Outsoles for articles of footwear

Abstract

An outsole for an article of footwear can include ribs and nubs to provide traction. Each rib is spaced apart from an adjacent rib and includes a first side segment disposed on a lateral side portion, a second side segment disposed on a medial side portion, a first angled segment, and a second angled segment. The first angled segment extends from first side segment, the second angled segment extends from the second side segment, and the first and second angled segments form a peak directed towards an anterior end of the outsole. Each nub is disposed between two adjacent ribs of the plurality of ribs. The nubs include side nubs and intermediate nubs. The side nubs are disposed between pairs of side segments of the ribs. The intermediate nubs are disposed between pairs of the angled segments of the ribs.

Description

CROSS REFERENCE TO RELATED APPLICATION

[0001] This application claims the benefit of U.S. Provisional Application No. 63 / 756,927, filed February 11, 2025. The prior application is incorporated herein by reference in its entirety.FIELD

[0002] This disclosure relates generally to articles of footwear and more particularly to outsoles for articles of footwear.BACKGROUND

[0003] An article of footwear (also referred to herein as “article”) typically includes two main components: a sole structure and an upper. The sole structure is configured for supporting the wearer’s foot and providing cushioning between the wearer’s foot and the ground. The sole structure may include an outsole that is adapted to contact the ground. The upper is coupled to the sole structure and is configured for securing the wearer’s foot to the sole structure.BRIEF DESCRIPTION OF THE DRAWINGS

[0004] FIG. 1 is a perspective view of an exemplary article of footwear.

[0005] FIG. 2 is a lateral side view of the article of footwear.

[0006] FIG. 3 is a medial side view of the article of footwear.

[0007] FIG. 4 is a bottom plan view of the article of footwear.

[0008] FIG. 5 is a detail view of a forefoot region of an outsole of the article of footwear.

[0009] FIG. 6 is a lateral side view of the outsole.

[0010] FIG. 7 is another detail view of a forefoot region of an outsole.

[0011] FIG. 8 is another detail view of a forefoot region of an outsole.

[0012] FIG. 9 is a perspective view of the article of footwear in use, as worn by a basketball player performing a lateral cut.

[0013] FIG. 10 is a perspective view of the article of footwear in use, as worn by a basketball player performing a jump stop.DETAILED DESCRIPTIONGeneral Considerations

[0014] The systems and methods described herein, and individual components thereof, should not be construed as being limited to the particular uses or systems described herein in any way. Instead, this disclosure is directed toward all novel and non-obvious features and aspects of the various disclosed examples, alone and in various combinations and subcombinations with one another. For example, any features or aspects of the disclosed examples can be used in various combinations and subcombinations with one another, as will be recognized by an ordinarily skilled artisan in the relevant field(s) in view of the information disclosed herein. In addition, the disclosed systems, methods, and components thereof are not limited to any specific aspect or feature or combinations thereof, nor do the disclosed things and methods require that any one or more specific advantages be present or problems be solved.

[0015] As used in this application the singular forms “a,”“an,” and “the” include the plural forms unless the context clearly dictates otherwise. Additionally, the term “includes” means “comprises.” Further, the term “coupled” or “secured” encompasses mechanical and chemical couplings, as well as other practical ways of coupling or linking items together, and does not exclude the presence of intermediate elements between the coupled items unless otherwise indicated, such as by referring to elements, or surfaces thereof, being “directly” coupled or secured. Furthermore, as used herein, the term “and / or” means any one item or combination of items in the phrase.

[0016] As used herein, “e.g.” means “for example” and “i.e.” means “that is.”

[0017] As used herein, the term “exemplary” means serving as a non-limiting example, instance, or illustration. As used herein, the terms “e.g.,” and “for example,” introduce a list of one or more non-limiting examples, instances, implementations, and / or illustrations.

[0018] As used herein, the directional terms (e.g., “upper” and “lower”) generally correspond to the orientation of an article of footwear or sole assembly as it is configured to be worn by a wearer. For example, an “upwardly-facing surface” and / or an “upper surface” of a sole assembly refers to the surface oriented in the “superior” anatomical direction (i.e., toward the head of a wearer) when the article of footwear is being worn by the wearer. Similarly, the directional terms “downwardly” and / or “lower” refer to the anatomical direction “inferior” (i.e., toward the ground and away from the head of the wearer). “Front” means “anterior” (e.g., towards the toes), and “rear” means “posterior” (e.g., towards the heel). “Medial” means “toward the midline of the body,” and “lateral” means “away from the midline of the body.”“Longitudinal axis” refers to a centerline of the article from the heel to toe. Similarly, a “longitudinal length” refers to a length of the article along the longitudinal axis and a “longitudinal direction” refers to a direction along the longitudinal axis.

[0019] As used herein, the term “sole structure” refers to any combination of materials that provides support for a wearer's foot and bears the surface that is in direct contact with the ground or playing surface, such as, for example, a single sole; a combination of an outsole and an inner sole; a combination of an outsole, a midsole, and an inner sole; and a combination of an outer covering, an outsole, a midsole and an inner sole.

[0020] As used herein, the terms “attached” and “coupled” generally mean physically connected or linked, which includes items that are directly attached / coupled and items that are attached / coupled with intermediate elements between the attached / coupled items, unless specifically stated to the contrary.

[0021] As used herein, the terms “fixedly attached” and “fixedly coupled” refer to two components joined in a manner such that the components may not be readily separated from one another without destroying and / or damaging one or both components. Exemplary modalities of fixed attachment may include joining with permanent adhesive, stitches, welding or other thermal bonding, and / or other joining techniques. In addition, two components may be “fixedly attached” or “fixedly coupled” by virtue of being integrally formed, for example, in a molding process. In contrast, the terms “temporarily attached,”“temporarily coupled,” or “temporarily fixed,” refer to two components joined in a manner such that the components can be readily separated from one another to return to their separate, discrete forms without destroying and / or damaging either component. Exemplary modalities of temporary attachment may include removable stitches or other temporary joining techniques.

[0022] As used herein, the terms “articles of footwear” or “articles” mean any type of footwear, including, for example, basketball shoes, volleyball shoes, tennis shoes, running shoes, soccer shoes, football shoes, rugby shoes, baseball shoes, sneakers, hiking boots, sandals, socks, etc.

[0023] As used herein, the term “traction surface” refers to a surface that includes one or more traction elements that are configured to provide increased traction between the portion of the article of footwear on which the traction surface is disposed and a ground surface (e.g., the ground). For example, an outsole of an article of footwear can comprise a traction surface configured to increase traction between the article of footwear and the ground surface. In some instances, a traction surface may be in contact (e.g., fully or partially) with the ground surface when a wearer is performing one or more types of movement (e.g., lateral movement) and may not be in contact with the ground surface when the wearer is performing one or more other types of movement (e.g., forward movement). As used herein, a “traction element” or “traction elements” refer to elements disposed on a traction surface such as projections, ribs, nubs, grooves, siping, and / or are otherwise textured relative to a relatively smooth or untextured portion of the traction surface. A “non-traction surface” may refer to a surface that does not include any traction elements.

[0024] Although the figures may illustrate an article of footwear intended for use on only one foot (e.g., a right foot) of a wearer. One skilled in the art and having the benefit of this disclosure will recognize that a corresponding article of footwear for the other foot (e.g., a left foot) would be a mirror image of the right article of footwear.

[0025] Although the figures and description may illustrate an article of footwear intended for a particular use (e.g., basketball), the article of footwear can be used for various other uses (e.g., volleyball, tennis, etc.).

[0026] Unless explained otherwise, all technical and scientific terms used herein have the same meaning as commonly understood to one of ordinary skill in the art to which this disclosure belongs. Although methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present disclosure, suitable methods and materials are described below. The materials, methods, and examples are illustrative only and not intended to be limiting. Other features of the disclosure are apparent from the detailed description, claims, abstract, and drawings.The Disclosed Technology

[0027] An article of footwear typically includes two main components: a sole structure and an upper. The sole structure is configured for supporting the wearer’s foot and providing cushioning between the wearer’s foot and the ground (e.g., the surface on which they are moving, walking, running, etc.). The upper is coupled to the sole structure and forms a foot-receiving cavity. The upper is configured for securing the wearer’s foot to the sole structure and / or can protect the wearer’s foot.

[0028] In use, a wearer’s foot may move in different directions and change orientation relative to the ground, thereby changing which surfaces of the article of footwear have contact with the ground during use. For example, the sole structure may comprise an outsole that has an inferior side portion, lateral side portion, medial side portion, and an intermediate portion. The inferior side portion can extend between the lateral side portion, the intermediate portion, and the medial side portion and can be considered a main, ground-contacting surface (e.g., the “bottom” surface of the outsole which has contact with the ground when the wearer is standing upright with their toes facing forward and heel facing backward).

