Rapid-entry shoe having upper gap

Abstract

The present disclosure provides a rapid-entry shoe comprising a sole portion and an upper coupled to the sole portion, the upper comprising a heel portion. The rapid-entry shoe comprises a gap through at least a portion of the heel portion extending to a topline of the upper and having an open position to facilitate donning and doffing and a closed position, wherein the gap is biased toward the closed position. The shoe may further comprise an elastic element extending across the gap configured to bias the gap from the open position to the closed position. The shoe may further comprise a resilient bow extending to at least one side of the gap configured to bias the gap from the open position to the closed position. The shoe may further comprise a wedge configured to deflect into the gap and splay the gap open.

Description

529398.000028RAPID-ENTRY SHOE HAVING UPPER GAPCROSS REFERENCE TO RELATED PATENT APPLICATIONS

[0001] This application claims priority to U.S. Provisional Patent Application No. 63 / 730,090, filed December 10, 2024, the entire contents and disclosures of which are incorporated herein by reference.FIELD

[0002] The present disclosure relates to footwear, and more particularly to rapid-entry footwear having an upper gap.BACKGROUND

[0003] Whether due to inconvenience or physical limitations, donning and doffing of shoes, including tying or otherwise securing the same, may present difficulties to some individuals. Traditional footwear typically requires users to bend down, manipulate laces or fasteners, and use both hands to properly secure the shoe around their foot. This process can be time-consuming and challenging for individuals with mobility restrictions, arthritis, back problems, or other physical conditions that limit their ability to reach their feet or manipulate small fasteners.

[0004] Conventional shoe designs generally rely on lacing systems, straps, buckles, or other closure mechanisms that require manual adjustment each time the shoe is put on or removed. These traditional closure systems, while effective at securing the foot within the shoe during wear, can create barriers to quick and easy entry and exit from the footwear. The need to loosen and tighten these closures with each use adds time and complexity to the process of wearing shoes.

[0005] Various approaches have been developed to address these challenges in footwear design. Some solutions focus on alternative closure systems such as elastic laces, slip-on designs, or modified fastening mechanisms. Other approaches involve structural529398.000028modifications to the shoe upper or sole to facilitate easier entry. However, many existing solutions involve trade-offs between ease of entry and secure fit, or between convenience and the structural integrity of the footwear.

[0006] There remains a general need for footwear designs that can provide both rapid entry and exit capabilities while maintaining adequate support and retention of the foot during normal wear. Such designs would benefit individuals across various demographics and physical capabilities, making footwear more accessible and convenient for daily use.SUMMARY

[0007] 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 features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

[0008] According to an aspect of the present disclosure, a rapid-entry shoe is provided. The rapid-entry shoe comprises a sole portion. The rapid-entry shoe comprises an upper coupled to the sole portion, the upper comprising a heel portion. The rapid-entry' shoe comprises a gap through at least a portion of the heel portion of the upper, the gap extending to a topline of the upper and having an open position to facilitate donning and doffing of the rapid-entry shoe and a closed position, wherein the gap is biased toward the closed position.

[0009] According to other aspects of the present disclosure, the rapid-entry shoe may include one or more of the following features. The rapid-entry shoe may further comprise an elastic element extending across the gap and configured to bias the gap from the open position to the closed position. The elastic element may be elongated when the gap is in the open position. The rapid-entry shoe may further comprise a resilient bow extending to at least one side of the gap and configured to bias the gap from the open position to the closed position. The resilient bow may comprise at least one arm having ends coupled to the sole portion. The resilient bow may comprise a first arm and a second arm. The rapid-entry shoe may further comprise a wedge configured to deflect into the gap and splay the gap open529398.000028toward the open position. The wedge may be rotatably coupled to opposing sides of the sole portion. The wedge may comprise a yoke at an upper edge of the wedge to direct a heel. The wedge may comprise a window at a lower edge of the wedge to receive a heel.

[0010] According to another aspect of the present disclosure, a rapid-entry shoe is provided. The rapid-entry shoe comprises a sole portion. The rapid-entry shoe comprises an upper coupled to the sole portion, the upper comprising a heel portion. The rapid-entry shoe comprises a gap through the heel portion of the upper, the gap extending to a topline of the upper. The rapid-entry shoe comprises a wedge configured to extend into the gap and splay the gap open toward an open position.

[0011] According to other aspects of the present disclosure, the rapid-entry shoe may include one or more of the following features. The wedge may be rotatably coupled to opposing sides of the sole portion. The wedge may comprise a yoke at an upper edge of the wedge to direct a heel. The wedge may comprise a window at a lower edge of the wedge to receive a heel. The rapid-entry shoe may further comprise an elastic element extending across the gap and configured to bias the gap from the open position to a closed position.

[0012] According to another aspect of the present disclosure, a rapid-entry shoe is provided. The rapid-entry shoe comprises a sole portion. The rapid-entry shoe comprises an upper coupled to the sole portion, the upper comprising a heel portion. The rapid-entry shoe comprises a gap through the heel portion of the upper. The rapid-entry shoe comprises a resilient bow extending to at least one side of the gap and configured to bias the gap from an open position to a closed position.

[0013] According to other aspects of the present disclosure, the rapid-entry shoe may include one or more of the following features. The resilient bow may comprise at least one arm having ends coupled to the sole portion. The resilient bow may comprise a first arm and a second arm. The gap may extend to a topline of the upper. The rapid-entry shoe may further comprise an elastic element extending across the gap and configured to bias the gap from the open position to the closed position.529398.000028

[0014] The foregoing general description of the illustrative embodiments and the following detailed description thereof are merely exemplary’ aspects of the teachings of this disclosure and are not restrictive.BRIEF DESCRIPTION OF FIGURES

[0015] Non-limiting and non-exhaustive examples are described with reference to the following figures.

[0016] FIG. 1A illustrates a side sectional view of a rapid-entry’ shoe with a gap, according to aspects of the present disclosure.

[0017] FIG. IB illustrates a front elevation view of the rapid-entry shoe of FIG. 1A, according to aspects of the present disclosure.

[0018] FIG. 1C illustrates a rear elevation view of the rapid-entry shoe of FIG. 1A in an open configuration, according to aspects of the present disclosure.

[0019] FIG. 2A illustrates a side sectional view of a rapid-entry shoe with a wedge, according to aspects of the present disclosure.

[0020] FIG. 2B illustrates a side sectional view of the rapid-entry shoe of FIG. 2A, according to aspects of the present disclosure.

[0021] FIG. 2C illustrates a rear elevation view of the rapid-entry' shoe of FIG. 2A, according to aspects of the present disclosure.

[0022] FIG. 2D illustrates a rear elevation view of the rapid-entry' shoe of FIG. 2A in an open configuration, according to aspects of the present disclosure.

[0023] FIG. 3A illustrates a side sectional view of a rapid-entry shoe with a resilient bow, according to aspects of the present disclosure.

[0024] FIG. 3B illustrates a side sectional view of the rapid-entry shoe of FIG. 3A, according to aspects of the present disclosure.529398.000028

[0025] FIG. 3C illustrates a rear elevation view of the rapid-entry shoe of FIG. 3A, according to aspects of the present disclosure.

[0026] FIG. 3D illustrates a rear elevation view of the rapid-entry shoe of FIG. 3A, according to aspects of the present disclosure.

[0027] FIG. 4A illustrates a side sectional view of a rapid-entry shoe with a wedge, according to aspects of the present disclosure.

[0028] FIG. 4B illustrates a side sectional view of the rapid-entry shoe of FIG. 4A, according to aspects of the present disclosure.

[0029] FIG. 4C illustrates a rear elevation view of the rapid-entry shoe of FIG. 4A, according to aspects of the present disclosure.

[0030] FIG. 4D illustrates a rear elevation view of the rapid-entry shoe of FIG. 4A, according to aspects of the present disclosure.

[0031] FIG. 5A illustrates a side sectional view of a rapid-entry shoe with a pivotable wedge, according to aspects of the present disclosure.

