. For example, having a sufficient number of strips 20 and / or strips of sufficient width can avoid or minimize the problem. Alternatively or additionally, strips 20 extending from the front of the helmet can be provided.

[0123] In one arrangement, such as Figure 11 As shown, although the crown region 43 of the head-mounted device 40 is located on the side of the headrest (e.g., the strap 20) facing the wearer's head of the helmet 1, the front region 48 can be located on the opposite side of the headband 30. Therefore, this arrangement can be configured such that the headband 30 is positioned between the helmet wearer's forehead and the front region 48 of the head-mounted device.

[0124] This arrangement may be advantageous if the headband 30, at least in the forehead region, is relatively soft and / or flexible. In this arrangement, the low-friction interface between the front region 48 of the head engagement device 40 and the portion of the headband 30 adjacent to the wearer's forehead will allow the headband 30, and thus the wearer's forehead, to move relative to the front region of the housing 2. As shown, the front region 48 of the head engagement device 40 can be connected to the headband 30 via a connector 49. This connector can be similar to those discussed above or another suitable form of connector that allows relative movement between the connected components.

[0125] like Figure 12 and Figure 13As shown, one or more pads 66, 67 may be provided for the helmet 1. For example, in any of the configurations discussed above, including the front region 44 of the head engagement device 40, the front pad 66 may be positioned adjacent to the helmet wearer's forehead. Depending on the configuration of the helmet 1, the front pad may be connected to one or more of the headband 30, the front region 44 of the head engagement device 40, and the outer shell 2.

[0126] For example, in an arrangement where the front region 44 of the head-jointing device 40 is positioned between the headband 30 and the helmet wearer's forehead, the front pad 66 can be directly connected to the front region 44 of the head-jointing device 40. In this arrangement, the front region 44 of the head-jointing device 40 may include a protrusion or hook 68 that can engage with the front pad 66. Alternatively or additionally, the front pad 66 can be connected to the headband 30 via a resilient connector 69 that engages with a hook or protrusion 70 formed on the headband 30. In this configuration, the resilient connector 69 is configured to be sufficiently stretched so that the front pad 66 can move relative to the headband 30.

[0127] In such Figure 11 In the arrangement shown, a portion of the headband 30 is positioned between the helmet wearer's forehead and the front region 48 of the head engagement device 40, and the front pad can be directly connected to the headband 30. Alternatively or additionally, it can be connected to the housing 2 and / or the front region 48 of the head engagement device 40 via a resilient connector.

[0128] In one arrangement, one or more pads 67 may be disposed on other portions of the head engagement device 40 (e.g., on the crown region 43 of the head engagement device 40). Such pads 67 can be used to improve helmet wearer comfort and / or provide separation of the head engagement device 40 from the wearer's head, promoting ventilation. Figure 12 As shown, the pad 67 can be positioned such that it does not overlap with the location where the connector 45 is provided, for example, to connect the head engagement device 40 to the head seat. Alternatively or additionally, one or more pads 67 can be positioned to cover the connector 45.

[0129] like Figure 12 As shown, one or more holes 43 may be provided in the head engagement device 40. Such holes can facilitate ventilation between the wearer's head and the gap 21 between the headrest 20 and the outer shell 2.

[0130] As described above, the head engagement device 40 may also include one or more holes 41 for engaging the connector. It should be understood that the head engagement device 40 can therefore be provided with holes that can serve to provide ventilation or engage with the connector. Alternatively, different holes may be provided for specific functions.

[0131] It should also be understood that, where holes 41 are provided for engagement with a connector, the head engagement device 40 may provide holes 41 at the locations where engagement with the connector is desired, to fit the head engagement device 40 within a specific design of the helmet. Alternatively, the head engagement device 40 may be provided with a plurality of holes 41 positioned to allow the engagement device 40 to be installed in any of a variety of helmet designs and / or helmet sizes.

[0132] In helmet arrangements such as any of those discussed above, where the headband includes a plurality of straps 20 and a headband 30 that at least partially surrounds the helmet wearer's head, a head engagement device support 80 may be provided, which can improve helmet performance. Specifically, the head engagement device support 80 may be configured to reduce the tendency of the head engagement device 40 to enter the air gap 21 between the headband and the outer shell through the gaps between adjacent straps 20 and / or headband 30 of the headband during impact. When this occurs, it may unfortunately reduce the ability of the head engagement device 40 to rotate relative to the headband.

