Article of footwear having a knitted component and method of manufacturing the same
By forming radially extending rows and embedded ply knitted components on the upper, the problem of insufficient restraint during exercise in traditional knitted uppers is solved, improving stability and comfort, adapting to different sports needs, while maintaining lightness and breathability.
Patent Information
- Application Number
- CN202211305453.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2022-10-21
- Filing Date
- 2022-10-24
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2042-10-24
AI Technical Summary
Traditional knitted uppers are difficult to provide adequate foot restraint during exercise, increasing the weight and production time of the uppers, while reducing reusability. Furthermore, current technology cannot adjust the level and direction of restraint according to different activities.
A knitted upper component is employed, which provides multidirectional restraint and stability by forming continuous radially extending rows and embedded ply yarns in the forefoot, midfoot, and heel areas, utilizing high-tenacity yarns and a specific knitting structure, combined with wedge-shaped portions and embedded ply segments to enhance the structure of the upper.
It improves the stability and comfort of the shoe upper, reduces slippage and sliding, adapts to different sports needs, reduces the amount of additional reinforcement materials used, and maintains breathability and lightness.
Smart Images

Figure CN115998033B_ABST
Abstract
Description
[0001] Cross Reference to Related Applications and Priority Claim
[0002] This non-provisional patent application claims priority to co-pending U.S. Provisional Patent Application No. 63 / 270,987, filed October 22, 2021, and titled “Articles of Footwear with Knitted Components and Methods of Manufacturing the Same,” and to co-pending U.S. Provisional Patent Application No. 63 / 389,617, filed July 15, 2022, and titled “Articles of Footwear with Knitted Components and Methods of Manufacturing the Same.” The contents of the above two applications are incorporated by reference herein in their entirety. This application is also related to the subject matter of U.S. Patent Application, Attorney Docket No. 22752.388520, filed October 21, 2022, the entire contents of which are incorporated by reference herein.
[0003] TECHNICAL FIELD
[0004] Aspects herein relate to knitted components for articles, such as articles of footwear, and methods of manufacturing the knitted components. BACKGROUND
[0005] Conventional articles of footwear generally include two primary elements: an upper and a sole structure. The upper is secured to the sole structure and forms a void within the footwear for comfortably and securely receiving a foot. The upper can be formed from a variety of materials, including knitted textiles. As an athlete moves their foot within a knitted upper, forces can be exerted on the athlete’s foot that partially push the foot off of the sole structure. By keeping the foot constrained on the sole structure during movement, performance and comfort can be improved. The amount and location of containment needed can vary based on the activity. Various components can be added to the knitted upper through post-knitting processes to keep the foot constrained. However, such components added post-knitting can increase the weight of the upper, increase production time, and decrease the reusability of the upper. SUMMARY
[0006] Provided herein are the following items:
[0007] 1. An upper, comprising:
[0008] a knit component forming at least a forefoot region and a midfoot region of the upper and having an exterior perimeter, the forefoot region and the midfoot region being integrally knit, the forefoot region having a first course continuously extending between the exterior perimeter in the forefoot region and a common portion of the knit component, the midfoot region having a second course continuously extending between the exterior perimeter in the midfoot region and the common portion of the knit component, the first course and the second course extending at an angle relative to one another.
[0009] 2. The upper of item 1, wherein the knit component forms a heel region of the upper, the heel region having a third course continuously extending from the exterior perimeter in the heel region to the common portion of the knit component.
[0010] 3. The upper of item 1, wherein the common portion of the knit component is a throat area of the upper.
[0011] 4. The upper of item 3, wherein the common portion of the knit component is an anterior portion of the throat area of the upper.
[0012] 5. The upper of item 1, wherein the knit component forms a tongue of the upper.
[0013] 6. The upper of item 5, wherein the tongue is integrally knit with at least the forefoot region.
[0014] 7. The upper of item 1, wherein the knit component forms a heel region of the upper, the heel region having a third course, and wherein the knit component includes a fourth course extending at least partially in the heel region and a fifth course extending at least partially in a forefoot region, the fourth course and the fifth course each extending parallel to an axis extending between a portion of the forefoot region configured to cover a first metatarsal bone of a wearer to a lateral portion of the heel region.
[0015] 8. The upper of item 1, wherein the knit component forms a heel region of the upper, the heel region having a third course, and wherein the knit component includes a fourth course extending at least partially in the heel region and a fifth course extending at least partially in a forefoot region, the fourth course and the fifth course each extending parallel to an axis extending between a portion of the forefoot region configured to cover a fifth metatarsal bone of a wearer to a medial portion of the heel region.
[0016] 9. The upper of item 1, wherein the knitted component further comprises an embedded strand having a plurality of strand segments, each strand segment extending between the outer perimeter and the common portion.
[0017] 10. The upper of item 9, wherein one or more strand segments of the plurality of strand segments are positioned within the forefoot region of the upper.
[0018] 11. The upper of item 9, wherein the common portion comprises a throat area of the upper.
[0019] 12. The upper of item 1, wherein the upper comprises a portion of an article of footwear.
[0020] 13. A method of manufacturing a knitted component for an upper, the method comprising:
[0021] forming, on a knitting machine, a first midfoot region of the upper, the first midfoot region forming one of a lateral side and a medial side of the upper;
[0022] after forming the first midfoot region, forming, on the knitting machine, a forefoot region of the upper, the forefoot region being integrally knitted with the first midfoot region; and
[0023] after forming the forefoot region, forming, on the knitting machine, a second midfoot region of the upper, the second midfoot region being integrally knitted with the forefoot region and forming the other of the lateral side and the medial side.
[0024] 14. The method of item 13, wherein the knitted component comprises:
[0025] a first course positioned in the forefoot region and extending continuously between an outer perimeter of the upper and a common portion; and
[0026] a second course positioned in the first midfoot region of the upper and extending continuously between the outer perimeter and the common portion.
[0027] 15. The method of item 13, wherein at least a subset of needles used to form the first midfoot region are used to form the second midfoot region.
[0028] 16. The method of item 13, wherein the knitted component comprises a knitted element and an embedded strand extending through one or more courses of the knitted element, the embedded strand being embedded when the knitted element is formed on a plurality of needles of the knitting machine.
[0029] 17. The method of item 13, wherein the knitted component is formed such that the knitted component includes a plurality of embedded strands in at least a first portion of the knitted component, the plurality of embedded strands extending at an angle relative to one another between an outer perimeter of the upper and a common portion of the upper, the plurality of embedded strands having a higher tenacity than one or more yarns forming a remainder of the knitted component.
[0030] 18. An upper, comprising:
[0031] a knitted element defining at least a portion of an outer perimeter of the upper and having a plurality of courses extending between the outer perimeter of the upper and a throat area of the upper; and
[0032] at least one embedded strand being integral with the knitted element such that the at least one embedded strand forms a plurality of strand segments extending along respective ones of the plurality of courses of the knitted element between the outer perimeter and the throat area, wherein at least a portion of the plurality of strand segments extend at an angle relative to one another.
[0033] 19. The upper of item 18, wherein the at least one embedded strand is integral with the knitted element such that the plurality of strand segments are spaced apart along a length of the knitted element.
[0034] 20. The upper of item 18, wherein the plurality of strand segments includes a plurality of midfoot strand segments located in a midfoot area of the upper.
[0035] 21. The upper of item 18, wherein the plurality of strand segments includes a plurality of heel strand segments extending from the outer perimeter to the throat area.
[0036] 22. A knitted component for an upper, comprising:
[0037] a knitted element having an outer perimeter defining a lower edge and a pair of heel edges of the knitted component and an inner perimeter defining at least one of a throat opening and an ankle opening, the knitted element having a plurality of courses extending between the outer perimeter and the inner perimeter; and
[0038] one or more embedded strands being integral with the knitted element, the one or more embedded strands forming a plurality of strand segments extending between the outer perimeter and the inner perimeter within respective ones of the plurality of courses of the knitted element.
[0039] 23. The knitted component according to item 22, wherein the one or more embedded strands are integrally formed within the knitted component such that the plurality of strand segments are spaced apart courses along a length of the knitted component.
[0040] 24. The knitted component according to item 22, wherein the knitted component includes a forefoot region, a midfoot region, and a heel region, and the plurality of strand segments includes one or more of a forefoot strand segment, a midfoot strand segment, and a heel strand segment.
[0041] 25. The knitted component according to item 22, wherein the knitted component includes a medial side and a lateral side, and wherein the one or more embedded strands form a first plurality of strands on the medial side, and wherein the one or more embedded strands form a second plurality of strands on the lateral side.
[0042] 26. The knitted component according to item 25, wherein the knitted component includes a medial side and a lateral side, and wherein a number of strand segments of the plurality of strand segments on the medial side is the same as a number of strand segments of the plurality of strand segments on the lateral side.
[0043] 27. The knitted component according to item 25, wherein the knitted component includes a medial side and a lateral side, and wherein a number of strand segments of the plurality of strand segments on the medial side is different than a number of strand segments of the plurality of strand segments on the lateral side.
