Abstract
A helmet suspension system for use with a helmet shell is provided. The system includes a circular strap barrier configured to encircle a wearer's head below the apex and attached to the helmet shell via one or more shell-connecting straps. A first set of angled straps is connected to the helmet shell and to the circular strap barrier through one or more net-connecting straps, each angled strap forming an arch with one face in contact with the wearer's head. The angled straps act as chords connecting two points on the helmet shell without passing through a central intersection node to enhance tensile resistance to lateral and top-of-head impacts. In some embodiments, a second set of angled straps connects to the circular strap barrier to provide additional multidirectional support.
Claims
1-15. (canceled)
16. A helmet suspension system for use with a helmet shell, the suspension system comprising: a circular strap barrier (12) configured to encircle a wearer's head below an apex of the head; wherein the circular strap barrier (12) is attached to a helmet shell via one or more shell-connecting straps (20b); a first set of angled straps (13b) connected to the helmet shell, wherein each angled strap in the first set of angled straps (13b) forms an arch having one face in contact with the wearer's head, and wherein each angled strap in the first set of angled straps (13b) is connected to the circular strap barrier via one or more net-connecting straps (20aI, 20aII); and wherein each angled strap in the first set of angled straps acts as a chord connecting two points on the helmet shell without passing through a central intersection node, thereby enhancing tensile resistance to lateral and top-of-head impacts.
17. The helmet suspension system of claim 15, further comprising a second set of angled straps (13a) connected to the circular strap barrier wherein each angled strap in the second set of angled straps (13a) forms an arch having one face in contact with the wearer's head, and wherein each angled strap in the second set of angled straps (13a) acts as a chord connecting two points on a circumference of the circular strap barrier (12).
18. The helmet suspension system of claim 15, wherein the one or more shell-connecting straps connect the circular strap barrier to the helmet shell via attachment bars.
19. The helmet suspension system of claim 15, wherein the first set of angled straps comprises one or more attachment bars.
20. The helmet suspension system of claim 15, wherein the first set of angled straps comprises one or more elastomeric components.
21. The helmet suspension system of claim 15, wherein the one or more shell-connecting straps comprise one or more elastomeric components.
22. The helmet suspension system of claim 16, wherein the second set of angled straps comprise one or more elastomeric components.
23. A method of assembling a helmet suspension on a helmet shell, the method comprising: positioning a circular strap barrier (12) to encircle the wearer's head below an apex of the head; attaching the circular strap barrier (12) to a helmet shell via one or more shell-connecting straps (20b); connecting a first set of angled straps (13b) to the helmet shell, each angled strap in the first set of angled straps (13b) forming an arch having one face in contact with the wearer's head; connecting each angled strap in the first set of angled straps (13b) to the circular strap barrier via one or more net-connecting straps (20al, 20all); and arranging each angled strap in the first set of angled straps (13b) to act as a chord connecting two points on the helmet shell without passing through a central intersection node, thereby enhancing tensile resistance to lateral and top-of-head impacts.
24. The method of claim 22, further comprising connecting a second set of angled straps (13a) to the circular strap barrier (12), each angled strap in the second set of angled straps (13a) forming an arch having one face in contact with the wearer's head, and arranging each angled strap in the second set of angled straps (13a) to act as a chord connecting two points on a circumference of the circular strap barrier (12).
25. The method of claim 22, wherein attaching the circular strap barrier to the helmet shell comprises connecting the circular strap barrier to the helmet shell via attachment bars.
26. The method of claim 22, wherein the first set of angled straps comprise one or more attachment bars.
27. The method of claim 22, wherein the first set of angled straps comprises one or more elastomeric components.
28. The method of claim 22, wherein the one or more shell-connecting straps comprise one or more elastomeric components.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0036] FIG. 1a shows an isometric view of a generic straight strap used in the helmet suspension assembly, illustrating the foundational structure of straps before they are configured for specific roles (e.g., circular strap barrier, angled strap, or traditional crossing strap).
[0037] FIG. 1b shows an isometric view of a circular strap barrier formed by an arrangement of straps and hangers, illustrating the horizontal plane used as a reference for the angle of angled straps.
[0038] FIG. 1c shows an isometric view of an angled strap in the shape of an arch, illustrating a plane defined by one of its longitudinal edges labeled Le2.
[0039] FIG. 1d shows a two-dimensional side view illustrating the angular relationship between a circular strap barrier strap (12) and an angled strap (13a).
[0040] FIG. 1e shows an isometric view illustrating the angular relationship between an angled strap (13a) and the circular strap barrier (12).
[0041] FIG. 2a shows an isometric view of a hanger (14), depicted as a rectangular cuboid with longer edges oriented vertically and shorter edges horizontally, showing both front and back sides in two sub-images.
[0042] FIG. 2b shows an isometric view of a hanger, labeled 14, with multiple slots for attaching angled straps to the circular strap barrier.
[0043] FIG. 3a shows a bottom view of a helmet shell, illustrating the inner circumference and the central intersection node, contrasted with a conventional four-point strap suspension.
[0044] FIG. 3b shows an isometric view of the central intersection node and a conventional four-point strap suspension, with the helmet shell omitted for clarity.
[0045] FIG. 4a shows a bottom view of an industrial helmet shell, illustrating the crush zone as a reference concept for the open space between the circular strap barrier and the helmet's inner circumference.
