Helmet retention system

Abstract

A helmet retention system includes a chin strap support that includes a first support strap and a second support strap coupled to and movable relative to the first support strap. The second support strap is movable between a first use position and a second use position. A middle section of the second support strap is spaced from a middle section of the first support strap to expose a portion of a user's chin between the first support strap and the second support strap in the first use position. The middle section of the second support strap is stacked on top of the middle section of the first support strap in the second use position.

Description

TITLE

[0001] Helmet Retention SystemCROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of U.S. Provisional Patent Application No. 63 / 607,520 filed December 7, 2023 entitled “Helmet Retention System”, which is incorporated by reference herein in its entirety.TECHNICAL FIELD

[0003] The present disclosure generally relates to helmet retention systems and, in some embodiments, to the straps, buckles, and anchors for helmet retention systems.SUMMARY

[0004] In one embodiment there is a helmet retention system including a chin strap support comprising a first support strap and a second support strap coupled to and movable relative to the first support strap, the second support strap movable between a first use position and a second use position, a middle section of the second support strap being spaced from a middle section of the first support strap to expose a portion of a user’s chin between the first support strap and the second support strap in the first use position, and the middle section of the second support strap being stacked on top of the middle section of the first support strap in the second use position.

[0005] In some embodiments, the helmet retention system further includes a side strap coupled to and extending from an end of the chin strap support, the side strap including an anchor slidably coupled thereto. In some embodiments, the side strap comprises a first side strap coupled to and extending from a first end of the chin strap support and a second side strap coupled to and extending from a second end of the chin strap support. In some embodiments, the chin strap support is slidably coupled to the side strap.

[0006] In some embodiments, the side strap includes a first side strap extension extending from the chin strap support in a first direction, and a second side strap extension extending from the chin strap support in a second direction that is non-parallel to the first direction. In some embodiments, the first support strap and the second support strap each comprise ends and the middle section for each of the first support strap and the second support strap extends between each of the respective ends, and the middle section of each of the first support strap and the second support strap are freelymovable relative to each other. In some embodiments, the ends of the first support strap and the ends of the second support strap overlap each other in the first use position and in the second use position.

[0007] In some embodiments, the entire second support strap stacks on top of the first support strap in the second use position. In some embodiments, the second support strap slides between the first use position and the second use position. In some embodiments, the first support strap slides between the first use position and the second use position. In some embodiments, the second support strap flips between the first use position and the second use position.

[0008] In another embodiment there is a helmet retention system including a side strap coupled to and extending from a chin strap support, an end of the side strap including a first fold forming a pocket, and a length adjustor slidably coupled to the side strap, the length adjustor having a frame having upper, central and lower cross-members, the central cross-member having a lower-side edge, the lower-side edge received in the pocket of the end of the side strap to prevent the end of the side strap from passing thereby, the side strap extends through the frame and engages the upper crossmember, the lower cross-member, and the side strap includes a bound end engaged with the central cross-member.

[0009] In some embodiments, the upper cross-member comprises an acutely angled inner edge and a flared, finger-engageable outer portion extending outwardly from a plane of the frame, and the lower cross-member comprises a smooth rounded surface in contact with the side strap. In some embodiments, the inner edge of the upper cross-member and the surface of the lower cross-member engage the side strap that extends through the frame. In some embodiments, rotation of the length adjustor about an axis extending through the central cross-member, by moving the finger- engageable upper cross-member in a direction to release engagement of the acutely angled edge from the strap, frees the length adjustor with respect to the side strap to adjust the length thereof. In some embodiments, the length adjustor includes a plurality of projections extending from the acutely angled inner edge configured to engage the side strap to reduce movement of the length adjustor along the side strap during use.

[0010] In another embodiment there is a ballistic helmet including a helmet shell having a first side and a second side, a first side strap extending from the first side, a second side strap extending from the second side, and a chin strap support coupled to the first side strap and the second side strap, the chin strap support comprising a first support strap and a second support strap coupled to and movable relative to the first support strap, the second support strap movable between an overchin position and an under-chin position, a middle section of the second support strap being spaced from a middle section of the first support strap to expose the chin between the first support strap andthe second support strap in a first use position, and the middle section of the second support strap being stacked on top of the middle section of the first support strap in a second use position.

[0011] In some embodiments, the ballistic helmet further includes a buckle having a first buckle half and a second buckle half removably couplable to the first buckle half, the first buckle half having a first buckle aperture and a second buckle aperture spaced apart from the first buckle aperture, the side strap extends into the first buckle aperture and out of the second buckle aperture such that the first buckle half can be selectively repositioned along a length of the first side strap before use, and the first buckle half includes a plurality of pointed projections aligned in a row perpendicular to the length of the side strap and configured to engage the first side strap to prevent movement of the first buckle half along the length of the first side strap during use.

[0012] In some embodiments, the ballistic helmet further includes a length adjustor slidably coupled to the side strap, the length adjustor having a frame having upper, central and lower crossmembers, the central cross-member having an elongate extension along a length thereof, the elongate extension configured to engage an end of the first side strap and prevent the end of the first side strap from passing thereby, a length of the first side strap extending through the frame engages the upper cross-member, the lower cross-member and the end of the side strap. In some embodiments, the ballistic helmet further includes an anchor coupled to the helmet shell, the anchor slidably coupled to the first side strap and spaced apart from the chin strap support and having an anchor aperture configured to receive a bolt component, and at least one rib extending radially inward from the anchor aperture. In some embodiments, an effective diameter of the anchor aperture decreases along its length such that a bolt component is coupled to the anchor aperture by friction between the bolt component and the at least one rib.BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following detailed description of embodiments of the helmet retention system, will be better understood when read in conjunction with the appended drawings of the exemplary embodiments. It should be understood, however, that the invention is not limited to the precise arrangements and instrumentalities shown.

[0014] In the drawings:

[0015] Fig. 1 is a front perspective view of a helmet retention system coupled to a helmet in accordance with a first exemplary embodiment of the present invention;

[0016] Fig. 2A is a front perspective view of the helmet retention system of Fig. 1 in a first use position;

[0017] Fig. 2B is a magnified partial view of the ends of the chin strap supports shown in Fig. 2A;

[0018] Fig. 3 is a front perspective view of the helmet retention system of Fig. 1 in a second use position;

[0019] Fig. 4 is a rear view of a chin strap support of the helmet retention system of Fig. 1 in a first use position;

[0020] Fig. 5 is a rear view of a chin strap support of the helmet retention system of Fig. 1 in a second use position;

[0021] Fig. 6 is a front perspective of a buckle of the helmet retention system of Fig. 1;

[0022] Fig. 7 is a front view of a first buckle half and a second buckle half of the helmet retention system of Fig. 1;

[0023] Fig. 8 is a rear view of the first buckle half of the helmet retention system of Fig. 1;

[0024] Fig. 9 is a front view of a retainer of the helmet retention system of Fig. 1;

[0025] Fig. 10 is a front perspective view of a length adjustor of the helmet retention system of Fig. 1;