[0044] 28. The knitted component according to item 22, wherein the knitted component comprises a portion of an article of footwear.
[0045] 29. The knitted component according to item 22, wherein at least a portion of the plurality of courses are configured to form a set of wedge-shaped portions, each wedge-shaped portion having a first edge at the outer perimeter, a second edge at the inner perimeter, and at least one wedge-shaped course extending between the outer perimeter and the inner perimeter.
[0046] 30. The knitted component according to item 29, wherein the set of wedge-shaped portions are located in a forefoot region of the upper. BRIEF DESCRIPTION OF DRAWINGS
[0047] The subject matter of the present disclosure relates to knitted components, articles having the knitted components, and methods of making and using the knitted components, which are discussed in connection with the accompanying drawings, which are intended to be non-limiting examples, in which:
[0048] Figure 1 depicts a side view of an example article of footwear formed with a knitted component according to aspects herein;
[0049] Figure 2 depicted in FIG. 1 1 in accordance with aspects herein; Figure 1 a front perspective view of an article of footwear shown in FIG. 1 1 ;
[0050] Figure 3 depicted in FIG. 1 1 in accordance with aspects herein; Figure 1 a schematic view of an example knit component of the example article of footwear shown in FIG. 1 1 ;
[0051] Figure 4 depicted in FIG. 1 1 in accordance with aspects herein; Figure 1 a schematic view of another example knit component of the example article of footwear shown in FIG. 1 1 ;
[0052] Figure 5 depicted in FIG. 1 1 in accordance with aspects herein;
[0053] Figure 6 depicted in FIG. 1 1 in accordance with aspects herein; Figure 5 a front perspective view of an example article of footwear shown in FIG. 1 1 ;
[0054] Figure 7 depicted in FIG. 1 1 in accordance with aspects herein;
[0055] Figure 8 depicted in FIG. 1 1 in accordance with aspects herein;
[0056] Figure 9 depicted in FIG. 1 1 in accordance with aspects herein; Figure 8 another schematic view of a knit component with an embedded strand shown in FIG. 1 1 ;
[0057] Figure 10 depicted in FIG. 1 1 in accordance with aspects herein; Figure 8 another schematic view of a knit component with an embedded strand shown in FIG. 1 1 ;
[0058] Figure 11 depicted in FIG. 1 1 in accordance with aspects herein;
[0059] Figure 12 depicted in FIG. 1 1 in accordance with aspects herein; Figure 11 a top side view of an example article of footwear shown in FIG. 1 1 ;
[0060] Figure 13 depicted in FIG. 1 1 in accordance with aspects herein; Figure 11 a schematic view of an example knit component of the example article of footwear shown in FIG. 1 1 ;
[0061] Figure 14depicts a schematic view of another example knitted component having inlaid strands according to aspects herein;
[0062] Figure 15 depicts a schematic view of another example knitted component having inlaid strands according to aspects herein;
[0063] Figure 16 depicts a schematic view of another example knitted component having inlaid strands according to aspects herein;
[0064] Figure 17 depicts a block diagram of an example method of manufacturing a knitted component according to aspects herein;
[0065] Figure 18 depicts a block diagram of an example method of forming an article of footwear according to aspects herein;
[0066] Figure 19 depicts a knitted component having inlaid strands located in certain zones of the knitted component according to aspects herein;
[0067] Figure 20 depicts a knitted component having a substantially continuous inlay according to aspects herein;
[0068] Figure 21 depicts a knitted component with knitted portions having different knit constructions according to aspects herein;
[0069] Figure 22 depicts a knitted component having zones that are differentially constructed according to aspects herein;
[0070] Figure 23A depicts a knitting chart according to aspects herein; and
[0071] Figure 23B depicts a knitted component according to aspects herein being formed according to Figure 23A a knitting chart. DETAILED DESCRIPTION
[0072] The subject matter of the present disclosure is now described in detail with specific reference being made to the drawings. The subject matter of the present disclosure, however, can be implemented with or without the specific details described below. The following description and drawings are illustrative of the subject matter and are not intended to limit the scope of the subject matter. Furthermore, the subject matter of the present disclosure can be implemented in different ways, including as a method, apparatus, system, computer program product, and / or the like. In an example, one or more methods can be implemented as computer-executable instructions, which execute on one or more computer systems. The computer-executable instructions can be stored on one or more computer-readable media that can be accessed by a computer.
[0073] Conventional articles of footwear typically include an upper and a sole structure. The upper is secured to the sole structure and forms a void within the footwear article for comfortably and securely receiving a foot. The sole structure is secured to an underside of the upper so as to be positioned between the upper and a ground surface. For example, in some athletic footwear articles, the sole structure can include a midsole and an outsole. The upper of an article of footwear extends generally over instep and toe regions of the foot, along medial and lateral sides of the foot, and around a heel region of the foot. Access to the void within the upper is typically provided by an ankle opening in the heel region of the footwear, and can incorporate a lacing system to adjust the fit of the upper.
[0074] The upper can be formed from a variety of materials, including a knit textile having intermeshed loops of yarn. An upper formed from a knit textile can be breathable, lightweight, and flexible. However, traditional knit uppers can lack the structure provided by other types of materials. Thus, when an athlete moves their foot, a force can be exerted that pushes the foot into the traditional knit upper of the footwear sole structure. By keeping the foot constrained over the sole structure during movement, performance and comfort can be improved. Various components can be added to the knit upper through post-knitting processes to keep the foot constrained. However, such components added post-knitting can increase the weight of the upper, increase production time, and / or decrease the reusability of the upper. Further, the amount and location of the desired constraint can vary based on the activity. However, traditional knit processes for footwear often cannot achieve the desired or appropriate level of constraint and / or direction of constraint for certain activities, thus, additional components and / or post-knitting processes can be required to achieve the necessary or appropriate level of constraint.
[0075] In summary, and at a higher level, aspects of the present disclosure relate to a knitted component for an upper that forms at least a forefoot region and a midfoot region, either or both of which can include one or more radially extending courses of knitting that extend between an outer perimeter and a common portion. The common portion of the knitted component can be a central region along or adjacent to at least a portion of a longitudinal axis of the knitted component, such as a throat region. Because the courses of knitting in the midfoot region and / or the forefoot region extend between different sections of the outer perimeter and the common portion, at least some of the radially extending courses can not extend parallel to one another, or in other words, can extend at an angle relative to one another. However, immediately adjacent course portions (e.g., such as immediately adjacent and length-identical or length-different course portions) can be substantially parallel. In some aspects, the knitted component includes a heel region that is integrally knitted with the midfoot region and includes one or more courses of knitting that also extend between the outer perimeter and the common portion. In one example, the heel portion can include a heel cushion or cushioning. In some aspects, the radially extending courses of knitting in the knitted component that forms the upper can encircle at least a portion of a wearer’s foot by extending between the common portion and around a perimeter of one or more of the forefoot region, the midfoot region, and the heel region.
[0076] In one example, the knitted component can include one or more courses of knitting formed from an outer perimeter of the knitted component and extending toward an inner perimeter of the knitted component, the courses being formed in a continuous process performed by a knitting machine. The formed courses can have different lengths, for example, forming a wedge in one instance.
[0077] In comparison to courses in conventional knitted articles, the radially extending courses in the knitted components described herein can be substantially aligned with a greater number of lines of constraint, which can provide multidirectional lines of constraint and stability. As a result, an upper having radially extending courses can allow a wearer to make more acute turns and / or sharp turns with reduced slippage, sliding, or lateral displacement. Furthermore, aspects of the knitted components discussed herein can be used to increase strength. For example, this can be provided by using yarns with high tenacity, high resistance to stretch, and / or by using specific knit structures that increase resistance to stretch along desired lines of constraint to improve performance for specific activities or movements. In this way, an upper having radially extending courses can provide stability and lines of constraint in different directions.
[0078] In some aspects, tensile elements can be incorporated into the knit components (e.g., embedded into the strands), for example, to increase reinforcement and / or enhance constraint. For example, high tenacity yarns (e.g., polyester yarns, such as inelastic polyester yarns) can be incorporated (e.g., embedded or knitted) into the knit components, uppers, and articles of footwear described herein to impart reinforcement in certain directions (e.g., along the lines of constraint). For example, the tensile elements can each have a configuration of multi-filament yarns, filaments (e.g., mono-filament yarns), threads, ropes, webbings, cables, or chains. The tensile elements can include materials having certain properties to increase the strength of the knit component in the areas having the tensile elements. For example, the tensile elements can include yarns having high tenacities, such as tenacities greater than 5 grams per denier. In some embodiments, the tenacities of the tensile elements can be greater than the other yarns of the knit component. In one example, the tensile elements are formed of high tenacity polyester yarns, such as Gral produced by Coats Group PLC. In another example, the tensile elements are formed of high tenacity nylon yarns. Further, in some examples, the tensile elements can exhibit greater resistance to stretching than the rest of the knit component and can be formed of various engineering filaments used for high tensile strength applications, including glass, aramids (e.g., para-aramids and meta-aramids), ultra-high molecular weight polyethylene, and liquid crystal polymers.