[0046] FIG. 4b shows a two-dimensional side view of a motorcycle helmet shell with the invented suspension system, illustrating the crush zone as a reference concept for the open space within the helmet.
[0047] FIG. 5a shows an isometric view of a first embodiment of a helmet suspension assembly, illustrating a net configuration optimized for lateral impact resistance.
[0048] FIG. 5b shows an exploded isometric view of the helmet suspension assembly shown in FIG. 5a, illustrating the arrangement of components
[0049] FIG. 6a shows an isometric view of a second embodiment of the helmet suspension assembly, illustrating a net configuration optimized for lateral impact resistance using a single strap for the circular strap barrier.
[0050] FIG. 6b shows an exploded isometric view of the helmet suspension assembly shown in FIG. 6a, illustrating the arrangement of components.
[0051] FIG. 7 shows an isometric view of a third embodiment of the helmet suspension assembly, illustrating a non-crossing arch configuration optimized for lateral impact resistance.
[0052] FIG. 8a shows an isometric view of a fourth embodiment of the helmet suspension assembly, illustrating a net configuration with eight elastomeric components integrated into angled strap assemblies via means of attachment, for enhanced tension-based impact absorption.
[0053] FIG. 8b shows an exploded isometric view of the helmet suspension assembly shown in FIG. 8a, illustrating the arrangement of components.
[0054] FIG. 9 shows an isometric view of a fifth embodiment of the helmet suspension assembly, illustrating a net configuration with four elastomeric components integrated into angled strap assemblies for enhanced tension-based impact absorption.
[0055] FIG. 10 shows an isometric view of a sixth embodiment of the helmet suspension assembly, illustrating a net configuration with elastomeric components configured as connecting straps for enhanced tension-based impact absorption.
[0056] FIG. 11a shows a bottom view of a seventh embodiment of the helmet suspension assembly which relates to a motorcycle helmet with an angled strap suspension, illustrating a net configuration optimized for impact resistance.
[0057] FIG. 11b shows an isometric exploded view of a motorcycle helmet with the angled strap suspension, illustrating the arrangement of components.
[0058] FIG. 11c shows an isometric view of the angled strap suspension for a motorcycle helmet, focusing on the suspension and attachment bars.
DETAILED DESCRIPTION OF THE DISCLOSURE
[0059] The helmet suspension assembly, designed for all helmets with an outer shell (e.g., military, sports, industrial, safety, motorcycle), comprises a flexible circular strap barrier 12 formed by a single strap or continuous arrangement of pliable straps, optionally with hangers 14, and angled straps 13, 13a, 13b, forming a fixed, non-adjustable net N1-7. Each angled strap comprises a longitudinal body having a first face F1 and a second face F2 inverse to the first face, a first end E1 and a second end E2 positioned distally from one another, and a first longitudinal edge L1 and an opposing second longitudinal edge L2, each extending from the first end E1 to the second end E2. The following embodiments describe distinct configurations of the net, each providing a tridimensional hold for lateral impact resistance via immediate tensile response, without designating any as preferred to maintain broad applicability. Each embodiment includes variations in materials (e.g., nylon, polyester, elastomers), strap widths (e.g., 2-3 cm), and attachment methods (e.g., sewing, buckling, attachment bars) to enable a person skilled in the art to practice the invention.
Embodiment 1: Circular Strap Barrier Arrangement With 4 Crossing Angled Straps (FIGS. 5a-b)
[0060] This embodiment features a circular strap barrier 12 formed by multiple pliable straps made of materials such as nylon or polyester, each approximately 2-3 cm wide. These pliable straps are connected to the circular strap barrier 12 via hangers 14 with lateral slots 14a and encircle the head below the apex of the head, defined as a cylindrical volume extruded from a 1-2 inch diameter circle centered at the geometric midpoint of the helmet's inner circumference 16. Four angled straps 13a, made of pliable materials (e.g., nylon or elastomers, 2-3 cm wide), are attached directly to the circular strap barrier using appropriate means of attachment, such as sewing or buckling. Each angled strap forms an arch at an orientation angle (alpha) between 15 and 70, with only one face contacting the head. These straps act as chords connecting two points on the circular strap barrier's circumference without passing through the central intersection node, and intersect below the apex of the head (e.g., at the forehead) to form a fixed, non-adjustable net, as shown in FIGS. 5a-5b. This configuration defines net N1 for the present embodiment. Unlike traditional crossing straps 15 (see FIG. 3) anchored at both ends to the helmet shell via traditional hangers 18, the angled straps provide immediate tensile response to lateral impacts. FIG. 5b shows an exploded view of the component arrangement. The net N1 enhances head retention and energy absorption through strap and shell deformation, with variations including elastic straps or direct stitching to the barrier.