[0032] FIG. 5B illustrates a cross-sectional view of the rapid-entry shoe of FIG. 5A, according to aspects of the present disclosure.

[0033] FIG. 5C illustrates a rear elevation view of the rapid-entry shoe of FIG. 5A, according to aspects of the present disclosure.

[0034] FIG. 5D illustrates a rear elevation view of the rapid-entry shoe of FIG. 5A in an open configuration, according to aspects of the present disclosure.

[0035] FIG. 6A illustrates a side sectional view of a rapid-entry shoe with a pivotably coupled wedge, according to aspects of the present disclosure.

[0036] FIG. 6B illustrates a side sectional view of the rapid-entry’ shoe of FIG. 6 A, according to aspects of the present disclosure.

[0037] FIG. 6C illustrates a rear elevation view of the rapid-entry shoe of FIG. 6A, according to aspects of the present disclosure.529398.000028

[0038] FIG. 6D illustrates a rear elevation view of the rapid-entry shoe of FIG. 6A in an open configuration, according to aspects of the present disclosure.

[0039] FIG. 7 A illustrates a side sectional view of a rapid-entry shoe with an elastic element, according to aspects of the present disclosure.

[0040] FIG. 7B illustrates a rear elevation view of the rapid-entry shoe of FIG. 7A in a closed configuration, according to aspects of the present disclosure.

[0041] FIG. 7C illustrates a rear elevation view of the rapid-entry shoe of FIG. 7A in an open configuration, according to aspects of the present disclosure.DETAILED DESCRIPTION

[0042] The following description sets forth exemplary aspects of the present disclosure. It should be recognized, however, that such description is not intended as a limitation on the scope of the present disclosure. Rather, the description also encompasses combinations and modifications to those exemplary aspects described herein.

[0043] In describing example embodiments of the rapid-entry footwear, certain directional terms may be used. By way of example, terms such as "right," "left," "medial," "lateral," "front," "back," "forward," "backward," "rearward," "top," "bottom," "upper," "lower," "up," "down," and the like may be used to describe example embodiments of the rapid-entry footwear. These terms should be given meaning according to the manner in which the rapid-entry footwear is most typically designed for use, with the rapid-entry footw'ear on a user's foot and with the user's shod foot disposed on or ready for placement on an underlying surface. Thus, these directions may be understood relative to the rapid-entry footwear in such use. Similarly, as the rapid-entry footw'ear is intended primarily for use as footwear, terms such as "inner," "inward," "outer," "outward," "innermost," "outermost," "inside," "outside," and the like should be understood in reference to the rapid-entry’ footwear's intended use, such that inner, inward, innermost, inside, and the like signify relatively closer to the user's foot, and outer, outward, outermost, outside, and the like signify relatively farther from the user's foot when the rapid-entry footwear is being used for its intended purpose.529398.000028Notwithstanding the foregoing, if the foregoing definitional guidance is contradicted by an individual use herein of any of the foregoing terms, the term should be understood and read according to the definition that gives life and meaning to tire particular instance of the term.

[0044] As used herein, unless the context dictates otherwise, a "rapid-entry shoe" refers to an athleisure shoe, a casual shoe, a formal shoe, a dress shoe, a heel, a sports / athletic shoe (e.g., a tennis shoe, a golf shoe, a bowling shoe, a running shoe, a basketball shoe, a soccer shoe, a ballet shoe, etc.), a walking shoe, a sandal, a boot, or other suitable type of shoe. Additionally, a rapid-entry shoe can be sized and configured to be worn by men, women, or children.

[0045] As used herein, unless the context dictates otherwise, a "sole portion" of a rapid-entry shoe refers to an outsole or portions thereof, a midsole or portions thereof, an insole or portions thereof, a wedge or portions thereof, or other suitable structure disposed between and / or adjacent to the foregoing parts of a rapid-entry’ shoe, for example, an insole or an internal cushion.

[0046] As used herein, unless the context dictates otherwise, a "heel portion of an upper" refers to any rear portion of an upper, for example, a heel counter, heel cap, or backstrap, including a topline thereof.

[0047] As used herein, unless the context dictates otherwise, the term "topline" refers to the upper edge or opening of a shoe upper that defines the entry point for a foot.

[0048] As used herein, unless the context dictates otherwise, the term "gap" refers to an opening, slit, or separation in the upper that may extend through at least a portion of the heel portion of the upper.

[0049] As used herein, unless the context dictates otherwise, an "elastic element" refers to a component comprised of elastic material, such as a textile or synthetic material, that is capable of stretching and returning to its original shape.529398.000028

[0050] As used herein, unless the context dictates otherwise, a "resilient bow" refers to a structural element that is resiliently deformable and configured to return to its original shape after deformation,

[0051] As used herein, unless the context dictates otherwise, a "wedge" refers to a component configured to extend into a gap and facilitate opening of the gap.

[0052] Any reference to coupled, connected, attached or the like may be temporary’ or permanent, removeable or not, non-integral or integral, partial or full, and may be facilitated by one or more of adhesives, stitches, hook and loop fasteners, buttons, clips, grommets, zippers, magnets and other means known in the art or hereinafter developed.

[0053] As used herein, the transitional term "comprising", which is synonymous with "including," "containing," or "characterized by," is inclusive or open-ended and does not exclude additional, unrecited elements or method steps. The transitional phrase "consisting of" excludes any element, step, or ingredient not specified in the claim. The transitional phrase "consisting essentially of" limits the scope of a claim to the specified materials or steps "and those that do not materially affect the basic and novel characteristic(s)" of the claimed invention.

[0054] No claim limitation is intended to invoke 35 U.S.C. 112(f) or pre-AIA 35 U.S.C.112, sixth paragraph or the like unless it explicitly uses the term "means" and includes functional language.

[0055] The present disclosure relates to rapid-entry footwear that addresses challenges associated with donning and doffing shoes. Traditional footwear typically requires manual manipulation of laces, straps, or other fastening mechanisms to secure the shoe to a user's foot. This process may be time-consuming, inconvenient, or difficult, including and particularly for individuals with limited mobility, dexterity issues, or other physical constraints. Additionally, conventional shoe designs may require users to bend down or use their hands to properly position and secure the footwear, which can be problematic in various situations.529398.000028

[0056] Rapid-entry footwear technology provides a solution by incorporating a gapbased entry’ system that allows for hands-free or simplified donning and doffing of shoes. The gap-based system may create an expandable opening in the heel region or other regions bordering the foot opening of the shoe that can temporarily increase the size of the foot opening to accommodate easy entry of a user's foot. Once the foot is inserted, the gap may contract or close to provide secure retention of the foot within the shoe during normal wear.

[0057] The gap-based entry system may operate through various mechanisms that allow the gap to transition between an open position and a closed position. In the open position, the gap may expand to create a larger opening that facilitates foot insertion without requiring manual adjustment of traditional fastening systems. The expanded gap may provide sufficient clearance for the user's heel and foot to slide into the shoe with minimal resistance or effort.

[0058] In the closed position, the gap may contract to reduce the size of the opening, thereby providing secure retention of the foot within the shoe. Tire transition from the open position to the closed position may occur automatically through biasing mechanisms that urge the gap toward the closed configuration. This automatic closure may ensure that the shoe maintains proper fit and support during wear w ithout requiring additional user intervention.

[0059] The gap-based entry system may incorporate various components to facilitate the opening and closing functions. These components may work individually or in combination to provide the desired expansion and contraction characteristics. The system may be designed to accommodate different foot sizes and shapes while maintaining consistent performance across various use conditions.