[0079] In some aspects, the knit component can include a plurality of wedge-shaped portions radially diverging from a common portion. In one example, the plurality of wedge-shaped portions are included in a forefoot region. Further, in some examples, the plurality of wedge-shaped portions are configured to form an arcuate shape at the forefoot region such that the plurality of wedge-shaped portions radially diverge from the common portion and extend around an outer perimeter of the forefoot region.
[0080] In some aspects, the knit component can include a plurality of radially diverging portions positioned around a common portion, wherein each of the plurality of radially diverging portions includes a plurality of courses.
[0081] In one example, the radially extending course extends between the common portion and around a top of the forefoot region. For example, the radially extending course can diverge from the common portion and extend around a top of the forefoot region. Likewise, one or more radially extending courses in the forefoot region can be configured to substantially align with one or more constraint lines in the forefoot region (e.g., in the toe region). Thus, in one example, at least one radially extending course substantially aligns with at least one constraint line in the forefoot region and / or the toe region. Substantial alignment of a radially extending course with multiple constraint lines in the forefoot region can increase the constraint and stability in the forefoot region. As a result of the improved stability and constraint that can be provided by the radially extending course, the amount of added reinforcement can be reduced, which in turn improves breathability and enhances comfort.
[0082] In further aspects, the knit component herein can include one or more load bearing elements, e.g., incorporated as embedded strands. The embedded strands can each form a plurality of strand segments that each extend at least partially between the outer perimeter of the knit component and the common portion. The strand segments can remain connected and / or looped at the common portion and / or the outer perimeter. Each embedded strand can be formed of a material suitable to provide additional support, such as a strand having a greater thickness or weight, greater resistance to stretching, and / or higher tenacity than the yarns that interloop together to form the remainder of the knit component. Thus, the one or more embedded strands can be additional, alternative, or different structures for providing constraint along the desired constraint lines. In different aspects, the embedded strands that can be used to impart such properties can include engineered filaments for high tensile strength applications, e.g., including glass, aromatics (e.g., para- and meta- aramid), ultra-high molecular weight polyethylene, liquid crystal polymers, etc.
[0083] In some aspects, one or more of the density of the embedded strand segments, the location of the embedded strand segments, the orientation of the embedded strand segments, and the location of the common portion (which can affect the orientation and / or angle of the strand segments) can vary based on the desired directionality and / or degree of constraint. The degree of constraint can be the resistance to stretching, elongation, and / or expansion along a radial direction extending from the common portion toward the perimeter or edge. Further, the density, spacing, and / or number of embedded strand segments can vary across different portions of the knit component and / or upper incorporating the knit component to impart localized properties.
[0084] In further aspects herein, a method of manufacturing a knitted component for an upper is provided. Forming radially extending knitted courses (and in certain aspects, embedded strands) through the upper can be achieved through a knitting process that includes knitting at least a portion of one side of the upper (e.g., a lateral side or a medial side) prior to knitting any other side of the upper. For example, a first midfoot region can be knitted on a knitting machine on a lateral side or a medial side. Then, a forefoot region can be knitted on the knitting machine, followed by knitting a second midfoot region on the other side of the upper (e.g., the opposite one of the lateral side or the medial side on which the first midfoot region was knitted). Further, the manufactured knitted component can include a combination of full-length knitted courses and partial-length knitted courses that together form an organic shape of a curved upper while maintaining the radial orientation of the knitted courses.
[0085] For example, to create a curved shape in a knitted component (e.g., a forefoot region of an upper), a plurality of "wedges" can be formed using a knitting machine. Each "wedge" is formed from a series of knitted courses formed on the knitting machine, where the length of each knitted course gradually increases in one series of sequentially knitted rows, and then the length gradually decreases in another series of sequentially knitted rows to form a wedge-like shape. The resulting "wedge" has a particular geometry that can be determined by the change in length of the sequentially knitted rows and / or the change in the number of sequentially knitted rows. As a result of creating the "wedges," the knitted component can transition direction, e.g., define a curved or arcuate geometry. This can be used, for example, to form a curved forefoot region of an upper formed from a knitted component produced on a knitting machine.
[0086] In one aspect, a method of forming a knitted component for an upper includes forming the knitted component on a knitting machine with a plurality of wedges, where the plurality of wedges form a forefoot region and / or a midfoot region. In one example of the method, a medial region or a lateral region is knitted on the knitting machine, then subsequently a forefoot region is knitted on the knitting machine such that the forefoot region includes a curved shape, then subsequently the other of the medial region and the lateral region is knitted on the knitting machine.
[0087] According to the disclosed knitting method, the same feeders used to form the outer side of the knitted component can be used to form the inner side of the knitted component. Further, at least a subset of the needles used to form the outer side can be used to form the inner side. The method can further include integrating the inlaid strands by using a combination feeder to inlay the strands within the courses. The inlaid strand segments on the outer side can be formed with the same combination feeder as the inlaid strand segments on the inner side. Thus, a knitted component having radially extending courses and inlaid strands can be formed while having a smaller footprint on the knitting machine compared to traditional processes of integrally knitting a shoe upper. This can free up space and resources for simultaneously knitting another separate article, such as a knitted component for a second shoe upper.
[0088] As noted above, aspects of the present disclosure relate to an article of footwear formed at least partially from a knitted textile, or aspects thereof, or an article of apparel formed from such a knitted textile. In one example, aspects relate to an upper formed at least partially from a knitted component. As used herein, the term "upper" refers to a component of footwear that extends over the instep and toe areas of the foot, along the medial and lateral sides of the foot, and around the heel area of the foot to form a void for receiving the foot of the wearer. Illustrative, non-limiting examples of uppers can include uppers incorporated into basketball shoes, cycling shoes, cross-training shoes, global football (soccer) shoes, American football shoes, bowling shoes, golf shoes, hiking shoes, ski or snowboard boots, tennis shoes, running shoes, walking shoes, and the like. Further, in other aspects, the upper can also be incorporated into non-athletic shoes, such as dress shoes, loafers, and sandals. Thus, aspects herein are applicable to a variety of footwear types. Although the figures can illustrate an article of footwear intended for wear on only one foot of the wearer (e.g., the right foot), a person skilled in the art will recognize that a corresponding article of footwear for the other foot (e.g., the left foot) will be a mirror image of the right article of footwear, unless otherwise noted.
[0089] Positional terminology used to describe articles of footwear or aspects thereof (such as top, bottom, front, side, back, superior, inferior, lateral, medial, right, left, interior, exterior, inward-facing, and outward-facing, etc.) is with reference to the article of footwear or upper as intended to be worn (with the wearer standing upright such that the wearer’s foot is in the foot-receiving cavity and the wearer’s ankle or leg extends through the ankle opening). For example, an “upward-facing surface” and / or “upper surface” of an upper refers to a surface that is oriented in the “superior” anatomical direction (i.e., toward the wearer’s head) when the article of footwear is worn by a wearer. Similarly, the directional terms “downward” and / or “inferior” refer to the anatomical direction “inferior” (i.e., toward the ground and away from the wearer’s head). “Anterior” means “forward” (e.g., toward the toes), and “posterior” means “rearward” (e.g., toward the heel). “Medial” means “toward the body’s midline,” and “lateral” means “away from the body’s midline.” A “longitudinal axis” refers to a centerline of the article that extends between a heel region and a toe region. Similarly, a “longitudinal length” refers to the length of the article along the longitudinal axis, and a “longitudinal direction” refers to the direction along the longitudinal axis. It should be appreciated, however, that the use of positional terminology is not dependent on the actual presence of a person for purposes of explanation.
[0090] The terms “knit component” and “knit element” refer to a textile formed from at least one yarn that is manipulated (e.g., with a knitting machine) to form a plurality of interlooped loops defining courses and wales. The term “course” as used herein refers to a major horizontal row of knitted loops produced by adjacent needles during the same knitting cycle (in a standing textile knitted on a knitting machine). The course can include one or more stitch types, such as knit stitches, missed stitches, tuck stitches, transfer stitches, rib stitches, etc., as these terms are known in the knitting arts. The term “wale” as used herein is a major vertical column of interlooped or interlooping knitted loops generally produced by the same needle at successive (but not necessarily all) courses or knitting cycles.
[0091] The term “integrally knitted” as used herein can mean a knit component having yarn of one or more knitted courses in a first region or area interlooped with one or more knitted courses of another region or area. The interlooping can be through simple knit stitches, tuck stitches, held stitches, float stitches, missed stitches, etc. In this manner, regions that are integrally knitted together can have a seamless transition.
[0092] As used herein, the term "inlaid strand" can refer to an elongated piece of material, such as a yarn, cable, filament, monofilament, multifilament, and / or fiber, or any combination thereof, that extends through a course formed by one or more other strands forming a loop. The inlaid strand can include a loop at each end to anchor the strand into the knitted element, but can also generally extend through the course without interlooping with another strand. In one example, the inlaid strand can interloop with the loops of another strand forming the course.
