Footwear and a fastening system therefor

Abstract

The footwear includes an upper, a disk, and a cord. The upper is attached to a sole structure including a midsole extending within a heel region of the footwear. The disk defines a first axis. The disk is disposed within the midsole in the heel region and has a first surface having a cord retainer and a second surface having a plurality of teeth, the first surface being perpendicular to the second surface. The cord includes a first end and a second end. A first tension is configured to be applied to the cord. At least one of the first end and the second end of the cord is fixed to the cord retainer. When the disk is rotated in a first direction about the first axis, the first tension is applied to the cord.

Description

Technical Field

[0001] The present disclosure generally relates to footwear including a closure system, and more specifically to a closure system including a disk heel fastener mechanism.

Background Art

[0002] Many conventional shoes or other footwear generally include an upper and a sole attached to the lower end of the upper. Conventional shoes further include an internal space, i.e., a void or cavity, formed by the inner surfaces of the upper and the sole and that receives the user's foot before the shoe is secured to the foot. The sole is attached to the lower surface or border of the upper and is disposed between the upper and the ground. As a result, the sole typically provides stability and cushioning to the user when the shoe is being worn. In some instances, the sole may include multiple components such as an outsole, a midsole, and a top. The outsole can provide traction to the bottom surface of the sole, and the midsole can be attached to the inner surface of the outsole and can provide cushioning or additional stability to the sole. For example, the sole may include a specific foaming material that can increase stability at one or more desired positions along the sole, or a foaming material that can reduce stress or impact energy on the foot or leg when the user is running, walking, or engaged in another activity. The sole may also include additional components such as a plate embedded in the sole to increase the overall rigidity of the sole and reduce energy loss during use.

[0003] The upper generally extends upward from the sole and defines an internal cavity that completely or partially encloses the foot. In most cases, the upper extends across the instep and toe regions of the foot, as well as across its inner and outer sides. Many footwear also may include a tongue that extends across the instep region of the foot to fill the gap between the inner and outer edges of the upper and defines an opening into the cavity. The tongue also may be disposed under a lacing system and between the inner and outer sides of the upper to enable adjustment of the shoe's tightening. The tongue may further be operable by the user to enable entry or exit of the foot from the internal space or cavity. Additionally, the lacing system may enable the user to adjust specific dimensions of the upper or sole, thereby enabling the upper to accommodate a wide variety of foot shapes having various sizes and shapes.

[0004] Many shoe uppers can comprise a wide variety of materials that can be utilized to form the upper and can be selected for use based on one or more intended uses of the shoe. The upper also may include portions that comprise various materials that are specific to particular regions of the upper. For example, additional stability may be desirable adjacent the front or heel regions of the upper to provide a higher degree of resistance or rigidity. In contrast, other portions of the shoe may include a soft woven fabric to provide regions having stretch resistance, flexibility, breathability, or moisture absorbency.

SUMMARY OF THE INVENTION

PROBLEMS TO BE SOLVED BY THE INVENTION

[0005] However, in many cases, footwear having an upper with an improved closure mechanism, enhanced comfort, and a better fit is desired. One common closure mechanism for fastening the upper and the shooter on a user's foot is to use shoelaces. Shoelaces provide a reliable closure mechanism, but there is a possibility that the shoelaces may break or come undone. Additionally, shoelaces may loosen over time, thereby becoming aesthetically unappealing. Accordingly, there is a need for footwear that can selectively provide a secure fit of the upper and the shooter on a user's foot without using shoelaces and that can selectively provide a loose fit of the upper and the shooter on a user's foot.

Means for Solving the Problem

[0006] The footwear described herein can have various configurations. The footwear may have an upper and a sole structure connected to the upper.

[0007] In some embodiments, the footwear includes an upper, a plurality of eyelets, a disk, and a cord. The upper is attached to a sole structure that includes a midsole extending within the heel region of the footwear. The disk is disposed within the midsole in the heel region and has a cylindrical shape and a first axis. The disk has a first surface having a cord retainer and a second surface having a plurality of teeth. The cord has a first end and a second end. A first tension is configured to be applied to the cord. The first surface is perpendicular to the second surface. At least one of the first end and the second end of the cord is fixed to the cord retainer such that at least one of the first end and the second end of the cord is received within at least one of the plurality of eyelets. When the disk is rotated about the first axis, the first tension is applied to the cord.

[0008] In some aspects, the footwear includes an upper, a disk, and a cord. The upper is attached to a sole structure that includes a midsole extending within the heel region of the footwear. The disk defines a first axis. The disk is disposed within the midsole in the heel region and has a first surface with a cord retainer and a second surface with a plurality of teeth, and the first surface is perpendicular to the second surface. The cord includes a first end and a second end. A first tension is configured to be applied to the cord. At least one of the first end and the second end of the cord is fixed to the cord retainer. When the disk is rotated in a first direction about the first axis, the first tension is applied to the cord.

[0009] In some embodiments, the plurality of teeth are circumferentially disposed on the disk. In some embodiments, the plurality of teeth extend outwardly from the disk. In some embodiments, the plurality of teeth are exposed on the outside of the footwear. In some embodiments, when the disk is rotated in a first direction about the first axis, the length of the cord is wound around the cord retainer. In some embodiments, the first axis is perpendicular to a central axis that intersects the toe end and the heel end of the footwear. In some embodiments, the cord extends through a plurality of eyelets disposed on the upper.

[0010] In some aspects, the footwear includes an upper attached to a sole structure, a plurality of eyelets disposed on the upper, a disk, a release mechanism, and a cord. The disk is disposed within a cavity in the sole structure and defines a first axis. The disk has a cord retainer and a plurality of teeth protruding outwardly from the cavity. The release mechanism is operably connected to the disk. The cord has a first end and a second end, and at least one of the first end or the second end of the cord is fixed to the cord retainer. When the disk is rotated about the first axis, the cord is configured to adjust the tightening of the footwear.

[0011] In some embodiments, the footwear is configured to be unlocked by the actuation of a release mechanism. In some embodiments, the release mechanism is disposed within the sole structure. In some embodiments, the release mechanism protrudes from the sole structure. In some embodiments, when the disk is rotated in a first direction about a first axis, the cord is configured to adjust the footwear to a tightened configuration. In some embodiments, further rotation of the disk in the first direction about the first axis causes a stepwise tightening of the footwear. In some embodiments, when the release mechanism is actuated, the disk is configured to rotate in a second direction about the first axis and the footwear is configured to be adjusted to a loosened configuration.

[0012] In some aspects, a fastening system for footwear includes a right shoe and a left shoe. The right shoe includes a right disk disposed within the sole structure and defining a first axis. The right disk has a cord retainer and a plurality of teeth protruding outward from the sole structure. The right shoe further includes a release mechanism operably connected to the right disk and a cord operably fixed to the cord retainer. The left shoe includes a left disk disposed within the sole structure and defining a second axis. The left disk has a cord retainer and a plurality of teeth protruding outward from the sole structure. The left shoe further includes a release mechanism operably connected to the left disk and a cord operably fixed to the cord retainer. When the right disk and the left disk are moved relative to each other, one of the right disk or the left disk is configured to rotate by engagement with the plurality of teeth of the other disk of the right disk or the left disk, such that the tightening of at least one of the right shoe or the left shoe is adjusted.

