Connector

Abstract

According to a first aspect of the present disclosure, there is provided a connector (20) for connecting a first portion and a second portion of a device, the connector comprising: a first attachment portion (21) arranged on a first side of the connector and configured to be attached to the first portion of the device, causing the first side of the connector to face a first direction towards the first portion of the device; a first low friction layer (22) disposed on the first side of the connector and configured to reduce friction between the connector and the first portion of the device; a deformable layer (23) formed of a deformable material, disposed at least between the first attachment portion and the first low friction layer, extending in a direction substantially perpendicular to the first direction, and configured to allow the first attachment portion and the first low friction layer to move relative to each other in the direction substantially perpendicular to the first direction.

Description

Technical Field

[0001] The present disclosure relates to a connector for connecting a first part and a second part of a protection device. Background Art

[0002] Impact protection devices are generally intended to reduce the energy transferred from an impact to an object, such as a person to be protected. This can be achieved by 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 an impact. Energy redirecting devices may include structures configured to slide, shear, or otherwise move in response to an impact.

[0003] Impact protection devices include protective clothing for protecting the wearer of the clothing. Protective clothing including energy absorbing devices and / or energy redirecting devices are known. For example, such devices are widely used in protective headgear, such as helmets.

[0004] Examples of helmets including energy absorbing and redirecting devices include WO 2001 / 045526 and WO 2011 / 139224 (the entire contents of which are incorporated herein by reference). Specifically, these helmets include at least one layer formed of energy absorbing material and at least one layer capable of moving relative to the head of the wearer of the helmet under impact.

[0005] Implementing moving parts in a protective device can be challenging. For example, it can be challenging to connect two layers of a device in a way that allows for sufficient relative movement of the components of the device under impact but maintains the structural integrity of the device. It can be challenging to ensure that the connector can be manufactured and assembled relatively easily.

[0006] Further, ensuring the desired relative movement between moving parts under impact may be challenging. Ensuring that the device can be manufactured and assembled relatively easily may be challenging.

[0007] An object of the present invention is to provide a connector and a device including the connector which at least partially solves some of the above problems. Summary of the invention

[0008] According to a first aspect of the present disclosure, a connector for connecting a first part and a second part of a device is provided, the connector comprising: a first attachment portion, which is arranged on a first side of the connector and is configured to be attached to the first part of the device so that the first side of the connector faces a first direction toward the first part of the device; a first low-friction layer, which is arranged on the first side of the connector and is configured to reduce friction between the connector and the first part of the device; and a deformable layer, which is formed of a deformable material, is at least arranged between the first attachment portion and the first low-friction layer, extends in a direction substantially perpendicular to the first direction, and is configured to allow the first attachment portion and the first low-friction layer to move relative to each other in a direction substantially perpendicular to the first direction.

[0009] Optionally, the deformable layer is formed from a sheet of deformable material. Optionally, the deformable material is a sheet of stretchable fabric. Optionally, the first attachment portion is arranged on a first side of the sheet of deformable material. Optionally, the first low friction layer is arranged on the first side of the sheet of deformable material.

[0010] Optionally, the low friction layer is formed from a sheet of low friction material.

[0011] Optionally, the first low friction layer is flexible.

[0012] Optionally, the first low friction layer is formed by a thin layer of plastic. Optionally, the plastic is polycarbonate.

[0013] Optionally, the thickness of the first low-friction layer is not greater than 0.5 mm.

[0014] Optionally, the low friction layer surrounds the first attachment portion. Optionally, the low friction layer is annular.

[0015] Optionally, the first attachment portion comprises hook and loop material. Optionally, the first attachment portion comprises a disc of hook and loop material.

[0016] Optionally, the connector further comprises a second attachment portion on a second side of the connector opposite to the first side and configured to be attached to a second portion of the device. Optionally, the first attachment portion and the second attachment portion are displaced from each other in a direction along the deformable material. Optionally, the deformable material is configured to stretch by at least 1 cm so as to provide a relative movement of at least 1 cm between the first attachment portion and the second attachment portion. Optionally, the second attachment portion is arranged to substantially cover a portion of the second side of the connector opposite to a portion of the first side of the connector on which the first low-friction layer is arranged.

[0017] Optionally, a second low friction layer is further included, which is located on a second side of the connector opposite to the first side and is configured to reduce friction between the connector and a second part of the device. Optionally, the second low friction layer is arranged to substantially cover a portion of the second side of the connector opposite to a portion of the first side of the connector where the first attachment portion is arranged.

[0018] According to a second aspect of the present disclosure, there is provided a device comprising: a first part; a second part; and at least one connector according to any one of the preceding claims, the at least one connector connecting the first part and the second part.

[0019] Optionally, the second part of the device comprises a low friction layer arranged to face the one or more connectors.

[0020] Optionally, the device is a protective garment and the first portion of the device comprises an interface layer configured to contact a wearer.

[0021] Optionally, the second portion comprises at least one of a hard shell and an energy absorbing layer.

[0022] Optionally, the device is a helmet. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is described in detail below with reference to the accompanying drawings, in which:

[0024] Figure 1 schematically illustrates a cross-section of a first exemplary helmet;

[0025] Figure 2 schematically illustrates a cross-section of a second exemplary helmet;

[0026] Figure 3 schematically illustrates a cross-section of a third exemplary helmet;

[0027] Figure 4 schematically illustrates a cross-section of a fourth exemplary helmet;

[0028] Figure 5 schematically illustrates a cross-section of a fifth exemplary helmet;

[0029] Figure 6 schematically illustrates a cross-section of a sixth exemplary helmet;

[0030] Figure 7 schematically illustrates a cross-section of a seventh exemplary helmet;

[0031] Figure 8 An eighth exemplary helmet is shown;

[0032] Fig. 9 A first example of body armor is shown;

[0033] Fig.10 A second example of body armor is shown;

[0034] Fig.11 showing a first view of a first exemplary connector;

[0035] Fig.12 showing a second view of the first exemplary connector;

[0036] Fig.13 showing a third view of the first exemplary connector;

[0037] Fig.14 A first exemplary helmet including a connector is shown; and

[0038] Fig.15 A second exemplary helmet including a connector is shown. DETAILED DESCRIPTION

[0039] It should be noted that the drawings are schematic and that the proportions of the thicknesses of the various layers and / or of any gaps between layers depicted in the drawings have been exaggerated for the sake of clarity and may of course be adapted as needed and required.

[0040] Although the examples described below relate to helmets, it should be understood that the present invention is generally applicable to protective equipment, including other types of headgear and other protective clothing.