[0093] As used herein, the term "radially extending" refers to the orientation of an elongated structure, such as a knitted course and / or inlaid strand segment and / or wedge portion, that radiates outward from a common portion of the knitted component. In particular, a knitted course and / or inlaid strand can radially extend if it extends at least partially between the common portion and an outer perimeter of the knitted component. In this manner, the course and / or strand segment can radiate outward from the common portion toward the outer perimeter, rather than, for example, extending continuously across the body of the knitted component from an outer lateral edge of the outer perimeter to an inner lateral edge of the outer perimeter (although such a configuration can exist in combination with a radially knitted structure forming an upper in aspects contemplated herein). Further, the structure of the knitted component can radially extend from the common portion when laid flat in a planar configuration after knitting, although it is also contemplated that determining whether a structure radially extends can be based on the orientation of the structure toward the common portion after the knitted component is folded into the shape of an upper or portion of an upper.
[0094] As used herein, the term "common portion" refers to a certain region of a knitted component from which multiple similar structures, for example, multiple courses or multiple inlaid strand segments, extend toward and / or away from. With such a configuration, a course or inlaid strand segment can extend from an outer perimeter of the knitted component to a single common portion of the knitted component, rather than extending from the outer perimeter to different portions. The common portion is spaced apart from the outer perimeter, and in various aspects, can be relatively centrally located within the knitted component. In this manner, the common portion can enclose or be directly adjacent to a longitudinal axis of the knitted component. In some examples disclosed herein, the common portion can comprise or be a portion of a throat region.
[0095] As used herein, the term "throat region" refers to a region on the top (facing upward) side of an upper that generally extends between the ankle opening and the forefoot region. When formed into the shape of an article of footwear, the throat region can include an opening formed between the lateral side and the medial side of the upper, and in certain aspects, the throat region can include a tongue that extends across the opening in the throat region. In some aspects, the throat region does not have an opening, but rather includes a continuous, unitary knitted region of the knitted component that extends between the medial side and the lateral side.
[0096] As used herein, the term "perimeter" refers to the area that forms the boundary of the object in question. For example, the perimeter of a knitted component is the area extending along the boundary of that structure. An "outer perimeter" can refer to a portion of the perimeter of a knitted component that, once formed into a footwear article, forms the biteline between the upper and sole structures, and / or the seam between the two ends of the outer perimeter. Conversely, an "inner perimeter" can refer to a portion of the perimeter of a knitted component that, once formed into a footwear article, defines openings, such as openings in the throat area and / or ankle openings. A perimeter (outer perimeter or inner perimeter) can refer to the edge of a knitted component or the peripheral area adjacent to that edge.
[0097] Several aspects are described below with reference to the accompanying drawings, in which the same elements are generally identified by the same numbers. The relationship and function of the various elements in these aspects can be better understood by referring to the following detailed description. However, the aspects are not limited to those illustrated in the drawings or explicitly described below. It should also be understood that the drawings are not necessarily to scale, and in some cases, details not essential for understanding the aspects disclosed herein, such as conventional assembly, may have been omitted. Furthermore, various measurements are provided throughout this document. Unless otherwise stated, the terms “about,” “approximately,” or “substantially” mean within ±10% of the indicated value for the purposes of measurement. For example, a value can be a length, angle, radial direction, linear direction, or unit of measurement, etc.
[0098] According to one aspect of this article, Figure 1 and Figure 2 Side and front perspective views of footwear article 100 and its components are depicted. Footwear article 100 includes a sole structure 102 and an upper 104. The upper 104 is attached to and extends from the sole structure 102, forming a foot receiving cavity 106 between the sole structure 102 and the upper 104. The area of footwear article 100 where the sole structure 102 connects to the upper 104 may be referred to as the interlocking line 106. The upper 104 can be fixedly attached to the sole structure 102 using any suitable technique, such as by using adhesives, by sewing, by welding, etc. It is envisioned that the upper 104 may extend partially or completely around the wearer's foot, may extend under the wearer's foot, and / or may be integral with the sole. Furthermore, a sockliner may or may not be used; the sockliner may be referred to as strobel (midsole fabric). The sockliner may include various materials, including textiles, leather, foam, and / or other types of materials. As an additional feature, heel counters can also be used in footwear items.
[0099] The article of footwear 100 (and / or components thereof) can be divided into one or more regions (which can also be referred to as“zones” or“parts”). For example, in the anterior-to-posterior direction, the article of footwear 100 (and / or components thereof) can be divided into (and / or include) a forefoot region 108, a midfoot region 110, and a heel region 112. The forefoot region 108 of the article of footwear 100 can correspond with the anterior part of the foot, including the toes and the joint connecting the metatarsal bones with the phalanges. The midfoot region 110 of the article of footwear 100 can correspond with the arch area of the foot. The heel region 112 of the article of footwear 100 can correspond with the posterior part of the foot, including the heel bone. In the medial-to-lateral direction, the article of footwear 100 (and / or components thereof) can be divided into a lateral side 114 and a medial side 116, both of which extend through the forefoot region 108, the midfoot region 110, and the heel region 112. More specifically, the lateral side 114 corresponds with the lateral side of the foot (i.e., the side that faces away from the other foot) when the article of footwear 100 is worn, while the medial side 116 corresponds with the medial side of the foot (i.e., the side that faces toward the other foot) when the article of footwear 100 is worn. The lateral side 114 and the medial side 116 are divided by a longitudinal axis 118. These regions 108, 110, and 112, and sides 114 and 116 are not intended to demarcate precise areas of the article of footwear 100, but rather are intended to represent general areas of the article of footwear 100 to aid in understanding various descriptions provided herein.
[0100] The sole structure 102 generally extends between the foot and the ground when the article of footwear 100 is worn. The sole structure 102 can include a number of components, such as an outsole, a midsole, and an insole or a cushioning layer. Various materials can be used to form the sole structure 102, such as rubber, ethylene vinyl acetate (EVA), thermoplastic polyurethane (TPU), thermoplastic elastomer (e.g., a polyether block amide), or similar suitable materials. The sole structure 102 can also include various other elements, such as heel counters and toe caps. The sole structure 102 can include various other features to attenuate forces, enhance stability, and / or provide traction, such as treads as understood by those skilled in the art.
[0101] The upper 104 defines a void within the article of footwear 100 for receiving and securing the foot relative to the sole structure 102. An entrance to the void is provided by an ankle opening 125 located in at least the heel region 112. The ankle opening is defined by an ankle collar 128. The upper 104 also includes a throat region 126 disposed between the ankle opening 125 and the forefoot region 108 in the midfoot region 110. The throat region 126 can be configured to cover a top side of the wearer's foot and thus form a portion of the top side (or overfoot region) of the upper 104 between the lateral side 114 and the medial side 116. The article of footwear 100 can also include a closure system in the throat region 126 to adjust the foot-receiving void. In this manner, the closure system can be used to, for example, secure the article of footwear 100 to the wearer's foot and / or release the article of footwear 100 from the wearer's foot. Example closure systems include a lace 132 (e.g., as shown in FIGS. 1-2), a strap, a band, a cable, a cord, a ratchet mechanism, a hook-and-loop fastener, and the like. Figure 1 and Figure 2
[0102] Still looking at Figure 1 and Figure 2 At least a portion of the upper 104 can be formed from at least one knitted component 140, such as, for example, by a weft-knitting process on a flat knitting machine. In some aspects, the entire or substantially the entire upper 104 can be formed from the knitted component 140. The knitted component 140 can include various types of yarns that impart different properties to separate regions of the upper 104. That is, one region of the knitted component 140 can be formed from a first type of yarn that imparts a first property or first set of properties, and another region of the knitted component 140 can be formed from a second type of yarn that imparts a second property or second set of properties. With this configuration, properties can be varied throughout the upper 104 by selecting particular yarns for different regions of the knitted component 140. The properties imparted to a region of the knitted component 140 by a particular type of yarn depend in part on the materials of the various filaments and fibers that form the yarn. For example, cotton can provide a soft hand feel, a natural aesthetic, and biodegradability. Elastane and stretch polyester can both provide significant stretch and recovery properties, while stretch polyester can provide recyclability. Rayon can provide a high sheen and moisture absorption. Wool can provide a high moisture absorption in addition to thermal insulation properties and biodegradability. Nylon is a durable and abrasion-resistant material with a relatively high strength. Polyester is a hydrophobic material that also provides a relatively high durability. In addition to the materials, other aspects of the yarns selected for the knitted component 140 can influence the properties of the upper 104. For example, the yarns that form the knitted component 140 can be monofilament yarns or multifilament yarns. The yarns can also include individual filaments that are each formed from a different material. Further, the yarns can include filaments that are each formed from two or more different materials, such as bicomponent yarns with filaments having a sheath-core configuration or two halves formed from different materials. Different degrees of twist and crimp, as well as different deniers, can also influence the properties of the upper 104. Thus, both the materials that form the yarns and other aspects of the yarns can be selected to impart various properties to separate regions of the upper 104. Depending on the different aspects contemplated herein, the yarns can be selected based on different properties (e.g., tensile strength, tenacity, elasticity, cushioning, etc.).