[0013] In some embodiments, when the right shoe is moved rearward, the left disk is configured to adjust the tightening of the left shoe. In some embodiments, the release mechanism of the left shoe is configured to be actuated to unlock the left disk, and the release mechanism of the right shoe is configured to be actuated to unlock the right disk. In some embodiments, the right disk of the right shoe is configured to be rotated in a first direction about a first axis to adjust the tightening of the right shoe, and the left disk of the left shoe is configured to be rotated in a second direction about a second axis to adjust the tightening of the left shoe, and the first direction and the second direction are opposite to each other. In some embodiments, each of the right disk and the left disk is disposed within the heel region of the sole structure. In some embodiments, the release mechanism of the right disk is disposed forward of the right disk within the sole structure, and the release mechanism of the left shoe is disposed forward of the left disk within the sole structure.

[0014] Other aspects of the footwear including features and advantages will become apparent to those skilled in the art upon consideration of the drawings and the detailed description herein. Accordingly, all such aspects of the footwear are intended to be included within the detailed description and this summary.

Brief Description of the Drawings

[0015]

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DETAILED DESCRIPTION OF THE INVENTION

[0016] The following description and the accompanying drawings disclose various embodiments or configurations of shoes and sole structures. Embodiments of the shoes or sole structures are disclosed with respect to sports shoes such as running shoes, tennis shoes, basketball shoes, etc., but the concepts related to embodiments of the shoes or sole structures can be applied to a wide range of footwear and footwear styles including, for example, cross-training shoes, football shoes, golf shoes, hiking shoes, hiking boots, ski and snowboard boots, soccer shoes and cleats, walking shoes, and track cleats. The concepts of the shoes or sole structures may also be applied to footwear that is considered non-sporting, including dress shoes, sandals, loafers, slippers, and heels. In addition to footwear, the specific concepts described herein may also be applied to and incorporated into other types of clothing or other sports equipment, including helmets, pads or protective pads, shin guards, and gloves. Further, the specific concepts described herein may be incorporated into cushions, backpack straps, golf clubs, or other consumer or industrial products. Thus, the concepts described herein can be utilized in a variety of products.

[0017] As used herein, the term "about" refers to numerical variations that can occur, for example, through inadvertent error in these procedures, through the typical measurement and manufacturing procedures used for footwear or other products, which may include embodiments of the disclosure herein, or through differences in the manufacture, source, or purity of the ingredients used in making a composition or mixture or in performing a method. Throughout the disclosure, the terms "about" and "approximately" refer to a range of values of ±5% of the value of the numerical term that they precede.

[0018] The present disclosure is directed to footwear and / or specific components of footwear, such as an upper and / or a sole or sole structure. The upper may comprise a knitted component, a woven fabric, and / or a non-woven fabric. The knitted component may be made of a knitted yarn, a woven fabric by weaving of yarns, and a non-woven fabric by production of a single non-woven web. The knitted fabric includes fabrics formed by knitting operations such as warp knitting, weft knitting, plain knitting, circular knitting, and / or other suitable knitting operations. The knitted fabric may have, for example, a plain knit structure, a mesh knit structure, and / or a rib knit structure. The woven fabric includes fabrics formed by any of a number of weaving patterns, such as, but not limited to, plain weave, twill weave, satin weave, dobby weave, jacquard weave, double weave, and / or double cloth weave. The non-woven fabric includes, for example, fibers produced by an airlaid method and / or a spunlaid method. The upper may comprise various materials such as a first yarn, a second yarn, and / or a third yarn that may have various properties or various visual properties.

[0019] Figures 1-3 illustrate exemplary embodiments of a footwear 100 including an upper 102 (see Figures 1 and 2) and a sole structure 104. The upper 102 is attached to the sole structure 104 and together defines an internal cavity 106 (see Figure 2) into which a foot can be inserted. For reference, the footwear 100 defines a forefoot region 108, a midfoot region 110, and a heel region 112. The forefoot region 108 generally corresponds to the portion of the footwear 100 that encloses the portion of the foot including the toes, the ball of the foot, and the joints connecting the metatarsal bones to the toes or phalanges. The midfoot region 110 is adjacent and proximate to the forefoot region 108 and generally corresponds to the portion of the footwear 100 that encloses the arch of the foot along with the bridge of the foot. The heel region 112 is adjacent and proximate to the midfoot region 110 and generally corresponds to the portion of the footwear 100 that encloses the rear portion of the foot including the heel or calcaneus bone, the ankle, and / or the Achilles tendon.

[0020] Many conventional footwear uppers are formed from multiple elements (e.g., fabrics, polymer foams, polymer sheets, leather, and synthetic leather) that are joined or stitched together at seams. In some embodiments, the upper 102 of the footwear 100 is formed from a knit structure or knit components. In various embodiments, the knit components can incorporate various types of yarns that can provide different properties to the upper. For example, one region of the upper 102 may be formed from a first type of yarn that imparts a first set of properties, and another region of the upper 102 may be formed from a second type of yarn that imparts a second set of properties. Using this configuration, the properties of the upper 102 can vary across the upper 102 by selecting specific yarns for different regions of the upper 102.

[0021] Referring to FIGS. 1 and 2, with respect to the materials that make up the upper 102, the specific properties that a particular type of yarn imparts to a region of the knit component can depend at least in part on the materials that form the various filaments and fibers of the yarn. For example, cotton can provide a soft effect, biodegradability, or a natural aesthetic to the knit material. Elastane and stretch polyester can each provide a knit component with the desired elasticity and recovery. Rayon can provide a material with high luster and hygroscopicity, wool can provide a material with increased hygroscopicity, nylon can be a durable material that is abrasion resistant, and polyester can provide a hydrophobic and durable material.

[0022] Other aspects of the knit component can also be modified to affect the properties of the knit component and provide desired attributes. For example, the yarn forming the knit component can include monofilament yarn or multifilament yarn, or the yarn can include filaments formed from two or more different materials respectively. Additionally, the knit component can be formed using a specific knitting process to impart regions of the knit component with specific properties. Thus, both the material forming the yarn and other aspects of the yarn can be selected to impart various properties to specific regions of the upper 102.

[0023] Referring further to FIGS. 1 and 2, in some embodiments, the elasticity of the knit structure can be measured based on comparing the width or length of a first knit structure in a non-stretched state to the width or length of a second knit structure in a stretched state after a force is applied to the knit structure in the lateral direction. In further embodiments, the upper 102 may also include additional structural elements. For example, in some embodiments, a heel plate or cover (not shown) can be provided over the heel region 112 to provide additional support to the user's heel. In some examples, other elements, such as plastic materials, logos, trademarks, etc., can also be applied and fixed to the outer surface using an adhesive or a thermoforming process. In some embodiments, the properties associated with the upper 102, such as the type of stitch, the type of yarn, or properties such as elasticity, aesthetic appearance, thickness, breathability, or abrasion resistance associated with different types of stitches or yarns, can be varied.