Embodiment 2: Circular Strap Barrier with Single Strap and 4 Crossing Angled Straps (FIGS. 6a-b)
[0061] This embodiment features a circular strap barrier 12 formed by a single pliable strap, made of materials such as nylon or polyester, with a width of approximately 2-3 cm. The strap is threaded through hangers 14 configured as buckle-like guides with lateral slots 14a and encircles the head below the apex of the head. Four angled straps 13a, made of pliable materials (e.g., nylon or elastomers, 2-3 cm wide), are attached directly to the circular strap barrier using suitable means of attachment, such as sewing or buckling. Each angled strap forms an arch at an orientation angle (alpha) between 15 and 70, with only one face contacting the head. These straps act as chords, connecting two points on the circular strap barrier's circumference without passing through the central intersection node, and intersect below the apex of the head (e.g., at the forehead) to form a fixed, non-adjustable net, as illustrated in FIGS. 6a-6b. This configuration defines net N2 for the present embodiment. Unlike traditional crossing straps 15 anchored at both ends to the helmet shell, the angled straps provide immediate tensile response to lateral impacts. FIG. 6b shows an exploded view, illustrating the single strap threaded through hangers and the angled straps' attachment. The net N2 provides energy absorption through strap and shell deformation, with hangers enabling net removability. Variations include elastic straps or alternative attachment methods (e.g., adhesives).
Embodiment 3: Circular Strap Barrier Arrangement with 4 Non-Crossing Angled Straps (FIG. 7)
[0062] This embodiment features a circular strap barrier 12 formed by multiple pliable straps, made of materials such as nylon or polyester, each approximately 2-3 cm wide. The circular strap barrier is connected via hangers 14 with lateral slots 14a and encircles the head below the apex of the head. Four angled straps 13a, composed of pliable materials (e.g., nylon or elastomers, 2-3 cm wide), are attached directly to the circular strap barrier using suitable means of attachment, such as sewing or buckling. Each angled strap forms an arch at an orientation angle (alpha) between 15 and 70, with only one face contacting the head. These straps act as chords connecting two points on the circular strap barrier's circumference, without passing through the central intersection node. The angled straps are layered vertically at distinct heights and do not intersect with one another, collectively forming a fixed, non-adjustable net, as illustrated in FIG. 7. This configuration defines net N3 for the present embodiment. Unlike traditional crossing straps 15, the non-crossing angled straps provide immediate tensile response to lateral impacts. The net N3 enhances head retention and energy absorption through strap and shell deformation, with variations including elastic straps or alternative attachment methods (e.g., adhesives).
Embodiment 4: Angled Strap Suspension with 8 Elastomeric Components (FIGS. 8a-b)
[0063] This embodiment features an angled strap suspension comprising a circular strap barrier 12, formed by multiple pliable straps made of materials such as nylon or polyester, each approximately 2-3 cm wide. The circular strap barrier is connected via hangers 14 with lateral slots 14a and encircles the head below the apex of the head. Angled straps 13a, also made of pliable materials (e.g., nylon, 2-3 cm wide), include eight elastomeric components 22 (e.g., rubber or silicone strips, 1-2 cm wide), which are integrated into the straps by means of attachment such as sewing or overmolding. Each angled strap 13a forms an arch at an orientation angle (alpha) between 15 and 70, with only one face contacting the head. The straps act as chords connecting two points on the circular strap barrier's circumference, without passing through the central intersection node, and intersect below the apex of the head (e.g., at the forehead) to form a fixed, non-adjustable net, as shown in FIGS. 8a-8b. This configuration defines net N4 for the present embodiment. Unlike traditional crossing straps 15, the angled straps provide immediate tensile response to lateral impacts. FIG. 8b shows an exploded view of the component arrangement. The elastomeric components 22 enhance energy dissipation through deformation, operating in tension during lateral impacts, complementing strap and shell deformation within the crush zone 19. Variations include different elastomeric materials (e.g., silicone, polyurethane) or attachment methods (e.g., adhesives).
Embodiment 5: Angled Strap Suspension With 4 Elastomeric Components (FIG. 9)
[0064] This embodiment features an angled strap suspension comprising a circular strap barrier 12 formed by multiple pliable straps, made of materials such as nylon or polyester with a width of 2-3 cm, connected via hangers 14 with lateral slots 14a and encircling the head below the apex of the head. Angled straps 13a, made of pliable materials (e.g., nylon, 2-3 cm wide), include 4 elastomeric components 22 (e.g., rubber or silicone strips, 1-2 cm wide), integrated into the angled straps via means of attachment (e.g., sewing, overmolding). Each angled strap 13a forms an arch at a 15-70 orientation (alpha), with only one face contacting the head, acting as a chord connecting two points on the circular strap barrier's circumference without passing through the central intersection node. These angled straps intersect below the apex of the head (e.g., at the forehead), forming a fixed, non-adjustable net, as shown in FIG. 9. This configuration defines net N5 for the present embodiment. Unlike traditional crossing straps 15, the angled straps 13a provide immediate tensile response to lateral impacts. The elastomeric components 22 enhance energy dissipation through deformation, complementing strap and shell deformation within the crush zone (element 19). Variations include different elastomeric materials or attachment methods.