[0026] Fig. 11 is a rear perspective view of a length adjustor of the helmet retention system of Fig. 1;

[0027] Fig. 12A is a side cross-sectional view of a length adjustor of the helmet retention system of Fig. 1 with a side strap extending therethrough and an end of the side strap fixed thereto in accordance with an embodiment of the present disclosure;

[0028] Fig. 12B is a side cross-sectional view of a length adjustor of the helmet retention system of Fig. 1 with a side strap extending therethrough and an end of the side strap fixed thereto;

[0029] Fig. 13 is a partial side perspective view of the helmet retention system of Fig. 1 ;

[0030] Fig. 14 is a rear perspective view of an anchor of the helmet retention system of Fig. 1;

[0031] Fig. 15 is a front perspective view of an anchor of the helmet retention system of Fig. 1;

[0032] Fig. 16 is a is a front perspective view of an anchor of the helmet retention system of Fig.1 with a bolt component disposed therein;

[0033] Fig. 17 is a front top perspective view of a helmet retention system coupled to a helmet in accordance with a second exemplary embodiment of the present invention;

[0034] Fig. 18 is a front bottom perspective view of the helmet retention system of Fig. 17;

[0035] Fig. 19 is a bottom view of a chin strap support in a first use position in accordance with a third exemplary embodiment of the present invention; and

[0036] Fig. 20 is a bottom view of the chin strap support of Fig. 19 in a second use position;DETAILED DESCRIPTION

[0037] Helmets for head protection are worn in a variety of environments and for various purposes. Helmets are often secured to a wearer's head by a flexible chin strap. The chin strap may include multiple segments of flexible strap material that are secured at either side of the helmet and pass below the chin, where the segments are releasably joined. In some helmets, the strap segments on either side of the helmet are attached to the helmet at two positions, in front of and behind the wearer's ear. When joined, the two strap segments form a single strap that may be adjusted in length. Many of the available approaches to connecting the strap segments are cumbersome and lack security. In some cases, for example, the wearer must pass one end of the strap through a buckle or a pair of “D-rings” with a return loop, making it difficult to quickly remove the helmet in an emergency. In other cases, a quick release “snap” may lack security due to the possibility of accidental release. Two- finger release mechanisms, while more secure, typically attach to the ends of the strap segments and thus require intervening length in line with the straps. This makes it difficult to place the fastener near the chin, which can be important to the stability of the helmet.

[0038] Conventional helmet straps may also be difficult to adjust. If a single strap is provided on each side of the helmet, for example, the adjustment can be made at the buckle where the straps are joined. If the strap has connections at two positions on each side of the helmet, however, the two separate strap segments each need adjustment for length, but generally have no convenient buckle or termination to accommodate such adjustment. A typical approach for adjusting the length of these strap segments is to fix one end of the strap and loop the free end through a buckle or ring, returning it to a ladder-lock adjustment mechanism positioned along the length of strap. By pushing more or less of the free end through the ladder lock, the length of a strap segment is altered. The geometry of this solution dictates that for each inch of length adjustment, the free end must move two inches. The free strap end that extends beyond the ladder lock may be secured with an additional component such as a clasp, or in some designs the wearer can adjust the position of the ladder lock along the strap segment to minimize the length of the exposed strap. In any case, the result is that adjusting the length of helmet straps is neither fast nor convenient and may require removing the helmet and making multiple adjustments, repositioning the ladder lock, and trying the helmet again for proper fit.

[0039] While adjustment theoretically is needed only when the helmet is first acquired, in practice the wearer may wish to adjust the tightness of the straps according to circumstances. In active situations, for example, especially if additional accoutrements such as night-vision goggles are attached to the helmet, the wearer may wish the straps to be tighter than normally required.

[0040] Further, traditional chinstraps may have several inconveniences and limitations in practical use. For example, wearing a chin strap that engages both the front and bottom of a chin (e.g., a chin cup) may interfere with the use of certain useful accessories, such as gas masks. Prolonged use may lead to discomfort and skin irritation due to the multiple areas of direct contact with the face, and the tightness required to secure the mask in place can impede natural jaw movements, hindering communication and causing fatigue during extended use. Additionally, adjusting the chinstrap in challenging conditions, such as low visibility or high-stress situations, may prove cumbersome and time-consuming, potentially impacting the effectiveness and efficiency of the wearer. As such, there is a need for a convertible chin strap that can be worn on or below the chin. While using a face accessory or in low impact movements, the chin strap may be worn under the chin, and while in high impact movements the chin strap may engage the front and bottom of the chin to reduce movement of the helmet relative to the user’s head.

[0041] Referring to the drawings in detail, wherein like reference numerals indicate like elements throughout, there is shown in Figs. 1-20 a helmet retention system, generally designated 100, in accordance with exemplary embodiments of the present invention. The helmet retention system 100 may offer several advantages over traditional helmet retention systems. For example, a chin strap support of the present disclosure may be configured to ensure optimal comfort and usability, minimizing the risk of skin irritation during prolonged use and allowing facial accessories to be used without interference. Improved length adjustment may allow for a customized fit, ensuring stability without impeding movement. The buckle and anchor of the present disclosure may be configured to be secured to the helmet and provide quick and efficient adjustments, enabling users to swiftly and confidently secure their helmets, enhancing overall readiness and safety in dynamic operational environments.

[0042] Referring to Fig. 1, there is shown a helmet retention system 100 coupled to a helmet 102. The helmet 102 may be a ballistic protection helmet made of composite materials having a helmet shell. The helmet 102 may be a helmet shell for use in a variety of environments and for various purposes including, but not limited to, adventure activities, sporting, industrial safety, and police or military purposes. In some embodiments, the helmet 102 may be any type of head protection helmet shell known in the art. For example, helmet 102 may be included in a standard infantry ballistic helmet, an advanced combat helmet (ACH) an enhanced combat helmet 10 (ECH), a modular integrated communications helmet (MICH), a tactical ballistic helmet (TBH), a lightweight marine helmet, police general duty helmet, a personnel armor system for ground troops (PASGT), or an aircrew helmet, such as an HGU-56 / P rotary wing helmet or an HGU 55 / P fixed wing helmet. The compositematerials may combine the benefits of multiple materials, such as the substrate (e.g., ultra-high molecular weight polyethylene (UHMWPE)), the ultrahard particles (e.g., ceramics), the non- elastomeric polymer binder, and / or the polymeric layer, and enhances the performance of the article against high-velocity ballistic threats or the like.

[0043] The helmet shell may have a first side and a second side (e.g., left and right). The first side of the helmet shell may be opposite the second side of the helmet shell. For example, the first side of the helmet shell may extend from a front of the helmet shell to the back of the helmet shell proximate the user’s right ear and the second side of the helmet shell may extend from a front of the helmet shell to the back of the helmet shell proximate the user’s left ear. In some embodiments, the first side of the helmet shell may extend proximate the user’s left ear, and the second side of the helmet shell may extend proximate the user’s right ear. The first side of the helmet shell and the second side of the helmet shell may be defined by a central equator extending around a top of the helmet 102 and an edge extending around the helmet 102. As described in more detail below, the helmet retention system 100 may include a number of soft goods components (straps, leather liner, etc.) and hardware (anchors, buckles, locks, etc.) components interacting with each other to form an adjustable helmet retention system 100.

