Sole structure and article of footwear with separate outsole and midsole components

Abstract

Articles of footwear according to some aspects of the present technology include a simple construction in which each component is made of a single material and assembled together in a releasable manner. The present invention enhances the recoverability and sustainability of articles of footwear and footwear. At least one particular aspect of the present technology relates to a footwear structure that may include three major portions: (a) a housing that may include a single piece having the following features: (i) a footwear upper, and (ii) a sole structure having one or more friction element attached housings; (b) an inner upper component; and (c) a base and heel stabilizer component, the base and heel stabilizer component having a bottom surface including one or more friction element attachment inserts and supports fitted inside the one or more friction element attachment housings. Another more specific aspect of the present technology relates to a footwear structure that may include two major portions: (a) a foot support component having the following features: (i) an upper portion, and (ii) a Stenobel structure attached to the upper portion, the Stenobel structure including a bottom surface having a plurality of sole locking inserts; and (b) a sole structure component having the following features: (i) an outsole component, and (ii) a midsole component positioned between the outsole component and the strobel structure, the midsole component including a plurality of sole cavities, with each of the plurality of sole locking inserts fitted inside a corresponding each of the plurality of sole cavities.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to U.S. Provisional Patent Application No. 63 / 395,557, filed on August 5, 2022, entitled “Sole Structures and Articles of Footwear Having Separate Outsole and Midsole Components,” which is incorporated herein by reference in its entirety and made a part hereof. Technical Field

[0003] The present invention relates to the field of footwear. More specifically, aspects of the present invention relate to traction friction elements, footwear sole structures including such traction friction elements, and footwear articles (e.g., athletic shoes) including such traction friction elements and sole structures having separate outsole components and midsole components. Additional aspects of the present invention relate to methods of making footwear sole structures and / or footwear articles including such traction friction elements, which have separate outsole components and midsole components. Background Art

[0004] Footwear with spikes provides enhanced traction for athletes in various activities, such as baseball, softball, football, soccer, golf, etc. The spikes provided on such footwear may have different sizes, shapes, orientations, and arrangements on the sole structure of the footwear, e.g., for different activities and / or for use in different field conditions. Summary of the invention

[0005] The present invention generally provides articles of footwear according to aspects of the present technology, which include a simple construction comprising three main parts, each of which is made of a single material and releasably assembled together. Aspects of the present technology can enhance the recyclability and sustainability of articles of footwear and their component parts.

[0006] According to one embodiment, a footwear structure may include: an outer cage component formed as an integral, single-piece construction and a foot support component formed as an integral, single-piece construction. The outer cage component may include: (i) an outsole portion, which includes a plurality of traction friction elements, and (ii) an upper portion. The outer cage component may define an internal chamber, wherein the internal chamber includes a footbed portion formed by an internal surface of the outsole portion. The footbed portion may include a plurality of recesses, wherein each of the plurality of recesses may extend into the interior of each of the plurality of traction friction elements, and an undercut may be defined within the interior of each of the plurality of traction friction elements. The foot support component may include: (i) a top surface for supporting the entire plantar surface of the wearer's foot, and (ii) a bottom surface opposite the top surface. The bottom surface may include a plurality of traction friction element inserts. Each of the plurality of traction friction element inserts may extend into a corresponding one of the plurality of recesses. Each of the plurality of traction friction element inserts may include an enlarged free end that is positioned to engage a corresponding undercut and secure each of the plurality of traction friction element inserts within a corresponding one of the plurality of recesses. Additionally, the footwear structure may include an inner upper component formed as an integral, one-piece construction. The inner upper component may define a foot receiving chamber that includes a bottom surface, a heel receiving area, a midfoot receiving area, and a forefoot receiving area. The inner upper component may be formed of a fabric material. The bottom surface may include a plurality of openings, wherein each of the plurality of openings is at least partially aligned with a corresponding one of the plurality of recesses.

[0007] According to another embodiment, a footwear structure may include a foot support component formed as an integral, one-piece structure and a sole structure component formed as an integral, one-piece structure. The foot support component may include: (i) an upper portion defining an internal chamber, and (ii) a strobel structure attached to the upper portion, the strobel structure including a top surface for supporting the entire plantar surface of the wearer's foot and a bottom surface opposite to the top surface. The internal chamber may include a footbed portion formed by the interior surface of the upper portion. The bottom surface may include a plurality of sole locking inserts. The sole structure component may include: (i) an outsole component including a ground contacting surface for directly engaging the ground, and (ii) a midsole component located between the outsole component and the strobel structure. The midsole component may include a midsole surface including a plurality of sole cavities. Each of the plurality of sole cavities may include a recess extending into the interior of the sole cavity, and an undercut may be defined within the interior of each of the plurality of sole cavities. Each of the plurality of sole locking inserts may extend into a corresponding one of the plurality of recesses. Each of the plurality of sole locking inserts may include an enlarged free end positioned to engage a corresponding undercut and secure each of the plurality of sole locking inserts within a corresponding one of the plurality of recesses.

[0008] Other features and advantages of the present invention will become apparent from the following description taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The following detailed description will be better understood when considered in conjunction with the accompanying drawings, in which like reference numerals represent the same or similar elements throughout the various views in which such reference numerals appear.

[0010] Figure 1 Component views of articles of footwear according to some examples of the present technology are provided.

[0011] FIG. 2A to FIG. 2D Some examples of the present technology are provided. Figure 1 Various views of an outer cover component of an article of footwear.

[0012] Figure 2E According to some examples of the present technology, a cover component of a footwear article is provided along Figure 2A A cross-sectional view taken along section line 2E-2E in FIG.

[0013] Figure 3A and Figure 3B Views of interior upper components of articles of footwear according to some examples of the present technology are provided.

[0014] Figure 4A and Figure 4B Views of foot-supporting components of articles of footwear according to some examples of the present technology are provided.

[0015] Figure 5A and Figure 5B A side perspective view of a traction element insert engaged with a traction element housing according to examples and aspects of the present technology is provided.

[0016] Fig. 6A Top views of articles of footwear according to some examples of the present technology are provided.

[0017] Figure 6B According to some examples of the present technology, a footwear article is provided along Fig. 6A A cross-sectional view taken along section line 6B-6B in FIG.

[0018] Figure 6C A rear perspective cut-away view of an article of footwear according to some examples of the present technology is provided, highlighting the engagement between a traction element insert and a traction element shell.

[0019] Fig. 7A Component views of another article of footwear according to some examples of the present technology are provided.

[0020] Figure 7B Component views of another article of footwear according to some examples of the present technology are provided.

[0021] Figure 7C Component views of Strobel structures from articles of footwear and footwear sole structures according to some examples of the present technology are provided.

[0022] FIG. 8A to FIG. 8C Some examples of the present technology are provided. Fig. 7A Various views of a foot-supporting component of an article of footwear.

[0023] Fig.8D A bottom perspective view of a Strobel structure of an article of footwear according to some examples of the present technology is provided.

[0024] Fig.9A , Fig. 9B and Fig. 9C Views of footwear sole structures for articles of footwear according to some examples of the present technology are provided.

[0025] Fig. 10A Top views of articles of footwear according to some examples of the present technology are provided.

[0026] Fig. 10B and Fig. 10C Some examples of the present technology are provided. Fig. 10AVarious views of footwear articles.

[0027] Fig. 10D A cross-sectional view of an article of footwear according to some examples of the present technology is provided, taken along section line 10D-10D in FIG. 12A.

[0028] Fig.10E A rear perspective cut-away view of an article of footwear according to some examples of the present technology is provided, highlighting the engagement between a sole locking insert and a sole cavity. DETAILED DESCRIPTION

[0029] In the following description of various examples of footwear structures and components according to the present technology, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various example structures and environments in which aspects of the present technology may be practiced. It should be understood that other structures and environments may be utilized, and that structural and functional modifications may be made to the specifically described structures, functions, and methods without departing from the scope of the present disclosure.

[0030] As used herein, the term "footwear" refers to any type of wearable garment for the feet, and the term includes, but is not limited to, all types of shoes, boots, athletic shoes, sandals, flip-flops, flip-flops, slippers, sleep shoes, loafers, sport-specific shoes (such as golf shoes, running shoes, casual shoes, tennis shoes, baseball shoes, soccer shoes or football shoes, ski boots, basketball shoes, cross-training shoes, dance shoes, urban dance shoes, etc.), and the like.

[0031] As used herein, the terms "removably engaged" or "removably attached" (unless otherwise specified or clear from the context) mean that two "engaged" or "attached" objects are designed to be repeatedly "engaged / disengaged" and / or "attached / unattached" to each other without damaging either object or the structure engaged with these objects. In other words, the terms "removably engaged" and / or "removably attached" mean that two "engaged" or "attached" objects are "non-destructively removable" and / or releasable from each other.

[0032] This application and / or claims use adjectives such as "first," "second," "third," etc. to identify certain components and / or features associated with the present technology. These adjectives are used merely for convenience, for example to help maintain the distinction between components and / or features of a particular structure. The use of these adjectives should not be interpreted as requiring a specific order or arrangement of the components and / or features in question. In addition, the use of these specific adjectives for specific structures in the specification does not require the use of the same adjective to refer to the same part in the claims (e.g., a component or feature referred to as "fourth" in the specification can correspond to any numerical adjective used for that component or feature in the claims).

[0033] Various structures and parameters of footwear and its sole structure are described based on the "longitudinal length" parameter L. The longitudinal length L can be found when the footwear and / or sole structure is oriented on its surface facing the ground on a horizontal support surface in an unloaded state (e.g., no weight is applied to it except the weight of other parts of the footwear and / or sole structure). Once so oriented, parallel vertical planes perpendicular to the horizontal support surface are oriented to contact the last heel position and the most forward toe position of the footwear and / or sole structure. The parallel vertical planes should be oriented to face each other, as far away from each other as possible, while still contacting the last heel and the most forward toe position. The direct distance between these vertical planes corresponds to the length (e.g., longitudinal length) L of the footwear and / or sole structure. The positions of some footwear components are described in this specification based on their corresponding positions along the length measured forward from the rear heel vertical plane. Along the sole length L, the last heel position is located at position 0L, and the most forward toe position is located at position 1L. The middle position along the sole length L is represented by a fractional position (e.g., 0.25L) along the sole length L measured forward from the rear heel vertical plane. As used herein, the term "parallel planes" are planes oriented parallel to the vertical plane. These parallel planes may intersect the longitudinal length or longitudinal direction somewhere between P = 0L and P = 1.0L.