[0133] As explained in further detail below, the headgear support 80 can be provided as a component separate from the headstock. Therefore, the helmet can be configured such that loads from radial impacts are primarily or entirely supported by the headstock, with the headgear support 80 primarily provided to improve performance under oblique impacts. For example, the headgear support 80 can be added to existing helmet designs that already exhibit satisfactory performance against radial impacts from their headstocks. However, it should be understood that in some arrangements, the headgear support 80 can be configured to contribute to the helmet's radial impact performance.

[0134] In one arrangement, the head engagement device support 80 can be connected to at least one strap 20 of the head seat. Specifically, as... Figure 14 and Figure 15 As shown, the head engagement device support 80 may include a crown section 81 that is connected to at least one strap 20 at a position corresponding to the top of the helmet wearer's head. The head engagement device support 80 also includes at least one limb section 82 that extends from the crown section 81 to the headband 30 and is connected to the headband.

[0135] For example, Figure 15 As shown, the limb portion 82 can be connected to the head ring 30 at a position between the two straps 20 of the head seat. Therefore, the limb portion 82 of the head engagement device support 80 can be used to support the head engagement device, i.e., to prevent the head engagement device 40 from moving through the gap between the straps 20 (for clarity, Figure 15(Not shown in the image). This prevents the head engagement device 40 from being restricted in its movement, i.e., it allows the head engagement device to rotate relative to the head base.

[0136] In example Figure 14 and 15 In the arrangement shown, the head engagement device support 80 may have two limb portions 82. When installed in the helmet 1, the two limb portions 82 of the head engagement device support 80 can be connected to the headband 30 at positions corresponding to the respective sides of the helmet wearer's head. This arrangement can improve the helmet's performance when subjected to tilting impacts to the sides of the helmet.

[0137] In another arrangement, such as Figure 16 and 17 As shown, the head engagement device support 80 includes three limb portions 82 that, when installed inside a helmet, are connected to the headband 30 at respective positions corresponding to the sides and front of the helmet wearer's head. In a variation of this arrangement, the head engagement device support 80 can be installed such that the three limb portions 82 are connected to their respective positions on the headband 30 at the sides and rear of the helmet wearer's head.

[0138] In another variation, such as Figure 18 As shown, the head engagement device support 80 may have four limb portions 82 configured to connect to the headband 30 at respective positions corresponding to the sides, front, and rear of the helmet wearer's head. Generally, it should be understood that the head engagement device support 80 may have any number of limb portions at their respective positions connected to the headband 30.

[0139] The crown portion 81 of the head-joining support 80 can be attached to one or more straps at a location corresponding to the top of the helmet wearer's head by any convenient means. For example, in Figures 14 to 17 In the arrangement shown, the crown portion 81 includes at least one groove 85 through which the strip 20 can pass so that the head engagement device support 80 can be connected to the strip 20. In such a way... Figures 14 to 17 In the arrangement shown, the slots 85 in the crown portion 81 of the head engagement device support 80 can be arranged in pairs. With this arrangement, the strip 20 can pass from the first side of the head engagement device support 80 through the first slot 85 in a pair to the opposite side of the head engagement device support 80, and then return through the second slot 85 in the pair to return to the first side of the head engagement device support 80, so as to provide a secure connection.

[0140] Figure 19 and Figure 20An alternative arrangement is shown for connecting the crown portion 81 of the head-joint device support 80 to the strap 20 of the headrest. Specifically, as shown, the crown portion 81 of the head-joint device support 80 includes an extension 87 that is foldable around at least one strap 20 and connects back to the remaining portion 81 of the crown portion. Figure 19 and 20 In the example shown, the extension 87 of the crown portion 81 has a shape that matches the shape of the crown portion 81. However, it should be understood that this is not necessary. The extension 87 of the crown portion 81 can be connected to the crown portion 81 by one or more suitable connectors 88. The connectors 88 can be formed, for example, from hook and loop materials, snap-fit ​​connectors, and / or adhesives.