[0024] The sole structure 104 is connected or fixed to the upper 102 and extends between the user's foot and the ground when the footwear 100 is worn by the user. The sole structure 104 can include one or more components that can include an outsole, a midsole, a heel, a bump, and / or an insole. For example, in some embodiments, the sole structure can include an outsole that provides traction to the user and provides structural integrity to the sole structure, a midsole that provides a cushioning system, and an insole that provides support for the user's arch. Also, the insole can be a strobel board, a forefoot board, a lasting board, etc., or a combination thereof, the insole can be provided between the upper 102 and the sole structure 104, or the insole can be provided as part of the upper 102.

[0025] Further, referring to FIGS. 1 and 2, the insole can be disposed within the internal cavity of the upper, and the upper can be in direct contact with the user's foot while the footwear is being worn. Further, the upper can also include a liner (not shown) that can enhance comfort, for example, by reducing friction between the user's foot and the upper, the sole, the insole, etc., and / or by providing moisture absorption and dissipation properties. The liner can be arranged in a row over the entire internal cavity or a portion thereof. In some embodiments, a binding (not shown) can surround the opening of the internal cavity to fix the liner to the upper and / or to provide an aesthetic element on the footwear.

[0026] Referring to FIGS. 2 and 3, the footwear 100 also defines an outer side 114 and an inner side 116. When a user is wearing the shoe, the outer side 114 corresponds to the portion facing the outside of the footwear 100, and the inner side 116 corresponds to the portion facing the inside of the footwear 100. Thus, the footwear 100 has opposing outer side 114 and inner side 116. The inner side 116 and the outer side 114 are adjacent to each other along a longitudinal central plane or central axis 118 of the footwear 100 that is in the same plane as the longitudinal axis L of FIG. 1. As further described herein, the central axis 118 can define a central intermediate axis between the inner side 116 and the outer side 114 of the footwear 100. In other words, the central axis 118 can extend between a rear proximal end 120 of the footwear 100 and a front distal end 122 of the footwear 100, and can continuously define the center of the insole 124, the sole structure 104, and / or the upper 102 of the footwear 100, that is, the central axis 118 is a straight axis that extends from the rear proximal end 120 of the heel region 112 through to the front distal end 122 of the forefoot region 108.

[0027] Referring to FIG. 3, unless otherwise specified, the footwear 100 may be defined by a forefoot region 108, a midfoot region 110, and a heel region 112. The forefoot region 108 generally corresponds to the portion of the footwear 100 that encloses the portion of the foot 126 that includes a set of toes or phalanges 128, a ball of the thumb 130, and a set of joints 132 that connect the set of midfoot bones 134 of the foot 126 to the set of toes or phalanges 128. The midfoot region 110 is adjacent and proximate to the forefoot region 108. The midfoot region 110 generally corresponds to the portion of the footwear 100 that encloses the arch 136 of the foot 126, along with the bridge 138 of the foot 126. The heel region 112 is adjacent and proximate to the midfoot region 110. The heel region 112 generally corresponds to the portion of the footwear 100 that encloses the rear portion 126 of the foot, including the heel or calcaneus 140, the ankle (not shown), and / or the Achilles tendon (not shown).

[0028] Referring to FIGS. 1 and 2, the forefoot region 108, the midfoot region 110, the heel region 112, the inner side 116, and the outer side 114 are intended to define the boundaries or regions of the footwear 100. To that end, the forefoot region 108, the midfoot region 110, the heel region 112, the inner side 116, and the outer side 114 generally characterize the sections of the footwear 100. Some aspects of the present disclosure may refer to portions or elements having the same extent as one or more of the forefoot region 108, the midfoot region 110, the heel region 112, the inner side 116, and / or the outer side 114. Further, both the upper 102 and the sole structure 104 may be characterized as having portions along the forefoot region 108, the midfoot region 110, the heel region 112, and / or the inner side 116 and / or the outer side 114. Accordingly, the upper 102 and the sole structure 104, and / or the individual portions of the upper 102 and the sole structure 104, can include the portions thereof disposed along the forefoot region 108, the midfoot region 110, the heel region 112, and / or the inner side 116 and / or the outer side 114.

[0029] Referring to FIGS. 2 and 3, the forefoot region 108, the midfoot region 110, the heel region 112, the inner side 116, and the outer side 114 are shown in detail. The forefoot region 108 extends from the toe tip 142 to the widest part 144 of the footwear 100. The widest part 144 is defined or measured along a first line 146 perpendicular to the central axis 118 that extends from the distal part of the toe tip 142 to the distal part of the heel end 148 opposite the toe tip 142. The midfoot region 110 extends from the widest part 144 of the footwear 100 to the narrowest part 150. The narrowest part 150 of the footwear 100 is defined as the narrowest part of the footwear 100 measured across a second line 152 perpendicular to the central axis 118. The heel region 112 extends from the narrowest part 150 of the footwear 100 to the heel end 148.

[0030] In view of the foregoing description, it will be apparent to those skilled in the art that numerous variations are possible, and it should be understood that the individual components can be incorporated into numerous footwear items. Thus, aspects of the footwear 100 and its components can be described with reference to the general regions or portions of the footwear 100 by understanding the boundaries of the forefoot region 108, midfoot region 110, heel region 112, medial side 116, and / or lateral side 114 as described herein. However, aspects of the footwear 100 and its individual components can also be described with reference to the exact regions or portions of the footwear 100, and the scope of the appended claims herein may incorporate limitations related to these boundaries of the forefoot region 108, midfoot region 110, heel region 112, medial side 116, and / or lateral side 114 discussed herein.

[0031] Referring further to FIGS. 2 and 3, the medial side 116 begins at the distal toe tip 142 and curves outwardly along the medial side of the footwear 100 along the forefoot region 108 towards the midfoot region 110. The medial side 116 reaches a first line 146, at which point the medial side 116 bends inwardly towards the central axis 118. The medial side 116 extends from the first line 146, i.e., the widest portion 144, towards a second line 152, i.e., the narrowest portion 150, at which point the medial side 116 enters the midfoot region 110, i.e., crosses the first line 146. Upon reaching the second line 152, the medial side 116 curves outwardly away from the central axis 118, at which point the medial side 116 extends into the heel region 112, i.e., crosses the second line 152. Next, the medial side 116 curves outwardly and then inwardly towards the heel end 148, terminating at the point where the medial side 116 intersects the central axis 118.

[0032] The outer side 114 also begins at the distal toe tip 142 and curves outward along the outer side of the footwear 100, along the forefoot region 108, and toward the midfoot region 110. The outer side 114 reaches a first line 146, at which point the outer side 114 bends inward toward the central axis 118. The outer side 114 extends from the first line 146, i.e., the widest part 144, toward a second line 152, i.e., the narrowest part 150, at which point the outer side 114 enters the midfoot region 110, i.e., crosses the first line 146. When reaching the second line 152, the outer side 114 curves outward away from the central axis 118, at which point the outer side 114 extends within the heel region 112, i.e., crosses the second line 152. The outer side 114 then bends outward and then bends inward toward the heel end 148, terminating at the point where the outer side 114 intersects the central axis 118.

