WO2024044724A1

WO2024044724A1 - Helmet and adjustable chin strap and fit system assemblies

Info

Publication number: WO2024044724A1
Application number: PCT/US2023/072874
Authority: WO
Inventors: David T. Muskovitz
Original assignee: Resolution Strategic Development, Inc.
Priority date: 2022-08-24
Filing date: 2023-08-24
Publication date: 2024-02-29

Abstract

Disclosed are helmet and adjustable chin strap and/or fit assemblies that include an adjustable chin strap retention and/or fit system that solve some or all of the problems of the prior art. Specifically, disclosed are helmets and adjustable chin strap and/or fit system assemblies that include a helmet shell and a chin strap and/or fit system, where the chin strap and/or fit system includes a chin strap and/or fit strap and an actuator that can be manipulated by the wearer using one hand to selective shorten or lengthen the chin strap and/or fit strap in real time while the wearer is wearing the helmet and engaging in an activity. The chin strap and/or fit strap can be configured to cleanly and simply connect to the helmet shell, with two opposing ends of the chin strap and/or fit strap being attached to an inner component, an outer component, or between the inner and outer components of the helmet shell.

Description

HELMET AND ADJUSTABLE CHIN STRAP AND FIT SYSTEM ASSEMBLIES

BACKGROUND

Technical Field

[0001] This disclosure relates generally to helmets and, more specifically, to helmets with an adjustable chin strap and fit retention systems.

Related Technology

[0002] Safety helmets are well known and may be worn when participating in a wide variety of activities. For example, helmets are typically worn for cycling, snowboarding, skiing, skateboarding, rock climbing, football, baseball, field hockey, ice hockey, horse riding, scooter riding, motorcycle riding, military action, and construction sites, just to name a few. Damage and injury can be prevented or reduced by protective headwear that prevents hard, rough, or sharp objects from coming into direct contact with a wearer’s head. Damage and injury can also be prevented by protective headwear that absorbs and distributes the energy of an impact.

[0003] One aspect most conventional helmets share is a chin strap that connects under the wearer’s chin to keep the helmet in place on the wearer’s head during use. Ski and bike helmets typically include a chin strap that includes flexible webbing and a buckle that connects under the chin to selectively attach and release the chin strap. The webbing may connect to the helmet in multiple places and extend under the chin of the wearer during use. The length of the chin strap is typically adjustable via the buckle, which typically requires the wearer to remove the helmet to adjust the length. Adjustment to chin strips with under-the-neck buckles cannot be safely and effectively performed in real time, such as while the wearer is riding a bike, skiing, or engaging in sporting or other activities. Rather, such adjustments typically require the wearer to use both hands to release the buckle, adjust the strap length, and reconnect the buckle. This process may require several iterations to achieve the correct balance of comfort to the wearer and tightness for safety. Because adjusting the chin strap may be cumbersome, a wearer may decide to avoid the hassle and just “live with it”, which often results in suboptimal safety and/or comfort.

[0004] The chin strap can be made of multiple pieces or parts of flexible webbing. In some helmets, a first strap is connected to the helmet behind each of the wearer’s ears and a second strap is connected to the helmet in front of each of the wearer’s ears. The two straps are connected together with a clasp in a Y-shaped configuration to effectively form an integrated strap. The two integrated straps may be adjustable relative to each other via the clasp to increase fit and comfort. Again, such adjustments typically require the wearer to use two hands and are performed with the helmet removed from the wearer’s head.

[0005] The chin strap assists in keeping the helmet securely attached to the wearer’s head. Indeed, not only do they minimize occurrences of vertical movement of the helmet being projected off of the wearer’s head, but they also generally help to minimize occurrences where the helmet is pivoted off of or out of position on the front or rear portion of the wearer’s head. Such off-pivoting or out-of-position alignment can expose the vulnerable part of the wearer’s head to impact and injury. Thus, to ensure proper fit and safety, it is imperative for the wearer to properly adjust the tightness of the chin strap. However, for the reasons given above, a wearer may simply forgo the hassle of correctly adjusting the chin strap and instead wear the helmet with suboptimal fit, sacrificing comfort and/or safety.

[0006] Another aspect many helmets include, particular bicycle helmets, is a fit system that wraps around at least a portion of the wearer’s head. The fit system can be used to provide a more customizable and comfortable fit between a generically sized helmet and the particularly sized head of a wearer. The fit system can help minimize the occurrence of unwanted movement during, including minimizing the occurrence of helmets pivoting off of or out of position on the front or rear portion of the wearer’s head. Such off-pivoting or out-of-position alignment can potentially expose the vulnerable part of the wearer’s head to impact and injury.

[0007] A fit system may include one or more fit straps, which can include cables, fabric, or plastic components. The fit strap can be continuous or divided into multiple pieces. The fit system includes an adjustment mechanism. The adjustment mechanism is located in the center of the fit system at the back of the occipital bun of the wearer’s head. Engaging the adjustment mechanism, typically a rotatable dial, allows the wearer to selectively reduce or increase the circumference of the fit strap within the protective helmet, providing a more customized fit. The fit system is made of multiple pieces or parts of flexible or rigid material. Each section of the fit strap is connected to the adjustment mechanism at one end and to the helmet at a second end. The two second ends may be located behind the ears of the wearer. The fit system is configured so that engagement of the adjustment mechanism changes the size of the lateral offset between the two second ends. Because the adjustment happens at the occipital bun, any adjustments must be made by the wearer reaching a hand behind the wearer’ s head to turn the dial. This can be awkward and difficult while engaging in an activity. In some cases, the wearer must cease the activity and adjust the fit system before resuming the activity.

[0008] Helmets undergo a series of safety tests and are required to meet certain safety standards in order to be sold on the market. Impact tests generally measure how well a helmet manages energy absorption and redistribution around the wearer’s head. Roll-off tests determine how well a properly fitted helmet resists being pulled down toward or away from a wearer’s face. An elongation or retention test determines how well the chin strap resists stretching or breaking when a pulling force is applied to the helmet.

[0009] While a helmet may meet certain safety standards when the various straps are adjusted correctly, few people actually use their helmets in a correctly adjusted configuration. Moreover, adjustments to the chin strap are most often done when the helmet is removed from the wearer’s head, requiring trial and error to make the optimal adjustments. Even after several adjustment attempts, when the buckle of a chin strap is connected, at least one of the straps (e.g., in front of or in back of ears) may be loose, which may allow the helmet to become dislodged in the event of a crash. Furthermore, adjustment may be so cumbersome that some wearers may be unwilling to properly tighten the chin strap because the requisite level of tightness may be uncomfortable and, much of the time, the wearer may not be engaging in the most dangerous part of an activity requiring a tight chin strap. Some people may wear the helmet with unevenly adjusted chin straps and/or which are too loose, even when they are about to engage in the most dangerous part of the activity. In some cases, wearers may release the chin strap for comfort, such as while riding a ski lift or while resting in between biking intervals. Understandably, wearers sometimes forget to buckle their chin straps, which is dangerous and could lead to the helmet falling off their head. Improper fitting of conventional straps cause a significant number of head trauma injuries, and in some cases, death. Approximately 30% of all injury-related deaths are a result of traumatic brain injuries.

[0010] During use of the helmet, the tightness of the fit system may also need to be adjusted by the wearer. Placement of the adjustment mechanism at the back of the head may prevent or hinder wearers from adjusting the tightness of the fit system in real time. For example, an adjustment mechanism at the back of the head can be difficult to reach while riding a bike, meaning a wearer may not be able to readily and accurately adjust the fit of their helmet in real time without awkward body contortions. The wearer my simply opt to have a sub-optimally fitting helmet for reasons given above, with the attendant risk and dangers of head trauma injury or even death. [0011] Another problem is that, during use, chin straps, fit systems, and other webbing can become sweat-soaked and stretch or loosen. Correcting for stretching of the chin strap in real time is typically not possible as the helmet usually must be removed from the wearer’s head to make any adjustments to the chin strap. And while fit systems can theoretically be adjusted in real time by turning a knob at the back of the head, the awkward positioning of the knob may deter many or most people from properly readjusting the fit system. As such, the wearer my simply opt to have a sub-optimally fitting helmet for reasons given above, with the attendant risk and dangers of head trauma injury or even death.

[0012] In view of the foregoing, there is a long-felt but unsatisfied need for improved helmet retention systems, particularly chin strap and fit retention systems.

SUMMARY

[0013] Disclosed are helmets with adjustable chin strap and/or fit systems that solve some or all of the problems of the prior art. Specifically, disclosed are helmets including a helmet shell and an adjustable chin strap retention system, where the chin strap retention system includes a chin strap and actuator to adjust the length of the chin strap. Also disclosed are adjustable fit systems for use with a protective helmet, and helmets that include the fit system, with the fit system including an elongated fit strap continued to engage a wearer’s head and an actuator, wherein the actuator engages at least one end of the fit strap and permits a wearer to selectively increase or decrease the length of the fit strap to loosen or tighten the fit system. Also disclosed are combined chin strap and fit systems and helmets that includes such systems.

[0014] The chin strap and fit strap may include webbing and padding on at least a portion of the chin strap and fit strap. The helmet shell may include an inner component and an outer component. The chin strap and/or fit strap may cleanly and simply connect to the shell, with two opposing ends of the chin strap and/or fit strap being anchored, in some embodiments, to the inner and/or outer components of the shell at left and right side regions, respectively. In some embodiments, a helmet that includes an adjustable chin strap and adjustable fit system may include separate actuators to adjust each independently. Alternatively, they may be integrated together so that a single actuator can be used to tighten the integrated chin strap and fit strap simultaneously.

[0015] In some embodiments, the actuator(s) can be positioned at or near one or both side regions of the helmet shell and operably connected with the chin strap and/or fit strap such that actuating or otherwise manipulating the actuator can quickly and easily increase or decrease the length of the chin strap and/or fit strap in order to selectively loosen or tighten the chin strap and/or fit strap. In some embodiments, the actuator may releasably engage the shell to enable the chin strap and/or fit strap to releasably engage the helmet shell.

[0016] In some embodiments, the chin strap can be a single continuous strap from a first end to an opposite second end. In some embodiments, the chin strap can be reversible such that either of the opposing ends can connect to the inner and/or outer components of the shell at either a left or right ear area of the shell. In some embodiments, the fit strap can be a substantially single continuous piece of material extending between opposing first and second ends. Where both a chin strap and fit strap are included and equipped with separate actuators, each can be a separate single continuous piece of material. In some embodiments, the chin strap and fit strap may be integrated as a single unit comprising a single continuous piece of material that provides both the chin strap and the fit strap.

[0017] In some embodiments, when decreasing the length of the chin strap and/or fit strap, an extra length of chin strap and/or fit strap can be housed in or received internally by the helmet shell. For example, the helmet shell may include a channel, groove, and/or space in or between the inner and/or outer components of the shell to receive excess chin strap length and/or fit strap length when shortened. In some embodiments, the inner and/or outer component of the shell may include a groove to receive the chin strap and/or fit strap as it is being shortened and to guide the chin strap and/or fit strap, for example, away from the wearer’s head. In some embodiments, the chin strap and/or fit strap may be received into a space between the shell and the wearer’s head. In this way, the chin strap and/or fit strap may remain entirely contained within the shell or helmet system, with no ends of the chin strap /or fit strap extending out or being externally accessible. In some embodiments, the extra length of the chin strap and/or /or fit strap can be external to the helmet and not contained within the shell.

[0018] In some embodiments, the inner and outer components of the shell can be joined together to create a substantially uniform shell. In some embodiments, the inner and outer components of the shell are formed/manufactured together as one piece. In some embodiments, the inner and outer components of the shell are constructed from the same material. In some embodiments, the inner and outer components of the shell are two distinct, separate pieces joined together to create the shell. In some embodiments, the inner and outer components of the shell are constructed from different materials. For example, a flexible polystyrene or other polymeric inner component can be in-molded with an outer and harder shell component.

[0019] In some embodiments, a helmet and adjustable chin strap assembly comprises: a helmet shell configured to at least partially cover a wearer’s head, wherein the helmet shell includes: an outer component and an inner component; a front and a back; and a left side region and a right side region; and an adjustable chin strap retention system including: a chin strap having two opposing ends, a first end configured to attach to the left side region and a second end configured to attach to the right side region; and an actuator configured to attach to the left or right side region of the helmet shell and be operably connected to the first or second end of the chin strap so that actuating the actuator selectively increases or decreases a length of the chin strap relative to the left and right side regions of the helmet shell in order to selectively loosen or tighten the chin strap, respectively.

[0020] In some embodiments, a helmet and adjustable fit system assembly comprises: a helmet shell configured to at least partially cover a wearer’s head, wherein the helmet shell includes: an outer component and an inner component; a front and a back; and a left side region and a right side region; and an adjustable fit system including: a fit strap configured to engage a wearer’s head and having two opposing ends, a first end configured to attach to the left side region and a second end configured to attach to the right side region; and an actuator configured to attach to the left or right side region of the helmet shell and be operably connected to the fit strap so that actuating the actuator selectively increases or decreases a length of the fit strap relative to the wearer’s head in order to selectively loosen or tighten the fit strap, respectively.

[0021] In other embodiments, an adjustable fit system for use with a protective helmet comprises: a fit strap configured to engage a wearer’ s head and having two opposing ends, a first end configured to attach to a left side region of a helmet shell and a second end configured to attach to a right side region a helmet shell; and an actuator configured to attach to the left or right side region of a helmet shell and be operably connected to the fit strap so that actuating the actuator selectively increases or decreases a length of the fit strap relative to the wearer’s head in order to selectively loosen or tighten the fit strap, respectively.

[0022] In other embodiments, a combined adjustable chin strap and fit system with separate dedicated actuators for use with a protective helmet comprises: a chin strap having two opposing ends, a first end configured to attach to a left side region and a second end configured to attach to a right side region of a helmet shell; a chin strap actuator configured to attach to a side region of the helmet shell and be operably connected to the first or second end of the chin strap so that actuating the actuator selectively increases or decreases a length of the chin strap relative to the left and right side regions of the helmet shell in order to selectively loosen or tighten the chin strap, respectively; a fit strap configured to engage a wearer’ s head and having two opposing ends, a first end configured to attach to the left side region and a second end configured to attach to the right side region the helmet shell; and a fit actuator configured to attach to a side region of a helmet shell and be operably connected to the fit strap so that actuating the actuator selectively increases or decreases a length of the fit strap relative to the wearer’s head in order to selectively loosen or tighten the fit strap, respectively.

