Sole structure for an article of footwear

Abstract

A sole structure (200) for an article of footwear (10) includes a foam element (206) having a top surface (214) and a bottom surface (216). The foam element (206) includes a recess (220) that (i) is formed in one of the top surface or the bottom surface, (ii) extends from a first end (226) in a forefoot region (12) of the sole structure to a second end (228) in a midfoot region (14) of the sole structure (200), (iii) has a first edge extending between the first end (226) and the second end (228) and disposed proximate a peripheral region (26) of the sole structure (200), and (iv) has a second edge extending between the first end (226) and the second end (228) and disposed in an interior region (28) of the sole structure (200). A cushioning device is disposed within the recess (220) and includes an outer surface that is substantially flush with the one of the top surface (214) or the bottom surface (216) of the foam element (206).

Description

[0001] This application is a divisional application of the application filed on July 30, 2019, application number 201980056735.7, entitled "Sole Structure for an Article of Footwear".

[0002] Cross Reference to Related Applications

[0003] This patent application is a PCT International Application which claims priority to U.S. Application No. 16 / 525,974 filed July 30, 2019, which claims priority under 35 U.S.C. § 119(e) to U.S. Provisional Application No. 62 / 712,590 filed July 31, 2018. The disclosures of these prior applications are considered part of and are hereby incorporated by reference in their entirety into this application. TECHNICAL FIELD

[0004] The present invention relates generally to sole structures for articles of footwear, and more specifically, to sole structures incorporating cushioning devices. BACKGROUND

[0005] This section provides background information which is not prior art to the disclosure contained herein.

[0006] Articles of footwear conventionally include an upper and a sole structure. The upper is formed from any appropriate material or materials to receive, secure, and support the foot on the sole structure. The upper can cooperate with laces, straps, or other fasteners to adjust the fit of the upper around the foot. A bottom portion of the upper, proximate the bottom surface of the foot, is attached to the sole structure.

[0007] The sole structure generally includes a layered arrangement between the ground surface and the upper. One layer of the sole structure includes an outsole that provides frictional resistance and traction with the ground surface. The outsole can be formed from rubber or other materials that impart durability and resistance to wear and enhance traction with the ground surface. Another layer of the sole structure includes a midsole disposed between the outsole and the upper. The midsole provides cushioning for the foot and can be formed in part from a polymeric foam material that elastically compresses under applied loads to cushion the foot by attenuating ground reaction forces. The midsole can additionally or alternatively incorporate fluid-filled bladders to increase the durability of the sole structure, as well as to provide cushioning for the foot by elastically compressing under applied loads to reduce ground reaction forces.

[0008] The sole structure can also include a comfort-enhancing insole or sockliner that is located within a void near the bottom portion of the upper, and a strobel that is attached to the upper and disposed between the midsole and the insole or sockliner.

[0009] Midsoles employing fluid-filled bladders typically include a bladder formed from two polymer material barriers that are sealed or bonded together. The fluid-filled bladder is pressurized with a fluid such as air and can incorporate tensile members within the bladder to maintain the shape of the bladder when elastically compressed under applied loads, such as during athletic activities. Generally, the design focus of the bladder is to balance support to the foot and cushioning characteristics related to responsiveness when the bladder is elastically compressed under applied loads. BRIEF DESCRIPTION OF DRAWINGS

[0010] The drawings described herein are for purposes of illustration only and are not intended to limit the scope of the present disclosure.

[0011] Figure 1 is a side view of an article of footwear according to the principles of the present disclosure;

[0012] Figure 2 is Figure 1 is an exploded view of the article of footwear of

[0013] Figure 3 is Figure 1 is a bottom view of the sole structure of the article of footwear of

[0014] Figure 4 is Figure 1 is a cross-sectional view of the article of footwear of Figure 3 taken along line 4-4 of corresponding to a longitudinal axis of the article of footwear;

[0015] Figure 5 is Figure 1 is a cross-sectional view of the article of footwear of Figure 3 taken along line 5-5 of corresponding to a forefoot region of the article of footwear;

[0016] Figure 6 is

[0017] Figure 7 is Figure 6 is an exploded view of the article of footwear of

[0018] Figure 8 is Figure 6 is a top view of the sole structure of the article of footwear of

[0019] Figure 9 is Figure 6 is a cross-sectional view of the article of footwear of Figure 8 taken along line 9-9 of corresponding to a longitudinal axis of the article of footwear;

[0020] Figure 10 isFigure 6 a cross-sectional view of the article of footwear of Figure 8 taken along line 10-10 of the article of footwear of

[0021] Figure 11 a side view of the article of footwear according to the principles of the present disclosure;

[0022] Figure 12 a cross-sectional view of the article of footwear of Figure 11 taken along line 14-14 of the article of footwear of

[0023] Figure 13 a bottom view of the article of footwear of Figure 11 taken along line 15-15 of the article of footwear of

[0024] Figure 14 a perspective view of the article of footwear according to the principles of the present disclosure; Figure 11 Figure 13 a cross-sectional view of the article of footwear of

[0025] Figure 15 Figure 11 a cross-sectional view of the article of footwear of Figure 13 taken along line 19-19 of the article of footwear of

[0026] Figure 16 a cross-sectional view of the article of footwear of

[0027] Figure 17 a cross-sectional view of the article of footwear of Figure 16 taken along line 20-20 of the article of footwear of

[0028] Figure 18 a top view of the sole structure of the article of footwear of Figure 16

[0029] a cross-sectional view of the article of footwear of Figure 19 taken along line 19-19 of the article of footwear of Figure 16 Figure 18 a cross-sectional view of the article of footwear of

[0030] taken along line 20-20 of the article of footwear of Figure 20 Figure 16 Figure 18 a bottom view of the article of footwear of

[0031] Throughout the drawings, like- referenced numerals reference like- referenced parts throughout the several views. DETAILED DESCRIPTION

[0032] ​​​​Example constructions will now be described more fully with reference to the accompanying drawings. Example constructions are provided so that this disclosure will be thorough, and will fully convey the scope to those who are skilled in the art. Specific details are set forth in order to provide a thorough understanding of the example constructions, and so that examples of the present disclosure can be realized. It will be apparent to one skilled in the art, however, that the specific detail need not be used in order to practice the present disclosure, and that the present disclosure can be realized in many different forms, and that the present disclosure is not limited to the specific examples described.

[0033] The terminology used herein is for the purpose of describing particular example constructions only and is not intended to be limiting. As used herein, the singular articles "a," "an," and "the" can be intended to also cover the plural, unless it is clear from the context that they mean the singular only. The terms "comprises," "comprising," "includes," "including," and the like can be

[0034] When an element or layer is referred to as being "on," "engaged to," "connected to," "attached to," or "coupled to" another element or layer, it can be directly on, engaged, connected, attached, or coupled to the other element or layer, or intervening elements or layers can be present. In contrast, when an element is referred to as being "directly on," "directly engaged to," "directly connected to," "directly attached to," or "directly coupled to" another element or layer, there are no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in the same way (e.g., "between" versus "directly between," "adjacent" versus "directly adjacent," etc.). As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0035] The terms first, second, third, etc. can be used herein to describe various elements, components, regions, layers and / or sections. These elements, components, regions, layers and / or sections should not be limited by these terms. These data can be used only to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first", "second" and other numerical terms do not imply order or sequence unless expressly indicated herein. Thus, a first element, component, region, layer or section discussed below can be called a second element, component, region, layer or section without departing from the teachings of the example constructions.

[0036] A sole structure for an article of footwear is provided that includes a foam element having a top surface and a bottom surface formed on a side of the foam element opposite the top surface. The foam element includes a recess (i) formed in one of the top surface or the bottom surface, (ii) extending from a first end in a forefoot region of the sole structure to a second end in a midfoot region of the sole structure, (iii) having a first edge extending between the first end and the second end and disposed proximate a peripheral region of the sole structure, and (iv) having a second edge extending between the first end and the second end and disposed in an interior region of the sole structure. A cushioning device is disposed within the recess and includes an outer surface that is substantially flush with the one of the top surface or the bottom surface of the foam element.

[0037] In one construction, the cushioning device is a bladder that is matingly received by the recess. The bladder can include a tensile member disposed therein. Additionally or alternatively, the bladder can extend continuously from the first end of the recess to the second end of the recess.

[0038] The first end of the recess can be curved and / or the second end of the recess can be substantially straight.

[0039] The cushioning device can include a first bladder disposed proximate the first end of the recess and a second bladder disposed proximate the second end of the recess.

[0040] In one construction, the first edge terminates at a distal end that is spaced apart from one of the top surface and the bottom surface to form an opening through the peripheral region. The cushioning device can be exposed through the opening.

[0041] The first edge can be located on a lateral side of the sole structure. Additionally or alternatively, the cushioning device can substantially fill the recess.

[0042] A sole structure for an article of footwear is provided that includes a foam element extending along a first longitudinal axis from a forward end of the sole structure to a rearward end of the sole structure and including a bottom surface having a recess. The recess (i) extends from a first end in a forefoot region of the sole structure to a second end in a midfoot region of the sole structure and (ii) extends along a second longitudinal axis that is laterally offset from the first longitudinal axis toward a lateral side of the sole structure. A cushioning device is disposed within and substantially fills the recess, an outer surface of the cushioning device being substantially flush with the bottom surface of the foam element.

[0043] In one configuration, the cushioning device is a bladder that is matingly received by the recess. The bladder can include a tensile member disposed therein. Additionally or alternatively, the bladder can extend continuously from the first end of the recess to the second end of the recess.

[0044] In one configuration, the first end of the recess can be curved and the second end of the recess can be substantially straight.

[0045] The cushioning device can include a first bladder disposed adjacent the first end of the recess and a second bladder disposed adjacent the second end of the recess.

[0046] An outer edge of the recess can extend through a peripheral side surface of the foam element to form an opening in the peripheral side surface.

[0047] In one configuration, the opening can be formed in a lateral side of the sole structure. Additionally or alternatively, the cushioning device can substantially fill the recess. In some examples, the cushioning device includes a pressurized fluid-filled bladder.