[0029] The inferior side portion of the outsole may have one or more traction surfaces with one or more traction elements that provide increased traction between the article of footwear and the ground. As a result, while moving across the ground, the wearer may be less likely to slip. For athletes, these traction surfaces may provide enhanced traction while moving quickly across the ground, and / or during frequent changes in foot orientation and / or direction of movement. In one example, an athlete (such as a basketball player) may move (e.g., “cut”) in a lateral or medial direction, as shown, for example, in FIG. 9. Side-to-side directional changes can exert relatively high forces on the medial side portion and / or the lateral side portions of the outsole (i.e., depending on the direction of motion). In another example, an athlete (such as a basketball player) may be moving forward (e.g., running) and then abruptly stop (e.g., “jump stop”), as shown, for example, in FIG. 10. Abrupt stops can exert relatively high forces on the intermediate portion of the outsole, particularly the forefoot region. Accordingly, the traction surfaces of the medial side portion, lateral side portion, and / or intermediate portion of the outsole can be configured to improve the wearer’s ability to perform specific movements and performance.

[0030] Disclosed herein are articles of footwear that have an outsole with medial and lateral side portions and intermediate portions configured with specific traction elements for improving the wearer’s ability to change direction quickly. The disclosed articles of footwear and outsoles are primarily described in connection with basketball shoes. The disclosed articles of footwear can be used with and / or adapted for use in other activities with frequent direction changes on a relatively smooth and / or hard surface. Exemplary alternative activities include volleyball, tennis, futsal, floor hockey, etc.

[0031] In some examples, an article of footwear comprises an outsole comprising a forefoot region comprises a lateral side portion, a medial side portion, an intermediate portion, a plurality of ribs, and a plurality of nubs.

[0032] In some examples, the intermediate portion is disposed between the lateral side portion and the medial side portion.

[0033] In some examples, the plurality of ribs extends from the lateral side portion, across the intermediate portion, and to the medial side portion.

[0034] In some examples, each rib of the plurality of ribs is spaced apart from an adjacent rib of the plurality of ribs and comprises a first side segment disposed on the lateral side portion, a second side segment disposed on the medial side portion, a first angled segment, and a second angled segment.

[0035] In some examples, the first angled segment extends from first side segment, the second angled segment extends from the second side segment, and the first angled segment and the second angled segment form a peak directed towards an anterior end of the outsole.

[0036] In some examples, each nub of the plurality of nubs is disposed between two adjacent ribs of the plurality of ribs.

[0037] In some examples, the plurality of nubs comprises side nubs and intermediate nubs.

[0038] in some examples, the side nubs are disposed between pairs of first side segments of the plurality of ribs or between pairs of second side segments of the plurality of ribs, and the intermediate nubs are disposed between pairs of the angled segments of the plurality of ribs.

[0039] In some examples, one or more of the intermediate nubs is longer than the side nubs.

[0040] Additional examples of the disclosed technology are described below with reference to the accompanying drawings.Examples of the Disclosed Technology

[0041] FIGS. 1-3 show an article of footwear 100, according to one example. The article of footwear 100 comprises two main components: a sole structure 102 and an upper 104. The upper 104 is coupled to the sole structure 102. The sole structure 102 includes an outsole 106 and a midsole 108. As further described below in connection with FIGS. 4-8, the outsole 106 can be configured with a plurality of traction surfaces and can be configured to cover and / or protect at least a portion of the midsole 108 and / or the upper 104. The midsole 108 can be disposed between the upper 104 and the outsole 106 and can be configured to provide cushioning. The upper 104 can be coupled to the midsole (e.g., at a strobel). As discussed further herein, certain portions of the outsole 106, such as a medial side portion, a lateral side portion, and an intermediate portion, may include one or more traction surfaces configured to provide improved traction when a wearer is changing directions quickly, accelerating, and / or decelerating.

[0042] FIG. 1 depicts a perspective view of a lateral side of the article of footwear 100, FIG. 2 depicts a lateral side view of the article of footwear 100, and FIG. 3 depicts a medial side view of the article of footwear 100. FIGS. 2-4 include reference axes 110 having an x-axis, y-axis, and z-axis. As referred to herein, a superior-inferior direction is arranged along the z-axis, an anterior-posterior direction is arranged along the x-axis, and a medial-lateral direction is arranged along the y-axis.

[0043] The article of footwear 100 includes a lateral side portion (e.g., lateral side) 112 (shown in FIG. 2) and a medial side portion (e.g., medial side) 114 (shown in FIG. 3) arranged opposite one another across a longitudinal axis 116 (shown in FIG. 4) of the article of footwear 100. The longitudinal axis is defined by a line bisecting and perpendicular to the widest portion of the forefoot along the y-axis.

[0044] The upper 104 is coupled to the sole structure 102 forming a foot-receiving cavity between the sole structure 102 and the upper 104. For example, the upper 104 may include one or more material elements (for example, textiles, foam, leather, and synthetic leather), which may be stitched, adhesively bonded, molded, or otherwise formed to define an interior void configured to receive a foot. The material elements may be selected and arranged to selectively impart properties such as durability, air-permeability, wear-resistance, flexibility, and comfort. The upper 104 can comprise one or more adjustment and / or closure mechanisms (e.g., laces, zippers, straps, buckles, and / or other means for adjusting and / or closing an article of footwear).

[0045] Referring now to FIG. 4, the surfaces of the outsole 106 can have various types of traction elements. The traction elements of various regions of the outsole can be configured differently than one or more other traction elements of other regions. For example, the outsole 106 comprises a plurality of ribs 118 and a plurality of nubs 120. The ribs 118 and the nubs 120 are further described below.

[0046] Referring still to FIG. 4, the ribs 118 of the outsole 106 have a wave-like or peak-and-valley-like shape. Most of the ribs each comprise side segments 118a at least generally aligned with the y-axis and angled segments 118b forming a peak 118c (which can also be referred to as “an apex”) directed toward the anterior end of the outsole. It should be noted that some of the ribs 118 are truncated or “lopped-off” (e.g., the ribs 118 disposed toward the posterior end of the outsole). Each rib 118 is a spaced apart from an adjacent rib 118 in the anterior-posterior direction (i.e., along the x-axis). This spacing accommodates the nubs 120.

[0047] The angled segments 118b and peak 118c of each rib 118 increase the surface area with which the ribs 118 contact the ground in the intermediate region of the outsole (i.e., the area along and adjacent the longitudinal axis 116 and spaced from the medial and lateral edges). Therefore, the ribs 118 can, for example, increase traction when forces are applied to the intermediate region of the forefoot, such as during abrupt stops (e.g., a jump stop—see FIG. 10). In addition to deceleration, the ribs 118 can provide improved traction during acceleration.

[0048] As shown in FIG. 5, the nubs 120 in the intermediate region of the forefoot are relative longer in length than nubs at other areas of the outsole because these nubs follow the curvature of the ribs 118 for longer lengths without intersecting the ribs 118. In this manner, the relative long nubs disposed in the intermediate region of the forefoot can, for example, increase traction when forces are applied to the intermediate region of the forefoot, such as during abrupt stops (e.g., a jump stop—see FIG. 10). In addition to deceleration, the nubs 120 can provide improved traction during acceleration.

[0049] The traction pattern of the ribs 118 and the nubs 120 at the intermediate portion therefore collectively and / or synergistically improve traction at the intermediate region of the forefoot of the outsole, which is advantageous, for example, during acceleration / deceleration.

[0050] In addition to aiding with traction in intermediate portion of the outsole 106, the ribs 118 and nubs 120 also aid in traction in the lateral side portion and the medial side portion of the outsole 106. As described above, the ribs 118 at the lateral and medial side portions are at least generally elongate and extend approximately parallel to the lateral axis (i.e., the y-axis). The ribs 118 are also spaced apart from each other in the longitudinal direction (i.e., in the x-axis), which forms channels 122 (FIG. 8) between the ribs 118. The nubs 120 are disposed within the channels 122. The nubs 120 disposed within the channels 122 are collectively arranged in elliptical or marquise pattern, where two small ellipses / marquises are approximately centered on the longitudinal axis 116, with one at the forefoot and another at the heel, each having their long axis oriented generally parallel to the longitudinal axis 116. The nubs 120 are spaced apart from each other such that the nubs for progressively larger ellipses / marquises shapes. The relatively large elliptical / marquise shapes of the forefoot and heel are joined together at the arch region 124 of the outsole 106 to form an hour-glass shape, with the waist at the arch region 124.