[0041] A protective device may be understood as having components corresponding to components of the helmet described below. For example, the protective device may have a layered structure corresponding to the layered structure of the helmet described above.

[0042] Helmet-specific terms, such as "radial direction", are understood to have equivalents in the context of other protective equipment, such as "thickness direction". "Wearer" is generally understood to correspond to the object to be protected by the protective device, and "head" as a specific part of that object, such as different parts of the body that come into contact with the protective device.

[0043] Reference below Figures 1 to 7 Describe the general features of an exemplary helmet.

[0044] Figures 1 to 7 An exemplary helmet 1 is shown that includes an energy absorbing layer 3. The purpose of the energy absorbing layer 3 is to absorb and dissipate energy from an impact so as to reduce the energy transferred to the helmet wearer. Within the helmet 1, the energy absorbing layer may 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.

[0045] The energy absorbing layer 3 may absorb energy more effectively from the radial component of the impact than from the tangential component of the impact. The term "radial" generally refers to a direction substantially toward the center of the wearer's head, for example substantially perpendicular to the outer surface of the helmet 1. The term "tangential" may refer to a direction substantially perpendicular to the radial direction in a plane including the radial direction and the impact direction.

[0046] The energy absorbing layer may be formed of an energy absorbing material such as a foam material. Preferred such materials include expanded polystyrene (EPS), expanded polypropylene (EPP), expanded polyurethane (EPU), vinyl nitrile foam; or strain rate sensitive foam such as that sold under the trade name Poron®. TM and D3O TM The ones that are sold.

[0047] Alternatively or in addition, the energy absorbing layer may have a structure that provides energy absorbing properties. For example, the energy absorbing layer may include deformable elements, such as cells or finger-like protrusions, that deform upon impact to absorb and dissipate impact energy.

[0048] like Figure 6 As shown, the energy absorbing layer 3 of the helmet 1 is divided into an outer portion 3A and an inner portion 3B.

[0049] The energy absorbing layer 3 is not limited to one specific arrangement or material. The energy absorbing layer 3 may be provided by a plurality of layers having different arrangements, i.e. formed of different materials or having different structures. The energy absorbing layer 3 may be a relatively thick layer. For example, it may be the thickest layer of the helmet 1.

[0050] Figures 1 to 7 An exemplary helmet 1 is shown that includes an outer layer 2. The purpose of the outer layer 2 may be to provide rigidity to the helmet. This may help to spread the impact energy over a larger area of ​​the helmet 1. The outer layer 2 may also provide protection from objects that may pierce the helmet 1. Thus, the outer layer may be, for example, a relatively strong and / or rigid layer compared to the energy absorbing layer 3. The outer layer 2 may be, for example, a relatively thin layer compared to the energy absorbing layer 3.

[0051] The outer layer 2 may be formed of a relatively strong and / or rigid material. Preferred such materials include polymeric materials such as polycarbonate (PC), polyvinylchloride (PVC) or acrylonitrile butadiene styrene (ABS). Advantageously, the polymeric material may be fiber reinforced using materials such as glass fiber, Aramid, Twaron, carbon fiber and / or Kevlar.

[0052] like Figure 7 As shown, one or more outer panels 7 may be mounted to the outer layer 2 of the helmet 1. The outer panels 7 may be formed of a relatively strong and / or rigid material, such as the same type of material that may form the outer layer 2. The material selected for forming the outer panels 7 may be the same as or different from the material used to form the outer layer 2.

[0053] In some exemplary helmets, the outer layer 2 and / or the energy absorbing layer 3 may be adjustable in size to provide a customized fit. For example, the outer layer 2 may be provided in separate front and rear portions. The relative positions of the front and rear portions may be adjusted to change the size of the outer layer 2. To avoid gaps in the outer layer 2, the front and rear portions may overlap. The energy absorbing layer 3 may also be provided in separate front and rear portions. These may be arranged so that the relative positions of the front and rear portions may be adjusted to change the size of the energy absorbing layer 3. To avoid gaps in the energy absorbing layer 3, the front and rear portions may overlap.

[0054] Figures 1 to 4 An exemplary helmet 1 is shown including an interface layer 4. Although Figures 5 to 7 4. Although not shown in the drawings, these exemplary helmets may also include an interface layer 4. The purpose of the interface layer 4 may be to provide an interface between the helmet and the wearer. In some arrangements, this may improve the comfort of the wearer. The interface layer 4 may be provided to mount the helmet on the wearer's head. The interface layer 4 may be provided as a single portion or in multiple sections.

[0055] The interface layer 4 can be configured to at least partially conform to the wearer's head. For example, the interface layer 4 can be elastic and / or can include an adjustment mechanism for adjusting the size of the interface layer 4. In one arrangement, the interface layer can engage the top of the wearer's head. Alternatively or in addition, the interface layer 4 can include an adjustable strap configured to encircle the wearer's head.

[0056] The interface layer 4 may include a comfort pad 4A. Multiple sections of the comfort pad 4A may be provided. The comfort pad 4A may be provided on a base plate 4B for mounting the comfort pad to the rest of the helmet 1 .

[0057] The purpose of the comfort pad 4A is to improve the comfort of wearing the helmet and / or to provide a better fit. For example, the comfort pad can be formed of a relatively soft material compared to the energy absorbing layer 3 and / or the outer layer 2. The comfort pad 4A can be formed of a foam material. However, the foam material can have a lower density and / or be thinner than the foam material used for the energy absorbing layer 3. Therefore, the comfort pad 4A will not absorb a meaningful amount of energy during an impact, that is, the meaningful amount of energy absorption is to reduce damage to the helmet wearer. Comfort pads are recognized in the art as being different from energy absorbing layers, even though they can be made of somewhat similar materials.

[0058] The interface layer 4 and / or the comfort pad 4A which may be a part thereof may be removable. This may allow the interface layer 4 and / or the comfort pad 4A to be cleaned and / or may allow the interface layer and / or the comfort pad 4A to be provided which is configured to fit a specific wearer.

[0059] A strap, such as a chin strap, may be provided to secure the helmet 1 to the wearer's head.

[0060] Figures 1 to 4 The helmet is constructed so that the interface layer 4 can move, for example slide, in a tangential direction relative to the energy absorbing layer 3 in response to an impact. Figures 1 to 4 As shown, the helmet may further include a connector 5 located between the energy absorbing layer 3 and the interface layer 4, the connector 5 allowing relative movement between the energy absorbing layer 3 and the interface layer 4 while connecting the elements of the helmet together.