[0048] Referring to Figure 1 , the article of footwear 100 includes an upper 100 and a sole structure 200. The sole structure 10 can be divided into one or more regions. The regions can include a forefoot region 12, a midfoot region 14, and a heel region 16. The forefoot region 12 corresponds with the toes and forepart of the foot. The midfoot region 14 can correspond with the arch of the foot, and the heel region 16 can correspond with the back part of the foot, including the heel bone.

[0049] The article of footwear 10 can also include a forward end 18 associated with a forward-most point of the forefoot region 12 and a rearward end 20 corresponding with a rearward-most point of the heel region 16. As Figure 3 shown, a longitudinal axis A 10 of the article of footwear 10 extends along a length of the article of footwear 10 from the forward end 18 to the rearward end 20, parallel to the ground. As shown, the longitudinal axis A 10Positioned centrally along the length of the article of footwear 10 and generally dividing the article of footwear 10 into a medial side 22 and a lateral side 24. Accordingly, the medial side 22 and the lateral side 24 each correspond to opposite sides of the article of footwear 10 and extend through the regions 12, 14, 16. As used herein, the longitudinal direction refers to a direction extending from the anterior end 18 to the posterior end 20, while the lateral direction refers to a direction transverse to the longitudinal direction and extending from the medial side 22 to the lateral side 24.

[0050] The article of footwear 10, and more particularly the sole structure 200, can be further described as including a peripheral region 26 and an interior region 28, as indicated by the dashed lines in Figure 3 The peripheral region 26 is generally described as the region between the interior region 28 and the outer periphery of the sole structure 200. In particular, the peripheral region 26 extends from the forefoot region 12 to the heel region 16 along each of the medial side 22 and the lateral side 24, and wraps around each of the forefoot region 12 and the heel region 16. The interior region 28 is surrounded by the peripheral region 26 and extends from the forefoot region 12 to the heel region 16 along a central portion of the sole structure 200. Thus, each of the forefoot region 12, the midfoot region 14, and the heel region 16 can be described as including the peripheral region 26 and the interior region 28.

[0051] Referring to Figure 1 The upper 100 includes an interior surface defining an interior void 102 configured to receive and secure a foot for support on the sole structure 200. The upper 100 can be formed from one or more materials that are stitched or bonded together to form the interior void 102. Suitable materials for the upper 100 can include, but are not limited to, mesh, fabric, foam, leather, and synthetic leather. The materials can be selected and positioned to impart durability, breathability, wear resistance, flexibility, and comfort.

[0052] As best shown in the cross-sectional view of Figure 4 In some examples, the upper 100 includes a strobel 104 having a bottom surface opposite the sole structure 200 and an opposing top surface forming a footbed 106 of the interior void 102. The strobel can be secured to the upper 100 with stitching or an adhesive. The footbed 106 can be contoured to conform to the contour of the bottom surface of the foot (e.g., flat). Optionally, the upper 100 can also include additional layers, such as an insole or sockliner 108, which can be disposed on the strobel 104 and within the interior void 102 of the upper 100 to accommodate the plantar surface of the foot to enhance the comfort of the article of footwear 10.

[0053] The ankle opening 110 in the heel portion 16 can provide access to the interior void 102. For example, the ankle opening 110 can accommodate a foot to secure the foot within the void 102 and facilitate the foot moving in and out of the interior void 102. In some examples, one or more fasteners 112 extend along the upper 100 to adjust the fit of the interior void 102 around the foot while accommodating the foot moving in and out of the interior void 102. The upper 100 can include apertures, such as eyelets, and / or other engagement features, such as fabric or mesh loops, that receive the fasteners 112. The fasteners 112 can include laces, straps, cords, hook-and-loop, or any other suitable type of fastener. The upper 100 can include a tongue portion 114 that extends between the interior void 102 and the fasteners 112.

[0054] Referring to Figure 1 , the sole structure 200 includes a midsole 202 configured to provide cushioning characteristics of the sole structure 200, and an outsole 204 configured to provide a ground-engaging surface 30 of the article of footwear 10. Unlike conventional sole structures, the midsole 202 is composite formed and includes a plurality of sub-components for providing localized cushioning and performance characteristics to the sole structure 200. For example, the midsole 202 includes a foam element 206 and a cushioning device 208 that cooperate to define a bottom surface of the midsole 202 for attachment of the outsole 204. As described in greater detail below, the outsole 204 is attached to the bottom surface of the midsole 202 and forms the ground-engaging surface 30 of the footwear 10. The foam element 206, the cushioning device 208, and the outsole 204 can be assembled and secured to one another using various bonding methods, for example, including adhesives and fusing.

[0055] Referring to Figure 2 , the foam element 206 extends from a first end 210 at the forward end 18 of the footwear 10 to a second end 212 at the rearward end 20 of the footwear 10. In some examples, the foam element 206 can be a unitary foam element 206 that includes a single continuous body extending from the forward end 18 to the rearward end 20. The foam element 206 includes a top surface 214 and a bottom surface 216 formed on an opposite side of the foam element 206 from the top surface 214, whereby a distance between the top surface 214 and the bottom surface 216 defines a thickness T 206 of the foam element 206. As discussed in greater detail below, the thickness T 206 of the foam element 206 can be variable. A peripheral side surface 218 extends between the top surface 214 and the bottom surface 216 and defines an outer peripheral contour of the foam element 206.

[0056] The foam element 206 includes a recess 220 formed in the bottom surface 216. The recess 220 is defined by an intermediate surface 222 disposed between the top surface 214 and the bottom surface 216 and a peripheral wall 224 extending from the intermediate surface 222 to the bottom surface 216. Therefore, the depth D of the recess 220 is... 220 The outer contour of the recess 220 is defined by the distance from the bottom surface 216 to the intermediate surface 222, while the outer contour of the recess 220 is defined by the peripheral wall 224.

[0057] The recess 220 extends along the length of the foam element 206 from a first end 226 in the forefoot region 12 to a second end 228 in the midfoot region 14. The recess 220 also includes an inner portion 230 and an outer portion 232 formed on the side of the recess 220 opposite to the inner portion 230. The inner portion 230 and the outer portion 232 extend from the first end 226 to the second end 228, thereby defining the length L of the recess 220 by the maximum distance from the first end 226 to the second end 228. 220 The maximum distance from the inner side 230 to the outer side 232 defines the width W of the recess 220. 220 ,like Figure 3 As shown. As shown, the longitudinal axis A of the recess 220 220 It extends from the first end 226 to the second end 228 and is centrally located between the inner side 230 and the outer side 232 of the recess 220.

[0058] Typically, the recess 220 is relative to the longitudinal axis A of the footwear 10. 10 Laterally offset, thus the longitudinal axis A of the recess 220 220 With the longitudinal axis A of footwear 10 10 They are spaced apart and extend in the same direction. In other words, the distance between the inner portion 230 and the peripheral side surface 218 is greater than the distance between the outer portion 232 and the peripheral side surface 218. In some examples, the inner portion 230 of the recess 220 is formed in the inner region 28 of the sole structure 200, while the outer portion 232 is formed in the peripheral region 26 of the sole structure 200.

[0059] In particular examples, the recess 220 is offset toward the lateral side 24 of the sole structure 200, whereby the lateral portion 232 is formed proximate the peripheral side surface 218 along the lateral side 24, while the medial portion 230 is spaced apart from the peripheral side surface 218 along the medial side 22. As shown, the portion of the peripheral wall 224 that defines the lateral portion 232 of the recess 220 can only partially extend from the medial surface 222 to the bottom surface 216, whereby a terminal end 233 of the peripheral wall 224 defines an opening 234 that extends through the peripheral side surface 218 of the foam element 206. Conversely, the portion of the peripheral wall 224 that defines the medial portion 230 extends completely from the medial surface 222 to the bottom surface 216 to completely enclose the recess 220 along the medial side 22. In some examples, the lateral portion 232 is formed in the peripheral region 26 along the lateral side 24, while the medial portion 230 is formed in the interior region 28 along the medial side 22. In some examples, the medial portion 230 of the recess 220 can be formed in the interior region 28 along the medial side 22 proximate the longitudinal axis A 10 between the peripheral side surface 218, as Figure 3 shown.

[0060] Still referring to Figure 3 , the bottom surface 216 of the foam element 206 extends between the medial portion 230 of the recess 220 and the peripheral side surface 218 from the first end 226 of the recess 220 to the second end 228 of the recess 220. Thus, the sole structure 200 is configured to provide regional cushioning in the forefoot region 12 and the midfoot region 14, whereby the cushioning arrangement 208 defines the cushioning characteristics of the sole structure 200 in the forefoot region 12 and the midfoot region 14 along the lateral side 24, while the foam element 206 defines the cushioning characteristics of the sole structure along the medial side 22 of the midfoot region 14 and the forefoot region 12.

[0061] As discussed in greater detail below, the peripheral wall 224 of the recess 220 is configured to cooperate with the outer peripheral contour of the cushioning arrangement 208, such that the cushioning arrangement 208 substantially fills the recess 220. As such, the contour of the peripheral wall 224 will correspond to the desired contour of the cushioning arrangement 208. For example, as Figure 2 shown, the cushioning arrangement 208 is a unitary structure that continuously extends from the first end 226 of the recess 220 to the second end 228 of the recess 220. Here, the first end 226 of the recess 220 can be arcuate to accommodate the arcuate outer periphery of the cushioning arrangement 208, while the second end 228 of the recess 220 is substantially straight to accommodate the corresponding contour of the cushioning arrangement 208. As shown, the medial portion 230 extends along the medial side 22 through the interior region 28 along a continuous arcuate path. Likewise, the lateral portion 232 extends along the peripheral region 26 along the lateral side 24 along a continuous arcuate path.