[0034] As used herein, the term "rearward" means located at or toward the heel area of ​​a footwear article (or its components), and as used herein, the term "forward" means located at or toward the forefoot or forefoot area of ​​a footwear article (or its components). Unless otherwise defined, the term "heel" or "heel area" refers to the area defined by parallel planes at 0L and 0.3L, the term "midfoot" or "arch" refers to the area defined by parallel planes at 0.3L and 0.6L, and the term "forefoot" refers to the area defined by parallel planes at 0.6L and 1.0L. In addition, the term "lateral side" means the "little toe" side of a footwear article or its components (e.g., upper, sole structure, etc.), and the term "medial side" means the "big toe" side of a footwear article or its components (e.g., upper, sole structure, etc.).

[0035] I. General Description of Aspects of the Technology

[0036] An article of footwear according to some aspects of the present technology includes a simple construction comprising three main parts that are each made of a single material and releasably assembled together. Aspects of the present technology can enhance the recyclability and sustainability of an article of footwear and its component parts.

[0037] At least some more specific aspects of the present technology relate to footwear articles that may include three main parts: (a) an outer shell that may include a single piece having the following features: (i) a footwear upper, and (ii) a sole structure having one or more traction friction element shells; (b) an inner upper component; and (c) a base and heel counter component having a bottom surface that includes one or more traction friction element inserts and supports mounted within the one or more traction friction element shells.

[0038] At least some more specific aspects of the present technology relate to articles of footwear that may include two main parts: (a) a footwear upper having a strobel with one or more locking inserts; and (b) a footwear sole component having the following features: (i) a midsole having a cavity for receiving one or more locking inserts from the strobel; and (ii) an outsole component connected to the midsole component and having a ground-contacting surface forming an outer surface for directly engaging the ground.

[0039] Some additional or alternative aspects of the present technology relate to a cover component formed as an integral, one-piece construction and a foot support component formed as an integral, one-piece construction. The cover component may include: (i) an outsole portion, which includes a plurality of traction friction elements, and (ii) an upper portion, wherein the cover component defines an internal chamber, wherein the internal chamber includes a footbed portion formed by an interior surface of the outsole portion, and the footbed portion includes a plurality of recesses. Each of the plurality of recesses may extend into the interior of each of the plurality of traction friction elements and define an undercut within the interior of each of the plurality of traction friction elements. The foot support component may include: (i) a top surface for supporting the entire plantar surface of the wearer's foot, and (ii) a bottom surface opposite the top surface, wherein the bottom surface includes a plurality of traction friction element inserts. Each of the plurality of traction friction element inserts may extend into a corresponding one of the plurality of recesses. Each of the plurality of traction element inserts may include an enlarged free end positioned to engage a corresponding undercut and secure each of the plurality of traction element inserts within a corresponding one of the plurality of recesses.

[0040] Another additional or alternative aspect of the present technology relates to a foot support component formed as an integral, one-piece structure and a sole structure component formed as an integral, one-piece structure. The foot support component may include: (i) an upper portion defining an internal chamber, wherein the internal chamber includes a footbed portion formed by an internal surface of the upper portion, and (ii) a Strobel structure attached to the upper portion, the Strobel structure including a top surface for supporting the entire plantar surface of the wearer's foot and a bottom surface opposite to the top surface. The bottom surface may include a plurality of sole locking inserts. The sole structure component may include: (i) an outsole component including a ground contacting surface for directly engaging the ground, and (ii) a midsole component located between the outsole component and the Strobel structure, the midsole component including a midsole surface, the midsole surface including a plurality of sole cavities. Each of the plurality of sole cavities may include a recess extending into the interior of the sole cavity, and an undercut is defined within the interior of each of the plurality of sole cavities. Each of the plurality of sole locking inserts may extend into a corresponding one of the plurality of recesses. Each of the plurality of sole locking inserts may include an enlarged free end positioned to engage a corresponding undercut and secure each of the plurality of sole locking inserts within a corresponding one of the plurality of recesses.

[0041] Alternatively, some aspects of the present technology relate to footwear component structures and / or articles of footwear of the types described above, wherein components according to any of the above examples are permanently joined to one another (e.g., by an adhesive or bonding agent, by mechanical fasteners, etc.).

[0042] Still additional aspects of the present technology relate to methods of manufacturing the various types of footwear component structures and / or footwear articles described above, as well as methods of using the various types of footwear component structures and / or footwear articles described above (e.g., by attaching and detaching a foot-supporting component from an outer cover component, by attaching and detaching a sole structure (or at least a portion thereof) from a footwear upper component, by interchanging different outsole components on a midsole structure, by interchanging different midsole structures on an outsole component, by interchanging different sole structures on an upper component, by interchanging different upper components on a sole structure, by interchanging different foot-supporting components on a sole structure component, by interchanging different sole structure components on a footwear upper component and a Strobel structure, etc.).

[0043] Given the general description of features, examples, aspects, structures, processes, and arrangements according to certain examples of the present technology provided above, following is a more detailed description of specific example footwear component structures, footwear articles, and / or methods according to the present technology.

[0044] With reference to the figures and the following discussion, examples of footwear component structures and articles of footwear according to aspects of the present technology are described. Figure 1 The article of footwear 10 may be used, for example, but not limited to, for recreational activities, cross-training, yoga, strength training, etc. The article of footwear 10 may include an outer cover member 100, an inner upper member 160, and a foot-supporting member 200. Each of the outer cover member 100, the inner upper member 160, and the foot-supporting member 200 may be formed as an integral, one-piece construction and / or each may be made of a single material. The foot-supporting member 200 may be assembled inside the inner upper member 160, and further, the inner upper member 160 and the foot-supporting member 200 may be assembled together inside the outer cover member 100. Once the foot-supporting member 200 is assembled inside the inner upper member 160, these combined components may be assembled into the interior chamber 102 of the outer cover member 100.

[0045] In another embodiment, foot-supporting member 200 may be mounted inside outer cover member 100, and further, inner upper member 160 may be located on top of foot-supporting member 200 and mounted inside outer cover member 100. Once foot-supporting member 200 is mounted inside outer cover member 100, inner upper member 160 may be mounted into interior chamber 102 of outer cover member 100 and located on top of foot-supporting member 200.

[0046] In the accompanying drawings, Figure 2A Frontal and medial perspective views are provided; Figure 2B A rear, medial perspective view is provided; and Figure 2C A bottom, medial perspective view of a cover component 100 of an article of footwear according to some examples of the present technology is provided. Figure 2D A bottom, medial perspective view of another cover component 100B of an article of footwear according to some examples of the present technology is provided. Further, Figure 2E A cover component 100 of an article of footwear according to some examples of the present technology is provided along line 2E-2E. Figure 2A Cross-sectional view of .

[0047] Cover member 100 may include an upper portion 120 and a sole structure 140 joined to upper portion 120. In some examples, upper portion 120 and sole structure 140 may be formed as a single portion (as an integral, one-piece structure). Upper portion 120 may also be referred to as an "upper". Sole structure 140 may also be referred to as an "outsole portion". Upper portion 120 (which may be formed of one or more portions) potentially defines, together with sole structure 140, a foot-receiving interior chamber 102 for accommodating a wearer's foot.

[0048] like FIG. 2A to FIG. 2EAs further illustrated, the upper portion 120 of the cover member 100 may include other components that are joined to or integrally formed with the upper portion 120. For example, the upper portion 120 may include a tongue member 122 that is positioned across the instep region of the foot and positioned to ease the feel of the closure system of the footwear on the wearer's foot. The upper 120 may also include a heel stabilizer, a toe cap, or a fixed strap. Additionally, the upper portion 120 may include a closure system (e.g., including one or more of a lace-type closure system, a zipper-type closure system, a buckle-type closure system, an elastic stretch element, etc.). As illustrated, the closure system may include a plurality of lace engagement openings 124. The footwear article 10 may also include one or more lace elements that extend through the lace engagement openings 124. In the illustrated example, the lacing element can extend over the tongue member 122 (e.g., in a cross-shaped manner), through one or more lacing engagement openings 124L, 124M located at the lateral and medial sides of the instep portion of the upper portion 120 (and / or adjacent to the lateral and medial sides of the instep opening). The lacing element can include a fastening mechanism and / or a locking mechanism. The locking mechanism can be located at the rear heel area of ​​the upper portion 120. Further, the upper portion 120 can include a collar 126 extending around the opening 102.

[0049] like FIG. 2A to FIG. 2E As shown, the sole structure 140 of the outer cover 100 may include a plurality of traction friction elements 142 extending from the sole structure 140. As shown, the traction friction elements 142 of this example may be permanently fixed to the sole structure 140 (e.g., by molding, in-mold molding, rapid manufacturing additive manufacturing technology, etc.) and / or extend from the sole structure 140. The traction friction elements 142 may be in the shape of a square or rectangle. The traction friction elements 142 may be in other shapes, such as circular, oval, triangular or other polygonal shapes. The traction friction elements 142 may form an outer surface for directly engaging the ground (or other contact surface). The illustrated traction friction elements 142 of this example may have a similar structure (although they may have slightly different sizes and / or shapes). In view of the benefits of the present disclosure, those skilled in the art will understand that the traction friction elements 142 may have similar structures, features and / or characteristics. According to the present technology, the traction friction elements 142 may have any desired size or dimensions.

[0050] Various numbers and groups of traction elements 142 may be provided and positioned at various locations along sole structure 140, such as at the heel area, midfoot area, and / or forefoot area of ​​sole structure 140 and / or along the lateral (lateral / outside) and / or medial (medial / inside) of sole structure 140. Additionally, traction elements 142 may be provided and positioned in various patterns along the sole structure.

[0051] like Figure 2B and Figure 2E As further illustrated, the sole structure 140 and the interior chamber 102 of the outer cover component 100 may include a footbed portion 148 of the sole structure 140. The footbed portion 148 may extend from the toe of the sole structure 140 to the heel along the medial and lateral sides. The footbed portion 148 may include one or more traction element housings 150. The traction element housings 150 may be defined by holes in the interior chamber 102 of the outer cover component 100 and the footbed portion 148, such that the interior of the traction element 142 is hollowed out to form the traction element housings 150. For each traction element housing 150, the footbed portion 148 may also include a recess 152 extending into the interior of the traction element housing 150. The recess 152 may be positioned around the traction element housing 150 on the footbed portion 148. Further, each traction element housing 150 may include an undercut portion within the interior of the traction element housing 150. See also Figure 5A and Figure 5B The interior surface defined by recess 152 may form a closed end having an enlarged or "bulb-like" structure below the undercut portion. The undercut portion provides a "stop surface" within the interior of traction element housing 150 that engages and / or mates with traction element insert 222, as will be explained and described in detail below.

