Article of footwear with sole structure

Abstract

An article of footwear has a sole structure and an upper, and defines a widest portion, a narrowest portion, a toe end, a heel end, a lateral side, and a medial side. The sole structure includes an upper midsole directly connected to the upper, a bottom plate directly connected to the upper midsole, a front midsole directly connected to the upper midsole and the bottom plate, a rear midsole directly connected to the upper midsole and the heel, and an outsole directly connected to the front midsole and the rear midsole. The upper insole comprises an upper side and a lower side, and a flange is arranged on the outer edge of the upper side of the upper insole. In addition, the lower side of the upper insole is provided with a plurality of grooves, the upper insole is provided with orifices, and the orifices extend from the upper side to the lower side.

Description

Technical Field

[0001] This disclosure generally relates to a footwear article including a sole structure. Background Technology

[0002] Many traditional shoes or other footwear products typically consist of an upper and a sole attached to the underside of the upper. Traditional shoes also include an internal space (i.e., a cavity or hollow) formed by the inner surfaces of the upper and sole, which accommodates the user's foot before the shoe is secured to the foot. The sole is attached to the underside or boundary of the upper and positioned between the upper and the ground. As a result, the sole typically provides stability and cushioning to the user when the shoe is worn. In some cases, the sole may include multiple components, such as an outsole, midsole, and insole. The outsole provides grip to the bottom surface of the sole, while the midsole is attached to the inner surface of the outsole and provides cushioning or enhanced stability. For example, at one or more desired locations along the sole, the sole may include specific foam materials that can increase stability, or it may include foam materials to reduce pressure or impact energy on the foot or leg when the user is running, walking, or engaging in another activity. The sole may also include additional components (such as plates) embedded in the sole to increase the overall stiffness of the sole and reduce energy loss during use. The upper typically extends upwards from the sole, forming an internal cavity that fully or partially encloses the foot. In most cases, the upper extends to cover the instep and toe areas, traversing the inner and outer sides of these areas. Many footwear products may also include a tongue that crosses the instep area to bridge the gap between the inner and outer edges of the upper, which together form an opening into the cavity. The tongue may also be positioned below the lacing system, between the inner and outer sides of the upper, to adjust the tightness of the footwear. Users can also manipulate the tongue to allow their foot to enter or exit the internal space or cavity. Furthermore, the lacing system allows users to adjust specific dimensions of the upper or sole, enabling the upper to fit various foot sizes and shapes.

[0003] However, in most cases, people expect footwear to have uppers that offer greater comfort and a better fit, along with soles that feature improved cushioning systems or optimized structural characteristics. Summary of the Invention

[0004] A footwear article includes a sole structure and an upper, defining a widest portion, a narrowest portion, a toe end, a heel end, a lateral side, and a medial side. The sole structure includes: an upper midsole directly connected to the upper; a sole plate directly connected to the upper midsole; a fore midsole directly connected to the upper midsole and the sole plate and located between the toe end of the sole structure and the widest portion of the sole structure; a rear midsole directly connected to the upper midsole and the sole plate and located between the heel end of the sole structure and the narrowest portion of the sole structure; and an outsole defining a ground contact surface and directly connected to the fore midsole and the rear midsole. The upper midsole includes an upper side and a lower side, and the outer edge of the upper side of the upper midsole has a flange. Furthermore, the lower side of the upper midsole has a plurality of grooves, and the upper midsole includes an opening extending from the upper side to the lower side.

[0005] In some embodiments, a footwear article includes a sole structure and an upper, defining a widest portion, a narrowest portion, a toe end, a heel end, a lateral side, and a medial side. The sole structure includes: an upper midsole directly connected to the upper; a sole plate directly connected to the upper midsole; a fore midsole directly connected to the upper midsole and the sole plate and located between the toe end of the sole structure and the widest portion of the sole structure; a rear midsole directly connected to the upper midsole and the sole plate and located between the heel end of the sole structure and the narrowest portion of the sole structure; and an outsole defining a ground contact surface and directly connected to the fore midsole and the rear midsole. The fore midsole includes an upper side, a lower side, a central longitudinal plane, a toe end, and a rear end, the rear end being located on a side opposite the toe end. The fore midsole also has a notch extending from the rear end of the fore midsole to the toe end of the fore midsole, and the notch extends generally along the central longitudinal plane of the fore midsole. The notch defines a curved upper profile that bends toward the inside of the front midsole, such that the front end of the notch is positioned closer to the inside of the front midsole than the outside of the front midsole.

[0006] In some embodiments, a footwear article includes a sole structure and an upper, defining a widest portion, a narrowest portion, a toe end, a heel end, a lateral side, and a medial side. The sole structure includes: an upper midsole directly connected to the upper; a sole plate directly connected to the upper midsole; a fore midsole directly connected to the upper midsole and the sole plate and located between the toe end of the sole structure and the widest portion of the sole structure; a rear midsole directly connected to the upper midsole and the sole plate and located between the heel end of the sole structure and the narrowest portion of the sole structure; and an outsole defining a ground contact surface and directly connected to the fore midsole and the rear midsole. The rear midsole includes an upper side, a lower side, a heel end, an front end disposed on a side opposite the heel end, a central longitudinal plane, a lateral side, and a medial side. The front end includes a pointed portion extending toward the toe end of the sole structure, extending further than the rest of the rear midsole. The pointed portion extends along the central longitudinal plane, and the opening is partially located within the pointed portion and extends from the upper side of the rear midsole to the lower side of the rear midsole.

[0007] In some embodiments, the upper midsole further includes sidewalls extending along the outer edge of the upper midsole and between the upper and lower sides of the upper midsole. In some embodiments, the sidewalls are generally smooth. In some embodiments, a plurality of grooves in the upper midsole are disposed between the toe end of the upper midsole and the orifice of the upper midsole. In some embodiments, the thickness of the flange of the upper midsole at the widest portion of the sole structure is greater than the thickness of the flange of the upper midsole at the narrowest portion of the sole structure. In some embodiments, the plurality of grooves includes a first groove and a second groove. In some embodiments, the first groove is disposed between the toe end of the upper midsole and the second groove. In some embodiments, the plurality of grooves includes a third groove, and the third groove has a generally identical shape to the second groove. In some embodiments, the orifice of the upper midsole defines a cylindrical structure. In some embodiments, the outsole includes multiple portions.

[0008] In some embodiments, the front midsole and rear midsole are spaced apart from each other. In some embodiments, the front midsole is positioned laterally forward and spaced apart from the rear midsole, resulting in a gap between the front and rear midsoles, exposing the underside of the sole plate in this gap. In some embodiments, the upper side of the front midsole includes a first recess, a second recess, and a third recess, with the second and third recesses disposed within the first recess. In some embodiments, the outer edge of the first recess defines a plurality of peaks and a plurality of valleys. In some embodiments, the second recess is disposed between a central longitudinal plane and the inner side of the front midsole, and the third recess is disposed between the central longitudinal plane and the outer side of the front midsole. In some embodiments, the outer edge of the front midsole defines a flange extending upward from the upper side of the front midsole.

[0009] In some embodiments, the perforation of the rear midsole is partially disposed behind the pointed portion. In some embodiments, the rear midsole further includes a first recess, a second recess, and a third recess, with the second and third recesses disposed within the first recess. In some embodiments, the perforation of the rear midsole is disposed between the second and third recesses, and the perforation of the rear midsole is disposed within the first recess. In some embodiments, the lower side of the rear midsole includes a gap extending from the heel end of the rear midsole to the front end of the rear midsole, and the perforation of the rear midsole is disposed within this gap. Attached Figure Description

[0010] Figure 1 This is a front perspective view of a footwear product, which is an athletic shoe, including an upper and a sole structure attached to the upper; Figure 2 yes Figure 1 The exploded view of the athletic shoe shown includes the upper midsole, plate, fore midsole, rear midsole, and outsole; Figure 3 yes Figure 2Top perspective view of the first embodiment of the upper and middle base shown; Figure 4 yes Figure 3 The top-view perspective view of the first embodiment of the upper and middle base shown; Figure 5 yes Figure 3 A bottom view of the first embodiment of the upper and middle sole shown; Figure 6 yes Figure 2 A bottom perspective view of the second embodiment of the upper and middle base shown; Figure 7 yes Figure 6 Top perspective view of the second embodiment of the upper and middle base shown; Figure 8 yes Figure 2 The diagram shows a top-view perspective of the plate. Figure 9 yes Figure 8 The diagram shown is a bottom-view perspective of the plate. Figure 10 yes Figure 8 The side view of the plate shown; Figure 11 yes Figure 8 The bottom view of the plate shown; Figure 12 yes Figure 8 The top view of the plate shown; Figure 13 yes Figure 2 Top perspective view of the first embodiment of the front midsole shown; Figure 14 yes Figure 13 The image shown is a bottom-view perspective of the front midsole. Figure 15 yes Figure 13 The top view of the front midsole shown; Figure 16 yes Figure 2 Top perspective view of the second embodiment of the front midsole shown; Figure 17 yes Figure 16 The image shown is a bottom-view perspective of the front midsole. Figure 18 yes Figure 16 The top view of the front midsole shown; Figure 19 yes Figure 2 Top perspective view of the first embodiment of the rear midsole shown; Figure 20 yes Figure 19 The image shown is a bottom-view perspective of the rear midsole. Figure 21 yes Figure 19 The top view of the rear midsole shown; Figure 22 yes Figure 19 The bottom view of the rear midsole shown; Figure 23 yes Figure 19 The front view of the rear midsole shown; Figure 24 yes Figure 19 The rear view of the rear midsole shown; Figure 25 yes Figure 2 Top perspective view of the second embodiment of the rear midsole shown; Figure 26 yes Figure 25 The image shown is a bottom-view perspective of the rear midsole. Figure 27 yes Figure 25 The top view of the rear midsole shown; Figure 28 yes Figure 25 The bottom view of the rear midsole shown; Figure 29 yes Figure 25 The front view of the rear midsole is shown; Figure 30 yes Figure 25 The rear view of the center sole shown; Figure 31 yes Figure 2 Top perspective view of the first embodiment of the outsole structure shown; Figure 32 yes Figure 31 The top view of the outer bottom shown; Figure 33 yes Figure 2 Top perspective view of the second embodiment of the outsole structure shown; Figure 34 yes Figure 33 The top view of the outer bottom shown; Figure 35 yes Figure 1 The image shown is a top-view perspective view of the shoe sole structure in its assembled configuration. Figure 36 yes Figure 35 The image shown is a bottom-view perspective of the shoe sole structure. Figure 37 yes Figure 33 The image shows the inside view of the shoe sole structure. Figure 38 yes Figure 33 The image shows an outer view of the shoe sole structure. Figure 39 yes Figure 35 The front view of the shoe sole structure shown; Figure 40 yes Figure 35The rear view of the shoe sole structure shown; Figure 41 yes Figure 35 The image shows a bottom view of the shoe sole structure. Figure 42 yes Figure 35 The top view of the shoe sole structure shown; Figure 43 It is along Figure 41 Side cross-sectional view of the sole structure taken from section line 43-43; Figure 44 It is along Figure 41 Rear cross-sectional view of the sole structure taken from the mid-section line 44-44; Figure 45 It is along Figure 41 Rear cross-sectional view of the sole structure taken at section line 45-45; and Figure 46 It is along Figure 41 Rear cross-sectional view of the sole structure taken from section line 46-46. Detailed Implementation

[0011] The following discussion and accompanying figures disclose various embodiments or constructions of shoe and sole structures. While embodiments of shoe or sole structures are disclosed with reference to athletic footwear (e.g., running shoes, tennis shoes, basketball shoes, etc.), the concepts associated with these embodiments are applicable to a wide range of footwear and footwear styles, including but not limited to: cross-training shoes, rugby shoes, golf shoes, hiking shoes, mountaineering boots, ski and snowboard boots, soccer shoes and spikes, walking shoes, track spikes, etc. The concepts of shoe or sole structures are equally applicable to non-athletic footwear, including dress shoes, sandals, loafers, slippers, and high heels. In addition to shoes, the specific concepts described herein can be applied to and incorporated into other types of clothing or sporting equipment, including helmets, padding or protective pads, shin guards, and gloves. Furthermore, the specific concepts described herein can be incorporated into cushions, backpack straps, golf clubs, or other consumer or industrial products. Therefore, the concepts described herein can be used in a wide variety of products. As used herein, the term "about" refers to a change in a numerical quantity that may result from:, for example, typical measurement and manufacturing procedures for footwear articles or other manufactured articles that may include embodiments of the present disclosure; errors or omissions in such procedures; differences in the raw materials, source, or purity used to manufacture the composition or mixture; and differences in the methods of implementation, etc. Throughout this disclosure, the terms "about" and "approximately" refer to a range of ±5% of the numerical value following the term.