[0062] Referring to Figure 2The buffer arrangement 208 includes a top surface 240 and a bottom surface 242 formed on the side of the buffer arrangement 208 opposite to the top surface 240, such that the distance between the top surface 240 and the bottom surface 242 defines the thickness T of the buffer arrangement 208. 208 The outer peripheral surface 244 extends between the top surface 240 and the bottom surface 242 and defines the outer peripheral profile of the buffer arrangement 208.

[0063] like Figure 4 As shown, the thickness T of the buffer device 208 208 The depth D is basically similar to that of the recess 220. 220 This arrangement ensures that when the top surface 240 of the cushioning device 208 engages (i.e., contacts) the intermediate surface 222 of the recess 220, the bottom surface 242 of the cushioning device 208 is flush with the bottom surface 216 of the foam element 206. Therefore, the bottom surface 216 of the foam element 206 and the bottom surface 242 of the cushioning device 208 cooperate to define a substantially continuous, flat, load-bearing bottom surface of the insole 202.

[0064] A cushioning device 208 extends from a first end 246 to a second end 248, which is formed at the end of the cushioning device 208 opposite to the first end 246. The cushioning device 208 also includes an inner portion 250 and an outer portion 252 formed on the side of the cushioning device 208 opposite to the inner portion 250. The inner portion 250 and the outer portion 252 extend from the first end 246 to the second end 248, thereby defining the length L of the cushioning device 208 by the maximum distance from the first end 246 to the second end 248. 220 The maximum distance from the inner side 250 to the outer side 252 defines the width W of the buffer device 208. 208 ,like Figure 3 As best shown.

[0065] The length L of the buffer device 208 208 and width W 208 The length L of the recess 220 220 and width W 220 They are essentially similar. Similarly, the contours of the first end 246, the second end 248, the inner portion 250, and the outer portion 252 of the buffer device 208, defined by the peripheral surface 244, correspond to the first end 226, the second end 228, the inner portion 230, and the outer portion 232 of the recess 220. Therefore, when the buffer device 208 is disposed within the recess 220, the outer peripheral surface 244 of the buffer device 208 is received by and contacts the peripheral wall 224 of the recess 220, such that the buffer device 208 substantially fills the recess 220. Thus, the buffer device 208 is inherently arranged in the same position as the recess 220.

[0066] As noted above, the portion of the peripheral wall 224 forming the outer side 232 of the recess 220 can extend partially from the medial surface 222 to the bottom surface 216, whereby the opening 234 extends from the peripheral side surface 218 to the recess 220 on the outer side 24. Accordingly, the outer side 252 of the cushioning arrangement 208 can be exposed through the opening 234, as shown in the example of FIG. 3. In some examples, the outer side 252 of the cushioning arrangement 208 is recessed inwardly from the peripheral side surface 218. Alternatively, the outer side 252 of the cushioning arrangement 208 can extend at least partially through the opening 234, such that the outer side 252 of the cushioning arrangement 208 cooperates with the peripheral side surface 218 to form a substantially continuous outer surface of the sole structure 200. Figure 1 As noted above, the portion of the peripheral wall 224 forming the outer side 232 of the recess 220 can extend partially from the medial surface 222 to the bottom surface 216, whereby the opening 234 extends from the peripheral side surface 218 to the recess 220 on the outer side 24. Accordingly, the outer side 252 of the cushioning arrangement 208 can be exposed through the opening 234, as shown in the example of FIG. 3. In some examples, the outer side 252 of the cushioning arrangement 208 is recessed inwardly from the peripheral side surface 218. Alternatively, the outer side 252 of the cushioning arrangement 208 can extend at least partially through the opening 234, such that the outer side 252 of the cushioning arrangement 208 cooperates with the peripheral side surface 218 to form a substantially continuous outer surface of the sole structure 200.

[0067] As noted above, the portion of the peripheral wall 224 forming the outer side 232 of the recess 220 can extend partially from the medial surface 222 to the bottom surface 216, whereby the opening 234 extends from the peripheral side surface 218 to the recess 220 on the outer side 24. Accordingly, the outer side 252 of the cushioning arrangement 208 can be exposed through the opening 234, as shown in the example of FIG. 3. In some examples, the outer side 252 of the cushioning arrangement 208 is recessed inwardly from the peripheral side surface 218. Alternatively, the outer side 252 of the cushioning arrangement 208 can extend at least partially through the opening 234, such that the outer side 252 of the cushioning arrangement 208 cooperates with the peripheral side surface 218 to form a substantially continuous outer surface of the sole structure 200. Figure 2 As shown in the example of FIG. 4, the cushioning arrangement 208 is formed as a unitary cushioning arrangement 208 and includes a single bladder 254 that is positioned along the lateral side 24 of the sole structure and extends from the forefoot region 12 to the midfoot region 14. Here, the lateral side 252 of the cushioning arrangement 208 is proximate the lateral side 24 of the sole structure 200, while the medial side 250 is disposed within the interior region 28 of the sole structure 200. In one example of the unitary cushioning arrangement 208, the bladder 254 extends continuously from a first end 246 of the cushioning arrangement 208 to a second end 248 of the cushioning arrangement, as shown in FIG. 4. Thus, the medial side 250 and the lateral side 252 of the cushioning arrangement 208 are each formed continuously and extend along an arcuate path from the first end 246 to the second end 248. Likewise, the top surface 240 and the bottom surface 242 are formed continuously from the first end 246 to the second end 248 and from the medial side 230 to the lateral side 232. In some examples, the first end 246 can be arcuate, while the second end 248 can be straight, as shown in FIG. 4. Figure 2 As noted above, the portion of the peripheral wall 224 forming the outer side 232 of the recess 220 can extend partially from the medial surface 222 to the bottom surface 216, whereby the opening 234 extends from the peripheral side surface 218 to the recess 220 on the outer side 24. Accordingly, the outer side 252 of the cushioning arrangement 208 can be exposed through the opening 234, as shown in the example of FIG. 3. In some examples, the outer side 252 of the cushioning arrangement 208 is recessed inwardly from the peripheral side surface 218. Alternatively, the outer side 252 of the cushioning arrangement 208 can extend at least partially through the opening 234, such that the outer side 252 of the cushioning arrangement 208 cooperates with the peripheral side surface 218 to form a substantially continuous outer surface of the sole structure 200. Figure 3 As noted above, the portion of the peripheral wall 224 forming the outer side 232 of the recess 220 can extend partially from the medial surface 222 to the bottom surface 216, whereby the opening 234 extends from the peripheral side surface 218 to the recess 220 on the outer side 24. Accordingly, the outer side 252 of the cushioning arrangement 208 can be exposed through the opening 234, as shown in the example of FIG. 3. In some examples, the outer side 252 of the cushioning arrangement 208 is recessed inwardly from the peripheral side surface 218. Alternatively, the outer side 252 of the cushioning arrangement 208 can extend at least partially through the opening 234, such that the outer side 252 of the cushioning arrangement 208 cooperates with the peripheral side surface 218 to form a substantially continuous outer surface of the sole structure 200.

[0068] As noted above, the portion of the peripheral wall 224 forming the outer side 232 of the recess 220 can extend partially from the medial surface 222 to the bottom surface 216, whereby the opening 234 extends from the peripheral side surface 218 to the recess 220 on the outer side 24. Accordingly, the outer side 252 of the cushioning arrangement 208 can be exposed through the opening 234, as shown in the example of FIG. 3. In some examples, the outer side 252 of the cushioning arrangement 208 is recessed inwardly from the peripheral side surface 218. Alternatively, the outer side 252 of the cushioning arrangement 208 can extend at least partially through the opening 234, such that the outer side 252 of the cushioning arrangement 208 cooperates with the peripheral side surface 218 to form a substantially continuous outer surface of the sole structure 200.

[0069] As noted above, the portion of the peripheral wall 224 forming the outer side 232 of the recess 220 can extend partially from the medial surface 222 to the bottom surface 216, whereby the opening 234 extends from the peripheral side surface 218 to the recess 220 on the outer side 24. Accordingly, the outer side 252 of the cushioning arrangement 208 can be exposed through the opening 234, as shown in the example of FIG. 3. In some examples, the outer side 252 of the cushioning arrangement 208 is recessed inwardly from the peripheral side surface 218. Alternatively, the outer side 252 of the cushioning arrangement 208 can extend at least partially through the opening 234, such that the outer side 252 of the cushioning arrangement 208 cooperates with the peripheral side surface 218 to form a substantially continuous outer surface of the sole structure 200. Figure 2As shown, the outsole 204 includes an inner surface 272 and an outer surface 274 formed on a side of the outsole 204 opposite the inner surface 272. As described above, the bottom surface 216 of the foam element 206 and the bottom surface 242 of the cushioning arrangement 208 cooperate to form a substantially continuous bottom surface of the midsole 202 to which the inner surface 272 of the outsole 204 is attached. In the example shown, the outsole 204 extends continuously from the front end 18 to the rear end 20 and from the medial side 22 to the lateral side 24, whereby the outer surface 274 of the outsole forms the ground engaging surface 30 of the article of footwear 10. In other embodiments, the outsole 204 can be fragmented, wherein the outsole 204 includes a plurality of outsole portions distributed along the bottom surface of the midsole 202. In some examples, the outsole 204 extends over the front end 18 of the article of footwear and forms a toe cap 276 of the article of footwear. The outsole 204 can be formed of a resilient material, such as rubber, which provides the ground engaging surface 30 of the article of footwear 10 that provides traction and durability.

[0070] Referring to Figures 6-10 , an article of footwear 10a is provided that includes an upper 100 and a sole structure 200a attached to the upper 100. In view of the substantial similarity in structure and function of the components associated with the article of footwear 10 relative to the article of footwear 10a, the same reference numerals are used in the following description and drawings to identify the same components, while similar reference numerals including an alphabetic extension are used to identify those components that have been modified.