[0023] In other embodiments, an integrated adjustable chin strap and fit system with a single actuator for use with a protective helmet comprises: a chin strap portion having two opposing ends, a first end configured to attach to a left side region and a second end configured to attach to a right side region of a helmet shell; a fit strap portion configured to engage a wearer’s head and having two opposing ends, a first end configured to attach to the left side region of a helmet shell and a second end configured to attach to the right side region a helmet shell, wherein the first end or the second end of the chin strap portion is connected to the first end or the second end of the fit strap portion to form a continuous chin/fit strap; and an actuator configured to attach to a side region of a helmet shell and be operably connected to at least one of the chin strap portion or fit strap portion so that actuating the actuator selectively increases or decreases a length of the continuous chin/fit strap in order to selectively loosen or tighten the continuous chin/fit strap, respectively.

[0024] In yet other embodiments, a helmet may include a combined or integrated adjustable chin strap and fit system as discussed above.

[0025] In some embodiments, the one or more actuators may comprise at least one of a slider, detent, spring pump, ratchet system (e.g., pawl and ratchet), wheel, or other means for selectively increasing or decreasing the length of the chin strap. The one or more actuators can be releasably or non-releasably attached to a left and/or right side region of the helmet shell. Alternatively, the one or more actuators can be attached to a truss of a truss pair near a side region of the helmet shell, with first and second trusses being rigidly or rotatably connected to and extending downwardly from respective left- and right-side regions of the helmet shell.

[0026] In some embodiments, a chin strap can include first and second Y-shaped helmet attachment structures, each configured to attach to a respective left- or right-side region of the helmet shell and each comprising a first strap section configured to attach to the helmet shell forward of a wearer’s ear and a first strap section configured to attach to the helmet shell behind the wearer’s ear. The Y-shaped helmet attachment structures may comprise fabric or molded plastic.

[0027] In some embodiments, the chin strap may comprise a single continuous strap with no buckle or other attachment feature configured to be positioned adjacent to a wearer’s chin. The helmet shell may include a channel, groove, or space configured to house or receive a portion of the chin strap when shortened or lengthened by the actuator.

[0028] In some embodiments, the helmet and adjustable chin strap and/or fit strap may comprise a pinion gear connected to or that forms part of the chin strap and/or fit strap. The pinion gear can be positioned in or adj acent to the left or right side region of the helmet shell. The actuator can be a wheel configured to engage the pinion gear such that selectively rotating the actuator in a first direction shortens the chin strap and/or fit strap and rotating the actuator in an opposite direction lengthens the chin strap and/or fit strap to selectively tighten or loosen the chin strap and/or fit strap relative to the wearer’s chin and/or head.

[0029] In some embodiments, the helmet and adjustable chin strap and/or fit strap may include an anchor sleeve disposed in one of the left side region or the right side region and configured to receive an end of the chin strap and/or fit strap opposite an end of the chin strap and/or fit strap operably connected to the actuator. The helmet and adjustable chin strap and/or fit strap may further include a second anchor sleeve configured to receive the end of the chin strap and/or fit strap operably connected to the actuator, wherein the actuator passes through the second anchor sleeve to maintain communication with chin strap and/or fit strap.

[0030] In some embodiments, the actuator can be removably attached to the helmet shell such that removal of the actuator detaches an end of the chin strap and/or fit strap operably connected to the actuator from the helmet shell and facilitate installation and removal of the helmet shell to and from the wearer’s head. In addition or alternatively, an end of the chin strap and/or fit strap opposite to the end attached to the actuator can be removably attached to the helmet shell such that detaching that end of the chin strap and/or fit strap from the helmet shell facilitates installation and removal of the helmet shell to and from the wearer’s head.

[0031] In some embodiments, the actuator may include a lock configured to temporarily lock the actuator and prevent changes in the length of the chin strap and/or fit strap while locked.

[0032] This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an indication of the scope of the claimed subject matter.

BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Various objects, features, characteristics, and advantages of the invention will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings and the appended claims, all of which form a part of this specification. The various embodiments in the Drawings are not mutually exclusive such that features of any of the Drawings can be modified with features from any of the other Drawings to the extent compatible. In the Drawings, like reference numerals may be utilized to designate corresponding or similar parts in the various Figures, and the various elements depicted are not necessarily drawn to scale, wherein:

[0034] Figure 1 schematically illustrates an embodiment of a helmet and chin strap retention system of the present disclosure;

[0035] Figure 2 schematically illustrates another embodiment of a helmet and chin strap retention system of the present disclosure;

[0036] Figures 3A-3B schematically illustrate other embodiments of a helmet and chin strap retention system of the present disclosure;

[0037] Figure 4 schematically illustrates an exploded view of the helmet and chin strap retention system of Figure 1;

[0038] Figure 5 is a partially transparent view of the helmet and chin strap retention system of Figure 1;

[0039] Figures 6A-6B schematically illustrate other embodiments of a helmet and chin strap retention system including a truss pair;

[0040] Figure 7 is an exploded view of the helmet and chin strap retention system of Figure 6;

[0041] Figures 8A-8C schematically illustrate other embodiments of a helmet and chin strap retention system including Y-shaped helmet attachment structures, each including a rear tether or leash and a forward tether or leash;

[0042] Figures 9A-9E schematically illustrate examples of actuator or adjustment mechanisms for adjusting a chin strap of a helmet and chin strap retention system;

[0043] Figures 10A-10G schematically illustrate embodiments of a chin strap assembly that includes Y-shaped helmet attachment structures made from molded plastic.

[0044] Figure 11 schematically illustrates an embodiment of a helmet and adjustable fit system assembly and optional chin strap;

[0045] Figure 12 schematically illustrates an embodiment of an adjustable fit system with an actuator attached to a side of the shell of a protective helmet near a wearer’s ear;

[0046] Figure 13 schematically illustrates an embodiment of an adjustable fit system in which the actuator is a wheel engaging a pinion gear;

[0047] Figure 14 schematically illustrates another embodiment of an adjustable fit system where the actuator is a slide type actuator;

[0048] Figure 15 schematically illustrates another embodiment of an adjustable fit system with a buckle type actuator; [0049] Figure 16 schematically illustrates another embodiment of an adjustable fit system with an embedded actuator;

[0050] Figure 17A schematically illustrates an embodiment of a protective helmet incorporating an adjustable fit system;

[0051] Figure 17B schematically illustrates another embodiment of an adjustable fit system anchored to a protective helmet;

[0052] Figure 18A is side profile view that schematically illustrates an embodiment of an adjustable chin strap and fit system of the present disclosure;

[0053] Figure 18B is a front perspective view of the embodiment shown in Figure 1A;

[0054] Figure 18C is an isometric perspective view of the embodiment shown in Figure 1A;

[0055] Figure 19A schematically illustrates another embodiment of the adjustable chin strap and fit system, including a truss pair;

[0056] Figure 19B schematically illustrates another embodiment of the adjustable chin strap and fit system, including a truss pair and supporting housings;

[0057] Figure 20 schematically illustrates another embodiment of the adjustable chin strap and fit system of the present disclosure utilizing a continuous strap;

[0058] Figure 21A schematically illustrates another embodiment of the adjustable chin strap and fit system of the present disclosure, including a second adjustment knob;

[0059] Figure 2 IB schematically illustrates another embodiment of the adjustable chin strap and fit system of the present disclosure embedded in a set of housings, including a second adjustment knob;

[0060] Figures 22A-22D schematically illustrate other embodiments of an adjustable chin strap and fit system of the present disclosure incorporated into a bicycle helmet;

[0061] Figures 23A-23D schematically illustrate various embodiments and examples of an actuator or adjustment mechanism to adjust an adjustable chin strap and fit system of the present disclosure.

DETAILED DESCRIPTION

Introduction and General Background

[0062] Disclosed are helmets with adjustable chin strap and/or fit systems that solve some or all of the problems of the prior art. Specifically, disclosed are helmets including a helmet shell and chin strap retention system, where the retention system includes a chin strap and an actuator to adjust the length of the chin strap. Also disclosed are adjustable fit systems for use with a protective helmet, and helmets that include the fit system, with the fit system including an elongated fit strap continued to engage a wearer’s head and an actuator, wherein the actuator engages at least one end of the fit strap and permits a user to selectively increase or decrease the length of the fit strap to loosen or tighten the fit system. Also disclosed are combined chin strap and fit systems and helmets that includes such systems. The chin strap and/or fit strap cleanly and simply connect(s) to the helmet shell, with two opposing ends of the chin strap and/or fit strap being anchored, in some embodiments, to opposite sides of the helmet shell.

[0063] In some embodiments, the actuator is operably connected to the chin strap and/or fit strap, such that actuating or otherwise manipulating the actuator can quickly and easily increase or decrease the length of the chin strap and/or fit strap in real time, while the wearer is riding a bike, skiing, or engaging in other sporting events or activities, to achieve optimal comfort, tightness, and fit. In some embodiments, the actuator may releasably engage the helmet shell to enable the chin strap and/or fit strap to releasably engage the shell to facilitate installation and removable of the helmet shell from the wearer’s head. In other embodiments, an end of the chin strap and/or fit strap opposite to the actuator may releasably engage the helmet shell. In some embodiments, the chin strap and/or fit strap can be a single, continuous strap extending between opposing first and second ends. In some embodiments, when decreasing the length of (and, thus tightening) the chin strap and/or fit strap, an extra length of the chin strap and/or fit strap can be received or housed internally within the helmet shell.

[0064] In some embodiments, an inside surface of the outer component of the shell can include a groove configured to receive a portion of the chin strap and/or fit strap as it is being shortened, and to guide the portion of the chin strap and/or fit strap, for example, away from the wearer’s head. In some embodiments, an outside surface of the inner component of the shell can include a groove to receive the portion of the chin strap and/or fit strap as it is being shortened and to guide the chin strap and/or fit strap, for example, away from the wearer’s head. In some embodiments, the chin strap and/or fit strap can be received into a space between the inner and outer components. In some embodiments, the chin strap and/or fit strap can be received into a space between the shell and the wearer’s head. In this way, the chin strap and/or fit strap may remain entirely contained within the shell or helmet system, with no ends of the chin strap and/or fit strap extending external to the helmet or being externally accessible. In some embodiments, an extra length of the chin strap and/or fit strap can be external to the helmet and not contained within the shell. [0065] In some embodiments, both ends of the chin strap and/or fit strap may be removably or non-removably connected to the shell. In some embodiments, both ends of the chin strap and/or fit strap can be removably or non-removably anchored between the inner and outer components of the shell. In some embodiments, both ends of the chin strap and/or fit strap can be removably or non-removably anchored to the inner component. In some embodiments, both ends of the chin strap and/or fit strap can be removably or non- removably anchored to the outer component of the shell. In some embodiments, the chin strap and/or fit strap can be one continuous strap extending between left and right side regions of the helmet shell and being adjustable in length via the actuator without any portion being detached. In another embodiment, an end of the chin strap and/or fit strap may comprise prongs, barbs, or similar mounting hardware to enable selective insertion and retention of the end of the chin strap and/or fit strap in the helmet shell. This insertion and retention may be permanent in nature or may be reversible to allow for the quick detachment of the chin strap and/or fit strap from the shell of the helmet.

[0066] To install or remove a helmet shell with an adjustable chin strap, the wearer can simply lengthen the chin strap until the helmet shell can fit over the wearer’s head and chin unhindered by the chin strap. After installing the helmet with the loosened strap, the wearer can then shorten (tighten) the chin strap using the actuator to achieve a comfortable and sufficiently tight fit. Similarly, to install or remove a helmet shell with an adjustable fit system, the wearer can simply lengthen the fit strap until the helmet shell can fit over the wearer’s head unhindered by the fit strap. After installing the helmet with the loosened strap, the wearer can then shorten (tighten) the fit strap using the actuator to achieve a comfortable and sufficiently tight fit.

[0067] In some embodiments, the actuator may be positioned on a side region of the helmet shell. For example, the actuator may be accessed at approximately a left side region or ear area or a right side region or ear area. In some embodiments, the entirety of the actuator may be accessed at or near a left or side region or ear area of the helmet shell. In some embodiments, a portion of the actuator may be accessible at a side of the helmet and a remaining portion of the actuator may be concealed by or embedded in the helmet shell. Where two actuators are includes to independently adjust the chin strap and fit strap, they may advantageously be located on opposite sides of the helmet shell. Alternatively, they can be located on the same side of the helmet shell. They can be spaced apart, or they can be integrated into a single actuator with two different wheels (e.g., stacked) that can be rotated independently to independently adjust the lengths of the chin strap and fit strap, respectively.

[0068] In some embodiments, only one end of the chin strap and/or fit strap may be non- removably anchored to the shell. For example, the anchored end may be anchored between the inner and outer components of the shell. Alternatively, the anchored end may be anchored to one of the inner or outer components of the shell. The other end can be engageable with the shell (the inner component, the outer component, or both) and can be removed from the shell to have a free hanging chin strap end and/or fit strap (still anchored by the other end). In some embodiments, the detachable end of the chin strap and/or fit strap may removably attach to the shell via the actuator. In other embodiments the detachable end of the chin strap and/or fit strap may removably engage with the shell via a buckle, snap, or other connection feature, with the non-removeable end being attached to the helmet shell via the actuator.

[0069] In some embodiments, the actuator may removably engage with the shell via a buckle, snap, or bar-type engagement. The buckle, snap, or bar-type engagement feature may be attached to the inner component, the outer component, or both, or it may be attached to a region of the chin strap and/or fit strap at or near a left or right side region of the helmet shell. The actuator can be in communication with an end of the chin strap and/or fit strap to selectively increase or decrease the length of the chin strap and/or fit strap. When the actuator and free/removable end of the chin strap and/or fit strap are disengaged from the shell, the chin strap and/or fit strap may retain the length previously set by adjusting the actuator. Beneficially, a wearer may quickly detach the actuator and chin strap and/or fit strap to remove the helmet. The wearer may similarly quickly attach the actuator and chin strap and/or fit strap to the helmet without having to adjust the length or fit of the chin strap and/or fit strap. Beneficially, this means that wearers will more likely retain a proper fitting helmet, reducing traumatic brain and head injuries.