[0061] Figure 5 The helmet is constructed so that the outer layer 2 can move, for example slide, in a tangential direction relative to the energy absorbing layer 3 in response to an impact. Figure 5 As shown, the helmet 1 may further include a connector 5 located between the energy absorbing layer 3 and the outer layer 2, the connector 5 allowing relative movement between the energy absorbing layer 3 and the outer layer 2 while connecting the elements of the helmet together.

[0062] Figure 6 The helmet is constructed so that the outer portion 3A of the energy absorbing layer 3 can move, for example slide, in a tangential direction relative to the inner portion 3B of the energy absorbing layer 3 in response to an impact. Figure 6As shown, the helmet 1 may further include a connector 5 between the outer portion 3A of the energy absorbing layer 3 and the inner portion 3B of the energy absorbing layer 3, the connector 5 allowing relative movement between the outer portion 3A of the energy absorbing layer 3 and the inner portion 3B of the energy absorbing layer 3 while connecting the elements of the helmet together.

[0063] Figure 7 The helmet is constructed so that the outer panel 8 can move, for example slide, in a tangential direction relative to the outer layer 2 in response to an impact. Figure 7 As shown, the helmet may also include a connector 5 between the outer plate 8 and the outer layer 2, the connector 5 allowing relative movement between the outer plate 7 and the outer layer 2 while connecting the elements of the helmet together.

[0064] The purpose of the helmet layers that move or slide relative to each other can be to redirect the energy of an impact that would otherwise be transmitted to the wearer's head. This can improve the wearer's protection from the tangential component of the impact energy. The tangential component of the impact energy typically results in a rotational acceleration of the wearer's head. It is well known that such rotations can cause brain damage. It has been shown that a helmet with layers that move relative to each other can reduce the rotational acceleration of the wearer's head. A typical reduction may be about 25%, but in some cases reductions of up to 90% are possible.

[0065] Preferably, the relative movement between the helmet layers results in a total offset between the outermost helmet layer and the innermost helmet layer of at least 0.5 cm, more preferably at least 1 cm, still more preferably at least 1.5 cm. Preferably, the relative movement may occur in any direction, such as in a circumferential direction around the helmet, from left to right, from front to back, and any direction therebetween.

[0066] Relative movement may be considered to occur substantially in a plane insofar as relevant, even though the motion between the layers may be rotational rather than linear. Therefore, reference may be made hereinafter to movement in a plane.

[0067] Regardless of how the layers of a helmet are configured to move relative to one another, it is preferred that relative movement (such as sliding) be able to occur under the forces of a typical impact for which the helmet is designed (e.g., an impact that is expected to be non-lethal to the wearer). Such forces are significantly higher than the forces that the helmet may be subjected to during normal use. Impact forces tend to compress the layers of the helmet together, increasing the reaction forces between the components and thereby increasing friction. In the case where a helmet is configured to have layers that slide relative to one another, the interfaces between them may need to be configured to enable sliding even under the high reaction forces experienced between them under impact.

[0068] like Figures 1 to 7As shown, a sliding interface may be provided between layers of the helmet 1 that are configured to slide relative to each other. At the sliding interface, the surfaces slide against each other to enable relative sliding between the layers of the helmet 1. The sliding interface may be a low friction interface. Thus, a friction reducing device may be provided at the sliding interface. Figures 1 to 7 An exemplary sliding interface associated with each exemplary helmet 1 is shown.

[0069] The friction reducing means may be a low friction material or a lubricating material. For example, these may be provided as a continuous layer, a plurality of discrete patches or portions of material. Possible low friction materials for the friction reducing means include waxy polymers such as PC, PTFE, ABS, PVC, nylon, PFA, FEP, PE and UHMWPE, Teflon, TM (Teflon TM ), woven fabrics (such as Tamarack TM ), nonwoven fabrics (such as felt). This low friction material can have a thickness of about 0.1-5 mm, but other thicknesses can be used depending on the material selected and the desired performance. Possible lubricating materials include oils, polymers, microspheres or powders. Combinations of the above can be used.

[0070] In one example, the low friction material or lubricating material may be a polysiloxane-containing material. In particular, the material may include (i) an organic polymer, a polysiloxane and a surfactant; (i) an organic polymer and a copolymer based on polysiloxane and an organic polymer; or (iii) a non-elastomeric cross-linked polymer obtained or obtainable by subjecting a polysiloxane and an organic polymer to a cross-linking reaction. Preferred options for such materials are described in WO2017 / 148958.

[0071] In one example, the low friction material or lubricating material may include a mixture of (i) an olefin polymer, (ii) a lubricant, and optionally one or more additional agents. Preferred options for such materials are described in WO2020 / 115063.

[0072] In one example, the low friction material or lubricating material may include a material having a friction coefficient of ≤ 960 kg / m 3 An ultra high molecular weight (UHMW) polymer of high density, the UHMW polymer is preferably an olefin polymer. Preferred options for such materials are described in WO2020 / 115063.

[0073] In one example, the low friction material or lubricating material may include polyketone. Preferred options for such materials are described in WO 2020260185.

[0074] In some arrangements, it may be desirable to construct a low friction interface such that the static and / or kinetic coefficients of friction between the materials forming the sliding surfaces at the sliding interface are between 0.001 and 0.3 and / or below 0.15. The coefficient of friction may be tested by standard means, such as standard test method ASTM D1894.

[0075] The friction reducing device may be disposed on one or both layers of the helmet 1, or may be an integral part of one or both layers of the helmet 1, which are configured to slide relative to each other. In some examples, a helmet layer may have a dual function, including serving as a friction reducing device. Alternatively or in addition, the friction reducing device may be separate from the layers of the helmet 1 configured to slide relative to each other but disposed between these layers.

[0076] In lieu of a sliding interface, in some examples, a shear interface may be provided between layers of the helmet 1 that are configured to move relative to each other. At the shear interface, the shear layer shears to enable relative movement between the layers of the helmet 1. The shear layer may include a gel or liquid that may be retained within a flexible envelope. Alternatively, the shear layer may include two opposing layers connected by a deformable element that deforms to enable shearing between the two opposing layers.

[0077] A single shear layer may be provided that substantially fills the volume between the two layers of the helmet. Alternatively, one or more shear layers may be provided that fill only a portion of the volume between the two layers of the helmet, for example leaving a substantial space around the shear layer. As described above, this space may include a sliding interface. Thus, the helmet may have a combination of a shear interface and a sliding interface. Such a shear layer may act as a connector 5, which is further described below.