[0052] The outer surface of traction element 142 may define a 2,000 mm 3 For example, the volume defined by the outer surface of the traction friction element 142 may be approximately 250 mm 3 Up to 2,000mm 3 or in some instances, within 500 mm 3 and 1,500mm 3 Between, or within 750mm 3 and 1,000mm 3 between.

[0053] The interior surface of traction element housing 150 or recess 152 may define a 1,500 mm 3For example, the volume of the interior surface of the traction friction element housing 150 or recess 152 may be approximately 300 mm 3 Up to 1,500mm 3 or in some instances, within 400 mm 3 and 1,000mm 3 Between, or within 450mm 3 and 900mm 3 between.

[0054] Upper portion 120 and sole structure 140 may be of one-piece construction. Alternatively, if desired, upper portion 120 and sole structure 140 may be joined together in any desired manner, such as by one or more of an adhesive or cement, stitching or sewing, a mechanical connector, etc., including in a manner commonly known and used in the footwear art. This will allow upper portion 120 and sole structure 140 to remain separable, such as for recycling, personalization, and / or customization purposes.

[0055] Without departing from the present technology, upper portion 120 may be made of any desired material and / or in any desired configuration and / or manner. As some more specific examples, all or at least a portion of upper portion 120 (and optionally most, substantially all, or even all of upper portion 120) may be formed as a woven textile component, a knitted textile component, another textile component, a natural leather component, a synthetic leather component, a polymer component (e.g., TPU, etc.), a plastic component, etc. The components used for upper portion 120 may have structures and / or configurations similar to those used in footwear commercially available from NIKE, Inc. of Beaverton, OR, and / or other manufacturers, including conventional structures and configurations known and used in the art.

[0056] Additionally or alternatively, if desired, the upper portion 120 construction may include foot fixing and engagement structures (e.g., "dynamic" and / or "adaptive fit" structures) of the type described in, for example, U.S. Patent Application Publication No. 2013 / 0104423, which is incorporated herein by reference in its entirety. As some additional examples, if desired, the upper portion 120 and footwear article 10 according to the present technology may include foot fixing and engagement structures of the type used in footwear products commercially available from Nike, Inc. of Beaverton, Oregon. These types of winding and / or adaptive or dynamic fit structures may at least partially wrap around and / or securely hold the wearer's foot.

[0057] As yet another alternative or additional feature, if desired, upper portions 120 and articles of footwear 10 according to at least some examples of the present technology may include a fused layer of upper material, such as an upper of the type including upper materials bonded by heat-melt or other adhesive materials, such as the uppers in footwear commercially available from Nike, Inc. of Beaverton, Ore. As yet additional examples, upper portions of the type described in U.S. Pat. Nos. 7,347,011 and / or 8,429,835 (each of which is incorporated herein by reference in its entirety) may be used without departing from the present technology.

[0058] Now combine Figure 3A and Figure 3B Describing an example article of footwear 10, an inner upper component 160, and components thereof in greater detail. The inner upper component 160 may be formed as an integral, one-piece construction that defines a foot-receiving chamber 162. The inner upper component 160 may include a bottom surface 164, a heel-receiving area 166, a midfoot-receiving area 168, and a forefoot-receiving area 170. The inner upper component 160 may be formed of a textile material, such as a knitted textile component (e.g., having a sock-like structure). Further, the bottom surface 164 of the inner upper component 160 may include a plurality of openings 172. Each of the plurality of openings 172 on the inner upper component 160 may be at least partially aligned with each of the recesses 152 of the footbed portion 148 of the sole structure 140 on the outer cover component 100 and the traction friction element housing 150.

[0059] Now combine Figure 4A and Figure 4B Example article of footwear 10, foot-supporting member 200, and components thereof are described in greater detail. Figure 4A A top medial perspective view of a foot-supporting member 200 is provided in accordance with some examples and aspects of the present technology, and Figure 4B A bottom perspective view is provided.

[0060] Foot-supporting component 200 may include a base and heel counter component having a bottom surface including one or more shoe traction element inserts 222 mounted inside one or more traction element housings 150. Foot-supporting component 200 may be formed as an integral, one-piece construction including a first (top) surface 210 and a second (bottom) surface 220 opposite first surface 210. First surface 210 may be used to support the entire plantar surface (or at least some portion thereof) of a wearer's foot. Second surface 220 may include a plurality of flexible traction element inserts 222.

[0061] like Figure 4Aand Figure 4B As shown, top surface 210 may include top panel 212 and heel support 214 disposed around the heel area of ​​foot-supporting member 200. Heel support 214 may provide additional support to the heel area of ​​the wearer's foot (e.g., similar to a heel counter structure). Figure 4A As shown, top panel 212 may include lateral edge 212L and medial edge 212M. Lateral edge 212L may extend from top panel 212 around at least a portion of a perimeter of a lateral side of foot-supporting component 200. Medial edge 212M may extend from top panel 212 around at least a portion of a perimeter of a medial side of foot-supporting component 200. Additionally, top panel 212 may include toe edge 212T extending from top panel 212 and around at least a portion of a top perimeter of a toe area of ​​foot-supporting component 200.

[0062] Top panel 212 may also include recesses (not shown). The recesses may provide a "gripping structure" (e.g., for engaging and preventing the wearer's foot from sliding within article of footwear 10, for preventing internal footwear components (such as an insole disposed within foot-supporting component 200) from moving within the interior of the footwear), may provide flexibility (e.g., to facilitate insertion of foot-supporting component 200 into inner upper component 160 and / or outer cover component 100), and / or may reduce the weight of foot-supporting component 200. The recesses may include a plurality of polygons, particularly hexagons (although other shapes may also be used) distributed across top panel 212. The recesses may be disposed along the heel region and midfoot region of top panel 212 and foot-supporting component 200. The recesses may also include other shapes, such as other polygons, shapes, ridges, dimples, circles, stars, or through holes. The recesses may also extend along other portions of top panel 212 and foot-supporting component 200, such as along the toe region, midfoot region, and / or heel region, or any combination of these regions.

[0063] Heel support 214 may include a heel stabilizer structure 218, for example, to limit or control movement of the heel. Heel stabilizer structure 218 may be a structure integrally formed with foot support member 200. Heel stabilizer structure 218 may include a heel stabilizer lateral sidewall 218L, a heel stabilizer medial sidewall 218M, and a heel stabilizer posterior sidewall 218R formed between heel stabilizer lateral sidewall 218L and heel stabilizer medial sidewall 218M. Figure 4A As illustrated, heel counter structure 218 can be a complete and closed counter structure at the rear heel area. In other embodiments, which will be explained further below, heel counter structure 218 can include a structure having an opening or recess around the heel area.

[0064] Figure 4B A second (bottom) surface 220 and a foot-supporting component 200 having a plurality of flexible traction element inserts 222 are shown. Flexible traction element inserts 222 may be at least partially aligned with each of traction elements 142, recesses 152, and traction element housing 150 of sole structure 140 on cover component 100. Flexible traction element inserts 222 may be sized, shaped, and positioned so that one traction element insert 222 fits into and extends into one traction element 142 and recess 152 of traction element housing 150. In another embodiment, two or more traction element inserts 222 may be sized, shaped, and positioned so that one traction element insert 222 fits into and extends into one traction element 142 and recess 152 of traction element housing 150.

[0065] like Figure 4B , Figure 5A and Figure 5BAs specifically illustrated in FIG. 1 , the flexible traction element insert 222 may include an enlarged free end 224 extending from a traction element arm 226. The free end 224 may be positioned to engage an undercut portion 154 within the interior of the traction element housing 150 and secure the traction element insert 222 within the recess 152 of the traction element housing 150. Further, the free end 224 of the example flexible traction element insert 222 may have two enlarged traction element components arranged around the intersection of two curved grooves or slits (e.g., a separate traction element component is provided on each side of the curved groove or slit). Other flexible traction element structures and arrangements are also possible without departing from the present invention. For example, the flexible traction element insert 222 may include four "fin-type" enlarged traction element components arranged around the intersection of two curved grooves or slits (e.g., a separate traction element component is provided in each quadrant or sector around the curved groove or slit). In another example, flexible traction element insert 222 may include three traction element components arranged around a "capital T" junction or intersection of two curved grooves (either or both of the curved grooves may have a curvature, if desired). As another example, flexible traction element insert 222 may include three traction element components arranged around a "capital Y" junction or intersection of three curved grooves, such as at any desired angle (one or more of the curved grooves may have a curvature, if desired). Although other specific shapes and arrangements are possible, the traction element components may have a shape similar to the fin-type enlarged traction element components described above (and may have any of the various specific structural features and / or options for the enlarged traction element components described above). In another example, a traction element component having a more T-shaped structure may have a structure similar to two adjacent traction element components pushed together so that one extended wall or side faces the groove. The illustrated traction element insert 222 of this example can have a similar structure (although possibly a slightly different size and / or shape). Those skilled in the art will appreciate that traction element insert 222 can have similar structure, features and / or characteristics. Traction element insert 222 can have any desired size, shape, orientation or arrangement on a footwear sole structure in accordance with the present technology.