[0070] Embodiments of the present disclosure provide a number of benefits, technical solutions, and advantages over prior art helmets and chin strap and/or fit systems. For example, the disclosed helmets and adjustable chin strap and/or fit system enable more accurate and easy adjustment of the chin strap and/or fit strap and a more accurate or proper fit for the wearer. Adjustments can be made quickly and easily using one hand and without having to remove the helmet. This permits real time adjustments while engaging in an activity. Providing an accurate and proper fit beneficially leads to a decrease in both head trauma injuries and the severity of any head trauma injuries. For example, a 66% decrease of serious head injuries may be realized by a proper helmet fit.

[0071] Also beneficially, a more accurate and proper fit provides a more comfortable fit, meaning the user is more likely to wear the helmet during dangerous activities or during more dangerous parts of some activities. Further, the disclosed helmet and chin strap and/or fit strap retention systems are applicable across a wide variety of helmet types, such as construction, bicycle, ski and snowboard helmets, and others. Still further, the disclosed chin strap and/or fit strap retention systems can be contained inside and about the helmet (except for the portion that goes around the chin and/or head), beneficially providing a cleaner and more aerodynamic profile. Additionally, there are no external parts to get caught or dragged while wearing and using the helmet. The disclosed adjustable chin strap and/or fit systems can be manufacture separately and then attached to a variety of different types of protective helmets.

[0072] Embodiments of the present disclosure also, beneficially, simplify and streamline the chin strap chin strap and/or fit strap retention systems in comparison to the prior art. For example, embodiments of the present disclosure eliminate a buckle or actuator under the chin to secure the helmet to a wearer’s head, which can be cumbersome and uncomfortable. The omission of the chin buckle under the chin significantly increases comfort and safety. By increasing comfort and safety by eliminating the under-chin buckle, the helmet and chin strap assemblies facilitate a tighter and more optimally secure fit of the helmet to the wearer’s head. This is because there is no buckle or actuator to cut or dig into the chin of a wearer, meaning they can wear the helmet with a tighter yet still comfortable fit.

[0073] Disclosed helmet systems also enable real-time adjustment of the chin strap and/or fit strap. Specifically, a wearer of the disclosed helmet and adjustable chin strap and/or fit strap assembly may adjust the chin strap and/or fit strap without having to remove the helmet. With improved placement of the actuator or adjustment mechanism, a wearer of the disclosed helmet system may adjust the chin strap and/or fit strap using one hand. Realtime adjustment and capability to adjust the chin strap and/or fit strap with one hand means users can wear the better-fitting helmet system throughout an entire activity and through all difficulty levels of activity.

[0074] Reference will now be made to the Figures, which illustrate embodiments of helmet and adjustable chin strap and/or fit strap assemblies that facilitate adjustment of the length and fit of the chin strap and/or fit strap via a readily accessible actuator on a side region of the helmet that can advantageously be manipulated using one hand.

[0075] It shall be understood that the Figures are illustrative only and not limiting. In addition, features shown in one Figure can be used in combination with features from one or more other Figures without limitation as long as such combination is operable and useful to achieve the purposes disclosed herein. Thus, any feature shown in one Figure can provide enabling disclosure when combined with any feature from one or more other Figures. For example, embodiments and features of the adjustable chin straps illustrated in Figures 1-10 and embodiments and features of the adjustable fit systems illustrated in Figures 11-17 can be incorporated into the combined adjustable chin strap and fit system illustrated in Figures 18-23 without limitation as long as the modification yields an operable device. Similarly, embodiments and features of helmets and actuators in any of the chin strap embodiments, fit system embodiments, and combined chin strap and fit system can be incorporated into any other embodiments without limitation as long as the modification yields an operable device.

Adjustable Chin Strap Retention Systems and Helmets Incorporating Such Systems [0076] Figure 1 illustrates an embodiment of a helmet and adjustable chin strap assembly 100 of the present disclosure. The helmet and adjustable chin strap assembly 100 includes a helmet shell 102 and a chin strap retention system 110, which includes a chin strap 112 and an actuator 114. The helmet shell 102 may include an outer component 104 and an inner component 106. In some embodiments, the outer component 104 can be a relatively hard, rigid layer and the inner component 106 can be a softer liner attached or joined to the outer component 104. In some embodiments, the inner component 106 may include a harness or suspension system configured to comfortably engage the wearer’s head. In some embodiments, the inner component 106 may include foam, fabric, and/or padding. In some embodiments, the helmet shell 102 may further include a lining (not illustrated) that attaches and provides additional padding to the inner component 106. In some embodiments, the inner component 106 can be directly attached or bound to the outer component 104, such as by in-molding, in order for the inner and outer shell components 104, 106 to form a composite system that reinforces each other. In some embodiments, there can be a gap or space between the inner and outer components 104, 106, such as to receive a portion of the chin strap 112. [0077] In some embodiments, both the inner and outer components 104, 106 are molded and thermoformed into a desired shape. In some embodiments, the inner and outer components 104, 106 can be in-molded together as a composite piece. In other embodiments, the inner and outer components 104, 106 can be formed separately and then joined together to create the shell 102. For example, the outer component 104 can be molded and thermoformed into a desired shape, and the inner component 106 can then be in-molded within the outer component or separately molded and then attached to the outer component 104. In some embodiments, the outer component 104 is solid and continuous (such as with a construction hard hat). In some embodiments, the outer component 104 includes vents or gaps (such as with a bicycle or ski helmet).

[0078] The chin strap retention system 110 includes a chin strap 112 and an actuator 114. As illustrated, the actuator 114 can be side-accessible and easy to reach and manipulate, thereby enabling ready adjustment of the length of the chin strap 112. The actuator 114 may be a slider, detent, spring pump, ratchet system, wheel, or other means for selectively increasing or decreasing the length of the chin strap 112. In some embodiments, both ends of the chin strap 112 can be non-removably anchored to or between the inner and outer components 104, 106 of the shell. That is, the chin strap 112 may only be adjustable in length via the actuator 114. To install or remove the helmet 100, a wearer can simply lengthen the chin strap 112 until the helmet shell 102 can fit over and around the wearer’s head and chin. After initially installing the helmet shell 102 over the wearer’s head, the wearer can shorten (tighten) the chin strap 112 via the actuator 114 to achieve a comfortable and properly tight fit for safety. The actuator 114 may be accessed on a side region of the helmet shell 102 - either at approximately a left ear area or approximately a right ear area (as shown). In some embodiments, the left and/or right ear areas encompass a left and/or right ear perimeter of the shell 102 as well as the ear of the user. Figures 6A- 6B and 8A-8C discussed below, illustrate placement of the actuator either over or behind the ear area.

[0079] In some embodiments, the chin strap 112 may connect to the helmet shell 102 between the inner and outer components 104, 106 of the shell. In some embodiments, the chin strap 112 can be configured to pivot about a hinge point located between the inner and outer components 104, 106 of the shell where the chin strap 112 connects. In some embodiments, the chin strap 112 may connect to the outer component 104 of the shell and be configured to pivot about a hinge point where the chin strap 112 connects to the outer component 104. For example, in some embodiments, the chin strap 112 may connect to an inner surface of the outer component 104. In some embodiments, the chin strap 112 may connect to the inner component 106 of the shell 102 and be configured to pivot about a hinge point where the chin strap 112 connects to the inner component 106. For example, the chin strap 112 may connect to an outer surface of the inner component 106.

[0080] In some embodiments, the chin strap 112 may be constructed from a cable, a strap, webbing, and/or woven materials (e.g. cotton, polyester, or a blend). The chin strap 112 may be a single, continuous strap with no buckle or actuator under the wearer’s chin. In some embodiments, at least a portion of the chin strap 112 may be substantially flat, allowing for an ergonomic fit to the underside of a wearer’s chin. In another embodiment, at least a portion of the chin strap 112 may be made of silicon, rubber, or plastic material. This material can allow for the chin strap 112 to maintain a more rigid shape or allow for the chin strap 112 to maintain a more secure mechanical communication with an actuator. Some materials may have anti-microbial properties, which provide the wearer the benefit of simply wiping down the chin strap 112 after use without the need to rigorously clean the chin strap 112 to avoid a stagnation of sweat or other unwanted substances.

[0081] Figure 2 illustrates another embodiment of a helmet and adjustable chin strap assembly 200. Similar to the embodiment in Figure 1, the helmet and adjustable chin strap assembly 200 includes a helmet shell 202 and a chin strap retention system 210, which includes a chin strap 212 and an actuator 214. A portion of the right ear area (or right side region) has been cut-away to illustrate additional components of the chin strap retention system 210. In addition to the chin strap 212 and actuator 214, the chin strap retention system 210 includes a pinion gear 218 attached at or near an end of the chin strap 212. In some embodiments, the pinion gear 218 can be positioned inside the helmet shell 202, such as between the inner and outer components 204, 206 of the shell 202. In some embodiments, the pinion gear 218 may be received by a channel or groove in the inner and/or outer components 204, 206. When the inner and outer components 204, 206 are a substantially uniform piece, the pinion gear 218 may be received by a channel in a space or gap between the inner and outer components 204, 206. In some embodiments, the pinion gear 218 can be received within either the inner or outer component 204, 206 of the shell. In alternative embodiments, the pinion gear 218 can be positioned adjacent to the helmet shell 202.

[0082] As further illustrated, the actuator 214 is configured to engage the pinion gear 218, which forms part of or is connected to the chin strap 212. In some embodiments, the pinion gear 218 can be an extension of the chin strap 212, in which an end portion of the chin strap 212 forms the pinion gear 218. In some embodiments, the pinion gear 218 can be a separate piece attached or connected to a terminal end of the chin strap 212. Actuating or otherwise manipulating the actuator 214 engages the pinion gear 218 to selectively increase or decrease the length of the chin strap 212 in order to selectively loosen or tighten the chin strap 212 relative to the left and right side regions of the helmet shell 302.

[0083] Figures 3 A and 3B illustrate another embodiment of a helmet and adjustable chin strap assembly 300 of the present disclosure. Similar to the embodiment in Figures 1 and 2, the helmet and adjustable chin strap assembly 300 includes a helmet shell 302 and a chin strap retention system 310, which includes a chin strap 312 and an actuator 314. A portion of the right ear area has been cut-away to illustrate additional components of the chin strap retention system 310. In addition to the chin strap 312 and actuator 314, 314', the chin strap retention system 310 includes teeth or ridges 318 (Figure 3 A) or fabric 318' (Figure 3B). As illustrated in Figure 3 A, the actuator 314 can be a buckle that can be selectively opened or closed to engage one or more of the teeth or ridges 318 to lock the chin strap 312 at a selected length. As alternatively illustrated in Figure 3B, the actuator 314' can be a buckle that can be selectively opened or closed to engage a selected region of the fabric 318' to lock the chin strap 312 at a selected length.

[0084] In some embodiments, the teeth or ridges 318 or fabric 318' can be receivble between the inner and outer components 304, 306 of the shell 302. In some embodiments, the teeth or ridges 318 or fabric 318' can be positioned adjacent to the helmet shell 302. In some embodiments, the teeth or ridges 318 or fabric 318' can be received within either the inner or outer components 304, 306 of the helmet shell 302.

[0085] As illustrated, the buckle 314 may engage the teeth or ridges 318 or fabric 318', which are connected to, or form an extension of, the chin strap 312. In some embodiments, the teeth or ridges 318 or fabric 318' can be an extension of an end portion of the chin strap 312. In some embodiments, the teeth or ridges 318 or fabric 318' can be a separate piece attached or connected to a terminal end of the chin strap 312. The buckle 314, 314' can be selectively opened or closed to release from or engage with teeth or ridges 318 or fabric 318' to adjust the length of the chin strap 312 and lock it at a selected length and tightness. [0086] Figure 4 is an exploded view of the helmet and adjustable chin strap assembly 100 of Figure 1. The helmet and adjustable chin strap assembly 100 includes a helmet shell 102 and a chin strap retention system 110, which includes a chin strap 112 and an actuator 114. The helmet shell 102 includes inner and outer components 104, 106. As illustrated, the actuator 114 is side-accessible, easy to reach and turn, enabling easy adjustment by the wearer to loosen or tighten the chin strap 112 in real time. A wearer can easily access and manipulate the actuator 114 without having to remove the helmet and without having to turn or contort their body to do so while engaging in activities.

[0087] The chin strap retention system 110 may include at least one anchor sleeve 116. The chin strap retention system 110 illustrated in Figure 4 includes two anchor sleeves 116. The anchor sleeves 116 are configured to receive the opposing ends of the chin strap 112 at the left ear area, the right ear area, or both. The anchor sleeves 116 are configured to provide a space or channel for the opposing ends of the chin strap 112 of the retention system 110 to be hidden and slide within an interior of the helmet shell 102. The anchor sleeves 116 can be configured to anchor the opposing ends of the chin strap 112 to the helmet shell 102. For example, the anchor sleeves 116 may be simple slots or channels that engage the opposing ends of the chin strap 112. The slots or channels may be integral to the inner and/or outer component 104, 106. The anchor sleeves 116 may be one-way push-to-connect type sleeves, where an end of the chin strap 112 is inserted into the anchor sleeve 116, engaged with the anchor sleeve 116, and cannot be pulled out of the anchor sleeve. The anchor sleeves 116 may be a detent-type slot, where a pin on one end of the chin strap 112 engages with a hole in the anchor sleeve 116. To remove the end of the chin strap 112, the wearer would simply push the pin through the hole and pull on the chin strap 112 to remove the end of the chin strap 112. In some embodiments, the anchor sleeves 116 may be simple channels defined by the inner and outer components 104, 106 of the helmet shell 102 rather than being additional and/or discrete pieces.