[0071] Referring to Figure 7 , the sole structure 200a includes a midsole 202a configured to provide cushioning characteristics of the sole structure 200a, and an outsole 204 configured to provide the ground engaging surface 30 of the article of footwear 10a. The midsole 202a is composite formed and includes a plurality of sub-components for providing localized cushioning and performance characteristics to the sole structure 200a. For example, the midsole 202a includes a foam element 206a and a cushioning arrangement 208 that cooperate to define a top surface of the midsole 202a for attachment of the outsole 204. The outsole 204 is attached to the bottom surface 216 of the midsole 202a and forms the ground engaging surface 30 of the article of footwear 10a. The foam element 206a, the cushioning arrangement 208, and the outsole 204 can be assembled and secured to one another using various bonding methods, including, for example, adhesion and melting.

[0072] As shown, Figure 7 the foam element 206a includes a recess 220a formed in the top surface 214. The recess 220a is defined by an intermediate surface 222a disposed between the top surface 214 and the bottom surface 216, and a peripheral wall 224a extending from the intermediate surface 222a to the top surface 214. Thus, the depth D of the recess 220a is defined by the distance between the top surface 214 and the intermediate surface 222a. In the example shown, the recess 220a is substantially rectangular in shape, and the peripheral wall 224a is substantially rectangular in shape. In other embodiments, the recess 220a can have other shapes, such as, for example, circular, oval, triangular, or polygonal. In some examples, the recess 220a can be formed in the bottom surface 216 of the foam element 206a. 220aThe outer contour of the recess 220a is defined by the distance from the top surface 214 to the middle surface 222a, while the outer contour of the recess 220a is defined by the peripheral wall 224a.

[0073] The recess 220a extends along the length of the foam element 206a from a first end 226a in the forefoot region 12 to a second end 228a in the midfoot region 14. The recess 220a also includes an inner portion 230a and an outer portion 232a formed on the side of the recess 220a opposite to the inner portion 230a. The inner portion 230a and the outer portion 232a extend from the first end 226a to the second end 228a, thereby defining the length L of the recess 220a by the distance from the first end 226a to the second end 228a. 220a The distance from the inner side 230a to the outer side 232a defines the width W of the recess 220a. 220a .like Figure 8 As shown, the longitudinal axis A of the recess 220a 220a It extends from the first end 226a to the second end 228a and is centrally located between the inner side 230a and the outer side 232a of the recess 220a.

[0074] Typically, the recess 220a is relative to the longitudinal axis A of the footwear 10a. 10a Laterally offset, thus the longitudinal axis A of the recess 220a 220a With the longitudinal axis A of footwear 10a 10a They are spaced apart and extend in the same direction. In other words, the distance between the inner portion 230a and the peripheral side surface 218 is greater than the distance between the outer portion 232a and the peripheral side surface 218. In some examples, the inner portion 230a of the recess 220a is formed in the inner region 28 of the sole structure 200a, while the outer portion 232a is formed in the peripheral region 26 of the sole structure 200a.

[0075] In particular examples, the recess 220a is offset toward the lateral side 24 of the sole structure 200a, whereby the lateral side portion 232a is formed proximate the peripheral side surface 218 along the lateral side 24, while the medial side portion 230a is spaced apart from the peripheral side surface 218 along the medial side 22. As shown, the portion of the peripheral wall 224a that defines the lateral side portion 232a of the recess 220a can only partially extend from the medial surface 222a to the top surface 214, whereby a terminal end 233a of the peripheral wall 224a defines an opening 234a that extends through the peripheral side surface 218 of the foam element 206a. In contrast, the portion of the peripheral wall 224a that defines the medial side portion 230a extends completely from the medial surface 222a to the top surface 214 to completely enclose the recess 220a along the medial side 22. In some examples, the lateral side portion 232a is formed in the peripheral region 26 along the lateral side 24, while the medial side portion 230b is formed in the interior region 28. In some examples, the medial side portion 230a of the recess 220a can be formed proximate the longitudinal axis A of the footwear 10a along the medial side 22 10a .

[0076] As Figure 8 shown, the top surface 214 of the foam element 206 extends along the medial side of the recess 220a from the first end 226a of the recess 220a to the second end 228a of the recess 220, from the medial side portion 230 of the recess 220a to the peripheral side surface 218. Thus, the sole structure 200a is configured to provide regional cushioning characteristics through the forefoot region 12 and the midfoot region 14, whereby the cushioning arrangement 208 defines the cushioning characteristics of the sole structure 200a along the lateral side 24 in the forefoot region 12 and the midfoot region 14, while the foam element 206a defines the cushioning characteristics of the sole structure 200a along the medial side 22 of the midfoot region 14 and the forefoot region 12.

[0077] As discussed in greater detail below, the peripheral wall 224a of the recess 220a is configured to mate with the outer peripheral contour of the cushioning arrangement 208, such that the cushioning arrangement 208 substantially fills the recess 220a. As such, the contour of the peripheral wall 224a will correspond to the contour of the cushioning arrangement 208. For example, as Figure 7 shown, the cushioning arrangement 208 is a unitary structure that continuously extends from the first end 226a of the recess 220a to the second end 228a of the recess 220a. Here, the first end 226a of the recess 220 can be arcuate to accommodate the arcuate outer periphery of the cushioning arrangement 208, while the second end 228a of the recess 220a is substantially straight to accommodate the corresponding contour of the cushioning arrangement 208. As shown, the medial side portion 230a extends along the medial side 22 through the interior region 28 along a continuous arcuate path. Likewise, the lateral side portion 232a extends along the peripheral region 26 along the lateral side 24 along a continuous arcuate path.

[0078] Referring to Figure 7The cushion arrangement 208 includes a top surface 240 and a bottom surface 242 formed on an opposite side of the cushion arrangement 208 from the top surface 240, such that a distance from the top surface 240 to the bottom surface 242 defines a thickness T of the cushion arrangement 208 208 The outer peripheral surface 244 extends between the top surface 240 and the bottom surface 242 and defines an outer peripheral profile of the cushion arrangement 208.

[0079] As shown in Figure 8 the thickness T of the cushion arrangement 208 208 is substantially similar to the depth D of the recess 220a 220a such that, when the bottom surface 242 of the cushion arrangement 208 is engaged (i.e., contacts) the medial surface 222a of the recess 220a, the top surface 240 of the cushion arrangement 208 is flush with the top surface 214 of the foam element 206a. Thus, the top surface 214 of the foam element 206 and the top surface 240 of the cushion arrangement 208 cooperate to define a substantially continuous load-bearing top surface of the midsole 202a.

[0080] The length L 208 and the width W 208 of the cushion arrangement 208 are substantially similar to the length L 220a and the width W 220a of the recess 220a. Similarly, the profile of the first end 246, the second end 248, the medial side 250, and the lateral side 252 of the cushion arrangement 208, as defined by the peripheral surface 244, correspond to the first end 226a, the second end 228a, the medial side 230a, and the lateral side 232a of the recess 220a. Thus, when the cushion arrangement 208 is disposed within the recess 220a, the outer peripheral surface 244 of the cushion arrangement 208 is received by, and contacts, the peripheral wall 224a of the recess 220a such that the cushion arrangement substantially fills the recess 220a. Thus, the cushion arrangement 208 is inherently arranged in the same position as the recess 220a, as discussed above.

[0081] As noted above, the portion of the peripheral wall 224 that forms the lateral side 232a of the recess 220a can extend partially from the medial surface 222a to the top surface 214, such that the opening 234a extends from the peripheral side surface 218 to the recess 220a. Accordingly, the lateral side 252 of the cushion arrangement 208 can be exposed through the opening 6, as shown in Figure 6 In some examples, the lateral side 252 of the cushion arrangement 208 is recessed inwardly from the peripheral side surface 218. Alternatively, the lateral side 252 of the cushion arrangement 208 can extend at least partially through the opening 234, such that the lateral side 252 of the cushion arrangement 208 cooperates with the peripheral side surface 218 to form a substantially continuous outer surface of the sole structure 200a.

[0082] ReferringFigures 11-15 An article of footwear 10b is provided that includes an upper 100 and a sole structure 200b attached to the upper 100. In view of the substantial similarity in structure and function of the components associated with the article of footwear 10 relative to the article of footwear 10b, the same reference numerals are used in the following description and drawings to identify the same components, while similar reference numerals including an alphabetic extension are used to identify those components that have been modified.

[0083] Reference Figure 12 The sole structure 200b includes a midsole 202b configured to provide cushioning characteristics of the sole structure 200b, and an outsole 204 configured to provide a ground- engaging surface 30 of the article of footwear 10b. The midsole 202b is composite formed and includes a plurality of sub-components for providing localized cushioning and performance characteristics to the sole structure 200b. For example, the midsole 202b includes a foam element 206b and a cushioning device 208b that cooperate to define a bottom surface of the midsole 202b for attachment of the outsole 204. As described in greater detail below, the outsole 204 is attached to the bottom surface of the midsole 202b and forms the ground-engaging surface 30 of the article of footwear 10b. The foam element 206b, the cushioning device 208b, and the outsole 204 can be assembled and secured to one another using various bonding methods, for example, including adhesives and fusing.

[0084] As shown, Figure 12 The foam element 206b includes a recess 220b formed in the bottom surface 216. The recess 220b is defined by a medial surface 222b disposed between the top surface 214 and the bottom surface 216, and a peripheral wall 224b extending from the medial surface 222b to the bottom surface 216b. Accordingly, the depth D of the recess 220b is defined by the distance from the bottom surface 216 to the medial surface 222b, and the outer profile of the recess 220b is defined by the peripheral wall 224b. 220b The foam element 206b includes a recess 220b formed in the bottom surface 216. The recess 220b is defined by a medial surface 222b disposed between the top surface 214 and the bottom surface 216, and a peripheral wall 224b extending from the medial surface 222b to the bottom surface 216b. Accordingly, the depth D of the recess 220b is defined by the distance from the bottom surface 216 to the medial surface 222b, and the outer profile of the recess 220b is defined by the peripheral wall 224b.