[0103] The knit component 140 can be formed as a single integral one-piece element during a knitting process, such as a weft knitting process or another knitting process. Additional elements, such as an underfoot portion and / or a heel element (including but not limited to a heel cushion, a heel stabilizer, or other elements or components) can be integrally formed with the upper 104 as a one-piece unitary structure. Alternatively, one or more such additional elements can be formed separately from the upper 104, which can then be subsequently attached, secured, or otherwise assembled as desired. Forming the upper 104 with a knit component can provide the upper 104 with advantageous properties, including but not limited to a certain degree of elasticity, breathability, flexibility, strength, moisture absorption, weight, abrasion resistance, and / or combinations thereof. Moreover, forming the upper 104 from an integrally knit knit component can form various features and structures of the upper 104 without requiring significant additional manufacturing steps or processes, thereby improving production efficiency.
[0104] The knit component 140 can include one or more radially extending courses. That is, the knit component 140 can include knit courses that extend between an outer perimeter of the knit component 140 (which can form the bite line 106 or be adjacent to the bite line 106 when the knit component 140 is formed into the upper 104 and joined to the sole structure 102) and a common portion of the knit component 140. The common portion can be a certain region of the knit component 140 toward which some or substantially all of the courses extend when the knit component 140 is formed into the shape of the upper 104. In some aspects, the common portion includes or is along a portion of the longitudinal axis 118. In some aspects, the common portion is adjacent to the longitudinal axis 118. For example, the common portion can include the throat area 126, which extends along the longitudinal axis 118. As described further with respect to FIGS. 6-8, the common portion can include a portion of the knit component 140 that is not radially extending. Figure 3 As described further, the radially extending courses within the knit component 140 can result in courses that align with a number of different constraint lines, such that the knit courses can at least partially provide a constraint around an entire foot or a portion of a foot of a wearer.
[0105] Figure 3A schematic depiction of a knitted component 140 having radially extending courses, such as courses 142a-142e, which can be collectively referred to as "courses 142," is depicted. Each course 142 is depicted as having a simplified form of a knitted loop, and it should be understood that these loops do not necessarily represent the stitch sequence used. For example, courses 142 can include other types of stitches, such as float stitches, tuck stitches, transfer stitches, etc. Similarly, only some of the courses are depicted throughout knitted component 140 as representative of the various directions in which courses 142 can extend (for clarity), and thus it should be understood that there can be additional courses located between courses 142 depicted in Figure 3 the middle that radially extend from a common portion of knitted component 140 in a similar manner as described below and shown in Figure 3 addition, courses 142 depicted in the middle can also be interconnected such that courses 142 transition between one another at the common portion and / or outer periphery, rather than being distinct from one another. Figure 3
[0106] Courses 142 extend from outer periphery 124 to a common portion or region. In the example depicted in Figure 3 the middle, the common portion is throat region 126, which can include a tongue component (such as tongue 130 in Figure 1 and Figure 2 ), an opening for the tongue component, and / or an inner periphery 134 of the knitted component that defines a space through which the tongue component can extend. In some aspects, throat region 126 is knitted continuously from lateral side 114 to medial side 116, such that there can be no opening or space for a tongue component.
[0107] Forefoot region 108, midfoot region 110, and heel region 112 can each include radially extending courses that extend in different directions, such that at least some of the courses are not parallel to one another. For example, at least some forefoot courses in forefoot region 108, such as course 142c, extend in a direction that is not parallel to midfoot courses in midfoot region 110, such as course 142b. In other words, at least some of the courses, including forefoot course 142c and midfoot course 142b, can be angled relative to one another, where the angle is greater than 0 degrees and less than 180 degrees.
[0108] Accordingly, the courses 142 can extend in different directions, which can represent different potential lines of constraint or angles. In certain aspects, the various directions in which the courses extend can effectively encompass 360 degrees around the center of the wearer's foot. These lines of constraint can represent where the foot can be constrained, which can be achieved through various knit structures. In certain aspects, greater constraint is achieved by using yarns with higher tensile strength and / or higher resistance to stretch for courses along certain lines of constraint, using certain knit stitches (such as floats) to reduce stretch in courses along certain lines of constraint, or a combination thereof.
[0109] In example aspects, the knit component 140 includes courses that are aligned parallel or substantially parallel to a first diagonal line of constraint (illustrated by the first axis 121), and includes courses that are aligned parallel or substantially parallel to a second diagonal line of constraint (illustrated by the second axis 123) that intersects the first line of constraint in the common portion of the knit component 140. The first axis 121 can extend from a portion of the knit component 140 configured to cover the first metatarsal bone of the wearer to the heel region 112 on the lateral side 114, and the second axis 123 can extend from a portion of the knit component 140 configured to cover the fifth metatarsal bone of the wearer to the heel region 112 on the medial side 116. These axes 121 and 123 can collectively form an X-shape, and can represent lines of constraint that can improve the stability of the wearer's foot within the upper for many types of movement, including turning or changing direction of movement, lateral movement, forward movement, and backward movement. Accordingly, constraining the wearer's foot within the upper 104 by restricting stretch or otherwise providing support in courses along these axes 121 and 123 can enhance the performance of the article of footwear 100.
[0110] The knit component 140 having radially extending courses 142 can be formed through a radial knitting process in which the lateral side 114 and the medial side 116 of the knit component 140 are formed sequentially, rather than simultaneously. As Figure 3As shown, the knit component 140 is formed by the knitting machine 162 by knitting from the heel region 112 on the medial side 116 of the knit component 140, along the knit direction 144, from the heel region 112 to the forefoot region 108, and then knitting the lateral side 114 of the knit component 140 beginning at the forefoot region 108 and ending at the heel region 112 on the lateral side 114, as shown by the knit direction 144. In this manner, the knit component 140 can be formed by knitting the medial side 116 (or at least a plurality of courses on the medial side 116), knitting the forefoot region 108 after the courses on the medial side 116, and knitting the lateral side 114 (or at least a plurality of courses on the lateral side 114) after knitting the forefoot region 108.
[0111] In other aspects, the knit component 140 can be formed with a similar, but opposite, knit direction. For example, the knit component 140 can be formed by knitting the lateral side 114 (or at least a plurality of courses on the lateral side 114), knitting the forefoot region 108 after the courses on the lateral side 114, and knitting the medial side 116 (or at least a plurality of courses on the medial side 116) after knitting the forefoot region 108.
[0112] This process for making the knit component 140 can be performed on the knitting machine 162, which can be an automatic knitting machine. In example aspects, the knitting machine 162 includes the front needle bed 161 and the back needle bed 163 shown in Figure 3 and similarly shown in Figure 4 (e.g., where the knitting machine 462 has needle beds 461, 463), which are each depicted as simplified schematic illustrations. Thus, in example aspects, the knitting machine (and other knitting machines described herein) can be a flat knitting machine, such as a flat V-bed knitting machine, having a front needle bed 161 and a back needle bed 163. In various aspects, the knit component 140 can be formed from needles from a single needle bed or from needles from two needle beds.
[0113] According to this knitting process that forms the lateral side 114 and the medial side 116 sequentially, at least some of the needles used to form the lateral side 114 are also used to form the medial side 116. In this manner, a fewer number of needles on the knitting bed of the knitting machine 162 can be needed to form the knitted component 140 compared to a traditional knitting process that forms the heel portion and / or the midfoot portion of the lateral side 114 and the medial side 116 simultaneously. Additionally, the same feeders can be used for the yarn formation of both the lateral side 114 and the medial side 116, rather than doubling the feeders for each side. In this manner, the disclosed knitting process can make more needles and / or feeders on the knitting machine 162 available to knit a separate article at the same time that the knitted component 140 is being knitted, such as another knitted component for another upper.
[0114] Additionally, as Figure 3 shown, the knitted component 140 is formed to have radially extending courses 142 includes forming full length and partial length knitted courses. Full length knitted courses, such as course 142a, can extend from one edge of the knitted component 140 (e.g., at the outer perimeter 124) to another edge of the knitted component 140 (e.g., at the inner perimeter 134 in the throat area 126). Partial length knitted courses, such as courses 142d and 142e, can not extend between two edges of the knitted component 140. One or both ends of a partial length knitted course can end before reaching an edge of the knitted component 140. However, partial length knitted courses, such as courses 142d and 142e, can still be considered radially extending because these courses extend in a direction from the outer perimeter 124 toward a common portion (e.g., the throat area 126). Forming partial length knitted courses that are distributed between full length knitted courses can create shapes and dimensions in the knitted component 140 while also enabling the courses to radially extend.
[0115] Figure 4 Another example knitted component 440 is depicted that can form an upper for an article of footwear, such as an upper 104 for an article of footwear 100 as shown in Figure 1 and Figure 2 . Except as otherwise noted or depicted in Figure 4 , any feature of the knitted component 140 shown in Figures 1-3 can apply to the knitted component 440, and any feature of the upper 104 and the article of footwear 100 can apply to an upper and an article of footwear that includes the knitted component 440.