[0066] Figure 5A and Figure 5B The interaction of traction element insert 222 and traction element 142 for a flexible traction element structure and arrangement is illustrated. Figure 5A Elongated rectangular traction element inserts 222 and corresponding elongated rectangular traction elements 142 are illustrated with and without slots. Figure 5B An elongated square traction element insert 222 with and without a slit and a corresponding elongated square traction element 142 are illustrated. The traction element 142 may include a recess 152, wherein the traction element housing 150 is formed to include an undercut portion 154. The traction element insert 222 may include an enlarged end 224 extending into the recess 152. When the traction element insert 222 is pushed into the recess 152, the enlarged end 224 may be pushed through the undercut portion 154 into the recess 152 to lock and retain the traction element insert 222 in the traction element 142 within the recess 152 and the traction element housing 150. For traction element insert 222 with slit 223, traction element insert 222 can resiliently rebound (expand outward) to expand, retain and lock traction element insert 222 in traction element 142 within recess 152 and traction element housing 150. Other shapes of traction element insert 222 and traction element 142 may be used without departing from the present invention. Traction element insert 222 and traction element 142 may utilize various sizes, such as Figure 5A and Figure 5B As shown. For example, the inner traction friction element insert 222 can be about 2 mm wide and about 7 mm high. Without departing from the present invention, the inner traction friction element insert 222 can also be in the range of about 1 mm to 3 mm wide and about 5 mm to 9 mm high. Additionally, the traction friction element 142 can include a wall thickness of about 0.8 mm, or in the range of 0.5 mm to 2.5 mm in thickness, or in the range of 0.5 mm to 1.5 mm in thickness. For example, the protrusion of the enlarged end 224 on the traction friction element insert 222 can be about 0.5 mm, or in the range of 0.2 mm to 0.8 mm. The enlarged end 224 can be about 0.8 mm high, or in the range of 0.5 mm to 1.5 mm in height. Other sizes can also be utilized, as these sizes are only examples. Based on different stress areas throughout the foot support component 200 and / or the outer cover component 100, the traction friction element insert 222 and the traction friction element shell 150 can have different sizes, shapes, orientations or arrangements on the footwear sole structure.

[0067] Now combine FIG. 6A to FIG. 6C Example article of footwear 10 and components thereof are described in greater detail. Fig. 6A A top view is provided; Figure 6B Provided along Fig. 6A A cross-sectional view taken along line 6B-6B of ; and Figure 6C A rear perspective cutaway view of article of footwear 10 is provided that highlights the engagement between traction element insert 222 of foot-supporting component 200 and traction element shell 150 of cover component 100 in accordance with some examples and aspects of the present technology.

[0068] Fig. 6A and Figure 6B An exemplary article of footwear 10 is illustrated in which all components are combined together to include cover member 100, inner upper member 160, and foot-supporting member 200. As illustrated, foot-supporting member 200 can fit inside inner upper member 160. Further, inner upper member 160 and foot-supporting member 200 can fit together inside cover member 100. Once foot-supporting member 200 is fitted inside inner upper member 160, the combined components of foot-supporting member 200 and inner upper member 160 can fit into interior chamber 106 of cover member 100. Foot-supporting member 200 can be oriented such that traction element insert 222 extends through a corresponding opening in inner upper member 160 and into a corresponding recess 152 of traction element shell 150. In at least some examples of the present technology, a separate insole component, inner midsole component, or other comfort-enhancing component may be disposed above top surface 210 of foot-supporting component 200, e.g., to prevent direct contact between foot-supporting component 200 and a wearer's foot.

[0069] Figure 6B and Figure 6CAn enlarged free end 224 of traction element insert 222 of foot-supporting component 200 is illustrated, which fits inside traction element housing 150 and engages with undercut portion 154 of traction element housing 150 on cover component 100. As illustrated in the above views, recess 152 of traction element housing 150 is formed to include undercut portion 154 (e.g., undercut portion 154 provides an opening to a bulbous closed end of recess 152), and traction element insert 222 includes an enlarged end 224 (e.g., a bulbous free end), such as formed with an enlarged traction element component extending into recess 152. As the traction element insert 222 is pushed past the undercut portion 154 into the recess 152 and toward the closed end of the traction element housing 150, the flexible groove or slit 223 in the traction element insert 222 may narrow as the enlarged traction element component moves inward toward the flexible groove or slit 223. Once the enlarged traction element component of the traction element insert 222 passes over the undercut portion 154, the enlarged traction element component of the traction element insert 222 may elastically rebound (expand outward) to enlarge the flexible groove or slit 223 and retain the traction element insert 222 within the traction element housing 150. The bulbous free end of the traction element insert 222 formed by the enlarged traction element component extends into the bulbous closed end of the recess 152 and will contact the undercut portion 154 to prevent the traction element insert 222 from being easily removed from the recess 152. Traction element insert 222 may also provide internal reinforcement or support for the overall traction element configuration (e.g., helping to prevent traction element housing 150 from collapsing under forces applied to the ground). Other spring elements or biasing components may be provided to help the enlarged traction element components (or other retaining structures) rebound to their increased spacing to provide this engagement feature.

[0070] The outer cover component 100 and / or the foot support component 200 may include a rigid plastic material. For example, the rigid plastic material may include one or more (combination) of the following: thermoplastic polyurethane (TPU), polyurethane, nylon, acrylic or polymethyl methacrylate (PMMA), polycarbonate (PC), polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PETE or PET), polyvinyl chloride (PVC), or acrylonitrile-butadiene-styrene (ABS). Other rigid plastic materials may also be used for the outer cover component 100 and / or the foot support component 200. The outer cover component 100 and / or the foot support component 200 may be made of other materials similar to the rigid plastic material and having similar material properties as the rigid plastic material. Various thickness and hardness properties may be used for the outer cover component 100 and / or the foot support component 200.

[0071] In at least some examples of the present technology, the volume (V RES ) and the volume (V ) defined by the outer surface of traction element insert 222 (when fully inserted into recess 152) within recess 152 INS ) may be substantially equal. As some more specific examples, V INS :V RES The ratio of can be in the range of 0.75 to 1, and in some examples, from 0.75 to 0.99, 0.75 to 0.95, 0.8 to 1, 0.8 to 0.99, or even 0.8 to 0.95. Additionally or alternatively, in at least some examples of the present technology, at least 75% (and in some examples, at least 80%, at least 85%, at least 90%, at least 95%, or even at least 98%) of the exterior surface area of ​​the traction element insert 222 within the recess can be in direct contact with and / or in close proximity to the interior surface of the recess 152. The snug fit with little additional open space within the recess 152 helps prevent unwanted "play" or movement of the traction element insert 222 within its corresponding recess 152.

[0072] Further, in at least some examples of the present technology, the traction element insert 222 extending into its corresponding recess 152 (e.g., the free end of the traction element insert 222 engages the undercut surface 154) will be the only connector structure that holds the foot-supporting component 200 to the outer cover component 100 and / or to the rest of the footwear structure. Additionally or alternatively, in at least some examples of the present technology, the traction element insert 222 extending into its corresponding recess 152 (e.g., the free end of the traction element insert 222 engages the undercut surface 154) will be the only connector structure that holds the inner upper component 160 to the rest of the footwear structure (e.g., the inner upper component 160 is only connected to the foot-supporting component 200 and / or the outer cover component 100). Therefore, the footwear structures of these examples can be very environmentally friendly and have improved sustainability, for example, by avoiding the use of adhesives. In other embodiments, traction element insert 222 may extend through and / or penetrate traction element housing 150 and / or traction element 142 .

[0073] When the useful life of one or more of the components ends, one or more of the components of article of footwear 10 may be disassembled, such as by removing traction element insert 222 from traction element shell 150. For example, foot-supporting component 200 and traction element insert 222 may be removed from cover component 100 and traction element shell 150. Portions such as cover component 100, inner upper component 160, and foot-supporting component 200 may then be easily recycled and replaced.

[0074] For article of footwear 10, various numbers of traction element inserts 222 and traction elements 142 may engage and correspond with one another. For example, one or more traction element inserts 222 may correspond and engage with recesses 152 in one or more traction element housings 150. In another example, two traction element inserts 222 may correspond and engage with recesses 152 in two traction element housings 150. In another example, three or more traction element inserts 222 may correspond and engage with recesses 152 in three or more traction element housings 150. Any traction element insert 222 located throughout foot-supporting component 200 (such as along the toe portion, heel portion, or middle section of foot-supporting component 200) may engage with a corresponding recess 152 in traction element housing 150 located at a similar location along cover component 100 (such as along the toe, heel, or middle section of cover component 100).

[0075] When used, this type of removable joint is advantageous because it allows the individual portions (e.g., cover member 100, inner upper member 160, and / or foot-supporting member 200) to be replaced and / or separated for potential recycling, personalization, and / or customization purposes. Additionally or alternatively, when used, this type of removable joint is advantageous because it allows the user to create a customized shoe for themselves, such as traction, traction element positioning, shoe geometry, user's foot geometry, traction element location, traction element type, and / or traction element size, etc. Additionally or alternatively, when used, this type of removable joint is advantageous because it allows the user to replace these individual portions with other portions, such as depending on the activity to be performed. More specifically, different outer cover components 100, inner upper components 160, foot support components 200, and / or combinations thereof may be used for different activities, such as to provide better traction, better support, and / or other desired characteristics for a particular activity. As a more specific example, the same combination of inner upper components 160 and foot support components 200 may be used (and switched between two different outer upper components 100, such as one outer upper component 100 designed for one recreational activity (e.g., cross-training) and another upper component 100 designed for a second recreational activity (e.g., yoga). Additionally or alternatively, different outer cover components 100, inner upper components 160, foot support components 200, and / or combinations thereof may be used based on a user's preferences at a particular time (e.g., for different colors and / or color combinations, etc.).

[0076] With reference to the figures and the following discussion, examples of footwear component structures and articles of footwear according to aspects of the present technology are described. Fig. 7A The article of footwear 70 may be used, for example, but not limited to, for running-type activities, cross-training, athletics, sprinting, walking, hiking, etc. The article of footwear 70 may include a foot-supporting component 700 and a footwear sole structure 800. Each of the foot-supporting component 700 and the footwear sole structure 800 may be formed as an integral, one-piece construction and / or each may be made of a single material. The foot-supporting component 700 may include, for example, FIG. 7A to FIG. 7C The illustrated Strobel 740 or a Strobel-like structure. Figure 7B and Figure 7C As illustrated, footwear sole structure 800 may be attached to the bottom of foot-supporting member 700 via Strobel 740 and sole locking insert 742. Foot-supporting member 700 may be engaged with footwear sole structure 800.

[0077] In the accompanying drawings, Fig. 8AFrontal and medial perspective views are provided; Figure 8B A rear, medial perspective view is provided; and Figure 8C A bottom, medial perspective view of a foot-supporting member 700 of an article of footwear according to some examples of the present technology is provided. Fig.8D A bottom, medial perspective view of a Strobel 740 from a foot-supporting component 700 of an article of footwear is provided in accordance with some examples of the present technology.