Embodiment 6: Angled Strap Suspension with Elastomeric Components as Connecting Straps (FIG. 10)
[0065] This embodiment features an angled strap suspension comprising a circular strap barrier 12, formed by multiple pliable straps made of materials such as nylon or polyester, each approximately 2-3 cm wide. The circular strap barrier is connected via hangers 14 with lateral slots 14a and encircles the head below the apex of the head. Angled straps 13a, made of pliable materials (e.g., nylon, 2-3 cm wide), are attached directly to the circular strap barrier 12. Each strap forms an arch at an orientation angle (alpha) between 15 and 70, with only one face contacting the head, and acts as a chord connecting two points on the circular strap barrier's circumference without passing through the central intersection node 17. The angled straps are arranged in a square-like configuration at the top of the head, with vertices directed toward the forehead, back, left ear, and right ear. Elastomeric components 22 (e.g., rubber or silicone, 1-2 cm wide) are configured as net-connecting straps 20aI, each extending between two angled straps to form the base of a triangular configuration located at the top of the head, as illustrated in FIG. 10. This configuration defines net N6 for the present embodiment. Unlike traditional crossing straps 15 anchored at both ends to the helmet shell, the net-connecting straps in net N6 stabilize the angled strap assembly, providing immediate tensile response to lateral impacts. The elastomeric components 22 restrict upward head movement during impacts, enhancing energy dissipation through deformation, complementing strap and shell deformation within the crush zone 19. Variations include different elastomeric materials or configurations (e.g., different strap counts).
Embodiment 7: High Impact Angled Strap Suspension (FIGS. 11a-c)
[0066] This embodiment features a high-impact net N7 comprising a circular strap barrier 12 formed by a single pliable strap, made of materials such as nylon or polyester, approximately 2-3 cm wide. The circular strap barrier 12 encircles the head below the apex of the head, positioned at the nose/eyes in the front and at the ears on the sides. The net N7 includes the following components: (1) angled straps 13b, made of pliable materials (e.g., nylon or elastomers, 2-3 cm wide), connected to the helmet shell via attachment bars 21 or hangers 14, including four straps extending side-to-side (ear to ear); (2) angled straps 13a, made of pliable materials (e.g., nylon, 2-3 cm wide), connected directly to the circular strap barrier, including two straps extending front-to-back (from the nose/eyes to the back of the head); (3) net-connecting straps 20aI and 20aII, made of pliable materials (e.g., nylon or elastomers, 1-2 cm wide), with net-connecting straps 20aI comprising two short straps, each attaching a front-to-back angled strap 13a to the circular strap barrier, and net-connecting straps 20aII comprising a central strap extending front-to-back, connecting the four side-to-side angled straps 13b to the front and back of the circular strap barrier to form a spine-like structure; and (4) shell-connecting straps 20b, made of pliable materials (e.g., nylon, 1-2 cm wide), running parallel to the outer surface of the circular strap barrier and attached to the helmet shell via attachment bars 21 at one end only-unlike traditional crossing straps 15.
[0067] Each angled strap forms an arch at an orientation angle (alpha) between 15 and 70, with only one face contacting the head, and acts as a chord connecting two points without passing through the central intersection node. These elements are interwoven to form a spherical net, as illustrated in FIGS. 11a-11c. The net N7 provides immediate tensile response to lateral and top-of-head impacts, enhancing head retention and energy absorption through deformation of the straps, helmet shell, and elastomeric components within the crush zone 19. Variations may include different strap materials, quantities, or attachment methods (e.g., direct stitching or buckling).
Operation of the Helmet Net
[0068] During an impact, the net, combining straps with distinct tensile strengths (e.g., elastic or textile), provides a tridimensional hold, stopping head movement toward the helmet shell, particularly for lateral impacts. Angled straps 13, 13a, 13b, acting as chords avoiding the central intersection node 17, ensure immediate tensile response, unlike conventional suspensions with node-crossing straps 15 that exhibit delayed tensile response due to slack or misalignment. This hold maximizes the crush zone 19 for energy absorption through shell deformation (primary), strap deformation (e.g., via elastic straps), optional elastomeric deformation 22, and optional impact-absorbing components, offering more engineering variables than conventional suspensions. Engineered angled crossings below the apex of the head (e.g., at the forehead) and the circular strap barrier 12, enhance stability, comfort, and ventilation without comfort pads. Hangers 14 enable net removability, and the net is compatible with retention systems.
Advantages of the Helmet Net
[0069] The subject disclosure simplifies construction, reduces weight, and enhances protection over conventional suspensions by using a fixed net with a circular strap barrier 12 and angled straps 13, 13a, 13b acting as chords, avoiding the central intersection node 17. The angled straps provide immediate tensile response to lateral impacts, unlike node-crossing straps 15 in M1 or modern 4-point/6-point suspensions, which exhibit delayed tensile response. The fixed net ensures superior head retention, and the combination of strap materials and elastomeric components 22 optimizes energy absorption. Increased contact points and lightweight straps improve comfort and ventilation without comfort pads, reducing cost. Hangers 14 enable removability, and compatibility with retention systems enhances practicality across all helmets with an outer shell.
[0070] The following is a detailed description of the drawings, which illustrate the embodiments of the disclosed helmet suspension system described above.
[0071] FIG. 1a illustrates an isometric view of a generic straight strap used in the helmet suspension assembly, representing the foundational structure from which various strap configurations may be derived (e.g., circular strap barrier, angled strap, or traditional crossing strap). The strap comprises a longitudinal body with a first end E1 and a second end E2 positioned distally opposite each other. Two longitudinal edges L1, L2 are shown on opposite sides of the strap, each extending between E1 and E2. These edges define the boundaries of the strap's planar surfaces or faces, which include a first face F1 and a second face F2, the latter being inverse to the former.