[0012] This disclosure relates to a footwear article and / or specific components of such footwear article, such as an upper, sole, or sole structure and / or sole plate. The upper may include knitted components, woven fabrics, and / or nonwoven fabrics. Knitted components may be made from knitted yarns, woven fabrics from braided yarns, and nonwoven fabrics from integral nonwoven webs. Knitted fabrics include textiles formed by warp knitting, weft knitting, plain knitting, circular knitting, and / or other suitable knitting processes. For example, knitted fabrics may have a plain knit structure, a mesh knit structure, and / or a rib knit structure. This includes, but is not limited to, textiles formed by any of a variety of knitting methods, such as plain weave, twill weave, satin weave, dobbin weave, jacquard weave, double weave, or double-layer fabric weave. Nonwoven fabrics include textiles made, for example, by air-laid or spun web methods. The upper may include various materials, such as a first yarn, a second yarn, or a third yarn, which may have different properties or different visual characteristics.

[0013] Figure 1 An exemplary embodiment of footwear article 60 is shown, comprising an upper 62 and a sole structure 64. The upper 62 is attached to the sole structure 64, together defining an internal cavity into which a foot can insert. The sole structure 64 is connected to or secured to the upper 62 and extends between the user's foot and the ground when the user wears the footwear article 60. The sole structure 64 may include one or more components, including an upper midsole, a sole plate, a fore midsole, a rear midsole, and an outsole. For example, in some embodiments, the sole structure 64 may include an outsole that provides structural integrity and traction for the user, one or more midsoles that form a cushioning system, and a sole plate that provides additional durability, stability, and propulsion. As will be further discussed below, the sole structure 64 of embodiments of this disclosure includes one or more components that provide excellent elasticity and shock absorption characteristics to the sole structure 64. refer to Figure 2 The sole structure 64 includes a first midsole (or upper midsole) 70, a sole plate 72, a second midsole (or fore-midsole) 74, a third midsole (or rear midsole) 76, and an outsole 78. The upper midsole 70 is directly connected to the upper 62 and disposed below it, and directly connected to the sole plate 72 and disposed above it. The sole plate 72 is directly connected to and disposed above the fore-midsole 74 and the rear midsole 76. The fore-midsole 74 is positioned forward in the lateral direction and spaced apart from the rear midsole 76. The fore-midsole 74 and the rear midsole 76 are also each directly connected to the outsole 78 and disposed above its multiple spaced portions. In some embodiments, the outsole 78 includes multiple spaced-apart portions. In some embodiments, the fore-midsole 74 and the rear midsole 76 are directly connected to different portions of the outsole 78.

[0014] In some embodiments, the upper midsole 70, the front midsole 74, and the rear midsole 76 are each made of a thermoplastic material, such as polyurethane (PU) and / or ethylene-vinyl acetate copolymer (EVA), copolymers thereof, or similar materials. In other embodiments, the upper midsole 70, the front midsole 74, and / or the rear midsole 76 are EVA solid-sponge material (ESS), EVA foam (e.g., PUMA), etc. ® The materials used include ProFoam Lite™, IGNITE Foam, polyurethane, polyether, olefin block copolymers, thermoplastic materials (e.g., thermoplastic polyurethane, thermoplastic elastomers, thermoplastic polyolefins, etc.), or supercritical foam. In some embodiments, the upper midsole 70, front midsole 74, and / or rear midsole 76 are a single polymer material. In some embodiments, the upper midsole 70, front midsole 74, and / or rear midsole 76 are a mixture of multiple materials, such as EVA copolymers, thermoplastic polyurethane, polyether block amide (PEBA) copolymers, and / or olefin block copolymers. An example of PEBA material is PEBAX. ® .

[0015] In embodiments where the upper midsole 70, the front midsole 74, and / or the rear midsole 76 are formed using a supercritical foaming process, the supercritical foam may include microporous foam or particulate foam, such as TPU, EVA, or PEBAX. ® Or mixtures thereof, these foams are produced by mixing a supercritical fluid (e.g., CO2, N2, or mixtures thereof) with a material, preferably in a molten state (e.g., TPU, EVA, polyolefin elastomer, or mixtures thereof), within an autoclave, injection molding apparatus, or any container capable of sufficient heating / pressurization. In an exemplary process, a solution of supercritical fluid and molten material is pumped into a pressurized container, and then the internal pressure of the container is released, causing the supercritical fluid molecules to rapidly convert into gas, forming micro-cavities within the material, and causing the material to expand into foam for use as the upper midsole 70, front midsole 74, and rear midsole 76. In a further embodiment, the upper midsole 70, front midsole 74, and rear midsole 76 are formed using alternative methods known in the art, including the use of an expansion press, injection molding machine, granular foaming process, cold foaming process, compression molding technology, die-cutting process, or any combination thereof. For example, the upper midsole 70, the fore midsole 74, and / or the rear midsole 76 are formed by a process that includes an initial foaming stage in which the material is foamed using supercritical gas, and then processed into a specific shape by compression molding or die cutting.

[0016] In some embodiments, the sole plate 72 comprises a PU plastic, such as thermoplastic polyurethane (TPU). Other thermoplastic elastomers composed of block copolymers are also feasible. In some embodiments, the sole plate 72 may comprise carbon fiber. In some embodiments, the outsole 78 defines the bottom end or bottom surface of the sole structure 64. Furthermore, in some embodiments, the outsole 78 is the ground-contact portion of the sole structure 64 or includes a ground-contact surface and is disposed opposite to the insole (not shown). The outsole 78 is formed of one or more materials to impart durability, abrasion resistance, wear resistance, or grip to the sole structure 64, and in some embodiments, the outsole 78 of the sole structure 64 may comprise multiple portions.

[0017] like Figure 2 As shown, footwear 60 defines a forefoot region 90, a midfoot region 92, and a heel region 94. The forefoot region 90 generally corresponds to multiple portions of the footwear 60 that cover the forefoot, including the toes, metatarsal balls, and joints connecting the metatarsals to the toes or phalanges. The midfoot region 92 is adjacent to and adjacent to the forefoot region 90, and generally corresponds to the portions of the footwear 60 that cover the arch and bridge of the foot. The heel region 94 is adjacent to and adjacent to the midfoot region 92, and generally corresponds to multiple portions of the footwear 60 that cover the rear of the foot, including the heel or calcaneus, ankle, and / or Achilles tendon. The footwear 60 also includes an inner side 96 and an outer side 98. Specifically, the outer side 98 corresponds to the outer portion of the footwear 60, and the inner side 96 corresponds to the inner portion of the footwear 60. Therefore, the left and right footwear pieces have opposing outer and inner sides such that the inner sides are closest to each other when the user wears the footwear, while the outer sides are defined as the two sides furthest apart when worn. The inner side 96 and the outer side 98 are adjacent to each other at their opposing distal ends of the footwear 60.

[0018] Unless otherwise stated, the forefoot region 90, midfoot region 92, heel region 94, medial side 96, and lateral side 98 are intended to define the boundaries or areas of footwear article 60. Therefore, the forefoot region 90, midfoot region 92, heel region 94, medial side 96, and lateral side 98 generally characterize various parts of footwear article 60. Furthermore, the upper 62 and sole structure 64 are both characterized as having corresponding portions on the forefoot region 90, midfoot region 92, heel region 94, and medial side 96 and lateral side 98. Thus, the upper 62 and sole structure 64, and / or the individual portions of the upper 62 and sole structure 64, may each include corresponding portions arranged on the forefoot region 90, midfoot region 92, heel region 94, and medial side 96 and lateral side 98. Furthermore, the footwear 60 is intended to define the toe end of the footwear 60 at the distal end of the forefoot region 90, and the footwear 60 is intended to define the heel end of the footwear 60 at the distal end of the heel region 94.

[0019] The upper 62 and sole structure 64, and / or each individual portion of the upper 62 and sole structure 64, may include a corresponding portion defined as the toe end or heel end of that component. Furthermore, a central longitudinal plane extends from the toe end of the footwear article 60 to the heel end of the footwear article 60. The widest portion of the footwear article 60 is defined or measured along a first line perpendicular to the central longitudinal plane. Additionally, the narrowest portion of the footwear article 60 is defined as the narrowest portion of the footwear article 60 when viewed from above or below, i.e., the portion with the smallest width. The narrowest portion is measured along a second line perpendicular to the central longitudinal plane. The upper 62 and sole structure 64, and / or each individual portion of the upper 62 and sole structure 64, similarly define a central longitudinal plane, a widest portion, and a narrowest portion. Finally, "up," "above," "down," and "below" refer to the directions observed from the surface on which the footwear 60 is placed when it is assembled and in use. "Up" indicates a direction away from the surface, and "down" indicates a direction towards the surface. In this sense, "above" means relatively farther away from the surface, while "below" means relatively closer to the surface. Furthermore, the upper side of the upper 62 and sole structure 64, and / or the upper side of each individual part of the upper 62 and sole structure 64, is defined as the side of these parts furthest from the surface, while the lower side of the part is the side of the part closest to the surface.

[0020] refer to Figure 3 The illustration details a first embodiment of the upper midsole 70 of the sole structure 64 (i.e., the first upper midsole 70). In the illustrated embodiment, the widest portion of the first upper midsole 70 is measured via the first upper midsole line 120, while the narrowest portion is measured via the second upper midsole line 122. The outer edge 124 of the first upper midsole 70 extends upward further than the rest of the first upper midsole 70, thus forming a flange 126 on the outer side of the first upper midsole 70. The flange 126 of the first upper midsole 70 is highest at the heel end 128 of the first upper midsole 70, i.e., extends upward the greatest amount. The thickness of the flange 126 of the first upper midsole 70 generally decreases gradually from the heel end 128 towards the midfoot region 92, and is zero along the second upper midsole line 122. The flange 126 of the first upper midsole 70 has a non-zero thickness at the toe end 130 of the first upper midsole 70. Furthermore, the thickness of the flange 126 of the first upper midsole 70 at the toe end 130 of the first upper midsole 70 is less than its thickness at the heel end 128 of the first upper midsole 70. The thickness of the flange 126 of the first upper midsole 70 generally decreases gradually from the toe end 130 toward the midfoot region 92, and is zero along the second upper midsole bottom line 122.

[0021] Continue to refer to Figure 3The upper side 136 of the first upper midsole 70 is relatively flat except for the flange 126. The outer side 98 of the first upper midsole 70 includes a plurality of ridges 138 extending from the toe end 130 of the first upper midsole 70 toward the second upper midsole bottom line 122. In some embodiments, the ridges 138 do not extend completely to the toe end 130 of the first upper midsole 70. Furthermore, in some embodiments, the ridges 138 also do not extend completely to the second upper midsole bottom line 122. Furthermore, in some embodiments, the ridges 138 extend from a point between the toe end 130 of the first upper midsole 70 and the first upper midsole bottom line 120 to a point between the first upper midsole bottom line 120 and the second upper midsole bottom line 122. In some embodiments, the first upper midsole 70 includes a lateral recess 140 on the outer side 98 of the heel region 94. The lateral recess 140 maintains a constant depth and is substantially triangular in shape. The outer recess 140 is completely positioned between the second upper midsole 122 and the heel end 128 of the first upper midsole 70.