[0078] The foot-supporting component 700 may include an upper portion 720 and a Strobel structure 740 joined to the upper portion 720. In some examples, the upper portion 720 and the Strobel structure 740 may be formed as a single part (as an integral, one-piece structure). In some examples, the upper portion 720 and the Strobel structure 740 may be joined to the upper portion 720 in a variety of different methods known and used in the art. The upper portion 720 may also be referred to as an "upper". The upper portion 720 (which may be formed of one or more parts) potentially defines, together with the Strobel structure 740, a foot-receiving interior chamber 702 for accommodating a wearer's foot. The interior chamber may include a footbed portion 748 formed by an interior surface of the upper portion 720. The footbed portion 748 may extend from the toe of the foot-supporting component 700 and the upper portion 720 to the heel along the medial and lateral sides.

[0079] Will combine Fig.8D The Strobel structure 740 as part of the foot-supporting component 700 is described in more detail. The Strobel structure 740 can include one or more sole locking inserts 742. The one or more sole locking inserts 742 can be configured to fit inside one or more sole cavities 850 on the top side of the footwear sole structure 800. The Strobel structure 740 can be formed as an integral, one-piece construction including a first (top) surface 750 and a second bottom surface 752 opposite the first surface 750.

[0080] like FIG. 8A to FIG. 8DAs further illustrated, the upper portion 720 of the foot-supporting member 700 may include other components that are joined or integrally formed with the upper portion 720. For example, the upper portion 720 may include a tongue member 722 that is positioned across the instep region of the foot and positioned to ease the feeling of the closure system of the footwear on the wearer's foot. The upper 720 may also include a heel stabilizer, a toe cap, or a fixed strap. Additionally, the upper portion 720 may include a closure system (e.g., including one or more of a lace-type closure system, a zipper-type closure system, a buckle-type closure system, an elastic stretch element, etc.). As illustrated, the closure system may include a plurality of lace engagement openings 724. The footwear article 70 may also include one or more lace elements that extend through the lace engagement openings 724. In the illustrated example, the lacing element can extend over the tongue member 722 (e.g., in a cross-shaped manner), through one or more lacing engagement openings 724L, 724M located at the lateral and medial sides of the instep portion of the upper portion 720 (and / or the lateral and medial sides of the adjacent instep opening). The lacing element can include a fastening mechanism and / or a locking mechanism. The locking mechanism can be located at the rear heel area of ​​the upper portion 720. Further, the upper portion 720 can include a collar 726 extending around the opening 102.

[0081] like Fig. 8A , Figure 8B and Fig.8D As shown, the Strobel structure 740 may include one or more sole locking inserts 742 that fit inside one or more sole cavities 850. The Strobel structure 740 may include a first (top) surface 750 and a second (bottom) surface 752 that is opposite the first surface 744. The first surface 750 may be used to support the entire plantar surface (or at least a portion thereof) of the wearer's foot. The second surface 752 may include a plurality of flexible sole locking inserts 742.

[0082] Figure 8C and Fig.8D The second (bottom) surface 752 and the Strobel structure 740 are illustrated with a plurality of flexible sole locking inserts 742. The flexible sole locking inserts 742 may be at least partially aligned with each of the sole cavities 850 of the footwear sole structure 800. The flexible sole locking inserts 742 may be sized, shaped, and positioned so that one sole locking insert 742 fits into and extends into one recess 852 of one sole cavity 850 of the footwear sole structure 800. In another embodiment, two or more sole locking inserts 742 may be sized, shaped, and positioned so that one sole locking insert 742 fits into and extends into one recess 852 of one sole cavity 850 of the footwear sole structure 800.

[0083] As in Figure 8C and Fig.8D 850, and the like. As specifically illustrated in FIG. 86 , the flexible sole locking insert 742 may include an enlarged free end 744 extending from a traction element arm 746. The free end 744 may be positioned to engage an undercut portion 854 within a recess 852 of a sole cavity 850 and secure the sole locking insert 742 within the recess 852 of the sole cavity 850. Further, the free end 744 of the example flexible sole locking insert 742 may have two enlarged traction element components arranged around the intersection of two curved grooves or slits (e.g., a separate sole locking element component is provided on each side of the curved groove or slit). Other flexible sole locking element structures and arrangements are also possible without departing from the present invention. For example, the flexible sole locking insert 742 may include four "fin-type" enlarged traction element components arranged around the intersection of two curved grooves or slits (e.g., a separate traction element component is provided in each quadrant or sector around the curved groove or slit). In another example, the flexible sole locking insert 742 may include three traction element components arranged around a "capital T" junction or intersection of two curved grooves (if desired, either or both of the curved grooves may have a curvature). As another example, the flexible sole locking insert 742 may include three sole locking element components arranged around a "capital Y" junction or intersection of three curved grooves, such as arranged at any desired angle (if desired, one or more of these curved grooves may have a curvature). Although other specific shapes and arrangements are possible, the traction element components may have a shape similar to the fin-type enlarged traction element components described above (and may have any of the various specific structural features and / or options for the enlarged traction element components described above). In another example, a traction element component having a more T-shaped structure may have a structure similar to two adjacent traction element components pushed together so that an extended wall or side faces the groove. The illustrated sole locking insert 742 of this example can have a similar structure (although it may have a slightly different size and / or shape). Those skilled in the art will appreciate that the sole locking insert 742 can have similar structures, features and / or characteristics. According to the present technology, the sole locking insert 742 can have any desired size, shape or dimensions.

[0084] Additionally, upper portion 720 and / or Strobel structure 740 can include a top panel and a heel support disposed around a heel area of ​​foot-supporting component 700. The heel support can provide additional support to the heel area of ​​the wearer's foot (e.g., similar to a heel counter structure). The top panel can include a lateral edge and a medial edge. The lateral edge can extend from at least a portion of the perimeter of the top panel around the lateral side of foot-supporting component 700. The medial edge can extend from at least a portion of the perimeter of the top panel around the medial side of foot-supporting component 700. Additionally, the top panel can include a toe edge that extends from the top panel and around at least a portion of the top perimeter of the toe area of ​​foot-supporting component 700.

[0085] In other instances, a heel support for foot support member 700 may constitute a heel stabilizer structure, for example to limit or control movement of the heel. The heel stabilizer structure may be a structure formed integrally with foot support member 700. The heel stabilizer structure may include a heel stabilizer lateral sidewall, a heel stabilizer medial sidewall, and a heel stabilizer posterior sidewall formed between the heel stabilizer lateral sidewall and the heel stabilizer medial sidewall. The heel stabilizer structure may be a stabilizer structure that is complete and closed at the posterior heel area. In other embodiments, the heel stabilizer structure may include a structure having an opening or groove around the heel area.

[0086] Upper portion 720 and Strobel structure 740 of foot-supporting component 700 may be of one-piece construction. Alternatively, if desired, upper portion 720 and Strobel structure 740 may be joined together in any desired manner, such as by one or more of an adhesive or cement, stitching or sewing, a mechanical connector, etc., including in a manner commonly known and used in the footwear art. This would allow upper portion 720 and Strobel structure 740 to remain separable, such as for recycling, personalization, and / or customization purposes.

[0087] Without departing from the present technology, upper portion 720 may be made of any desired material and / or in any desired configuration and / or manner. As some more specific examples, all or at least a portion of upper portion 720 (and optionally most, substantially all, or even all of upper portion 720) may be formed as a woven textile component, a knitted textile component, another textile component, a natural leather component, a synthetic leather component, a polymer component (e.g., TPU, etc.), a plastic component, etc. The components used for upper portion 720 may have structures and / or configurations similar to those used in footwear commercially available from NIKE, Inc. of Beaverton, OR, and / or other manufacturers, including conventional structures and configurations known and used in the art.

[0088] Additionally or alternatively, if desired, the upper portion 720 structure may include a foot fixing and engagement structure (e.g., a "dynamic" and / or "adaptive fit" structure) of the type described in, for example, U.S. Patent Application Publication No. 2013 / 0104423, which is incorporated herein by reference in its entirety. As some additional examples, if desired, the upper portion 720 and footwear article 70 according to the present technology may include a foot fixing and engagement structure of the type used in footwear products commercially available from Nike, Inc. of Beaverton, Oregon. These types of winding and / or adaptive or dynamic fit structures may at least partially wind around and / or securely hold the wearer's foot.

[0089] As yet another alternative or additional feature, if desired, upper portions 720 and articles of footwear 70 according to at least some examples of the present technology may include a fused layer of upper material, such as an upper of the type including upper materials bonded by heat-melt or other adhesive materials, such as the uppers in footwear commercially available from Nike, Inc. of Beaverton, Oregon. As yet additional examples, upper portions of the type described in U.S. Pat. Nos. 7,347,011 and / or 8,429,835 (each of which is incorporated herein by reference in its entirety) may be used without departing from the present technology.

[0090] like 9A to 9C As shown, the footwear sole structure 800 may include a midsole component 810 and an outsole component 820. Typically, the midsole component 810 may be located between the outsole component 820 (which contacts the ground) and the Strobel structure 740 and the upper portion 720 of the foot-supporting component 700. The midsole component 810 may be designed to impart various degrees of cushioning, support, and flexibility to the footwear article 70. The midsole component 810 may provide additional comfort and cushioning for the wearer's foot. The footwear sole structure 800 may include one or more midsole components and / or one or more outsole components. The footwear sole structure 800 may include a multi-layer, multi-component structure. The footwear sole structure 800 may have a conventional configuration and may be made of conventional materials known and used in the footwear field. Further, the footwear sole structure 800 may be engaged with the foot-supporting component 700 by locking the sole locking insert 742 in the sole cavity 850 and / or including conventional means known and used in the footwear field.

[0091] like Fig.9A and Fig. 9CAs shown, the footwear sole structure 800 and the midsole component 810 may include a midsole surface 812. The midsole surface 812 may extend from the toe of the footwear sole structure 800 to the heel along the medial and lateral sides. The midsole surface 812 may include one or more sole cavities 850. The sole cavities 850 may be defined by holes in the midsole surface 812 of the footwear sole structure 800. For each sole cavity 850, the midsole surface 812 may also include a recess 852 extending into the interior of the sole cavity 850. The recess 852 may be positioned around the sole cavity 850 on the midsole surface 812. Further, each sole cavity 850 may include an undercut portion within the interior of the sole cavity 850. The interior surface defined by the recess 852 may form a closed end having an enlarged or "bulb-like" structure below the undercut portion. The undercut portion may provide a "stop surface" within the interior of the sole cavity 850 that engages and / or mates with and locks with the sole locking insert 742, as will be explained and described in detail below.