[0072] FIG. 1b shows an isometric view of a circular strap barrier formed by an arrangement of straps and hangers, illustrating the horizontal plane used as a reference for the angle of angled straps. Reference numeral 12 represents any strap within the arrangement of straps constituting the circular strap barrier. Reference numeral 14 is a hanger, forming part of the arrangement, connecting straps to each other and allowing the circular strap barrier to attach to a helmet shell and to other components. The longitudinal edge 12 of each strap 13 is labeled Le1, and the horizontal plane defined by the upper longitudinal edges Le1 of all straps in the circular strap barrier is labeled Hp, serving as the reference plane for angled strap orientation.
[0073] FIG. 1c shows an isometric view of an angled strap in the shape of an arch, illustrating a plane defined by one of its longitudinal edges labeled Le2. The angled strap is labeled 13, with one longitudinal edge labeled Le2. The plane formed by the longitudinal edge Le2 of the angled strap 13a is labeled Ap, depicted as a vertical plane, critical for defining the angle of the angled strap relative to the horizontal plane of the circular strap barrier Hp.
[0074] FIG. 1d shows a two-dimensional side view illustrating the angular relationship between a circular strap barrier strap 12 and an angled strap 13a. Reference numeral 12 is a strap within the circular strap barrier, and 13a is an angled strap. The longitudinal edge of the circular strap barrier strap 12 is labeled Le1, with a dotted line representing the horizontal plane Hp drawn adjacent to Le1. The longitudinal edge of the angled strap 13a is labeled Le2, with a dotted line representing the plane Ap drawn adjacent to Le2. The angle between the planes Hp and Ap is labeled alpha (), clarifying the engineered angle for tension-based energy absorption.
[0075] FIG. 1e shows an isometric view illustrating the angular relationship between an angled strap 13a and the circular strap barrier 12. Reference numeral 12 is a strap within the circular strap barrier arrangement, reference numeral 13a is an angled strap forming an arch, and reference numeral 14 is a hanger connecting the angled strap to the circular strap barrier. The longitudinal edge of the circular strap barrier 12 is labeled Le1, and the longitudinal edge of the angled strap 13a is labeled Le2. The angle formed between the plane (Ap) defined by the longitudinal edge Le2 of the angled strap and the horizontal plane (Hp) of the circular strap barrier is labeled alpha (), representing an engineered angle (e.g., 15-70) optimized for the angled strap's tension-based energy absorption.
[0076] FIG. 2a shows an isometric view of a hanger 14, depicted as a rectangular cuboid with longer edges oriented vertically and shorter edges horizontally, showing both front and back sides in two sub-images. The hanger is labeled 14. The front side includes a helmet attachment feature, labeled 14c, configured as an attachment feature such as a protruding connector that engages a corresponding slot in a helmet shell labeled 14d, enabling secure and removable attachment while maintaining separation between the circular strap barrier and the shell. The back side includes a headband attachment feature, 14b, configured as an attachment feature such as a protruding connector to secure a size-fitting or head-fitting headband to the inner side of the circular strap barrier. The actual geometry of features 14b, 14c and 14d may vary depending on the helmet shell or headband used. Two slots, each labeled 14a, traverse the hanger at opposite ends, configured to hold or guide straps 13 to interconnect and form the circular strap barrier arrangement or to thread a single strap forming the circular strap barrier, similar to an adjustment buckle.
[0077] FIG. 2b shows an isometric view of a hanger, labeled 14, with multiple slots for attaching angled straps to the circular strap barrier. The hanger includes four slots, each labeled 14a, with two slots located in the upper portion of the cuboid, configured to hold or guide angled straps 13a, and two slots on each side of the hanger, configured to hold or guide circular strap barrier straps 12 to construct the circular strap barrier. Slot sizes and shapes are general depictions, with geometries varying by helmet or suspension design. The helmet attachment feature 14c and headband attachment feature 14b, consistent with FIG. 2a, are general depictions, with geometries varying by helmet or headband.
[0078] FIG. 3a shows a bottom view of a helmet shell, illustrating the inner circumference and the central intersection node, contrasted with a conventional four-point strap suspension. The inner circumference of the helmet shell is depicted as an elliptical shape, labeled 16, representing a planar area at the base of the shell, approximating the largest possible ellipse within the helmet's inner circumference to identify the region where conventional straps typically intersect. The geometric center of this elliptical plane defines a circle with a diameter of approximately 1-2 inches, representing the base of the central intersection node 17. A conventional four-point strap suspension is shown, with two straps, each labeled 15, intersecting at the central intersection node 17, depicted as a circular area from this bottom perspective, illustrating how prior art suspensions cross this region, unlike the present invention's angled straps 13 that avoid it. Traditional hangers, labeled 18, are used to attach the conventional suspension to the helmet shell, distinguished from the subject disclosure's hangers 14 that include lateral slots 14a for constructing or guiding the circular strap barrier.
[0079] FIG. 3b shows an isometric view of the central intersection node and a conventional four-point strap suspension, with the helmet shell omitted for clarity. The central intersection node, labeled 17, is depicted as a cylindrical volume extruded from a 1-2 inch diameter circle at the geometric center of the elliptical plane 16 at the base of the helmet shell to the top of the inner surface of the shell, approximating the region where conventional strap suspensions intersect. Two conventional suspension straps, each labeled 15, intersect at the central intersection node 17, forming an X configuration typical of a four-point suspension, highlighting the contrast with the present invention's angled straps 13 that avoid this cylindrical volume. Traditional hangers 18, anchor the conventional suspension, distinguished from the invention's hangers 14. The elliptical plane 16 represents the base plane from which the central intersection node cylinder is extruded.