[0078] Figures 1 to 7 A connector 5 is schematically shown. The connector 5 is configured to connect two layers of the helmet while allowing relative movement, such as sliding or shearing, between the layers. Figures 1 to 7 Compared to the example shown, a different number of connectors 5 may be provided. The connectors 5 may be located at different Figures 1 to 7 The locations shown are, for example, the peripheral edges of the helmet 1 rather than the central portion.

[0079] Typically, the connector 5 includes: a first attachment portion and a second attachment portion, the first attachment portion and the second attachment portion being configured to be attached to the first part and the second part of the helmet, respectively; and a deformable portion between the first attachment portion and the second attachment portion, so that the first attachment portion and the second attachment portion can move relative to each other to enable movement between the first part and the second part of the helmet. The connector 5 can absorb some impact energy by deformation.

[0080] Description below Figures 1 to 7 The specific arrangement of each exemplary helmet shown in .

[0081] Figure 1 A helmet is shown comprising an outer layer 2, an energy absorbing layer 3 and an interface layer 4. The interface layer 4 is provided as a single layer and comprises a comfort pad.

[0082] Figure 1 The helmet is constructed so that the interface layer 4 can slide relative to the energy absorbing layer 3 in response to an impact. A sliding interface is provided between the interface layer 4 and the energy absorbing layer 3.

[0083] The sliding layer 7 is arranged on the surface of the energy absorbing layer 3 facing the sliding interface. The sliding layer 7 can be molded onto the energy absorbing layer 3 or otherwise attached thereto. For example, relative to the energy absorbing layer 3, the sliding layer 7 can be formed of a relatively hard material. The sliding layer 7 is configured to provide a friction reducing device to reduce the friction at the sliding interface. This can be achieved by forming the sliding layer 7 from a low friction material (e.g., PC, PTFE, ABS, PVC, nylon, PFA, FEP, PE and UHMWPE). Alternatively or in addition, this can be achieved by applying a low friction coating to the sliding layer 7 and / or applying a lubricant to the sliding layer 7.

[0084] Alternatively or in addition, friction reducing means may be provided by forming the energy absorbing layer 3 from a low friction material, by applying a low friction coating to the energy absorbing layer 3 and / or by applying a lubricant to the energy receiving layer 3 in order to reduce friction at the sliding interface.

[0085] Figure 1 The helmet 1 shown also includes a connector 5 attached to the interface layer 4. The connector is also connected to a sliding layer 7 to allow relative sliding between the energy absorbing layer 3 and the interface layer 4. Alternatively or in addition, one or more connectors 5 can be connected to another part of the rest of the helmet 1, such as the energy absorbing layer 3 or the shell 2. The connector 5 can also be connected to two or more parts of the rest of the helmet 1.

[0086] It will be appreciated that this arrangement of energy absorbing layer 3 and interface layer 4 may be added to any of the helmets described herein.

[0087] Figure 2 A helmet is shown comprising an outer layer 2, an energy absorbing layer 3 and an interface layer 4. The interface layer 4 is arranged in a plurality of independent sections, each of which comprises a comfort pad.

[0088] Figure 2 The helmet is constructed so that a section of the interface layer 4 can slide relative to the energy absorbing layer 3 in response to an impact. A sliding interface is provided between the section of the interface layer 4 and the energy absorbing layer 3.

[0089] The sliding layer 7 is arranged on the surface of the energy absorbing layer 3 facing the sliding interface. The sliding layer 7 can be molded onto the energy absorbing layer 3 or otherwise attached thereto. For example, relative to the energy absorbing layer 3, the sliding layer 7 can be formed of a relatively hard material. The sliding layer 7 is configured to provide a friction reducing device to reduce the friction at the sliding interface. This can be achieved by forming the sliding layer 7 from a low friction material (e.g., PC, PTFE, ABS, PVC, nylon, PFA, FEP, PE and UHMWPE). Alternatively or in addition, this can be achieved by applying a low friction coating to the sliding layer 7 and / or applying a lubricant to the sliding layer 7.

[0090] Alternatively or in addition, friction reducing means may be provided by forming the energy absorbing layer 3 from a low friction material, by applying a low friction coating to the energy absorbing layer 3 and / or by applying a lubricant to the energy receiving layer 3 in order to reduce friction at the sliding interface.

[0091] Figure 2 The helmet 1 shown also includes a connector 5 attached to each individual segment of the interface layer 4. The connectors 5 are also attached to the sliding layer 7 to allow relative sliding between the energy absorbing layer 3 and the segments of the interface layer 4. Alternatively or in addition, one or more connectors 5 may be connected to another part of the rest of the helmet 1, such as the energy absorbing layer 3 or the shell 2. The connectors 5 may also be connected to two or more parts of the rest of the helmet 1.

[0092] It will be appreciated that this arrangement of energy absorbing layer 3 and interface layer 4 may be added to any of the helmets described herein.

[0093] Figure 3 A helmet is shown comprising an outer layer 2, an energy absorbing layer 3 and an interface layer 4. The interface layer 4 is provided as a single layer and comprises a comfort pad 4A attached to a base plate 4B. The base plate 4B may be bonded to the outside of the comfort pad 4A. This bonding may be by any means, such as by an adhesive or by high frequency welding or sewing.

[0094] Figure 3 The helmet is constructed so that the interface layer 4 can slide relative to the energy absorbing layer 3 in response to an impact. A sliding interface is provided between the interface layer 4 and the energy absorbing layer 3.

[0095] The substrate 4B of the interface layer 4 faces the sliding interface. For example, relative to the energy absorbing layer 3 and / or the comfort pad 4A, the substrate 4B can be formed of a relatively hard material. The substrate 4B is configured to provide a friction reducing device so as to reduce the friction at the sliding interface. This can be achieved by forming the substrate 4B from a low friction material (e.g., PC, PTFE, ABS, PVC, nylon, PFA, FEP, PE, and UHMWPE). Alternatively or in addition, this can be achieved by applying a low friction coating to the substrate 4B and / or applying a lubricant to the substrate 4B. In an alternative example, the substrate 4B can be formed of a fabric material, optionally coated with a low friction material.

[0096] Alternatively or in addition, friction reducing means may be provided by forming the energy absorbing layer 3 from a low friction material, by applying a low friction coating to the energy absorbing layer 3 and / or by applying a lubricant to the energy receiving layer 3 in order to reduce friction at the sliding interface.

[0097] Figure 3 The helmet 1 shown also includes a connector 5 attached to the interface layer 4. The connector is also connected to the energy absorbing layer to allow relative sliding between the energy absorbing layer 3 and the interface layer 4. Alternatively or in addition, one or more connectors 5 can be connected to another part of the rest of the helmet 1, such as the shell 2. The connector 5 can also be connected to two or more parts of the rest of the helmet 1.