[0092] The interior surface of the sole cavity 850 or recess 852 may define a 1,500 mm 3 For example, the volume of the inner surface of the sole cavity 850 or the recess 852 may be approximately 100 mm 3 Up to 1,500mm 3 or in some instances, within 300 mm 3 and 1,200mm 3 Between, or within 500mm 3 and 900mm 3 between.

[0093] Additionally, footwear sole structure 800 and outsole component 820 may include ground contacting surface 822. Ground contacting surface 822 forms an exterior surface for directly engaging the ground (or other contacting surface). Outsole component 820 and ground contacting surface 822 may be configured with various traction elements, treads, and / or areas that have a relatively high coefficient of friction with the ground surface.

[0094] Now combine FIG. 10A to FIG. 10E An example article of footwear 70 and its components are described in greater detail. Fig. 10A A top view is provided; Fig. 10B Frontal and medial perspective views are provided; Fig. 10C A posterior, medial perspective view is provided; Fig. 10D Provided along Fig. 10A A cross-sectional view taken along line 10D-10D of ; and Fig.10EA rear perspective cutaway view of an article of footwear 70 is provided that highlights the engagement between a sole locking insert 742 of a foot-supporting member 700 and a sole cavity 850 of a footwear sole structure 800 in accordance with some examples and aspects of the present technology.

[0095] FIG. 10A to FIG. 10E An exemplary article of footwear 70 is illustrated, wherein all components together include a foot-supporting component 700 and a footwear sole structure 800. As illustrated, the foot-supporting component 700 can be engaged and locked with the footwear sole structure 800. The foot-supporting component 700 can be oriented such that the sole locking insert 742 extends into the recess 852 of the corresponding sole cavity 850. In at least some examples of the present technology, a separate insole component, inner midsole component, or other comfort-enhancing component can be provided for the foot-supporting component 700, for example, to prevent direct contact between the foot-supporting component 700 and the wearer's foot.

[0096] Fig. 10D and Fig.10E An enlarged free end 744 of a sole locking insert 742 of the foot-supporting component 700 is illustrated, which fits inside the sole cavity 850 and engages with an undercut portion of the sole cavity 850 on the footwear sole structure 800. As illustrated in the above view, the recess 852 of the sole cavity 850 is formed to include an undercut portion (e.g., the undercut portion provides an opening to the bulbous closed end of the recess 852), and the sole locking insert 742 includes an enlarged end 744 (e.g., a bulbous free end) that is, for example, formed with an enlarged sole locking element component extending into the recess 852. When the sole locking insert 742 is pushed through the undercut portion into the recess 852 and toward the closed end of the sole cavity 850, the flexible groove or slit in the sole locking insert 742 can narrow as the sole locking element component moves inwardly toward the flexible groove or slit. Once the enlarged sole locking element component of the sole locking insert 742 passes over the undercut portion, the enlarged sole locking element component of the sole locking insert 742 can elastically rebound (expand outward) to expand the flexible groove or slit and retain the sole locking insert 742 within the sole cavity 850. The bulbous free end 744 of the sole locking insert 742 formed by the enlarged sole locking element component extends into the bulbous closed end of the recess 852 and will contact the undercut portion to prevent the sole locking insert 742 from being easily removed from the recess 852. The sole locking insert 742 can also provide internal reinforcement or support for the entire traction friction element structure (e.g., helping to prevent the sole cavity 850 from collapsing under the force applied to the ground). Other spring elements or biasing components can be provided to help the enlarged sole locking element component (or other retaining structure) rebound to its increased spacing to provide such an engagement feature.

[0097] Fig. 10D and Fig.10E The interaction of the sole locking insert 742 and the sole cavity 850 for the flexible sole locking element structure and arrangement is illustrated. One or more sole locking inserts 742 can interact and fit inside one or more sole cavities 850 in a variety of different ways. Figure 5A and Figure 5B The illustrated interaction of the traction element insert 222 and the traction element 142 can be used with one or more sole locking inserts 742 and one or more sole cavities 850. In another example, the sole locking insert 742 can include an elongated rectangular sole locking insert with and without a slit that locks with a corresponding elongated rectangular sole cavity 850. The sole cavity 850 can include a recess 852, wherein the sole cavity 850 is formed to include an undercut portion. The sole locking insert 742 can include an enlarged end 744 extending into the recess 852. When the sole locking insert 742 is pushed into the recess 852, the enlarged end 744 can be pushed through the undercut portion into the recess 852 to lock and retain the sole locking insert 742 within the recess 852 and the sole cavity 850. For the sole locking insert 742 with a slit, the sole locking insert 742 can elastically rebound (expand outward) to expand, hold and lock the sole locking insert 742 in the recess 852 and the sole cavity 850. Without departing from the present invention, other shapes of the sole locking insert 742 and the sole cavity 850 can be utilized. Various sizes can be used for the sole locking insert 742 and the sole cavity 850. For example, the sole locking insert 742 can be about 2 mm wide and about 15 mm high. Without departing from the present invention, the sole locking insert 742 can also be in the range of about 1 mm to 7 mm wide and about 2 mm to 15 mm high. For example, the protrusion of the enlarged end 744 on the sole locking insert 742 can be about 0.5 mm, or in the range of 0.2 mm to 0.8 mm. The enlarged end 744 can be approximately 0.8 mm high, or in the range of 0.5 mm to 1.5 mm, or in the range of 0.2 mm to 2.5 mm high. Other dimensions may also be utilized, as these dimensions are merely examples. Based on different stress areas throughout the foot-supporting component 700 and / or the footwear sole structure 800, the one or more sole locking inserts 742 and the one or more sole cavities 850 can have different sizes, shapes, orientations, or arrangements on the foot-supporting component 700.

[0098] The foot-supporting component 700 and / or the footwear sole structure 800 may include a rigid plastic material. For example, the rigid plastic material may include one or more (combinations) of the following: thermoplastic polyurethane (TPU), polyurethane, nylon, acrylic or polymethyl methacrylate (PMMA), polycarbonate (PC), polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PETE or PET), polyvinyl chloride (PVC), or acrylonitrile-butadiene-styrene (ABS). Other rigid plastic materials may be used for the foot-supporting component 700 and / or the footwear sole structure 800. The foot-supporting component 700 and / or the footwear sole structure 800 may be made of other materials similar to the rigid plastic material and having similar material properties as the rigid plastic material. Various thickness and hardness properties may be used for the foot-supporting component 700 and / or the footwear sole structure 800.

[0099] In at least some examples of the present technology, the volume (V RES ) and the volume (V ) defined by the outer surface of the sole locking insert 742 (when fully inserted into the recess 852) within the recess 852 INS ) may be substantially equal. As some more specific examples, V INS :V RES The ratio of can be in the range of 0.75 to 1, and in some instances, from 0.75 to 0.99, 0.75 to 0.95, 0.8 to 1, 0.8 to 0.99, or even 0.8 to 0.95. Additionally or alternatively, in at least some examples of the present technology, at least 75% (and in some instances, at least 80%, at least 85%, at least 90%, at least 95%, or even at least 98%) of the exterior surface area of ​​the sole locking insert 742 within the recess can be in direct contact with and / or in close proximity to the interior surface of the recess 852. The snug fit with little additional open space within the recess 852 helps prevent the sole locking insert 742 from undesirably "playing" or moving within its corresponding recess 852.

[0100] Further, in at least some examples of the present technology, the sole locking insert 742 extending into its corresponding recess 852 (e.g., the free end 744 of the sole locking insert 742 engages the undercut surface) will be the only connector structure that holds the foot-supporting component 700 to the footwear sole structure 800 and / or to the rest of the footwear structure. As a result, the footwear structures of these examples can be very environmentally friendly and have improved sustainability, for example, by avoiding the use of adhesives.

[0101] When the useful life of one or more of the components ends, one or more of the components of article of footwear 70 may be disassembled, such as by removing sole locking insert 742 from sole cavity 850. For example, foot-supporting component 700 and sole locking insert 742 may be detached or removed from footwear sole structure 800 and sole cavity 850. Portions such as footwear sole structure 800 and foot-supporting component 700 may then be easily recycled and replaced.

[0102] For the article of footwear 10, various numbers of sole locking inserts 742 may engage and correspond with each other. For example, one or more sole locking inserts 742 may correspond and engage with recesses 852 in one or more sole cavities 850. In another example, two sole locking inserts 742 may correspond and engage with recesses 852 in two sole cavities 850. In another example, three or more sole locking inserts 742 may correspond and engage with recesses 852 in three or more sole cavities 850. Any sole locking insert 742 located throughout the foot-supporting component 700 (such as along the toe portion, heel portion, or middle section of the foot-supporting component 700) may engage with a recess 852 in a corresponding sole cavity 850 located at a similar location along the footwear sole structure 800 (such as along the toe, heel, or middle section of the footwear sole structure 800).

[0103] The example footwear article 70 may also include an inner upper component (not shown) and components thereof. The inner upper component may be formed as an integral, one-piece construction defining a foot-receiving chamber. The inner upper component may include a bottom surface, a heel-receiving area, a midfoot-receiving area, and a forefoot-receiving area. The inner upper component may be formed of a textile material, such as a knitted textile component (e.g., having a sock-like structure).

[0104] When used, this type of removable engagement is advantageous because it allows individual replacement of parts (e.g., foot-supporting component 700 and / or footwear sole structure 800) and / or separation of parts (e.g., foot-supporting component 700 and / or footwear sole structure 800) for potential recycling, personalization, and / or customization purposes. Additionally or alternatively, when used, this type of removable engagement is advantageous because it allows a user to create a customized shoe for themselves, such as traction, sole shape, shoe size, shoe geometry, geometry of the user's foot, location of traction elements, type of traction elements, and / or size of traction elements, etc. Additionally or alternatively, when used, this type of removable engagement is advantageous because it allows a user to replace these individual parts with other parts, such as depending on the activity to be performed. More specifically, different foot-supporting component 700, footwear sole structure 800, and / or combinations thereof can be used for different activities, such as to provide better traction, better support, and / or other desired characteristics for a particular activity. For example, different foot-supporting components 700, footwear sole structures 800, and / or combinations thereof may be used for running on different surfaces, such as to provide support and traction for running on cement or roads, or to provide support or traction for running on trails or non-cement surfaces. Additionally or alternatively, different foot-supporting components 700, footwear sole structures 800, and / or combinations thereof may be used based on a user's preferences at a particular time (e.g., for different colors and / or color combinations, etc.).