[0022] Continue to refer to Figure 3 The first upper midsole 70 has a varying thickness. More specifically, the thickness of the first upper midsole 70 gradually decreases between the first upper midsole bottom line 120 and the toe end 130 of the first upper midsole 70. The first upper midsole 70 is thickest between the first upper midsole bottom line 120 and the second upper midsole bottom line 122. More specifically, the thickest part of the first upper midsole 70 is located closer to the first upper midsole bottom line 120 than to the second upper midsole bottom line 122. The thickness of the first upper midsole 70 remains substantially constant between the second upper midsole bottom line 122 and the heel end 128 of the first upper midsole 70.

[0023] Figure 4 The lower side 142 of the first upper midsole 70 is shown. The lower side 142 of the first upper midsole 70 of the sole structure 64 includes a first rib 144, a second rib 146, and a third rib 148. The first rib 144 and the second rib 146 extend from the forefoot region 90, pass through the midfoot region 92, and enter the heel region 94. The first rib 144 and the second rib 146 do not extend completely to the toe end 130 of the first upper midsole 70. One end of the first rib 144 and the second rib 146 extends to a point located between the first upper midsole bottom line 120 and the toe end 130 of the first upper midsole 70. The other end of the first rib 144 and the second rib 146 extends to a point located between the second upper midsole bottom line 122 and the heel end 128 of the first upper midsole 70. The third rib 148 is mainly disposed in the forefoot region 90. In some embodiments, the third rib 148 is completely disposed between the first upper midsole bottom line 120 and the toe end 130 of the first upper midsole 70. In some embodiments, the first rib 144, the second rib 146, and the third rib 148 are generally curved. The first rib 144, the second rib 146, and the third rib 148 extend downward and outward from the lower side 142 of the first upper middle bottom 70.

[0024] Similar to the outer side 98 of the first upper midsole 70, the inner side 96 (not shown) of the first upper midsole 70 includes a plurality of ridges extending from the toe end 130 of the first upper midsole 70 toward the second upper mid-bottom line 122. In some embodiments, the inner ridges do not extend completely to the toe end 130 of the first upper midsole 70. In some embodiments, the inner ridges do not extend completely to the second upper mid-bottom line 122. Furthermore, in some embodiments, the inner ridges extend from a point between the toe end 130 of the first upper midsole 70 and the first upper mid-bottom line 120 to a point between the first upper mid-bottom line 120 and the second upper mid-bottom line 122. In some embodiments, the first upper midsole 70 includes a recess on the inner side 96 of the heel region 94. The recess has a uniform depth and is substantially triangular. The recess is completely disposed between the second upper mid-bottom line 122 and the heel end 128 of the first upper midsole 70. In some embodiments, the ridge of the inner side 96 of the first upper middle sole 70 is substantially the same as the ridge of the outer side 98 of the first upper middle sole 70. Furthermore, in some embodiments, the inner recess is substantially the same as the outer recess 140.

[0025] See Figure 5 The central longitudinal plane 152 of the first upper insole 70 is shown. The central longitudinal plane 152 extends inward perpendicular to the paper. Furthermore, the first rib 144, the second rib 146, and the third rib 148 of the first upper insole 70 are shown in more detail. In some embodiments, the first rib 144 and the second rib 146 have the same shape. In some embodiments, the first rib 144 and the second rib 146 have different shapes. Additionally, as... Figure 5 As shown, the lower profile of the heel end 128 of the first upper midsole 70 includes a first heel peak 154 and a second heel peak 156 separated by a heel valley 158. Furthermore, the flange 126 of the first upper midsole 70 extends upward and outward at the heel end 128, thereby forming a protrusion 160 at the heel end 128 of the first upper midsole 70.

[0026] Now for reference Figure 6The illustration shows a second embodiment of the upper midsole 180, also referred to as the second upper midsole 180. Similar to the first upper midsole 70, the widest portion of the second upper midsole 180 is measured along the first upper midsole bottom line 182, and the narrowest portion is measured along the second upper midsole bottom line 184. The second upper midsole 180 includes a plurality of grooves 186 and an opening 188. In some embodiments, the second upper midsole 180 includes a plurality of openings. In some embodiments, the plurality of grooves are disposed on the underside 190 of the second upper midsole 180. More specifically, in the illustrated embodiment, the second upper midsole 180 includes a first groove 192, which is disposed near the toe end 194 of the second upper midsole 180. In some embodiments, the first groove 192 has a rounded triangular shape. In some embodiments, the first groove 192 is circular, elliptical, rectangular, or other shapes. In the illustrated embodiment, the second upper midsole 180 also includes a second groove 196 and a third groove 198 disposed behind the first groove 192. The second groove 196 and the third groove 198 are generally elliptical. In some embodiments, the second groove 196 and the third groove 198 have identical shapes, while in other embodiments, they have different shapes. Furthermore, in some embodiments, the second groove 196 and / or the third groove 198 are circular, rectangular, triangular, or other shapes. Returning to the illustrated embodiment, the second groove 196 and the third groove 198 are arranged such that their major axes are both along the longitudinal direction of the second upper middle bottom 180. In some embodiments, the second groove 196 and the third groove 198 are located in front of the opening 188 and behind the first groove 192, such that the second groove 196 and the third groove 198 are located between the opening 188 and the first groove 192. In some embodiments, the second groove 196 and the third groove 198 are arranged adjacent to each other. In some embodiments, the second groove 196 and the third groove 198 each have a larger area than the first groove 192. In some embodiments, the second groove 196 and the third groove 198 have approximately the same area. In some embodiments, a plurality of grooves 186 extend from the lower side 190 to the upper side 200 of the second upper middle bottom 180 (see...). Figure 7 In some embodiments, the first groove 192, the second groove 196 and / or the third groove 198 have uneven depths, such that some of the grooves 192, 196 and 198 extend toward the upper side 200 of the second upper middle bottom 180 to a greater depth than the other grooves.

[0027] Continue to refer to Figure 6In some embodiments, the aperture 188 is disposed near the second upper middle bottom line 184 of the second upper middle bottom 180. In some embodiments, the aperture 188 is cylindrical, thereby defining a circular cross-section, and extends from the lower side 190 of the second upper middle bottom 180 to the upper side 200 of the second upper middle bottom 180. In some embodiments, the aperture 188 is of other different shapes. For example, in some embodiments, the aperture 188 has a polygonal, elliptical, or irregular cross-section. In some embodiments, the aperture 188 includes an outer edge 206 surrounding the lower side 208 of the aperture 188. In some embodiments, the outer edge 206 extends outward from the lower side 190 of the second upper middle bottom 180. In some embodiments, the outer edge 206 is generally circular. In some embodiments, the outer edge 206 is of other different shapes, such as polygonal, elliptical, or irregular shapes.

[0028] Continue to refer to Figure 6 In some embodiments, the region between the second upper midsole line 184 and the heel end 209 constitutes the heel region 94 of the second upper midsole 180. The heel region 94 of the second upper midsole 180 includes an outer edge 210 that is higher than the rest of the upper midsole, i.e., extends further downward. More specifically, in some embodiments, the outer edge 210 of the heel region 94 extends outward from the underside 190 of the second upper midsole 180, forming a flange or protrusion surrounding the heel region 94 of the second upper midsole 180. In some embodiments, the outer edge 210 is generally U-shaped. In some embodiments, the outer edge 210 defines an inner wall 212, wherein the inner wall 212 is configured to be generally perpendicular to the underside 190 of the second upper midsole 180. In some embodiments, the thickness of the outer edge 210 gradually decreases as it extends from the heel end 209 toward the second upper midsole line 184. In some embodiments, the outer edge 210 gradually decreases to a thickness of zero.

[0029] like Figure 6 and Figure 7 As shown, the second upper insole 180 defines a sidewall 214, which is generally smooth and without ribs or undulations. The sidewall 214 extends between and connects the lower side 190 and the upper side 200 of the second upper insole 180. In some embodiments, the sidewall 214 includes a horizontal ridge, a vertical ridge, a horizontal undulation, a vertical undulation, or defines an uneven surface.

[0030] For reference Figure 7In some embodiments, the upper side 200 of the second upper midsole 180 includes an outer edge 216 that extends upward further than the rest of the upper side 200 of the second upper midsole 180, thereby forming a flange 218 on the outer side of the second upper midsole 180. The flange 218 of the second upper midsole 180 is highest (i.e., extends upward the most) at the heel end 209 of the second upper midsole 180. The thickness of the flange 218 of the second upper midsole 180 generally decreases gradually from the heel end 220 towards the bottom line 184 of the second upper midsole 180, and is zero along the bottom line 184 of the second upper midsole 180. The flange 218 of the second upper midsole 180 has a non-zero thickness at the toe end 194 of the second upper midsole 180, but the thickness of the flange 218 at the toe end 194 of the second upper midsole 180 is less than its thickness at the heel end 220 of the second upper midsole 180. The thickness of the flange 218 of the second upper midsole 180 typically decreases gradually from the toe end 194 toward the midfoot region 92 of the second upper midsole 180. Apart from the flange 218 of the second upper midsole 180, the upper side 200 of the second upper midsole 180 is relatively flat.

[0031] See Figure 8 The sole plate 72 is shown in more detail. The sole plate 72 includes a plurality of ribs 280 and a plurality of openings 282. The plurality of ribs 280 extend longitudinally along the sole plate 72 from the forefoot region 90 to the heel region 94. In the illustrated embodiment, the plurality of ribs 280 do not extend fully to the toe end 284 or the heel end 286 of the sole plate 72. However, in some embodiments, the plurality of ribs 280 extend fully to the toe end 284 and / or the heel end 286. In the illustrated embodiment, the plurality of ribs 280 extend radially downward. In some embodiments, the plurality of ribs 280 extend radially upward. In the illustrated embodiment, the sole plate 72 includes a first rib 288 and a second rib 290. In some embodiments, the sole plate 72 has more or fewer ribs. In some embodiments, the ribs 280 vary in length or shape, arrangement, or size.

[0032] Continue to refer to Figure 8 The first orifice 296 of the plurality of orifices 282 is partially located in the forefoot region 90 and partially in the midfoot region 92. The first orifice 296 is generally circular and gradually narrows at its front end 298. The second orifice 300 of the plurality of orifices 282 is mainly located in the midfoot region 92 and the heel region 94. The second orifice 300 has an irregular shape. In some embodiments, the first orifice 296 and the second orifice 300 are the same shape but different in location or size. In some embodiments, there are more or fewer orifices. The orifices 282 facilitate the independent bending of the inner side 96 and the outer side 98 of the base plate 72. Please see Figure 9The sole plate 72 has a plurality of ribs 280 including a third rib 304 disposed along the outer side 98 of the sole plate 72. The third rib 304 extends longitudinally along a portion of the outer side 98 of the forefoot region 90 of the sole plate 72. The third rib 304 is slightly curved in shape and has a concave portion closer to the toe end 284 of the sole plate 72 and a convex portion closer to the heel end 286 of the sole plate 72. The third rib 304 generally follows the shape of the outer edge 308 of the outer side 98 of the forefoot region 90 of the sole plate 72. In some embodiments, the third rib 304 extends radially downward, defining a generally cylindrical or spherical profile. In some embodiments, the radial downward extension of the third rib 304 is the same as the radial downward extension of the first rib 288 and the second rib 290. In some embodiments, the radial downward extension distance of the third rib 304 is different from that of the first rib 288 and the second rib 290. In some embodiments, the sole plate 72 does not include the third rib 304.