[0141] The limb portion 82 of the head engagement device support 80 can be connected to the head ring 30 by any suitable means. In one arrangement, such as Figure 21 As shown, the end 90 of the limb portion 82 may extend around a portion of the headband 30 and connect to itself. The connection between the end 90 of the limb portion 82 and itself may be achieved by providing a connector 91. The connector 91 may be of any suitable form, including, for example, hook and loop materials, snap-fit ​​connectors, and / or adhesives.

[0142] Alternatively or additionally, the limb portion 82 of the head engagement device support 80 may be directly attached to the headband by, for example, snap-fit ​​connection and / or adhesive.

[0143] In a helmet arrangement with a head-jointing device support 80, the head-jointing device 40 can be connected to the head-jointing device support 80 as the sole connection between the head-jointing device 40 and the helmet, or as a supplement to another connection. Any connector between the head-jointing device 40 and the head-jointing device support 80 can be configured to allow the head-jointing device 40 to move relative to the head-jointing device support 80, such that in the event of an impact to the helmet, the head-jointing device 40 can slide relative to the head-jointing device support 80 and the headrest.

[0144] like Figure 22 As shown, in one arrangement, a connector 95 for connecting the head engagement device 40 to the head engagement device support 80 may be provided on the crown portion 81 of the head engagement device support 80.

[0145] Figure 23 An alternative arrangement is shown in which a plurality of connectors 95 between the head engagement device 40 and the head engagement device support 80 are additionally provided at the end of the limb portion 82 at the corresponding position where the limb portion 82 is connected to the head ring 30.

[0146] It should be understood that other arrangements of the connector are also possible. For example, the connector 95 may be located only at the end of the limb portion 82, without a connector at the crown portion 81. Alternatively or additionally, the connector may be located on some limb portions of the limb portion 82, but not on the others. Alternatively or additionally, the connector 95 located on the limb portion 82 may be located at a position other than the end of the limb portion, where the limb portion 82 connects to the headband 30.

[0147] like Figure 24 As shown, once the head-mounted device 40 is installed inside the helmet 1 (e.g., connected to the head-mounted device support 80), it can substantially cover the head-mounted device support 80 and conceal the connector 95. In other arrangements, at least a portion of the head-mounted device support 80 is visible.

[0148] In one arrangement, the connector 95 for connecting the head engagement device 40 to the head engagement device support 80 may be formed of an elastically deformable material so as to allow the head engagement device 40 to move relative to the head engagement device support 80 while maintaining the connection.

[0149] For example, in such Figure 27 In the illustrated arrangement, connector 95 may be formed of a resiliently deformable material sheet 96, arranged such that an inner region 97 of the resiliently deformable material sheet connects to one of the head engagement device support 80 and the head engagement device 40, and a peripheral region 98 of the resiliently deformable material sheet connects to the other of the head engagement device support 80 and the head engagement device 40. Deformation of the resiliently deformable material sheet allows the inner region to move relative to the peripheral region, thereby allowing the head engagement device support 40 to move relative to the head engagement device support 80. It should be understood that other forms of connectors capable of moving between the head engagement device 40 and the head engagement device support 80 may be used.

[0150] To ensure that the head engagement device 40 can move relative to the head engagement device support 80 under impact, a low-friction interface can be provided between the head engagement device 40 and the head engagement device support 80 in a manner similar to that described above between the head engagement device 40 and the head seat.

[0151] In one arrangement, at least the outer surface of the head engagement device support 80 may be formed of fabric or felt, the selected fabric or felt allowing the head engagement device 40 to slide relative to it. Figure 25A cross-section of the head engagement device support 80 is schematically shown. As illustrated, it can have a laminated structure comprising a foam layer 102 between two layers of fabric or felt 101. These layers can be joined by adhesives or by thermal welding. The foam layer 102 can be provided to increase the stiffness of the head engagement device support 80. Therefore, the material of the foam layer 102 can be selected to be stiffer than the fabric or felt layer 101. In one example, the fabric or felt layer 101 can be formed of brushed nylon. In one example, the foam layer 102 can be formed of polyethylene (PE) foam and / or polyurethane (PU) foam, in which case the properties of the foam (e.g., density) can be selected to provide the desired stiffness.