[0060] The rapid-entry’ footwear technology may be applicable to various types of shoes, including athletic shoes, casual footwear, dress shoes, boots, and other footwear categories. The gap-based system may be integrated into different shoe constructions and materials while maintaining the aesthetic and functional characteristics expected from conventional footwear designs.529398.000028

[0061] Referring to FIG. 1A, a rapid-entry shoe 100 may comprise a sole portion 102 and an upper 104 coupled to the sole portion 102. The rapid-entry shoe 100 may be configured as various types of footwear to accommodate different use cases and user preferences. In some cases, the rapid-entry shoe 100 may be an athleisure shoe, a casual shoe, a formal shoe, a dress shoe, a heel, a sports / athletic shoe, a walking shoe, a sandal, or a boot. The rapid-entry shoe 100 may be sized and configured to be worn by men, women, or children, allowing for broad applicability across different user demographics.

[0062] The sole portion 102 may form the bottom structure of the rapid-entry shoe 100 and may provide support and cushioning for a user's foot during wear. In some cases, the sole portion 102 may include an outsole, a midsole, an insole, a wedge, or other suitable structure disposed between and / or adjacent to these parts. The sole portion 102 may be constructed from various materials such as rubber, foam, leather, or synthetic materials to provide appropriate durability, traction, and comfort characteristics.

[0063] The upper 104 may be coupled to the sole portion 102 and may define the primary structure that surrounds and contains a user's foot. As shown in FIG. 1 A, the upper 104 may comprise several distinct portions that serve different functional roles. The upper 104 may include a heel portion 104A positioned at a rear region of the rapid-entry shoe 100. The heel portion 104A may be configured to surround and support a user's heel during wear.

[0064] With continued reference to FIG. 1A, the upper 104 may further comprise a dorsum portion 104B positioned over a top region of a user's foot. In some embodiments, the dorsum portion 104B may include a tongue or a vamp portion. The upper 104 may also include a toe portion 104C positioned at tire front region of the rapid-entry shoe 100. The toe portion 104C may be configured to accommodate and protect a user's toes during wear.

[0065] Referring to FIG. 1B, the upper 104 may additionally comprise a medial portion 104D and a lateral portion 104E. The medial portion 104D may be positioned on an inner side of the rapid-entry shoe 100, while the lateral portion 104E may be positioned on an outer side of the rapid-entry shoe 100. These portions may work together to provide lateral support and stability for a user's foot during various activities.529398.000028

[0066] As further shown in FIG. IB, the rapid-entry shoe 100 may include a gap 106 that extends through at least a portion of the upper 104 (e.g., heel portion 104A, although it is understood that the gap 106 may be positioned at any portion of the upper 104 defining a topline 108). The gap 106 may extend to a topline 108 of the upper 104, creating an opening that facilitates entry and exit of a user's foot. The gap 106 may have an open configuration to facilitate donning and doffing of the rapid-entry shoe 100 and a closed configuration for secure retention during wear. The gap 106 may be biased toward the closed position to provide automatic closure after foot insertion.

[0067] Referring to FIG. 1C, the gap 106 may be configured to expand when transitioning to the open configuration, creating a larger opening that accommodates easy foot entry. The expanded configuration may temporarily increase the effective size of the foot opening without requiring manual adjustment of traditional fastening mechanisms. When in the closed position, the gap 106 may contract to provide secure fit and retention of the user's foot within the rapid-entry shoe 100,

[0068] The gap 106 may be configured in various structural arrangements to accommodate different design requirements and functional characteristics. With reference to FIG. IB, the gap 106 may extend through the heel portion 104A and may terminate at the topline 108 of the upper 104. This configuration may create a direct pathway from the topline 108 through the heel portion 104A, allowing for expansion of the foot opening during donning and doffing operations,

[0069] In some cases, the gap 106 may have a linear profile when in a closed position. The linear profile may present as a straight slit or opening that extends vertically through the heel portion 104A. When transitioning to an open position, the gap 106 may adopt a triangular profile, creating a V-shaped or wedge-shaped opening that provides increased clearance for foot insertion. The triangular configuration may allow for progressive expansion of the opening from a narrow point at the bottom to a wider opening at the topline529398.000028

[0070] Alternatively, the gap 106 may have a rectangular profile in the closed position. In this configuration, the gap 106 may present as a rectangular opening or slot through the heel portion 104A. When transitioning to the open position, the gap 106 may adopt a trapezoidal profile, where the opening expands to create a wider aperture while maintaining defined geometric boundaries. The trapezoidal configuration may provide controlled expansion characteristics that accommodate different foot sizes and shapes.

[0071] Referring to FIG. 1C, the gap 106 may be implemented as a slit configuration that extends through the heel portion 104A. The slit may have a linear configuration that presents as a straight cut or opening through the material of the upper 104. In some cases, the slit may have a zig-zag configuration that follows a non-linear path through the heel portion 104A. The zig-zag configuration may provide enhanced flexibility and expansion characteristics while maintaining structural integrity of the upper 104.

[0072] In some embodiments, the gap 106 may be configured as a cutout that removes material from the heel portion 104A to create the opening. The cutout may have a u-shaped configuration that creates a curved opening extending from the topline 108 downward into the heel portion 104A. Alternatively, the cutout may have a v-shaped configuration that creates an angular opening with defined edges. The cutout configurations may provide predetermined expansion patterns and may allow for controlled deformation of the upper 104 during opening and closing operations.

[0073] The gap 106 may also be implemented as a relatively weak or malleable portion within the heel portion 104A. The weak portion may be created through material modifications that reduce the structural strength or stiffness of the upper 104 in a localized region. In some cases, the weak portion may be achieved through dimensional modifications, such as reduced material thickness or altered material density. The weak portion may be configured to preferentially deform or separate when force is applied, creating the gap 106 opening while maintaining the overall integrity of the upper 104 structure,

[0074] Referring to FIG. 1A, the rapid-entry shoe 100 may further comprise an elastic element 110 extending across the gap 106 (see FIG. IB). The elastic element 110 may be529398.000028configured to bias the gap 106 from the open position to the closed position, providing automatic closure functionality that enhances the user experience during donning and doffing operations. The elastic element 110 may be positioned proximate to the topline 108 of the upper 104, allowing the elastic element 110 to span across the gap 106 in the heel portion 104A.

[0075] With continued reference to FIG. 1A, the elastic element 110 may be comprised of elastic material, such as a textile or synthetic material, that is capable of stretching and returning to its original shape. The elastic element 110 may provide restoring force that urges the gap 106 toward the closed position after the gap 106 has been expanded during foot insertion. This restoring force may ensure that the rapid-entry shoe 100 maintains proper fit and retention characteristics during normal wear without requiring manual adjustment by the user.

[0076] As shown in FIG. IB, the elastic element 110 may extend horizontally across the gap 106, creating a bridge-like connection between opposing sides of the heel portion 104A. Tire elastic element 110 may be configured to accommodate the expansion and contraction of the gap 106 while maintaining continuous connection across the opening. During normal wear, when the gap 106 is in the closed position, the elastic element 110 may remain in a relaxed or minimally stretched state.

[0077] Referring to FIG. 1C, when the gap 106 transitions to the open position, the elastic element 110 may become elongated as the opposing sides of the heel portion 104A separate to create the expanded opening. The elongation of the elastic element 110 may create stored elastic energy that provides the biasing force to return the gap 106 to the closed position. The degree of elongation may correspond to the extent of gap 106 expansion, with greater expansion resulting in increased elongation and stronger restoring force.

[0078] The elastic element 110 may be implemented in various configurations relative to the upper 104 structure. In some cases, the elastic element 110 may be distinct from the upper 104, comprising a separate component that is attached or coupled to the upper 104 material. The distinct configuration may allow for independent selection of elastic properties and529398.000028materials that are optimized for the biasing function without being constrained by the material requirements of the upper 104.

[0079] Alternatively, the elastic element 110 may be continuous with the upper 104, utilizing the same material as the upper 104. In this configuration, the elastic element 110 may be formed as an integral part of the upper 104 structure, where a portion of the upper 104 material is configured to provide the elastic biasing function. The continuous configuration may simplify manufacturing processes and may provide seamless integration between the elastic element 110 and the surrounding upper 104 structure.