[0051] In this manner, each individual nub disposed between the side segments 118a of the ribs 118 is relatively short in the x-direction compared to the individual nubs disposed between the angled segments 118b of the ribs 118. These nubs can be referred to as “side nubs 120a.” The nubs 120 disposed between the side nubs 120a can be referred to as “intermediate nubs 120b,” which correspond the angled ribs 118b. The relatively short length of the side nubs 120a can, for example, result in relatively high stiffness at the lateral and medial side regions of the outsole 106. Also, the overall number of side nubs 120a on the lateral and medial side portions of the outsole is relatively high. The high number of side nubs 120a and / or their relatively high stiffness can, for example, provide improved support and / or traction during lateral movement (e.g., cutting—see FIG. 9).

[0052] The side nubs can be perpendicular or at least substantially perpendicular to the side segments of the ribs. For example, in some instances, the side nubs are angled relative to the side segments of the ribs at an angle within a range of 85-95 degrees.

[0053] The forefoot of the outsole therefore has higher density of nubs and shorter, straighter nubs on the lateral side portion and the medial side portion and a lower density of nubs and longer, more arcuate nubs at the intermediate portion. Providing a different rib and / or nub traction pattern at the medial and lateral side portion of the outsole compared to the rib and / or nub traction pattern at the intermediate portion of the outsole has one or more advantages. For example, this configuration can provide improved support and stability during both lateral direction changes (e.g., left / right cuts) and longitudinal direction changes (e.g., start / stops). Accordingly, the disclosed traction pattern of the outsole 106 can be particularly advantageous for activities with frequent lateral and longitudinal direction changes on a relatively hard, smooth playing surface (e.g., basketball, tennis, volleyball, futsal, floor hockey, etc.).

[0054] The ribs can comprise various cross-sectional shapes. For example, the ribs 118 can a generally rectangular cross-sectional shape. The ribs can have other cross-sectional shapes such as trapezoidal. It some instances, each rib can have a uniform cross-sectional profile along the entire length of the rib (i.e., the lateral side portion, the intermediate portion, and the medial side portion). In some instances, the cross-sectional profile of each rib can vary along its length. For example, the side segments 118a of the ribs 118 can have a first cross-sectional profile (e.g., rectangular), and the angled segments 118b of the ribs 118 can have a second cross-sectional profile (e.g., trapezoidal).

[0055] The nubs can comprise various cross-sectional shapes. For example, the nubs 120 can a generally trapezoidal cross-sectional shape. The nubs can have other cross-sectional shapes such as rectangular. It some instances, each nub can have a uniform cross-sectional profile along the entire length of the nub. In some instances, the cross-sectional profile of each nub can vary along its length. In some instances, the nubs disposed at one region of the outsole can have a first cross-sectional profile, and the nubs disposed at another region of the outsole can have a second cross-sectional profile. For example, the side nubs 120a can have a trapezoidal cross-sectional profile, and the intermediate nubs 120b can have a rectangular cross-sectional profile.

[0056] As depicted in FIG. 7, the nubs 120 can be spaced apart at their sides from the ribs 118. This can, for example, allow the nubs 120 and / or ribs 118 to individually deflect relative to each other at least to some extent. In other examples, one or more of the nubs can be joined at their sides with the ribs.

[0057] In some examples, the ribs and / or the nubs can have a uniform or at least substantially uniform height in the z-direction. In some instances, the ribs and / or the nubs can have a first height at one or more locations of the outsole and a second height at one or more other locations of the outsole. For example, the ribs and nubs can have a greater height at the lateral side portion and the medial side portion of the forefoot than at the intermediate portion of the forefoot. This can, for example, result in a relatively flat profile at the forefoot in the y-direction, as depicted in FIGS. 6-7. This relatively flat profile (compared to a traditionally more convex shape) can, for example, improve stability and support in the lateral direction, countering the foot’s shoes tendency to roll. The relatively flat profile can additionally or alternatively provide a relatively large contact patch with the ground when the wearer’s weight is on the ball of their foot, which can improve traction during acceleration / deceleration.

[0058] It should be noted that although the drawings illustrate one example of the outsole 106, the various traction surfaces (e.g., the ribs 118 and the nubs 120) described above may have different sizes, shapes, numbers, or arrangements than those shown. For example, the outsole 106 may include more or fewer ribs and / or nubs while maintaining the overall configuration. For example, the spacing and / or width of the ribs 118 and nubs 120 can be adapted based on the intended ground surface or use of the wearer.

[0059] The outsole 106 may comprise single polymeric material type and / or uniform properties (e.g., hardness—Shore A durometer rating). In one example, the entire outsole 106 can comprise the same polymeric material type (e.g., rubber) and have uniform properties (e.g., 40A-80A hardness). In some examples, the outsole 106 comprise a plurality of polymers and / or have non-uniform properties. In this example, the different polymers may provide different amounts of support and / or different traction properties.

[0060] FIGS. 9-10 show a portion of an athlete 200 wearing the article of footwear 100, which may include the outsole 106 of FIGS. 1-8. The athlete 200 is a basketball player moving relative to a ground surface (e.g., a basketball court) 202. However, in alternate examples, the article of footwear 100 may be worn by a different type of athlete, such as a tennis player, a volleyball player, etc., and one or more elements of the article of footwear 100 may be adapted for the intended sport.

[0061] As shown in FIG. 9, the athlete 200 may move (e.g., cut) in a lateral direction. As shown in FIG. 10, the athlete 200 decelerate quickly (e.g., jump stop) in a longitudinal direction. The article of footwear 100 comprising the outsole 106 (or the various outsoles disclosed herein) can, for example, provide improved support and / or traction in these situations compared to traditional footwear.Additional Examples of the Disclosed Technology

[0062] In view of the above-described implementations of the disclosed subject matter, this application discloses the additional examples enumerated below. It should be noted that one feature of an example in isolation or more than one feature of the example taken in combination and, optionally, in combination with one or more features of one or more further examples are further examples also falling within the disclosure of this application.

[0063] Example 1. An article of footwear comprises an upper and a sole structure. The sole structure is coupled to the upper and comprises a midsole and an outsole. The outsole comprises a forefoot region comprising a lateral side portion, a medial side portion, an intermediate portion disposed between the lateral side portion and the medial side portion, a plurality of ribs, and a plurality of nubs. The plurality of ribs extends from the lateral side portion, across the intermediate portion, and to the medial side portion. Each rib of the plurality of ribs is spaced apart from an adjacent rib of the plurality of ribs and comprises a first side segment disposed on the lateral side portion, a second side segment disposed on the medial side portion, a first angled segment, and a second angled segment. The first angled segment extends from first side segment, the second angled segment extends from the second side segment, and the first angled segment and the second angled segment form a peak directed towards an anterior end of the outsole. Each nub of the plurality of nubs is disposed between two adjacent ribs of the plurality of ribs. The plurality of nubs comprises side nubs and intermediate nubs. The side nubs are disposed between pairs of first side segments of the plurality of ribs or between pairs of second side segments of the plurality of ribs, and the intermediate nubs are disposed between pairs of the angled segments of the plurality of ribs. The one or more of the intermediate nubs is longer than the side nubs.

[0064] Example 2. The article of footwear of any example herein, particularly example 1, wherein the side nubs are angled relative to the first side segments at an angle within 85-95 degrees.

[0065] Example 3. The article of footwear of any example herein, particularly either example 1 or example 2, wherein one or more of the intermediate nubs comprises an arcuate shape.

[0066] Example 4. The article of footwear of any example herein, particularly any one of examples 1-3, wherein the plurality of nubs is arranged in rows of nubs, and wherein each row of nubs comprises an elliptical shape.

[0067] Example 5. The article of footwear of any example herein, particularly any one of examples 1-3, wherein the plurality of nubs is arranged in rows of nubs, and wherein each row of nubs comprises marquise shape.

[0068] Example 6. The article of footwear of any example herein, particularly any one of examples 1-5, wherein a height of each rib of the plurality of ribs is uniform from the first side segment to the second side segment.

[0069] Example 7. The article of footwear of any example herein, particularly any one of examples 1-5, wherein a height of a first angled segment or a second angled segment of each rib of the plurality of ribs is less than a height of the first side segment or the second side segment of the rib.

[0070] Example 8. The article of footwear of any example herein, particularly any one of examples 1-7, wherein a height of the plurality of nubs is uniform.

[0071] Example 9. The article of footwear of any example herein, particularly any one of examples 1-7, wherein a height of one or more nubs of the plurality of nubs is different than a height of one or more other nubs of the plurality of nubs.