[0044] The helmet retention system 100 may include a side strap 104 coupled to and extending from the helmet 102. The side strap 104 may have a width of at least 1 / 2 inch. In some embodiments, the width of the side strap 104 is at least 1 / 8 inch, 3 / 16 inch, 1 / 4 inch, 5 / 16 inch, 3 / 8 inch, 7 / 16 inch, 9 / 16 inch, 5 / 8 inch, 11 / 16 inch, 3 / 4 inch, 13 / 16 inch, 7 / 8 inch, or 15 / 16 inch. The side strap may have a width between 1 / 8 inch and 15 / 16 inch, between 3 / 16 inch and 7 / 8 inch, between 1 / 4 inch and 13 / 16 inch, between 5 / 16 inch and 3 / 4 inch, between 3 / 8 inch and 11 / 16 inch or between 7 / 16 inch and 5 / 8 inch. The side strap 104 may be made from a material with limited stretch (e.g., nylon, Nomex, Kevlar, or similar). The side strap 104 may have a coefficient of friction sufficient to balance the ability to slide through hardware components to adjust a length, and the ability to fix relative to the hardware components during use. In some embodiments, the side strap 104 is fire resistant. The side strap 104 may be rated to hold at least 150 lbs. In some embodiments, the side strap is rated to hold at least 160 lbs., at least 170 lbs., at least 180 lbs., at least 190 lbs., at least 200 lbs., at least 225 lbs., at least 250 lbs., at least 275 lbs. or at least 300 lbs.

[0045] The side strap 104 may be coupled to the helmet 102 by an anchor 110 (Figs. 13-15). The helmet retention system 100 may include a chin strap support 106 coupled to the side strap 104 that engages the front and bottom of a user’s chin. As described in more detail below, the chin strap support 106 may be convertible between an over-chin position (e.g., chin cup) and an under-chinposition (e.g., chin strap). The helmet retention system 100 may include a buckle 108 (Figs. 2A-3) releasably connecting the chin strap support 106 and the side strap 104. The helmet retention system 100 may include a length adjustor 112 slidably coupled to the side strap 104 and coupled to an end of the side strap to allow a user to control the effective length of the side strap 104.

[0046] Referring to Figs. 1-3, the chin strap support 106 may provide an increased amount of stability and comfort around the user’s chin compared to traditional chin supports. The chin strap support 106 can be worn over or under the chin, based on user preference, simply by manipulating one side of the webbing. The chin strap support 106 may include a first support strap 114. The first support strap 114 may be shaped and sized to extend from one side of a user’s jaw to the other side of the user’s jaw. The chin strap support 106 may include a second support strap 116 coupled to and movable relative to the first support strap 114. The second support strap 116 may have a common shape and size to the first support strap 114.

[0047] Referring to Figs. 2A-3, the second support strap 116 may be movable between a first use position (e.g., an over-chin position in Figs. 2A-2B) and a second use position (e.g., an under-chin position in Fig. 3). A middle section of the second support strap 116 may be spaced from a middle section of the first support strap 114 to expose the chin between the first support strap 114 and the second support strap 116 in the first use position. The area 115 between the first support strap 114 and the second support strap 116 in the first use position may form a generally almond shape. In some embodiments, the area 115 forms a generally oval shape in the first use position. The area 115 may reduce as the chin strap support 106 is moved from the first use position to the second use position. The area 115 may increase as the chin strap support 106 is moved from the second use position to the first use position. The middle section of the second support strap 116 may be stacked on top of the middle section of the first support strap 114 in the second use position, as shown in Fig. 3. While the first support strap 114 is shown as a lower support strap and the second support strap 116 is shown as a front support strap, it should be appreciated that the first support strap 114 may be the front support strap or the bottom support strap in the first use position. As such, the second support strap 116 may also be the front support strap or the bottom support strap in the first use position.

[0048] The distance between the first support strap 114 and the second support strap 116 in the second use position may be less than 3 inches. In some embodiments, the distance between the first support strap 114 and the second support strap 116 in the second use position may be less than 0.5 inches, less than 1 inch, less than 1.5 inches, less than 2 inches, less than 2.5 inches, or less than 3 inches. In some embodiments, the distance between the first support strap 114 and the second supportstrap 116 in the second use position may be between 0.5 inches and 3 inches, between 1 inch and 2.5 inches, or between 1.5 inches and 2 inches.

[0049] It may be advantageous for the chin strap support 106 to remain in the first use position or the second use position during use and when the helmet 102 is removed from the user’s head. Referring to Figs. 2A-2B, the end of the first support strap 114 and the second support strap 116 may include at least one retention projection 117 defined thereon. The retention projection 117 may be a length of stitching (e.g., bar tack). In some embodiments, the retention projection 117 is a member coupled to the chin strap support 106, an extra layer of material, or stitching. The retention projection 117 may increase the thickness of the end of the first support strap 114 and the second support strap 116. The retention projection 117 may create friction between the chin strap support 106 and the buckle 108 / retainer 122, thereby reducing unintended movement from the first use position to the second use position. In some embodiments, the chin strap support 106 includes a first retention projection 117a and a second retention projection 117b spaced apart from each other to further increase friction between the chin strap support 106 and the buckle 108 / retainer 122. The first retention projection 117a and the second retention projection 117b may be parallel to one another.

[0050] The side strap 104 may be coupled to and extending from an end of the chin strap support 106. The chin strap support 106 may be slidably coupled to the side strap 104. The side strap 104 may comprise a flexible material that is durable and lightweight to ensure comfort, functionality and resilience (e.g., nylon webbing, polyester webbing, polypropylene, or other elastomeric materials). The side strap 104 may be a material suitable to retain a helmet on a user during high impact use. The side strap 104 may be slidably coupled to an anchor 110 that is coupled to the helmet 102, as shown in Fig. 13. The side strap 104 may include a first side strap 104a coupled to and extending from a first end of the chin strap support 106 and a second side strap 104b coupled to and extending from a second end of the chin strap support 106.

[0051] Referring to Figs. 2A-3, as discussed in more detail below, the buckle 108 may removably couple the side strap 104 and the chin strap support 106. The first support strap 114 and the second support strap 116 may each comprise ends. The ends may be located proximate to the junction of the chin strap support and the side strap 104. The middle section for each of the first support strap 114 and the second support strap 116 may extend between each of the respective ends. The middle section of each of the first support strap 114 and the second support strap 116 may be freely movable relative to each other. As shown in Figs. 2A-3, the ends of the first support strap 114 and the ends of the second support strap 116 overlap each other in the first use position and in the second use position.

[0052] The first support strap 114 and the second support strap 116 may be comprised of a webbing material. For example, the flexible material described above. Referring to Fig. 4, a side of each of the first support strap 114 and the second support strap 116 are lined with a user engagement material that is softer than the webbing material. The user engagement material may be a leather (e.g., sheep skin leather). In some embodiments, the user engagement material is neoprene, memory foam, silicone, microfiber, mesh, or other moisture-wicking material. The user engagement material may cover at least a portion of the first support strap 114 and the second support strap 116.