[0152] In one arrangement, instead of a foam layer, the headgear support 80 may include a plastic plate 103 located between two layers of fabric or felt 101. The plastic plate 103 within the headgear support 80 can be formed from any of the materials discussed above suitable for forming the headgear 40. However, it should be understood that in a particular helmet, different materials and / or materials of different thicknesses may be used for the plate 103 within the headgear 40 and the headgear support 80. Figure 26 As shown, in this arrangement, the reinforcing plate 103 disposed within the head engagement device support 80 may correspond only to a portion of the shape of the head engagement device support 80 (e.g., the central region).

[0153] The purpose of helmet layers or components that move or slide relative to each other (such as those discussed above, including the headband and head-mounted assembly) is to redirect impact energy that would otherwise be transmitted to the wearer's head. This improves the protection provided to the wearer against the tangential component of the impact energy, which typically results in rotational acceleration of the wearer's head. This rotation is known to cause brain injury. Helmets with layers or components that move relative to each other have been shown to reduce rotational acceleration of the wearer's head. The typical reduction may be around 25%, but in some cases, the reduction can be as high as 90%.

[0154] Preferably, the relative movement between the helmet layers results in a total offset of at least 0.5 cm between the outermost and innermost helmet layers, more preferably at least 1 cm, and even more preferably at least 1.5 cm. Preferably, the relative movement can occur in any direction (e.g., in the circumferential direction around the helmet, from left to right, from front to back, and any direction in between).

[0155] Regardless of how helmet layers or components are configured to move relative to each other, it is preferable that relative movement (e.g., sliding) occurs under the typical impact forces that the helmet is designed to withstand (e.g., impacts that the wearer is expected to survive). These forces are significantly higher than those the helmet might experience during normal use. Impact forces tend to compress the helmet layers together, increasing the reaction forces between components and thus increasing friction. In cases where the helmet is configured to have layers that slide relative to each other, the interfaces between these layers may need to be configured to slide even under the influence of high reaction forces during an impact.

[0156] The helmets described above can be used in a variety of activities. These activities include combat and industrial uses, such as protective helmets for soldiers and safety helmets or caps used by construction workers, miners, or industrial machinery operators. Helmets are also common in sports activities. For example, protective helmets can be used in ice hockey, cycling, motorsports, motor racing, skiing, snowboarding, skating, skateboarding, equestrian activities, American football, baseball, rugby, football, cricket, lacrosse, rock climbing, golf, air rifles, roller hockey, and paintball.

[0157] Examples of injuries that the helmets described above can prevent or mitigate include mild traumatic brain injuries (MTBI) (such as concussion), severe traumatic brain injuries (STBI) (such as subdural hematomas (SDH), ruptured blood vessels), and diffuse axonal injuries (DAI) (which can be summarized as excessive stretching of nerve fibers due to high shear deformation in brain tissue).

[0158] Depending on the characteristics of the rotational component of the impact (such as duration, amplitude, and rate of increase), one may suffer a concussion, SDH, DAI, or a combination of these injuries. Generally, SDH occurs under short-duration, high-amplitude acceleration conditions, while DAI occurs under longer, more widespread acceleration loads.

[0159] Based on the above teachings, variations of the above examples are possible. It should be understood that the invention may be practiced in other ways, as specifically described herein, without departing from the spirit and scope of the invention.

Claims

1. A helmet, comprising: outer shell; A headrest, configured to be mounted on the top of the head of the wearer of the helmet; The headstock is suspended within the outer casing, thereby providing an air gap between the headstock and the outer casing during use. The headband includes multiple straps and a headband, the multiple straps being configured to extend across the top of the helmet wearer's head, and the headband at least partially surrounding the helmet wearer's head and extending about a front-to-back axis; and The helmet also includes: A head-mounted engagement device, disposed on the surface of the headrest and configured to face the head of the helmet wearer, such that the head-mounted engagement device is movable relative to the headrest; and A head engagement device support member configured to prevent the head engagement device from moving through the gap between the strip and / or the head ring of the head base into the air gap between the head base and the outer shell. The head-jointing device support includes a crown portion and at least one limb portion. The crown portion is connected to at least one of the straps at a position corresponding to the top of the wearer's head. The at least one limb portion extends from the crown portion to the headband and is connected to the headband.