[0072] Example 10. The article of footwear of any example herein, particularly any one of examples 1-9, wherein outsole further comprises a heel region comprising a lateral side portion, a medial side portion, an intermediate portion disposed between the lateral side portion and the medial side portion, a plurality of ribs, and a plurality of nubs. The plurality of ribs extend from the lateral side portion, across the intermediate portion, and to the medial side portion. Each rib of the plurality of ribs is spaced apart from an adjacent rib of the plurality of ribs and comprises a first side segment disposed on the lateral side portion, a second side segment disposed on the medial side portion, a first angled segment, and a second angled segment. The first angled segment extends from first side segment, the second angled segment extends from the second side segment, and the first angled segment and the second angled segment form a peak directed towards an anterior end of the outsole. Each nub of the plurality of nubs is disposed between two adjacent ribs of the plurality of ribs. The plurality of nubs comprises side nubs and intermediate nubs. The side nubs are disposed between pairs of first side segments of the plurality of ribs or between pairs of second side segments of the plurality of ribs. The intermediate nubs are disposed between pairs of the angled segments of the plurality of ribs. One or more of the intermediate nubs is longer than the side nubs.

[0073] Example 11. The article of footwear of any example herein, particularly example 10, wherein the plurality of nubs at the heel region is arranged in rows of nubs, and wherein each row of nubs comprises an elliptical shape.

[0074] Example 12. The article of footwear of any example herein, particularly example 10, wherein the plurality of nubs at the heel region is arranged in rows of nubs, and wherein each row of nubs comprises marquise shape.

[0075] Example 13. The article of footwear of any example herein, particularly example 10, further comprising a plurality of nubs at an arch region of the outsole, wherein the plurality of nubs at the forefoot region, the plurality of nubs at the arch region, and the plurality of nubs at the heel region are arranged in rows of nubs, and wherein each row or nubs comprises an hourglass shape having a waist disposed at the arch region.

[0076] Example 14. The article of footwear of any example herein, particularly any one of examples 1-13, wherein one or more nubs of the plurality of nubs comprise a trapezoidal cross-sectional profile.

[0077] Example 15. The article of footwear of any example herein, particularly any one of examples 1-14, wherein one or more ribs of the plurality of ribs comprises a rectangular cross-sectional profile.

[0078] Example 16. An outsole for an article of footwear comprises an anterior end, a posterior end, a lateral side portion, a medial side portion, an intermediate portion disposed between the lateral side portion and the medial side portion, a plurality of ribs, and a plurality of nubs. The plurality of ribs extends from the lateral side portion, across the intermediate portion, and to the medial side portion. Each rib of the plurality of ribs is spaced apart from an adjacent rib of the plurality of ribs and comprises a first side segment disposed on the lateral side portion, a second side segment disposed on the medial side portion, a first angled segment, and a second angled segment. The first angled segment extends from first side segment, the second angled segment extends from the second side segment, and the first angled segment and the second angled segment form a peak directed towards the anterior end. Each nub of the plurality of nubs is disposed between two adjacent ribs of the plurality of ribs. The plurality of nubs comprises side nubs and intermediate nubs. The side nubs are disposed between pairs of first side segments of the plurality of ribs or between pairs of second side segments of the plurality of ribs, and the intermediate nubs are disposed between pairs of the angled segments of the plurality of ribs. One or more of the intermediate nubs is longer than the side nubs.

[0079] Example 17. The outsole of any example herein, particularly example 16, wherein the side nubs are angled relative to the first side segments at an angle within 85-95 degrees.

[0080] Example 18. The outsole of any example herein, particularly either example 16 or example 17, wherein one or more of the intermediate nubs comprises an arcuate shape.

[0081] Example 19. The outsole of any example herein, particularly any one of examples 16-18, wherein the plurality of nubs is arranged in rows of nubs, and wherein each row of nubs comprises an elliptical shape.

[0082] Example 20. The outsole of any example herein, particularly any one of examples 16-18, wherein the plurality of nubs is arranged in rows of nubs, and wherein each row of nubs comprises marquise shape.

[0083] Example 21. The outsole of any example herein, particularly any one of examples 16-20, wherein a height of each rib of the plurality of ribs is uniform.

[0084] Example 22. The outsole of any example herein, particularly any one of examples 16-20, wherein a height of the intermediate segment of each rib of the plurality of ribs is less than a height of the first side segment or the second side segment of the rib.

[0085] In view of the many possible ways in which the principles of the disclosure may be applied, it should be recognized that the illustrated configurations depict examples of the disclosed technology and should not be taken as limiting the scope of the disclosure nor the claims. Rather, the scope of the claimed subject matter is defined by the following claims and their equivalents.

Examples

example 4

[0066] The article of footwear of any example herein, particularly any one of examples 1-3, wherein the plurality of nubs is arranged in rows of nubs, and wherein each row of nubs comprises an elliptical shape.

[0067]Example 5. The article of footwear of any example herein, particularly any one of examples 1-3, wherein the plurality of nubs is arranged in rows of nubs, and wherein each row of nubs comprises marquise shape.

[0068]Example 6. The article of footwear of any example herein, particularly any one of examples 1-5, wherein a height of each rib of the plurality of ribs is uniform from the first side segment to the second side segment.

example 7

[0069] The article of footwear of any example herein, particularly any one of examples 1-5, wherein a height of a first angled segment or a second angled segment of each rib of the plurality of ribs is less than a height of the first side segment or the second side segment of the rib.

example 8

[0070] The article of footwear of any example herein, particularly any one of examples 1-7, wherein a height of the plurality of nubs is uniform.

[0071]Example 9. The article of footwear of any example herein, particularly any one of examples 1-7, wherein a height of one or more nubs of the plurality of nubs is different than a height of one or more other nubs of the plurality of nubs.

[0072]Example 10. The article of footwear of any example herein, particularly any one of examples 1-9, wherein outsole further comprises a heel region comprising a lateral side portion, a medial side portion, an intermediate portion disposed between the lateral side portion and the medial side portion, a plurality of ribs, and a plurality of nubs. The plurality of ribs extend from the lateral side portion, across the intermediate portion, and to the medial side portion. Each rib of the plurality of ribs is spaced apart from an adjacent rib of the plurality of ribs and comprises a first side segment disp...

CROSS REFERENCE TO RELATED APPLICATION

[0001] This application claims the benefit of U.S. Provisional Application No. 63 / 756,927, filed February 11, 2025. The prior application is incorporated herein by reference in its entirety.FIELD

[0002] This disclosure relates generally to articles of footwear and more particularly to outsoles for articles of footwear.BACKGROUND

[0003] An article of footwear (also referred to herein as “article”) typically includes two main components: a sole structure and an upper. The sole structure is configured for supporting the wearer’s foot and providing cushioning between the wearer’s foot and the ground. The sole structure may include an outsole that is adapted to contact the ground. The upper is coupled to the sole structure and is configured for securing the wearer’s foot to the sole structure.BRIEF DESCRIPTION OF THE DRAWINGS

[0004] FIG. 1 is a perspective view of an exemplary article of footwear.

[0005] FIG. 2 is a lateral side view of the article of footwear.

[0006] FIG. 3 is a medial side view of the article of footwear.

[0007] FIG. 4 is a bottom plan view of the article of footwear.

[0008] FIG. 5 is a detail view of a forefoot region of an outsole of the article of footwear.

[0009] FIG. 6 is a lateral side view of the outsole.

[0010] FIG. 7 is another detail view of a forefoot region of an outsole.

[0011] FIG. 8 is another detail view of a forefoot region of an outsole.

[0012] FIG. 9 is a perspective view of the article of footwear in use, as worn by a basketball player performing a lateral cut.

[0013] FIG. 10 is a perspective view of the article of footwear in use, as worn by a basketball player performing a jump stop.DETAILED DESCRIPTIONGeneral Considerations

[0014] The systems and methods described herein, and individual components thereof, should not be construed as being limited to the particular uses or systems described herein in any way. Instead, this disclosure is directed toward all novel and non-obvious features and aspects of the various disclosed examples, alone and in various combinations and subcombinations with one another. For example, any features or aspects of the disclosed examples can be used in various combinations and subcombinations with one another, as will be recognized by an ordinarily skilled artisan in the relevant field(s) in view of the information disclosed herein. In addition, the disclosed systems, methods, and components thereof are not limited to any specific aspect or feature or combinations thereof, nor do the disclosed things and methods require that any one or more specific advantages be present or problems be solved.

[0015] As used in this application the singular forms “a,”“an,” and “the” include the plural forms unless the context clearly dictates otherwise. Additionally, the term “includes” means “comprises.” Further, the term “coupled” or “secured” encompasses mechanical and chemical couplings, as well as other practical ways of coupling or linking items together, and does not exclude the presence of intermediate elements between the coupled items unless otherwise indicated, such as by referring to elements, or surfaces thereof, being “directly” coupled or secured. Furthermore, as used herein, the term “and / or” means any one item or combination of items in the phrase.