[0105] in conclusion

[0106] The present technology is disclosed above and in the accompanying drawings with reference to various embodiments. However, the purpose of this disclosure service is to provide examples of various features and concepts related to the present technology, rather than to limit the scope thereof. Those skilled in the relevant art will recognize that many changes and modifications may be made to the above-described embodiments without departing from the scope of the invention as defined by the appended claims.

[0107] For the avoidance of doubt, this application includes at least the subject matter described in the following numbered clauses:

[0108] Clause 1. A footwear structure consisting essentially of:

[0109] a cover member formed as an integral, one-piece construction, the cover member comprising: (i) an outsole portion including a plurality of traction elements, and (ii) an upper portion, wherein the cover member defines an interior chamber, wherein the interior chamber includes a footbed portion formed by an interior surface of the outsole portion, the footbed portion including a plurality of recesses, wherein each of the plurality of recesses extends into an interior of each of the plurality of traction elements and defines an undercut within the interior of each of the plurality of traction elements; and

[0110] A foot-supporting component formed as an integral, one-piece construction, the foot-supporting component comprising: (i) a top surface for supporting the entire plantar surface of a wearer's foot, and (ii) a bottom surface opposite the top surface, wherein the bottom surface includes a plurality of traction element inserts, wherein each of the plurality of traction element inserts extends into a corresponding one of the plurality of recesses, wherein each of the plurality of traction element inserts includes an enlarged free end positioned to engage a corresponding undercut and secure each of the plurality of traction element inserts within a corresponding one of the plurality of recesses.

[0111] Clause 2. The footwear structure of Clause 1, further comprising:

[0112] An inner upper component formed as an integral, one-piece construction, the inner upper component defining a foot-receiving chamber, the foot-receiving chamber including a bottom surface, a heel-receiving area, a midfoot-receiving area, and a forefoot-receiving area, wherein the inner upper component is formed of a textile material, and wherein the bottom surface includes a plurality of openings, wherein each of the plurality of openings is at least partially aligned with a corresponding one of the plurality of recesses.

[0113] Clause 3. The footwear structure of Clause 2, wherein the foot-supporting member is received within the foot-receiving chamber of the inner upper member.

[0114] Clause 4. The footwear structure of Clause 2, wherein each of the plurality of traction element inserts extends through a respective one of the plurality of openings.

[0115] Clause 5. The footwear structure of Clause 1, wherein the foot-supporting component includes an integrally formed heel counter.

[0116] Clause 6. The footwear structure of clause 1, wherein the outer cover component includes a lace engagement opening and the overall footwear structure further includes a lace extending through the lace engagement opening.

[0117] Clause 7. The footwear structure of Clause 1, wherein each of the traction element inserts comprises one or more slits.

[0118] Clause 8. The footwear structure of Clause 1, wherein each of the plurality of free ends comprises two enlarged traction element components.

[0119] Clause 9. The footwear structure of Clause 1, wherein each of the plurality of free ends comprises three enlarged traction element components.

[0120] Clause 10. The footwear structure of Clause 1, wherein each of the plurality of free ends comprises four enlarged traction element components.

[0121] Clause 11. The footwear structure of Clause 1, wherein the traction element insert engages its corresponding traction element to form the sole means of securing the shoe components together.

[0122] Clause 12. The footwear structure of clause 1, wherein an exterior surface of each of the plurality of traction elements defines a 2,000 mm 3 or smaller size.

[0123] Clause 13. The footwear structure of clause 1, wherein an exterior surface of each of the plurality of traction elements defines a width of 250 mm. 3 Up to 2,000mm 3 volume within the range of .

[0124] Clause 14. The footwear structure of clause 1, wherein an exterior surface of each of the plurality of traction elements is defined within 500 mm. 3 Up to 1,750mm 3 volume within the range of .

[0125] Clause 15. The footwear structure of clause 1, wherein an exterior surface of each of the plurality of traction elements defines a width of 750 mm. 3 Up to 1,000mm 3 volume within the range of .

[0126] Clause 16. The footwear structure of clause 1, wherein the interior surface of each of the plurality of recesses defines a 1,500 mm 3 or smaller size.

[0127] Clause 17. The footwear structure of clause 1, wherein the interior surface of each of the plurality of recesses defines a 300 mm 3 Up to 1,500mm 3volume.

[0128] Clause 18. The footwear structure of clause 1, wherein the interior surface of each of the plurality of recesses defines a 400 mm 3 Up to 1,000mm 3 volume.

[0129] Clause 19. The footwear structure of clause 1, wherein the interior surface of each of the plurality of recesses defines a 450 mm 3 Up to 900mm 3 volume.

[0130] Clause 20. The footwear structure of Clause 1, wherein a volume ratio of an interior surface of each of the plurality of recesses to an exterior surface of each of the plurality of traction elements is in a range of 0.3 to 0.7.

[0131] Clause 21. A footwear structure as described in Clause 1, wherein the volume ratio is in the range of 0.35 to 0.65.

[0132] Clause 22. A footwear structure according to Clause 1, wherein the volume ratio is in the range of 0.4 to 0.6.

[0133] Clause 23. A footwear structure comprising:

[0134] a cover member formed as an integral, one-piece construction, the cover member comprising: (i) an outsole portion including a plurality of traction elements, and (ii) an upper portion, wherein the cover member defines an interior chamber, wherein the interior chamber includes a footbed portion formed by an interior surface of the outsole portion, the footbed portion including a plurality of recesses, wherein each of the plurality of recesses extends into an interior of each of the plurality of traction elements and defines an undercut within the interior of each of the plurality of traction elements; and

[0135] A foot-supporting component formed as an integral, one-piece construction, the foot-supporting component comprising: (i) a top surface for supporting the entire plantar surface of a wearer's foot, and (ii) a bottom surface opposite the top surface, wherein the bottom surface includes a plurality of traction element inserts, wherein each of the plurality of traction element inserts extends into a corresponding one of the plurality of recesses, wherein each of the plurality of traction element inserts includes an enlarged free end positioned to engage a corresponding undercut and secure each of the plurality of traction element inserts within a corresponding one of the plurality of recesses.

[0136] Clause 24. The footwear structure of Clause 23, further comprising:

[0137] An inner upper component formed as an integral, one-piece construction, the inner upper component defining a foot-receiving chamber, the foot-receiving chamber including a bottom surface, a heel-receiving area, a midfoot-receiving area, and a forefoot-receiving area, wherein the inner upper component is formed of a textile material, and wherein the bottom surface includes a plurality of openings, wherein each of the plurality of openings is at least partially aligned with a corresponding one of the plurality of recesses.

[0138] Clause 25. The footwear structure of Clause 24, wherein the foot-supporting member is received within the foot-receiving chamber of the inner upper member.

[0139] Clause 26. The footwear structure of Clause 24, wherein each of the plurality of traction element inserts extends through a respective one of the plurality of openings.

[0140] Clause 27. The footwear structure of Clause 23, wherein the foot-supporting component includes an integrally formed heel counter.

[0141] Clause 28. The footwear structure of Clause 23, wherein the outer cover component includes a lace engagement opening and the overall footwear structure further includes a lace extending through the lace engagement opening.

[0142] Clause 29. The footwear structure of Clause 23, wherein each of the traction element inserts comprises one or more slits.

[0143] Clause 30. The footwear structure of Clause 23, wherein each of the plurality of free ends comprises two enlarged traction element components.

[0144] Clause 31. The footwear structure of Clause 23, wherein each of the plurality of free ends comprises three enlarged traction element components.

[0145] Clause 32. The footwear structure of Clause 23, wherein each of the plurality of free ends comprises four enlarged traction element components.

[0146] Clause 33. The footwear structure of Clause 23, wherein the traction element insert engages its corresponding traction element to form the sole means of securing the shoe components together.

[0147] Clause 34. The footwear structure of clause 23, wherein the exterior surface of each of the plurality of traction elements defines a 2,000 mm 3 or smaller size.

[0148] Clause 35. The footwear structure of clause 23, wherein an exterior surface of each of the plurality of traction elements defines a width of 250 mm. 3 Up to 2,000mm 3 volume within the range of .

[0149] Clause 36. The footwear structure of clause 23, wherein an exterior surface of each of the plurality of traction elements is defined within 500 mm. 3 Up to 1,750mm 3 volume within the range of .

[0150] Clause 37. The footwear structure of clause 23, wherein an exterior surface of each of the plurality of traction elements defines a width of 750 mm. 3 Up to 1,000mm 3 volume within the range of .

[0151] Clause 38. A footwear structure according to clause 23, wherein the interior surface of each of the plurality of recesses defines a 1,500 mm 3 or smaller size.

[0152] Clause 39. A footwear structure according to clause 23, wherein the interior surface of each of the plurality of recesses defines a 300 mm 3 Up to 1,500mm 3 volume.

[0153] Clause 40. A footwear structure according to clause 23, wherein the interior surface of each of the plurality of recesses defines a 400 mm 3 Up to 1,000mm 3 volume.

[0154] Clause 41. A footwear structure according to clause 23, wherein the interior surface of each of the plurality of recesses defines a 450 mm 3 Up to 900mm 3 volume.

[0155] Clause 42. The footwear structure of clause 23, wherein a volume ratio of an interior surface of each of the plurality of recesses to an exterior surface of each of the plurality of traction elements is in a range of 0.3 to 0.7.

[0156] Clause 43. A footwear structure according to Clause 42, wherein the volume ratio is in the range of 0.35 to 0.65.

[0157] Clause 44. A footwear structure according to Clause 43, wherein the volume ratio is in the range of 0.4 to 0.6.

[0158] Clause 45. A footwear structure consisting essentially of:

[0159] A foot-supporting component formed as an integral, one-piece construction, the foot-supporting component comprising: (i) an upper portion defining an interior chamber, wherein the interior chamber includes a footbed portion formed by an interior surface of the upper portion, and (ii) a Strobel structure attached to the upper portion, the Strobel structure including a top surface for supporting an entire plantar surface of a wearer's foot and a bottom surface opposite the top surface, wherein the bottom surface includes a plurality of sole locking inserts; and

[0160] A sole structural component formed as an integral, one-piece construction, the sole structural component comprising: (i) an outsole component including a ground contacting surface for directly engaging the ground, and (ii) a midsole component located between the outsole component and the Strobel structure, the midsole component including a midsole surface, the midsole surface including a plurality of sole cavities, wherein each of the plurality of sole cavities includes a recess extending into an interior of the sole cavity and an undercut is defined within the interior of each of the plurality of sole cavities,

[0161] Each of the plurality of sole locking inserts extends into a corresponding one of the plurality of recesses, wherein each of the plurality of sole locking inserts includes an enlarged free end, the enlarged free end being positioned to engage a corresponding undercut and secure each of the plurality of sole locking inserts within a corresponding one of the plurality of recesses.