[0080] FIG. 4a shows a bottom view of an industrial helmet shell, illustrating the crush zone as a reference concept for the open space between the circular strap barrier and the helmet's inner circumference. Reference numeral 12 represents straps forming the circular strap barrier, and reference numeral 14 represents hangers attaching the straps to the helmet shell. The crush zone, labeled 19, is depicted as a dotted outline representing the lateral open space between the circular strap barrier and the helmet's inner circumference, illustrating the concept of a lateral crush zone that facilitates energy absorption during impact. The crush zone 19 is a general depiction, with its size and shape varying by helmet and suspension design and represents only a two-dimensional view of the three-dimensional open space between the head and the suspension.
[0081] FIG. 4b shows a two-dimensional side view of a motorcycle helmet shell with the invented suspension system, illustrating the crush zone as a reference concept for the open space within the helmet. Reference numeral 12 represents straps forming the circular strap barrier, reference numeral 13a represents angled straps, reference numeral 20b represents a connecting strap (with one or two straps labeled to maintain clarity), and reference numeral 21 represents attachment bars connecting the suspension to the helmet shell. The crush zone 19 is depicted as a dotted outline representing the open space above, in front of, and behind the head within the helmet, illustrating the concept of a three-dimensional crush zone that facilitates energy absorption during impact. The connecting strap 20b extends from the circular strap barrier to the helmet shell, attached to the circular strap barrier and to the attachment bars 21 via means of attachment, contributing to the crush zone 19 by maintaining separation between the suspension and the shell in a manner distinct from the hangers' 14 separation. The crush zone 19 is a general depiction, with its size and shape varying by helmet and suspension design and is shown in a motorcycle helmet to emphasize its applicability across different helmet types and the larger, more visible crush zone in such designs.
[0082] FIG. 5a illustrates an isometric view of a helmet suspension assembly (Embodiment 1), depicting net configuration N1, which is optimized for lateral impact resistance. Reference numeral 12 denotes multiple pliable straps that form the circular strap barrier, encircling the head below the apex of the head. Reference numeral 14 represents hangers that interconnect the straps and secure the circular strap barrier 12 to the helmet shell. Reference numeral 13a identifies angled straps that are attached directly to the circular strap barrier 12. These angled straps form arches with only one face contacting the head and intersect below the central intersection node (e.g., at the forehead), thereby creating a fixed, non-adjustable net structure.
[0083] FIG. 5b illustrates an exploded isometric view of the helmet suspension assembly corresponding to net configuration N1 shown in FIG. 5a, highlighting the arrangement of individual components. Reference numeral 12 denotes multiple pliable straps interconnected via hangers 14 to form the circular strap barrier, which encircles the head below the apex of the head. Hangers 14, equipped with slots (14a), serve to interconnect the straps and secure the suspension assembly to the helmet shell. Reference numeral 13a represents angled straps that are attached directly to the circular strap barrier 12. These angled straps form arches with only one face in contact with the head and intersect below the central intersection node (e.g., at the forehead), contributing to a fixed, non-adjustable net configuration.
[0084] FIG. 6a illustrates an isometric view of a helmet suspension assembly (Embodiment 2), showing net configuration N2, which is optimized for lateral impact resistance through the use of a single strap forming the circular strap barrier 12. The circular strap barrier 12 is formed by a single pliable strap threaded through a series of hangers 14, which are configured as buckle-like guides with slots (14a). These hangers secure the strap in position, allowing it to encircle the head below the apex of the head and affix the suspension assembly to the helmet shell. Reference numeral 13a represents angled straps, attached directly to the circular strap barrier 12, forming arches with only one face contacting the head and intersecting below the central intersection node (e.g., at the forehead) to create a fixed, non-adjustable net.
[0085] FIG. 6b illustrates an exploded isometric view of the helmet suspension assembly corresponding to net configuration N2 shown in FIG. 6a, highlighting the arrangement of its components. A single pliable strap, threaded through hangers 14, forms the circular strap barrier 12, which encircles the head below the apex of the head. Reference numeral 14 denotes hangers configured as buckle-like guides with slots (14a) that direct the strap along the desired path and secure the suspension to the helmet shell. Reference numeral 13a identifies angled straps attached directly to the circular strap barrier 12. These angled straps form arches with only one face in contact with the head and intersect below the central intersection node (e.g., at the forehead), thereby forming a fixed, non-adjustable net structure.
[0086] FIG. 7 illustrates an isometric view of a helmet suspension assembly corresponding to net configuration N3 (Embodiment 3), which features a non-crossing arch configuration optimized for lateral impact resistance. Reference numeral 12 denotes multiple pliable straps forming the circular strap barrier, which encircles the head below the apex of the head. Reference numeral 14 identifies hangers that interconnect the straps to form the circular strap barrier 12 and attach the net N3 to the helmet shell. Reference numeral 13a represents angled straps that are layered vertically at distinct heights relative to the circular strap barrier 12. These angled straps form arches with only one face in contact with the head and are configured to avoid intersecting with one another or with the central intersection node 17, thereby contributing to a fixed, non-adjustable net structure.