[0085] The recess 220b extends along a length of the foam element 206b from a first end 226b in the forefoot region 12 to a second end 228b in the midfoot region 14. The recess 220b also includes a medial side 230b and a lateral side 232b formed on an opposite side of the recess 220b from the medial side 230b. The medial side 230b and the lateral side 232b extend from the first end 226b to the second end 228b, whereby the distance from the first end 226b to the second end 228b defines a length L of the recess 220b. 220b The distance from the medial side 230b to the lateral side 232b defines a width W of the recess 220b. 220b As shown, a longitudinal axis A of the recess 220b is defined by the length L of the recess 220b. Figure 13 220b ​extends from the first end 226b to the second end 228b and is centrally located between the medial side 230b and the lateral side 232b of the recess 220b.

[0086] Generally, the recess 220b is offset relative to the longitudinal axis A 10b laterally offset, whereby the longitudinal axis A 220b is spaced apart from and extends in the same direction as the longitudinal axis A10b of the footwear 10b. In other words, the medial side 230b is spaced apart from the peripheral side surface 218 a greater distance than the lateral side 232b is spaced apart from the peripheral side surface 218. In some examples, the medial side 230b of the recess 220b is formed in the interior region 28 of the sole structure 200b, while the lateral side 232b is formed in the peripheral region 26 of the sole structure 200b.

[0087] In particular examples, the recess 220b is offset toward the lateral side 24 of the sole structure 200b, whereby the lateral side 232b is formed proximate the peripheral side surface 218 along the lateral side 24, while the medial side 230b is spaced apart from the peripheral side surface 218 along the medial side 22. As shown, the portion of the peripheral wall 224b that defines the lateral side 232b of the recess 220b can only partially extend from the medial surface 222b to the bottom surface 216, whereby a terminal end 233b of the peripheral wall 224b defines an opening 234b that extends through the peripheral side surface 218 of the foam element 206b. Conversely, the portion of the peripheral wall 224b that defines the medial side 230b extends completely from the medial surface 222b to the bottom surface 216 to completely enclose the recess 220b along the medial side 22. In some examples, the lateral side 232b is formed in the peripheral region 26 along the lateral side 24, while the medial side 230b is formed in the interior region 28. In some examples, the medial side 230b of the recess 220b can be formed proximate the longitudinal axis A F of the footwear 10b along the medial side 22.

[0088] As Figure 13 shown, the bottom surface 216 of the foam element 206 extends along the recess 220b from the first end 226b of the recess 220b to the second end 228b of the recess 220b, from the medial side 230b of the recess 220b to the peripheral side surface 218. Accordingly, the sole structure 200b is configured to provide regional cushioning properties through the forefoot region 12 and the midfoot region 14, whereby the cushioning arrangement 208b defines the cushioning properties of the sole structure 200b in the lateral side 24 in the forefoot region 12 and the midfoot region 14, while the foam element 206b defines the cushioning properties of the sole structure 200b along the medial side 22 of the midfoot region 14 and the forefoot region 12.

[0089] As discussed in greater detail below, the peripheral wall 224b of the recess 220b is configured to mate with an outer peripheral profile of the cushioning arrangement 208b, such that the cushioning arrangement 208b substantially fills the recess 220b. As such, the profile of the peripheral wall 224b will correspond to the profile of the cushioning arrangement 208b. In Figure 12 In the example shown, the cushioning arrangement 208b is a monolithic structure that extends continuously from the first end 226b of the recess 220b to the second end 228b of the recess 220b. Here, the peripheral wall 224b defines one or more partitions 236 that extend from the inner side 230b to the outer side 232b for subdividing the recess 220b into a plurality of individual receptacles 238.

[0090] Referring to Figure 12 , the cushioning arrangement 208b includes a top surface 240b and a bottom surface 242b formed on an opposite side of the cushioning arrangement 208b from the top surface 240b, such that the distance from the top surface 240b to the bottom surface 242b defines a thickness T 208b of the cushioning arrangement 208b.

[0091] As Figure 13 shown, the thickness T 208b of the cushioning arrangement 208b is substantially similar to the depth D 220b of the recess 220b, such that when the bottom surface 242b of the cushioning arrangement 208b is engaged (i.e., in contact) with the medial surface 222b of the recess 220b, the top surface 240b of the cushioning arrangement 208b is flush with the bottom surface 216b of the foam element 206b. Accordingly, the bottom surface 216 of the foam element 206b and the bottom surface 242b of the cushioning arrangement 208b cooperate to define a substantially continuous, load-bearing bottom surface of the midsole 202b.

[0092] The cushioning arrangement 208b extends from a first end 246b to a second end 248b formed on an opposite end of the cushioning arrangement 208b from the first end 246b. The cushioning arrangement 208b also includes an inner side 250b and an outer side 252b formed on an opposite side of the cushioning arrangement 208b from the inner side 250b. The inner side 250b and the outer side 252b extend from the first end 246b to the second end 248b, whereby the distance from the first end 246b to the second end 248b defines a length L L208b of the cushioning arrangement 208b, and the distance from the inner side 250b to the outer side 252b defines a width W 208b of the cushioning arrangement 208b.

[0093] The length L 208b and the width W208b The length L 220b and the width W 220b of the recess 220b are substantially similar. Similarly, the contours of the first end 246b, the second end 248b, the medial side 250b, and the lateral side 252b of the cushioning arrangement 208b defined by the peripheral surface 244a correspond to the first end 226b, the second end 228b, the medial side 230b, and the lateral side 232b of the recess 220b. Thus, when the cushioning arrangement 208b is disposed within the recess 220b, the peripheral surface 244a of the cushioning arrangement 208b is received by, and contacts, the peripheral wall 224a of the recess 220b such that the cushioning arrangement 208b substantially fills the recess 220b. Thus, the cushioning arrangement 208b is inherently arranged in the same position as the recess 220b.

[0094] As discussed above, the portion of the peripheral wall 224b that forms the lateral side 232b of the recess 220b can extend partially from the medial surface 222b to the bottom surface 216, whereby the opening 234b extends from the peripheral side surface 218 to the recess 220b. Accordingly, the lateral side 252b of the cushioning arrangement 208b can be exposed through the opening 234b, as shown in FIG. 10. In some examples, the lateral side 252b of the cushioning arrangement 208b is recessed inwardly from the peripheral side surface 218. Alternatively, the lateral side 252b of the cushioning arrangement 208 can extend at least partially through the opening 234b, whereby the lateral side 252b of the cushioning arrangement 208b cooperates with the peripheral side surface 218 to form a substantially continuous outer surface of the sole structure 200b. Figure 11

[0095] As discussed above with respect to the recess 220b, the cushioning arrangement 208b can be formed as a fragmented structure including a plurality of bladders 254b positioned along the lateral side 24 of the sole structure 200 from the forefoot region 12 to the midfoot region 14. However, regardless of the composition of the cushioning arrangement 208b (i.e., unitary, fragmented), the properties described above with respect to the configuration and position of the cushioning arrangement 208 are maintained such that the cushioning arrangement 208b is offset from the longitudinal axis A 10b of the article of footwear 10b. In particular, the lateral side 252b of the cushioning arrangement 208b is proximate the lateral side 24 of the sole structure 200b, while the medial side 250b is disposed within the interior region 28 of the sole structure 200b.

[0096] When the cushioning arrangement 208b is formed as a fragmented structure, two or more bladders 254b can be positioned along the longitudinal axis A 208b ​The inner side 250b and the outer side 252b of the cushioning arrangement 208b are defined by respective inner and outer sides of each bladder 254b in a common manner from the first end 246b to the second end 248b. In the illustrated example, the cushioning arrangement 208b includes a pair of bladders 254b. A first one of the bladders 254b is disposed in the forefoot region 12 adjacent the first end 226b of the recess 220b, and a second one of the bladders 254b is disposed in the midfoot region 14 adjacent the second end 228b of the recess 220b.

[0097] As discussed above, the bladders 254b can be at least partially separated by the divider 236 extending from the intermediate surface 222b of the recess 220b, whereby each bladder 254b is received within one of the receptacles 238.

[0098] Referring to Figures 16-20 , there is provided an article of footwear 10c that includes an upper 100 and a sole structure 200c attached to the upper 100. To the extent that the structure and function of the components associated with the article of footwear 10 are substantially similar with respect to the article of footwear 10c, the same reference numerals are used in the following description and in the drawings to identify the same components, while similar reference numerals including an alphabetic extension are used to identify those components that have been modified.

[0099] Referring to Figure 17 , the sole structure 200c includes a midsole 202c configured to provide cushioning characteristics of the sole structure 200c, and an outsole 204 configured to provide a ground- engaging surface 30 of the article of footwear 10c. The midsole 202c is composite formed and includes a plurality of sub-components for providing localized cushioning and performance characteristics to the sole structure 200c. For example, the midsole 202c includes a foam element 206c and a cushioning arrangement 208b that cooperate to define a top surface of the midsole 202c. As described in greater detail below, the outsole 204 is attached to a bottom surface 216 of the midsole 202c and forms the ground-engaging surface 30 of the article of footwear 10c. The foam element 206c, the cushioning arrangement 208c, and the outsole 204 can be assembled and secured to one another using various bonding methods, for example, including adhesives and fusing.

[0100] As shown, Figure 17 the foam element 206c includes a recess 220c formed in the top surface 214. The recess 220c is defined by an intermediate surface 222c disposed between the top surface 214 and the bottom surface 216, and a peripheral wall 224c extending from the intermediate surface 222c to the top surface 214. Thus, a depth D of the recess 220c is defined by a distance from the top surface 214 to the intermediate surface 222c, and an outer profile of the recess 220b is defined by the peripheral wall 224c. 220c the foam element 206c includes a recess 220c formed in the top surface 214. The recess 220c is defined by an intermediate surface 222c disposed between the top surface 214 and the bottom surface 216, and a peripheral wall 224c extending from the intermediate surface 222c to the top surface 214. Thus, a depth D of the recess 220c is defined by a distance from the top surface 214 to the intermediate surface 222c, and an outer profile of the recess 220b is defined by the peripheral wall 224c.