[0080] Referring to FIG. 2A, the elastic element 110 may be positioned on an interior or exterior surface of the upper 104. The positioning of the elastic element 110 may affect the aesthetic appearance and functional characteristics of the rapid-entry shoe 100. In some embodiments, the elastic element 110 may be concealed or hidden, either partially or fully, within the structure of the upper 104. The concealed configuration may maintain a conventional shoe appearance while providing the gap 106 (see FIGS. 2C-2D) biasing functionality.

[0081] With reference to FIG. 2B, the elastic element 110 may alternatively be visible on the exterior of the upper 104, where the elastic element 110 forms part of the external design aesthetic of the rapid-entry shoe 100. The visible configuration may allow the elastic element 110 to serve both functional and decorative purposes, contributing to the overall visual appeal of the footwear while providing the biasing mechanism.

[0082] As shown in FIG. 2C, the gap 106 may be concealed by a flap, covering, or elastic material that maintains the appearance of a continuous upper 104 surface. In some embodiments, the elastic element 110 may be coupled to the upper 104 along the length of the gap 106 and may act as a covering to conceal the gap 106, This covering function may prevent debris or moisture from entering through the gap 106 while maintaining the biasing functionality.529398.000028

[0083] Referring to FIG. 2D, the elastic element 110 may extend across the gap 106 in various orientations and configurations to accommodate different design requirements. The elastic element 110 may be configured as a single continuous element or may comprise multiple elastic components that work together to provide the biasing force. The configuration of the elastic element 110 may be selected based on the desired expansion characteristics, aesthetic requirements, and durability considerations.

[0084] With reference to FIG. 7A, the elastic element 110 may be integrated into the upper 104 structure in a manner that maintains the overall integrity and appearance of the rapid-entry shoe 100. The elastic element 110 may be positioned to provide biasing force while minimizing interference with other functional components of the rapid-entry shoe 100. The integration may be achieved through various attachment methods, including stitching, adhesive bonding, or mechanical fastening.

[0085] As illustrated in FIG. 7B and FIG. 7C, the elastic element 110 may demonstrate the transition between the closed and open configurations of the gap 106. In FIG. 7B, the gap 106 appears in the closed configuration with the elastic element 110 in a relaxed state. In FIG. 7C, the gap 106 appears in the open configuration with the elastic element 110 in an elongated state, demonstrating the stretching capability that provides the restoring force for automatic closure of the gap 106.

[0086] The elastic element 110 may be coupled to the upper 104 along various portions of the gap 106 perimeter to provide the biasing functionality. In some cases, the elastic element 110 may be coupled along the entire perimeter of the gap 106, creating a continuous elastic boundary along the perimeter of the gap 106. This complete perimeter coupling may provide uniform biasing force around the entire gap 106, ensuring consistent closure characteristics regardless of the direction or magnitude of expansion and limit debris from entering into the rapid-entry shoe 100.

[0087] Alternatively, the elastic element 110 may be coupled along a substantial majority of the gap 106 perimeter. In this configuration, the elastic element 110 may extend around most of the gap 106 boundary while leaving certain portions uncoupled to accommodate529398.000028specific design requirements or functional considerations. The substantial majority coupling may provide adequate biasing force while allowing for localized variations in the closure behavior.

[0088] In some embodiments, the elastic element 110 may be coupled along the gap 106 perimeter toward the topline 108. This topline -oriented coupling may concentrate the elastic biasing force in the upper region of the gap 106, where the opening may experience the greatest expansion during foot insertion. The topline coupling may provide enhanced closure characteristics in the region most visible to the user while allowing for different mechanical properties in lower portions of the gap 106.

[0089] In some embodiments, tire elastic element 110 may be coupled along the gap 106 perimeter while excluding the topline 108 region. In this configuration, the elastic element 110 may extend around the sides and lower portions of the gap 106 boundary without extending to or across the topline 108. The elastic element 110 may be coupled to the upper 104 along the medial and lateral edges of the gap 106, and may extend downward from a position below the topline 108 toward the lower extent of the gap 106. This configuration may allow the topline 108 region to remain free of elastic material while still providing biasing force through the elastic element 110 positioned around the remainder of the gap 106 perimeter, The non-topline coupling may provide flexibility in the upper opening region while maintaining closure force through the elastic element 110 positioned along other portions of the gap 106.

[0090] The coupling of the elastic element 110 along the gap 106 perimeter may be achieved through various attachment methods, in some cases, the elastic element 110 may be stitched to the upper 104 material along the gap 106 edges, creating a secure mechanical connection that maintains the elastic properties during repeated expansion and contraction cycles. Alternatively, the elastic element 110 may be adhesively bonded to the upper 104, providing a continuous attachment that distributes stress evenly along the coupling interface.

[0091] The elastic element 110 may also facilitate localized deformation of the gap 106 to accommodate foot insertion without requiring global expansion of the upper 104. In some529398.000028cases, particularly where the gap 106 extends over a larger area, the elastic element 110 may expand outward in a localized region to create temporary clearance for the foot at specific contact points. This localized expansion may occur as the heel or other portions of the foot press against the elastic element 110 during insertion, causing the elastic element 110 to deform outward at the point of contact while the opposing sides of the upper 104 remain relatively stationary.

[0092] The localized deformation behavior may create a progressive expansion pattern where the elastic element 110 expands outward only at the immediate location where the foot applies pressure. As the heel moves further into the rapid-entry shoe 100 during donning, the previously expanded region of the elastic element 110 may immediately collapse back toward its original position, while a new region of the elastic element 110 expands outw ard to accommodate the advancing heel position. This dynamic expansion and collapse pattern may allow the foot to slide smoothly into the rapid-entry shoe 100 without requiring the entire gap 106 to open simultaneously.

[0093] The localized expansion capability of the elastic element 110 may provide enhanced comfort during donning operations by minimizing the overall distortion of the upper 104 structure. Rather than forcing the medial portion 104D and lateral portion 104E to separate significantly, the elastic element 110 may absorb the insertion forces through localized outward deformation. This localized response may reduce stress on the upper 104 material and may provide a more controlled entry experience for the user.

[0094] Referring to FIG. 1A, the rapid-entry shoe 100 may further comprise a resilient bow 112 extending to at least one side of the gap 106 and configured to bias the gap 106 from the open position to the closed position. The resilient boyv 112 may provide an alternative or supplementary biasing mechanism that works in conjunction with or independently from the elastic element 110 to ensure reliable closure of the gap 106 after foot insertion. Tire resilient bow 112 may be configured as a structural element that is resiliently deformable and configured to return to its original shape or configuration after deformation.529398.000028

[0095] With continued reference to FIG, 1 A, the resilient bow 112 may comprise at least one arm having ends 116 coupled to the sole portion 102. The coupling of the ends 116 to the sole portion 102 may provide a stable anchor point that allows the resilient bow 112 to generate biasing force when the gap 106 expands (see FIGS. 1B-1C). The ends 116 may be attached to the sole portion 102 through various methods, including mechanical fastening, adhesive bonding, or integration into the sole portion 102 structure during manufacturing.

[0096] As shown in FIG. IB, the resilient bow 112 may comprise a first arm 112A and a second arm 112B that work together to provide the biasing functionality. The first arm 112A and the second arm 112B may be configured as elongated curved elements that extend along the sides of the rapid-entry shoe 100. In some cases, the first arm 112A may be positioned at the medial portion 104D while the second arm 112B may be positioned at the lateral portion 104E, creating a symmetrical biasing arrangement that provides balanced closure force across the gap 106.

[0097] Referring to FIG. 1C, the first arm 112 A and the second arm 112B may be configured in an overlapping arrangement where the arms cross diagonally through the heel portion 104A. The overlapping configuration may create an X-shaped pattern when viewed from the rear of the rapid-entry shoe 100, with the first arm 112A extending from the medial portion 104D and the second arm 112B extending from the lateral portion 104E. The crossing arrangement may provide enhanced structural support and may distribute the biasing force more evenly across the gap 106 region.