[0053] To avoid interference with facial accessories (e.g., gas mask) or simply user preference (e.g., comfort), the chin strap support 106 may be moved into the second use position. Comfort and compact footprint are important considerations when the chin strap support 106 is in the second use position. As such, in some embodiments, the entire second support strap 116 stacks on top of the first support strap 114 in the second use position. In some embodiments, the entire first support strap 114 stacks on top of the second support strap 116 in the second use position. The second support strap 116 may slide between the first use position and the second use position. In one embodiment, the chin strap support 106 may be transitioned from one position to another during use and with a single hand.

[0054] The chin strap support 106 may be made from one piece of material. Referring to Fig. 4, the first support strap 114 and the second support strap 116 may comprise a single continuous length of a webbing material. As such, when the chin strap support is coupled to the side strap 104, the first support strap 114 and the second support strap 116 are a fixed length. In some embodiments, the ends of the first support strap 114 and the second support strap 116 are pivotably coupled to each other. As discussed below in more detail, the chin strap support 106 may be coupled to the side strap 104 with a buckle 108 on one end and a retainer 122 on the other end.

[0055] The side strap 104 may include one or more extensions. These extensions may allow the side strap 104 to anchor at more than one location on the helmet 102 to provide additional stability to a user when the helmet 102 is worn. The side strap 104 may include a first side strap extension 118 extending from the chin strap support 106 in a first direction. As shown, the first side strap extension 118 may extend in a generally vertical direction from the chin strap support 106. The side strap 104 may include a second side strap extension 120 extending from the chin strap support 106 in a second direction. As shown, the second side strap extension 120 may extend in a generally horizontal direction from the chin strap support 106. The first side strap extension 118 and the second side strap extension 120 may form an acute angle at the junction of the chin strap support 106 and the side strap 104. The angle A formed between the first side strap extension 118 and the second side strap extension 120 may vary depending on the specific application of the helmet and each may be anchored in variouslocations on the helmet 102. Referring to Fig. 3, the angle A defined by the first side strap extension 118 and the second side strap extension 120 may be approximately 45°. In some embodiments, angle A may be approximately 30°, approximately 40°, approximately 50°, approximately 60°, approximately 70°, approximately 80°, or approximately 90°. In some embodiments, angle A may be less than 30°, less than 40°, less than 50°, less than 60°, less than 70°, less than 80°, or less than 90°. In some embodiments, angle A may be between 30° and 90°, between 40° and 80°, between 50° and 70°, or between 55° and 65°.

[0056] Referring to Figs. 19-20, there is shown a second embodiment of the chin strap support, generally designated 2106. The chin strap support 2106 is similar to the first embodiment of the chin strap support 106 except that the second support strap 2116 of the chin strap support 2106 flips between the first use position and the second use position instead of sliding. In the first use position, the second support strap 2116 may be separated from the first support strap 2114. The second support strap 2116 may have an inside 2116a and an outside 2116b opposite the inside 2116a. The inside 2116a may face toward the user’s chin and the outside 2116b may face away from the user’s chin in the first use position. Referring to Fig. 20, the second support strap 2116 may be flipped in the second use position whereby the inside 2116a faces away from the user’s chin and the outside 2116b faces the user’s chin. The outside 2116b may engage the first support strap 2114 in the second use position. Chin strap support 2106 may be flipped or slid between the first use position and the second use position depending on the user’s preference.

[0057] The second support strap 2116 may be stitched to the first support strap 2114 at a support strap junction 2118. The second support strap 2116 may include two ends, each of the two ends coupled to the first support strap 21 14 at a support strap junction 2118. A crease 2120 may be defined or formed proximate the support strap junction 2118 on the second support strap 2116. The crease 2120 may guide the movement of the second support strap 2116 between the first use position and the second use position. The second support strap 2116 may fold about the crease 2120. A grip tab 2124 (not shown) may be included on the second support strap 2116. The grip tab 2124 may improve ease of use for a user moving the second support strap 2116 between the first use position and the second use position. The grip tab 2124 may be particularly useful if a user is wearing gloves, thereby enabling the user to quickly move the second support strap 2116 without having to remove the gloves.

[0058] Referring to Figs. 6-7, to allow a user to secure and remove the helmet from their head, the buckle 108 may be provided to removably couple the side strap 104 and the chin strap support 106. The buckle 108 may be designed to let the webbing slide through but also hold in a set location. This may enable greater adjustment for chin location and size to accommodate users of many shapes andsizes. As discussed, these same features are replicated on the opposite side in the retainer 122 but without the latching features of the buckle 108.

[0059] Referring to Figs. 6-7, the buckle 108 may have a first buckle half 124. The buckle 108 may have a second buckle half 126 removably couplable to the first buckle half. The first buckle half 124 may latch to the second buckle half 126. The second buckle half 126 may be a male buckle half and the first buckle half 124 may be a female buckle half. While the buckle 108 is shown as a male and female buckle, in some embodiments, the buckle 108 is a magnetic buckle, a hook-and-loop fastener, a snap fastener, a toggle and loop closure, a ratchet buckle, or other acceptable buckle or lock. The first side strap 104a may be coupled to and extending from the first buckle half 124. The second side strap 104b may be coupled to and extending from the second buckle half 126. In some embodiments, the second side strap 104b coupled to and extending from the second buckle half 126 is the chin strap support 106.

[0060] Referring to Fig. 7, the first buckle half 124 is shown spaced apart from the second buckle half 126. The first buckle half 124 may have a first buckle aperture 128 and a second buckle aperture 130 spaced apart from the first buckle aperture 128. The first side strap 104a may extend into the first buckle aperture 128 and out of the second buckle aperture 130 thereby slidably coupling the first buckle half 124 to the first side strap 104a. The first buckle half 124a may be selectively repositioned along a length of the first side strap 104a before use. The first buckle aperture 128 and the second buckle aperture 130 may be non-parallel to one another.

[0061] Referring to Fig. 6, an axis extending through a length of the first buckle aperture 128 and an axis extending through a length of the second buckle aperture 130 may form an obtuse angle. The angle E formed by the axis extending through a length of the first buckle aperture 128 and the axis extending through a length of the second buckle aperture 130 may form an obtuse angle that may be approximately 150°. In some embodiments, the angle E formed by the axis extending through a length of the first buckle aperture 128 and the axis extending through a length of the second buckle aperture 130 is less than 180°, less than 170°, less than 160°, less than 150°, less than 140°, less than 130°, less than 120°, less than 110°, or less than 100°. In some embodiments, the angle E formed by the axis extending through a length of the first buckle aperture 128 and the axis extending through a length of the second buckle aperture 130 is between 90° and 180°, between 100° and 170°, between 110° and 160°, between 120° and 150°, or between 130° and 140°.