[0116] In Figure 3 , an entire side (e.g., the medial side 116) can be knitted before knitting another side (e.g., the lateral side 114). However, in other aspects, such as in Figure 4As shown in FIG. 4, the zones of the knitted component where the knitting process begins and ends can be different. For example, in Figure 4 knit direction 444 still generally takes on an arcuate or bowed shape similar to knit direction 144, but knit direction 444 begins at a zone of the heel region 412 of one lateral side and ends at an adjacent region (e.g., the midfoot region 410) of the same lateral side. Thus, the zone 420 where knitting can begin (or end if knit direction 444 is reversed) can form the heel region 412 on the lateral side 414 after the edges of the knitted component 440 are joined to form the upper. However, in this configuration, the order of description can be maintained because the lateral side 414 and the medial side 416 are not knitted simultaneously. Rather, the knitting order can proceed as follows: knitting the zone 420 of the heel region 412 that is laterally positioned on the lateral side 414, then knitting the remaining portion of the heel region 412 that forms the medial side 416, then knitting the midfoot region 410 on the medial side 416, then knitting the toe region 408, and then knitting the midfoot region 410 on the lateral side 414. Thus, the upper formed by the knitted component 440 can have a seam on the lateral side 414 rather than in the center of the heel region 412. Figure 3
[0117] The knitted component 440 can still have radially extending courses 442 that extend from the outer perimeter toward a common portion of the knitted component 440, which can be the throat region 426 defined by the inner perimeter 434. After the knitted component 440 is formed into an upper, such as the upper 104 of Figure 1 and Figure 2 The radial orientation of the courses can be based on this knitted component 440. That is, regardless of where the knitting process begins, the courses can extend between the outer perimeter 424 and the common portion (e.g., from the outer perimeter 424 to the common portion). When the knitted component 440 is laid flat after the knitting process, there can be courses that do not extend to the common portion, such as certain courses in the zone 420. However, once the knitted component 440 is formed into the shape of an upper by joining the zone 420 to the remaining portion of the lateral side 414, the courses in the zone 420 can be oriented such that these courses do extend from the outer perimeter 424 to the common portion (e.g., the throat region 426).
[0118] Figure 5 and Figure 6 depict side and front perspective views, respectively, of an article of footwear 500 and components thereof according to aspects herein. The article of footwear 500 can include aspects with respect to Figure 1 and Figure 2 Any features described in the footwear article 100 shown herein. Thus, footwear article 500 includes a sole structure 502 and an upper 504, the upper 504 being connected to the sole structure 502 and forming a foot receiving cavity.
[0119] The upper 504 defines a cavity within the footwear article 500 for receiving and securing the foot relative to the sole structure 502. The entrance to the cavity is provided by an ankle opening 525 located within at least the heel region 512. The upper 504 may also include a throat region 526 disposed in the midfoot region 510 between the ankle opening 525 and the forefoot region 508. The throat region 526 may be configured to cover the top side of the wearer's foot and thus form part of the top side (or upper foot region) of the upper 504 between the outer side 514 and the inner side 516. In the depicted aspect, the throat region also includes a tongue portion, such as a tongue portion 530. The footwear article 500 may also include a closure system (such as laces 532) in the throat region 526 to adjust the foot receiving cavity.
[0120] At least a portion of the upper 504 may be formed from at least one knitted component 540, which may be formed as a single, integral, one-piece element during the knitting process. Unless otherwise stated, Figure 5 The knitted component 540 shown may have the following characteristics: Figures 1-3 Any features described in the knitted component 140 shown. Therefore, the knitted component 540 may form a forefoot region 508 and a midfoot region 510. In another embodiment, the knitted component 540 also forms a heel region 512. In this example, regions 508, 510, and 512 may be knitted together integrally, for example, in a single knitting process. Furthermore, the knitted component 540 may have radially extending knit rows extending from the outer perimeter 524 of the knitted component 540 to a common portion of the knitted component 540. The common portion may include at least a portion of the throat region 526, which may extend along the longitudinal axis 518 of the knitted component 540.
[0121] The knitting component 540 may also include one or more insert yarns defining multiple yarn segments 522. The insert yarns pass between the loops of the base knitting element (which may be referred to herein as a knitting element). Figure 7 An enlarged schematic diagram of a knitted component 540 having embedded ply 520 is depicted. Specifically, the knitted component 540 includes a knitted element 531 and embedded ply 520. The knitted element 531 includes rows (such as rows 542) formed by interlocking loops of one or more yarns (such as yarn 538), and the embedded ply 520 extends through one or more knitted rows of the knitted element 531 by passing between the respective loops within the knitted element 531.
[0122] The knit element 531 can include various types of yarns that impart different properties to the regions of the upper 504, as previously described with respect to the knit component 140 of Figures 1-3 In addition, the configuration of the inlaid strand 520 can vary significantly as well, as can the yarns that form the knit element 531. The inlaid strand 520 can be a yarn, or can have a configuration of, for example, a filament (e.g., monofilament), string, cord, webbing, cable, or chain.
[0123] The inlaid strand 520 can be thicker than the yarns that form the knit element 531. In some configurations, the inlaid strand 520 can have a thickness that is significantly greater than the yarns of the knit element 531, for example, having a width that is greater than at least 25%, at least 50%, at least 75%, or at least 100% of the width of the yarns of the knit element 531. The cross-sectional shape of the inlaid strand 520 can be circular, but can also be triangular, square, rectangular, oval, or irregular in different aspects. Also, the material that forms the inlaid strand 520 can include any of the materials used for the yarns within the knit element 531, such as cotton, spandex, polyester, rayon, wool, and / or nylon. As noted above, the inlaid strand 520 can exhibit greater resistance to stretching than the knit element 531 and / or its yarns. Thus, suitable materials for the inlaid strand 520 can include, among others, various engineering filaments used for high tensile strength applications, including glass, aramid (e.g., para-aramid and meta-aramid), ultra-high molecular weight polyethylene, and liquid crystal polymer. As another example, braided polyester string can also be used as the inlaid strand 520. The inlaid strand can also have a higher tenacity and / or tensile strength than the yarns of the knit element 531, measured using the same test (such as ASTM D3822) under the same conditions.
[0124] As noted, the inlaid strand 520 is located within the knit structure of the knit element 531 (in a configuration that can have a single textile layer in the region of the inlaid strand 520), and between the inward-facing surface and the outward-facing surface. Thus, when the knit component 540 is incorporated into the article of footwear 500, the inlaid strand 520 is located between the outer surface and the inner surface of the upper 504. In particular, and as Figure 7As shown, the knit element 531 includes yarns 538 that form a plurality of interlooped loops defining a plurality of courses and wales. The inlaid strand 520 extends along one of the courses, such as course 542, and alternates between being behind (a) loops formed by the yarns 538 and (b) loops formed by the yarns 538. In effect, the inlaid strand 520 extends through the structure formed by the knit element 531. While the yarns 538 form each of the courses in this configuration, additional yarns can form one or more of the courses or can form a portion of one or more of the courses. In some aspects, the knit component 540 includes a double-knit textile construction formed by yarns that are switched between needles on two beds. Like the inlaid strand 520, an inlaid strand can extend generally between the surfaces formed by loops on the two beds. In some aspects, segments of the inlaid strand 520 can extend behind and / or in front of loops formed on the two beds.
[0125] Figure 7 The inlaid strand 520 in the knit component 540 can represent at least a portion of the strand segment 522 depicted in Figure 5 and Figure 6 Each strand segment 522 extends along a course in the knit element 531 that forms the knit component 540, and thus, extends radially between an outer perimeter 524 of the knit component 540 and a common portion, which can be a throat area 526. Like the knit courses described with respect to the knit component 140, the strand segment 522 can extend in various directions from the outer perimeter 524 to the common portion, e.g., in different aspects, in any one or combination of the forefoot area 508, the midfoot area 510, and / or the heel area 512. In this way, the inlaid strand 520 forms a plurality of strand segments 522 that radially fan out from the common portion, e.g., the throat area 526 or an outline thereof as shown in Figure 6 Moreover, with this configuration, one or more inlaid strand segments can substantially align with a constraint line associated with the knit component 540.
[0126] Figure 8 A schematic view of the knit component 540 with radially extending inlaid strand segments 522 is depicted. It should be noted that courses of knit loops are omitted in Figure 8 to simplify the drawing, but it should be understood that the knit component 540 depicted in Figure 8 may include radially extending courses of knit loops similar to the courses 142 described with respect to Figure 3 The courses can be generally continuously radially arranged, and can include inlaid strand segments 522, while other courses can not include inlaid strand segments 522.
[0127] Because the inlaid strand segments 522 can impart tensile resistance properties to the zones in which they are located, incorporating the inlaid strand segments 522 to extend along various constraint lines can further increase the ability to constrain the foot within the upper 504 beyond the constraint provided by the knit courses.