[0033] Please see Figure 10 The sole plate 72 includes a curved portion 312 and a rear portion 314. The rear portion 314 is relatively flat. The curved portion 312 is located at the front and includes one or more radii of curvature. The toe end 284 of the sole plate 72 curves upward, and the apex 316 of the curved portion 312 is located in the forefoot region 90. The midfoot region 92 includes a transition point 318. The transition point 318 defines the location where the sole plate 72 transitions from the curved portion 312 to the rear portion 314. In some embodiments, the sole plate 72 has a uniform thickness. refer to Figure 11 The image shows a bottom view of the sole plate 72. The sole plate 72 typically widens in the forefoot region 90, narrows in the midfoot region 92, and maintains a constant width in the heel region 94. A first sole plate line 322 defines the widest portion of the sole plate 72. In some embodiments, the first sole plate line 322 is located within the forefoot region 90. A second sole plate line 324 defines the narrowest portion of the sole plate 72. In some embodiments, the second sole plate line 324 is located within the midfoot region 92. Continue to refer to Figure 11The sole plate 72 defines an outer edge 308. The outer edge 308 of the sole plate 72 on the outer side 98 of the forefoot region 90 defines a plurality of peaks 330 and a plurality of valleys 332. In the illustrated embodiment, the outer edge 308 defines three peaks and two valleys on the outer side 98 of the forefoot region 90, but in some embodiments, the number of peaks and valleys may be more or less. A first peak 334 of the plurality of peaks 330 is located at the toe end 284 of the sole plate 72. A second peak 336 of the plurality of peaks 330 is located on the outer side 98 of the forefoot region 90. A first valley 338 separates the first peak 334 and the second peak 336. The first valley 338 defines a first radius of curvature. A third peak 340 is located on the outer side 98 of the forefoot region 90. The third peak 340 is farther from the toe end 284 than the second peak 336. A second valley 342 separates the second peak 336 and the third peak 340. The second valley portion 342 defines a second radius of curvature. In some embodiments, the second radius of curvature is smaller than the first radius of curvature. In some embodiments, the second radius of curvature is the same as the first radius of curvature. In some embodiments, the second radius of curvature is larger than the first radius of curvature. The first peak portion 334, the second peak portion 336, the third peak portion 340, the first valley portion 338, and the second valley portion 342 are arranged on the outer side 98 of the base plate 72, located between the toe end 284 of the base plate 72 and the first base plate line 322, that is, the first peak portion 334, the second peak portion 336, the third peak portion 340, the first valley portion 338, and the second valley portion 342 are arranged on the outer side 98 of the base plate 72, located between the toe end 284 of the base plate 72 and the first base plate line 322.

[0034] Continue to refer to Figure 11The outer edge 308 of the sole plate 72, shown as 98, generally curves towards a central longitudinal plane 320 (which extends inward perpendicular to the paper) between the third peak 340 and the midfoot region 92. Therefore, the sole plate 72 gradually narrows between the forefoot region 90 and the midfoot region 92. The outer edge 308 remains substantially straight in the midfoot region 92 and the heel region 94. At the heel end 286 of the sole plate 72, the outer edge 308 defines a first heel peak 344 and a second heel peak 346. The first heel peak 344 is located on the outer side 98 of the sole plate 72. The second heel peak 346 is located on the inner side 96 of the sole plate 72. A first heel valley 348 separates the first heel peak 344 from the second heel peak 346. The first heel valley 348 defines the radius of curvature of the heel. In some embodiments, the radius of curvature of the heel is greater than the first radius of curvature of the first valley 338 and the second radius of curvature of the second valley 342, respectively. The outer edge 308 of the inner side 96 of the sole plate 72 extends generally in a straight line in the heel region 94. The outer edge 308 of the inner side 96 of the sole plate 72 bends generally toward the central longitudinal plane 320 in the midfoot region 92. Therefore, the sole plate 72 narrows in the midfoot region 92. As the outer edge 308 extends from the midfoot region 92 to the forefoot region 90, the outer edge 308 of the inner side 96 of the sole plate 72 gradually bends away from the central longitudinal plane 320. Therefore, the outer edge 308 of the inner side 96 forms an inner valley 350 in the midfoot region 92.

[0035] In some embodiments, the medial valley 350 is entirely located between the heel end 286 of the sole plate 72 and the first sole plate line 322. In some embodiments, the medial valley 350 is disposed between the first sole plate line 322 and the second sole plate line 324. In some embodiments, the medial valley 350 is disposed on the second sole plate line 324. Furthermore, the sole plate 72 widens between the midfoot region 92 and the forefoot region 90. Within the forefoot region 90, the outer edge 308 changes from curving away from the central longitudinal plane 320 to curving towards the central longitudinal plane 320. Therefore, the outer edge 308 of the medial side 96 defines the medial peak 354. The medial peak 354 is mainly disposed within the forefoot region 90. In some embodiments, the medial peak 354 is disposed on the first sole plate line 322. In some embodiments, the medial peak 354 is located between the toe end 284 of the sole plate 72 and the first sole plate line 322.

[0036] like Figure 11As shown, the first rib 288 and the second rib 290 extend from the forefoot region 90, pass through the midfoot region 92, and extend to the heel region 94. In some embodiments, the first rib 288 and the second rib 290 do not extend completely to the toe end 284 of the sole plate 72. One end of the first rib 288 and the second rib 290 extends to a point between the first sole plate line 322 and the toe end 284 of the sole plate 72. The other end of the first rib 288 and the second rib 290 extends to a point between the second sole plate line 324 and the heel end 286 of the sole plate 72. The first rib 288 and the second rib 290 do not extend completely to the heel end 286 of the sole plate 72. The third rib 304 is mainly shown in the forefoot region 90. In some embodiments, the third rib 304 is completely disposed between the first sole plate line 322 and the toe end 284 of the sole plate 72. In some embodiments, the third rib 304 follows the contour of the outer edge 308 of the sole plate 72. More specifically, the third rib 304 follows the first radius of curvature of the first valley 338 and the second radius of curvature of the second valley 342.

[0037] like Figure 11 As shown, the first opening 296 is generally located within the forefoot region 90 of the sole plate 72. In some embodiments, a large portion of the first opening 296 is located between the first sole plate line 322 and the heel end 286 of the sole plate 72. In some embodiments, the first opening 296 is completely located between the first sole plate line 322 and the heel end 286 of the sole plate 72. In some embodiments, a non-major portion of the first opening 296 is located between the first sole plate line 322 and the second sole plate line 324. The second opening 300 is located within the midfoot region 92 and the heel region 94. In some embodiments, the second opening 300 is completely located between the first sole plate line 322 and the heel end 286 of the sole plate 72. In some embodiments, a large portion of the second opening 300 is located between the second sole plate line 324 and the heel end 286 of the sole plate 72. In some embodiments, the first opening 296 is located between the first rib 288 and the second rib 290. In some embodiments, the second opening 300 is located between the first rib 288 and the second rib 290. In some embodiments, the first opening 296 and the second opening 300 are generally positioned forward of the last point 356 of the first rib 288, where "forward" is defined as closer to the toe end 284 of the sole plate 72. In some embodiments, the first opening 296 and the second opening 300 are generally positioned forward of the last point 358 of the second rib 290. In some embodiments, the first rib 288 and the second rib 290 are generally curved. In some embodiments, the first rib 288 and the second rib 290 are generally straight. In some embodiments, the first rib 288 and the second rib 290 are positioned differently relative to the first opening 296 and the second opening 300. Go to Figure 12 This shows a top view of the base plate 72. (Compared to...) Figure 11Similarly, the outer edge 308 of the base plate 72, the first rib 288, the second rib 290, the third rib 304, the first opening 296, and the second opening 300 are shown.

[0038] like Figure 13 As shown, the upper side 400 of the first forefoot midsole 74 includes a plurality of recesses 402. The depth of the first recess 404 of the first forefoot midsole 74 is approximately equal to the thickness of the sole plate 72. The depth of the second recess 406 is approximately equal to the depth of the first rib 288 of the sole plate 72. Similarly, the depth of the third recess 408 is approximately equal to the depth of the second rib 290 of the sole plate 72. The first recess 404 and the second recess 406 extend from the rear end 410 of the first forefoot midsole 74 toward the toe end 412. The second recess 406 and the third recess 408 have a generally curved profile, and the depths of the recesses 406 and 408 of the forefoot midsole are not consistent throughout. The outer edge 414 of the first forefoot midsole 74 extends upward from the upper side 400 to form a forefoot midsole flange 416. The forefoot midsole flange 416 is only provided on the outer side 98, the inner side 96, and the toe end 412 of the first forefoot midsole 74. The rear end 410 of the first forefoot midsole 74 does not have the forefoot midsole flange 416.

[0039] Go to Figure 14 The lower side 420 of the first front midsole 74 is substantially smooth. The lower side 420 of the first front midsole 74 is slightly thicker at the inner portion 422 and the outer portion 424. In some embodiments, the first front midsole 74 does not have any ridges on the outer side 98 or the inner side 96. See also Figure 15 The first forefoot midsole 74 includes a notch 426. The notch 426 extends from the rear end 410 of the first forefoot midsole 74 toward the toe end 412. The notch 426 extends generally along a central longitudinal plane 428, which extends inward perpendicular to the paper, and extends between a second recess 406 and a third recess 408 of the first forefoot midsole 74. The notch 426 is widest at the rear end 410 of the first forefoot midsole 74 and gradually narrows toward the toe end 412. Additionally, the outer edge 429 of the first recess 404 includes a plurality of peaks 430 and a plurality of valleys 432 on its outer side 98. The plurality of peaks 430 and valleys 432 of the first recess 404 correspond to the plurality of peaks 330 of the sole plate 72 (see...). Figure 9 ) and multiple valleys 332 (see Figure 9 The shapes are roughly the same.

[0040] Now for reference Figure 16This illustrates a second embodiment of the forefoot midsole 500, namely the second forefoot midsole 500. Similar to the first forefoot midsole 74, the upper side 502 of the second forefoot midsole 500 includes a plurality of recesses 504. The depth of the first recess 506 of the second forefoot midsole 500 is substantially equal to the thickness of the sole plate 72. The depth of the second recess 508 is substantially equal to the depth of the first rib 288 of the sole plate 72. Similarly, the depth of the third recess 510 is substantially equal to the depth of the second rib 290 of the sole plate 72. The first recess 506, the second recess 508, and the third recess 510 extend from the rear end 512 of the second forefoot midsole 500 toward the toe end 514 of the second forefoot midsole 500. The second recess 508 and the third recess 510 are generally curved, and the depths of the recesses 508 and 510 of the forefoot midsole are not always consistent. The outer edge 516 of the second forefoot midsole 500 extends upward from the upper side 502 of the second forefoot midsole 500 to form a forefoot midsole flange 520. The forefoot midsole flange 520 is only provided on the outer side 98, the inner side 96, and the toe end 514 of the second forefoot midsole 500. The rear end 512 of the second forefoot midsole 500 does not include the forefoot midsole flange 520.

[0041] refer to Figure 17 The lower side 530 of the second front midsole 500 is substantially smooth. In some embodiments, the second front midsole 500 does not have any ridges on the outer side 98 or the inner side 96. (Reference) Figure 18 The second forefoot midsole 500 includes a notch 534. The notch 534 extends from the rear end 512 of the second forefoot midsole 500 toward the toe end 514 of the second forefoot midsole 500. The notch 534 extends generally along a central longitudinal plane 538, which extends inward perpendicular to the paper, and extends in the region between the second recess 508 and the third recess 510 of the second forefoot midsole 500. The notch 534 is widest at the rear end 512 of the second forefoot midsole 500 and gradually narrows toward the toe end 514. The inner end 542 of the notch 534 curves toward the inner side 96 of the second forefoot midsole 500. The inner end 542 of the notch 534 is positioned closer to the inner side 96 of the second forefoot midsole 500 than the outer side 98 of the second forefoot midsole 500. Furthermore, the outer edge 546 of the first recess 506 includes a plurality of peaks 550 and a plurality of valleys 554 on the outer side 98 of the first recess 506. The plurality of peaks 550 and valleys 554 of the first recess 506 are consistent with the plurality of peaks 330 of the base plate 72 (see...). Figure 11 ) and multiple valleys 332 (see Figure 11 The shapes are roughly the same.