[0098] With reference to FIG. 2A, the resilient bow 112 may be positioned within the upper 104 structure, where the first arm 112A and the second arm 112B follow the natural contours of the rapid-entry shoe 100 profile. The arms may be depicted with bold lines to distinguish them from other structural elements, and may be configured to provide biasing force while maintaining the overall aesthetic appearance of the rapid-entry shoe 100. The resilient bow 112 may be concealed within the upper 104 layers or may be visible as part of the external design.529398.000028

[0099] As illustrated in FIG. 2B, the resilient bow 112 may extend on both sides of the gap 106, with the first arm 112 A and the second arm 112B positioned to provide biasing force from multiple directions. The dual-arm configuration may ensure that the gap 106 receives consistent closure force and retention force regardless of the direction or magnitude of expansion during foot insertion. The ends 116 of both arms may be coupled to the sole portion 102 to provide stable anchoring for the biasing mechanism.

[0100] Referring to FIG. 2C, the resilient bow 112 may be configured with the first arm 112 A and the second arm 112B crossing diagonally through the heel portion 104A to form an X-shaped configuration. In some embodiments, the first arm 112A and the second arm 112B may not cross, providing alternative structural arrangements that accommodate different design requirements. The crossing or non-crossing configurations may be selected based on the desired biasing characteristics and the specific geometry of the rapid-entry shoe 100.

[0101] With reference to FIG. 2D, the resilient bow 112 may demonstrate the biasing functionality during gap 106 expansion. When the gap 106 transitions to the open position, the resilient bow 112 may deform to accommodate the increased separation between the medial portion 104D and the lateral portion 104E. The deformation may create stored elastic energy within the first arm 112A and the second arm 112B that provides the restoring force to return the gap 106 to the closed position.

[0102] As shown in FIG. 3 A, the resilient bow 112 may be configured in a single-arm arrangement where the resilient bow 112 comprises an elongated curved element that extends exclusively to one side of the gap 106 (see FIG. 3C-3D). The single-arm configuration may provide asymmetric biasing force that accommodates specific design requirements or user preferences. The single arm may be positioned on either the medial portion 104D or the lateral portion 104E (see FIG. 3C-3D), depending on the desired closure characteristics.

[0103] Referring to FIG. 3B, the single-arm configuration of the resilient bow 112 may extend along one side of the rapid-entry shoe 100 while maintaining the biasing functionality. The single arm may follow the natural contours of the upper 104 and may be coupled to the529398.000028sole portion 102 through the ends 116, The single-arm arrangement may provide simplified manufacturing while maintaining adequate biasing force for gap 106 closure.

[0104] With reference to FIG. 3C, the resilient bow 112 may be positioned to extend on both sides of the gap 106 even in configurations where individual arms may be emphasized on particular sides. The resilient bow 112 may comprise elongated curved elements that cross diagonally through the heel portion 104A, providing biasing force that urges the gap 106 toward the closed position. The diagonal arrangement may enhance the structural support provided by the resilient bow 112.

[0105] As illustrated in FIG. 3D, the ends 116 of the resilient bow 112 may be coupled to the sole portion 102. and / or the upper 104, providing flexibility in the attachment configuration. In some embodiments, the ends 116 may be coupled exclusively to the sole portion 102, while in other embodiments, the ends 116 may be coupled to the upper 104 structure. Tire coupling arrangement may be selected based on the desired mechanical properties and the specific design requirements of the rapid-entry' shoe 100.

[0106] The resilient bow 112 may provide additional functional benefits beyond the biasing force for gap 106 closure. In some cases, the resilient bow 112 may prevent the heel portion 104A from folding under a user's heel during foot insertion or removal. The structural support provided by the resilient bow 112 may maintain the shape and integrity of the heel portion 104A, ensuring that the rapid-entry shoe 100 maintains proper form during the donning and doffing process.

[0107] The resilient bow 112 may be positioned in various configurations to accommodate different structural and functional requirements. In some embodiments, a first bow may be positioned on one of the medial portion 104D and the lateral portion 104E, while a second bow may be positioned on the other side. This dual-bow arrangement may provide balanced biasing force while allowing for independent adjustment of the mechanical properties on each side of the rapid-entry shoe 100.529398.000028

[0108] Alternatively, the first bow and the second bow may be configured to cross at the heel portion 104A, creating an intersection point that provides enhanced structural support. The crossing configuration may distribute stress effectively and may provide different biasing characteristics compared to non-crossing arrangements. In some embodiments, the first bow and the second bow may cross at both the heel portion 104A and at a forward portion of the upper 104, creating multiple intersection points that enhance the overall structural integrity of the biasing system.

[0109] The resilient bow 112 may be constructed from various materials that provide the desired elastic and structural properties. In some cases, the resilient bow 112 may be formed from spring steel, carbon fiber, or other materials that exhibit high strength and resilient deformation characteristics. The material selection may be based on the required biasing force, durability requirements, and compatibility with the overall construction of the rapid¬ entry shoe 100.

[0110] Referring to FIG. 2A, the rapid-entry shoe 100 may further comprise a wedge 118 positioned within the heel portion 104A and configured to extend into the gap and splay the gap open toward the open position. The wedge 118 may provide a mechanical actuation mechanism that facilitates expansion of the gap during donning operations, creating increased clearance for foot insertion without requiring manual manipulation by the user. The wedge 118 may be configured to pivot or deflect rearward toward and into the gap, acting to actuate the upper 104 to cause the upper 104 to deflect outward to open or expand the gap.

[0111] With continued reference to FIG. 2A, the wedge 118 may include a yoke 120 at an upper edge of the wedge 118. The yoke 120 may be configured to direct a heel during donning of the rapid-entry shoe 100, functioning as a shoe horn that guides the user's heel into proper position within the rapid-entry shoe 100. The yoke 120 may have a funnel-shaped configuration that creates a smooth transition surface for heel insertion, reducing friction and facilitating smooth entry of the foot into the rapid-entry shoe 100.

[0112] As further shown in FIG. 2A, the wedge 118 may also include a lower edge 122 positioned toward the sole portion 102. The lower edge 122 may provide a structural529398.000028foundation for the wedge 118 and may serve as a coupling point for attachment to other components of the rapid-entry shoe 100. In some embodiments, the lower edge 122 may include structure that allows the wedge 118 to deflect, pivot, or rotate relative to the sole portion 102 or the upper 104.

[0113] Referring to FIG. 2B, the wedge 118 may be configured to pivot or deflect rearward toward and into the gap, acting to actuate the upper 104 to cause the upper 104 to deflect outward to open or expand the gap. The pivoting motion of the wedge 118 may create a mechanical advantage that amplifies the opening force applied to the gap, ensuring reliable expansion even when the elastic element 110 or the resilient bow 112 provides significant biasing force toward the closed position.

[0114] With reference to FIG. 2C, the wedge 118 may be positioned to work in conjunction with other biasing components such as the elastic element 110 and the resilient bow 112, The wedge 118 may include the yoke 120 at the upper edge and the lower edge 122 positioned toward the sole portion 102. In some embodiments, a window 124 may be visible at the lower edge 122 of the wedge 118, where the window 124 may be configured to receive a heel during foot insertion.

[0115] As shown in FIG. 2D, the wedge 118 may include the yoke 120 at the upper edge and the lower edge 122 positioned toward a lower portion of the heel area. The window 124 may be visible at the lower edge 122 of the wedge 118, configured to receive a heel and provide proper positioning during the donning process. The window 124 may have an arc- shaped configuration that accommodates the natural curvature of a user's heel.