[0062] The first buckle aperture 128 may be defined by an exterior beam 134 and an interior beam 136. While the first buckle aperture 128 is described below, the second buckle aperture 130 may include substantially similar components. The exterior beam 134 and the interior beam 136 may bespaced apart to allow the first side strap 104a to pass therethrough. The exterior beam 134 may extend along a plane that is nonparallel to a plane of the interior beam 136. This non-planar relationship may direct the first side strap 104a above or below the first buckle half depending on the orientation. For example, if the plane of the interior beam 136 is above the plane of the exterior beam 134, the first side strap 104a will be directed down relative to the first buckle half 124. If the plane of the interior beam 136 is below the plane of the exterior beam 134, the first side strap 104a will be directed up relative to the first buckle half 124.

[0063] When the first buckle half 124 is positioned on the first side strap 104, it may be desirable for the first buckle half 124 to remain stationary relative to the first side strap 104 during use. Referring to Fig. 7, the first buckle half 124 may include a plurality of pointed projections 132. The projections 132 may be extending from the exterior beam 134 into the first buckle aperture 128. The second buckle aperture 130 may also include a plurality of projections extending from the exterior beam 134 therein. The projections 132 may be aligned in a row perpendicular to the length of the first side strap 104a when the first side strap 104 extends therethrough. The projections 132 may engage the first side strap 104a to prevent movement of the first buckle half 124 along the length of the first side strap 104a during use. The first side strap 104a may be loosened by a user to adjust the first buckle half 124 relative to the first side strap 104a.

[0064] Referring to Figs. 6-7, the first buckle half 124 may include a latch receiver 138 defined thereon. The latch receiver 138 may be shaped and sized to receive at least a portion of the second buckle half 126. The latch receiver 138 may have an opening 140 defined at an end thereof. The opening 140 may be generally rectangular and may be shaped and sized to allow at least a portion of the second buckle half 126 to pass therethrough. The latch receiver 138 may have at least one side aperture 142 defined thereon. The side aperture 142 may extend along a side of the latch receiver 138. The side aperture 142 may be shaped and sized to allow at least a portion of the second buckle half 126 to pass therethrough. The latch receiver 138 may have a retention shelf. The retention shelf 144 may extend in a perpendicular plane to a plane of the side aperture 142. As described in more detail below, the retention shelf 144 may be shaped and sized to engage a portion of the second buckle half.

[0065] Referring to Fig. 7, the second buckle half 126 is shown spaced apart from the first buckle half 124. The arrow in Fig. 7 shows the direction the second buckle half 126 moves to couple to the first buckle half 124. The second buckle half 126 may be the male buckle. The second buckle half 126 may include a strap beam 146 extending along an end thereof. The strap beam 146 may be spaced apart from a body 148 of the second buckle half 126 thereby creating a male buckle aperture 150extending therethrough. The male buckle aperture 150 may be shaped and sized to allow the second side strap 104b to extend therethrough. The second buckle half 126 may include a user engagement surface 1 2 defined on either side of the body 148. The strap beam 146 may be coupled to the user engagement surface 152. The user engagement surface 152 may have a ribbed surface to create friction to improve handling of the second buckle half 126 by a user.

[0066] The second buckle half 126 may have a central extension 154 and at least one flexible arm 156. The central extension 154 may be a rigid member. The central extension 154 may have a length equal to or greater than a length of the flexible arm 156. The central extension 154 may have a blunt end 158 defined thereon to engage an end of the latch receiver 138 when the second buckle half 126 is disposed in the first buckle half 124. The at least one flexible arm 156 may extend from the body 148 on a parallel plane to that of the central extension 154. The flexible arm 156 may include a retention extension 160 extending therefrom. The retention extension 160 may extend in a direction opposite the central extension 154. The retention extension 160 may have a generally hook shape with an end extending toward the body 148.

[0067] A user of the helmet retention system 100 may need to couple and decouple the buckle 108 during use, for example, to remove the helmet 102, to adjust the length of the side strap 104, and / or to adjust the position of the chin strap support 106. When coupling the first buckle half 124 and the second buckle half 126, the user urges the components toward each other. The at least one flexible arm 156 of the second buckle half 126 may flex toward the central extension 154 as it passes through the opening 140. As the user continues to move the components toward each other, the flexible arm 156 may be allowed to flex outward away from the central extension 154 as the retention extension passes through the side aperture 142 of the first buckle half 124. The retention extension 160 may engage the retention shelf 144 thereby preventing separation of the first buckle half 124 and the second buckle half 126. A user may depress the flexible arm 156 toward the central extension 154 to separate the first buckle half 124 and the second buckle half 126.

[0068] The second buckle half 126 may be slidably coupled to the second side strap 104b. The second side strap 104b may extend through the male buckle aperture. In some embodiments, the second buckle half is coupled to an end of the chin strap support 106. The strap beam 146 may be a generally smooth member to reduce friction between the second buckle half 126 and the second side strap 104b.

[0069] Referring to Fig. 9, the retainer 122 is shown. The retainer 122 may have substantially similar components to that of the first buckle half 124 without the latch receiver 138. The retainer 122 may have an exterior beam 170 and an interior beam 172 defining a first retainer aperture 164.The exterior beam 170 may include a plurality of projections 168 extending into the first retainer aperture 164. The second retainer aperture 166 may also include a plurality of projections 168 extending from the exterior beam 170 therein. The exterior beam 170 defining the first retainer aperture 164 and the exterior beam 170 defining the second retainer aperture 166 may be non-planar. The projections 168 may be aligned in a row perpendicular to the length of the second side strap 104b when the second side strap 104b extends therethrough. The projections 168 may engage the second side strap 104b to prevent movement of the retainer 122 along the length of the second side strap 104b during use.

[0070] The retainer 122 may include a chin strap beam 174 defined on a side thereof. The chin strap beam 174 may be spaced apart from the retainer 122 and may define a retainer chin support aperture 176 therethrough. The retainer chin support aperture 176 may be shaped and sized such that an end of the chin strap support 106 may pass therethrough. The chin strap support 106 may be slidably coupled to the retainer 122 at the strap beam 174. The retainer chin support aperture 176 may be shaped and sized to allow the second side strap 104b to pass therethrough as well. The second side strap 104b may pass through the first retainer aperture 164, pass through the retainer chin support aperture 176, and pass through the second retainer aperture 166.

[0071] Referring to Figs. 10-12, the ability to adjust the length of the side strap 104 offers several advantages, contributing to improved comfort, functionality, and overall user satisfaction. Traditional length adjustors are stitched to a strap rendering the length adjustment functionality useless if a length adjustor is broken or otherwise compromised. As described in more detail below, the side strap 104 is not stitched to the length adjustor 112 and may be easily removed and replaced. A length adjustor 112 may be slidably coupled to the side strap 104. A length adjustor may be slidably coupled to the first side strap 104a and the second side strap 104b. A length adjustor 112 may be slidably coupled to the first side strap extension 118 and the second side strap extension 120.