[0128] In example aspects, the knit component 540 includes inlaid strand segments 522 aligned (e.g., parallel or substantially parallel (e.g., deviating from parallel by a small angle)) with a first diagonal constraint line (illustrated by the first axis 521), and a course aligned (e.g., parallel or substantially parallel (e.g., deviating from parallel by a small angle)) with a second diagonal constraint line (illustrated by the second axis 523) that intersects the first diagonal constraint line in a common portion of the knit component 540. This alignment can be greater than that provided by conventional knitting processes. The first axis 521 can extend from a portion of the knit component 540 configured to cover a first metatarsal bone of a wearer to a heel region 512 on the lateral side 514, and the second axis 523 can extend from a portion of the knit component 540 configured to cover a fifth metatarsal bone of a wearer to the heel region 512 on the medial side 516. These axes 521 and 523 can collectively form an X-shape, and can represent constraint lines that will improve the stability of a wearer’s foot within a shoe for many types of movement (e.g., turning or changing direction of movement, lateral movement, forward movement, and backward movement). Thus, a wearer’s foot can be constrained within the upper 504 by the inlaid strand segments 522, limiting stretching or otherwise providing support along the axes 521 and 523, which can enhance the performance of the article of footwear 500.
[0129] As Figure 8As shown, according to aspects herein, the embedded strand segments 522 can extend radially in a direction that is aligned (e.g., parallel or substantially parallel (e.g., within a small angle of parallel)) with the additional or alternative constraint lines. In one example, the embedded strands can be parallel to the constraint lines. In another example, the embedded strands can be substantially aligned with the constraint lines, e.g., within 10 degrees of parallel alignment. As further described herein, the placement (including density) and orientation of the embedded strand segments 522 within the knit component 540 can be varied based on the intended activity of the article of footwear 500. Generally, the constraint provided by the embedded strand segments on one lateral side (e.g., the lateral side 114) can be improved from the constraint on the other lateral side (e.g., the medial side 116) to act as an anchor. For example, when the wearer is performing a forward left diagonal stride, the embedded strand segments 522 on the lateral side 514 in the forefoot region 508 can help constrain the foot within the upper 504. However, another embedded strand segment 522 on the medial side 516, such as in the midfoot region 510 or the heel region 512, can help provide tension on the embedded strand segments 522 on the lateral side 514 when constraining the foot during movement.
[0130] As Figure 8 Depicted in FIG. 6, the embedded strand segments 522 can be formed by a radial knitting process in which the embedded strands 520 are integrally formed into the knit component 540. In particular, the knit component 540 can be formed on a knitting machine 562 having a first needle bed 561 and a second needle bed 563 (which can have any of the features described with respect to the knitting machine 162 shown in FIG. 1) and the process of forming the knit component 540 can be a sequential knitting process similar to the process described in connection with FIG. 5. Figure 3 As Figure 3 depicted in FIG. 6, the knit component 540 can be formed by knitting the medial side 516 of the knit component 540 from the heel region 512 of the medial side 516, knitting in the knitting direction 544 from the heel region 512 to the forefoot region 508, and then knitting the lateral side 514 of the knit component 540 from the forefoot region 508 and ending at the heel region 512, as indicated by the knitting direction 544. As described in connection with FIG. 5, according to aspects of the present disclosure, knitting in a direction opposite the knitting direction 544 can also be performed. Figure 3 As
[0131] During the knitting process, as the knitting process moves in the knitting direction 544, the inlaid strand 520 can be integrated with the knitted component 540 by inlaying the inlaid strand 520, thereby forming a plurality of strand segments 522 that will extend between the outer periphery 524 (which can form a lower portion of the upper 504 or a bite line 506 when the knitted component 540 is formed into the upper 504) and a common portion of the knitted component (which can form a throat area 526) when the knitted component 540 is formed into the upper 504. In example aspects, a combination feeder is used to inlay the inlaid strand 520 into courses formed by loops of another strand.
[0132] In Figure 8 the inlaid strand 520 is schematically depicted by its direction of travel (i.e., the direction in which the inlaid strand 520 is inserted into the knitted component 540 during the knitting process). As shown, the inlaid strand 520 alternates direction as successive strand segments 522 are formed. In this manner, the inlaid strand 520 alternates between inlaying toward the common portion (e.g., the throat area 526) and inlaying toward the outer periphery 524. In Figure 8 the inlaid strand 520 is shown in a discontinuous manner. However, as shown in greater detail in other aspects, it should be appreciated that the inlaid strand 520 can be a single continuous elongate member that forms the plurality of strand segments 522. In certain aspects, however, the inlaid strand 520 can be a discontinuous strand. For example, the inlaid strand 520 can include a first strand that forms a plurality of medial side strand segments and a second strand that forms a plurality of lateral side strand segments.
[0133] Figure 9 Another schematic view of the knitted component 540 is illustrated. As Figure 9 depicted in the inlaid strand segments 522 can be formed from a continuous inlaid strand 520 that extends from a first end 548 to a second end 550. As the strand 520 is inlaid into the knitted component 540 during the knitting process, the inlaid strand 520 is integrally formed into the knitted component 540 in the anterior-posterior direction between the outer periphery 524 and the common portion (e.g., the inner periphery 534 that defines the throat opening) of the knitted component 540 to provide the plurality of inlaid strand segments 522 in various directions around the length of the foot.
[0134] At least some of the embedded strand segments 522 can be positioned in adjacent courses such that the strand segments 522 are so close that they can be considered a single segment. These double strand segments, such as segment 558, can be spaced apart from each other by a distance that is greater than the distance between the two strands that form one double strand segment. In this way, the embedded strands 520 can be embedded in a first course from the outer perimeter 524 toward a common portion (e.g., the inner perimeter 534 in the throat area 526), embedded in an adjacent second course from the common portion to the outer perimeter 524, and then skip several courses (such as at least 4 courses) before being embedded again from the outer perimeter 524 toward the common portion. In some aspects, one or more of these double strand segments can form a loop (such as loop 552) at the end closest to the common portion. The loops 552 can provide structure (such as a lace-receiving structure) for other components of the article of footwear 500 (such as the lace 532) to engage with. In example aspects, these loops 552 do not interloop with loops formed by another yarn, such as the yarn forming the knitted element 531.
[0135] In some aspects, the strand segments 522 can have a portion 554 that extends beyond the outer perimeter 524. In this case, when the sole structure 502 is attached to the knitted component 540, the portion of the embedded strands 520 that extends beyond the outer perimeter 524 can be secured to the sole structure 502 or otherwise hidden by the sole structure 502. For example, the portion 554 that extends beyond the outer perimeter 524 can be positioned between the upper 504 and the sole structure 502 and secured to the upper 504 and the sole structure 502 by adhesive and / or by other securing means (e.g., at the bite line 506). Figure 9 It is also depicted how the knitting direction 544 can be reversed such that the knitting direction 544 begins at the lateral side 514 and ends at the medial side 516. In aspects herein, the knitting process can include embedding strands in different regions of the knitted component to impart local properties, for example, along the constraint line.
[0136] Figure 10A schematic view of the knitted component 540 with the embedded strand segments 522 after formation in accordance with a sequential knitting process is depicted. The knitted component 540 can be formed along a knitting direction 544 that begins at the heel region 512 of the first side (e.g., lateral side 514) and continues through the midfoot region 510 of the first side, the forefoot region 508 of the first side, the forefoot region 508 of the second side (e.g., medial side 516), the midfoot region 510 of the second side, and ends at the heel region 512 of the second side. In accordance with this configuration, a shoe upper, such as the shoe upper 504, or a portion thereof, can be formed by joining the edges of the two sides of the heel region 112 together. However, as noted above, in some aspects, the beginning and ending zones of the knitted component 540 can vary. For example, the knitting direction can begin at a zone of the heel region of one side and end at an adjacent zone on the same side.
[0137] The number of strand segments 522 extending between the outer periphery 524 and the common portion of the knitted component 540 can vary. In some aspects, the number of strand segments 522 on at least one of the medial side or the lateral side can be in a range from about 2 to about 35, or about 2 to about 30, or about 5 to about 25, or about 10 to about 25 strand segments. In some aspects, the number of strand segments 522 can be the same on both sides (e.g., about 20 strand segments on each side). In other aspects, as discussed in more detail below, the number of strand segments on the lateral side can differ from the number of strand segments on the medial side. Figure 10 ). In other aspects, as discussed in more detail below, the number of strand segments on the lateral side can differ from the number of strand segments on the medial side.
[0138] In Figure 10 , the spacing of adjacent strand segments 522 of the embedded strand 520 (i.e., the strand portions extending between the outer periphery 524 and the common portion, such as the inner periphery 534 of the knitted component 540) can vary along the length of the knitted component 540. For example, in the aspect shown in Figure 10 , the strand segments 522 are spaced more closely together in the forefoot region 508, more distantly in the midfoot region 510, and even more distantly in the heel region 512.