[0042] Now for reference Figure 19The diagram details a first embodiment of a rear midsole 76, namely a first rear midsole 76. The first rear midsole 76 has a plurality of medial ridges 600 on its medial side 96. The medial ridges 600 extend generally from the heel end 602 of the first rear midsole 76 towards the front end 604 of the first rear midsole 76, such that the front end 604 of the first rear midsole 76 is defined as the distal end opposite the heel end 602 of the first rear midsole 76. In some embodiments, the medial ridges 600 do not extend completely to the heel end 602 of the first rear midsole 76. In some embodiments, the medial ridges 600 do not extend completely to the front end 604 of the first rear midsole 76. In some embodiments, the medial ridges 600 have different shapes and lengths from each other.

[0043] Continue to refer to Figure 19 The outer edge 606 of the first rear midsole 76 at the medial side 96, heel end 602, and lateral side 98 bulges upward relative to the remainder of the upper side 608 of the first rear midsole 76, thereby forming a flange 610 on the medial side 96, heel end 602, and lateral side 98 of the first rear midsole 76. The front end 604 of the first rear midsole 76 does not include the flange 610. The flange 610 of the first rear midsole 76 is highest at the lateral side 98 and medial side 96 of the first rear midsole 76. In some embodiments, the medial portion 612 of the rear midsole flange 610 is substantially the same as the lateral portion 614 of the rear midsole flange 610.

[0044] Now for reference Figure 20 The image shows the underside 620 of a first rear midsole 76. The underside 620 of the first rear midsole 76 defines a gap 622. The gap 622 extends generally along a central longitudinal plane 630 extending inwards perpendicular to the paper and extends upwards and inwards from the underside 620 of the first rear midsole 76. The gap 622 of the first rear midsole 76 extends fully from the heel end 602 of the first rear midsole 76 to the front end 604 of the first rear midsole 76. In some embodiments, the depth and width of the gap 622 vary. In some embodiments, the gap 622 is widest at the front end 604 and generally narrows towards the heel end 602. The underside 620 of the first rear midsole 76 includes a first groove 624 located inside the gap 622 at 96 and a second groove 626 located outside the gap 622 at 98.

[0045] like Figure 21 As shown, the lower side of the first back midsole 76 is 620 (see...) Figure 20The upper side 608 of the first upper midsole 70 is wider than the upper side 608 of the first rear midsole 76 because the outer side 98 and the inner side 96 of the flange 610 of the first rear midsole 76 gradually narrow inward as the flange 610 extends upward. The upper side 608 of the first upper midsole 70 includes a first recess 632, a second recess 634, and a third recess 636. The first recess 632 extends from the front end 604 of the first rear midsole 76 to the heel end 602 of the first rear midsole 76, but does not extend completely to the heel end 602 of the first rear midsole 76. The rear end 638 of the first recess 632 curves forward. The second recess 634 of the first rear midsole 76 also extends from the front end 604 of the first rear midsole 76 to the heel end 602 of the first rear midsole 76, but does not extend completely to the heel end 602 of the first rear midsole 76. Furthermore, the rear end 640 of the second recess 634 does not extend beyond the rear end 638 of the first recess 632. The second recess 634 is deeper than the first recess 632 and is generally curved. The third recess 636 extends from the front end 604 of the first rear midsole 76 toward the heel end 602. The extension length of the third recess 636 is less than that of the first recess 632 or the second recess 634. Furthermore, the third recess 636 is deeper than the first recess 632 but shallower than the second recess 634. Both the second recess 634 and the third recess 636 are located within the first recess 632, and both the second recess 634 and the third recess 636 have varying depths.

[0046] Continue to refer to Figure 21 The front end 604 of the first rear midsole 76 narrows inward and extends forward to form a forward protrusion 646. The forward protrusion 646 is located near the outer side 98 of the first rear midsole 76. The outer side 98 of the first rear midsole 76 is defined by a convex curve 648, and the inner side 96 of the first rear midsole 76 is jointly defined by a convex curve 650 and a concave curve 652. The junction of the convex curve 650 and the concave curve 652 of the inner side 96 defines the inflection point 654 of the first rear midsole 76. Furthermore, the junction of the convex curve 648 of the outer side 98 and the concave curve 652 of the inner side 96 defines the forward protrusion 646 of the front end 604 of the first rear midsole 76. In some embodiments, the forward protrusion 646 of the first rear midsole 76 defines the foremost point of the first rear midsole 76. The heel end 602 of the first heel midsole 76 includes a first heel peak 656, a second heel peak 658, and a heel valley 660 disposed between the first heel peak 656 and the second heel peak 658. The outlines of the first heel peak 656 and the second heel peak 658 are substantially the same. The radius of curvature of the first heel peak 656 is substantially the same as that of the second heel peak 658. The radius of curvature of the heel valley 660 is generally larger than that of the first heel peak 656 and the second heel peak 658.

[0047] Figure 22The lower side 620 of the first rear midsole 76 is shown. As previously described, the lower side 620 of the first rear midsole 76 includes two grooves, namely a first groove 624 and a second groove 626. The first groove 624 and the second groove 626 are generally crescent-shaped. The first groove 624 curves outward 98 towards the outer side of the sole structure 64, and the second groove 626 curves inward 96 towards the inner side of the sole structure 64. In some embodiments, the curvature of the second groove 626 is greater than that of the first groove 624, that is, the radius of curvature defined by the inner corner of the second groove 626 is smaller than the radius of curvature defined by the outer corner of the first groove 624. In some embodiments, the length of the first groove 624 is greater than the length of the second groove 626, which refers to the maximum distance linearly measured from the first corner of the groove to the second corner, wherein the first corner is located closest to the front end 604 of the first rear midsole 76, and the second corner is located closest to the heel end 602 of the first rear midsole 76. The first groove 624 is located between the gap 622 and the outer side 98 of the first rear midsole 76, and the second groove 626 is located between the gap 622 and the inner side 96 of the first rear midsole 76. Neither the first groove 624 nor the second groove 626 extends to the heel end 602 of the first rear midsole 76, nor to the front end 604 of the first rear midsole 76.

[0048] See Figure 23 The diagram shows a front view of the first rear midsole 76. As previously described, the inner side 96 of the first rear midsole 76 includes a plurality of inner ridges 600. Similarly, the outer side 98 of the first rear midsole 76 also includes a plurality of outer ridges 666. The plurality of inner ridges 600 on the inner side 96 are substantially the same as the plurality of outer ridges 666 on the outer side 98. However, in some embodiments, the inner ridges 600 and outer ridges 666 are different. Furthermore, in some embodiments, neither the outer ridges 666 nor the inner ridges 600 of the first rear midsole 76 extend to the front end 604 or the heel end 602 of the first rear midsole 76. The flange 610, gap 622, first groove 624, and second groove 626 of the first rear midsole 76 are also shown in more detail. As previously described, in some embodiments, the flange 610 of the first rear midsole 76 bends inward toward the central longitudinal plane 630 as it extends upward. Figure 24 The rear view of the first rear midsole 76 is shown. (Compared to...) Figure 23 similar, Figure 24 The inner ridge 600, outer ridge 666, gap 622, first groove 624, second groove 626, first recess 632 and flange 610 of the first rear insole 76 are shown in more detail.

[0049] refer to Figure 25A second embodiment of the rear midsole 700 is shown in detail. Unlike the first rear midsole 76, the second rear midsole 700 includes a generally smooth sidewall 704. Furthermore, the outer edge 708 of the second rear midsole 700 on the medial side 96, heel end 710, and lateral side 98 bulges upward relative to the remainder of the upper side 712 of the second rear midsole 700, thereby forming a flange 714 on the medial side 96, heel end 710, and lateral side 98 of the second rear midsole 700. The front end 718 of the second rear midsole 700 does not include the flange 714 of the second rear midsole 700. The flange 714 of the second rear midsole 700 is highest at the lateral side 98 and medial side 96 of the second rear midsole 700. In some embodiments, the medial portion 722 of the flange 714 of the second rear midsole 700 is similar in shape and size to the lateral portion 726 of the flange 714 of the second rear midsole 700.

[0050] Now for reference Figure 26 The image shows the underside 730 of a second rear midsole 700. The underside 730 of the second rear midsole 700 defines a gap 734. The gap 734 of the second rear midsole 700 extends completely from the heel end 710 of the second rear midsole 700 to the front end 718 of the second rear midsole 700. In some embodiments, the depth and width of the gap 734 vary. For example, in some embodiments, the gap 734 is widest at the front end 718 and generally tapers towards the heel end 710. The underside 730 of the second rear midsole 700 also includes a first groove 740 located inside the gap 734 at 96 and a second groove 742 located outside the gap 734 at 98.

[0051] like Figure 27 As shown, the second rear midsole 700 includes a central longitudinal plane 741 that extends inward perpendicular to the paper. Furthermore, the lower side 730 of the second rear midsole 700 (see...) Figure 26The lower side 730 is wider than the upper side 712 of the second rear midsole 700. In some embodiments, the lower side 730 is wider than the upper side 712 because the outer side 98 and inner side 96 of the flange 714 of the second rear midsole 700 both gradually narrow inward as they extend upward. The upper side 712 of the second rear midsole 700 includes a first recess 746, a second recess 750, and a third recess 754. The first recess 746 extends from the front end 718 of the second rear midsole 700 toward the heel end 710, but does not extend completely to the heel end 710 of the second rear midsole 700. The rear end 758 of the first recess 746 curves forward. The second recess 750 of the second rear midsole 700 also extends from the front end 718 of the second rear midsole 700 toward the heel end 710, but does not extend completely to the heel end 710 of the second rear midsole 700. Furthermore, the rear end 760 of the second recess 750 does not extend beyond the rear end 758 of the first recess 746. The second recess 750 is deeper than the first recess 746 and is generally curved. The third recess 754 extends from the front end 718 of the second rear midsole 700 towards the heel end 710. The extension length of the third recess 754 is less than that of the first recess 746 or the second recess 750. Furthermore, the third recess 754 is deeper than the first recess 746 but shallower than the second recess 750. Both the second recess 750 and the third recess 754 are located within the first recess 746, and both the second recess 750 and the third recess 754 have varying depths.

[0052] Continue to refer to Figure 27 The front end 718 of the second rear midsole 700 narrows inward and extends forward to form a front protrusion 764. The front protrusion 764 is disposed generally along the central longitudinal plane 741 of the second rear midsole 700. The outer side 98 and inner side 96 of the second rear midsole 700 are both defined by convex and concave curves. The intersection of the outer concave curve and the inner concave curve defines the front protrusion 764 of the front end 718 of the second rear midsole 700. In some embodiments, the front protrusion 764 of the second rear midsole 700 defines the foremost point of the second rear midsole 700. Furthermore, this point has a through hole 768, which is generally located within the front protrusion 764 of the second rear midsole 700. The through hole 768 is generally elliptical and is disposed between the second recess 750 and the third recess 754. The through hole 768 extends from the upper side 712 of the second rear midsole 700 to the lower side 730 of the second rear midsole 700. In some embodiments, the through hole 768 is arranged along a central longitudinal plane 741. In some embodiments, the width of the through hole 768 is less than its length. In some embodiments, the through hole 768 has a different shape. In some embodiments, the second rear midsole 700 does not have the through hole 768. In some embodiments, the through hole 768 is replaced by a blind hole or a groove.