[0072] Referring to Figs. 10-12A, the length adjustor 112 of the helmet retention system 100 is shown. The length adjustor 112 may have a generally rectangular frame 186 having an upper crossmember 178, a central cross-member 180 and a lower cross-member 182. The frame 186 may have a rail 184 extending along at least one side thereof. The rail 184 may extend along a plane perpendicular to a plane of the upper cross-member 178, a central cross-member 180 and a lower cross-member 182. The rail 184 may have a ribbed surface to improve user engagement during adjustment of the length adjustor 112 relative to the side strap 104.

[0073] The upper cross-member 178 and the central cross-member 180 may be separated thereby forming a first length adjustor aperture 190. The first length adjustor aperture 190 may be shaped andsized to allow the side strap 104 and an end 192 of the side strap 104 to pass therethrough. The central cross-member 180 and the lower cross-member 182 may be separated thereby forming a second length adjustor aperture 194. The second length adjustor aperture 194 may be shaped and sized to allow the side strap 104 and an end 192 of the side strap 104 to pass therethrough.

[0074] Referring to Fig. 12A, the central cross-member 180 may have a lower-side edge 188. The lower-side edge 188 may extend along a length of the central cross-member 180 and may form a generally acute angle extending away from the central cross-member 180. The angle B defined by the lower-side edge 188 may be less than 90°. In some embodiments, the angle B defined by the lower-side edge 188 is less than 80°, less than 70°, less than 60°, less than 50°, less than 40°, less than 30°, less than 20°, or less than 10°. In some embodiments, the angle B defined by the lower-side edge 188 is between 10° and 90°, between 20° and 80°, between 30° and 70°, between 40° and 60°, or between 45° and 55°.

[0075] The orientation of the lower-side edge 188 may be pointed below the lower cross-member 182. This orientation may promote engagement of the lower-side edge 188 and the side strap 104, as described in more detail below. The orientation of the lower-side edge 188 may define an indent 181 between the lower-side edge 188 and the lower cross-member 182. The indent 181 may engage at least a portion of the end 192 when the lower-side edge 188 is disposed in the end 192, thereby causing the end 192 to nest therein. The indent 181 may form a generally obtuse angle. The angle C defined by the lower-side edge 188 and the lower cross-member 182 may be less than 180°. In some embodiments, the angle C defined by the lower-side edge 188 and the lower cross-member 182 is less than 170°, less than 160°, less than 150°, less than 140°, less than 130°, less than 120°, less than 110°, or less than 100°. In some embodiments, the angle C defined by the lower-side edge 188 and the lower cross-member 182 is between 100° and 180°, between 110° and 170°, between 120° and 160°, between 130° and 150°, or between 135° and 145°.

[0076] The side strap 104 may be coupled to and extending from the chin strap support 106. Still referring to Fig. 12, the end 192 of the side strap 104 may be folded over at least once to form one or more overlapping portions that may be fixed to one another. In some embodiments, the end 192 includes a first fold 193a forming a pocket 195 that receives the lower-side edge 188 of the central cross-member 180. The end 192 may include a second fold 193b and third fold 193c proximate the central cross-member 180 opposite the first fold 193a. The second fold 193b and third fold 193c may form a bound end 197 of the side strap 104. In some embodiments, the bound end 197 includes portions of the side strap 104 that are folded over one another and bound together via one or more fasteners. For example, the bound end 197 includes overlapping portions of the strap 104 that arefixedly coupled to one another via adhesives, stitching, and / or a binding member (e.g., a binding strap, a tape member illustrated in broken line in Fig. 12). In some embodiments, the bound end 197 engages the central cross-member 180.

[0077] The lower-side edge 188 may be received within the pocket 195 of the side strap 104, preventing the end 192 of the side strap from passing thereby. In one embodiment, the force from side strap 104 and tension on end 192, helps to anchor the pocket 195 of the end 192 onto the central cross-member 180 during use. In some embodiments, a user may reposition the bound end 197 of the strap 104 relative to the length adjustor 112 when adjusting the effective length of the strap 104. For example, a user may pull the bound end 197 away from the central cross-member 180 and adjust the position of the length adjustor 112 along the strap 104 until the bound end 197 engages with the central cross-member 180 again thereby adjusting the effective length of the strap 104. The side strap 104 extending through the length adjustor 112 engages the upper cross-member 178, the lower crossmember 182 and / or the central cross-member 180.

[0078] The upper cross-member 178 may include an acutely angled inner edge 196. The edge 196 may include a plurality of projections 200 extending from the inner edge 196. The projections 200 may engage the side strap 104 to reduce movement of the length adjustor 112 along the side strap 104 during use. The upper cross-member 178 may include a flared, finger-engageable outer portion 198. The outer portion 198 may extend outwardly from a plane of the frame 186. The outer portion 198 may be shaped and sized to receive a portion of a user’s finger to rotate the length adjustor 112 about an axis extending through the central cross-member 180. In some embodiments, the outer portion 198 may be shaped and sized to receive a tool.

[0079] The lower cross-member 185 may have a smooth rounded surface in contact with the side strap 104. The lower cross-member 185 may be shaped and finished to reduce friction between the side strap 104 and the length adjustor 112.

[0080] Rotation of the length adjustor 112 about an axis running essentially through the central cross-member 180, by moving the finger-engageable upper cross-member 178 in a direction to release engagement of the acutely angled inner edge 196 from the strap, frees the length adjustor 112 with respect to the side strap 104 to adjust the length thereof. The smooth rounded surface of the lower cross-member 185 slides along the side strap 104 during adjustment.

[0081] Referring to Fig. 12B, there is shown a length adjustor 112 coupled to a side strap 104’ in accordance with another embodiment of the present disclosure. The side strap 104’ may be generally the same as side strap 104 except that it may be configured to engage with the central cross-member 180 in a different manner than that described above with regards to Fig. 12A. As discussed above,the central cross-member 180 may have a lower-side edge 188. The lower-side edge 188 may extend along a length of the central cross-member 180 and may form a generally acute angle extending away from the central cross-member 180. The angle B defined by the lower-side edge 188 may be less than 90°. In some embodiments, the angle B defined by the lower-side edge 188 is less than 80°, less than 70°, less than 60°, less than 50°, less than 40°, less than 30°, less than 20°, or less than 10°. In some embodiments, the angle B defined by the lower-side edge 188 is between 10° and 90°, between 20° and 80°, between 30° and 70°, between 40° and 60° or between 45° and 55°.

[0082] The orientation of the lower-side edge 188 may be pointed below the lower crossmember 182. This orientation may promote engagement of the lower-side edge 188 and the side strap 104’, as described in more detail below. The orientation of the lower-side edge 188 may define an indent 181 between the lower-side edge 188 and the lower cross-member 182. The indent 181 may engage at least a portion of the end 192’ when the lower-side edge 188 is disposed in the end 192’, thereby causing the end 192’ to nest therein. The indent 181 may form a generally obtuse angle. The angle C defined by the lower-side edge 188 and the lower cross-member 182 may be less than 180°. In some embodiments, the angle C defined by the lower-side edge 188 and the lower cross-member 182 is less than 170°, less than 160°, less than 150°, less than 140°, less than 130°, less than 120°, less than 110° or less than 100°. In some embodiments, the angle C defined by the lower-side edge 188 and the lower cross-member 182 is between 100° and 180°, between 110° and 170°, between 120° and 160°, between 130° and 150°, or between 135° and 145°.