[0101] The recess 220c extends along the length of the foam element 206c from a first end 226b in the forefoot region 12 to a second end 228b in the midfoot region 14. The recess 220c also includes an inner portion 230c and an outer portion 232c formed on the side of the recess 220c opposite to the inner portion 230c. The inner portion 230c and the outer portion 232c extend from the first end 226b to the second end 228b, such that the distance from the first end 226b to the second end 228b defines the length L of the recess 220c. 220c The distance from the inner side 230c to the outer side 232c defines the width W of the recess 220c. 220c .like Figure 18 As shown, the longitudinal axis A of the recess 220c 220c It extends from the first end 226b to the second end 228b and is centrally located between the inner side 230c and the outer side 232c of the recess 220c.

[0102] Typically, the recess 220c is relative to the longitudinal axis A of the footwear 10c. 10c Laterally offset, thus the longitudinal axis A of the recess 220c 220c With the longitudinal axis A of footwear 10c 10c They are spaced apart and extend in the same direction. In other words, the distance between the inner portion 230c and the peripheral side surface 218 is greater than the distance between the outer portion 232c and the peripheral side surface 218. In some examples, the inner portion 230c of the recess 220c is formed in the inner region 28 of the sole structure 200c, while the outer portion 232c is formed in the peripheral region 26 of the sole structure 200c.

[0103] In a particular example, the recess 220c is offset toward the outer side 24 of the sole structure 200c, whereby the outer side 232c is formed along the outer side 24 close to the peripheral side surface 218, while the inner side 230c is spaced apart from the peripheral side surface 218 on the inner side 22. As shown, a portion of the outer side 232c defining the recess 220c of the peripheral wall 224c may extend only partially from the intermediate surface 222c to the top surface 214, wherein the terminal end 233c of the peripheral wall 224c defines an opening 234c extending through the peripheral side surface 218 of the foam element 206c. Conversely, a portion of the inner side 230c defining the peripheral wall 224c extends fully from the intermediate surface 222c to the top surface 214 to completely surround the recess 220c along the inner side 22. In some examples, the outer side 232c is formed in the peripheral region 26 on the outer side 24, while the inner side 230c is formed in the inner region 28. In some examples, the inner portion 230c of the recess 220c can be formed close to the longitudinal axis A of the footwear 10. F .

[0104] likeFigure 18 As shown, the top surface 214 of the foam element 206c extends from the first end 226b of the recess 220c to the second end 228b of the recess 220c, and from the inner side 230c of the recess 220c to the peripheral side surface 218 along the recess 220c. Therefore, the sole structure 200c is configured to provide regional cushioning characteristics through the forefoot region 12 and the midfoot region 14, whereby the cushioning device 208b defines the cushioning characteristics of the sole structure 200c on the outer side 24 of the forefoot region 12 and the midfoot region 14, while the foam element 206c defines the cushioning characteristics of the sole structure 200c along the inner side 22 of the midfoot region 14 and the forefoot region 12.

[0105] As discussed in more detail below, the peripheral wall 224c of the recess 220c is configured to mate with the outer peripheral contour of the buffer arrangement 208b, such that the buffer arrangement 208b substantially fills the recess 220c. Therefore, the contour of the peripheral wall 224c will correspond to the contour of the buffer arrangement 208b. Figure 17 In the example shown, the buffer arrangement 208b is a segmented structure that extends continuously from the first end 226b of the recess 220c to the second end 228b of the recess 220c. Here, the peripheral wall 224c defines one or more dividers 236 that extend from the inner portion 230c to the outer portion 232c for subdividing the recess 220c into a plurality of individual receivers 238.

[0106] refer to Figure 17 The buffer arrangement 208b includes a top surface 240b and a bottom surface 242b formed on the side of the buffer arrangement 208b opposite to the top surface 240b, such that the distance from the top surface 240b to the bottom surface 242b defines the thickness T of the buffer arrangement 208b. 208b The outer peripheral surface 244a extends between the top surface 240b and the bottom surface 242b, and defines the outer peripheral profile of the buffer arrangement 208b.

[0107] like Figure 18 As shown, the thickness T of the buffer device 208b 208b The depth D is basically similar to that of recess 220b. 220b Thus, when the bottom surface 242b of the cushioning device 208b engages (i.e., contacts) the middle surface 222c of the recess 220c, the top surface 240b of the cushioning device 208b is flush with the top surface 214 of the foam element 206c. Therefore, the top surface 214 of the foam element 206c and the top surface 240b of the cushioning device 208b cooperate to define a substantially continuous load-bearing top surface of the insole 202c.

[0108] The cushioning device 208b extends from a first end 246b to a second end 248b formed at an opposite end of the cushioning device from the first end 246b. The cushioning device 208b also includes an inner side 250b and an outer side 252b formed at an opposite side of the cushioning device 208b from the inner side 250b. The inner side 250b and the outer side 252b extend from the first end 246b to the second end 248b, whereby the distance from the first end 246b to the second end 248b defines a length L of the cushioning device 208b 208b The distance from the inner side 250b to the outer side 252b defines a width W of the cushioning device 208b 208b .

[0109] The length L 208b and the width W 208b of the cushioning device 208b are substantially similar to the length L 220c and the width W 220c of the recess 220c. Similarly, the contours of the first end 246b, the second end 248b, the inner side 250b, and the outer side 252b of the cushioning device 208b defined by the peripheral surface 244a correspond to the first end 226b, the second end 228b, the inner side 230c, and the outer side 232c of the recess 220c. Accordingly, when the cushioning device 208b is disposed within the recess 220c, the outer peripheral surface 244a of the cushioning device 208b is received by and contacts the peripheral wall 224c of the recess 220c such that the cushioning device substantially fills the recess 220c. Thus, the cushioning device 208b is inherently arranged in the same position as the recess 220c, as discussed above.

[0110] As discussed above, the portion of the peripheral wall 224c forming the outer side 232c of the recess 220c can extend partially from the medial surface 222c to the bottom surface 214, whereby the opening 234c extends from the peripheral side surface 218 to the recess 220c. Accordingly, the outer side 252b of the cushioning arrangement 208b can be exposed through the opening 234c, as Figure 11 shown. In some examples, the outer side 252b of the cushioning device 208b is recessed inwardly from the peripheral side surface 218. Alternatively, the outer side 252b of the cushioning device 208 can extend at least partially through the opening 234c, whereby the outer side 252b of the cushioning device 208b cooperates with the peripheral side surface 218 to form a substantially continuous outer surface of the sole structure 200c.

[0111] As discussed above with respect to recess 220c, cushioning arrangement 208b can be formed as a fragmented structure including a plurality of individual bladders 254b positioned along the lateral side 24 of the sole structure from forefoot region 12 to midfoot region 14. However, regardless of the composition of cushioning arrangement 208b (i.e., integral, fragmented), the properties described above with respect to the construction and location of cushioning arrangement 208b are maintained such that cushioning arrangement 208b is laterally offset from the longitudinal axis A 10c of footwear 10c. In particular, the lateral portion 252b of cushioning arrangement 208b is proximate the lateral side 24 of sole structure 200c, while the medial portion 250b is disposed within the interior region 28 of sole structure 200c.

[0112] When cushioning arrangement 208b is formed as a fragmented structure, two or more bladders 254b can be aligned along the longitudinal axis A 208b from first end 246b to second end 248b, whereby the medial portion 250b and the lateral portion 252b of cushioning arrangement 208b are defined by respective medial and lateral portions of each bladder 254b in a collective manner. In the illustrated example, cushioning arrangement 208b includes a pair of bladders 254b. A first of the bladders 254b is disposed in forefoot region 12 proximate first end 226b of recess 220c, and a second of the bladders 254b is disposed in midfoot region 14 proximate second end 228b of recess 220c. As discussed above, the bladders 254b can be at least partially separated by divider 236 extending from the medial surface 222c of recess 220c, whereby each bladder 254b is received within one of the receptacles 238.

[0113] Regardless of whether cushioning arrangement 208, 208b is formed as an integral structure (208) or a fragmented structure (208b), the bladders 254, 254b are constructed in a similar manner. For example, each bladder 254, 254b includes a first upper barrier layer 256 and a second lower barrier layer 257 that can be joined to one another at discrete locations to define a chamber 258, 258b and a peripheral seam 260, 260b. In some embodiments, the upper barrier layer 256 and the lower barrier layer 257 cooperate to define the geometry (e.g., thickness, width, and length) of the chamber 258a. For example, the peripheral seam 260, 260b bounds the chamber 258a to seal the fluid (e.g., air) within the chamber 258, 258b. Accordingly, the chamber 258, 258b is associated with a region of the bladder 254, 254b in which the interior surfaces of the upper barrier layer 256 and the lower barrier layer 257 are not joined together and, thus, are separated from one another.

[0114] The upper barrier layer 256 and the lower barrier layer 257 are molded to correspond to the desired profile of the recesses 220a-220c. In some embodiments, the upper barrier layer 256 and the lower barrier layer 257 are formed from respective mold portions, each mold portion defining various surfaces for forming recesses and pinched surfaces that correspond to the locations where the lower barrier layer 257 and the upper barrier layer 256 are joined and bonded together to form the perimeter seams 260, 260b. In some embodiments, the bond joins the upper barrier layer 256 and the lower barrier layer 257 to form the perimeter seams 260, 260b. In other embodiments, the upper barrier layer 256 and the lower barrier layer 257 are joined by thermal bonding to form the perimeter seams 260, 260b. In some instances, one or both of the upper barrier layer 256 and the lower barrier layer 257 are heated to a temperature that facilitates shaping and melting. In some instances, the upper barrier layer 256 and the lower barrier layer 257 are heated prior to being placed between their respective molds. In other instances, the molds can be heated to elevate the temperature of the upper barrier layer 256 and the lower barrier layer 257. In some embodiments, the molding process for forming the chambers 258, 258b incorporates a vacuum port within the mold portions to remove air such that the upper barrier layer 256 and the lower barrier layer 257 are drawn into contact with the surfaces of the respective mold portions. In other embodiments, a fluid, such as air, can be injected into the area between the upper barrier layer 256 and the lower barrier layer 257 such that the increased pressure causes the upper barrier layer 256 and the lower barrier layer 257 to engage the surfaces of their respective mold portions.