[0088] The anchor sleeves 116 can be configured to enable the actuator 114 to remain in communication with the chin strap 112 at either the left or right ear area. The anchor sleeves 116 may be in-molded to the shell 102 of the helmet 100 or may be removable, separate pieces. In some embodiments, the anchor sleeves 116 may be formed of a hard and rigid material, such as plastic or metal, to prevent the deformation of the anchor sleeve during use. Additionally, and/or alternatively, the anchor sleeves 116 may be slots, channels, or grooves defined by either the inner or outer components 104, 106, or both. Beneficially, incorporating the anchor sleeves 116 into the shell 102 of the helmet 100, or into either the inner or outer components 104, 106 of the shell, effectively hides them from view and simplifies the overall look of the helmet 100. Further, positioning the anchor sleeves 116 (or the defined grooves) into the shell 102 of the helmet 100 leaves the inner surface of the helmet 100 clean and smooth, adding to the comfort level of the helmet 100. [0089] The chin strap 112 can be continuous and substantially U-shaped. As illustrated, the chin strap 112 has a consistent outer diameter, though the chin strap 112 may have a varying outer diameter. For example, the chin strap 112 may narrow near a middle portion of the chin strap 112 to increase a comfort level for the wearer of the helmet 100. Similarly, narrowing the chin strap 112 near the middle portion may enable padding to be attached to the middle portion of the chin strap 112 to increase a comfort level for the wearer of the helmet 100. In some embodiments, the chin strap 112 may be constructed from or include webbing and/or another woven material. The chin strap 112 may also allow for padding to be selectively added or remove on at least a portion of its length.

[0090] In some embodiments, the chin strap 112 may be configured to pivot at an anchor or hinge point where the chin strap 112 connects to or is anchored to the helmet shell 102. For example, the anchor sleeves 116 may be configured to pivot where they are positioned (e.g., between the inner and outer components 104, 106 of the helmet shell 102). In some embodiments, the anchor sleeves 116 may be configured to allow the chin strap 112 to pivot relative to the helmet shell 102.

[0091] Figure 5 illustrates a partially transparent view of the helmet and adjustable chin strap assembly 100 of Figure 1. As illustrated, the anchor sleeves 116 are in-molded inside both the right and left ear areas of the shell 102. The anchor sleeves 116 may be in-molded between the inner and outer components 104, 106 of the shell 102. In some embodiments, the anchor sleeves 116 may be formed only in the inner component 106 or only in the outer component 104. In some embodiments, the anchor sleeves 116 can be channels (rather than additional discrete pieces) defined by the inner and outer components 104, 106, such that the channels are configured to receive the opposing ends of the chin strap 112. The chin strap 112 may engage with the anchor sleeves 116 at the left and/or right ear areas.

[0092] As illustrated, the actuator 114 can be a wheel that is in communication with and operably connected to the chin strap 112. Rotating the wheel one direction or the other can selectively increase or decrease the length of the chin strap 112, enabling a wearer to fit the helmet 100 over and around his or her head and selectively loosen or tighten the chin strap 112 to achieve a proper, comfortable, and safe fit. Further adjustments can be made by the wearer in real time to loosen or tighten the chin strap as circumstances may permit or dictate. In some embodiments, the actuator 114 can extend through the anchor sleeve 116 or channel to be in communication with the chin strap 112. In some embodiments, the actuator 114 can be in communication with the chin strap 112 and located at an area just below the anchor sleeve 116. [0093] Figures 6A-6B and 7 illustrate another embodiment of a helmet and adjustable chin strap assembly 600, which includes a truss pair 620 and an outline of the area approximately encompassed by the left and/or right ear areas 630. Figure 7 is an exploded view of the helmet and adjustable chin strap assembly 600 and truss pair 620 shown in Figures 6A-6B. Figure 6A shows the truss pair 620 attached and/or anchored to the helmet shell 602 at an upper portion of the left and right ear areas 630, respectively. Figure 6B illustrates the truss pair 620 attached and/or anchored to the shell 602 at lower side portions of the left and right ear areas 630, respectively.

[0094] As illustrated, the helmet and adjustable chin strap assembly 600 includes a helmet shell 602 (with inner and outer components 604, 606) and a chin strap retention system 610, including a truss pair 620. The truss pair 620 may extend downward and away from the helmet shell 602 at the left and right ear areas 630. The left and right ear areas 630 may encompass left and right ear perimeter of the helmet shell 602, respectively, as well as at least a portion of the truss pair 620. The space the truss pair 620 resides in is delineated by the dotted box in Figures 6A and 6B. In some embodiments, the left and right ear areas 630 encompass substantially all of the truss pair 620. The truss pair 620 may be made of the same material as the shell 602 or may be made from a more flexible material. In some embodiments, the truss pair 620 may be in-molded to the left and right ear areas 630, between the inner and outer surfaces 604, 606 of the shell. In some embodiments, the truss pair 620 may be attached to the left and/or right ear areas 630 after the shell has been constructed. In some embodiments, the truss pair 620 may be pivotably attached to the helmet shell 602.

[0095] The truss pair 620 may include an anchor fitting 616 configured to receive a portion of the chin strap 612. The anchor fitting 616 may be similar to or substantially the same as anchor sleeves 116 (see Figures 4-5). The chin strap 612 may be inserted through the anchor fitting 616 and truss pair 620 and into the shell 602. In some embodiments, the anchor fitting 616 of each truss of the truss pair 620 may retain the chin strap 612 in place and prevent it from rotating and/or sliding around during use of the helmet 600. In some embodiments, the anchor fitting 616 of each truss of the truss pair 620 may provide a hinge point about which the chin strap 612 may pivot or rotate. In some embodiments, the anchor fitting 616 can be slidable along the chin strap 612 to aid in adjusting a comfort and fit of the helmet 600. In some embodiments, the opposing ends of the chin strap 612 may engage with additional anchor sleeves (not shown) positioned between the inner and outer components 604, 606 of the shell 602. As illustrated in Figure 4, one or both of the additional anchor sleeves may have a curvature, following the curvature of the shell. In another embodiment, the chin strap 612 may be retained by the truss pair 620 by means of loops or clips along the length of each truss. The chin strap 612 would then be selectively fed through the loops or engaged by the clips by the wearer allowing for easy replacement of the chin strap 612.

[0096] Though not illustrated, in some embodiments, the actuator 614 may be attached to a portion of the truss pair 620 at or near a left or right side portion rather than to the helmet shell 602 itself. In this configuration, the actuator 614 would still be in communication with the chin strap 612 at or near a left or right side portion of the helmet shell 602 and enable the wearer to easily increase and/or decrease the length of the chin strap 612 in real time.

[0097] The truss pair 620 beneficially provides support for the chin strap 612, increasing the safety of the helmet 600 and comfort for the wearer. Beneficially, the truss pair 620 may obviate the need for rear straps or webbing behind the ear, which are typically used in conventional helmets. In some embodiments, the chin strap retention system 610 may further include a lock. The lock may be engaged to lock the actuator 614 to prevent a change in the length of the chin strap 612. Such lock may beneficially maintain the predetermined length of the chin strap 612 during high intensity activities, such as alpine skiing/ snowboarding or rock climbing.

[0098] Figures 8A-8B illustrate another embodiment of a helmet and adjustable chin strap assembly 800 having a rear tether or leash 820 as part of the chin strap retention system 810. As illustrated, the rear tether or leash 820 can be constructed from the same material as the chin strap 812. The rear tether or leash 820 may include rear arms that engage with the chin strap 812 at an anchor fitting 816. The rear arms of the rear tether or leash 820 are connected to the helmet shell 802, such as to and/or between the inner and outer components 804, 806 of the shell 802. The rear arms may be configured to fit or hang around behind the wearer’s ear, while the chin strap 812 may be configured to fit or hang around in front of the wearer’s ear. In this way, the rear arms stabilize the chin strap 812 while a wearer is using the helmet and adjustable chin strap assembly 800.

[0099] Additionally, the rear tether or leash 820 enables proper geometric placement of the chin strap 812 and anchor fittings 816 on the wearer’s head. Proper geometric placement of the chin strap 812 contributes to the safety of the helmet 800, particularly in “roll off’ situations, where the helmet 800 is being pulled toward a front or back of the wearer’s head. The chin strap 812 may be held at an angle (by the rear tether or leash 820) against a wearer’s jaw in such a way that the chin strap 812 cannot be slid off the wearer’s jaw or head.

[0100] The anchor fitting 816 may be slidable along the chin strap 812. This may contribute to a more comfortable fit of the chin strap 812 and the helmet shell 802. In some embodiments, the anchor fittings 816 may include a lock, latch, or clamping means that will maintain a position of the anchor fittings 816 along the chin strap 812.

[0101] In some embodiments, the rear tether or leash 820 can be semi-rigid. In some embodiments, the rear tether or leash 820 can be a continuous extension of the chin strap 812, such as the embodiment illustrated in Figure 8C. In Figure 8C, there are no cables, webbing, straps, etc. in front of the ear, which may enhance the overall comfort of the helmet 800. In another embodiment (not shown, but similar in function to the embodiment illustrated in Figures 10A-10G), the rear tether may be of a molded material that extends into a molded “Y” or “V” junction that would encircle the wearer’s ear connecting at two locations along the helmet and adjustable chin strap assembly 800, one in front of and one behind the wearer’s ear. The foremost structure of the “Y” or “V” would contain an anchor fitting 816 or similar channel, loops, or clips to allow for its retention of the chin strap 812. Beneficially, the molded “Y” or “V” structure would keep the structure away from the ears of the wearer, which may enhance the overall comfort of the helmet 800.

[0102] Figures 9A-9E illustrate various embodiments and examples of an actuator or adjustment mechanism to adjust a chin strap of a helmet and adjustable chin strap assembly, such as the helmet shell and chin strap retentions systems described herein. Figure 9A illustrates a slide-type actuator 900 which includes a toggle switch 902 and a ribbon 904. The ribbon 904 is configured to extend into a shell (e.g., shell 102, 202, 302, 602, 802) and engage with the toggle switch 902. In some embodiments, the ribbon 904 can be attached to an end of the chin strap 912. In some embodiments, the ribbon 904 can be an extension of an end of the chin strap 912. A wearer may move the toggle switch 902 ‘up’ one or more times to selectively and progressively tighten the chin strap 912 and may move the switch ‘down’ one or more times to selectively and progressively loosen the chin strap 912.

[0103] Figure 9B illustrates a buckle-type actuator 910, similar to the actuator 314 in Figure 3A. The buckle-type actuator 910 includes a buckle 914 and a buckle catch 916, similar to the micro buckles of a ski boot. The buckle 914 engages the buckle catch 916 to either tighten or loosen the chin strap 912. As shown in Figure 9B, the buckle 914 may be partially embedded in a helmet shell (e.g., helmet shell 102, 202, 302, 602, or 802). [0104] Figures 9C-9E illustrate various components and placements of an actuator 920, similar to the actuator 214 in Figure 2. As illustrated in Figures 9D and 9E, the actuator 920 can be a wheel that engages a pinion gear (see also Figure 2). The actuator wheel 920 may be attached to the shell on an external surface (e.g., on an external surface of the outer component). Alternatively, the actuator wheel 920 may be at least partially embedded in the helmet shell, such as sandwiched between inner and outer components. If the actuator wheel 920 is embedded in the shell, a portion of the wheel will be accessible to the wearer. [0105] Figures 10A-10G illustrate embodiments of a chin strap retention system 1010 having Y-shaped helmet shell attachment structures. As illustrated in Figure 10A, the chin strap retention system 1010 includes a chin strap 1012 and an actuator 1014 that functions to selectively shorten or lengthen the chin strap 1012 by rotating the actuator 1014 one direction or the other. The chin strap retention system 1010 includes first and second Y- shaped connectors 1016a, 1016b that are designed to attach the chin strap 1012 to right and left side regions or ear areas, respectively, of a protective helmet shell (not shown). One will appreciate that the foregoing structures of the chin strap retention system 1010 can be reversed in order for the actuator to be positioned on the opposite side of the helmet shell.

[0106] As illustrated in Figure 10A, the first Y-shaped connector 1016a can be a separately formed piece that is slidably connected to the chin strap 1012 by means of a retention loop 1018. The first Y-shaped connector 1016a includes a rear tether 1020a having a rear end 1022a designed to connect to a helmet at a location rearward of the wearer’s right ear and a front tether 1024a having a front end 1026a (see Figure 10F)) designed to connect to a helmet at a location forward of the wearer’s right ear. The second Y-shaped connector 1016b can be integrally formed with the chin strap 1012 and includes a rear tether 1020b having a rear end 1022b designed to connect to a helmet at a location rearward of the wearer’s left ear and a front tether 1024b having a front end 1026b designed to connect to the helmet at a location forward of the wearer’s left ear. As illustrated, the rear ends 1022a, 1022b and front ends 1026a, 1026b can have hollow cylindrical structures configured to receive therethrough corresponding attachment bars or rods (not shown) rigidly or rotatably connected to the helmet shell. In this way, the first and second Y-shaped connectors 1016a, 1016b can pivot or rotate relative to the helmet shell for improved fit and comfort to the wearer, particularly where the Y-shaped connectors 1016a, 1016b are rigid or semi-rigid. [0107] As illustrated in Figure 10A, the actuator 1014 can be operably connected to a free end 1028 of the chin strap 1012 adjacent to the front tether 1024a of the first Y-shaped connector 1016a by means of a flexible cable or wire 1030. As illustrated, rotation of the actuator 1014 counterclockwise will wind up the cable or wire 1030 to draw the free end 1028 of the chin strap 1012 toward the helmet, thereby shortening the chin strap 1012 and creating a tighter fit under the wearer’s chin. Conversely, rotation of the actuator 1014 clockwise will unwind the cable or wire 1030 and permit the free end 1028 of the chin strap 1012 to move away from the helmet, thereby lengthening the chin strap 1012 and creating a looser fit under the wearer’s chin and/or permitting the wearer to remove the helmet by pulling the chin strap forward in front of the wearer’ s chin and upward in front of the face. The actuator 1014 can be retained in a desired rotational position to fix the length of the chin strap 1012 by a sufficiently tight friction fit and/or by a spring-loaded ratchet mechanism (not shown).

[0108] It will be appreciated that the actuator 1014 and the cable or wire 1030 can be reconfigured so that rotating the actuator 1014 clockwise will tighten the chin strap 1012 and rotating the actuator 1014 counterclockwise will loosen the chin strap 1012. Other ratchet mechanisms are possible, such as where repeatedly rotating the actuator 1014 back and forth winds up the cable or wire 1030 to tighten the chin strap 1012, and depressing or retracting the actuator 1014 releases the cable or wire 1030 and permits lengthening of the chin strap 1012.