[0087] FIG. 8a shows an isometric view of a helmet suspension assembly corresponding to net configuration N4 (Embodiment 4), illustrating a net structure incorporating eight elastomeric components 22 integrated into angled strap assemblies for enhanced tension-based impact absorption. Reference numeral 12 denotes multiple straps forming the circular strap barrier, which encircles the head below the apex of the head. Reference numeral 14 identifies hangers that connect the multiple straps to form the circular strap barrier and secure the suspension assembly to the helmet shell. Reference numeral 13 represents angled strap assemblies, each comprising one or more straps and elastomeric components 22, attached to the circular strap barrier 12. These angled strap assemblies form arches with only one face in contact with the head and intersect below the central intersection node 17, such as at the forehead. Reference numeral 22 identifies elastomeric components, such as strips of elastomeric or elastic material, integrated into each angled strap assembly 13 by attaching strap material to each end of the elastomeric component. These components are dimensioned similarly to the straps to maintain visual and structural consistency and are configured to operate in tension to enhance energy absorption and dissipate impact forces. The illustrated configuration is exemplary, and variations in the quantity and arrangement of straps and elastomeric components are possible, as shown in subsequent figures.
[0088] FIG. 8b shows an exploded isometric view of the helmet suspension assembly corresponding to net configuration N4 (Embodiment 4) shown in FIG. 8a, illustrating the arrangement of components. Reference numeral 12 denotes multiple straps that interconnect via hangers to form the circular strap barrier, which encircles the head below the apex of the head. Reference numeral 14 identifies hangers with slots 14a configured to guide and interconnect the multiple straps 12 and attach the suspension to the helmet shell. Reference numeral 13 represents angled strap assemblies, each comprising one or more straps and elastomeric components 22, attached to the circular strap barrier 12. These assemblies form arches with only one face in contact with the head and intersect below the central intersection node, such as at the forehead. Reference numeral 22 denotes elastomeric components, such as strips of elastomeric or elastic material, integrated into each angled strap assembly 13 by attaching strap material to each end of the elastomeric component to facilitate connection to the circular strap barrier. The elastomeric components 22 are dimensioned similarly to the straps for consistent appearance and are configured to operate in tension to enhance energy absorption and dissipate impact forces. The configuration shown is illustrative, and the order and quantity of straps and elastomeric components may vary in other embodiments, as presented in subsequent figures.
[0089] FIG. 9 shows an isometric view of a helmet suspension assembly corresponding to net configuration N5 (Embodiment 5), illustrating a net configuration with four elastomeric components integrated into angled strap assemblies to enhance tension-based impact absorption. Reference numeral 12 denotes multiple straps forming the circular strap barrier, which encircles the head below the apex of the head. Reference numeral 14 represents hangers that interconnect the multiple straps 12 to form the circular strap barrier and attach the suspension to the helmet shell. Reference numeral 13a identifies angled strap assemblies, each comprising one or more straps and an elastomeric component 22, attached to the circular strap barrier 12. These assemblies form arches with only one face contacting the head and intersect below the central intersection node, such as at the forehead. Reference numeral 22 denotes elastomeric components, such as strips of elastomeric or elastic material, integrated into each angled strap assembly 13a by attaching strap material to one end of the elastomeric component to enable connection to the circular strap barrier. The elastomeric components are sized similarly to the straps for consistent appearance and are configured to operate in tension to enhance energy absorption and dissipate impact forces during impact. The configuration shown is illustrative, and the order and quantity of straps and elastomeric components may vary in other embodiments.
[0090] FIG. 10 shows an isometric view of a helmet suspension assembly corresponding to net configuration N6 (Embodiment 6), illustrating a net configuration with elastomeric components configured as connecting straps to enhance tension-based impact absorption. Reference numeral 12 denotes multiple straps forming the circular strap barrier, which encircles the head below the apex of the head. Reference numeral 14 represents hangers that connect the multiple straps 12 to form the circular strap barrier and attach the suspension to the helmet shell. Reference numeral 13a identifies angled straps, attached directly to the circular strap barrier 12, forming arches with only one face contacting the head and intersecting below the central intersection node, such as at the forehead. The angled straps are arranged in a square-like configuration at the top of the head, with vertices oriented toward the forehead, back of the head, left ear, and right ear relative to a wearer's head. Reference numeral 22 denotes elastomeric components, such as strips of elastomeric or elastic material, configured as connecting straps, each extending between two angled straps 13a to form the base of a triangular configuration in which the angled straps form the sides. These triangular formations are located at the top of the head. Reference numeral 23 indicates a dotted triangular outline that visually illustrates the triangular configuration formed by each elastomeric component and the two angled straps. The elastomeric components 22 are configured to restrict upward head movement during an impact event by operating in tension, resisting the strap net's tendency to open and the wearer's head from pushing through the angled straps, while absorbing energy through deformation.