[0033] Referring to FIG. 2, the upper 102 extends across the forefoot region 108, the midfoot region 110, and the heel region 112 along the outer side 114 and the inner side 116 to accommodate and enclose the user's foot. When fully assembled, the upper 102 also includes an inner surface 154 and an outer surface 156. The inner surface 154 faces inward and generally defines an inner cavity 106, and the outer surface 156 of the upper 102 faces outward and generally defines the outer perimeter or boundary of the upper 102. The upper 102 also includes an opening 158 that is at least partially located in the heel region 112 of the footwear 100, which provides access to the inner cavity 106 through which the foot can be inserted and removed. In some embodiments, the upper 102 may also include an instep region 160 that extends from the opening 158 in the heel region 112 across the region corresponding to the instep to the region proximate the forefoot region 108. The instep region 160 may have a region similar to the region where the shooter 162 of this embodiment is disposed. In some embodiments, the upper 102 does not include a shooter 162, i.e., the upper 102 is shooterless.

[0034] Referring to FIG. 1, the sole structure 104 includes a midsole 164 and an outsole 166. The outsole 166 may define the bottom end or bottom surface 168 of the sole structure 104 that traverses the heel region 112, the midfoot region 110, and the forefoot region 108. Further, the outsole 166 may be the ground-engaging portion of the sole structure 104, or may include a ground-engaging surface and may be on the opposite side of the insole of the sole structure 104. As shown in FIG. 1, the bottom surface 168 of the outsole 166 may include a tread pattern 170 that can include various shapes and configurations. The outsole 166 may be formed from one or more materials to impart durability, abrasion resistance, frictional resistance, or traction to the sole structure 104. In some embodiments, the outsole 166 may be formed from any type of elastomeric material, such as rubber including thermosetting elastomers or thermoplastic elastomers, or a thermoplastic material such as thermoplastic polyurethane (TPU). In some embodiments, the outsole 166 may define a Shore A hardness of up to 95. Further, the outsole 166 may be manufactured by a process including injection molding, vulcanization, layer-by-layer printing, i.e., an additive manufacturing system or method, etc.

[0035] The midsole 164 may be individually constructed from a thermoplastic material such as, for example, polyurethane (PU), and / or ethylene-vinyl acetate (EVA), their copolymers, or similar types of materials. In other embodiments, the midsole 164 is an EVA-Solid-Sponge (“ESS”) material, an EVA foam (e.g., PUMA® ProFoam Lite TM, an ignite form), polyurethane, polyether, olefin block copolymer, organosheet, thermoplastic material (e.g., thermoplastic polyurethane, thermoplastic elastomer, thermoplastic polyolefin, etc.), or a supercritical foam. The midsole 164 may be a single polymer material or a blend of materials such as EVA copolymer, thermoplastic polyurethane, polyether block amide (PEBA) copolymer, and / or olefin block copolymer. An example of a PEBA material is PEBAX®. In some embodiments, the midsole 164 is manufactured by a process including injection molding, vulcanization, printing for each layer, i.e., an additive manufacturing system or method, etc.

[0036] Referring to FIG. 1, in embodiments where the midsole 164 is formed from a supercritical foaming process, the supercritical foam is an autoclave, an injection molding machine, or a supercritical fluid (e.g., CO 2 , N 2 , or a mixture thereof) and preferably a process carried out in any sufficiently heated / pressurized vessel capable of treating the mixing of a molten material (e.g., TPU, EVA, polyolefin elastomer, or a mixture thereof), a microcellular foam or particulate foam such as TPU, EVA, PEBAX®, or a mixture thereof can be provided. In one exemplary process, a solution of supercritical fluid and molten material is pumped into a pressure vessel, and then the pressure inside the vessel is released. As a result, the molecules of the supercritical fluid rapidly convert to a gas, forming small pockets within the material and expanding the material into a foam. In further embodiments, the midsole 164 can be formed using alternative methods known in the art, including the use of an expansion press, an injection molding machine, a pellet expansion process, a cold foaming process, compression molding techniques, die cutting, or any combination thereof. For example, the midsole 164 can be formed using a process including an initial foaming step in which a supercritical gas is used to foam the material and then compression molded or die cut into a specific shape.

[0037] Referring to FIG. 4, another embodiment of the footwear 200 having the fastener system 204 is configured as a right shoe 208 and includes an upper 212 having a shooter 216 and a plurality of eyelets 220 adjacent to the shooter 216. The midsole 224 has a first or midsole body 228 having a first or rear opening 232 disposed on a first outer surface 236 of the midsole body 228 within the heel region 112 that defines a first or main cavity 240 bounded by the rear opening 232. The right disk 244 is configured to partially fit within the main cavity 240 and projects beyond the main cavity 240. The right disk 244 has a second or disk body 248 having a first or upper surface 252 (see FIG. 8), a second or bottom surface 256 opposite the upper surface 252 (see FIG. 12), and a third or circumferential surface 260 connecting the upper surface 252 to the bottom surface 256 along a second outer surface 264 of the right disk 244. An actuator mechanism 268 embodied as a plurality of disk teeth 272 projects from the circumferential surface 260 and is rigidly connected to the disk body 248. In other words, the plurality of disk teeth 272 of the right disk 244 are circumferentially disposed thereon. The plurality of disk teeth 272 are disposed to be exposed outside the main cavity 240 of the sole structure 104 of the footwear 200. The upper surface 252 of the right disk 244 includes a cord retainer 276 for securing or holding a cord or lace 280. The cord 280 is fixed to the cord retainer 276 by a first end 284, extends through the upper 212 and then through the plurality of eyelets 220, and then extends to and is fixed to the cord retainer 276. When the cord 280 is under tension, a downward or compressive force 288 presses against the footwear 200, such as the midfoot region 110 of the right shoe 208.

[0038] Referring to FIG. 5, the footwear 200 is configured as a right shoe 208 having a right disk 244 and a left shoe 292 having a left disk 296. The left shoe 292 and the left disk 296 are identical but mirror-image elements corresponding to those introduced as part of the right shoe 208 and the right disk 244 including a plurality of disk teeth 272. The plurality of disk teeth 272 of the right disk 244 are configured to mesh or engage with the plurality of disk teeth 272 of the left disk 296. For example, when the plurality of disk teeth 272 of the right disk 244 engage with the plurality of disk teeth 272 of the left disk 296, an exemplary right tooth 300 of the plurality of disk teeth 272 of the right disk 244 contacts an exemplary left tooth 304 of the plurality of disk teeth 272 of the left disk 296. Upon contact, a lateral force 308 from either the left tooth 304 or the right tooth 300 can be transmitted to the other of the left tooth 304 and the right tooth 300. Transmission of the lateral force 308 to the left tooth 304 tends to generate a rotational force 312 in the left disk 296, and transmission of the lateral force 308 to the right tooth 300 tends to generate a rotational force 312 in the right disk 244. Thus, when the left disk 296 engages the right disk 244, the left disk 296 and the right disk 244 can be rotated. The initiation of rotation in either the right disk 244 or the left disk 296 can be increased or decreased by the contact between the two disks 244, 296. Additionally, for more details on how the rotation of the two disks 244, 296 can be driven by the energy stored in the cord 280, refer to the discussion of FIGS. 8 and 9 below.