[0098] It will be appreciated that this arrangement of energy absorbing layer 3 and interface layer 4 may be added to any of the helmets described herein.

[0099] Figure 4 A helmet is shown comprising an outer layer 2, an energy absorbing layer 3 and an interface layer 4. The interface layer 4 is arranged in a plurality of independent sections, each of which comprises a comfort pad 4A attached to a base plate 4B. The base plate 4B may be bonded to the outside of the comfort pad 4A. This bonding may be by any means, such as by an adhesive or by high frequency welding or sewing.

[0100] Figure 4 The helmet is constructed so that the interface layer 4 can slide relative to the energy absorbing layer 3 in response to an impact. A sliding interface is provided between the interface layer 4 and the energy absorbing layer 3.

[0101] The substrate 4B of each section of the interface layer 4 faces the sliding interface. For example, relative to the energy absorbing layer 3 and / or the comfort pad 4A, the substrate 4B can be formed of a relatively hard material. The substrate 4B is configured to provide a friction reducing device so as to reduce the friction at the sliding interface. This can be achieved by forming the substrate 4B from a low friction material (e.g., PC, PTFE, ABS, PVC, nylon, PFA, FEP, PE, and UHMWPE). Alternatively or in addition, this can be achieved by applying a low friction coating to the substrate 4B and / or applying a lubricant to the substrate 4B. In an alternative example, the substrate 4B can be formed of a fabric material, optionally coated with a low friction material.

[0102] Alternatively or in addition, friction reducing means may be provided by forming the energy absorbing layer 3 from a low friction material, by applying a low friction coating to the energy absorbing layer 3 and / or by applying a lubricant to the energy receiving layer 3 in order to reduce friction at the sliding interface.

[0103] Figure 4 The helmet 1 shown also includes connectors 5 attached to sections of the interface layer 4. The connectors 5 are also connected to the energy absorbing layer 3 to allow relative sliding between the energy absorbing layer 3 and the interface layer 4. Alternatively or in addition, one or more connectors 5 can be connected to another part of the rest of the helmet 1, such as the shell 2. The connectors 5 can also be connected to two or more parts of the rest of the helmet 1.

[0104] It will be appreciated that this arrangement of energy absorbing layer 3 and interface layer 4 may be added to any of the helmets described herein.

[0105] Figure 5 There is shown a helmet comprising an outer layer 2 and an energy absorbing layer 3. Although not shown, an interface layer may additionally be provided.

[0106] Figure 5 The helmet is constructed so that the outer layer 2 can slide relative to the energy absorbing layer 3 in response to an impact. A sliding interface can be provided between the outer layer 2 and the energy absorbing layer 3.

[0107] Although not shown, an additional layer may be provided on the surface of the energy absorbing layer 3 facing the sliding interface. The additional layer may be molded onto the energy absorbing layer 3 or otherwise attached thereto. The additional layer may be formed of, for example, a relatively hard material relative to the energy absorbing layer 3. The additional layer may be configured to provide a friction reducing device to reduce friction at the sliding interface. This may be achieved by forming the additional layer from a low friction material (e.g., PC, PTFE, ABS, PVC, nylon, PFA, FEP, PE, and UHMWPE). Alternatively or in addition, this may be achieved by applying a low friction coating to the additional layer and / or applying a lubricant to the additional layer.

[0108] Alternatively or in addition, a friction reducing device may be provided by forming the outer layer 2 from a low friction material, providing an additional low friction layer on the surface of the outer layer 2 facing the sliding interface, by applying a low friction coating to the outer layer 2 and / or applying a lubricant to the outer layer 2 so as to reduce the friction at the sliding interface.

[0109] Figure 5 The helmet 1 shown also includes connectors 5 attached to the outer layer 2. The connectors 5 are also attached to the energy absorbing layer 3 (or additional layers) to allow relative sliding between segments of the energy absorbing layer 3 and the interface layer 4. Alternatively or in addition, one or more of the connectors 5 can be connected to another portion of the rest of the helmet 1, such as an interface layer. The connectors 5 can also be connected to two or more portions of the rest of the helmet 1.

[0110] It will be appreciated that this arrangement of outer shell 2 and energy absorbing layer 3 may be added to any of the helmets described herein.

[0111] Figure 6 A helmet is shown comprising an outer layer 2 and an energy absorbing layer 3. As shown, Figure 6 The energy absorbing layer 3 of the helmet shown is divided into an outer portion 3A and an inner portion 3B. Although not shown, an interface layer may be provided in addition.

[0112] Figure 6 The helmet is configured so that the outer portion 3A of the energy absorbing layer 3 can slide relative to the inner portion 3B of the energy absorbing layer 3 in response to an impact. A sliding interface may be provided between the outer portion 3A of the energy absorbing layer 3 and the inner portion 3B of the energy absorbing layer 3 .

[0113] Although not shown, an additional layer may be provided on the surface of one or both of the inner portion 3A and the outer portion 3B of the energy absorbing layer 3 facing the sliding interface. The additional layer may be molded to the inner portion 3A or the outer portion 3B of the energy absorbing layer 3 or otherwise attached thereto. The additional layer may be formed of a relatively hard material, for example, relative to the energy absorbing layer 3. The additional layer may be configured to provide a friction reducing device to reduce friction at the sliding interface. This may be achieved by forming the additional layer from a low friction material (e.g., PC, PTFE, ABS, PVC, nylon, PFA, FEP, PE, and UHMWPE). Alternatively or in addition, this may be achieved by applying a low friction coating to the additional layer and / or applying a lubricant to the additional layer.

[0114] Alternatively or in addition, a friction reducing device may be provided by forming one or both of the inner portion 3A and the outer portion 3B of the energy absorbing layer 3 from a low friction material, providing an additional low friction layer on the surface of the inner portion 3A and the outer portion 3B of the energy absorbing layer 3 facing the sliding interface, by applying a low friction coating to the inner portion 3A and the outer portion 3B of the energy absorbing layer 3 and / or applying a lubricant to the inner portion 3A and the outer portion 3B of the energy absorbing layer 3 so as to reduce the friction at the sliding interface.

[0115] Figure 6 The helmet 1 shown also includes connectors 5 attached to the outer layer 2. The connectors 5 are also attached to the energy absorbing layer 3 (or additional layers) to allow relative sliding between segments of the energy absorbing layer 3 and the interface layer 4. Alternatively or in addition, one or more of the connectors 5 can be connected to another portion of the rest of the helmet 1, such as an interface layer. The connectors 5 can also be connected to two or more portions of the rest of the helmet 1.