[0091] FIG. 11a shows a bottom view of a motorcycle helmet H with an angled strap suspension corresponding to net configuration N7 (Embodiment 7), illustrating a configuration optimized for impact resistance. Reference numeral 12 denotes a single strap forming the circular strap barrier, which encircles the head below the apex of the head and is attached to the helmet H via connecting straps 20b and attachment bars 21. Reference numeral 21 indicates attachment bars configured to connect the circular strap barrier 12 to the helmet shell H, thereby securing the suspension system. Reference numeral 13 denotes angled strap assemblies, which include a first set of angled straps 13a connected directly to the circular strap barrier 12 and second set of angled straps 13b connected to the helmet shell via attachment bars 21 and to the circular strap barrier via connecting straps 20aII. These angled strap assemblies form arches with only one face contacting the head and include four straps extending side to side (from ear to ear) and two straps extending front to back (from the nose or eyes to the back of the head), interwoven to form a spherical net. The angled strap assemblies 13a and 13b function as chords connecting two points on the circumference of the circular strap barrier (straps 13a) or the inner circumference of the helmet shell (straps 13b) without crossing through the central point, thereby enhancing tensile resistance to lateral impacts. Reference numeral 20aI represents two short connecting straps, each attaching a front-to-back angled strap 13a to the side of the circular strap barrier 12. Reference numeral 20aII denotes a central connecting strap extending front to back, connecting the four side-to-side angled straps 13b between them and to the front and back portions of the circular strap barrier 12, forming a spine-like structure that reinforces the net. Reference numeral 20b indicates connecting straps running parallel to the outer surface of the circular strap barrier, attaching it to the sides of the helmet shell via attachment bars 21 and means of attachment, thereby enhancing lateral stability.
[0092] FIG. 11b shows an isometric exploded view of a motorcycle helmet H with the angled strap suspension corresponding to net configuration N7 (Embodiment 7), illustrating the arrangement of components. Reference numeral 12 denotes a single strap threaded to form the circular strap barrier, which encircles the head below the central intersection node (front at nose/eyes, sides at ears) and is attached to the helmet H via connecting straps 20b through attachment bars 21. Reference numeral 21 represents attachment bars, configured as buckle-like guides, that connect the circular strap barrier 12 to the helmet shell H via connecting straps 20b, thereby securing the suspension assembly. Reference numeral 13 identifies angled strap assemblies, comprising a first set of angled straps 13a connected directly to the circular strap barrier and a second set of angled straps 13b connected to the helmet shell via attachment bars 21. These angled straps form arches with only one face contacting the head and include four straps extending side to side (from ear to ear) and two straps extending front to back (from nose/eyes to the back of the head), interwoven to form a spherical net. The angled strap assemblies 13a and 13b act as chords, connecting two points on the circumference of the circular strap barrier or the inner circumference of the helmet shell without passing through the center, thereby enhancing tensile resistance to lateral and top-of-head impacts. Reference numeral 20aI represents two short connecting straps, each attaching a front-to-back angled strap 13a to the circular strap barrier. Reference numeral 20all denotes a central connecting strap extending front to back, connecting the four side-to-side angled straps 13b between them and to the front and back portions of the circular strap barrier, forming a spine-like structure reinforcing the net. Reference numeral 20b identifies connecting straps running parallel to the outer surface of the circular strap barrier, attaching it to the sides of the helmet shell via attachment bars 21 and other means of attachment, enhancing lateral stability. The exploded view further highlights the arched shape of the straps and their interconnections.
[0093] FIG. 11c shows an isometric view of the angled strap suspension N7 (Embodiment 7) for a motorcycle helmet, focusing on the suspension and attachment bars. Reference numeral 12 denotes a single strap forming the circular strap barrier, which encircles the head below the central apex of the head and is attached to the helmet H via connecting straps 20b through attachment bars 21. Reference numeral 21 represents attachment bars, configured as buckle-like guides that connect the circular strap barrier 12 to the helmet shell H, thereby securing the suspension. Reference numeral 13 identifies angled strap assemblies, comprising a first set of angled straps 13a connected directly to the circular strap barrier and a second set of angled straps 13b connected to the helmet shell via attachment bars 21. These angled straps form arches with only one face contacting the head and include four straps extending side to side (from ear to ear) and two straps extending front to back (from nose/eyes to the back of the head), interwoven to form a spherical net. The angled strap assemblies 13a and 13b act as chords, connecting two points on the circumference of the circular strap barrier (straps 13a) or the inner circumference of the helmet shell (straps 13b) without passing through the center, thereby enhancing tensile resistance to top-of-head and lateral impacts. Reference numeral 20aI denotes two short connecting straps, each attaching a front-to-back angled strap 13a to the circular strap barrier 12. Reference numeral 20aII identifies a central connecting strap extending front to back, connecting the four side-to-side angled straps 13b between them and to the front and back of the circular strap barrier 12 (on opposite sides), forming a spine-like structure that reinforces the net. Reference numeral 20b represents connecting straps running parallel to the outer surface of the circular strap barrier 12, attaching the circular strap barrier to the sides of the helmet shell via attachment bars 21 and other means of attachment, enhancing lateral stability. This figure provides a close-up view of the net's detailed structure.
[0094] The embodiments described herein are presented by way of example and are not intended to be limiting. It will be understood by those skilled in the art that various modifications, variations, and equivalents may be made without departing from the scope and spirit of the invention as defined by the appended claims. Features described in connection with any particular embodiment may be combined with those of other embodiments without departing from the scope of the disclosure.
[0095] All of the patents, patent applications, and publications recited herein, and in the Declaration attached hereto, if any, are hereby incorporated by reference as if set forth in their entirety herein. All, or substantially all, the components disclosed in such patents may be used in the embodiments of the subject disclosure, as well as equivalents thereof. The details in the patents, patent applications, and publications incorporated by reference herein may be considered to be incorporable at applicant's option, into the claims during prosecution as further limitations in the claims to patentable distinguish any amended claims from any applied prior art.