[0016] As used herein, “e.g.” means “for example” and “i.e.” means “that is.”

[0017] As used herein, the term “exemplary” means serving as a non-limiting example, instance, or illustration. As used herein, the terms “e.g.,” and “for example,” introduce a list of one or more non-limiting examples, instances, implementations, and / or illustrations.

[0018] As used herein, the directional terms (e.g., “upper” and “lower”) generally correspond to the orientation of an article of footwear or sole assembly as it is configured to be worn by a wearer. For example, an “upwardly-facing surface” and / or an “upper surface” of a sole assembly refers to the surface oriented in the “superior” anatomical direction (i.e., toward the head of a wearer) when the article of footwear is being worn by the wearer. Similarly, the directional terms “downwardly” and / or “lower” refer to the anatomical direction “inferior” (i.e., toward the ground and away from the head of the wearer). “Front” means “anterior” (e.g., towards the toes), and “rear” means “posterior” (e.g., towards the heel). “Medial” means “toward the midline of the body,” and “lateral” means “away from the midline of the body.”“Longitudinal axis” refers to a centerline of the article from the heel to toe. Similarly, a “longitudinal length” refers to a length of the article along the longitudinal axis and a “longitudinal direction” refers to a direction along the longitudinal axis.

[0019] As used herein, the term “sole structure” refers to any combination of materials that provides support for a wearer's foot and bears the surface that is in direct contact with the ground or playing surface, such as, for example, a single sole; a combination of an outsole and an inner sole; a combination of an outsole, a midsole, and an inner sole; and a combination of an outer covering, an outsole, a midsole and an inner sole.

[0020] As used herein, the terms “attached” and “coupled” generally mean physically connected or linked, which includes items that are directly attached / coupled and items that are attached / coupled with intermediate elements between the attached / coupled items, unless specifically stated to the contrary.

[0021] As used herein, the terms “fixedly attached” and “fixedly coupled” refer to two components joined in a manner such that the components may not be readily separated from one another without destroying and / or damaging one or both components. Exemplary modalities of fixed attachment may include joining with permanent adhesive, stitches, welding or other thermal bonding, and / or other joining techniques. In addition, two components may be “fixedly attached” or “fixedly coupled” by virtue of being integrally formed, for example, in a molding process. In contrast, the terms “temporarily attached,”“temporarily coupled,” or “temporarily fixed,” refer to two components joined in a manner such that the components can be readily separated from one another to return to their separate, discrete forms without destroying and / or damaging either component. Exemplary modalities of temporary attachment may include removable stitches or other temporary joining techniques.

[0022] As used herein, the terms “articles of footwear” or “articles” mean any type of footwear, including, for example, basketball shoes, volleyball shoes, tennis shoes, running shoes, soccer shoes, football shoes, rugby shoes, baseball shoes, sneakers, hiking boots, sandals, socks, etc.

[0023] As used herein, the term “traction surface” refers to a surface that includes one or more traction elements that are configured to provide increased traction between the portion of the article of footwear on which the traction surface is disposed and a ground surface (e.g., the ground). For example, an outsole of an article of footwear can comprise a traction surface configured to increase traction between the article of footwear and the ground surface. In some instances, a traction surface may be in contact (e.g., fully or partially) with the ground surface when a wearer is performing one or more types of movement (e.g., lateral movement) and may not be in contact with the ground surface when the wearer is performing one or more other types of movement (e.g., forward movement). As used herein, a “traction element” or “traction elements” refer to elements disposed on a traction surface such as projections, ribs, nubs, grooves, siping, and / or are otherwise textured relative to a relatively smooth or untextured portion of the traction surface. A “non-traction surface” may refer to a surface that does not include any traction elements.

[0024] Although the figures may illustrate an article of footwear intended for use on only one foot (e.g., a right foot) of a wearer. One skilled in the art and having the benefit of this disclosure will recognize that a corresponding article of footwear for the other foot (e.g., a left foot) would be a mirror image of the right article of footwear.

[0025] Although the figures and description may illustrate an article of footwear intended for a particular use (e.g., basketball), the article of footwear can be used for various other uses (e.g., volleyball, tennis, etc.).

[0026] Unless explained otherwise, all technical and scientific terms used herein have the same meaning as commonly understood to one of ordinary skill in the art to which this disclosure belongs. Although methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present disclosure, suitable methods and materials are described below. The materials, methods, and examples are illustrative only and not intended to be limiting. Other features of the disclosure are apparent from the detailed description, claims, abstract, and drawings.The Disclosed Technology

[0027] An article of footwear typically includes two main components: a sole structure and an upper. The sole structure is configured for supporting the wearer’s foot and providing cushioning between the wearer’s foot and the ground (e.g., the surface on which they are moving, walking, running, etc.). The upper is coupled to the sole structure and forms a foot-receiving cavity. The upper is configured for securing the wearer’s foot to the sole structure and / or can protect the wearer’s foot.

[0028] In use, a wearer’s foot may move in different directions and change orientation relative to the ground, thereby changing which surfaces of the article of footwear have contact with the ground during use. For example, the sole structure may comprise an outsole that has an inferior side portion, lateral side portion, medial side portion, and an intermediate portion. The inferior side portion can extend between the lateral side portion, the intermediate portion, and the medial side portion and can be considered a main, ground-contacting surface (e.g., the “bottom” surface of the outsole which has contact with the ground when the wearer is standing upright with their toes facing forward and heel facing backward).

[0029] The inferior side portion of the outsole may have one or more traction surfaces with one or more traction elements that provide increased traction between the article of footwear and the ground. As a result, while moving across the ground, the wearer may be less likely to slip. For athletes, these traction surfaces may provide enhanced traction while moving quickly across the ground, and / or during frequent changes in foot orientation and / or direction of movement. In one example, an athlete (such as a basketball player) may move (e.g., “cut”) in a lateral or medial direction, as shown, for example, in FIG. 9. Side-to-side directional changes can exert relatively high forces on the medial side portion and / or the lateral side portions of the outsole (i.e., depending on the direction of motion). In another example, an athlete (such as a basketball player) may be moving forward (e.g., running) and then abruptly stop (e.g., “jump stop”), as shown, for example, in FIG. 10. Abrupt stops can exert relatively high forces on the intermediate portion of the outsole, particularly the forefoot region. Accordingly, the traction surfaces of the medial side portion, lateral side portion, and / or intermediate portion of the outsole can be configured to improve the wearer’s ability to perform specific movements and performance.

[0030] Disclosed herein are articles of footwear that have an outsole with medial and lateral side portions and intermediate portions configured with specific traction elements for improving the wearer’s ability to change direction quickly. The disclosed articles of footwear and outsoles are primarily described in connection with basketball shoes. The disclosed articles of footwear can be used with and / or adapted for use in other activities with frequent direction changes on a relatively smooth and / or hard surface. Exemplary alternative activities include volleyball, tennis, futsal, floor hockey, etc.

[0031] In some examples, an article of footwear comprises an outsole comprising a forefoot region comprises a lateral side portion, a medial side portion, an intermediate portion, a plurality of ribs, and a plurality of nubs.

[0032] In some examples, the intermediate portion is disposed between the lateral side portion and the medial side portion.

[0033] In some examples, the plurality of ribs extends from the lateral side portion, across the intermediate portion, and to the medial side portion.

[0034] In some examples, each rib of the plurality of ribs is spaced apart from an adjacent rib of the plurality of ribs and comprises a first side segment disposed on the lateral side portion, a second side segment disposed on the medial side portion, a first angled segment, and a second angled segment.

[0035] In some examples, the first angled segment extends from first side segment, the second angled segment extends from the second side segment, and the first angled segment and the second angled segment form a peak directed towards an anterior end of the outsole.

[0036] In some examples, each nub of the plurality of nubs is disposed between two adjacent ribs of the plurality of ribs.

[0037] In some examples, the plurality of nubs comprises side nubs and intermediate nubs.

[0038] in some examples, the side nubs are disposed between pairs of first side segments of the plurality of ribs or between pairs of second side segments of the plurality of ribs, and the intermediate nubs are disposed between pairs of the angled segments of the plurality of ribs.

[0039] In some examples, one or more of the intermediate nubs is longer than the side nubs.