[0109] Figures 10B and 10C illustrate an embodiment in which the free end 1028 of the chin strap 1012 can be selectively attached to and released from the helmet by removing the actuator 1014 from a hole 1032 formed in a left portion 1034a of the helmet. Figure 10B shows the actuator 1014 positioned in the hole 1032 and operable to selectively shorten or length the chin strap 1012 as discussed above. Figure 10C shows the actuator 1014 removed from the hole 1032, which permits detachment of the free end 1028 of the chin strap 1012 from the helmet shell. In some embodiments, the retention loop 1018 can be released from the front tether 1024a of the first Y-shaped connector 1016a in order to decouple the free end 1028 of the chin strap 1012 from the first Y-shaped connector 1016a. This permits the wearer to more easily install and remove the helmet without having to pull the chin strap 1012 in front of the wearer’s face. In this embodiment, the second Y- shaped connector 1016b can remain non-removably attached the helmet.

[0110] Figures 10D and 10E illustrate an embodiment in which the chin strap assembly 1010 includes first and second Y-shaped connectors 1016a, 1016b that are both separately formed from and attached to the chin strap 1012. As illustrated, the first Y-shaped connector 1016a can be connected to the chin strap 1012 by the retention loop 1018 as in the embodiment shown in Figures 10 A- 10C, with the actuator 1014 functioning in the same way, except that the actuator 1014 may or may not be removable from the helmet to release a first free end 1018a of the chin strap 1012 from the helmet. That is because the embodiment shown in Figures 10D and 10E includes a release mechanism 1040 that permits an opposite, second free end 1018b of the chin strap 1012 to be selectively attached to and released from the second Y-shaped connector 1016b. Detaching the second free end 1018b of the chin strap 1012 from the second Y-shaped connector 1016b permits the wearer to more easily remove and install the helmet without having to pull the chin strap 1012 in front of the wearer’s face.

[OHl] As illustrated in Figures 10D and 10E, the release mechanism 1040 can be a snap buckle with a first buckle piece 1042 attached to the second Y-shaped connector 1016b via an attachment structure 1044 and a second buckle piece 1046 attached to the second free end 1018b of the chin strap 1012. As illustrated, the first buckle piece 1042 includes a hollow receiving body configured to receive therein flexible prongs of the second buckle piece 1046 in a snap fit configuration. To release the second free end 1018b of the chin strap 1012 from the second Y-shaped connector 1016b, the wearer can simply detach the second buckle piece 1046 from the first buckle piece 1042, such as by squeezing together the flexible prongs through side windows of the first buckle piece 1042 and pulling the prongs out of the hollow receiving body of the first buckle piece 1042. To reattach the second free end 1018b of the chin strap 1012 to the second Y-shaped connector 1016b, the wearer can simply insert the flexible prongs of the second buckle piece 1046 into the hollow receiving body of the first buckle piece 1042 until they snap in a locked position.

[0112] Figures 10F and 10G illustrate another embodiment in which the chin strap assembly 1010 includes first and second Y-shaped connectors 1016a, 1016b that are both separately formed from and attached to the chin strap 1012. As illustrated, the first Y- shaped connector 1016a can be connected to the chin strap 1012 by the loop 1018 as in the embodiments shown in Figures 10A-10E, with the actuator 1014 functioning in the same way, except that the actuator 1014 may or may not be removable from the helmet to release a first free end 1018a of the chin strap 1012 from the helmet. That is because the embodiment shown in Figures 10F and 10G includes a release mechanism 1040 that permits a second free end 1018b of the chin strap 1012 to be selectively attached to and released from a side of the helmet. Detaching the second free end 1018b of the chin strap 1012 from a side of the helmet permits the wearer to more easily remove and install the helmet without having to pull the chin strap 1012 in front of the wearer’s face.

[0113] As illustrated in Figures 10F and 10G, the release mechanism 1040 can be a snap buckle with a first buckle piece 1042 fixedly attached to a side the helmet shell via an attachment structure 1044 and a second buckle piece 1046 attached to the second free end 1018b of the chin strap 1012. The first buckle piece 1042 includes a hollow receiving body configured to receive therein flexible prongs of the second buckle piece 1046 in a snap fit configuration. To release the second free end 1018b of the chin strap 1012 from the side of the helmet, the wearer can simply detach the second buckle piece 1046 from the first buckle piece 1042, such as by squeezing together the flexible prongs through side windows of the first buckle piece 1042 and pulling the prongs out of the hollow receiving body of the first buckle piece 1042. To reattach the second free end 1018b of the chin strap 1012 to the side of the helmet, the wearer can simply insert the flexible prongs of the second buckle piece 1046 into the hollow receiving body of the first buckle piece 1042 until they snap in a locked position.

[0114] It will be appreciated that the embodiments illustrated in Figures 10A-10G can be modified to include other release mechanisms, such as Velcro® (hook and loop system), snaps, screws, clips, hooks, and the like.

Adjustable Fit Systems and Helmets Incorporating Such Systems

[0115] Figure 11 is a profile view that illustrates an embodiment of a protective helmet and adjustable fit system 100 of the present disclosure. As illustrated, the protective helmet 101 may include a shell 102 and an optional chin strap 112. The shell 102 may further an outer component 104 and an inner 106 component. In some embodiments, the outer component 104 can be a hard, rigid layer and the inner component 106 can be a more flexible liner attached or joined to the outer component 104.

[0116] The illustrated fit system comprises a fit strap 120 and an actuator 116 operably connected to the fit strap 120. As illustrated, the actuator 116 is side-accessible, easy to reach and manipulate, thereby enabling easy adjustment of the length of the fit strap 120. The actuator 116 may be a slider, detent, spring pump, ratchet system (e.g., pawl and ratchet), wheel, spring-loaded buckle, or other means for increasing or decreasing the length of the fit strap 120. In any disclosed embodiment, the actuator 116 can be adjusted in a stepwise fashion, allowing for precise incremental adjustments. The wearer can place the protective helmet 101 on his or her head and shorten (tighten) the fit strap 120 to achieve a comfortable and optimal fit. The actuator 116 may be accessed on the side of the helmet 100, either at a left ear area or a right ear area (as shown). In some embodiments, the left and/or right ear areas can encompass a left and/or right ear perimeter of the helmet shell 102 as well as the ear of the wearer.

[0117] In some embodiments, the adjustable fit system connects to the helmet shell 102 to or between the inner and/or outer components 104, 106. In some embodiments, the adjustable fit system comprises one or more ducts 118 that are inserted into channels of negative space in a protective helmet. One or more ducts 118 may be configured to have prongs, barbs, or similar physical mounting hardware to enable selective insertion and retention into a protective helmet or housing. The ducts 118 may be constructed with a rigid material for ease of insertion into a housing or a protective helmet. In some embodiments, the ducts 118 may be configured to receive any extra length of the elongated element 120 as its tightened. In other embodiments, the ducts 118 may be configured to allow the extra length of the elongated element 120 to slide freely through the duct and into negative space inside the protective helmet 101 or a housing attached thereto.

[0118] In some embodiments, the fit strap 120 is of monolithic construction, forming a cable, strap, or webbing made of rigid, semi-rigid, or woven material (e.g. cotton, polyester, or blend). The fit strap 120 may be a single continuous strap. The fit strap 120 may, in other embodiments, be constructed of a combination of the above-described materials or other similar materials. Portions of the fit strap 120 may include padding to provide comfort to the wearer. Other portions of the fit strap 120 may possess a certain level of rigidity to aid its insertion within ducts 118. The fit strap 120 may also possess anti-microbial properties in order to mitigate the negative effects of sweat and bacteria accumulation over a period of use.

[0119] Figure 12 illustrates an embodiment of an adjustable fit system 200 of the present disclosure that can be used with a protective helmet. Similar to Figure 11, the fit strap 220 has two ends, at least one of which is received by a duct 218 on one lateral side of the fit system and/or helmet. The fit system 200 includes a wheel type actuator 216 that is in mechanical communication with the duct 218 and the fit strap 220. The wheel actuator 216 may be attached to the shell on an external surface of a protective helmet or a housing attachable to a protective helmet, (e.g., on an external surface of the outer component). The wheel actuator 216 can be accessible at approximately a left ear area or approximately a right ear area (as shown). Alternatively, the wheel actuator 216 may be embedded in the shell, sandwiched between the inner and outer components. If the wheel actuator 216 is embedded in the shell, a portion of the actuator 216 will advantageously be accessible by the wearer.

[0120] In some embodiments, the fit system 200 comprises ducts 218 that are inserted into channels of negative space in a protective helmet or a housing attached to a helmet. One or both ducts 218 may be configured to have prongs, barbs, or similar physical mounting hardware to enable selective insertion and retention into a protective helmet or housing attached to the helmet. The ducts 218 may be constructed with a rigid material for ease of insertion into a housing or a protective helmet. In some embodiments, the ducts 218 may be configured to receive any extra length of the fit strap 220 as it is tightened by the wearer. In other embodiments, the ducts 218 may be configured to allow the extra length of the fit strap 220 to slide freely through the duct 218 and into negative space present within a protective helmet or a housing attached to the helmet.

[0121] In some embodiments, the fit strap 220 is of monolithic construction, forming a cable, a strap, or webbing made of rigid, semi-rigid, or woven materials (e.g. cotton, polyester, or a blend). The fit strap 220 may be a single, continuous strap. The fit strap 220 may, in other embodiments, be constructed of a combination of the above-described materials or other similar materials. Portions of the fit strap 220 may include padding to provide comfort to the wearer. Other portions of the fit strap 220 may possess a certain level of rigidity to aid its insertion within ducts 218. The fit strap 220 may also possess anti-microbial properties in order to mitigate the negative effects of sweat and bacteria accumulation over a period of use.

[0122] Figure 13 illustrates an embodiment of an adjustable fit system 300 of the present disclosure that can be used with a protective helmet. Similar to Figure 12, the fit strap 320 has two ends, at least one of which is received by a duct 318 on one lateral side of the fit system 300. The fit system 300 includes a wheel type actuator 316 that engages a pinion gear 322 associated with the fit strap 220. The pinion gear 322 may be housed in a duct 318. A wheel actuator 316 may be in mechanical communication with the duct 318 and the fit strap 320. The wheel actuator 316 may be attached to the shell of a protective helmet or a housing on an external surface (e.g., on an external surface of the outer component). Alternatively, the wheel actuator 316 may be embedded in the shell of a protective helmet or a housing, sandwiched between the inner and outer components. If the wheel actuator 316 is embedded in the shell, a portion of the wheel will be accessible for the wearer. In another embodiment, the wheel actuator 316 may be attached to a housing 336 (not shown) that is part of the fit system and not the protective helmet. In this embodiment, the housing is attachable to protective helmets.

[0123] In some embodiments, the pinion gear 322 is positioned within the shell of a protective helmet (not shown), such as between inner and outer components of the shell. In some embodiments, the pinion gear 322 may be received by a duct 318 or groove of the inner or outer components of a protective helmet. When the inner and outer components are substantially a uniform piece, the pinion gear 322 may be received by a duct 318 between the inner and outer components. In some embodiments, the pinion gear 322 can be placed adjacent to the shell. In some embodiments, the pinion gear 322 may be a continuation of the elongated element 320. The actuator wheel 316 may be easily accessed on the side of the protective helmet in real time- either at approximately a left ear area or approximately a right ear area (as shown).

[0124] In some embodiments, the fit system comprises ducts 318 that are inserted into channels of negative space in a protective helmet. One or both ducts 318 may be configured to have prongs, barbs, or similar physical mounting hardware to enable selective insertion and retention into a protective helmet or housing. The ducts may be constructed with a rigid material for ease of insertion into a housing or a protective helmet. In some embodiments, the ducts 318 may be configured to receive any extra length of the fit strap 320 as it is being tightened. In other embodiments, the ducts 318 may be configured to allow the extra length of the fit strap 320 to slide freely through the duct and into negative space present within a protective helmet or a housing attachable to a helmet. [0125] In some embodiments, the fit strap 320 can be of monolithic construction, forming a cable, a strap, or webbing made of rigid, semi-rigid, or woven materials (e.g. cotton, polyester, or a blend). The elongated element may be a single, continuous strap. The fit strap 320 may, in other embodiments, may be constructed of a combination of the abovedescribed materials or other similar materials. Portions of the fit strap 320 may include padding to provide comfort to the user. Other portions of the fit strap 320 may possess a certain level of rigidity to aid its insertion within the ducts 318. The fit strap 320 may also possess anti-microbial properties in order to mitigate the negative effects of sweat and bacteria accumulation over a period of use.

[0126] Figure 14 illustrates an embodiment of an adjustable fit system 400 of the present disclosure that can be used with a protective helmet. Similar to Figures 12 and 13, the fit strap 420 has two ends, at least one of which is received by a duct 418 on a lateral side of the fit system. The fit system includes a slide type actuator 438, which includes an actuator switch 428 and a ribbon 426. The ribbon 426 is configured to extend into the duct 418, which in turn can be configured to extend into a shell of a protective helmet. In another embodiment, the duct 418 may be configured to extend into a housing attachable to a protective helmet. In some embodiments, the ribbon 426 can be attached to an end of the fit strap 420. A user may selectively move the actuator switch 428 in one direction to tighten the fit strap 420 or move it in the opposite direction to loosen it.

[0127] The actuator switch 428 and ribbon 426 of the slide type actuator 438 may be attached to the shell of a protective helmet or a housing on an external surface (e.g., on an external surface of the outer component). Alternatively, the actuator switch 428 and ribbon 426 of the slide type actuator 438 may be embedded in the shell of a protective helmet or a housing, sandwiched between the inner and outer components. If the actuator switch 428 and ribbon 426 of the slide type actuator 438 are embedded in the shell of a protective helmet, a portion of it may be accessible by the user. In another embodiment, the actuator switch 428 and ribbon 426 of the slide type actuator 438 may be attached to a housing (not shown) that is part of the fit system and not the protective helmet. In this embodiment, the housing is attachable to protective helmets. As shown in previously disclosed embodiments, the actuator 438 may be accessed on a side of a protective helmet, either at approximately a left ear area or approximately a right ear area (as shown).

[0128] In some embodiments, the fit system 400 comprises ducts 418 that are inserted into channels of negative space in a protective helmet or a housing. One or both ducts 418 may be configured to have prongs, barbs, or similar physical mounting hardware to enable selective insertion and retention into a protective helmet or housing. The ducts 418 may be constructed with a rigid material for ease of insertion into a housing or a protective helmet.