[0115] As used herein, the term "barrier layer" (e.g., barrier layers 256, 257) encompasses both single-layer films and multi-layer films. In some embodiments, one or both of the barrier layers 256, 257 are made from a single-layer film (single layer) (e.g., thermoformed or blow molded). In other embodiments, one or both of the barrier layers 256, 257 are made from a multi-layer film (multiple sub-layers) (e.g., thermoformed or blow molded). In either aspect, each layer or sub-layer can have a film thickness ranging from about 0.2 micrometers to about 1 millimeter. In other embodiments, the film thickness of each layer or sub-layer can range from about 0.5 micrometers to about 500 micrometers. In yet other embodiments, the film thickness of each layer or sub-layer can range from about 1 micrometer to about 100 micrometers.

[0116] One or both of the barrier layers 256, 257 can independently be transparent, translucent, and / or opaque. As used herein, the term "transparent" with respect to a barrier layer and / or a chamber means that light passes through the barrier layer in substantially straight lines and an observer can see through the barrier layer. In contrast, for an opaque barrier layer, light does not pass through the barrier layer and nothing can be clearly seen through the barrier layer. A translucent barrier layer is intermediate between a transparent barrier layer and an opaque barrier layer in that light passes through the translucent layer but some of the light is scattered so that a viewer cannot clearly see through the layer.

[0117] The barrier layers 256, 257 can each be made from an elastomeric material including one or more thermoplastic polymers and / or one or more cross-linkable polymers. In an aspect, the elastomeric material can include one or more thermoplastic elastomeric materials, such as one or more thermoplastic polyurethane (TPU) copolymers, one or more ethylene-vinyl alcohol (EVOH) copolymers, and the like.

[0118] As used herein, "polyurethane" refers to a copolymer (including an oligomer) containing urethane groups (-N(C=0)0-). In addition to the urethane groups, these polyurethanes can contain other groups, such as ester, ether, urea, allophanate, biuret, carbodiimide, oxazolidine, isocyanurate, uretdione, carbonate, and the like. In an aspect, one or more of the polyurethanes can be prepared by polymerizing one or more isocyanates with one or more polyols to produce a copolymer chain having (-N(C=0)0-) linkages.

[0119] Examples of suitable isocyanates for preparing the polyurethane copolymer chain include diisocyanates, such as aromatic diisocyanates, aliphatic diisocyanates, and combinations thereof. Examples of suitable aromatic diisocyanates include toluene diisocyanate (TDI), an adduct of TDI with trimethylolpropane (TMP), methylene diphenyl diisocyanate (MDI), xylene diisocyanate (XDI), tetramethylxylylene diisocyanate (TMXDI), hydrogenated xylene diisocyanate (HXDI), naphthalene 1,5-diisocyanate (NDI), 1,5-tetrahydronaphthalene diisocyanate, p-phenylene diisocyanate (PPDI), 3,3'-dimethyldiphenyl 1-4,4'-diisocyanate (DDDI), 4,4'-dibenzyl diisocyanate (DBDI), 4-chloro-1,3-phenylene diisocyanate, and combinations thereof. In some embodiments, the copolymer chain is substantially free of aromatic groups.

[0120] In certain aspects, the polyurethane polymer chain is prepared from a diisocyanate including HMDI, TDI, MDI, H12 aliphatic compound, and combinations thereof. In one aspect, the thermoplastic TPU can include a polyester-based TPU, a polyether-based TPU, a polycaprolactone-based TPU, a polycarbonate-based TPU, a polysiloxane-based TPU, or combinations thereof.

[0121] In another aspect, the polymer layer can be formed from one or more of the following: EVOH copolymers, polyvinyl chloride, polyvinylidene polymers and copolymers (e.g., polyvinylidene chloride), polyamides (e.g., amorphous polyamide), amide-based copolymers, acrylonitrile polymers (e.g., acrylonitrile-methyl acrylate copolymer), polyethylene terephthalate, polyetherimide, polyacrylimide, and other known polymeric materials having a relatively low gas transmission rate. Blends of these materials as well as blends with the TPU copolymers described herein and optionally including combinations of polyimide and crystalline polymers are also suitable.

[0122] The barrier layers 256, 257 can include two or more sub-layers (multi-layer films), such as shown in U.S. Patent No. 5,713,141 to Mitchell et al. and U.S. Patent No. 5,952,065 to Mitchell et al., the disclosures of which are incorporated by reference in their entirety. In embodiments where the barrier layers 256, 257 include two or more sub-layers, examples of suitable multi-layer films include microlayer films, such as those disclosed in U.S. Patent No. 6,582,786 to Bonk et al., which is incorporated by reference in its entirety. In other embodiments, the barrier layers 256, 257 can each independently include alternating sub-layers of one or more TPU copolymer materials and one or more EVOH copolymer materials, where the total number of sub-layers in each barrier layer 256 includes at least four (4) sub-layers, at least ten (10) sub-layers, at least twenty (20) sub-layers, at least forty (40) sub-layers, and / or at least sixty (60) sub-layers.

[0123] The bladder 254, 254b can be made from the barrier layer 256, 257 using any suitable technique, such as thermoforming (e.g., vacuum thermoforming), blow molding, extrusion, injection molding, vacuum molding, rotational molding, transfer molding, compression molding, heat sealing, casting, low pressure casting, rotational casting, reaction injection molding, radio frequency (RF) welding, and the like. In one aspect, the barrier layer 256, 257 can be manufactured by co-extrusion followed by vacuum thermoforming to manufacture an inflatable bladder 254, which can optionally include one or more valves (e.g., one-way valves) that allow the chamber 258 to be filled with a fluid (e.g., a gas).

[0124] As shown, the space formed between the opposing inner surfaces of the upper barrier layer 256 and the lower barrier layer 257 defines an interior void 262 of the chamber 258, 258b. The interior void 262 of the chamber 258, 258b can house a tensile element 264, 264b therein. Each tensile element 264, 264b can include a series of tensile strands 266 extending between an upper tensile sheet 268 and a lower tensile sheet 269. The upper tensile sheet 268 can be attached to the upper barrier layer 256, while the lower tensile sheet 269 can be attached to the lower barrier layer 257. In this manner, when the chamber 258, 258b receives pressurized fluid, the tensile strands 266 of the tensile element 264, 264b are placed in tension. Because the upper tensile sheet 268 is attached to the upper barrier layer 256 and the lower tensile sheet 269 is attached to the lower barrier layer 257, the tensile strands 266 maintain the desired shape of the cushioning device 208, 208b when pressurized fluid is injected into the interior void 262. For example, in the illustrated embodiment, the tensile elements 264, 264b maintain the substantially planar top surface 240, 240b and bottom surface 242, 242b of the cushioning device 208, 208b.

[0125] The chamber 258, 258b desirably has a low gas transmission rate to maintain its retained gas pressure. In some embodiments, the chamber 258, 258b has a nitrogen gas transmission rate that is at least about ten (10) times lower than that of a butyl rubber layer of substantially the same size. In an aspect, for an average film thickness of 500 micrometers (based on the thickness of the barrier layer 256), the chamber 258, 258b has a nitrogen gas transmission rate of 15 cubic centimeters per square meter-atmosphere-day (cm3 / m2-atm-day) or less. In other aspects, the transmission rate is 10 cm3 / m2-atm-day or less, 5 cm3 / m2-atm-day or less, or 1 cm3 / m2-atm-day or less.

[0126] The chamber 258, 258b can be provided in a fluid-filled state (e.g., as provided in the footwear 10) or an unfilled state. The chamber 258, 258b can be filled to include any suitable fluid, such as a gas or a liquid. The chamber 258, 258b can alternatively include other media, such as granules, beads, ground recycled material, etc. (e.g., foam beads and / or rubber beads). As noted above, where multiple bladders 254b form the cushioning device 208b, the interior void 262 of each bladder 254b can be filled or pressurized differently from one another.

[0127] In one aspect, the gas can include air, nitrogen (N2), or any other suitable gas. The fluid provided to the chamber 258, 258b can cause the chamber 258, 258b to be pressurized. In some examples, the internal void 262 is at a pressure ranging from 15 psi (pounds per square inch) to 25 psi. In other examples, the internal void 262 can have a pressure ranging from 20 psi to 25 psi. In some examples, the internal void 262 has a pressure of 20 psi. In other examples, the internal void 262 has a pressure of 25 psi. Alternatively, the fluid provided to the chamber 258, 258b can be at atmospheric pressure, such that the chamber 258, 258b is not pressurized, but rather contains only a volume of fluid at atmospheric pressure.

[0128] As described above, the foam elements 206-206c are formed of an elastomeric polymeric material, such as a foam or rubber, to impart cushioning, responsiveness, and energy distribution characteristics to the wearer's foot. The foam elements 206-206c can be formed of a single, unitary elastomeric polymeric material, or can be formed of a plurality of elements, each formed of one or more elastomeric polymeric materials. For example, the plurality of elements can be secured to one another using a fusing process, using an adhesive, or by suspending the elements in a different elastomeric polymeric material. Alternatively, the plurality of elements can not be secured to one another, but can remain independent while contained in one or more structures forming a cushioning element. In this alternative example, the plurality of independent cushioning elements can be a plurality of foam particles, and can be contained in a bladder or shell-like structure. As such, the foam elements 206-206c can be formed of a plurality of foam particles contained within a relatively translucent bladder or shell formed of a membrane, such as a barrier membrane.

[0129] Exemplary elastomeric polymeric materials for the foam elements 206-206c can include those based on foaming or molding one or more polymers, such as one or more elastomers (e.g., thermoplastic elastomers (TPEs)). The one or more polymers can include aliphatic polymers, aromatic polymers, or a mixture of the two; and can include homopolymers, copolymers (including terpolymers), or a mixture of the two.