[0039] Referring to FIG. 6, the right disk 244 of the right shoe 208 is shown to be rotatable in response to a rotational force 312. In the illustrated embodiment, a plurality of disk teeth 272 extend outwardly from the main cavity 240 around the heel end 148 of the footwear 200. In particular, the plurality of disk teeth 272 are provided within the heel region 112 along the inner 116 and outer 114 sides of the footwear 200. The right disk 244 can be rotated by applying force from various sources including manual contact, the user's hand, an opposing shoe or disk, or by pressing the plurality of disk teeth 272 against an object such as a rock, a fence, or an automobile tire.

[0040] Referring to FIG. 7, the right shoe 208 is shown without the cord 280. The midsole 224 is positioned between the outsole 166 and the upper 212. A plurality of eyelets 220 are adjacent to the shank 216 at the outer 114 and inner 116 sides. The midsole body 228 defines a second or side opening 316 that defines a first or side passage 320 on the outer 114 of the right shoe 208. A release mechanism 324 embodied as a release actuator 328 is shown protruding from the side passage 320 of the sole structure 104. The right disk 244 protrudes beyond the main cavity 240, and at least some of the plurality of disk teeth 272 are on the inner 116, the outer 114, and along the heel end 148 outside the rear opening 232 and the main cavity 240. In some embodiments, the plurality of disk teeth 272 protrude only outside the rear opening 232 on the inner 116 or outer 114. In the illustrated embodiment, the release mechanism 324 is disposed within the sole structure 104 and in front of the right disk 244. In some embodiments, the release mechanism 324 may be disposed behind the right disk 244, or in the same range as the foremost or rearmost point of the right disk 244. In some embodiments, the release mechanism 324 is disposed on the upper 102. In some embodiments, the release mechanism 324 is disposed on the inner 116 or within the instep region 160. In some embodiments, the release mechanism 324 is disposed in the forefoot region 108 or the heel region 112.

[0041] FIG. 8 shows an arrangement in which cord 280 extends from cord holder 276 of right disk 244 to a plurality of eyelets 220 and then returns to cord holder 276. Cord 280 is configured without coil 332 (see FIG. 9). Cord 280 includes a third or cord body 336 having a first end 284 and a second end 340 on the opposite end of cord body 336. Cord 280 is flexible and can transmit tension or tensile force. In some embodiments, the cord is made of fabric, fabric coated with plastic, or flexible plastic braided cord. Cord holder 276 of right disk 244 has a first center 344 that intersects a first axis 348 protruding vertically from upper surface 252. Right disk 244 rotates about first axis 348 in heel region 112. In some embodiments, first axis 348 is disposed perpendicular to central axis 118 (see FIG. 1). In some embodiments, first axis 348 intersects central axis 118 of right shoe 208 (see FIG. 3). In some embodiments, first axis 348 does not intersect central axis 118 of right shoe 208 (see FIG. 3). Cord holder 276 includes a first or disk post 352 that connects to a first holder 356 configured to secure first end 284 of cord 280 and a second holder 360 configured to secure second end 340 of cord 280. Disk post 352 intersects first axis 348 and further includes a third or upper opening 364 that defines a second or upper cavity 368. First end 284 and second end 340 can be held or secured by forming knots at first end 284 and second end 340 for holding in first holder 356 or second holder 360 by welding, overmolding, interference fit, by an adhesive, or by wrapping first end 284 and second end 340 around disk post 352 for securing cord 280 to cord holder 276. The first or upper edge 372 of upper surface 252 contacts circumferential surface 260 and has a circular shape centered about first axis 348. A plurality of disk teeth 272 project radially outward from upper edge 372 away from first axis 348.

[0042] In some embodiments, the first end 284 is fixed to the first retainer 356 of the cord retainer 276. In some embodiments, the cord 280 is wound around the circumference 376 of the cord retainer 276 before the cord 280 passes through the left sleeve or sheath 380 (see FIG. 9). The cord 280 extends through one of the plurality of eyelets 220 on the inner side 116 (see FIG. 7), then extends to one of the plurality of eyelets 220 on the outer side 114 (see FIG. 7), and travels back and forth until the cord 280 connects the plurality of eyelets 220 on the inner side 116 to the plurality of eyelets 220 on the outer side 114. The cord 280 extends into the right sleeve or sheath 384. The cord 280 extends to the cord holder 276.

[0043] Referring to FIG. 9, in some embodiments, the cord 280 is wound around the circumference 376 of the cord retainer 276 before fixing the second end 340 of the cord 280 to the cord retainer 276, thereby forming the coil 332. The second end 340 of the cord 280 is fixed to the second retainer 360. When arranged in this way, when the right disk 244 receives the rotational force 312 (see FIG. 6) and causes rotation, the cord 280 winds around or unwinds around the circumference 376 of the cord retainer 276. Also, the tension of the cord 280 is stored as potential energy 388. When the cord 280 winds around the cord retainer 276, the cord 280 forms a coil 332 around the circumference 376 of the cord retainer 276, and the amount of potential energy 388 stored as tension in the cord 280 increases in the tension of the cord 280. The tension of the cord 280 generates a downward force 288 in the midfoot region 110 (see FIG. 4). As the size of the coil 332 increases, the amount of potential energy 388 stored as tension in the cord 280 increases. As the amount of potential energy 388 stored as tension in the cord 280 increases, the magnitude of the downward force 288 increases.

[0044] Referring to FIGS. 8 and 9, in some embodiments, the left sheath 380 and the right sheath 384 (see FIG. 8) are made of a relatively hard, rigid, and dense material compared to the material of the cord 276. In some embodiments, the left sheath 380 and the right sheath 384 can be made of a flexible or rigid plastic material. In some embodiments, the two sheaths 380, 384 help guide the cord 280 to the cord retainer 276. In some embodiments, the left sheath 380 and the right sheath 384 cause the cord 280 to reach the rear opening 232 through the upper 212, outside the upper 212, or inside the upper 212, and also through the midsole 224 (see also FIG. 4).

[0045] Referring to FIG. 10, the outer side 114 of the right shoe 208 shows a cord 280 extending through a plurality of eyelets 220 on the outer side 114 of the upper 212. The plurality of disk teeth 272 of the right disk 244 extend outward from the rear opening 232 and the main cavity 240 on the outer side 114 and the heel end 148. The midsole body 228 defines a side opening 316 that defines a side passage 320. The release actuator 328 projects through the side passage 320.

[0046] Referring to FIG. 11, the disk post 352 of the code holder 276 of the right disk 244 intersects the first axis 348 and is connected to the first holder 356 and the second holder 360. In some embodiments, the right disk 244 is made of a rigid plastic or metal material. In some embodiments, the first holder 356 is offset 180° around the first axis 348 from the second holder 360. In some embodiments, the first holder 356 and the second holder 360 are configured as open loops or closed loops (see FIGS. 8 and 9) to facilitate holding or fixing the first end 284 and the second end 340 of the cord 280. The circumferential surface 260 includes a fourth or radial surface 392, a fifth or left surface 396, and a sixth or right surface 400. The radial surface 392 extends radially outward from the first axis 348 and is located between each of the plurality of disk teeth 272 along the circumferential surface 260. Each of the plurality of disk teeth 272 has a left surface 396 facing one of the adjacent teeth of the plurality of disk teeth 272 and a right surface 400 facing away from the left surface 396. That is, the left surface 396 faces the plurality of disk teeth 272 on one side, and the right surface 400 faces the plurality of disk teeth 272 on the other side. The engagement or meshing of the right teeth 244 and the left teeth 304 (see FIG. 5) occurs at either the left surface 396 or the right surface 400.