[0129] In some embodiments, the fit strap 420 is of monolithic construction, forming a cable, a strap, or webbing made of rigid, semi-rigid, or woven materials (e.g. cotton, polyester, or a blend). The fit strap 420 may be a single, continuous strap. The fit strap 420 may, in other embodiments, may be constructed of a combination of the above-described materials or other similar materials. Portions of the fit strap 420 may include padding to provide comfort to the user. Other portions of the fit strap 420 may possess a certain level of rigidity to aid its insertion within ducts 418. The fit strap 420 may also possess antimicrobial properties in order to mitigate the negative effects of sweat and bacteria accumulation over a period of use. [0130] Figure 15 illustrates an embodiment of an adjustable fit system 500 of the present disclosure that can be used with a protective helmet. Similar to embodiments in previous figures, a fit strap 520 has two ends, at least one of which is received by a duct 518 on a lateral side of the fit system. The fit system 500 includes a buckle-type actuator 530, which includes a buckle 532 and a buckle catch 524, similar to micro buckles of a ski boot. Pressing or otherwise manipulating the buckle 532 engages the buckle 524 catch to either tighten or loosen the fit strap 520. In some embodiments, the buckle catch 524 can be a continuous extension of the elongated element 520. That is, one end of the fit strap 520 forms the buckle catch 524. In some embodiments, the buckle catch 524 is a separate piece attached or connected to an end of the fit strap 520. The buckle 532 may be partially embedded in a shell of a protective helmet (not shown) or a housing attachable to a helmet. [0131] Figure 16 illustrates a wheel actuator 616 engaging a pinion gear 622. The wheel may be embedded into the shell of a protective helmet, sandwiched between the inner and outer components. If the wheel is embedded in the shell, a portion of the wheel will be accessible for the user, as illustrated.

[0132] Figures 17A and 17B show example embodiments of protective helmets 700a, 700b equipped with a fit system of the present disclosure. A fit strap 720 has two ends, at least one of which is received by a duct 718 within the protective helmet 700a. In some embodiments, the fit strap 720 may pass through a third duct 718, which defines two arms 740. In the embodiment of Figure 17A, the arms 740 anchor the fit strap 720 to the inner component 706 of the protective helmet 700a at anchor points 742a, 742b. In the embodiment of Figure 17B, the third duct 718 may define one arm that anchors the elongated element to the protective helmet at a single point 742 on the inner portion 706 of the protective helmet 700. In both embodiments, an actuator 716 is disposed on a lateral side of the protective helmet 700 or a housing attachable to a protective helmet.

[0133] It should be understood that the features described in relation to one Figure are applicable to the features and embodiments of all the Figures. In some embodiments above, the fit strap may be configured to be inserted into negative space within a housing configured to attach to various iterations of different types of protective helmets. The housing is configured to be externally attached to or internally embedded within a helmet. The housing may be made of a variety of materials, such as plastic and metal. The housing may be of monolithic construction with negative space to receive a duct. In other embodiments, the housing may be constructed with multiple parts which would allow for removal of internal components, such as ducts, for replacement or repair. Adjustable Chin Strap and Fit Systems and Helmets Incorporating Such Systems

[0134] Embodiments of combined adjustable chin strap and fit systems provide a number of benefits, technical solutions, and advantages over the prior art. For example, the disclosed combined adjustable chin strap and fit systems enable a single-point total adjustment for a wearer. This ease of adjustment allows a wearer to adapt the fit of the system without the need to remove the adjustable chin strap and fit system or the need to use more than one hand. The disclosed combined adjustable chin strap and fit systems are further beneficial as they are adaptable to be either embedded into or connected to a chosen protective helmet. This modularity allows wearers to develop a level of comfort with their system without learning and adapting to a new system each time they replace their protective helmet. Further, the combined adjustable chin strap and fit systems allow for simultaneous adjustment of a protective helmet such that when adjusted, a wearer’s head is not positioned too far forward, backward, or to either side of the protective helmet during adjustment.

[0135] Figure 18A is a side view of an embodiment of a combined adjustable chin strap and fit system 100 of the present disclosure. Figure 18B is a front view of the embodiment shown in Figure 18 A. Figure 18C is an isometric perspective view of the embodiment shown in Figure 18 A. As illustrated, the combined adjustable chin strap and fit system 100 comprises a strap 102, a first duct 104, a second duct 106, and an actuator 108. In some embodiments, the strap 102 is of monolithic construction, wherein the material is a semirigid cable. In another embodiment, the strap 102, again of monolithic construction, is a flexible material and may exhibit elastically deformable properties (e.g., rubber). In another embodiment, the strap 102 may be a woven material. In some embodiments, the strap 102 may be a combination of the above-described materials, or similar, such that portions of the strap 102 may be of a padded or otherwise comfortable material to limit irritation to the wearer, while other portions of the strap 102 may be rigid or semi-rigid flexible materials to aid in its manipulation through first and second ducts 104 and 106 as well as its mechanical engagement with the actuator 108. The strap 102 may also exhibit anti-microbial properties. These properties provide the wearer the benefit of being able to simply wipe down the strap 102 after use without the need to heavily clean strap 102 to avoid a stagnation of sweat or other compounds.

[0136] The strap 102 may also have a fixed endpoint 110 and an adjustable endpoint 112. The adjustable endpoint 112 may be configured to slide freely through at least a portion of the length of either first duct 104 or second duct 106. In one embodiment, the adjustable endpoint may protrude outside of the first duct 104 during the tightening of the strap 102. The endpoint 112 may also be configured to enter negative space inside a housing or a protective helmet. In some embodiments, the fixed endpoint 110 may be configured to have prongs, barbs, or similar physical mounting hardware to enable selective insertion and retention into a protective helmet or housing. In another embodiment, the fixed endpoint 110 may be permanently embedded into a protective helmet or housing.

[0137] The first and second ducts 104 and 106 may be formed of a hard and rigid material (e.g., plastic) such that the adjustable chin strap and fit system 100 may be operated without any additional components. In some embodiments, the first and second ducts 104 and 106 may be formed inside of or embedded into a protective helmet (see Figures 22 A- 22D) such that the adjustable chin strap and fit system is seamlessly integrated into the protective helmet. In another embodiment, the first and second ducts 104 and 106 may be embedded into housings (see Figure 19B).

[0138] As illustrated, the actuator 108 is located on the side of the adjustable chin strap and fit system 100. The location of the actuator 108 allows for easy adjustment and manipulation by the wearer. In some embodiments, the actuator may be a slider, detent, spring pump, ratchet system, or some other similar means for increasing or decreasing the length of the strap 102. In any given embodiment, the stepwise adjustments of actuator 108 allow a wearer to precisely select a fit and pressure of the strap 102 on their head. In some embodiments, the single actuator 108 allows for single-handed adjustment of the adjustable chin strap and fit system 100.

[0139] Figure 19A illustrates an embodiment of an adjustable chin strap and fit system 120 of the present disclosure. As illustrated, the adjustable chin strap and fit system 120 comprises a strap 122, a first duct 124, a second duct 126, an actuator 128, and a pair of trusses 130 and 132. The adjustable chin strap and fit system 120 allows protective helmets to obtain a lower point of rotation as the trusses 130 and 132 extend the rotational point of the adjustable chin strap and fit system 120 to a point below the actuator 128.

[0140] The truss pair, including first and second trusses 130, 132, may be configured to anchor at least a portion of the strap 122, limiting its movement. An anchor fitting may be located at either end or on the length of either truss 130 or 132. In some embodiments, the trusses 130 and 132 may be configured to allow strap the 122 to be threaded through an opening at either end of the trusses 130 and 132. In some embodiments, the trusses 130 and 132 may retain the strap 122 along the length of the trusses through the use of a channel, loops, a duct, or with a similar means of retention. In some embodiments, the trusses 130 and 132 may be of a rigid material. In some embodiments, the trusses 130 and 132 may be of a material with inherent spring-like properties to allow for the trusses 130 and 132 to deflect from their resting position and maintain a curved position when under the tension of strap 122. In some embodiments, the trusses 130 and 132 may be embedded into, extruded from, or attached to the body of a protective helmet. In some embodiments, the trusses 130 and 132 may be embedded into housings or casings, as seen in Figure 19B. In some embodiments (not shown), the trusses 130 and 132 may extend from a position substantially perpendicular to the strap 122.

[0141] In some embodiments, the strap 122 can be of monolithic construction, wherein the material is a semi-rigid cable. In another embodiment, the strap 122, again of monolithic construction, is a flexible material and may exhibit elastically deformable properties (e.g., rubber). In another embodiment, the strap 122 may be a woven material. In some embodiments, the strap 122 may be a combination of the above-described materials, or similar, such that portions of the strap 122 may be of a padded or otherwise comfortable material to limit irritation to the wearer, while other portions of the strap 122 may be rigid or semi-rigid flexible materials to aid in its manipulation through the ducts 124 and 126 as well as its mechanical engagement with the actuator 128. The strap 122 may also exhibit anti-microbial properties. These properties provide the wearer the benefit of being able to simply wipe down the strap 122 after use without the need to heavily clean strap 122 to avoid stagnation of sweat or other compounds. The strap 122 may also have a fixed endpoint 134 and an adjustable endpoint 136. The adjustable endpoint 136 may be configured to slide freely through at least a portion of the length of either duct 124 or 126. In one embodiment, the adjustable endpoint may protrude outside of the duct 124 during the tightening of the strap 122. The adjustable endpoint 136 may also be configured to enter negative space inside a housing or a protective helmet. In some embodiments, the fixed endpoint 134 may be configured to have prongs, barbs, or similar physical mounting hardware to enable selective insertion and retention into a protective helmet or housing. In another embodiment, the fixed endpoint 134 may be permanently embedded into a protective helmet or housing. As seen in Figure 19A, the fixed endpoint 134 may be selectively or permanently attached to the truss 130.

[0142] The ducts 124 and 126 may be formed of a hard and rigid material (e.g., plastic) such that the adjustable chin strap and fit system 120 may be operated without any additional components. In some embodiments, the ducts 124 and 126 may be formed inside of or embedded into a protective helmet (see Figures 22A-22D) such that the adjustable chin strap and fit system can be seamlessly integrated into the protective helmet. In some embodiments, the first and second ducts 124, 126 may be selectively coupled to first and second trusses 130, 132, respectively, such that the first duct 124 and first truss 130 form a single solid component, and the second duct 126 and second truss 132 form a single solid component.

[0143] As illustrated, the actuator 128 can be located on the side of the adjustable chin strap and fit system 120. The location of the actuator 128 allows for easy adjustment and manipulation by the wearer. In some embodiments, the actuator may be a slider, detent, spring pump, ratchet system, or some other similar means for increasing or decreasing the length of the strap 122. In any given embodiment, the stepwise adjustments of actuator 128 allow a wearer to precisely select a fit and pressure of the strap 122 on his or her head. In some embodiments, the single actuator 128 allows for single-handed adjustment of the adjustable chin strap and fit system 120.

[0144] Figure 19B illustrates an embodiment of an adjustable chin strap and fit system 140 of the present disclosure. As illustrated, the adjustable chin strap and fit system 140 comprises a strap 142, a first duct 144, a second duct 146, an actuator 148, a pair of first and second trusses 150 and 152, and first and second housings 154 and 156. The adjustable chin strap and fit system 140 allows the protective headwear it is connected to obtain a lower point of rotation, as the trusses 150 and 152 extend the rotational point of the adjustable chin strap and fit system 140 to a point below the actuator 148.

[0145] The first and second housings 154 and 156 are designed to encase the first and second ducts 144 and 146, respectively, the actuator 148, as well as the first and second trusses 150 and 152, respectively. In some embodiments, the trusses 154 and 156 may be mounted externally to the housings through the use of clips, channels, sockets, or by any other mechanical means. The housings 154 and 156 may be made of a variety of materials, not limited to polymers, plastics, and metals. In some embodiments, the housings 154 and 156 may be of a single monolithic construction. In some embodiments, the housings 154 and 156 may be multipart components, allowing for the opening and removal of components such as ducts 144 and 146 for replacement or repair. The housings 154 and 156 may have a means of attachment not shown (e.g. clips, slots, channels, sockets, or otherwise) or connection on their exterior surfaces for attachment into corresponding sockets on a protective helmet. In some embodiments, the housings 154 and 156 may be otherwise embedded or modeled into the body of a protective helmet. [0146] The truss pair, including first and second trusses 150 and 152, may be configured to include an anchor fitting (not shown) configured to retain a portion of the strap 142. The anchor fittings may be located at either end or on the length of either truss 150 or 152. In some embodiments, the trusses 150 and 152 may be configured to allow strap 142 to be threaded through an opening(s) at either end of the trusses 150 and 152. In some embodiments, the trusses 150 and 152 may retain the strap 142 along the length of the trusses through the use of a channel, loops, a duct, or with a similar means of retention. In some embodiments, the trusses 150 and 152 may be of a rigid material. In some embodiments, the trusses 150 and 152 may be of a material with inherent spring-like properties to allow for the trusses 150 and 152 to deflect from their resting position and maintain a curved position when under the tension of strap 142. In some embodiments, the trusses 150 and 152 may be embedded into, extruded from, or attached to the body of a protective helmet. In some embodiments, the first and second trusses 150 and 152 may be embedded into the first and second housings 154 and 156, respectively. In some embodiments not shown, the trusses 130 and 132 may extend from a position substantially perpendicular to the strap 142.

[0147] In some embodiments, the strap 142 is of monolithic construction, wherein the material is a semi-rigid cable. In another embodiment, the strap 142, again of monolithic construction, is a flexible material and may exhibit elastically deformable properties (e.g., rubber). In another embodiment, the strap 142 may be woven material. In some embodiments, the strap 142 may be a combination of the above-described materials, or similar, such that portions of the strap 142 may be of a padded or otherwise comfortable material to limit irritation to the wearer, while other portions of the strap 142 may be rigid or semi-rigid flexible materials to aid in its manipulation through first and second ducts 144 and 146 as well as its mechanical engagement with the actuator 148. The strap 142 may also exhibit anti-microbial properties. These properties provide the wearer the benefit of being able to simply wipe down the strap 142 after use without the need to heavily clean strap 142 to avoid a stagnation of sweat or other compounds.