[0040] Additional examples of the disclosed technology are described below with reference to the accompanying drawings.Examples of the Disclosed Technology

[0041] FIGS. 1-3 show an article of footwear 100, according to one example. The article of footwear 100 comprises two main components: a sole structure 102 and an upper 104. The upper 104 is coupled to the sole structure 102. The sole structure 102 includes an outsole 106 and a midsole 108. As further described below in connection with FIGS. 4-8, the outsole 106 can be configured with a plurality of traction surfaces and can be configured to cover and / or protect at least a portion of the midsole 108 and / or the upper 104. The midsole 108 can be disposed between the upper 104 and the outsole 106 and can be configured to provide cushioning. The upper 104 can be coupled to the midsole (e.g., at a strobel). As discussed further herein, certain portions of the outsole 106, such as a medial side portion, a lateral side portion, and an intermediate portion, may include one or more traction surfaces configured to provide improved traction when a wearer is changing directions quickly, accelerating, and / or decelerating.

[0042] FIG. 1 depicts a perspective view of a lateral side of the article of footwear 100, FIG. 2 depicts a lateral side view of the article of footwear 100, and FIG. 3 depicts a medial side view of the article of footwear 100. FIGS. 2-4 include reference axes 110 having an x-axis, y-axis, and z-axis. As referred to herein, a superior-inferior direction is arranged along the z-axis, an anterior-posterior direction is arranged along the x-axis, and a medial-lateral direction is arranged along the y-axis.

[0043] The article of footwear 100 includes a lateral side portion (e.g., lateral side) 112 (shown in FIG. 2) and a medial side portion (e.g., medial side) 114 (shown in FIG. 3) arranged opposite one another across a longitudinal axis 116 (shown in FIG. 4) of the article of footwear 100. The longitudinal axis is defined by a line bisecting and perpendicular to the widest portion of the forefoot along the y-axis.

[0044] The upper 104 is coupled to the sole structure 102 forming a foot-receiving cavity between the sole structure 102 and the upper 104. For example, the upper 104 may include one or more material elements (for example, textiles, foam, leather, and synthetic leather), which may be stitched, adhesively bonded, molded, or otherwise formed to define an interior void configured to receive a foot. The material elements may be selected and arranged to selectively impart properties such as durability, air-permeability, wear-resistance, flexibility, and comfort. The upper 104 can comprise one or more adjustment and / or closure mechanisms (e.g., laces, zippers, straps, buckles, and / or other means for adjusting and / or closing an article of footwear).

[0045] Referring now to FIG. 4, the surfaces of the outsole 106 can have various types of traction elements. The traction elements of various regions of the outsole can be configured differently than one or more other traction elements of other regions. For example, the outsole 106 comprises a plurality of ribs 118 and a plurality of nubs 120. The ribs 118 and the nubs 120 are further described below.

[0046] Referring still to FIG. 4, the ribs 118 of the outsole 106 have a wave-like or peak-and-valley-like shape. Most of the ribs each comprise side segments 118a at least generally aligned with the y-axis and angled segments 118b forming a peak 118c (which can also be referred to as “an apex”) directed toward the anterior end of the outsole. It should be noted that some of the ribs 118 are truncated or “lopped-off” (e.g., the ribs 118 disposed toward the posterior end of the outsole). Each rib 118 is a spaced apart from an adjacent rib 118 in the anterior-posterior direction (i.e., along the x-axis). This spacing accommodates the nubs 120.

[0047] The angled segments 118b and peak 118c of each rib 118 increase the surface area with which the ribs 118 contact the ground in the intermediate region of the outsole (i.e., the area along and adjacent the longitudinal axis 116 and spaced from the medial and lateral edges). Therefore, the ribs 118 can, for example, increase traction when forces are applied to the intermediate region of the forefoot, such as during abrupt stops (e.g., a jump stop—see FIG. 10). In addition to deceleration, the ribs 118 can provide improved traction during acceleration.

[0048] As shown in FIG. 5, the nubs 120 in the intermediate region of the forefoot are relative longer in length than nubs at other areas of the outsole because these nubs follow the curvature of the ribs 118 for longer lengths without intersecting the ribs 118. In this manner, the relative long nubs disposed in the intermediate region of the forefoot can, for example, increase traction when forces are applied to the intermediate region of the forefoot, such as during abrupt stops (e.g., a jump stop—see FIG. 10). In addition to deceleration, the nubs 120 can provide improved traction during acceleration.

[0049] The traction pattern of the ribs 118 and the nubs 120 at the intermediate portion therefore collectively and / or synergistically improve traction at the intermediate region of the forefoot of the outsole, which is advantageous, for example, during acceleration / deceleration.

[0050] In addition to aiding with traction in intermediate portion of the outsole 106, the ribs 118 and nubs 120 also aid in traction in the lateral side portion and the medial side portion of the outsole 106. As described above, the ribs 118 at the lateral and medial side portions are at least generally elongate and extend approximately parallel to the lateral axis (i.e., the y-axis). The ribs 118 are also spaced apart from each other in the longitudinal direction (i.e., in the x-axis), which forms channels 122 (FIG. 8) between the ribs 118. The nubs 120 are disposed within the channels 122. The nubs 120 disposed within the channels 122 are collectively arranged in elliptical or marquise pattern, where two small ellipses / marquises are approximately centered on the longitudinal axis 116, with one at the forefoot and another at the heel, each having their long axis oriented generally parallel to the longitudinal axis 116. The nubs 120 are spaced apart from each other such that the nubs for progressively larger ellipses / marquises shapes. The relatively large elliptical / marquise shapes of the forefoot and heel are joined together at the arch region 124 of the outsole 106 to form an hour-glass shape, with the waist at the arch region 124.

[0051] In this manner, each individual nub disposed between the side segments 118a of the ribs 118 is relatively short in the x-direction compared to the individual nubs disposed between the angled segments 118b of the ribs 118. These nubs can be referred to as “side nubs 120a.” The nubs 120 disposed between the side nubs 120a can be referred to as “intermediate nubs 120b,” which correspond the angled ribs 118b. The relatively short length of the side nubs 120a can, for example, result in relatively high stiffness at the lateral and medial side regions of the outsole 106. Also, the overall number of side nubs 120a on the lateral and medial side portions of the outsole is relatively high. The high number of side nubs 120a and / or their relatively high stiffness can, for example, provide improved support and / or traction during lateral movement (e.g., cutting—see FIG. 9).

[0052] The side nubs can be perpendicular or at least substantially perpendicular to the side segments of the ribs. For example, in some instances, the side nubs are angled relative to the side segments of the ribs at an angle within a range of 85-95 degrees.

[0053] The forefoot of the outsole therefore has higher density of nubs and shorter, straighter nubs on the lateral side portion and the medial side portion and a lower density of nubs and longer, more arcuate nubs at the intermediate portion. Providing a different rib and / or nub traction pattern at the medial and lateral side portion of the outsole compared to the rib and / or nub traction pattern at the intermediate portion of the outsole has one or more advantages. For example, this configuration can provide improved support and stability during both lateral direction changes (e.g., left / right cuts) and longitudinal direction changes (e.g., start / stops). Accordingly, the disclosed traction pattern of the outsole 106 can be particularly advantageous for activities with frequent lateral and longitudinal direction changes on a relatively hard, smooth playing surface (e.g., basketball, tennis, volleyball, futsal, floor hockey, etc.).

[0054] The ribs can comprise various cross-sectional shapes. For example, the ribs 118 can a generally rectangular cross-sectional shape. The ribs can have other cross-sectional shapes such as trapezoidal. It some instances, each rib can have a uniform cross-sectional profile along the entire length of the rib (i.e., the lateral side portion, the intermediate portion, and the medial side portion). In some instances, the cross-sectional profile of each rib can vary along its length. For example, the side segments 118a of the ribs 118 can have a first cross-sectional profile (e.g., rectangular), and the angled segments 118b of the ribs 118 can have a second cross-sectional profile (e.g., trapezoidal).

[0055] The nubs can comprise various cross-sectional shapes. For example, the nubs 120 can a generally trapezoidal cross-sectional shape. The nubs can have other cross-sectional shapes such as rectangular. It some instances, each nub can have a uniform cross-sectional profile along the entire length of the nub. In some instances, the cross-sectional profile of each nub can vary along its length. In some instances, the nubs disposed at one region of the outsole can have a first cross-sectional profile, and the nubs disposed at another region of the outsole can have a second cross-sectional profile. For example, the side nubs 120a can have a trapezoidal cross-sectional profile, and the intermediate nubs 120b can have a rectangular cross-sectional profile.

[0056] As depicted in FIG. 7, the nubs 120 can be spaced apart at their sides from the ribs 118. This can, for example, allow the nubs 120 and / or ribs 118 to individually deflect relative to each other at least to some extent. In other examples, one or more of the nubs can be joined at their sides with the ribs.