[0130] In some aspects, the one or more polymers can include an olefin homopolymer, an olefin copolymer, or a blend thereof. Examples of olefin polymers include polyethylene, polypropylene, and combinations thereof. In other aspects, the one or more polymers can include one or more ethylene copolymers, such as an ethylene-vinyl acetate (EVA) copolymer, an EVOH copolymer, an ethylene-ethyl acrylate copolymer, an ethylene-unsaturated monofatty acid copolymer, and combinations thereof.

[0131] In other aspects, the one or more polymers can include one or more polyacrylates, such as polyacrylic acid, esters of polyacrylic acid, polyacrylonitrile, polyacrylate, polymethyl acrylate, polyethyl acrylate, polybutyl acrylate, polymethyl methacrylate, and polyvinyl acetate; including derivatives thereof, copolymers thereof, and any combination thereof.

[0132] In other aspects, the one or more polymers can include one or more ionomeric polymers. In these aspects, the ionomeric polymers can include polymers having carboxylic acid functionality, sulfonic acid functionality, salts thereof (e.g., sodium, magnesium, potassium, etc.), and / or anhydrides thereof. For example, the one or more ionomers can include one or more fatty acid modified ionomers, polystyrene sulfonate, ethylene-methacrylic acid copolymers, and combinations thereof.

[0133] In other aspects, the one or more polymers can include one or more styrene block copolymers, such as acrylonitrile butadiene styrene block copolymers, styrene propylene acrylonitrile block copolymers, styrene ethylene butylene styrene block copolymers, styrene ethylene butadiene styrene block copolymers, styrene ethylene propylene acrylonitrile styrene block copolymers, styrene butadiene styrene block copolymers, and combinations thereof.

[0134] In other aspects, the one or more polymers can include one or more polyamide copolymers (e.g., polyamide-polyether copolymers) and / or one or more polyurethanes (e.g., cross-linked polyurethanes and / or thermoplastic polyurethanes). Alternatively, the one or more polymers can include one or more natural and / or synthetic rubbers, such as butadiene and isoprene.

[0135] When the elastomeric polymeric material is a foamed polymeric material, the foamed material can be foamed using a physical blowing agent that phase changes into a gas based on a change in temperature and / or pressure or a chemical blowing agent that forms a gas when heated above an activation temperature. For example, the chemical blowing agent can be an azo compound, such as azodicarbonamide, sodium bicarbonate, and / or isocyanate.

[0136] In some embodiments, the foamed polymeric material can be a cross-linked foamed material. In these embodiments, a peroxide-based cross-linking agent, such as dicumyl peroxide, can be used. Additionally, the foamed polymeric material can include one or more fillers, such as pigments, modified or natural clays, modified or unmodified synthetic clays, talc, glass fibers, powdered glass, modified or natural silica, calcium carbonate, mica, paper, wood flour, and the like.

[0137] The elastomeric polymeric material can be formed using a molding process. In one example, when the elastomeric polymeric material is a molded elastomer, uncured elastomer (e.g., rubber) can be mixed with optional fillers and a curing package, such as a sulfur-based or peroxide-based curing package, in a Banbury mixer, rolled, shaped, placed in a mold, and vulcanized.

[0138] In another example, when the elastomeric polymeric material is a foam material, the material can be foamed during a molding process, such as an injection molding process. The thermoplastic polymeric material can be melted in a barrel of an injection molding system and mixed with a physical or chemical blowing agent and optionally a crosslinking agent, and then injected into a mold under conditions that activate the blowing agent, thereby forming a molded foam.

[0139] Optionally, when the elastomeric polymeric material is a foam material, the foam material can be a compression molded foam. Compression molding can be used to change the physical properties of the foam (e.g., density, hardness, and / or durometer), or to change the physical appearance of the foam (e.g., to fuse two or more pieces of foam, to shape the foam, etc.), or both.

[0140] The compression molding process desirably begins by forming one or more foam preforms, such as by injection molding and foaming the polymeric material, by forming foam granules or beads, by cutting a foam sheet stock, etc. The compression molded foam can then be manufactured by placing one or more preforms formed from one or more foam polymeric materials in a compression mold, and applying sufficient pressure to the one or more preforms to compress the one or more preforms in a closed mold. Once the mold is closed, sufficient heat and / or pressure is applied to the one or more preforms in the closed mold for a sufficient time to change the one or more preforms by forming a skin on the outer surface of the compression molded foam, to fuse individual foam granules to one another, to permanently increase the density of the one or more foams, or any combination thereof. After the heat and / or pressure is applied, the mold is opened, and the molded foam article is removed from the mold.

[0141] The following clauses provide exemplary constructions for sole structures of the above-described articles of footwear.

[0142] Clause 1. A sole structure for an article of footwear, comprising a foam element having a top surface and a bottom surface formed on an opposite side of the foam element from the top surface. The foam element includes a recess (i) formed in the bottom surface, (ii) extending from a first end in a forefoot region of the sole structure to a second end in a midfoot region of the sole structure, (iii) having a first edge extending between the first end and the second end and disposed proximate a peripheral region of the sole structure, and (iv) having a second edge extending between the first end and the second end and disposed in an interior region of the sole structure. A cushioning device is disposed within the recess and includes an outer surface that is substantially flush with the bottom surface of the foam element.

[0143] Clause 2. The sole structure of Clause 1, wherein the cushioning device is a bladder that is matingly received by the recess.

[0144] Clause 3. The sole structure of Clause 2, wherein the bladder includes a tensile member disposed therein.

[0145] Clause 4. The sole structure of Clause 1, wherein the cushioning device includes a bladder that extends continuously from the first end of the recess to the second end of the recess.

[0146] Clause 5. The sole structure of Clause 4, wherein the first end of the recess is curved and the second end of the recess is substantially straight.

[0147] Clause 6. The sole structure of Clause 1, wherein the cushioning device includes a first bladder disposed proximate the first end of the recess and a second bladder disposed proximate the second end of the recess.

[0148] Clause 7. The sole structure of Clause 1, wherein the first edge extends through a peripheral side surface of the foam element to form an opening in the peripheral side surface.

[0149] Clause 8. The sole structure of Clause 7, wherein the cushioning device is exposed through the opening.

[0150] Clause 9. The sole structure of Clause 1, wherein the first edge is located on a lateral side of the sole structure.

[0151] Clause 10. The sole structure of Clause 1, wherein the cushioning device substantially fills the recess.

[0152] Clause 11. A sole structure for an article of footwear, the sole structure comprising a foam element extending along a first longitudinal axis from a forward end of the sole structure to a rearward end of the sole structure and including a bottom surface having a recess. The recess (i) extends from a first end in a forefoot region of the sole structure to a second end in a midfoot region of the sole structure and (ii) extends along a second longitudinal axis that is laterally offset from the first longitudinal axis toward a lateral side of the sole structure. A cushioning device is disposed within and substantially fills the recess, an outer surface of the cushioning device being substantially flush with the bottom surface of the foam element.

[0153] Clause 12. The sole structure of Clause 11, wherein the cushioning device is a bladder that is matingly received by the recess.

[0154] Clause 13. The sole structure of Clause 12, wherein the bladder includes a tensile member disposed therein.

[0155] Clause 14. The sole structure of Clause 12, wherein the cushioning device includes a bladder that extends continuously from the first end of the recess to the second end of the recess.

[0156] Clause 15. The sole structure of Clause 14, wherein the first end of the recess is curved and the second end of the recess is substantially straight.

[0157] Clause 16. The sole structure of Clause 11, wherein the cushioning device includes a first bladder disposed adjacent the first end of the recess and a second bladder disposed adjacent the second end of the recess.

[0158] Clause 17. The sole structure of Clause 11, wherein an outer edge of the recess extends through a peripheral side surface of the foam element to form an opening in the peripheral side surface.

[0159] Clause 18. The sole structure of Clause 17, wherein the cushioning device is exposed through the opening.

[0160] Clause 19. The sole structure of Clause 18, wherein the opening is formed in a lateral side of the sole structure.

[0161] Clause 20. The sole structure of Clause 11, wherein the cushioning device substantially fills the recess.

[0162] The foregoing description has been provided for purposes of illustrating and describing principles of various embodiments and is not intended to be limiting. Individual elements or features of a particular structure are generally not limited to the structure alone, but rather can be interchanged with other structures that serve the same purpose, and act in similar ways. Individual elements or features of a particular embodiment can also be varied in a wide range of combinations to adopt the ideas disclosed in this disclosure in other structures and embodiments.

Claims

1. A sole structure for an article of footwear, the sole structure comprising: a foam element having a top surface, a bottom surface formed on a side of the foam element opposite the top surface, and a peripheral side surface extending from the top surface to the bottom surface, the foam element including a recess (i) formed in one of the top surface or the bottom surface, (ii) extending from a first end in a forefoot region of the sole structure to a second end in a midfoot region of the sole structure, (iii) having a first edge extending between the first end and the second end and disposed proximate a peripheral region of the sole structure, and (iv) having a second edge extending between the first end and the second end and disposed in an interior region of the sole structure; and a cushioning device disposed within the recess and including an outer surface substantially flush with the one of the top surface or the bottom surface of the foam element; wherein the first edge is located on a lateral side of the sole structure and terminates at a distal end spaced apart from the one of the top surface or the bottom surface to form an opening through the peripheral region through which the cushioning device is exposed; an outer profile of the recess is defined by a peripheral wall that defines a partition extending from a medial side portion to a lateral side portion partitioning the recess into a first recess and a second recess, the cushioning device includes a first bladder disposed in the first recess proximate the first end and a second bladder disposed in the second recess proximate the second end.

2. The sole structure of Claim 1, wherein, the first bladder and the second bladder are fluid-filled bladders.

3. The sole structure of Claim 2, wherein, the fluid-filled bladders include a tensile member disposed therein.

4. The sole structure of claim 1, wherein, the first bladder is aligned with the second bladder along a first axis.

5. The sole structure of claim 4, wherein, the first axis is spaced apart from and extends in the same direction as a central longitudinal axis of the sole structure.

6. The sole structure of claim 1, wherein, the first bladder is disposed in the forefoot region of the sole structure.

7. An article of footwear comprising the sole structure of claim 1.

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