[0148] The ducts 144 and 146 may be formed of a hard and rigid material (e.g., plastic) such that the adjustable chin strap and fit system 140 may be operated without any additional components. In some embodiments, the ducts 144 and 146 may be formed inside of or embedded into a protective helmet (see Figures 22A-22D) such that the adjustable chin strap and fit system can be seamlessly integrated into a protective helmet. In some embodiments, the first and second ducts 144 and 146 may be selectively coupled to the first and second trusses 150 and 152 and the first and second housings 154 and 156, respectively, such that the first duct 144, first truss 150, and first housing 154 form a single solid component, and the second duct 146, second truss 152, and second housing 156 form a single solid component.

[0149] As illustrated, the actuator 148 is located on the side of the adjustable chin strap and fit system 140. The location of the actuator 148 allows for easy adjustment and manipulation by the wearer. In some embodiments, the actuator may be a slider, detent, spring pump, ratchet system, or some other similar means for increasing or decreasing the length of the strap 142. In any given embodiment, the stepwise adjustments of actuator 148 allow a wearer to precisely select a fit and pressure of the strap 142 on their head. In some embodiments, the single actuator 148 allows for single-handed adjustment of the adjustable chin strap and fit system 140. In some embodiments, at least a portion of the actuator 148 may be embedded into the housing 154 or 156 (not shown).

[0150] Figure 20 illustrates an embodiment of the adjustable chin strap and fit system 160 of the present disclosure. As illustrated, the adjustable chin strap and fit system 160 comprises a strap 162, a first duct 164, a second duct 166, an actuator 168, a third duct 170, and a fourth duct 172. The strap 162 may be continuous and closed-looped in nature. In some embodiments, the strap 162 is of monolithic construction, wherein the material is a semi-rigid cable. In another embodiment, the strap 162, again of monolithic construction, is a flexible material and may exhibit elastically deformable properties (e.g., rubber). In another embodiment, the strap 162 may be woven material. In some embodiments, the strap 162 may be a combination of the above-described materials, or similar, such that portions of the strap 162 may be of a padded or otherwise comfortable material to limit irritation to the wearer, while other portions of the strap 162 may be rigid or semi-rigid flexible materials to aid in its manipulation through ducts 164 and 166 as well as its mechanical engagement with the actuator 168. The strap 162 may also exhibit antimicrobial properties. These properties provide the wearer the benefit of being able to simply wipe down the strap 162 after use without the need to heavily clean strap 162 to avoid a stagnation of sweat or other compounds.

[0151] The ducts 164, 166, 170, and 172 may be formed of a hard and rigid material (e.g., plastic) such that the adjustable chin strap and fit system 160 may be operated without any additional components. In some embodiments, the ducts 164, 166, 170, and 172 may be formed inside of or embedded into a protective helmet (see Figures 22A-22D) such that the adjustable chin strap and fit system is seamlessly integrated into the protective helmet. In another embodiment, the ducts 164, 166, 170, and 172 may be embedded into housings (see Figure 19B). In some embodiments, the duct 170 may be external to any housing, compartment, or body of a protective helmet allowing the loop created in strap 162 by duct 170 to be accessible by the wearer. The wearer then may be able to pull on the created loop of strap 162 to tighten the strap 162, securing the adjustable chin strap and fit system and accompanying protective helmet to the head of the wearer.

[0152] As illustrated, the actuator 168 is located on the side of the adjustable chin strap and fit system 160. The location of the actuator 168 allows for easy adjustment and manipulation by the wearer. In some embodiments, the actuator may be a slider, detent, spring pump, ratchet system, or some other similar means for increasing or decreasing the length of the strap 162. In some embodiments, the actuator 168 may be a press-to-release mechanism, that allows the strap 162 to be loosened from its secured position. In another given embodiment, the stepwise adjustments of actuator 168 allow a wearer to precisely select a fit and pressure of the strap 162 on their head. In some embodiments, the single actuator 168 allows for single-handed adjustment of the adjustable chin strap and fit system 160.

[0153] Figures 21 A and 21B illustrate embodiment of adjustable chin strap and fit system 180 and 200, which are similar in most respects and have interchangeable features. As illustrated in Figure 21A, the adjustable chin strap and fit system 180 comprises a first strap 182, a first duct 184, an actuator 186, a second strap 188, a second duct 190, and an actuator 192. The straps 182 and 188 may have a fixed end and an adjustable end. In some embodiments, the straps 182 and 188 are of monolithic construction, wherein the material is a semi-rigid cable. In another embodiment, the straps 182 and 188, again of monolithic construction, are flexible materials and may exhibit elastically deformable properties (e.g., rubber). In another embodiment, the straps 182 and 188 may be made of woven material. In some embodiments, the straps 182 and 188 may be a combination of the abovedescribed materials, or similar, such that portions of the straps 182 and 188 may be of a padded or otherwise comfortable material to limit irritation to the wearer, while other portions of the straps 182 and 188 may be rigid or semi-rigid flexible materials to aid in its manipulation through ducts 184 and 190 as well as its mechanical engagement with the actuators 186 and 192. The straps 182 and 188 may also exhibit anti-microbial properties. These properties provide the wearer the benefit of being able to simply wipe down the straps 182 and 188 after use without the need to heavily clean the straps 182 and 188 to avoid a stagnation of sweat or other compounds. [0154] In some embodiments, the fixed endpoints of straps 182 and 188 may be embedded into the body of a protective helmet (e.g., Figures 22A-22D). In some embodiments, the ducts 184 and 190 may be selectively coupled to trusses (e.g., Figures 19A-19B). In another embodiment, the fixed endpoints of straps 182 and 188 may be embedded into housings (e.g., housings 208 and 216 in Figure 21B). In some embodiments, the fixed endpoints of straps 182 and 188 may be pronged, barbed, or otherwise capable of one-time insertion into a protective helmet, at which time the fixed endpoint is retained inside the protective helmet by the prongs, barbs, or corresponding fixtures located in the protective helmet.

[0155] The ducts 184 and 190 may be formed of a hard and rigid material (e.g., plastic) such that the adjustable chin strap and fit system 180 may be operated without any additional components. In some embodiments, the ducts 184 and 190 may be formed inside of or embedded into a protective helmet (see Figures ssA-22D) such that the adjustable chin strap and fit system is seamlessly integrated into the protective helmet [0156] As illustrated, the actuators 186 and 192 are located on the side of the adjustable chin strap and fit system 180. The location of the actuators 186 and 192 allows for easy adjustment and manipulation by the wearer. In some embodiments, the actuators may be a slider, detent, spring pump, ratchet system, or some other similar means for increasing or decreasing the length of the straps 182 and 188. In some embodiments, the actuators 186 and 192 may be a press-to-release mechanism, that allows the straps 182 and 188 to be loosened from their secured position. In another given embodiment, the stepwise adjustments of actuators 186 and 192 allow a wearer to precisely select a fit and pressure of the straps 182 and 188 on their head. The second actuator allows the wearer further precision and control over the adjustable chin strap and fit system 180. The wearer may be able to quickly and separably adjust either strap 182 or 188, depending on the needs of the wearer.

[0157] As illustrated in Figure 2 IB, the adjustable chin strap and fit system 200 comprises a strap 202, a duct 204, an actuator 206, a housing 208, a strap 210, a duct 212, an actuator 214, and a housing 216. The straps 202 and 210 may have a fixed end and an adjustable end. In some embodiments, the straps 202 and 210 are of monolithic construction, wherein the material is a semi-rigid cable. In another embodiment, the straps 202 and 210, again of monolithic construction, are a flexible material and may exhibit elastically deformable properties (e.g., rubber). In another embodiment, the straps 202 and 210 may be woven material. In some embodiments, the straps 202 and 210 may be a combination of the above- described materials, or similar, such that portions of the straps 202 and 210 may be of a padded or otherwise comfortable material to limit irritation to the wearer, while other portions of the straps 202 and 210 may be rigid or semi-rigid flexible materials to aid in its manipulation through ducts 204 and 212 as well as its mechanical engagement with the actuators 206 and 214. In another embodiment, the straps 202 and 210 may allow for padding or comfort-focused material to be selectively coupled to at least a portion of the straps 202 and 210. The straps 202 and 210 may also exhibit anti-microbial properties. These properties provide the wearer the benefit of being able to simply wipe down the straps 202 and 210 after use without the need to heavily clean the straps 202 and 210 to avoid a stagnation of sweat or other compounds. In some embodiments, the fixed endpoints of straps 202 and 210 may be embedded into the body of a protective helmet. In another embodiment, the fixed endpoints of straps 202 and 210 may be embedded into housings. In some embodiments, the fixed endpoints of straps 202 and 210 may be pronged, barbed, or otherwise capable of one-time insertion into the housings, at which time the fixed endpoint is retained inside the housings by the prongs, barbs, or corresponding fixtures located in the housings.

[0158] The ducts 204 and 212 may be formed of a hard and rigid material (e.g., plastic) such that the adjustable chin strap and fit system 200 may be operated without any additional components. The ducts 204 and 212 may be embedded into the housings 208 and 216 or may take the form negative space located in housings 208 and 216. In some embodiments, the ducts 204 and 212 may be formed inside of or embedded into a protective helmet (see Figures 22A-22D) such that the adjustable chin strap and fit system is seamlessly integrated into the protective helmet. In some embodiments, the ducts 204 and 212 may be selectively coupled to trusses.

[0159] As illustrated, the actuators 206 and 214 are located on either side of the adjustable chin strap and fit system 200. The location of the actuators 206 and 214 allows for easy adjustment and manipulation by the wearer. In some embodiments, the actuators may be a slider, detent, spring pump, ratchet system, or some other similar means for increasing or decreasing the length of the straps 202 and 210. In some embodiments, the actuators 206 and 214 may be a press-to-release mechanism that allows the straps 202 and 210 to be loosened from their secured position. In another given embodiment, the stepwise adjustments of actuators 206 and 214 allow a wearer to precisely select a fit and pressure of the straps 208 and 210 on their head. The second actuator allow the wearer further precision and control over the adjustable chin strap and fit system 200. The wearer may be able to quickly and separably adjust either the strap 208 and 210 depending on the needs of the wearer.

[0160] The housings 208 and 216 are designed to encase the ducts 204 and 212, the actuators 206 and 214. In some embodiments, trusses (not shown) may be mounted externally to the housings through the use of clips, channels, sockets, or by any other mechanical means. The housings 208 and 216 may be made of a variety of materials, not limited to polymers, plastics, and metals. In some embodiments, the housings 208 and 216 may be of a single monolithic construction. In some embodiments, the housings 208 and 216 may be multipart components, allowing for the opening and removal of components such as ducts 204 and 212 for replacement or repair. The housings 208 and 216 may have a means of attachment not shown (e.g. clips, slots, channels, sockets, or otherwise) or connection on their exterior surfaces for attachment into corresponding sockets on a protective helmet. In some embodiments, the housings 208 and 216 may be otherwise embedded or modeled into the body of a protective helmet.

[0161] Figures 22A-22D illustrate helmets and adjustable chin strap and fit systems.

[0162] Figure 22A illustrates an embodiment of a protective headwear system 224 with an adjustable chin strap and fit system 220 of the present disclosure. The adjustable chin strap and fit system 220 is an exemplary example of the prior described adjustable chin strap and fit systems of the present disclosure and their use in conjunction with a protective helmet.

[0163] The protective headwear system 224 comprises an adjustable chin strap and fit system 220 and a protective helmet 222. The adjustable chin strap and fit system 220 could be any of the prior described embodiments and their described components. In a given embodiment, the adjustable chin strap and fit system 220 may be seamlessly integrated in the protective helmet 222. In another embodiment, the adjustable chin strap and fit system 220 may be selectively coupled to the protective helmet 222. In an embodiment of the protective headwear system, protective helmet 222 may be a bicycle helmet, a motorcycle helmet, a racing helmet, a battlefield helmet, a construction hardhat, or any other form of protective headwear.

[0164] Figure 22B depicts another embodiment of a helmet and adjustable chin strap and fit system 220 similar to Figure 22A, but with front and rear tethers 232 and 234, which split at a connector 230, on either side of the combined adjustable chin strap and fit system 220. The front and rear tethers 232 and 234 attach to respective sides of the helmet in front of and behind the ear, respectively, which provides added stability and resistance to dislodgement of the helmet during use.

[0165] Figure 22C depicts yet another embodiment of a helmet and adjustable chin strap and fit system 200 similar to Figure 22A, but with a pair of trusses 240 to the combined adjustable chin strap and fit system depicted in Figures 19A and 19B discussed above. The pair of trusses 240 provide added stability and resistance to dislodgement of the helmet during use.

[0166] Figure 22D depicts an embodiment of a helmet and adjustable chin strap and fit system 220 with trusses 240 similar to Figure 22C, but with separate attachment structures or housings 242 that permit the combined adjustable chin strap and fit system 220 with trusses 240 to be manufactured separately and then incorporated into a helmet.

[0167] Figures 23A-23D illustrate various embodiments and examples of actuator or adjustment mechanisms configured to adjust a chin strap and/or fit strap of a helmet and combined adjustable chin strap and fit system, such as the helmet and systems described herein.

[0168] Figure 23A illustrates a slide-type actuator which includes a switch 232, a strap 234, and a duct 236. The strap 234 is configured to extend into a protective helmet or a housing 230 through a duct 236 and engage with the switch 232. In some embodiments, the strap 234 is attached to a strap of the present disclosure. In some embodiments, the strap 234 is a strap of the present disclosure. A wearer may flip the switch ‘up’ to tighten the strap 234 and may flip the switch ‘down’ to loosen the chin strap.

[0169] Figure 23B illustrates a buckle-type actuator. The buckle-type actuator may include a buckle 238 and a buckle catch 242, similar to the micro buckles of a ski boot. The buckle 238 engages the buckle catch 242 to either tighten or loosen the strap 240. As shown in Figure 8B, the buckle 238 may be partially embedded in a protective helmet or housing 230. The buckle catch 242 may at least extend for a portion of the length of strap 240. In another embodiment, the buckle catch may be an extension added to the end of strap 240.