[0116] Referring to FIG. 4A, the wedge 118 may be positioned within the heel portion 104 A and configured to extend into the gap and splay the gap open toward the open position. The wedge 118 may include the yoke 120 at the upper edge, which may be configured to direct a heel during donning of the rapid-entry shoe 100. The wedge 118 may also include the lower edge 122 positioned toward the sole portion 102, providing structural support and coupling capability for the wedge 118.529398.000028

[0117] With continued reference to FIG. 4A, the wedge 118 may be more rigid than the upper 104, providing enhanced structural support and actuation capability. The increased rigidity may allow the wedge 118 to effectively transmit force to the upper 104 material, causing controlled deformation and expansion of the gap. The rigid material composition may comprise materials such as thermoplastic, metal, or composite materials that maintain their shape under load while providing the necessary actuation force.

[0118] As illustrated in FIG. 4B, the wedge 118 may be configured to pivot or deflect rearward toward and into the gap, demonstrating the actuation mechanism that creates gap expansion. The wedge 118 may include the yoke 120 at the upper edge and the lower edge 122 positioned toward the sole portion 102. The pivoting motion may allow the wedge 118 to transition between a retracted position during normal wear and an extended position during donning and doffing operations.

[0119] Referring to FIG. 4C, the wedge 118 may be positioned within the heel portion 104A and may extend vertically through the heel portion 104 A on both the medial portion 104D and lateral portion 104E sides of the gap. The wedge 118 may include the yoke 120 at the upper edge and the lower edge 122 positioned toward the sole portion 102. The wedge 118 may be positioned between layers of the upper 104, allowing the wedge 118 to be concealed within the upper 104 structure while providing the actuation functionality.

[0120] With reference to FIG. 4D, the wedge 118 may extend vertically through the heel portion 104A on both the medial portion 104D and lateral portion 104E sides of the gap. The wedge 118 may include the yoke 120 at the upper edge and the lower edge 122 positioned toward the sole portion 102. The positioning between layers of the upper 104 may allow the wedge 118 to actuate the gap while maintaining the aesthetic appearance of the rapid-entry shoe 100.

[0121] As shown in FIG. 5 A, the wedge 118 may be positioned within the heel portion 104A and may extend vertically through the heel portion 104A. The wedge 118 may include the yoke 120 at the upper edge and the lower edge 122 positioned toward the sole portion 102. The lower edge 122 may include structure that allows the wedge 118 to pivot, providing529398.000028rotatable or pivotable coupling to the upper 104. The pivotable coupling may allow the wedge 118 to rotate about an axis during actuation.

[0122] Referring to FIG. 5B, the wedge 118 may have an elongated rectangular profile and may be positioned to span the width of the gap. The wedge 118 may include the yoke 120 at the upper edge and the lower edge 122 positioned toward the sole portion 102. The wedge 118 may be pivoting about the lower edge 122, demonstrating the rotatable coupling that allows controlled actuation of the gap expansion mechanism.

[0123] With reference to FIG. 5C, the wedge 118 may extend vertically through the heel portion 104A on both sides of the gap. The wedge 118 may include the yoke 120 at the upper edge and the lower edge 122 positioned toward the sole portion 102. The window 124 may be visible at the lower edge 122 of the wedge 118, configured to receive a heel. The window 124 may provide an arc-shaped opening that accommodates the natural contours of a user's heel during insertion.

[0124] As illustrated in FIG. 5D, the wedge 118 may extend vertically through the heel portion 104A on both the medial portion 104D and lateral portion 104E sides of the gap. The wedge 118 may include tire yoke 120 at the upper edge and the lower edge 122 positioned toward the sole portion 102. The window 124 may be visible at the lower edge 122 of the wedge 118, configured to receive a heel and provide proper positioning during foot insertion.

[0125] Referring to FIG. 6A, the wedge 118 may extend vertically through the heel portion 104A and may include the yoke 120 at the upper edge. Tire lower edge 122 may be pivotably coupled to the sole portion 102, providing rotatable coupling to opposing sides of the sole portion 102. The pivotable coupling to the sole portion 102 may allow the wedge 118 to rotate about an axis positioned at the sole portion 102, creating a different actuation pattern compared to upper-coupled configurations,

[0126] With continued reference to FIG. 6A, the wedge 118 may be configured to pivot or deflect rearward toward and into the gap. Tire rotatable coupling to opposing sides of the sole portion 102 may provide stable anchoring for the wedge 118 while allowing controlled529398.000028rotation during actuation. The sole portion 102 coupling may distribute actuation forces effectively and may provide enhanced durability compared to other coupling arrangements.

[0127] As shown in FIG. 6B, the wedge 118 may include the yoke 120 at the upper edge, which may be configured to direct a heel during donning of the rapid-entry shoe 100. The lower edge 122 may be pivotably coupled to the sole portion 102, allowing the wedge 118 to pivot or deflect rearward toward and into the gap. The coupling to the sole portion 102 may provide a stable foundation for the actuation mechanism.

[0128] Referring to FIG. 6C, the wedge 118 may extend vertically through the heel portion 104A on both sides of the gap and may include the yoke 120 at the upper edge. The lower edge 122 may be positioned toward the sole portion 102 and may be pivotably coupled to the sole portion 102. The window 124 may be visible at the lower edge 122 of the wedge 118, configured to receive a heel and provide proper heel positioning during foot insertion,

[0129] With reference to FIG. 6D, the wedge 118 may extend vertically through the heel portion 104A on both the medial portion 104D and lateral portion 104E sides of the gap. The wedge 118 may include the yoke 120 at the upper edge and the lower edge 122 positioned toward the sole portion 102. The window 124 may be visible at the lower edge 122 of the wedge 118, configured to receive a heel and accommodate the natural heel contours during insertion.

[0130] The wedge 118 may provide additional functional benefits beyond gap actuation. In some cases, the wedge 118 may act to limit or prevent contact with the elastic element 110 in order to limit wear to the elastic element 110 during repeated actuation cycles. The wedge 118 may also limit or prevent contact by the user's foot with the upper 104 proximate the gap in order to limit or prevent pinching of the user's skin when the rapid-entry shoe 100 is transitioning to the closed configuration,

[0131] The wedge 118 may also provide structural support to the upper 104 during donning and doffing operations. In some cases, the wedge 118 may limit or prevent collapse of the upper 104 when the rapid-entry shoe 100 is not being worn. The structural rigidity of529398.000028tiie wedge 118 may maintain the shape and form of the heel portion 104A, ensuring that the rapid-entry’ shoe 100 rem ains ready for easy foot insertion. By preventing collapse of the upper 104, the wedge 118 may eliminate the need for users to manually reshape or adjust the rapid-entry' shoe 100 before donning, thereby enhancing the convenience and ease of use of tiie rapid-entry footwear.

[0132] In some embodiments, a portion of the wedge 118 may extend rearward beyond a portion of the upper 104 when the wedge 118 is splaying the gap open toward the open position. The rearward extension may provide enhanced actuation leverage and may create additional clearance for heel insertion. The extended portion may also serve as a visual indicator to the user that the gap is in the open position and ready for foot insertion.

[0133] The wedge 118 may be rotatably or pivotably coupled to opposing sides of the upper 104 in alternative configurations. The coupling to the upper 104 may provide different actuation characteristics compared to sole portion 102 coupling, allowing for customization of the mechanical properties based on specific design requirements. The upper 104 coupling may allow the wedge 118 to follow the natural deformation of the upper 104 during gap expansion.

[0134] In some embodiments, the yoke 120 may comprise a funnel configuration at the upper edge of the wedge 118 to direct a heel during insertion. The funnel configuration may create a gradually expanding opening that guides the heel smoothly into the proper position within the rapid-entry' shoe 100. The funnel shape may reduce insertion force and may minimize the risk of improper heel positioning during donning operations.

[0135] The lower edge 122 of the wedge 118 may comprise a concave or cup-shaped portion configured to surround a heel during insertion. The concave configuration may provide enhanced heel retention and positioning, ensuring that the heel remains properly aligned during the donning process. The cup-shaped portion may conform to the natural contours of the heel, providing comfortable support during foot insertion and removal.529398.000028

[0136] The window 124 at the lower edge 122 may comprise an arc shape configured to receive a heel and accommodate different heel sizes and shapes. The window 124 may provide clearance for heel insertion while maintaining structural integrity of the wedge 118. The window 124 configuration may be optimized to accommodate a range of heel geometries, ensuring compatibility with different foot types and sizes.