[0057] In some examples, the ribs and / or the nubs can have a uniform or at least substantially uniform height in the z-direction. In some instances, the ribs and / or the nubs can have a first height at one or more locations of the outsole and a second height at one or more other locations of the outsole. For example, the ribs and nubs can have a greater height at the lateral side portion and the medial side portion of the forefoot than at the intermediate portion of the forefoot. This can, for example, result in a relatively flat profile at the forefoot in the y-direction, as depicted in FIGS. 6-7. This relatively flat profile (compared to a traditionally more convex shape) can, for example, improve stability and support in the lateral direction, countering the foot’s shoes tendency to roll. The relatively flat profile can additionally or alternatively provide a relatively large contact patch with the ground when the wearer’s weight is on the ball of their foot, which can improve traction during acceleration / deceleration.

[0058] It should be noted that although the drawings illustrate one example of the outsole 106, the various traction surfaces (e.g., the ribs 118 and the nubs 120) described above may have different sizes, shapes, numbers, or arrangements than those shown. For example, the outsole 106 may include more or fewer ribs and / or nubs while maintaining the overall configuration. For example, the spacing and / or width of the ribs 118 and nubs 120 can be adapted based on the intended ground surface or use of the wearer.

[0059] The outsole 106 may comprise single polymeric material type and / or uniform properties (e.g., hardness—Shore A durometer rating). In one example, the entire outsole 106 can comprise the same polymeric material type (e.g., rubber) and have uniform properties (e.g., 40A-80A hardness). In some examples, the outsole 106 comprise a plurality of polymers and / or have non-uniform properties. In this example, the different polymers may provide different amounts of support and / or different traction properties.

[0060] FIGS. 9-10 show a portion of an athlete 200 wearing the article of footwear 100, which may include the outsole 106 of FIGS. 1-8. The athlete 200 is a basketball player moving relative to a ground surface (e.g., a basketball court) 202. However, in alternate examples, the article of footwear 100 may be worn by a different type of athlete, such as a tennis player, a volleyball player, etc., and one or more elements of the article of footwear 100 may be adapted for the intended sport.

[0061] As shown in FIG. 9, the athlete 200 may move (e.g., cut) in a lateral direction. As shown in FIG. 10, the athlete 200 decelerate quickly (e.g., jump stop) in a longitudinal direction. The article of footwear 100 comprising the outsole 106 (or the various outsoles disclosed herein) can, for example, provide improved support and / or traction in these situations compared to traditional footwear.Additional Examples of the Disclosed Technology

[0062] In view of the above-described implementations of the disclosed subject matter, this application discloses the additional examples enumerated below. It should be noted that one feature of an example in isolation or more than one feature of the example taken in combination and, optionally, in combination with one or more features of one or more further examples are further examples also falling within the disclosure of this application.

[0063] Example 1. An article of footwear comprises an upper and a sole structure. The sole structure is coupled to the upper and comprises a midsole and an outsole. The outsole comprises a forefoot region comprising a lateral side portion, a medial side portion, an intermediate portion disposed between the lateral side portion and the medial side portion, a plurality of ribs, and a plurality of nubs. The plurality of ribs extends from the lateral side portion, across the intermediate portion, and to the medial side portion. Each rib of the plurality of ribs is spaced apart from an adjacent rib of the plurality of ribs and comprises a first side segment disposed on the lateral side portion, a second side segment disposed on the medial side portion, a first angled segment, and a second angled segment. The first angled segment extends from first side segment, the second angled segment extends from the second side segment, and the first angled segment and the second angled segment form a peak directed towards an anterior end of the outsole. Each nub of the plurality of nubs is disposed between two adjacent ribs of the plurality of ribs. The plurality of nubs comprises side nubs and intermediate nubs. The side nubs are disposed between pairs of first side segments of the plurality of ribs or between pairs of second side segments of the plurality of ribs, and the intermediate nubs are disposed between pairs of the angled segments of the plurality of ribs. The one or more of the intermediate nubs is longer than the side nubs.

[0064] Example 2. The article of footwear of any example herein, particularly example 1, wherein the side nubs are angled relative to the first side segments at an angle within 85-95 degrees.

[0065] Example 3. The article of footwear of any example herein, particularly either example 1 or example 2, wherein one or more of the intermediate nubs comprises an arcuate shape.

[0066] Example 4. The article of footwear of any example herein, particularly any one of examples 1-3, wherein the plurality of nubs is arranged in rows of nubs, and wherein each row of nubs comprises an elliptical shape.

[0067] Example 5. The article of footwear of any example herein, particularly any one of examples 1-3, wherein the plurality of nubs is arranged in rows of nubs, and wherein each row of nubs comprises marquise shape.

[0068] Example 6. The article of footwear of any example herein, particularly any one of examples 1-5, wherein a height of each rib of the plurality of ribs is uniform from the first side segment to the second side segment.

[0069] Example 7. The article of footwear of any example herein, particularly any one of examples 1-5, wherein a height of a first angled segment or a second angled segment of each rib of the plurality of ribs is less than a height of the first side segment or the second side segment of the rib.

[0070] Example 8. The article of footwear of any example herein, particularly any one of examples 1-7, wherein a height of the plurality of nubs is uniform.

[0071] Example 9. The article of footwear of any example herein, particularly any one of examples 1-7, wherein a height of one or more nubs of the plurality of nubs is different than a height of one or more other nubs of the plurality of nubs.

[0072] Example 10. The article of footwear of any example herein, particularly any one of examples 1-9, wherein outsole further comprises a heel region comprising a lateral side portion, a medial side portion, an intermediate portion disposed between the lateral side portion and the medial side portion, a plurality of ribs, and a plurality of nubs. The plurality of ribs extend from the lateral side portion, across the intermediate portion, and to the medial side portion. Each rib of the plurality of ribs is spaced apart from an adjacent rib of the plurality of ribs and comprises a first side segment disposed on the lateral side portion, a second side segment disposed on the medial side portion, a first angled segment, and a second angled segment. The first angled segment extends from first side segment, the second angled segment extends from the second side segment, and the first angled segment and the second angled segment form a peak directed towards an anterior end of the outsole. Each nub of the plurality of nubs is disposed between two adjacent ribs of the plurality of ribs. The plurality of nubs comprises side nubs and intermediate nubs. The side nubs are disposed between pairs of first side segments of the plurality of ribs or between pairs of second side segments of the plurality of ribs. The intermediate nubs are disposed between pairs of the angled segments of the plurality of ribs. One or more of the intermediate nubs is longer than the side nubs.

[0073] Example 11. The article of footwear of any example herein, particularly example 10, wherein the plurality of nubs at the heel region is arranged in rows of nubs, and wherein each row of nubs comprises an elliptical shape.

[0074] Example 12. The article of footwear of any example herein, particularly example 10, wherein the plurality of nubs at the heel region is arranged in rows of nubs, and wherein each row of nubs comprises marquise shape.

[0075] Example 13. The article of footwear of any example herein, particularly example 10, further comprising a plurality of nubs at an arch region of the outsole, wherein the plurality of nubs at the forefoot region, the plurality of nubs at the arch region, and the plurality of nubs at the heel region are arranged in rows of nubs, and wherein each row or nubs comprises an hourglass shape having a waist disposed at the arch region.

[0076] Example 14. The article of footwear of any example herein, particularly any one of examples 1-13, wherein one or more nubs of the plurality of nubs comprise a trapezoidal cross-sectional profile.

[0077] Example 15. The article of footwear of any example herein, particularly any one of examples 1-14, wherein one or more ribs of the plurality of ribs comprises a rectangular cross-sectional profile.

[0078] Example 16. An outsole for an article of footwear comprises an anterior end, a posterior end, a lateral side portion, a medial side portion, an intermediate portion disposed between the lateral side portion and the medial side portion, a plurality of ribs, and a plurality of nubs. The plurality of ribs extends from the lateral side portion, across the intermediate portion, and to the medial side portion. Each rib of the plurality of ribs is spaced apart from an adjacent rib of the plurality of ribs and comprises a first side segment disposed on the lateral side portion, a second side segment disposed on the medial side portion, a first angled segment, and a second angled segment. The first angled segment extends from first side segment, the second angled segment extends from the second side segment, and the first angled segment and the second angled segment form a peak directed towards the anterior end. Each nub of the plurality of nubs is disposed between two adjacent ribs of the plurality of ribs. The plurality of nubs comprises side nubs and intermediate nubs. The side nubs are disposed between pairs of first side segments of the plurality of ribs or between pairs of second side segments of the plurality of ribs, and the intermediate nubs are disposed between pairs of the angled segments of the plurality of ribs. One or more of the intermediate nubs is longer than the side nubs.

[0079] Example 17. The outsole of any example herein, particularly example 16, wherein the side nubs are angled relative to the first side segments at an angle within 85-95 degrees.