[0053] Figure 28The lower side 730 of the second rear midsole 700 is shown. A gap 734 extends generally along a central longitudinal plane 741 and extends upward and inward from the lower side 730 of the second rear midsole 700. As previously described, the lower side 730 of the second rear midsole 700 includes two recesses, namely a first recess 740 and a second recess 742. The first recess 740 and the second recess 742 are generally trapezoidal in shape. The first recess 740 curves toward the inner side 96 of the sole structure 64, and the second recess 742 curves toward the outer side 98 of the sole structure 64. In some embodiments, the first recess 740 and the second recess 742 are substantially the same in shape and size. The first recess 740 is disposed between the gap 734 and the outer side 98 of the second rear midsole 700, and the second recess 742 is disposed between the gap 734 and the inner side 96 of the second rear midsole 700. Neither the first groove 740 nor the second groove 742 extends to the heel end 710 of the second rear midsole 700, nor to the front end 718 of the second rear midsole 700.

[0054] refer to Figure 29 The image shows a front view of the second rear midsole 700. The flange 714, gap 734, first groove 740, second groove 742, first recess 746, and second recess 750 of the second rear midsole 700 are shown in more detail. As previously described, in some embodiments, the flange 714 of the second rear midsole 700 bends inward toward the central longitudinal plane 741 as it extends upward. Figure 30 The rear view of the second rear midsole 700 is shown. (Compared to...) Figure 29 similar, Figure 30 The gap 734, the first groove 740, the second groove 742, the first recess 746, and the flange 714 of the second rear midsole 700 are shown in more detail.

[0055] like Figure 31 The diagram illustrates a first embodiment of the outsole 78, namely the first outsole 78. The first outsole 78 includes a plurality of portions 800. A first portion 802, a second portion 804, and a third portion 806 of the first outsole 78 are spaced apart from each other. Each portion 800 includes a plurality of openings 808. In some embodiments, the first portion 802 of the first outsole 78 is larger than the second portion 804 and the third portion 806 of the first outsole 78. In some embodiments, the first portion 802 of the first outsole 78 includes more openings than the second portion 804 and the third portion 806 of the first outsole 78. The toe end 810 of the first outsole 78 curves upward, and the top of the toe end 810 of the first outsole 78 curves backward, such that the toe end 810 of the first outsole 78 itself forms a curved structure.

[0056] Figure 32A bottom view of the first outsole 78 is shown. The first outsole portion 802, the second outsole portion 804, and the third outsole portion 806 are shown in more detail. Furthermore, a central longitudinal plane 822 of the first outsole 78 is illustrated, extending inwards perpendicular to the paper. The second outsole portion 804 is entirely located on the outer side 98 of the central longitudinal plane 822, and the third outsole portion 806 is entirely located on the inner side 96 of the central longitudinal plane 822. Additionally, the first portion 802 of the first outsole 78 includes a notch 824 extending substantially along the central longitudinal plane 822 of the first outsole 78. The notch 824 of the first portion 802 extends from the rear end 826 of the first portion 802 towards the toe end 828 of the first portion 802, which coincides with the toe end 810 of the first outsole 78. The notch 824 does not extend completely to the toe end 828 of the first portion 802. The notch 824 is widest near the rear end 826 of the first portion 802 and gradually narrows towards the toe end 828. In some embodiments, the notch 824 of the first portion 802 of the first outsole 78 has the same shape as the notch 426 of the first forefoot midsole 74.

[0057] Continue to refer to Figure 32 The openings 808 on the first outsole portion 802 are generally similar in shape to the openings 808 on the second outsole portion 804 and the third outsole portion 806. In some embodiments, the openings 808 are triangular in shape. In some embodiments, the openings 808 are not evenly distributed on each of the outsole portions 802, 804, and 806. In some embodiments, the second outsole portion 804 and the third outsole portion 806 include a single row of openings 808. The second outsole portion 804 includes more openings 808 than the third outsole portion 806. The second outsole portion 804 is larger than the third outsole portion 806. The front end 818 of the second outsole portion 804 is closer to the first outsole portion 802 than the front end 820 of the third outsole portion 806. The second outsole portion 804 and the third outsole portion 806 are generally crescent-shaped.

[0058] like Figure 33 As shown, a second embodiment of the outsole 900 (i.e., the second outsole 900) also includes multiple portions 901. The first portion 902, the second portion 904, and the third portion 906 of the second outsole 900 are spaced apart from each other. Each portion 901 includes multiple openings 908. In some embodiments, the first portion 902 of the second outsole 900 is larger than the second portion 904 and the third portion 906. In some embodiments, the first portion 902 of the second outsole 900 includes more openings than the second portion 904 and the third portion 906. The toe end 910 of the second outsole 900 curves upward, and the top of the toe end 910 curves backward, such that the toe end 910 of the second outsole 900 itself forms a curved structure.

[0059] Continue to refer to Figure 33 The openings 908 on the first outsole portion 902 are substantially the same in shape as the openings 908 on the second outsole portion 904 and the third outsole portion 906. In some embodiments, the openings 908 are triangular in shape. In some embodiments, the openings 908 are not evenly distributed on each of the outsole portions 902, 904, and 906. In some embodiments, the second outsole portion 904 and the third outsole portion 906 include a single row of openings 908. The number of openings 908 included in the second outsole portion 904 is substantially the same as that in the third outsole portion 906. The dimensions of the second outsole portion 904 are substantially the same as those of the third outsole portion 906. The distance between the front end 918 of the second outsole portion 904 and the first outsole portion 902 is substantially equal to the distance between the front end 920 of the third outsole portion 906 and the first outsole portion 902. The second outsole portion 904 and the third outsole portion 906 are substantially trapezoidal in shape.

[0060] Figure 34 A bottom view of the second outsole 900 is shown. The first outsole portion 902, the second outsole portion 904, and the third outsole portion 906 are shown in more detail. Furthermore, a central longitudinal plane 922 of the second outsole 900, extending inwards perpendicular to the paper, is also shown. The second outsole portion 904 is entirely located on the outer side 98 of the central longitudinal plane 922, and the third outsole portion 906 is entirely located on the inner side 96 of the central longitudinal plane 922. Additionally, the first portion 902 of the second outsole 900 includes a notch 924 that extends generally along the central longitudinal plane 922 of the second outsole 900. The notch 924 is widest at the rear end 926 of the first portion 902 and gradually narrows as it extends toward the toe end 910. The inner end 928 of the notch 924 curves toward the inner side 96 of the first portion 902. The inner end 928 of the notch 924 is closer to the inner side 96 of the first portion 902 than the outer side 98 of the first portion 902. In some embodiments, the notch 924 of the first portion 902 of the second outsole 900 has the same shape as the notch 534 of the second front midsole 500.

[0061] Now for reference Figure 35 The complete sole structure 64 is depicted. In the illustrated embodiment, a first upper midsole 70, a sole plate 72, a first fore midsole 74, a first rear midsole 76, and a first outsole 78 are shown. However, in some embodiments, the first upper midsole 70 may be replaced by a second upper midsole 180. In some embodiments, the first fore midsole 74 may be replaced by a second fore midsole 500. In some embodiments, the first rear midsole 76 may be replaced by a second rear midsole 700. In some embodiments, the first outsole 78 may be replaced by a second outsole 900. Those skilled in the art will understand that any component can be replaced by alternative embodiments of that component.

[0062] Continue to refer to Figure 35 A first upper midsole 70 is disposed above a first forefoot midsole 74, and the toe end 412 of the first forefoot midsole 74 extends beyond the toe end 130 of the first upper midsole 70. The first forefoot midsole 74 is disposed above a first outsole 78, and the toe end 810 of the first outsole 78 extends further than the toe end 412 of the first forefoot midsole 74. Additionally, as previously described, the toe end 810 of the first outsole 78 (identical to the toe end 828 of the first portion 802 of the first outsole 78) extends upward and rearward, such that the toe end 810 of the first outsole 78 covers the toe end 412 of the first forefoot midsole 74. The first upper midsole 70 is disposed above a first rear midsole 76. The outer side 98 of the first rear midsole 76 extends upward and covers a portion, but not all, of the outer side 98 of the first upper midsole 70. More specifically, the outer recess 140 of the first upper insole 70 receives the outer portion 614 of the flange 610 of the first rear insole 76.

[0063] like Figure 36 As shown and as described above, the first outsole 78 includes a plurality of portions 800. These portions 800 of the first outsole 78 are directly connected to the first front midsole 74 and the first rear midsole 76. More specifically, a first portion 802 of the first outsole 78 is connected to the first front midsole 74, while a second portion 804 and a third portion 806 of the first outsole 78 are connected to the first rear midsole 76. In some embodiments, a second outsole 900, a second front midsole 500, and a second rear midsole 700 are employed. In these embodiments, a first portion 902 of the second outsole 900 is connected to the second front midsole 500, while a second portion 904 and a third portion 906 of the second outsole 900 are connected to the second rear midsole 700.

[0064] Continue to refer to Figure 36 The inner side 96 of the first rear midsole 76 (which is substantially the same as the outer side 98 of the first rear midsole 76) extends upward and partially covers the inner side 96 of the first upper midsole 70. More specifically, the inner recess of the first upper midsole 70 accommodates the inner portion 612 of the flange 610 of the first rear midsole 76. Furthermore, the upper side 608 of the heel end 602 of the first rear midsole 76 is substantially aligned with the lower side 142 of the heel end 128 of the first upper midsole 70. However, as described above, the upper side 136 of the heel end 128 of the first upper midsole 70 extends upward and outward from the lower side 142 of the heel end 128 of the first upper midsole 70. Therefore, the upper side 136 of the heel end 128 of the first upper midsole 70 is neither aligned with the lower side 142 of the heel end 128 of the first upper midsole 70 nor with the upper side 608 of the heel end 602 of the first rear midsole 76. Continue to refer to Figure 36The base plate 72 is directly connected to the first rear midsole 76 and the first front midsole 74. Furthermore, the first front midsole 74 and the first rear midsole 76 are spaced apart, thereby forming a gap 1000 between them. The lower side 1002 of the base plate 72 is exposed in the gap 1000 between the first front midsole 74 and the first rear midsole 76. In some embodiments, the base plate 72 is directly connected to the second rear midsole 700 and the second front midsole 500. Furthermore, in some embodiments, the second front midsole 500 and the second rear midsole 700 are spaced apart, thereby forming a gap between them.

[0065] Figure 37 The inner side 96 of the sole structure 64 is further shown. The ridge 150 of the first upper midsole 70 and the inner ridge 600 of the first rear midsole 76 are shown in more detail. Furthermore, the toe end 810 of the first outsole 78 is shown surrounding the toe end 412 of the first forefoot midsole 74. The first outsole 78 is shown in contact with the first forefoot midsole 74 and the first rear midsole 76, and the sole plate 72 extends between the first forefoot midsole 74 and the first rear midsole 76. Figure 37 similar, Figure 38 The outer side 98 of the sole structure 64 is shown. The outer side 98 of the sole structure 64 is substantially the same as the inner side 96 of the sole structure 64. In some embodiments, the sole structure 64 includes a second upper midsole 180 and a second rear midsole 700, such that the sidewalls of the sole structure 64 are relatively smooth and without ridges and / or undulations.

[0066] refer to Figure 39 The image shows a front view of the sole structure 64. A portion of the first forefoot midsole 74, away from the center, is directly connected to the underside 142 of the first upper midsole 70. Furthermore, as previously described, a first portion 802 of the first outsole 78 is connected to the underside 420 of the first forefoot midsole 74. In some embodiments, the first portion 802 of the first outsole 78 does not cover the medial portion 422 and the lateral portion 424 of the first forefoot midsole 74. In some embodiments, the first forefoot midsole 74 includes two uncovered portions. In some embodiments, portions 422 and 424 of the first forefoot midsole 74 are positioned towards the toe end 412 of the first forefoot midsole 74. The uncovered portions 422 and 424 of the first forefoot midsole 74 are respectively located on the medial side 96 and the lateral side 98 of the first forefoot midsole 74.