[0047] Referring to FIG. 12, the right disk 244 includes a disk body 248 having a bottom surface 256. The bottom surface 256 intersects the first axis 348 and defines a fourth or lower opening 404 that defines a third or lower cavity 408. The bottom surface 256 contacts the circumferential surface 260 along a second or lower edge 412 and is spaced from the lower opening 404. The lower edge 412 is circular in shape. In some embodiments, the lower opening 404 is cylindrical in shape and is a "blind hole". That is, the lower opening 404 does not extend through the right disk 244 and does not reach the upper surface 252.

[0048] Referring to FIGS. 13 and 14, cover 416 is configured to partially hold right disk 244 (see FIGS. 11 and 12). Cover 416 has a fourth or cover body 420 having a seventh or upper surface 424 (FIG. 13) and an eighth or lower surface 428 (FIG. 14). Cover body 420 has a first or narrow section 432 and a second or wide section 436. Wide section 436 is wider than narrow section 432 and includes a plurality of skirts 440 that project from lower surface 428 along a portion of a third or cover edge 444 that defines the perimeter of lower surface 428. Narrow section 432 includes a second or cover post 448. In some embodiments, cover post 448 is cylindrical, projects from upper surface 424 more than the plurality of skirts 440, and is centered about a second axis 452.

[0049] Referring to FIGS. 15 and 16, the housing 456 has a fifth or housing body 460 having a ninth or housing surface 464 bounded by a perimeter defined by a fourth or housing edge 468. The housing surface 464 defines a third or lower section 472 and a fourth or upper section 476 separated by a fifth or engagement section 480. The lower section 472 has a third or housing post 484 projecting from the housing surface 464. In some embodiments, the housing post 484 is cylindrical in shape and a third axis 492 extends centrally therethrough. The upper section 476 projects from the housing surface 464 and includes a plurality of side walls 496 along a portion of the housing edge 468. The upper section 476 includes a first or outer region 500, a second or inner region 504, and a third or upper region 508. The outer region 500 includes a side opening 316 defining a side passage 320, at least one of the plurality of side walls 496, and a deflector 512 positioned between the outer region 500 and the inner region 504. The deflector 512 projects from the housing surface 464 and has a tenth or deflector surface 516 facing the side opening 316 at a first acute angle 520. The inner region 504 includes at least one of the plurality of side walls 496 and contacts the engagement section 480, the upper section 508, and the deflector 512. The upper section 508 includes at least one of the plurality of side walls 496 and contacts the inner section 504.

[0050] Referring to FIG. 17, the housing 456 is shown to have a spring 524 disposed in an upper region 508 of the upper section 476, a right disk 244 held in the lower section 472, and a tension lock 528 having a release actuator 328. The tension lock 528 has a sixth or lock body 532 that defines an engagement body 536, a deflection body 540, and an elongated body 544 that connects the engagement body 536 to the deflection body 540. The deflection body 540 is configured to be disposed in the outer region 500 and has a release actuator 328 that projects toward or through the side opening 316. The deflection body 540 defines an eleventh or deflection surface 548. The deflector surface 516 of the deflector 512 is configured to face the deflection surface 548 of the deflection body 540. The engagement body 536 has a twelfth or spring seat surface 552 that faces the spring 524 and is away from the lower section 472 so that the spring 524 can press or compress the engagement body 536. The engagement body 536 has a thirteenth or engagement surface 556 having a closure mechanism embodied as a plurality of engagement teeth 564 that face the lower section 472.

[0051] The right disk 244 is in a locked configuration 568 when a plurality of engaging teeth 564 engage or mesh with a plurality of disk teeth 272 of the right disk 244. The spring 524 biases the tension lock 528 into contact with the right disk 244. The right disk 244 is held within the lower section 472 of the housing 456 by the housing post 484 of the housing 456 being inserted or held within the lower cavity 408 of the lower opening 404 of the right disk 244. In the locked configuration 568, a third axis 492 of the housing post 484 of the housing 456 aligns with a first axis 348 of the right disk 244. In the locked configuration 568, a release actuator 328 of the tension lock 528 projects beyond the housing 456 and the side opening 316. The plurality of engaging teeth 564 are configured such that by overcoming the compression of the spring 524 and rotating each of the plurality of disk teeth 272 relative to each of the plurality of engaging teeth 564, the plurality of disk teeth 272 can overcome the bias of engagement with the plurality of engaging teeth 564. To that end, the plurality of engaging teeth 564 and / or the plurality of disk teeth 272 can include inclined surfaces that form a cam action interface 569 to provide a mechanical advantage to help overcome the biasing force of the spring 524. The cam action interface 569 may be disposed on only one side of the teeth 564, 272 so as to correspond to rotation in a direction that will further wind the cord 280 around the cord retainer 276 in the locked configuration 568, whereby tightening adjustment can be made by rotation in that winding direction. On the opposite side of the teeth 564, 272, such a cam action surface 569 may not be formed, thereby resisting or preventing unwinding or slack adjustment due to rotation of the right disk 244 in the opposite direction while in the locked configuration 568.

[0052] In some embodiments, the lock configuration 568 can be configured to require a significant amount of force to overcome the spring 524, and thus, once the tension on the cord 280 is set, the magnitude of the downward force 288 on the midfoot region 110 (see FIG. 4) can be set and then maintained. In this way, with the lock configuration 568, the adjustment of the compression of the midfoot region 110 applied by the downward or compressive force 288 can be selectively adjusted, set, and maintained by the operation of the tension lock 528. Additionally, audible feedback, such as a clicking sound, is generated by the biasing engagement between the plurality of engagement teeth 564 and the plurality of disk teeth 272 during rotation in the winding direction. The audible feedback is a function of the spring 524 that biases or presses the plurality of engagement teeth 564 against the plurality of disk teeth 272. The audible feedback can indicate to the user that the right disk 244 is rotating in the winding direction, and thus, the footwear 200 is increasing the tightening.

[0053] Referring to FIG. 18, the plurality of engagement teeth 564 of the tension lock 528 can be moved out of engagement with the plurality of disk teeth 272 (see FIG. 17) by the action of a first or actuating force 572 directed in a direction toward the inner region 504 by the release actuator 328. Thus, the release actuator 328 is pushed toward the inner region 504 by the actuating force 572. In some embodiments, the release actuator 328 may be fully pushed into the outer region 500, and in some embodiments, the release actuator 328 may be partially pushed into the outer region 500 by the actuating force 572. The actuating force 572 transmits a force to the deflecting body 540, and as a result, the deflecting surface 548 contacts and slides along the deflecting surface 516 of the deflector 512 that moves the engaging body 536 having a second or unlocking force 576 away from the lower section 472 toward the spring 524. The engaging body 536 is configured to fit within the plurality of side walls 496 such that when the engaging body 536 receives the actuating force 572 and the unlocking force 576, the engaging body 536 can move away from the outer region 500 and toward the upper region 508. The right disk 244 enters an unlocked configuration 580 when the engaging body 536 overcomes the biasing force of the spring 524 and the plurality of engagement teeth 564 are disengaged from the plurality of disk teeth 272 of the right disk 244 (see FIG. 17).