[0080] Example 18. The outsole of any example herein, particularly either example 16 or example 17, wherein one or more of the intermediate nubs comprises an arcuate shape.

[0081] Example 19. The outsole of any example herein, particularly any one of examples 16-18, wherein the plurality of nubs is arranged in rows of nubs, and wherein each row of nubs comprises an elliptical shape.

[0082] Example 20. The outsole of any example herein, particularly any one of examples 16-18, wherein the plurality of nubs is arranged in rows of nubs, and wherein each row of nubs comprises marquise shape.

[0083] Example 21. The outsole of any example herein, particularly any one of examples 16-20, wherein a height of each rib of the plurality of ribs is uniform.

[0084] Example 22. The outsole of any example herein, particularly any one of examples 16-20, wherein a height of the intermediate segment of each rib of the plurality of ribs is less than a height of the first side segment or the second side segment of the rib.

[0085] In view of the many possible ways in which the principles of the disclosure may be applied, it should be recognized that the illustrated configurations depict examples of the disclosed technology and should not be taken as limiting the scope of the disclosure nor the claims. Rather, the scope of the claimed subject matter is defined by the following claims and their equivalents.

Examples

example 4

[0066] The article of footwear of any example herein, particularly any one of examples 1-3, wherein the plurality of nubs is arranged in rows of nubs, and wherein each row of nubs comprises an elliptical shape.

[0067]Example 5. The article of footwear of any example herein, particularly any one of examples 1-3, wherein the plurality of nubs is arranged in rows of nubs, and wherein each row of nubs comprises marquise shape.

[0068]Example 6. The article of footwear of any example herein, particularly any one of examples 1-5, wherein a height of each rib of the plurality of ribs is uniform from the first side segment to the second side segment.

example 7

[0069] The article of footwear of any example herein, particularly any one of examples 1-5, wherein a height of a first angled segment or a second angled segment of each rib of the plurality of ribs is less than a height of the first side segment or the second side segment of the rib.

example 8

[0070] The article of footwear of any example herein, particularly any one of examples 1-7, wherein a height of the plurality of nubs is uniform.

[0071]Example 9. The article of footwear of any example herein, particularly any one of examples 1-7, wherein a height of one or more nubs of the plurality of nubs is different than a height of one or more other nubs of the plurality of nubs.

[0072]Example 10. The article of footwear of any example herein, particularly any one of examples 1-9, wherein outsole further comprises a heel region comprising a lateral side portion, a medial side portion, an intermediate portion disposed between the lateral side portion and the medial side portion, a plurality of ribs, and a plurality of nubs. The plurality of ribs extend from the lateral side portion, across the intermediate portion, and to the medial side portion. Each rib of the plurality of ribs is spaced apart from an adjacent rib of the plurality of ribs and comprises a first side segment disp...

Claims

1. An article of footwear comprising:an upper; anda sole structure coupled to the upper and comprising a midsole and an outsole, wherein the outsole comprises a forefoot region comprising:a lateral side portion;a medial side portion;an intermediate portion disposed between the lateral side portion and the medial side portion;a plurality of ribs extending from the lateral side portion, across the intermediate portion, and to the medial side portion, wherein each rib of the plurality of ribs is spaced apart from an adjacent rib of the plurality of ribs and comprises a first side segment disposed on the lateral side portion, a second side segment disposed on the medial side portion, a first angled segment, and a second angled segment, wherein the first angled segment extends from first side segment, wherein the second angled segment extends from the second side segment, and wherein the first angled segment and the second angled segment form a peak directed towards an anterior end of the outsole; anda plurality of nubs, wherein each nub of the plurality of nubs is disposed between two adjacent ribs of the plurality of ribs, wherein the plurality of nubs comprises side nubs and intermediate nubs, wherein the side nubs are disposed between pairs of first side segments of the plurality of ribs or between pairs of second side segments of the plurality of ribs, wherein the intermediate nubs are disposed between pairs of the angled segments of the plurality of ribs, and wherein one or more of the intermediate nubs is longer than the side nubs.

2. The article of footwear of claim 1, wherein the side nubs are angled relative to the first side segments at an angle within 85-95 degrees.

3. The article of footwear of claim 1, wherein one or more of the intermediate nubs comprises an arcuate shape.

4. The article of footwear of claim 1, wherein the plurality of nubs is arranged in rows of nubs, and wherein each row of nubs comprises an elliptical shape.

5. The article of footwear of claim 1, wherein the plurality of nubs is arranged in rows of nubs, and wherein each row of nubs comprises marquise shape.

6. The article of footwear of claim 1, wherein a height of each rib of the plurality of ribs is uniform from the first side segment to the second side segment.

7. The article of footwear of claim 1, wherein a height of a first angled segment or a second angled segment of each rib of the plurality of ribs is less than a height of the first side segment or the second side segment of the rib.

8. The article of footwear of claim 1, wherein a height of the plurality of nubs is uniform.

9. The article of footwear of claim 1, wherein a height of one or more nubs of the plurality of nubs is different than a height of one or more other nubs of the plurality of nubs.

10. The article of footwear of claim 1, wherein outsole further comprises a heel region comprising:a lateral side portion;a medial side portion;an intermediate portion disposed between the lateral side portion and the medial side portion;a plurality of ribs extending from the lateral side portion, across the intermediate portion, and to the medial side portion, wherein each rib of the plurality of ribs is spaced apart from an adjacent rib of the plurality of ribs and comprises a first side segment disposed on the lateral side portion, a second side segment disposed on the medial side portion, a first angled segment, and a second angled segment, wherein the first angled segment extends from first side segment, wherein the second angled segment extends from the second side segment, and wherein the first angled segment and the second angled segment form a peak directed towards an anterior end of the outsole; anda plurality of nubs, wherein each nub of the plurality of nubs is disposed between two adjacent ribs of the plurality of ribs, wherein the plurality of nubs comprises side nubs and intermediate nubs, wherein the side nubs are disposed between pairs of first side segments of the plurality of ribs or between pairs of second side segments of the plurality of ribs, wherein the intermediate nubs are disposed between pairs of the angled segments of the plurality of ribs, and wherein one or more of the intermediate nubs is longer than the side nubs.

11. The article of footwear of claim 10, wherein the plurality of nubs at the heel region is arranged in rows of nubs, and wherein each row of nubs comprises an elliptical shape.

12. The article of footwear of claim 10, wherein the plurality of nubs at the heel region is arranged in rows of nubs, and wherein each row of nubs comprises marquise shape.

13. The article of footwear of claim 10, further comprising a plurality of nubs at an arch region of the outsole, wherein the plurality of nubs at the forefoot region, the plurality of nubs at the arch region, and the plurality of nubs at the heel region are arranged in rows of nubs, and wherein each row or nubs comprises an hourglass shape having a waist disposed at the arch region.

14. The article of footwear of claim 1, wherein one or more nubs of the plurality of nubs comprise a trapezoidal cross-sectional profile.

15. The article of footwear of claim 1, wherein one or more ribs of the plurality of ribs comprises a rectangular cross-sectional profile.

16. An outsole for an article of footwear, the outsole comprising:an anterior end;a posterior end;a lateral side portion;a medial side portion;an intermediate portion disposed between the lateral side portion and the medial side portion;a plurality of ribs extending from the lateral side portion, across the intermediate portion, and to the medial side portion, wherein each rib of the plurality of ribs is spaced apart from an adjacent rib of the plurality of ribs and comprises a first side segment disposed on the lateral side portion, a second side segment disposed on the medial side portion, a first angled segment, and a second angled segment, wherein the first angled segment extends from first side segment, wherein the second angled segment extends from the second side segment, and wherein the first angled segment and the second angled segment form a peak directed towards the anterior end; anda plurality of nubs, wherein each nub of the plurality of nubs is disposed between two adjacent ribs of the plurality of ribs, wherein the plurality of nubs comprises side nubs and intermediate nubs, wherein the side nubs are disposed between pairs of first side segments of the plurality of ribs or between pairs of second side segments of the plurality of ribs, wherein the intermediate nubs are disposed between pairs of the angled segments of the plurality of ribs, and wherein one or more of the intermediate nubs is longer than the side nubs.

17. The outsole of claim 16, wherein the side nubs are angled relative to the first side segments at an angle within 85-95 degrees.

18. The outsole of claim 16, wherein one or more of the intermediate nubs comprises an arcuate shape.

19. The outsole of claim 16, wherein the plurality of nubs is arranged in rows of nubs, and wherein each row of nubs comprises an elliptical shape.

20. The outsole of claim 16, wherein the plurality of nubs is arranged in rows of nubs, and wherein each row of nubs comprises marquise shape.

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