[0067] Turning Figure 40The first upper midsole 70 is directly connected to the first rear midsole 76. As previously described, the second outsole portion 804 and the third outsole portion 806 are directly connected to the underside 620 of the first rear midsole 76. In some embodiments, the second portion 804 of the first outsole 78 is disposed between the gap 622 and the outer side 98 of the first rear midsole 76, and the third portion 806 of the first outsole 78 is disposed between the gap 622 and the inner side 96 of the first rear midsole 76. The second portion 804 and the third portion 806 of the first outsole 78 do not cover the entire underside 620 of the first rear midsole 76. The second portion 804 and the third portion 806 of the first outsole 78 do not extend to the heel end 602 of the first rear midsole 76. In some embodiments, the first groove 624 of the first rear midsole 76 receives the second portion 804 of the first outsole 78, and the second groove 626 of the first rear midsole 76 receives the third portion 806 of the first outsole 78. In some embodiments, at certain locations in the heel region 94, the width of the first upper midsole 70 is smaller than the width of the first rear midsole 76.

[0068] Now for reference Figure 41 The notch 426 of the first front midsole 74 is the same as the notch 824 of the first portion 802 of the first outsole 78. Furthermore, except for the uncovered portions 422 and 424 of the first front midsole 74, the first portion 802 of the first outsole 78 has a substantially the same outline as the first front midsole 74. (Referring to...) Figure 41 The sole plate 72 is disposed in the forefoot region 90, midfoot region 92, and heel region 94 of the sole structure 64. The first opening 296 of the sole plate 72 is completely located within the recess 824 of the first portion 802 of the first outsole 78 and the recess 426 of the first forefoot midsole 74, and the first opening 296 has the same shape as the recesses 824 and 426. The first opening 296 of the sole plate 72 exposes the lower side 142 of the first upper midsole 70. In some embodiments, the second opening 300 of the sole plate 72 is disposed near the forefoot protrusion 646 of the first rear midsole 76.

[0069] In some embodiments, a vertical line extending orthogonally to the ground plane extends through the second opening 300 of the sole plate 72 and the forefoot protrusion 646 of the first rear midsole 76. In some embodiments, a vertical line extending orthogonally to the ground plane and extending through the second opening 300 of the sole plate 72 does not pass through the forefoot protrusion 646 of the first rear midsole 76. The second opening 300 is positioned closer to the toe end 1006 of the sole structure 64 than any portion of the second portion 804 of the first outsole 78 and any portion of the third portion 806 of the first outsole 78. The foremost point 1008 of the second opening 300 of the sole plate 72 is positioned closer to the toe end 1006 of the sole structure 64 than the foremost point of the forefoot protrusion 646 of the first rear midsole 76. The heel end 286 of the sole plate 72 extends approximately in the direction toward the heel end 1012 of the sole structure 64, with a similar extension distance to the heel ends 914 of the second portion 804 and 916 of the third portion 806 of the first outsole 78. The toe end 284 of the sole plate 72 does not extend all the way to the toe end 810 of the first outsole 78. Therefore, the toe end 284 of the sole plate 72 extends less than the toe end 828 of the first portion 802 of the first outsole 78 and the toe end 412 of the first forefoot midsole 74. The underside 1002 of the sole plate 72 is exposed between the rear end 410 of the first forefoot midsole 74 and the front end 604 of the first rear foot midsole 76.

[0070] Continue to refer to Figure 41 A first upper midsole 70 is disposed within the forefoot region 90, midfoot region 92, and heel region 94 of the sole structure 64. A second upper midsole line 122 defines the narrowest portion 1020 of the sole structure 64. The narrowest portion 1020 of the sole structure 64 is disposed within the midfoot region 92. In some embodiments, the shape of the first upper midsole 70 in the forefoot region 90 is substantially the same as that of the first forefoot midsole 74, except for the notch 426 of the first forefoot midsole 74. Within the midfoot region 92, the first upper midsole 70 substantially defines the outline of the sole structure 64. For this purpose, the width of the first upper midsole 70 in the midfoot region 92 is greater than that of the sole plate 72. At certain locations in the region where the first upper midsole 70 connects to the first rear midsole 76, the width of the first upper midsole 70 is also greater than that of the first rear midsole 76. At such locations, the first upper midsole 70 defines the outline of the sole structure 64. In other locations where the first upper midsole 70 connects to the first rear midsole 76, the width of the first rear midsole 76 is greater than that of the first upper midsole 70. In these locations, the first upper midsole 70 does not define the outline of the sole structure 64. Therefore, the first upper midsole 70 does not define the outline of the sole structure 64 throughout the entire heel area 94. Furthermore, the first upper midsole 70 also does not define the outline of the sole structure 64 throughout the entire area between the narrowest portion 1020 of the sole structure 64 and the heel end 1012 of the sole structure 64.

[0071] Continue to refer to Figure 41The second portion 804 of the first outsole 78 is directly connected to the first rear midsole 76. The second portion 804 of the first outsole 78 is disposed on the outer side 98 of the sole structure 64 and is primarily located in the heel region 94 of the sole structure 64. In some embodiments, the second portion 804 of the first outsole 78 is disposed between the narrowest portion 1020 of the sole structure 64 and the heel end 1012 of the sole structure 64. The third portion 806 of the first outsole 78 is also directly connected to the first rear midsole 76. Furthermore, the third portion 806 of the first outsole 78 is primarily disposed on the inner side 96 of the sole structure 64 and is located in the heel region 94 of the sole structure 64. In some embodiments, the third portion 806 of the first outsole 78 is disposed between the narrowest portion 1020 of the sole structure 64 and the heel end 1012 of the sole structure 64. A first groove 624 in the first rear midsole 76 accommodates a second portion 804 of the first outsole 78, and a second groove 626 in the first rear midsole 76 accommodates a third portion 806 of the first outsole 78. Therefore, the first groove 624 of the first rear midsole 76 and the second portion 804 of the first outsole 78 have substantially the same shape. Similarly, the second groove 626 of the first rear midsole 76 and the third portion 806 of the first outsole 78 have substantially the same shape. Figure 41 As shown, the third portion 806 of the first outsole 78 generally follows the convex curve 650 of the inner side 96 of the first rear midsole 76. Furthermore, in some embodiments, the third portion 806 of the first outsole 78 is located entirely behind the inflection point 654 of the inner side 96 of the first rear midsole 76.

[0072] In some embodiments, a second portion 904 of the second outsole 900 is directly connected to the second rear midsole 700. The second portion 904 of the second outsole 900 is located on the outer side of the sole structure 64 and primarily in the heel area of ​​the sole structure 64. In some embodiments, a third portion 906 of the second outsole 900 is also directly connected to the second rear midsole 700. Furthermore, the third portion 906 of the second outsole 900 is primarily located on the inner side of the sole structure 64. In some embodiments, a first groove 740 of the second rear midsole 700 accommodates the second portion 904 of the second outsole 900, and a second groove 742 of the second rear midsole 700 accommodates the third portion 906 of the second outsole 900. Therefore, the first groove 740 of the second rear midsole 700 and the second portion 904 of the second outsole 900 have substantially the same shape. Similarly, the second groove 742 of the second rear midsole 700 and the third portion 906 of the second outsole 900 have substantially the same shape.

[0073] Now for reference Figure 42The diagram shows the outline of the upper side 136 of the first upper midsole 70. As previously described, the first upper midsole 70 has the same external outline as the first forefoot midsole 74 in the forefoot region 90. The first upper midsole 70 is the widest component in the midfoot region 92, such that it defines the outline of the sole structure 64 in these regions. At certain locations, the first rear midsole 76 is wider than the first upper midsole 70. At these locations, the first rear midsole 76 defines the outline of the sole structure 64. In some embodiments, the first rear midsole 76 defines most of the outline of the sole structure 64 between the narrowest portion 1020 of the sole structure 64 and the heel end 1012 of the sole structure 64. Finally, as described above, the upper side 136 outline of the first upper midsole 70 is closer to the central longitudinal plane 1030 of the sole structure 64 than the lower side 142 outline of the first upper midsole 70. In the illustrated embodiment, the central longitudinal plane 1030 extends inward perpendicular to the paper.

[0074] Figure 43 It shows the plane along the central longitudinal direction 1030 (i.e. along) Figure 41 The image shows a lateral cross-sectional view of the sole structure 64 taken along lines 43-43. As previously described, the upper 62 is directly connected to the upper side 136 of the first upper midsole 70. The flange 126 of the first upper midsole 70 surrounds the toe end 1040 and the heel end 1042 of the upper 62. The sole plate 72 is shown connected to the lower side 142 of the first upper midsole 70. The toe end 284 of the sole plate 72 extends beyond the toe end 130 of the first upper midsole 70. The heel end 286 of the sole plate 72 extends less than the heel end 128 of the first upper midsole 70. Furthermore, the toe end 412 of the first forefoot midsole 74 extends further than the toe end 284 of the sole plate 72 and the toe end 130 of the first upper midsole 70. Ultimately, the toe end 828 of the first portion 802 of the first outsole 78 extends further than the toe end 412 of the first forefoot midsole 74, the toe end 284 of the sole plate 72, and the toe end 130 of the first upper midsole 70. Additionally, the sole plate 72 is substantially disposed within the first forefoot region 90 of the first forefoot midsole 74, and substantially disposed within the first rear midsole 76 in the heel region 94. Accordingly, the first recess 404 of the first forefoot midsole 74 accommodates the sole plate 72, and the first recess 632 of the first rear midsole 76 accommodates the sole plate 72.

[0075] Figure 44 A rear cross-sectional view of the sole structure 64 in the forefoot region 90 is shown. Along... Figure 41The sole plate 72 is generally disposed within the first forefoot midsole 74. In some embodiments, the sole plate 72 is offset toward the inner side 96 of the sole structure 64. The first upper midsole 70 is generally flat but includes a first rib 144 and a second rib 146, which cause a plurality of upper midsole bends 1044. Similarly, the sole plate 72 is generally flat, and the sole structure 64 includes a plurality of ribs 280, which cause a plurality of sole plate bends 1046. For this purpose, the first rib 288 of the sole plate 72 accommodates the first rib 144 of the first upper midsole 70, and the second rib 290 of the sole plate 72 accommodates the second rib 146 of the first upper midsole 70. Additionally (not shown), the third rib 304 of the sole plate 72 accommodates the third rib 148 of the first upper midsole 70. Furthermore, the second recess 406 and the third recess 408 of the first forefoot midsole 74 form a plurality of forefoot midsole curved portions 1048, which are aligned with the footplate curved portion 1046 of the footplate 72 and the upper midsole curved portion 1044 of the first upper midsole 70. Accordingly, the second recess 406 of the first forefoot midsole 74 accommodates the first rib 288 of the footplate 72, while the third recess 408 of the first forefoot midsole 74 accommodates the second rib 290 of the footplate 72. The first upper midsole 70, the first forefoot midsole 74, and the first portion 802 of the first outsole 78 extend from the inner side 96 to the outer side 98 of the sole structure 64.

[0076] Figure 45 Another rear cross-sectional view of the sole structure 64 in the forefoot region 90 is shown. Along Figure 41 Lines 45-45 are used in the design. The first upper midsole 70 extends from the inner side 96 to the outer side 98. The sole plate 72 is disposed within the first forefoot midsole 74. The first upper midsole 70 is generally flat, but includes a first rib 144 and a second rib 146, which cause multiple upper midsole curved portions 1050. Similarly, the sole plate 72 is generally flat, but includes multiple sole plate curved portions 1052 formed by the first rib 288 and the second rib 290 of the sole plate 72. Furthermore, the first forefoot midsole 74 is generally flat, but includes multiple forefoot midsole curved portions 1054 formed by the second recess 406 and the third recess 408. The sole plate 72 and the first forefoot midsole 74 are discontinuous along the central longitudinal plane 1030 of the sole structure 64.