[0162] Clause 46. The footwear structure of Clause 45, wherein the foot-supporting component includes an integrally formed heel counter.

[0163] Clause 47. The footwear structure of clause 45, wherein the upper portion includes a lace engagement opening and the overall footwear structure further includes a lace extending through the lace engagement opening.

[0164] Clause 48. The footwear structure of Clause 45, wherein each of the sole locking inserts comprises one or more slits.

[0165] Clause 49. The footwear structure of Clause 45, wherein each of the plurality of free ends comprises two enlarged sole locking insert components.

[0166] Clause 50. The footwear structure of Clause 45, wherein each of the plurality of free ends comprises three enlarged sole locking insert components.

[0167] Clause 51. The footwear structure of Clause 45, wherein each of the plurality of free ends comprises four enlarged sole locking insert components.

[0168] Clause 52. The footwear structure of Clause 45, wherein the sole locking insert engages its corresponding sole cavity to form the sole means of securing the shoe components together.

[0169] Clause 53. The footwear structure of clause 45, wherein the interior surface of each of the plurality of recesses defines a 1,500 mm 3 or smaller size.

[0170] Clause 54. A footwear structure according to clause 45, wherein the interior surface of each of the plurality of recesses defines a 100 mm 3 Up to 1,500mm 3 volume.

[0171] Clause 55. A footwear structure according to clause 45, wherein the interior surface of each of the plurality of recesses defines a 300 mm 3 Up to 1,200mm 3 volume.

[0172] Clause 56. A footwear structure according to clause 45, wherein the interior surface of each of the plurality of recesses defines a 500 mm 3 Up to 900mm 3 volume.

[0173] Clause 57. The footwear structure of Clause 45, wherein a volume ratio of an interior surface of each of the plurality of recesses to an exterior surface of each of the plurality of sole locking inserts is in a range of 0.75 to 1.0.

[0174] Clause 58. A footwear structure according to Clause 57, wherein the volume ratio is in the range of 0.75 to 0.99.

[0175] Clause 59. A footwear structure according to Clause 58, wherein the volume ratio is in the range of 0.8 to 0.95.

[0176] Clause 60. A footwear structure comprising:

[0177] A foot-supporting component formed as an integral, one-piece construction, the foot-supporting component comprising: (i) an upper portion defining an interior chamber, wherein the interior chamber includes a footbed portion formed by an interior surface of the upper portion, and (ii) a Strobel structure attached to the upper portion, the Strobel structure including a top surface for supporting an entire plantar surface of a wearer's foot and a bottom surface opposite the top surface, wherein the bottom surface includes a plurality of sole locking inserts; and

[0178] A sole structure member formed as an integral, one-piece construction, the sole structure member comprising: (i) an outsole member including a ground contacting surface for directly engaging the ground, and (ii) a midsole member located between the outsole member and the Strobel structure, the midsole member including a midsole surface including a plurality of sole cavities,

[0179] wherein each of the plurality of sole cavities comprises a recess extending into an interior of the sole cavity, and an undercut is defined within the interior of each of the plurality of sole cavities, wherein each of the plurality of sole locking inserts extends into a corresponding one of the plurality of recesses, wherein each of the plurality of sole locking inserts comprises an enlarged free end, the enlarged free end being positioned to engage a corresponding undercut and secure each of the plurality of sole locking inserts within a corresponding one of the plurality of recesses.

[0180] Clause 61. A footwear structure as described in Clause 60, wherein the foot-supporting component includes an integrally formed heel counter.

[0181] Clause 62. The footwear structure of clause 60, wherein the upper portion includes a lace engagement opening and the overall footwear structure further includes a lace extending through the lace engagement opening.

[0182] Clause 63. A footwear structure as described in Clause 60, wherein each of the sole locking inserts comprises one or more slits.

[0183] Clause 64. The footwear structure of Clause 60, wherein each of the plurality of free ends comprises two enlarged sole locking insert components.

[0184] Clause 65. The footwear structure of Clause 60, wherein each of the plurality of free ends comprises three enlarged sole locking insert components.

[0185] Clause 66. The footwear structure of Clause 60, wherein each of the plurality of free ends comprises four enlarged sole locking insert components.

[0186] Clause 67. The footwear structure of Clause 60, wherein the sole locking insert engages its corresponding sole cavity to form the sole means of securing the shoe components together.

[0187] Clause 68. A footwear structure according to clause 60, wherein the interior surface of each of the plurality of recesses defines a 1,500 mm 3 or smaller size.

[0188] Clause 69. A footwear structure according to clause 60, wherein the interior surface of each of the plurality of recesses defines a 100 mm 3 Up to 1,500mm 3 volume.

[0189] Clause 70. A footwear structure according to clause 60, wherein the interior surface of each of the plurality of recesses defines a 300 mm 3 Up to 1,200mm 3 volume.

[0190] Clause 71. A footwear structure according to clause 60, wherein the interior surface of each of the plurality of recesses defines a 500 mm 3 Up to 900mm 3 volume.

[0191] Clause 72. The footwear structure of clause 60, wherein a volume ratio of an interior surface of each of the plurality of recesses to an exterior surface of each of the plurality of sole locking inserts is in a range of 0.75 to 1.0.

[0192] Clause 73. A footwear structure according to clause 72, wherein the volume ratio is in the range of 0.75 to 0.99.

[0193] Clause 74. A footwear structure according to clause 73, wherein the volume ratio is in the range of 0.8 to 0.95.

Claims

1. A footwear structure comprising: a cover member formed as an integral, one-piece construction, the cover member comprising: (i) an outsole portion including a plurality of traction elements, and (ii) an upper portion, wherein the cover member defines an interior chamber, wherein the interior chamber includes a footbed portion formed by an interior surface of the outsole portion, the footbed portion including a plurality of recesses, wherein each of the plurality of recesses extends into an interior of each of the plurality of traction elements and defines an undercut within the interior of each of the plurality of traction elements; and A foot-supporting component formed as an integral, one-piece construction, the foot-supporting component comprising: (i) a top surface for supporting the entire plantar surface of a wearer's foot, and (ii) a bottom surface opposite the top surface, wherein the bottom surface includes a plurality of traction element inserts, wherein each of the plurality of traction element inserts extends into a corresponding one of the plurality of recesses, wherein each of the plurality of traction element inserts includes an enlarged free end positioned to engage a corresponding undercut and secure each of the plurality of traction element inserts within a corresponding one of the plurality of recesses.

2. The footwear structure according to claim 1, further comprising: An inner upper component formed as an integral, one-piece construction, the inner upper component defining a foot-receiving chamber, the foot-receiving chamber including a bottom surface, a heel-receiving area, a midfoot-receiving area, and a forefoot-receiving area, wherein the inner upper component is formed of a textile material, and wherein the bottom surface includes a plurality of openings, wherein each of the plurality of openings is at least partially aligned with a corresponding one of the plurality of recesses.

3. The footwear structure of claim 2, wherein the foot-supporting member is received within the foot-receiving chamber of the inner upper member.

4. The footwear structure of claim 2, wherein each of the plurality of traction element inserts extends through a respective one of the plurality of openings.

5. The footwear structure of claim 1, wherein the foot-supporting member includes an integrally formed heel counter.

6. The footwear structure of claim 1, wherein the outer cover member includes a lace engagement opening and the overall footwear structure further includes a lace extending through the lace engagement opening.

7. A footwear structure according to claim 1, wherein each of the traction element inserts includes one or more slits.

8. The footwear structure of claim 1, wherein each of the plurality of free ends includes two enlarged traction element components.

9. The footwear structure of claim 1, wherein the traction element inserts engage their corresponding traction elements to form the sole means of fastening shoe components together.

10. The footwear structure of claim 1, wherein an exterior surface of each of the plurality of traction elements defines a 2,000 mm 3 or smaller size.

11. The footwear structure of claim 1 , wherein the interior surface of each of the plurality of recesses defines a 1,500 mm 3 or smaller size.

12. The footwear structure of claim 1, wherein a volume ratio of an interior surface of each of the plurality of recesses to an exterior surface of each of the plurality of traction elements is in a range of 0.3 to 0.

7.

13. A footwear structure comprising: A foot-supporting component formed as an integral, one-piece construction, the foot-supporting component comprising: (i) an upper portion defining an interior chamber, wherein the interior chamber includes a footbed portion formed by an interior surface of the upper portion, and (ii) a Strobel structure attached to the upper portion, the Strobel structure including a top surface for supporting an entire plantar surface of a wearer's foot and a bottom surface opposite the top surface, wherein the bottom surface includes a plurality of sole locking inserts; and A sole structural component formed as an integral, one-piece construction, the sole structural component comprising: (i) an outsole component including a ground contacting surface for directly engaging the ground, and (ii) a midsole component located between the outsole component and the Strobel structure, the midsole component including a midsole surface, the midsole surface including a plurality of sole cavities, wherein each of the plurality of sole cavities includes a recess extending into an interior of the sole cavity and an undercut is defined within the interior of each of the plurality of sole cavities, Each of the plurality of sole locking inserts extends into a corresponding one of the plurality of recesses, wherein each of the plurality of sole locking inserts includes an enlarged free end, the enlarged free end being positioned to engage a corresponding undercut and secure each of the plurality of sole locking inserts within a corresponding one of the plurality of recesses.

14. The footwear structure of claim 13, wherein the foot-supporting member includes an integrally formed heel counter.

15. The footwear structure of claim 13, wherein the upper portion includes a lace engagement opening and the overall footwear structure further includes a lace extending through the lace engagement opening.

16. The footwear structure of claim 13, wherein each of the sole locking inserts includes one or more slits.

17. The footwear structure of claim 13, wherein each of the plurality of free ends includes two enlarged sole locking insert components.

18. The footwear structure of claim 13, wherein the sole locking insert engages its corresponding sole cavity, forming the sole means of securing the shoe components together.

19. The footwear structure of claim 13, wherein the interior surface of each of the plurality of recesses defines a 1,500 mm 3 or smaller size.

20. The footwear structure of claim 13, wherein a volume ratio of an interior surface of each of the plurality of recesses to an exterior surface of each of the plurality of sole locking inserts is in a range of 0.75 to 1.0.

Images