[0116] It will be appreciated that this arrangement of inner portion 3A and outer portion 3B of energy absorbing layer 3 may be added to any of the helmets described herein.

[0117] Figure 7 A helmet is shown comprising an outer layer 2 and an energy absorbing layer 3. Figure 7 As shown, one or more outer panels 7 are mounted to the outer layer 2 of the helmet 1. The outer panels 7 may be formed from a relatively strong and / or rigid material, such as the same type of material that may form the outer layer 2. Although not shown, an interface layer may additionally be provided.

[0118] Figure 7 The helmet is constructed so that the outer plate 8 can slide relative to the outer layer 2 in response to an impact. A sliding interface can be provided between the outer plate 8 and the outer layer 2.

[0119] Friction reducing means may be provided by forming the outer layer 2 and / or the outer plate 8 from a low friction material, providing an additional low friction layer on the surface of the outer layer 2 and / or the outer plate 8 facing the sliding interface, by applying a low friction coating to the outer layer 2 and / or the outer plate 8, and / or applying a lubricant to the outer layer 2 and / or the outer plate 8 so as to reduce the friction at the sliding interface.

[0120] Figure 7 The helmet 1 shown also includes a connector 5 attached to the outer plate 7, which is also attached to the outer layer 2 to allow relative sliding between the plate 7 and the outer layer 2. Alternatively or in addition, one or more connectors 5 may be connected to another part of the rest of the helmet 1, such as the energy absorbing layer 3. The connector 5 may also be connected to two or more parts of the rest of the helmet 1.

[0121] In this arrangement, in the event that the helmet 1 is subjected to an impact, it can be expected that the impact will occur on one or a limited number of the outer panels 17. Therefore, by constructing the helmet so that one or more outer panels 7 can move relative to the outer layer 2 and any outer panels 7 that have not been impacted, the surface receiving the impact (i.e., one or a limited number of outer panels 7) can move relative to the rest of the helmet 1. In the event of an impact, this can reduce the rotational acceleration of the wearer's head.

[0122] It will be appreciated that such an arrangement of an outer plate 7, ie an arrangement having a sliding interface between at least two layers of the helmet 1, may be added to any of the helmets described herein.

[0123] Some helmets, such as Figures 1 to 6 Those shown are configured to cover the top of the head, and the above-described helmet structures are appropriately positioned in the helmet to cover the top of the head. For example, the helmet can be configured to substantially cover the forehead, top of the head, back of the head, and / or temples of the wearer. The helmet can substantially cover the wearer's cranium.

[0124] Some helmets can be constructed to cover other parts of the head, either instead of or in addition to the top. For example, a helmet (such as Figure 8 The helmet shown in the figure can cover the cheeks and / or chin of the wearer. Such a helmet can be constructed to basically cover the jaw of the wearer. Figure 8 Helmets of the type shown are generally referred to as full-face helmets. Figure 8 As shown, cheek pads 30 may be provided on either side (ie, left and right) of the helmet 1. The cheek pads 30 may be provided within the shell 2 of the helmet 1 to protect the sides of the wearer's face from impact.

[0125] The cheek pads 30 may have the same layered structure as the exemplary helmet described above. For example, the cheek pads 30 may include one or more energy absorbing layers as described above, and / or interface layers as described above, and / or layers that move relative to each other as described above, and optionally the layers may be connected by connectors as described above. Alternatively or in addition, the cheek pads 30 themselves may be configured to move relative to the shell 2, and optionally connected to the shell by connectors as described above.

[0126] Although the above examples relate to helmets, as noted above, the present disclosure may also relate to alternative protective clothing, such as body armor, e.g. Fig. 9 and Fig.10 The body armor 100 may provide protection for other parts of the body, such as the calves, knees, thighs, forearms, elbows, upper arms, shoulders, chest, and back. Individual pieces of body armor may be provided to protect individual body parts, such as Fig. 9), or alternatively, may be combined in a garment comprising multiple armor regions 101 to protect multiple body parts (e.g. Fig.10 ). This body armor 100 can be worn for the same activities as the helmets described above, including for combat, sports, and motorcycling.

[0127] The body armor 100 can have the same layered structure as the exemplary helmet described above. For example, the body armor 100 can include an outer shell 2 as described above, one or more energy absorbing layers 3 as described above, and / or an interface layer as described above, and / or layers that move relative to each other as described above, and / or the layers can be connected by connectors 5 as described above.

[0128] The following describes connectors that can be used in helmets. It should be understood that these connectors can be used in a variety of environments and are not limited to use in helmets. For example, they can be used in other devices that provide impact protection, such as body armor or pads for sports equipment.

[0129] It should be understood that the connector can be used to connect any two parts of the device together. In the context of a helmet, it should be particularly understood that the connector can be used to connect any two parts of the helmet (such as those discussed above that are configured to move relative to each other).

[0130] Where a connector is described as having a first portion connected to a first portion of a device and a second portion connected to a second portion of the device, it will be appreciated that this may be reversed with appropriate modification. It will also be appreciated that where a device has a first portion and a second portion connected by multiple connectors, the multiple connectors need not have identical configurations to one another.

[0131] Fig.11 A first side of an exemplary connector 20 is shown. As shown, the connector 20 includes a first attachment portion 21 , a first low friction layer 22 and a deformable layer 23.

[0132] like Fig.11 As shown, the first attachment portion 21 is arranged on a first side of the connector 20. The first attachment portion 21 is configured to be attached to the first part of the device so that the first side of the connector 20 faces the first part of the device. The direction facing the first side of the connector 20 is referred to as the first direction. In some embodiments, the first direction can be a direction substantially perpendicular to the connector 20 and / or the first part and / or the second part of the device. In an example where the device is a helmet, this can be a radial direction of the helmet when the connector 20 is in use.

[0133] like Fig.11As shown, a first low friction layer 22 is disposed on a first side of the connector 20. The first low friction layer 22 is configured to reduce friction between the connector 20 and a first portion of the device.

[0134] like Fig.11 As shown, the deformable layer 23 is disposed at least between the first attachment portion 21 and the first low-friction layer 22. As shown, the deformable layer 23 extends in a direction substantially perpendicular to the first direction defined above. The deformable layer 23 is formed of a deformable material and is configured to allow the first attachment portion 21 and the first low-friction layer 22 to move relative to each other at least in a direction substantially perpendicular to the first direction. The movement is caused by Fig.11 In some embodiments, the direction of extension and deformation of the deformable layer can be substantially parallel to the connector 20, and / or the first portion of the device, and / or the second portion of the device. In an example where the device is a helmet, this can be the circumferential direction of the helmet when the connector 20 is in use.