[0083] The side strap 104’ may be coupled to and extending from the chin strap support 106. Still referring to Fig. 12B, the end 192’ of the side strap 104’ may be folded over and stitched to itself leaving a short overlapping tab 193’ and a pocket 195’ to receive the lower-side edge 188 of the central cross-member 180. The tab 193’ may be folded over onto itself. In some embodiments, a series of stitching 197’ connects the tab 193’ to a portion of the end 192’ and forming pocket 195’. In other embodiments, the tab 193’ includes stitching extending through adjacent portions of the tab 193’ formed by the fold in the tab 193’. The tab 193’ may extend from the pocket 195’ less than 10 mm. In some embodiments, the tab 193’ extends from the pocket 195’ less than 10 mm, less than 8 mm, less than 6 mm, less than 4 mm, less than 2 mm. In some embodiments, the tab 193’ extends from the pocket 195’ between 2 mm and 10 mm, between 3 mm and 9 mm, between 4 mm and 8 mm, between 5 mm and 7 mm, or between 5.5 mm and 6.5 mm.

[0084] The pocket 195’ may form an acute angle of the webbing material. The angle D formed by the pocket 195’ may be approximately 20°. In some embodiments, the angle D formed by the pocket 195 is less than 45°, less than 40°, less than 35°, less than 30°, less than 25°, less than 20°,less than 15°, less than 10°, or less than 5°. In some embodiments, the angle D formed by the pocket 195’ is between 5° and 45°, between 10° and 40°, between 15° and 35°, or between 20° and 30°.

[0085] The lower-side edge 188 may be received in the acute angle of the end 192’ of the side strap 104, preventing the end 192’ of the side strap from passing thereby. In one embodiment, the force from side strap 104 and tension on end 192’, helps to anchor the pocket 195’ of the end 192’ onto the central cross-member 180 during use. A user may urge the end 192’ away from the central cross-member 180 thereby separating the end 192’ therefrom. The user may then manipulate the end 192’ by forcing the tab 193’ against the end 192’, whereby angle D is approximately 0°. The end 192’ may be removed by passing the end through the first length adjustor aperture 190 and through the second length adjustor aperture 194’. The side strap 104’ extending through the length adjustor 112 engages the upper cross-member 178, the lower cross-member 182 and the end 192’ of the side strap 104’ only. The side strap 104 does not engage the central cross-member 180 when extending through the length adjustor 112.

[0086] Rotation of the length adjustor 112 about an axis running essentially through the central cross-member 180, by moving the finger-engageable upper cross-member 178 in a direction to release engagement of the acutely angled inner edge 196 from the strap, frees the length adjustor 112 with respect to the side strap 104’ to adjust the length thereof. The smooth rounded surface of the lower cross-member 185 slides along the side strap 104’ during adjustment.

[0087] Referring to Figs. 13-15, the ability to connect the helmet retention system 100 to both bolted and boltless helmets provides several advantages, contributing to versatility, adaptability, and user convenience. For example, the helmet retention system 100 may be interchangeable between helmet and users. This can be accomplished by coupling the helmet retention system 100 to a helmet 102 using the anchor 110. Interchangeability may lead to lost parts, however, as small components such as nuts and bolts can be dropped and misplaced.

[0088] Referring to Figs. 13-15, the anchor 110 is shown. The anchor may have a generally rectangular body 202. The comers of the anchor 110 may be rounded to allow rotation of the anchor relative to the helmet 102 in certain applications. The anchor 110 may include an anchor beam 204 spaced apart from the body 202 thereby defining an anchor strap aperture 206. The anchor strap aperture 206 may be shaped and sized to allow the side strap 104 to pass therethrough. The anchor beam 204 may be a generally rounded and smooth member. The side strap 104 may be slidably coupled to the anchor 110 at the anchor beam 204. The anchor 110 may be spaced apart from the chinstrap support 106. The length adjustor 112 may be coupled to the side strap 104 between the anchor 110 and the chin strap support 106.

[0089] The anchor 1 10 may have an anchor aperture 208 configured to receive a bolt component 210 of the helmet 102. The anchor aperture 208 may include at least one rib 212 extending radially inward from the anchor aperture 208. The rib 212 may engage the bolt component 210 when the bolt component 210 is received in the anchor aperture 208. The rib 212 may have a generally triangular cross-sectional shape along its length. In some embodiments, the rib 212 may be rounded. A height of the rib 212 may increase along its length. For example, the rib 212 may extend further from the anchor aperture 208 on a first side than a second side.

[0090] As such, an effective diameter DA of the anchor aperture 208 may decrease along its length due to the shape of the rib 212. The effective diameter DA of the anchor aperture 208 may be approximately 8 mm. In some embodiments, the effective diameter DA of the anchor aperture 208 is approximately 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm or 10 mm. In some embodiments, the effective diameter DA of the anchor aperture 208 is between 4 mm and 10 mm, between 5 mm and 9 mm, between 6 mm and 8 mm or between 6.5 mm and 7.5 mm.

[0091] The rib 212 may be a deformable member that flexes or deforms in response to a force and returns to its original shape and size when the force is removed. In some embodiments, the rib 212 is a rubber or silicone member. In some embodiments, the rib 212 is rigid. The bolt component 210 may be coupled to the anchor aperture 208 by friction between the bolt component 210 and the at least one rib 212. The bolt component 210 may be a nut (e.g., a t-nut) as shown in Fig. 16.

[0092] Referring to Fig. 15, the anchor 110 may include an access depression 214 proximate the anchor aperture 208. The access depression 214 may include at least one area abutting the anchor aperture 208 that is recessed from the body 202. The access depression 214 may be a generally rectangular shape. The access depression 214 may enable a tool, such as a wrench, to interact with the bolt component 210 while it is disposed in the anchor aperture 208.

[0093] Referring to Figs. 17-18, there is shown a second embodiment of the helmet retention system 100, generally designated 2100. The helmet retention system 2100 is similar to the first embodiment of the helmet retention system 100, except that it utilizes the side strap as the chin strap support. As shown in Fig. 17, a first side strap 2104a may be coupled to length adjustor 2112a and may extend through anchor 2110a coupled to the helmet 102. The first side strap 2104a may extend through length adjustor 2112a to the buckle 2108 and may extend through length adjustor 2112b. The first side strap 2104a may extend from the length adjustor 2112b through anchor 2110b and couple to length adjustor 2112b.

[0094] As shown in Fig. 18, a second side strap 2104b may be coupled to length adjustor 2112c and may extend through anchor 2110c (not shown) coupled to the helmet 102. The second side strap 2104b may extend through length adjustor 2112c to the retainer 2122 and may extend to buckle 2108. The second side strap 2104b may extend through retainer 2122 to length adjustor 2112d. Extension between the retainer 2122, the buckle 2108 and the retainer 2112 may form a chin-cup from the second side strap 2104b. The second side strap 2104d may extend from the length adjustor 2112d through anchor 21 lOd and couple to length adjustor 2112d.