[0137] The rapid-entry shoe 100 may be implemented in simplified configurations that rely primarily on the elastic element 110 to provide the biasing functionality for gap closure. These simplified embodiments may reduce manufacturing complexity while maintaining the rapid-entry functionality through streamlined component arrangements. The simplified configurations may be particularly suitable for applications where cost reduction or manufacturing efficiency are priorities.

[0138] Referring to FIG. 7A, the rapid-entry shoe 100 may comprise the sole portion 102 and the upper 104 coupled to the sole portion 102, where the upper 104 includes the heel portion 104A, the dorsum portion 104B, and the toe portion 104C. In this simplified configuration, the elastic element 110 may be coupled to the upper 104 proximate the topline 108 and may extend across the gap in the heel portion 104A. The elastic element 110 may provide the primary biasing mechanism for returning the gap from the open position to the closed position without requiring additional biasing components.

[0139] With continued reference to FIG. 7A, the upper 104 may include inherent stiffness that works in conjunction with the elastic element 110 to provide gap closure functionality. The inherent stiffness of the upper 104 may be achieved through material selection, structural design, or manufacturing processes that create natural resistance to deformation. The inherent stiffness may provide structural support that maintains the shape of the heel portion 104A while allowing controlled expansion and contraction of the gap during donning and doffing operations,

[0140] The inherent stiffness of the upper 104 may be distributed throughout the heel portion 104A or may be concentrated in specific regions to optimize the gap closure behavior. In some cases, the upper 104 material may be selected to provide natural elastic529398.000028properties that complement the elastic element 110. The material properties may be configured to provide adequate structural support while allowing sufficient flexibility’ for gap expansion during foot insertion.

[0141] The simplified configuration may eliminate the need for additional biasing mechanisms such as the resilient bow or the wedge, reducing the number of components and simplifying the manufacturing process. The elastic element 110 may be sized and configured to provide adequate biasing force for reliable gap closure across a range of foot sizes and insertion forces. The simplified approach may maintain the rapid-entry functionality while reducing manufacturing costs and complexity.

[0142] Referring to FIG. 7B and FIG. 7C, the simplified configuration may demonstrate the transition between the closed and open positions of the gap 106. In FIG. 7B, the gap 106 appears in the closed configuration with the elastic element 110 spanning across the gap 106 in a relaxed state. The upper 104 may maintain its natural shape through the inherent stiffness properties, with the medial portion 104D and lateral portion 104E positioned in close proximity to create the closed gap 106 configuration.

[0143] With reference to FIG. 7C, the gap 106 appears in the open configuration, forming a V-shaped or triangular opening that facilitates foot insertion. The elastic element 110 may become elongated as the medial portion 104D and lateral portion 104E separate to create the expanded opening. The elongation of the elastic element 110 may create stored elastic energy that provides the restoring force to return the gap 106 to the closed position shown in FIG. 7B.

[0144] The transition between the configurations shown in FIG. 7B and FIG. 7C may occur through the application of insertion force by the user's foot during donning operations. The inherent stiffness of the upper 104 may provide controlled resistance to gap expansion, ensuring that the opening occurs in a predictable manner that accommodates foot insertion while maintaining structural integrity of the heel portion 104A.529398.000028

[0145] In the simplified configuration, the elastic element 110 may be the sole biasing mechanism responsible for gap closure, eliminating the complexity associated with multiple biasing components. The elastic element 110 may be configured with appropriate elastic properties to provide sufficient restoring force for reliable closure across various use conditions. The sizing and material selection of the elastic element 110 may be optimized to balance closure force with expansion capability.

[0146] The inherent stiffness of the upper 104 and the elastic element 110 may work together synergistically to bias the gap toward the closed configuration. The upper 104 material may provide structural resistance to deformation that complements tire elastic restoring force of the elastic element 110, creating a combined biasing effect that ensures reliable gap closure. In some cases, the stiffness of the upper 104 may contribute to the overall biasing force by resisting the expansion of the gap during foot insertion and naturally returning to its original shape once the insertion force is removed. The elastic element 110 may provide additional restoring force that supplements the natural tendency of the upper 104 to return to its undeformed state. Tire combined action of these two mechanisms may create a more robust closure system than either component could provide independently, ensuring that the gap reliably returns to the closed position after each donning operation while maintaining adequate flexibility for comfortable foot insertion.

[0147] The simplified configuration may include concealment features that maintain the aesthetic appearance of conventional footwear while providing the rapid-entry functionality. The elastic element 110 may be positioned on an interior surface of the upper 104, concealing the elastic element 110 from external view. Alternatively, the elastic element 110 may be integrated into the upper 104 material in a manner that creates a seamless appearance while maintaining the biasing functionality.

[0148] In some embodiments, the gap 106 may be concealed by the elastic element 110 itself, where the elastic element 110 acts as a covering that spans the gap 106 opening. The covering function may prevent debris or moisture from entering through the gap 106 while maintaining the expansion and contraction capabilities. Tire elastic element 110 may be529398.000028configured to stretch sufficiently to accommodate gap expansion while providing adequate coverage in the closed position.

[0149] The simplified configuration may provide enhanced durability through the reduction of moving parts and complex mechanisms. The elastic element 110 may be constructed from durable elastic materials that maintain their properties through repeated expansion and contraction cycles. The inherent stiffness of the upper 104 may provide long- term structural stability without requiring maintenance or adjustment of additional biasing components.

[0150] The manufacturing process for the simplified configuration may be streamlined through the elimination of additional biasing mechanisms. The assembly process may focus on proper positioning and attachment of the elastic element 110, reducing manufacturing time and complexity. The simplified component arrangement may also facilitate quality’ control and inspection processes during manufacturing,

[0151] The rapid-entry footwear system operates through coordinated interaction between multiple components that facilitate easy donning and doffing while maintaining secure fit during normal wear. The functional operation involves a sequence of expansion and contraction phases that respond to user actions and provide automatic closure without requiring manual adjustment of traditional fastening mechanisms.

[0152] During the donning process, the user may approach the rapid-entry shoe with the gap in its closed configuration. The initial contact between the user's foot and the heel portion creates localized pressure that begins the expansion sequence. As the user applies downward pressure with the heel, the gap begins to open in response to the insertion force, The expansion may occur progressively, with the gap opening gradually as the heel advances into the shoe opening.

[0153] The expansion process may be facilitated by the wedge component, which acts as a mechanical actuator that amplifies the opening force applied by the user's foot. When the heel contacts the wedge, the applied force causes the wedge to pivot or deflect rearward into529398.000028the gap region. This deflection motion creates outward pressure against the opposing sides of the heel portion, causing the gap to splay open and create increased clearance for foot insertion.

[0154] The wedge may provide a mechanical advantage that reduces the insertion force required from the user while ensuring reliable gap expansion. The yoke portion of the wedge may guide the heel smoothly into the proper position, functioning as an integrated shoe horn that eliminates the need for external insertion aids. The funnel-shaped configuration of the yoke may create a progressive transition that directs the heel toward the optimal insertion path.

[0155] As the gap expands during foot insertion, the elastic element experiences elongation that creates stored elastic energy. The stretching of the elastic element generates increasing restoring force that opposes further expansion of the gap. This progressive resistance may provide tactile feedback to the user, indicating the degree of gap expansion and the proximity to full foot insertion.

[0156] The resilient bow components may simultaneously deform to accommodate the gap expansion, with the arms of the bow bending or flexing as the opposing sides of the heel portion separate. The deformation of the resilient bow creates additional stored elastic energy that contributes to the overall biasing force toward the closed position. The bow configuration may provide structural support that prevents excessive deformation of the heel portion while allowing controlled expansion.