[0135] Fig.12 Shows Fig.11 The second side of the exemplary connector 20 shown in FIG. As shown, the connector 20 may also include a second attachment portion 24 and a second low friction layer 25. As shown, the deformable layer 23 is also disposed at least between the second attachment portion 24 and the second low friction layer 25. Fig.12 As shown by the arrows in , the deformable layer is also configured to allow the second attachment portion 24 and the second low-friction layer 25 to move relative to each other.

[0136] like Fig.12 As shown, the second attachment portion 24 can be disposed on the second side of the connector 20. The second attachment portion 24 is configured to be attached to the second portion of the device such that the second side of the connector 20 faces the second portion of the device.

[0137] like Fig.12 As shown, a second low friction layer 25 may be disposed on a second side of the connector 20. The second low friction layer 25 is configured to reduce friction between the connector 20 and a second portion of the device.

[0138] Fig.13 Shows Fig.11 and Fig.12 . As shown, the first attachment portion 21 can be disposed on a first side of the deformable layer 23. As shown, the first low-friction layer 22 can be disposed on the first side of the deformable layer 23. As shown, the second attachment portion 24 can be disposed on a second side of the deformable layer 23 opposite the first side. As shown, the second low-friction layer 25 can be disposed on the second side of the deformable layer 23.

[0139] like Fig.11 As shown, the first low friction layer 22 can surround the first attachment portion 21. For example, as shown, the first low friction layer 22 can be annular in shape. For example, as shown, the shape of the first attachment portion 21 can be circular in shape. However, in other examples, alternative shapes can be used. In other examples, the first low friction layer 22 can partially surround the first attachment portion 21. Fig.11 As shown, the first low-friction layer 22 may be disposed at an edge of the connector 20 and the first attachment portion 21 may be disposed at a center of the connector 20 .

[0140] like Fig.13 As shown, the second attachment portion 24 can be arranged to substantially cover a portion of the second side of the connector opposite to a portion of the first side of the connector 20 where the first low-friction layer 22 is arranged. Fig.11 and Fig.12 As shown in , the second attachment portion 24 may have substantially the same shape as the first low-friction layer 22 .

[0141] As shown, the second low friction layer 25 may be arranged to substantially cover a portion of the second side of the connector opposite to a portion of the first side of the connector 20 where the first attachment portion 21 is arranged. Fig.11 and Fig.12 As shown in , the second low friction layer 25 may be substantially the same shape as the first attachment portion 21 .

[0142] like Fig.12 As shown, the second attachment portion 24 can surround the second low friction layer 25. For example, as shown, the second low friction layer 25 can be circular in shape. For example, as shown, the second attachment portion 21 can be annular in shape. However, in other examples, alternative shapes can be used. In other examples, the second attachment portion 24 can partially surround the second low friction layer 25. As shown Fig.12 As shown, the second low-friction layer 25 may be disposed at the center of the connector 20 , and the second attachment portion 24 may be disposed at an edge of the connector 20 .

[0143] like Figures 11 to 13 As shown, the first attachment portion 21 and the second attachment portion 24 can be displaced from each other in a direction along the deformable material 23. This can allow movement of a first portion of the device connected to the first attachment portion 21 and a second portion of the device connected to the second attachment portion 24. The displacement between the first attachment portion 21 and the second attachment portion 24 can be at least 1 cm to allow at least 1 cm of relative movement. The deformable material 23 can have a diameter (or other size if not circular), for example, between about 15 mm and 50 mm.

[0144] like Fig.13As shown, the deformable layer 23 may be formed from a sheet of a deformable material. For example, this may be a sheet of stretchable fabric. One or more of the first attachment portion 21, the first low-friction layer 22, the second attachment portion 24, and the second low-friction layer 25 may be attached to the deformable layer 23 by high frequency welding, adhesives, or other means.

[0145] The deformable material 23 may be configured to stretch at least 1 cm in normal use to provide at least 1 cm of relative movement between the first attachment portion 21 and the second attachment portion 24. The deformable material 23 may stretch in two orthogonal directions.

[0146] like Fig.13 As shown, the first low friction layer 22 can be formed by a sheet of low friction material. For example, the first low friction layer can be formed by a thin layer of plastic, such as polycarbonate (PC) or thermoplastic polyurethane (TPU) as in the present example. For example, the first low friction layer 22 can be no more than 0.5 mm thick, or preferably no more than 0.1 mm thick. The low friction layer 22 can be flexible, for example, so that it can bend. Alternatively, the first low friction layer 22 can be formed by a brushed nylon layer. Alternatively, the first low friction layer 22 can be formed by any low friction material described above with respect to providing low friction between the layers of the device.

[0147] like Fig.13 As shown, the second low friction layer 25 can be formed from a sheet of low friction material. For example, as in this example, the second low friction layer 25 can be formed from a layer of brushed nylon. Alternatively, the second low friction layer 25 can be formed from a thin layer of plastic as described above. Alternatively, the first low friction layer 22 can be formed from any low friction material described above with respect to providing low friction between layers of the device.

[0148] like Fig.13 As shown, the first attachment portion 21 can be formed from a sheet of material. For example, the first attachment portion 21 can be formed from a hook and loop material, such as Velcro. TM , as in this example. The first attachment portion 21 can be formed by a hook portion, a loop portion, or a combination of both of the hook and loop material. Fig.11 As shown, the first attachment portion 21 may be disc-shaped, for example formed from a disc of hook and loop material. Alternatively, the first attachment portion 21 may be formed from a layer of adhesive material, such as double-sided tape.

[0149] like Fig.13As shown, the second attachment portion 24 can be formed by a sheet of material. For example, the second attachment portion 24 can be formed by a layer of adhesive material (such as, as in this example, double-sided tape). Alternatively, the first attachment portion 21 can be formed by a layer of hook and loop material as described above.