[0077] The first upper midsole has multiple upper midsole ribs at 144 and 146. Figure 41 The depth of the 45-45 line is greater than the first upper and middle bottom 70, along with multiple upper and middle bottom ribs 144, 146. Figure 41The depth of line 44-44. Therefore, the radius of curvature of the multiple upper mid-bottom curved portions 1050 of the first upper mid-bottom 70 formed by multiple upper mid-bottom ribs 144, 146 along line 45-45 is smaller than the radius of curvature of the multiple upper mid-bottom curved portions 1044 of the first upper mid-bottom 70 along line 44-44 (see Figure 44 Correspondingly, multiple base plate ribs 280 along... Figure 41 The depth of the 45-45 line is greater than that of multiple bottom plate ribs along 280. Figure 41 The depth of line 44-44. Similarly, multiple front midsole indentations 406, 408 along... Figure 41 The depth of line 45-45 is greater than that of multiple front midsole indentations 406, 408 along Figure 41 The depth of line 44-44. Therefore, the multiple base plate curved portions 1052 of the base plate 72 and the multiple front midsole curved portions 1054 of the first front midsole 74 along Figure 41 The radius of curvature defined by line 45-45 is smaller than the multiple curved portions 1046 of the base plate 72 and the multiple curved portions 1048 of the first front midsole 74 along... Figure 44 The radius of curvature defined by line 44-44 (see Figure 44 ).

[0078] Continue to refer to Figure 45 The base plate 72 is positioned approximately centered within the first front midsole 74 along line 45-45. The first front midsole 74 is discontinuous along the central longitudinal plane 1030, and the first outer outsole 78 is also discontinuous along the central longitudinal plane 1030. Figure 41 At certain locations along line 45-45, the lower side 142 of the first upper midsole 70 forms the bottom surface of the sole structure 64.

[0079] Figure 46 Another rear cross-sectional view of the sole structure 64 in the midfoot region 92 is shown. Along Figure 41 Lines 46-46 are provided, and the first upper midsole 70 extends from the inner side 96 to the outer side 98. The base plate 72 is generally located within the first front midsole 74. The first upper midsole 70, base plate 72, and first front midsole 74 are generally flat. Multiple upper midsole ribs 144, 146, multiple base plate ribs 280, and multiple front midsole recesses 406, 408 are located along... Figure 41 The depth of line 46-46 is greater than the depth of the multiple upper midsole ribs 144, 146, the multiple base plate ribs 280, and the depth of the multiple front midsole recesses 406, 408 along line 45-45, and is also greater than the depth of the multiple upper midsole ribs 144, 146, the multiple base plate ribs 280, and the depth of the multiple front midsole recesses 406, 408 along line 44-44. Therefore, the radius of curvature of the multiple upper midsole curved portions 1056 formed by the multiple upper midsole ribs 144, 146 along line 46-46 is smaller than the radius of curvature of the multiple upper midsole curved portions 1050 (see [reference]). Figure 45 The 45-45 radius of curvature along the line and the multiple upper and middle insole bends 1044 (see...) Figure 44 The radius of curvature along line 44-44. Similarly, the radius of curvature along line 46-46 of the multiple base plate curved portions 1058 formed by the multiple base plate ribs 280 is smaller than that of the multiple base plate curved portions 1052 (see...). Figure 45 The radius of curvature along the line is 45-45, and there are multiple curved sections of the base plate 1046 (see...). Figure 44 The radius of curvature along line 44-44. Finally, the radius of curvature of the multiple front midsole curved portions 1060 formed by multiple front midsole indentations 406, 408 along line 46-46 is smaller than that of the multiple front midsole curved portions 1054 (see...). Figure 45 The 45-45 radius of curvature along the line and multiple bends in the forefoot and midsole 1048 (see) Figure 44 The radius of curvature along line 44-44.

[0080] Continue to refer to Figure 46 The sole plate 72 is positioned approximately centered within the first forefoot midsole 74 along line 46-46. The first forefoot midsole 74 is discontinuous along the central longitudinal plane 1030 of the sole structure 64. The first outsole 78 is also discontinuous along the central longitudinal plane 1030 of the sole structure 64. Because the first forefoot midsole 74 and the first outsole 78 are discontinuous along the central longitudinal plane 1030, the lower side 1002 of the sole plate 72 forms the bottom plane of the sole structure 64 along the central longitudinal plane 1030 of the sole structure 64.

[0081] Any one of the following: first upper midsole 70, second upper midsole 180, first front midsole 74, second front midsole 500, first rear midsole 76, or second rear midsole 700 may be referred to as the first midsole, second midsole, or third midsole. In some embodiments, the first upper midsole 70, second upper midsole 180, first front midsole 74, second front midsole 500, first rear midsole 76, and second rear midsole 700 are made of the same material. In some embodiments, any one of the following: first upper midsole 70, second upper midsole 180, first front midsole 74, second front midsole 500, first rear midsole 76, or second rear midsole 700 is made of different materials, such that any one of the following: first upper midsole 70, second upper midsole 180, first front midsole 74, second front midsole 500, first rear midsole 76, or second rear midsole 700 may be made of any one of the first, second, or third materials.

[0082] Any embodiment described herein may be modified to include any structure or method disclosed in combination with different embodiments. Furthermore, this disclosure is not limited to footwear articles of the specific types shown. Moreover, aspects of footwear articles of any embodiment disclosed herein may be modified for use in any type of footwear, apparel, or other sporting equipment.

[0083] As for the foregoing, those skilled in the art will understand that while this disclosure has been described above in conjunction with specific embodiments and examples, it is not necessarily limited thereto and is intended to cover many other embodiments, examples, uses, as well as modifications and deviations from those embodiments, examples, and uses, by way of the appended claims. The full disclosure of each patent and publication cited herein is incorporated by reference as if each patent or publication were individually incorporated herein by reference. Various features and advantages of this disclosure are set forth in the appended claims.

[0084] Industrial applicability In view of the foregoing description, those skilled in the art will be able to make many obvious modifications to this disclosure. Therefore, this description should be construed as illustrative only and is presented in order to enable those skilled in the art to make and use this disclosure. This disclosure reserves proprietary rights to all modifications falling within the scope of the appended claims.

Claims

1. A footwear article having a sole structure and an upper, and defining a widest portion, a narrowest portion, a toe end, a heel end, an outer side, and an inner side, said sole structure comprising: The upper and midsole are directly connected to the shoe upper; The base plate is directly connected to the upper insole; The fore midsole is directly connected to the upper midsole and the sole plate and is located between the toe end of the sole structure and the widest part of the sole structure. The rear midsole is directly connected to the upper midsole and the sole plate and is located between the heel end of the sole structure and the narrowest part of the sole structure. as well as Outsole, which defines the ground contact surface and is directly connected to the fore midsole and the rear midsole, The upper bottom includes an upper side and a lower side. The upper side of the upper insole includes a flange that surrounds the outer edge of the upper side. The lower side of the upper and middle bottom includes multiple grooves, and The upper bottom includes an opening that extends from the upper side to the lower side.

2. The footwear product according to claim 1, wherein, The upper insole also includes sidewalls that extend along the outer edge of the upper insole and between the upper and lower sides of the upper insole. The sidewalls therein are generally smooth.

3. The footwear product according to claim 1, wherein, The plurality of grooves of the upper midsole are arranged between the toe end of the upper midsole and the opening of the upper midsole.

4. The footwear product according to claim 1, wherein, The thickness of the flange of the upper midsole at the widest portion of the sole structure is greater than the thickness of the flange of the upper midsole at the narrowest portion of the sole structure.

5. The footwear product according to claim 1, wherein, The plurality of grooves includes a first groove and a second groove, and The first groove is located between the toe end of the upper midsole and the second groove.

6. The footwear product according to claim 5, wherein, The plurality of grooves includes a third groove, and The shape of the third groove is substantially the same as that of the second groove.

7. The footwear product according to claim 1, wherein, The opening in the upper and middle bottom defines a cylindrical shape.

8. The footwear product according to claim 1, wherein, The outsole comprises multiple parts.

9. The footwear product according to claim 1, wherein, The front midsole and the rear midsole are spaced apart.

10. A footwear article having a sole structure and an upper, and defining a widest portion, a narrowest portion, a toe end, a heel end, an outer side, and an inner side, said sole structure comprising: The upper and midsole are directly connected to the shoe upper; The base plate is directly connected to the upper insole; The fore midsole is directly connected to the upper midsole and the sole plate and is located between the toe end of the sole structure and the widest part of the sole structure. The rear midsole is directly connected to the upper midsole and the sole plate and is located between the heel end of the sole structure and the narrowest part of the sole structure. as well as Outsole, which defines the ground contact surface and is directly connected to the fore midsole and the rear midsole, The forefoot midsole includes an upper side, a lower side, a central longitudinal plane, a toe end, and a rear end, with the rear end located on the side opposite to the toe end. The forefoot midsole further includes a notch that extends from the rear end of the forefoot midsole toward the toe end of the forefoot midsole. Wherein, the notch extends approximately along the central longitudinal plane of the front insole, and The notch defines a curved profile that bends toward the inside of the front midsole, such that the front end of the notch is positioned closer to the inside of the front midsole than to the outside of the front midsole.

11. The footwear article according to claim 10, wherein, The front midsole is positioned forward in the lateral direction and spaced apart from the rear midsole, creating a gap between the front and rear midsoles. The underside of the sole plate is exposed in the gap between the front midsole and the rear midsole.

12. The footwear article according to claim 10, wherein, The upper side of the front midsole includes a first recess, a second recess, and a third recess, and The second recess and the third recess are disposed within the first recess.

13. The footwear article according to claim 12, wherein, The outer edge of the first recess defines multiple peaks and multiple valleys.

14. The footwear article according to claim 12, wherein, The second recess is located between the central longitudinal plane and the inner side of the front insole, and The third recess is located between the central longitudinal plane and the outer side of the front midsole.

15. The footwear article according to claim 10, wherein, The outer edge of the front midsole defines a flange extending upward from the upper side of the front midsole.

16. A footwear article having a sole structure and an upper, and defining a widest portion, a narrowest portion, a toe end, a heel end, an outer side, and an inner side, said sole structure comprising: The upper and midsole are directly connected to the shoe upper; The base plate is directly connected to the upper insole; The fore midsole is directly connected to the upper midsole and the sole plate and is located between the toe end of the sole structure and the widest part of the sole structure. The rear midsole is directly connected to the upper midsole and the sole plate and is located between the heel end of the sole structure and the narrowest part of the sole structure. as well as Outsole, which defines the ground contact surface and is directly connected to the fore midsole and the rear midsole, The rear midsole includes an upper side, a lower side, a heel end, a front end, a central longitudinal plane, an outer side, and an inner side, with the front end located on the side opposite to the heel end. The front end includes a pointed portion that extends toward the toe end of the sole structure and extends further than the rest of the rear midsole. Wherein, the pointed portion extends along the central longitudinal plane, and The opening is partially disposed within the pointed portion and extends from the upper side of the rear midsole to the lower side of the rear midsole.

17. The footwear article according to claim 16, wherein, The orifice is partially located behind the pointed portion.

18. The footwear article according to claim 16, wherein, The rear midsole also includes a first recess, a second recess, and a third recess, and The second recess and the third recess are disposed within the first recess.

19. The footwear article according to claim 18, wherein, The opening of the rear midsole is located between the second recess and the third recess, and The opening of the rear midsole is located within the first recess.

20. The footwear article according to claim 18, wherein, The lower side of the rear midsole includes a gap extending from the heel end of the rear midsole to the front end of the rear midsole, and The orifice is located within the gap.

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