[0157] During the insertion process, the various biasing components work in opposition to the expansion forces, creating a balanced system that facilitates entry while maintaining structural integrity and foot retention. The elastic element may provide continuous biasing force across the gap opening, while the resilient bow may provide distributed structural support that maintains the shape of the heel portion. Tire wedge may overcome the combined resistance of these biasing components through mechanical advantage, ensuring reliable gap expansion even when significant biasing force is present.529398.000028

[0158] The transition from the open configuration to the closed configuration begins as the user's foot advances fully into the shoe and the insertion force is reduced or eliminated, The stored elastic energy in the elastic element and resilient bow components creates restoring forces that urge the gap toward the closed position. The automatic closure process occurs without requiring user intervention, providing immediate secure retention of the foot within the shoe.

[0159] The closure sequence may occur progressively, with the gap contracting from the expanded configuration toward the closed configuration as the biasing forces overcome the diminishing insertion forces. The elastic element may provide primary closure force through its tendency to return to its original length, while the resilient bow may provide closure force and structural guidance that ensures proper alignment of the heel portion during closure.

[0160] The wedge component may return to its retracted position as the insertion forces are removed, allowing the gap to close completely. Tire wedge may be configured to remain in a neutral position during normal wear, where the wedge does not interfere with the closed gap configuration or create discomfort for the user. The retracted position of the wedge may maintain the wedge in readiness for subsequent donning operations while preserving the secure fit characteristics during wear.

[0161] During normal wear, the closed gap configuration provides secure retention of the foot within the shoe through the combined action of the biasing components and the natural fit characteristics of the upper. The elastic element may maintain continuous tension across the gap, ensuring that the opening remains closed even under dynamic loading conditions such as walking or running. The resilient bow may provide structural support that maintains the closed position of the gap and maintains the shape and integrity of the heel portion during various activities.

[0162] The doffing process may involve a reversal of the donning sequence, where the user applies rearward and / or upward force to withdraw the foot from the shoe. The withdrawal force may cause temporary expansion of the gap as the heel moves through the opening, with the biasing components accommodating the expansion and providing529398.000028automatic closure once the foot is removed. The gap may return to its closed configuration immediately after foot removal, maintaining the shoe in a ready state for subsequent donning operations.

[0163] The interaction between multiple biasing components may provide enhanced performance characteristics compared to single-component systems. The combination of elastic element and resilient bow may create redundant biasing mechanisms that ensure reliable closure even if one component experiences reduced effectiveness. The dualcomponent approach may also distribute the biasing forces more evenly, reducing stress concentrations and enhancing durability.

[0164] The wedge component may be combined with either or both biasing mechanisms to create optimized performance for different use cases and user preferences. In configurations that include all three components, the wedge may provide enhanced expansion capability while the elastic element and resilient bow provide comprehensive closure and retention forces. The multi-component approach may accommodate a wider range of foot sizes and insertion techniques while maintaining consistent performance.

[0165] The component interaction may be tuned through material selection and geometric configuration to achieve specific performance characteristics. The elastic properties of the elastic element may be selected to provide appropriate restoring force for the intended user demographic and use case. The structural properties of the resilient bow may be configured to provide optimal balance between expansion capability and closure force. Tire mechanical advantage of the wedge may be adjusted through pivot point positioning and geometric design to accommodate different insertion force requirements.

[0166] The coordinated operation of the components may provide enhanced user experience through reduced insertion effort, automatic closure, and secure retention during wear. The system may eliminate the need for manual adjustment of traditional fastening mechanisms while maintaining the fit and support characteristics expected from conventional footwear. The rapid-entry functionality may be achieved w ithout compromising the aesthetic appearance or durability of the shoe construction.529398.000028

[0167] The component interaction may accommodate variations in user technique and foot geometry’ through the adaptive response characteristics of the biasing mechanisms. Tire elastic element may stretch to different degrees based on the insertion force and foot size, while the resilient bow may deform to accommodate different heel shapes and insertion angles. The wedge may provide consistent actuation regardless of the specific insertion technique employed by the user.

[0168] The functional operation may maintain effectiveness across repeated use cycles through the resilient properties of the biasing components. The elastic element may retain its restoring force characteristics through numerous expansion and contraction cycles, while the resilient bow may maintain its structural support properties over extended use periods. The wedge may provide consistent actuation performance without degradation of the mechanical advantage or pivot functionality.

[0169] It will be apparent to those skilled in the art that various modifications and variations can be made in the present disclosure without departing from the spirit or scope of the disclosure. Thus, it is intended that the embodiments described herein cover the modifications and variations of this disclosure provided they come within the scope of the appended claims and their equivalents.

[0170] Numerous characteristics and advantages have been set forth in the preceding description, including various alternatives together with details of the structure and function of the devices and / or methods. The disclosure is intended as illustrative only and as such is not intended to be exhaustive. It will be evident to those skilled in the art that various modifications can be made, especially in matters of structure, materials, elements, components, shape, size and arrangement of parts including combinations within the principles of the disclosure, to the full extent indicated by the broad, general meaning of the terms in which the appended claims are expressed. To the extent that these various modifications do not depart from the spirit and scope of the appended claims, they are intended to be encompassed therein.

Claims

529398.000028CLAIMS1. A rapid-entry shoe, comprising:a sole portion;an upper coupled to the sole portion, the upper comprising a heel portion; and a gap through at least a portion of the heel portion of the upper, the gap extending to a topline of the upper and having an open position to facilitate donning and doffing of the rapid-entry shoe and a closed position, wherein the gap is biased toward the closed position.

2. The rapid-entry shoe of claim 1, further comprising an elastic element extending across the gap and configured to bias the gap from the open position to the closed position.

3. The rapid-entry shoe of claim 2, wherein the elastic element is elongated when the gap is in the open position.

4. The rapid-entry shoe of claim 1, further comprising a resilient bow extending to at least one side of the gap and configured to bias the gap from the open position to the closed position.

5. The rapid-entry shoe of claim 4, wherein the resilient bow comprises at least one arm having ends coupled to the sole portion.

6. The rapid-entry shoe of claim 5, wherein the resilient bow comprises a first arm and a second arm,7. The rapid-entry shoe of claim 1, further comprising a wedge configured to deflect into the gap and splay the gap open toward the open position.

8. The rapid-entry' shoe of claim 7, wherein the wedge is rotatably coupled to opposing sides of the sole portion.

9. The rapid-entry shoe of claim 7, wherein the wedge comprises a yoke at an upper edge of the wedge to direct a heel.529398.00002810. The rapid-entry shoe of claim 9, wherein the wedge comprises a window at a lower edge of the wedge to receive a heel.

11. A rapid-entry shoe comprising:a sole portion;an upper coupled to the sole portion, the upper comprising a heel portion;a gap through the heel portion of the upper, the gap extending to a topline of the upper; anda wedge configured to extend into the gap and splay the gap open toward an open position.

12. The rapid-entry shoe of claim 11, wherein the wedge is rotatably coupled to opposing sides of the sole portion.

13. The rapid-entry shoe of claim 11, wherein the wedge comprises a yoke at an upper edge of the wedge to direct a heel.

14. The rapid -entry shoe of claim 13, wherein the wedge comprises a window at a lower edge of the wedge to receive a heel,15. The rapid-entry shoe of claim 11, further comprising an elastic element extending across the gap and configured to bias the gap from the open position to a closed position.

16. A rapid-entry shoe comprising:a sole portion;an upper coupled to the sole portion, the upper comprising a heel portion;a gap through the heel portion of the upper; anda resilient bow extending to at least one side of the gap and configured to bias the gap from an open position to a closed position.529398.00002817. The rapid-entry shoe of claim 16, wherein the resilient bow comprises at least one arm having ends coupled to the sole portion.

18. The rapid-entry shoe of claim 17, wherein the resilient bow comprises a first arm and a second arm.

19. The rapid-entry shoe of claim 16, wherein the gap extends to a topline of the upper.

20. The rapid-entry shoe of claim 19, further comprising an elastic element extending across the gap and configured to bias tire gap from the open position to the closed position.

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