[0054] In the unlocking configuration 580, adjusting the tension of the cord 280 does not require a significant amount of force, and thus, the tension on the cord 280 (see FIG. 10) can be adjusted, thereby changing the magnitude of the downward force 288 on the midfoot region 110 (see FIG. 4) before engaging the plurality of engagement teeth 564, and the downward force 288 can be set or adjusted as desired. In this way, in the unlocking configuration 580, the adjustment of the compression of the midfoot region 110 applied by the downward force 288 can be selectively adjusted by disengaging the plurality of engagement teeth 564 of the tension lock 528. When the plurality of engagement teeth 564 are in the unlocking configuration 580 and the cord 280 is wound around the cord retainer 276 to form the coil 332, the potential energy 388 stored in the cord 280 is released, assisting in the unwinding of the cord 280 around the circumference 376 of the cord retainer 276 and thus the right disk 244. In this way, the release of the compression on the midfoot region 110 is facilitated.

[0055] Referring to FIGS. 19 and 20, cross-sections of the cover 416, the right disk 244, and the housing 456 are shown such that the first axis 348 of the right disk 244 coincides with the second axis 452 of the cover 416 and the third axis 492 of the housing 456. The cover 416, the right disk 244, and the housing 456 are all assembled and configured to be inserted into a main cavity 240 formed by a rear opening 232 of the midsole 164 (see FIG. 4). The cover posts 448 of the cover 416 are configured to fit into the upper cavity 368 of the right disk 244, and the housing posts 484 of the housing 456 are configured to fit into the lower cavity 408 of the right disk 244. The plurality of skirts 440 of the cover 416 are configured to hold the plurality of side walls 496 of the housing 456. The right disk 244 can rotate freely about the first axis 348 while being confined, held, and fixed between the cover 416 and the housing 456, and at least some of the plurality of disk teeth 272 project outwardly from the main cavity 240 of the midsole 224 (see FIG. 4). The narrow section 432 of the cover 416 is aligned with the lower section 472 of the housing 456 when the second axis 452 and the third axis 492 coincide. The wide section 436 of the cover 416 is aligned with the upper section 476 of the housing 456 when the plurality of skirts 440 are fixed to the plurality of side walls 496.

[0056] Referring to FIG. 20, when the cover 416, the housing 456, and the right disk 244 are assembled together, the assembly is the disk heel fastener 584. When assembled as the disk heel fastener 584, the volume of the space between the lower surface 428 and the upper surface 252 defines a fourth or cord cavity 588. When the right disk 244 is rotated by a rotational force 312 (see FIG. 6) in, for example, a first direction or a clockwise direction CW as viewed from above the footwear 200 downward, the cord 280 extends around the circumference 376 of the cord retainer 276 (see FIGS. 8 and 9) within the cord cavity 588, increasing the size of the coil 332 of the cord 280 around the circumference 376 of the cord retainer 276. Further, when the release mechanism 324 is actuated and the right disk 244 is in the unlocked configuration, the rotational force 312 can be applied in a second direction or a counterclockwise direction CCW as viewed from above the footwear 200 downward, decreasing the size of the coil 332 of the cord 280 around the circumference 376 of the cord retainer 276. Thus, the disk heel fastener 584 provides a way to tighten or loosen the midfoot region 110 of the footwear 200 without the need to tie a shoelace.

[0057] Further, due to the spacing and arrangement of the plurality of teeth 272 around the circumference of the right disk 244, further rotation in the first direction CW allows for a step - by - step adjustment when tightening the footwear 200 according to the user's preference and comfort. In some embodiments, the magnitude of the step - by - step adjustment is a function of the radial spacing and size of the plurality of teeth 272 of the right disk 244 and / or the left disk 296, similar to the lateral spacing and size of the plurality of engaging teeth 564 (see FIG. 17). For example, by reducing the magnitude of the radial spacing of the plurality of teeth 272 and the lateral spacing of the plurality of engaging teeth 564, a smaller or finer step - by - step adjustment can be made. Naturally, it is contemplated that the footwear 200 will be tightened or adjusted to a tightened configuration when the compressive force 288 is applied to the user's foot. As described herein, the footwear 200 can be adjusted step - by - step to increase the compressive force 288 within the tightened configuration. Further, the footwear 200 is considered to be in a relaxed configuration when the compressive force 288 is not applied to or not sensed by the user's foot, or when the footwear 200 is in an unlocked configuration and the compressive force 288 can be easily overcome, whereby the user can remove the footwear 200 from the foot.

[0058] The left disk 296 is understood to be similar to the right disk 244 but operating in a mirror - imaged manner. In some embodiments, the left disk 296 is rotated in a second direction CCW to tighten the footwear 200 and rotated in the first direction CW to loosen the footwear 200 when in an unlocked configuration. However, it is within the scope of the present disclosure that the first direction CW and the second direction CCW may be reversed for tightening or loosening the right disk 244 and the left disk 296. In some embodiments, the right disk 244 and the left disk 296 of the footwear 200 are not mirror - imaged and instead are both configured to be tightened by rotation in the first direction CW or the second direction CCW.

[0059] According to some embodiments of the present disclosure, a user can unlock one of the right disk 244 or the left disk 296 and then apply a rotational force 312 to the other of the right disk 244 or the left disk 296 to adjust the tightening. For example, the right disk 244 is unlocked by the actuation of a release mechanism 324, and then, when the left disk 296 moves forward, for example, rubs or slides, that is, when moving from the heel end 148 towards the toe end 142, the left disk 296 can be tightened by engaging a plurality of teeth 272 of the left disk 296 with a plurality of teeth 272 of the right disk 244. Since the left disk 296 is in a locked configuration, rotation in the first direction CW is prevented, enabling the user to tighten one foot at a time without having to bend over to tie the string or manually rotate the disks 244, 296.

[0060] In another example, the operating directions of the right disk 244 and the left disk 296 are reversed to move one disk backward relative to the other for tightening. For example, the right disk 244 is configured to rotate in a second direction CCW to tighten the footwear 200 and, when in the unlocked configuration, rotate in a first direction CW to loosen the footwear 200. Thus, the left disk 296 is configured to rotate in the first direction CW to tighten the footwear 200 and the second direction CCW is configured to loosen the footwear 200 when in the unlocked configuration. In this way, the user can place one foot on the ground, shift their weight to that foot with the other foot raised or lightly touching the ground, position one disk in front of the other disk, and then slide the forward-positioned disk backward, i.e., move from the toe end portion 142 toward the heel end portion 148, to tighten the foot wearing the raised foot. In some embodiments, the left disk 296 is placed on the ground and the right disk 244 is positioned adjacent thereto in front, e.g., in the midfoot region 110 or the forefoot region 108 of the footwear 200 of the left foot, and the backward movement of the right disk 244, or other portions of the footwear 200 of the right foot, exerts a rotational force 312 on the left disk 296 to tighten the footwear 200 of the left foot. A mirroring operation can be performed to tighten the footwear 200 of the right foot. In this way, the user can quickly adjust the tightening of one or both of the footwear 200, which can be advantageous in time-limited situations such as during competition.