[0150] Fig.14 An exemplary connector for use in a device (in this example, a helmet) is shown. As shown, the helmet includes an energy absorbing layer 3, a low friction layer 4, and an inner liner 15, which is connected to the rest of the helmet by a connector 20. In this example, the low friction layer 4 of the helmet is a strip, Fig.14 . As shown, the connector 20 can be disposed on the low friction layer 4. As shown, the first attachment portion 21 (a hook and loop attachment portion in this example) attaches the connector 20 to the liner 15. As shown, the second attachment portion 24 (an adhesive layer in this example) attaches the connector 20 to the energy absorbing layer 3 and the low friction layer 4 of the helmet. As shown, the connector 20 is bent over the low friction layer 4 of the helmet. As shown, the connector 20 can be attached to the low friction layer 4 (attached to the energy absorbing layer 3) and also attached to a portion of the energy absorbing layer 3 adjacent to the low friction layer 4, for example on two opposite sides of the low friction layer 4. As shown, the first low friction layer 22 and the second low friction layer 25 are in contact with the opposing surface interfaces of the liner 15 and the energy absorbing layer, respectively.

[0151] In an alternative example, the connector 2 may be bent over a portion of the energy absorbing layer 3 that protrudes from the rest of the energy absorbing layer. Fig.14 The low friction layer 4 shown may be disposed on the protruding portion of the energy absorbing layer 3 or may not be disposed thereon.

[0152] Fig.15 A second exemplary connector 20 for use in a second exemplary device (in this example, a helmet) is shown. As shown, the helmet includes an energy absorbing layer 3 and a liner 15. As shown, a first attachment portion 21 (a hook and loop attachment portion in this example) attaches the connector 20 to the liner 15. As shown, a second attachment portion 24 (also a hook and loop attachment portion in this example) attaches the connector 20 to the energy absorbing layer 3. As shown, the energy absorbing layer 3 may include a recess to which the second attachment portion 24 is attached. In this example, the recess is circular. As shown, a corresponding hook and loop attachment portion 24A is disposed in the recess and, for example, is fixed to the energy absorbing layer 3 by an adhesive. As shown, a first low friction layer 22 and a second low friction layer 25 are in contact with the opposing surface interfaces of the liner 15 and the energy absorbing layer, respectively.

[0153] In an alternative example, the first attachment portion and / or the second attachment portion may be a double-sided tape instead of a hook and loop attachment portion.

[0154] Helmets as described above can be used for various activities. These activities include combat purposes and industrial purposes, such as protective helmets for soldiers and hard hats or helmets used by architects, miners or operators of industrial machinery. Helmets are also common in sports activities. For example, protective helmets can be used for ice hockey, cycling, motorcycle sports, racing, skiing, snowboarding, skating, skateboarding, equestrian activities, American football, baseball, rugby, soccer, cricket, lacrosse, rock climbing, golf, air guns, roller skating and paintball.

[0155] Examples of injuries that can be prevented or mitigated by the above-mentioned helmets include mild traumatic brain injury (MTBI) (e.g., concussion) and severe traumatic brain injury (STBI) (e.g., subdural haematomas (SDH), hemorrhage due to ruptured blood vessels, and diffuse axonal injury (DAI), which can be summarized as excessive stretching of nerve fibers due to high shear deformation of brain tissue.

[0156] Depending on the characteristics of the rotational component of the impact (e.g., duration, magnitude, and rate of increase), a concussion, SDH, DAI, or a combination of these injuries may be sustained. In general, SDH occurs with short duration and large magnitude accelerations, while DAI occurs with longer and more extensive acceleration loads.

[0157] Variations of the above examples are possible in light of the above teachings. It should be appreciated that the present invention may be otherwise implemented as well as specifically described herein without departing from the spirit and scope of the present invention.

Claims

1. A connector for connecting a first part and a second part of a device, the connector comprising: a first attachment portion disposed on a first side of the connector and configured to be attached to a first portion of the device such that the first side of the connector faces in a first direction toward the first portion of the device; a first low friction layer disposed on a first side of the connector and configured to reduce friction between the connector and a first portion of the device; A deformable layer is formed of a deformable material, is disposed at least between the first attachment portion and the first low-friction layer and extends in a direction substantially perpendicular to the first direction, and is configured to allow the first attachment portion and the first low-friction layer to move relative to each other in a direction substantially perpendicular to the first direction.

2. The connector according to claim 1, wherein: The deformable layer is formed from a sheet of the deformable material.

3. The connector according to claim 2, wherein: The deformable material is a sheet of stretchable fabric.

4. The connector according to claim 2 or 3, wherein: The first attachment portion is disposed on a first side of the sheet of deformable material.

5. The connector according to any one of claims 2 to 4, wherein: The first low friction layer is disposed on a first side of the sheet of deformable material.

6. A connector according to any preceding claim, wherein: The low friction layer is formed from a sheet of low friction material.

7. A connector according to any preceding claim, wherein: The first low friction layer is flexible.

8. A connector according to any preceding claim, wherein: The first low-friction layer is formed by a thin layer of plastic.

9. The connector according to claim 8, wherein: The plastic is polycarbonate.

10. A connector according to any preceding claim, wherein: The thickness of the first low-friction layer is no more than 0.5 mm.

11. A connector according to any preceding claim, wherein: The low friction layer surrounds the first attachment portion.

12. The connector according to claim 11, wherein: The low friction layer is annular.

13. A connector according to any preceding claim, wherein: The first attachment portion includes a hook and loop material.

14. The connector according to claim 13, wherein: The first attachment portion includes a disk of hook and loop material.

15. A connector according to any preceding claim, further comprising a second attachment portion on a second side of the connector opposite the first side and configured to attach to a second part of the device.

16. The connector according to claim 15, wherein: The first attachment portion and the second attachment portion are displaced from each other in a direction along the deformable material.

17. The connector according to claim 16, wherein: The deformable material is configured to stretch at least 1 cm to provide at least 1 cm of relative movement between the first attachment portion and the second attachment portion.

18. The connector according to claims 15 to 17, wherein: The second attachment portion is arranged to substantially cover a portion of the second side of the connector opposite to a portion of the first side of the connector where the first low-friction layer is arranged.

19. A connector according to any preceding claim, further comprising a second low friction layer located on a second side of the connector opposite the first side and configured to reduce friction between the connector and a second part of the device.

20. The connector according to claim 19, wherein The second low friction layer is arranged to substantially cover a portion of the second side of the connector opposite to a portion of the first side of the connector where the first attachment portion is arranged.

21. An apparatus comprising: Part I; Part II; as well as At least one connector according to any one of the preceding claims, connecting the first part and the second part.

22. The device according to claim 22, wherein: The second portion of the device comprises a low friction layer arranged to face the one or more connectors.

23. The device according to claim 22 or 23, wherein: The device is a protective garment, and a first portion of the device includes an interface layer configured to contact a wearer.

24. The device according to any one of claims 22 to 24, wherein: The second portion includes at least one of a hard shell and an energy absorbing layer.

25. The device according to any one of claims 22 to 25, wherein: The device is a helmet.

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