2. The helmet according to claim 1, wherein, The head engagement device support includes at least two limb portions, each of which extends from the crown portion to a position on the headband corresponding to a side of the helmet wearer's head.

3. The helmet according to claim 1 or 2, wherein, The head engagement device support includes: at least one limb portion extending from the crown portion to a position on the headband corresponding to the front of the head of the helmet wearer, and / or at least one limb portion extending from the crown portion to a position on the headband corresponding to the rear of the head of the helmet wearer.

4. The helmet according to claim 1 or 2, wherein, The crown portion of the head-jointing device support includes at least one groove; and the head-jointing device support is connected to the head seat via at least one strip passing through at least one groove in the crown portion of the head seat.

5. The helmet according to claim 1 or 2, wherein, The crown portion of the head-jointing device support is connected to the head seat via an extension of the crown portion of the head-jointing device support, the extension extending around at least one of the strips and connected to itself.

6. The helmet according to claim 1 or 2, wherein, At least one limb portion of the head engagement device support is connected to the head ring via the end of the limb portion, the end of the limb portion extending around a portion of the head ring and connected to itself.

7. The helmet of claim 1, comprising at least one connector configured to connect the head engagement device to the head engagement device support while allowing the head engagement device to move relative to the head engagement device support.

8. The helmet according to claim 7, wherein, At least one connector is provided on the crown portion of the head engagement device support.

9. The helmet according to claim 7 or 8, wherein, At least one connector is provided on the limb portion of the head engagement device support.

10. The helmet according to claim 9, wherein, At least one connector on the limb portion of the head engagement device support is disposed at the location where the limb portion is connected to the head ring.

11. The helmet according to claim 7, 8 or 10, wherein, The connector includes a sheet of elastic, deformable material; and The elastic deformable material sheet is connected to one of the head engagement device support and the head engagement device in the inner region of the elastic deformable material sheet, and the elastic deformable material sheet is connected to the other of the head engagement device support and the head engagement device in the outer region of the elastic deformable material sheet.

12. The helmet according to claim 1 or 2, wherein, The head engagement device support includes at least one outer surface formed of fabric or felt.

13. The helmet according to claim 12, wherein, The head engagement device support is formed of a material comprising a foam layer laminated between two layers of fabric or felt; and The foam layer is stiffer than the fabric or felt layer.

14. The helmet according to claim 12, wherein, The head engagement device support is formed of two layers of fabric or felt, with a plastic plate inserted between the two layers of fabric or felt. The plastic plate has a shape corresponding to at least a portion of the head engagement device support.

15. The helmet according to claim 1 or 2, wherein, A low-friction interface is provided between the head engagement device and at least one of the head seat and the head engagement device support.

16. The helmet according to claim 15, wherein, The low-friction interface is provided by the low coefficient of friction between the head engagement device and the surface of the head seat and / or the head engagement device support.

17. The helmet according to claim 1 or 2, wherein, The head engagement device is connected to the head base.

18. The helmet according to claim 1 or 2, wherein, The headstock includes a plurality of strips extending between a pair of opposing connection points on the outer casing.

19. The helmet according to claim 1 or 2, wherein, The head engagement device is configured as a separate component.

20. The helmet according to claim 1 or 2, wherein, The head engagement device is formed from multiple separate parts.

21. The helmet according to claim 1 or 2, wherein, The head-mounted device includes a crown region and a front region, the crown region being configured between the top of the helmet wearer's head and the headband, and the front region being configured adjacent to the headband.

22. The helmet according to claim 21, wherein, The head-jointing device also includes a middle region that connects the crown region to the anterior region.

23. The helmet according to claim 1 or 2, wherein, The head-fitting device includes a material plate shaped to conform to the head of the helmet wearer.

24. The helmet according to claim 1 or 2, wherein, When the helmet is not subjected to impact, the gap between the outer shell and the headrest at a position corresponding to the top of the wearer's head, provided by the air gap, is at least 10 mm.

Images