[0061] The release mechanism 324 is disposed within the midfoot region 110 of the instep region 160 of the sole structure 104, enabling the user to activate the release mechanism 324 and unlock one foot with the opposite foot, thereby reducing the need for the user to manually activate the release mechanism with their hand. As a result, the aforementioned operations regarding the tightening of the footwear 200 can be reversed to loosen the footwear 200. In this way, the user can quickly remove the footwear 200 from one or both feet without bending down or manually handling the footwear 200, which can be advantageous for users who have difficulty removing it or are hindered from removing it. Additionally, removing the footwear 200 without manually handling it can promote cleanliness, for example, by enabling the user to quickly remove and take off the footwear 200 before entering their residence.

[0062] Also, either of the disks 244, 296 may be provided or modified to include a closure mechanism similar to those disclosed and described in U.S. Patent Nos. 5,325,613, 5,600,875, 5,606,778, 5,638,588, 5,651,198, and U.S. Patent No. 5,669,116 (all of which are commonly assigned to Puma SE and incorporated herein by reference in their entirety). The disks 244, 296 are used in conjunction with the cord 280 and, when attached to the footwear 200 of the present disclosure, may be modified to include a closure mechanism instead of or in addition to the head to provide an additional tightening function as contemplated.

[0063] In other embodiments, other configurations are possible. For example, the specific features and combinations of features presented with respect to a particular embodiment in the above discussion can be utilized in other embodiments and other combinations as needed. Further, any of the embodiments described herein can be modified to include any of the structures or methods disclosed in relation to other embodiments. Additionally, the present disclosure is not limited to the specifically shown types of footwear. Further, any aspect of the footwear of any of the embodiments disclosed herein may be modified to function with any type of footwear, clothing, or other athletic equipment.

[0064] As previously mentioned, the present invention has been described above in relation to specific embodiments and examples, but the present invention is not necessarily so limited, and numerous other embodiments, examples, uses, variations, and departures from the embodiments, examples, and uses are intended to be encompassed by the claims appended hereto, as will be understood by those skilled in the art. The entire disclosure of each patent and publication cited herein is incorporated herein by reference as if each such patent or publication were individually incorporated herein by reference. The various features and advantages of the present invention are set forth in the following claims.

Industrial Applicability

[0065] In view of the foregoing description, numerous variations to the present invention will be apparent to those skilled in the art. Accordingly, this description should be construed as illustrative only and is presented for the purpose of enabling those skilled in the art to practice and use the present invention. Exclusive rights are reserved for all variations within the scope of the appended claims.

[0066] [Cross - Reference to Related Applications] This application claims the benefit and priority of U.S. Provisional Application No. 63 / 343,803, filed May 19, 2022, the entire disclosure of which is incorporated herein by reference.

Claims

1. An upper attached to a sole structure, the sole structure including a midsole extending within the heel area of ​​the footwear, A disc having a first axis defined, positioned within the midsole in the heel region, and having a first surface with a cord holder and a second surface with a plurality of teeth, A cord having a first end and a second end, configured such that a first tension is applied to the cord, comprising: The first surface is perpendicular to the second surface, The cord retainer includes a post that defines an opening intersected by the first axis, the post being connected to at least one retainer loop, At least one of the first end and the second end of the cord is held in the at least one retainer loop of the cord retainer. Footwear in which, when the disc is rotated in a first direction about the first axis, a first tension is applied to the cord so that the length of the cord is wrapped around the post of the cord holder.

2. The footwear according to claim 1, wherein the plurality of teeth are arranged circumferentially on the disc.

3. The footwear according to claim 2, wherein the plurality of teeth extend outward from the disc.

4. The footwear according to claim 3, wherein the plurality of teeth are exposed on the outside of the footwear.

5. The footwear according to claim 1, wherein the first axis is arranged perpendicular to a central axis that intersects with the toe and heel ends of the footwear.

6. The footwear according to claim 1, wherein the cord extends through a plurality of eyelets arranged on the upper.

7. The upper is attached to the sole structure, Multiple eyelets arranged on the upper, Displaced within the cavity in the sole structure, defining a first axis, and having a cord holder and a disk with multiple teeth protruding outward from the cavity, A release mechanism operably connected to the disk, A cord having a first end and a second end, The cord retainer includes a post that defines an opening intersected by the first axis, the post being connected to at least one retainer loop, At least one of the first end or the second end of the code is held within the at least one retainer loop. Footwear in which, when the disc is rotated about the first axis, the cord is configured to adjust the tightness of the footwear, and the length of the cord is wrapped around the post of the cord holder.

8. The footwear according to claim 7, wherein the footwear is configured to be unlocked by the operation of the release mechanism.

9. The release mechanism is disposed within the sole structure, as described in claim 8.

10. The release mechanism protrudes from the sole structure, as described in claim 9.

11. The footwear according to claim 7, wherein the cord is configured to adjust the footwear to a tightened configuration when the disc is rotated in a first direction about the first axis.

12. The footwear according to claim 11, wherein further rotation of the disc in the first direction about the first axis causes a gradual tightening of the footwear.

13. The footwear according to claim 11, wherein when the release mechanism is activated, the disc is configured to rotate in a second direction around the first axis, and the footwear is configured to be adjusted to a loose configuration.

14. Displaced within the sole structure, defining a first axis, having a cord holder and a plurality of teeth protruding outward from the sole structure, the plurality of teeth extending outward from the sole structure along the inner and outer sides of the right shoe, A release mechanism operably connected to the aforementioned right disk, A right shoe, including a cord operably fixed to the cord holder, Displaced within the sole structure, defining a second axis, and having a cord holder and a plurality of teeth protruding outward from the sole structure, the plurality of teeth extending outward from the sole structure along the inner and outer sides of the left shoe to a left disc, A release mechanism operably connected to the left disk, A left shoe comprising a cord operably fixed to the cord holder, A fastener system for footwear, wherein when the right disc and the left disc are moved relative to each other, one of the right disc or the left disc is configured to rotate by engagement with the plurality of teeth of the other of the right disc or the left disc, thereby adjusting the tightness of at least one of the right shoe or the left shoe.

15. The fastener system according to claim 14, wherein the left disc is configured to adjust the tightness of the left shoe when the right shoe is moved backward.

16. The fastener system according to claim 14, wherein the release mechanism of the left shoe is configured to act to unlock the left disc, and the release mechanism of the right shoe is configured to act to unlock the right disc.

17. The fastener system according to claim 14, wherein the right disc of the right shoe is configured to rotate in a first direction about a first axis to adjust the tightness of the right shoe, and the left disc of the left shoe is configured to rotate in a second direction about a second axis to adjust the tightness of the left shoe, the first direction and the second direction being opposite to each other.

18. The fastener system according to claim 14, wherein each of the right disc and the left disc is positioned within the heel region of the sole structure.

19. The fastener system according to claim 18, wherein the release mechanism of the right disc is located in front of the right disc within the sole structure, and the release mechanism of the left shoe is located in front of the left disc within the sole structure.

Images