[0170] Figures 23C-23D illustrate various components and placements of an actuator 246. Figure 23 C illustrates an actuator wheel 246 attached to a housing 230 and that interacts with a strap 244, which can be slidably disposed in duct 248, to selectively loosen or tighten the strap 244. Figure 23D illustrates the actuator 246 engaging a pinion gear 252 of a strap 250. The actuator 246 may be attached to a housing 230, as shown, or a protective helmet (not sown). Alternatively, the actuator wheel 246 may be embedded in the housing 230 or protective helmet, such as sandwiched between the inner and outer components. If the wheel is embedded in the shell, a portion of the wheel will be accessible for the wearer.

Methods of Manufacturing

[0171] In some embodiments, the helmet shell can be manufactured as a composite piece. That is, a thin piece of plastic (i.e., the outer component of the shell) is placed in a mold and conforms to the surface of the mold. Beads of polystyrene (i.e., the inner component of the shell) are then added to the mold and then injected with steam under pressure. The steam expands the polystyrene beads, forming them into the shape of the mold, essentially making a completed shell of the helmet. The thin piece of plastic is also heated by the steam, and it conforms very tightly to the expanded polystyrene (EPS) foam.

[0172] In some embodiments, the thin piece of plastic not only adheres to the foam, but leaves no gaps, filling every available bit of space with foam. Thus, the outer component and the inner component of the shell directly interface with each other. In some embodiments, the thin piece of plastic adheres to the foam but leaves a gap between the plastic and foam. This gap is configured to house additional components of the helmet system (e.g., anchor fittings) or receive at least a portion of the chin strap as the chin strap is tightened around the chin of a wearer.

[0173] It should be understood that the features described in relation to one figure are applicable to the features and embodiments of all the figures.

Additional Terms & Definitions

[0174] While certain embodiments of the present disclosure have been described in detail, with reference to specific configurations, parameters, components, elements, etcetera, the descriptions are illustrative and are not to be construed as limiting the scope of the claimed invention.

[0175] Furthermore, it should be understood that for any given element of component of a described embodiment, any of the possible alternatives listed for that element or component may generally be used individually or in combination with one another, unless implicitly or explicitly stated otherwise.

[0176] In addition, unless otherwise indicated, numbers expressing quantities, constituents, distances, or other measurements used in the specification and claims are to be understood as optionally being modified by the term “about” or its synonyms. When the terms “about,” “approximately,” “substantially,” or the like are used in conjunction with a stated amount, value, or condition, it may be taken to mean an amount, value or condition that deviates by less than 20%, less than 10%, less than 5%, less than 1%, less than 0.1%, or less than 0.01% of the stated amount, value, or condition. At the very least, and not as an attempt to limit the application of the doctrine of equivalents to the scope of the claims, each numerical parameter should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques.

[0177] Any headings and subheadings used herein are for organizational purposes only and are not meant to be used to limit the scope of the description or the claims.

[0178] It will also be noted that, as used in this specification and the appended claims, the singular forms “a,” “an” and “the” do not exclude plural referents unless the context clearly dictates otherwise. Thus, for example, an embodiment referencing a singular referent (e.g., “widget”) may also include two or more such referents.

[0179] It will also be appreciated that embodiments described herein may also include properties and/or features (e.g., ingredients, components, members, elements, parts, and/or portions) described in one or more separate embodiments and are not necessarily limited strictly to the features expressly described for that particular embodiment. Accordingly, the various features of a given embodiment can be combined with and/or incorporated into other embodiments of the present disclosure. Thus, disclosure of certain features relative to a specific embodiment of the present disclosure should not be construed as limiting application or inclusion of said features to the specific embodiment. Rather, it will be appreciated that other embodiments can also include such features.

Claims

1. A helmet and adjustable chin strap assembly, comprising: a helmet shell configured to at least partially cover a wearer’s head, wherein the helmet shell includes: an outer component and an inner component; a front and a back; and a left side region and a right side region; and an adjustable chin strap retention system including: a chin strap having two opposing ends, a first end configured to attach to the left side region and a second end configured to attach to the right side region; and an actuator configured to attach to the left or right side region of the helmet shell and be operably connected to the chin strap so that actuating the actuator selectively increases or decreases a length of the chin strap relative to the left and right side regions of the helmet shell in order to selectively loosen or tighten the chin strap, respectively.

2. The helmet and adjustable chin strap assembly of claim 1, wherein the actuator comprises a slider, detent, spring pump, ratchet system, wheel, or other means for selectively increasing or decreasing the length of the chin strap.

3. The helmet and adjustable chin strap assembly of claim 2, wherein the actuator is attached to the outer component of the helmet shell at a first side region of the helmet shell and operably attached to one of the opposing ends of the chin strap, with the opposing end of the chin strap being attached to an opposite side region of the helmet shell.

4. The helmet and adjustable chin strap assembly of any one of claims 1 to 3, the chin strap retention system further comprising a truss pair, wherein a first truss of the truss pair is attached to the left side region of the helmet shell and a second truss of the truss pair is attached to the right side region of the helmet shell, each truss extending a distance away from the shell, wherein the first and second ends of the chin strap are fed through the first and second trusses, respectively, of the truss pair.

5. The helmet and adjustable chin strap assembly of any one of claims 1 to 3, wherein the chin strap includes first and second Y-shaped helmet attachment structures, each configured to attach to a respective left or right side region of the helmet shell and each comprising a first strap section configured to attach to the helmet shell forward of a wearer’s ear and a first strap section configured to attach to the helmet shell behind the wearer’ s ear.

6. The helmet and adjustable chin strap assembly of claim 5, wherein the Y- shaped helmet attachment structures comprise fabric or molded plastic.

7. The helmet and adjustable chin strap assembly of any one of claims 1 to 6, wherein the chin strap comprises a single continuous strap with no buckle or other attachment feature configured to be positioned adjacent to a wearer’s chin.

8. The helmet and adjustable chin strap assembly of claim 7, wherein the helmet shell includes a channel, groove, or space configured to house or receive a portion of the chin strap when shortened or lengthened by the actuator.

9. The helmet and adjustable chin strap assembly of any one of claims 1 to 8, further comprising a pinion gear connected to or forming part of the chin strap at or near one of the two opposing ends and being positioned in or adjacent to the left side region or the right side region of the helmet shell.

10. The helmet and adjustable chin strap assembly of claim 9, wherein the actuator is a wheel configured to engage the pinion gear such that selectively rotating the actuator in a first direction shortens the chin strap and rotating the actuator in an opposite direction lengthens the chin strap.

11. The helmet and adjustable chin strap assembly of any one of claims 1 to 10, further comprising an anchor sleeve disposed in one of the left side region or the right side region and configured to receive an end of the chin strap opposite an end of the chin strap operably connected to the actuator.

12. The helmet and adjustable chin strap assembly of claim 11, further comprising a second anchor sleeve configured to receive the end of the chin strap operably connected to the actuator, wherein the actuator passes through the second anchor sleeve to maintain communication with chin strap.

13. The helmet and adjustable chin strap assembly of any one of claims 1 to

12, wherein the actuator is removably attached to the helmet shell such that removal of the actuator detaches the end of the chin strap operably connected to the actuator from the helmet shell and facilitate installation and removal of the helmet shell to and from the wearer’s head.

14. The helmet and adjustable chin strap assembly of any one of claims 1 to

13, wherein an end of the chin strap opposite to the end attached to the actuator is removably attached to the helmet shell such that detaching that end of the chin strap from the helmet shell facilitates installation and removal of the helmet shell to and from the wearer’ s head

15. The helmet and adjustable chin strap assembly of any one of claims 1 to

14, wherein the chin strap comprises webbing and padding on at least a portion of the chin strap.

16. The helmet and adjustable chin strap assembly of any one of claims 1 to

15, wherein the actuator comprises a lock configured to temporarily lock the actuator and prevent changes in the length of the chin strap while locked.

17. A helmet and adjustable fit system assembly, comprising: a helmet shell configured to at least partially cover a wearer’s head, wherein the helmet shell includes: an outer component and an inner component; a front and a back; and a left side region and a right side region; and an adjustable fit system including: a fit strap configured to engage a wearer’s head and having two opposing ends, a first end configured to attach to the left side region and a second end configured to attach to the right side region; and an actuator configured to attach to the left or right side region of the helmet shell and be operably connected to the fit strap so that actuating the actuator selectively increases or decreases a length of the fit strap relative to the wearer’s head in order to selectively loosen or tighten the fit strap, respectively.

18. The helmet and adjustable fit system assembly of claim 17, wherein the actuator comprises a slider, detent, spring pump, pawl and ratchet, wheel, or other means for selectively increasing or decreasing the length of the fit strap.

19. The helmet and adjustable fit system assembly of claim 17 or 18, wherein the actuator is attached to the outer component of the helmet shell at a first side region of the helmet shell and operably attached to one of the opposing ends of the elongated fit element, with the opposing end of the elongated fit element being attached to an opposite side region of the helmet shell.

20. The helmet and adjustable fit system assembly of any one of claims 17 to

20, wherein the fit strap comprises a single continuous strap with actuator configured to be positioned adjacent to the back of the wearer’s head.

21. The helmet and adjustable fit system assembly of any one of claims 17 to

21, wherein the helmet shell includes a channel, groove, or space configured to house or receive a portion of the fit strap when shortened or lengthened by the actuator.

22. The helmet and adjustable fit system assembly of any one of claims 17 to 21, further comprising a pinion gear connected to or forming part of the fit strap at or near one of the two opposing ends and being positioned in or adjacent to the left side region or the right side region of the helmet shell.

23. The helmet and adjustable fit system assembly of claim 22, wherein the actuator is a wheel configured to engage the pinion gear such that selectively rotating the actuator in a first direction shortens the fit strap and rotating the actuator in an opposite direction lengthens the fit strap.

24. The helmet and adjustable fit system assembly of any one of claims 17 to 23, further comprising an anchor sleeve disposed in one of the left side region or the right side region and configured to receive an end of the fit strap opposite an end of the fit strap operably connected to the actuator.

25. The helmet and adjustable fit system assembly of claim 24, further comprising a second anchor sleeve configured to receive the end of the fit strap operably connected to the actuator, wherein the actuator passes through the second anchor sleeve to maintain communication with the fit strap.

26. The helmet and adjustable fit system assembly of any one of claims 17 to 25, wherein the fit strap comprises webbing and padding on at least a portion of the fit strap.

27. An adjustable fit system for use with a protective helmet, comprising: a fit strap configured to engage a wearer’s head and having two opposing ends, a first end configured to attach to a left side region of a helmet shell and a second end configured to attach to a right side region a helmet shell; and an actuator configured to attach to the left or right side region of a helmet shell and be operably connected to the fit strap so that actuating the actuator selectively increases or decreases a length of the fit strap relative to the wearer’s head in order to selectively loosen or tighten the fit strap, respectively.

28. The adjustable fit system of claim 27, wherein the actuator comprises a slider, detent, spring pump, pawl and ratchet, wheel, or other means for selectively increasing or decreasing the length of the elongated fit element.

29. The adjustable fit system of claims 27, further comprising a pinion gear attached to or forming part of the fit strap and that is engaged by the actuator, which is a rotatable wheel.

30. The adjustable fit system of any one of claims 27 to 29, wherein the fit strap is configured to at least partially encircle a wearer’s head during use.

31. The adjustable fit system of any one of claims 27 to 30, further comprising: a first duct configured to receive a first end of the fit strap and permit the first end of the fit strap to slide freely through a length of the first duct along an inclined plane; and a second duct configured to receive a second end of the fit strap and permit the second end of the fit strap to slide freely through a length of the second duct along an inclined plane.

32. The adjustable fit system of claim 31, wherein at least one of the first or second ducts comprises a one-way push-to-connect slot configured to receive and retain one of the opposing ends of the elongated fit element.

33. The adjustable fit system of claim 31 or 32, wherein the first and second ducts are configured to be inserted into corresponding spaces within a protective helmet.

34. The adjustable fit system of any one of claims 31 to 33, further comprising a first housing defining the first duct and a second housing defining the second duct, wherein each housing is configured to be attached to or embedded within a protective helmet.

35. The adjustable fit system of any one of claims 27 to 34, further comprising first and second anchor arms configured to connect the elongated fit element to an interior portion of a protective helmet.

36. A combined adjustable chin strap and fit system with separate dedicated actuators for use with a protective helmet, comprising: a chin strap having two opposing ends, a first end configured to attach to a left side region and a second end configured to attach to a right side region of a helmet shell; a chin strap actuator configured to attach to a side region of the helmet shell and be operably connected to the first or second end of the chin strap so that actuating the actuator selectively increases or decreases a length of the chin strap relative to the left and right side regions of the helmet shell in order to selectively loosen or tighten the chin strap, respectively; a fit strap configured to engage a wearer’s head and having two opposing ends, a first end configured to attach to the left side region and a second end configured to attach to the right side region the helmet shell; and a fit actuator configured to attach to a side region of a helmet shell and be operably connected to the fit strap so that actuating the actuator selectively increases or decreases a length of the fit strap relative to the wearer’s head in order to selectively loosen or tighten the fit strap, respectively.

37. The combined adjustable chin strap and fit system of claim 35, further comprising a first housing and a second housing, wherein the first housing contains a first duct for receiving a portion of the chin strap and the second housing contains a second duct for receiving a portion of the fit strap.

38. The combined adjustable chin strap and fit system of claim 36 or 37, further comprising a truss pair, wherein each truss of the truss pair is configured to support at least a portion of a length of the chin strap and the fit strap.

39. The combined adjustable chin strap and fit system of any one of claims 36 to 38, wherein the at least a portion of the chin strap is of a padded or woven material and at least a portion of the fit strap is of a padded or woven material.

40. A protective helmet comprising a helmet shell and the combined adjustable chin strap and fit system of any one of claims 36 to 39.

41. An integrated adjustable chin strap and fit system with a single actuator for use with a protective helmet, comprising: a chin strap portion having two opposing ends, a first end configured to attach to a left side region and a second end configured to attach to a right side region of a helmet shell; a fit strap portion configured to engage a wearer’s head and having two opposing ends, a first end configured to attach to the left side region of a helmet shell and a second end configured to attach to the right side region a helmet shell, wherein the first end or the second end of the chin strap portion is connected to the first end or the second end of the fit strap portion to form a continuous chin/fit strap; and an actuator configured to attach to a side region of a helmet shell and be operably connected to at least one of the chin strap portion or fit strap portion so that actuating the actuator selectively increases or decreases a length of the continuous chin/fit strap in order to selectively loosen or tighten the continuous chin/fit strap, respectively.