[0095] The term “about” or “approximately” is used herein to provide literal support for the exact number that it precedes, as well as a number that is near to or approximately the number that the term precedes. In determining whether a number is near to or approximately a specifically recited number, the near or approximating unrecited number may be a number, which, in the context in which it is presented, provides the substantial equivalent of the specifically recited number. It should be appreciated that all numerical values and ranges disclosed herein are approximate values and ranges, whether “about” is used in conjunction therewith. It should also be appreciated that the term “about,” as used herein, in conjunction with a numeral refers to a value that may be ±0.01% (inclusive), ±0.1% (inclusive), ±0.5% (inclusive), ±1% (inclusive) of that numeral, ±2% (inclusive) of that numeral, ±3% (inclusive) of that numeral, ±5% (inclusive) of that numeral, ±10% (inclusive) of that numeral, or ±15% (inclusive) of that numeral. It should further be appreciated that when a numerical range is disclosed herein, any numerical value falling within the range is also specifically disclosed.

[0096] It will be appreciated by those skilled in the art that changes could be made to the exemplary embodiments shown and described above without departing from the broad inventive concepts thereof. It is to be understood that the embodiments and claims disclosed herein are not limited in their application to the details of construction and arrangement of the components set forth in the description and illustrated in the drawings. Rather, the description and the drawings provide examples of the embodiments envisioned. The embodiments and claims disclosed herein are further capable of other embodiments and of being practiced and carried out in various ways.

[0097] Specific features of the exemplary embodiments may or may not be part of the claimed invention and various features of the disclosed embodiments may be combined. Unless specifically set forth herein, the terms “a”, “an” and “the” are not limited to one element but instead should be read as meaning “at least one”. Finally, unless specifically set forth herein, a disclosed or claimed method should not be limited to the performance of their steps in the order written, and one skilled in the art can readily appreciate that the steps may be performed in any practical order.

Claims

CLAIMSWhat is claimed is:

1. A helmet retention system comprising: a chin strap support comprising a first support strap and a second support strap coupled to and movable relative to the first support strap, the second support strap movable between a first use position and a second use position, a middle section of the second support strap being spaced from a middle section of the first support strap to expose a portion of a user’s chin between the first support strap and the second support strap in the first use position, and the middle section of the second support strap being stacked on top of the middle section of the first support strap in the second use position.

2. The helmet retention system of claim 1 further comprising: a side strap coupled to and extending from an end of the chin strap support, the side strap including an anchor slidably coupled thereto.

3. The helmet retention system of claim 2, wherein the side strap comprises a first side strap coupled to and extending from a first end of the chin strap support and a second side strap coupled to and extending from a second end of the chin strap support.

4. The helmet retention system of claim 2, wherein the chin strap support is slidably coupled to the side strap.

5. The helmet retention system of claim 2, wherein the side strap comprises: a first side strap extension extending from the chin strap support in a first direction, and a second side strap extension extending from the chin strap support in a second direction that is nonparallel to the first direction.

6. The helmet retention system of claim 1, wherein the first support strap and the second support strap each comprise ends and the middle section for each of the first support strap and the second support strap extends between each of the respective ends, and wherein the middle section of each of the first support strap and the second support strap are freely movable relative to each other.

7. The helmet retention system of claim 6, wherein the ends of the first support strap and the ends of the second support strap overlap each other in the first use position and in the second use position.

8. The helmet retention system of claim 1, wherein the entire second support strap stacks on top of the first support strap in the second use position.

9. The helmet retention system of claim 1, wherein the second support strap slides between the first use position and the second use position.

10. The helmet retention system of claim 1, wherein the second support strap flips between the first use position and the second use position.

11. A helmet retention system comprising: a side strap coupled to and extending from a chin strap support, an end of the side strap including a first fold forming a pocket; and a length adjustor slidably coupled to the side strap, the length adjustor having a frame having upper, central and lower cross-members, the central cross-member having a lower-side edge, the lower-side edge received in the pocket of the end of the side strap to prevent the end of the side strap from passing thereby, wherein the side strap extends through the frame and engages the upper cross-member, the lower cross-member, and wherein the side strap includes a bound end engaged with the central cross-member.

12. The helmet retention system of claim 11, wherein the upper cross-member comprises an acutely angled inner edge and a flared, fmger-engageable outer portion extending outwardly from a plane of the frame, and wherein the lower cross-member comprises a smooth rounded surface in contact with the side strap.

13. The helmet retention system of claim 12, wherein the inner edge of the upper cross-member and the surface of the lower cross-member engage the side strap that extends through the frame.

14. The helmet retention system of claim 12, wherein rotation of the length adjustor about an axis extending through the central cross-member, by moving the finger-engageable upper crossmember in a direction to release engagement of the acutely angled edge from the strap, frees the length adjustor with respect to the side strap to adjust the length thereof.

15. The helmet retention system of claim 12, wherein the length adjustor includes a plurality of projections extending from the acutely angled inner edge configured to engage the side strap to reduce movement of the length adjustor along the side strap during use.

16. A ballistic helmet comprising: a helmet shell having a first side and a second side; a first side strap extending from the first side; a second side strap extending from the second side; and a chin strap support coupled to the first side strap and the second side strap, the chin strap support comprising a first support strap and a second support strap coupled to and movable relative to the first support strap, the second support strap movable between an over-chin position and an under-chin position, a middle section of the second support strap being spaced from a middle section of the first support strap to expose the chin between the first support strap and the second support strap in a first use position, and the middle section of the second support strap being stacked on top of the middle section of the first support strap in a second use position.

17. The ballistic helmet of claim 16 further comprising: a buckle having a first buckle half and a second buckle half removably couplable to the first buckle half, the first buckle half having a first buckle aperture and a second buckle aperture spaced apart from the first buckle aperture, wherein the side strap extends into the first buckle aperture and out of the second buckle aperture such that the first buckle half can be selectively repositioned along a length of the first side strap before use, and wherein the first buckle half includes a plurality of pointed projections aligned in a row perpendicular to the length of the side strap and configured to engage the first side strap to prevent movement of the first buckle half along the length of the first side strap during use.

18. The ballistic helmet of claim 16 further comprising: a length adjustor slidably coupled to the side strap, the length adjustor having a frame having upper, central and lower cross-members, the central cross-member having an elongate extension along a length thereof, the elongate extension configured to engage an end of the first side strap and prevent the end of the first side strap from passing thereby, wherein a length of the first side strap extending through the frame engages the upper crossmember, the lower cross-member and the end of the side strap.

19. The ballistic helmet of claim 16 further comprising: an anchor coupled to the helmet shell, the anchor slidably coupled to the first side strap and spaced apart from the chin strap support and having an anchor aperture configured to receive a bolt component, and at least one rib extending radially inward from the anchor aperture.

20. The helmet of claim 19, wherein an effective diameter of the anchor aperture decreases along its length such that a bolt component is coupled to the anchor aperture by friction between the bolt component and the at least one rib.

Images