[0139] The spacing between the strand segments 522 can be defined by the distance 556 between adjacent strand segments 522 along the outer periphery 524 of the knitted component 540. In certain aspects, the distance between the strand segments can vary and be in a range from about 0.25 centimeters to about 5 centimeters, about 0.5 centimeters to about 4 centimeters, and about 1 centimeter to about 3 centimeters. As Figure 10As shown, the distance can vary based on the position of the strand segments in the knit component 540. Further, the spacing can be generally constant within a zone (e.g., within 5% of each other), or the spacing can vary within a zone (e.g., increase or decrease by an amount in the range of about 5% to about 80%, about 10% to about 60%, and about 15% to about 40%). In Figure 10 In the aspects shown, the spacing increases from the forefoot region 508 to the midfoot region 510 and from the midfoot region 510 to the heel region 512. However, as described in more detail below, the spacing can vary in other ways depending on the desired responsiveness (e.g., lock-down, stretch-resistance, blowout-resistance, deformability) of the article of footwear 500. The spacing in a particular region can also be described as the average spacing in the region, which is calculated by measuring the distance between adjacent strands and dividing by the number of spacing zones between strand segments in the region.
[0140] Table 1 below shows example spacings for strand segments in a knit component for an article of footwear based on the position of the strand segments from the forefoot region to the heel region, for example as shown in Figure 10
[0141]
[0142] In some aspects, the ratio of the average spacing in the heel region to the average spacing in the forefoot region can be in the range of about 1.5: 1 (e.g., average spacing of 3.0 cm to 2.0 cm) to about 10: 1 (e.g., average spacing of 5.0 cm to 0.5 cm), or, in some aspects, the ratio can be in the range of about 2: 1 to about 5: 1, or in other aspects, in the range of about 3: 1 to about 5: 1.
[0143] The spacing can also be defined by the number of courses of the knit component between strand segments. For example, in certain aspects, the embedded strand can be positioned at a spacing of every fourth course of the knit component. In this aspect, there would be three courses of the knit component without the embedded strand between courses with the embedded strand. Table 2 below provides example spacings based on the number of courses of the knit component without the embedded strand between courses with the embedded strand.
[0144]
[0145] In certain aspects, a ratio of an average spacing between courses of strands in the heel region to an average spacing between average number of courses of strands in the forefoot region can range from about 1.5: 1 (e.g., 3 courses between strands to 2 courses between strands) to about 10: 1 (e.g., 20 courses between strands to 2 courses between strands), or in certain aspects, the ratio can range from about 2: 1 to about 5: 1, or in other aspects, the ratio can range from about 3: 1 to about 5: 1. The average spacing ratio can be adjusted based on where a higher degree of locking is desired in the knitted component, for example, with fewer courses between strands that provide a higher degree of locking.
[0146] Figure 11 and Figure 12 depict a side view and a front perspective view, respectively, of an article of footwear 1100 and components thereof according to another example of the present disclosure. The article of footwear 1100 can include any of the features described with respect to the article of footwear 100 shown in Figure 1 and Figure 2 and / or the article of footwear 500 shown in Figure 5 and Figure 6 . Thus, the article of footwear 1100 includes a sole structure 1102 and an upper 1104 coupled to the sole structure 1102 and forming a foot-receiving cavity.
[0147] The upper 1104 defines a void within the article of footwear 1100 for receiving and securing a foot with respect to the sole structure 1102. An entrance to the void is provided by an ankle opening 1125 located within at least a heel region 1112. The upper 1104 can also include a throat region 1126 disposed in the midfoot region 1110 between the ankle opening 1125 and a forefoot region 1108. The throat region 1126 can be configured to cover a top side of a wearer’s foot and thus form a portion of a top side (or instep region) of the upper 1104 between the lateral side 1114 and the medial side 1116. In the depicted aspect, the upper 1104 includes a tongue portion, such as a tongue 1130. The article of footwear 1100 can also include a closure system (such as a lace or a lacing system shown in other figures) in the throat region 1126 to adjust the foot-receiving cavity.
[0148] At least a portion of the upper 1104 can be formed from at least one knitted component 1140, which can be formed as a single, unitary, one-piece element during a knitting process. Unless otherwise noted, the knitted component 1140 shown in Figure 11 and Figure 12 may have any of the features described with respect to the knitted component 140 shown in Figures 1-3 and / or the knitted component 140 shown inFigures 5-8 The knit component 1140 can also form the heel region 1112. These regions 1108, 1110, and 1112 can be integrally knit together. Additionally, the knit component 1140 can have radially extending knit courses that extend from the outer perimeter 1124 of the knit component to a common portion of the knit component 1140. The common portion can include at least a portion of the throat region 1126, which can extend along the longitudinal axis 1118 of the knit component 1140.
[0149] The knit component 1140 can also include one or more embedded strands, such as the embedded strand 1120, which defines a plurality of strand segments 1122. The embedded strand 1120 passes between loops of a base knit element (which can be referred to herein as a knit element). The embedded strand 1120 can be incorporated in a manner similar to that described with respect to the embedded strand 520 shown in FIG. 5. That is, the embedded strand 1120 can primarily extend within courses of loops formed by another strand (e.g., a yarn) without loops. Any features of the yarn forming the knit element 531 and / or the embedded strand 520 can apply to the knit component 1140 and the embedded strand 1120. Figures 5-8
[0150] Each embedded strand segment 1122 extends along a course of knit loops in the knit component 1140 and likewise also extends radially between the outer perimeter 1124 of the knit component 1140 and a common portion, which can be the throat region 1126. Similar to the embedded strand segments 522 shown in FIG. 5, the embedded strand segments 1122 can extend in various directions from the outer perimeter 1124 of the knit component 1140 to the common portion across the forefoot region 1108 and the midfoot region 1110. In this way, the embedded strand 1120 forms a plurality of strand segments 1122 that radially fan out from the common portion (i.e., the throat region 1126 as shown in FIG. 11). Figures 5-10 Figure 12 Figure 11 and Figure 12 Figures 5-10
[0151] Additionally, the common portion of the knit component 1140 can be a zone that is smaller than the common portion of the knit components 150 and 540, which can extend along the entire length or more than 50% of the length of the respective throat area. Alternatively, the common portion of the knit component 1140 can be only the forward portion of the throat area 1126. In some aspects, the common portion can be within 5 centimeters of the forward-most portion of the throat area 1126 (i.e., in the longitudinal direction), or in some aspects, within 2.5 centimeters or 1.25 centimeters of the forward-most portion of the throat area 1126. As used herein, the forward-most portion of the throat area 1126 can be the forward-most edge of the knit component 1140 that forms the throat area 1126 of the upper, which can be where the throat area 1126 meets the forefoot area 1108.
[0152] As previously mentioned, the location and density of the inlaid strand segments can affect the degree of constriction and the constriction line within the upper, and additionally, varying the location and / or density of the inlaid strand segments can optimize the constriction for various activities or movements. Figure 12A top-side view of footwear article 1100 shows that at least a portion of the outer side 1114 (such as the midfoot region 1110 on the outer side 1114) has a greater density of inlay strands 1122 than the corresponding portion on the inner side 1116. This different density is caused by the different spacing between the inlay strands 1122. Specifically, the distance between adjacent strands 1122 on the outer side 1114 in the midfoot region 1110 is smaller than the distance between adjacent strands 1122 on the inner side 1116 in the midfoot region 1110. The greater density of strands 1122 on the outer side 1114 helps to keep the wearer's foot restrained on the outer side 1114 of the upper 1104 and therefore prevents it from slipping off the sole structure 1102 on the outer side 1114. In some respects, footwear article 1100 can be anticipated to be worn while moving in a generally counter-clockwise pattern (such as when a person runs around a running track). When a person moves around a running track (such as while running), the foot is frequently pushed towards one side of the track, which may be on the inner side of a footwear item intended for the right foot (as in footwear item 100) when moving counterclockwise around the track. Therefore, a greater density of radially extending insert segments 1122 on the opposite side (outer side 1114) of footwear item 1100 helps restrain the foot by counteracting the natural force pushing the wearer's right foot towards the track. Conversely, a shoe (intended for the wearer's left foot) may similarly have an asymmetrical density of insert segments between the outer and inner sides, but with a greater density of insert segments on the inner side of the upper, which will be the side facing away from the track for the footwear worn on the left foot. Furthermore, the insert segments 1122 may be positioned within at least a portion of the midfoot region 1110 and the forefoot region 1108, but not within the heel region 1112. This arrangement may be advantageous in footwear items 1100 intended for activities primarily involving forward movement, such as running.
[0153] Figure 13 A schematic diagram depicts a knitted component 1140 having radially extending embedded strand segments 1122. In the depicted aspects, in Figure 13 The rows of knitted loops are omitted from the accompanying diagram to simplify the illustration, but it should be understood that... Figure 13 The knitted component 1140 depicted may include similar components to those described above. Figure 3 The depicted rows 142 are radially extending rows of knitted loops. These rows may or may not include embedded ply segments 1122.
[0154] Compared to the strand segments 1122 located on the inner side 1116 in the mid-shoe region 1110, the embedded strand segments 1122 on the outer side 1114 can be more densely packed (e.g., have a closer spacing, or, more specifically, are positioned closer to each other). As previously described, the spacing between the embedded strand segments 1122 can be defined as the distance between the strand segments 1122 on the outer perimeter 1124. Regarding Figure 13 Any distance described can be the distance between adjacent strand segments 1122 in the midfoot region 1110 on the outer side 1114, in the forefoot region 1108, and / or in the midfoot region 1110 on the inner side 1116 of the upper 1104. In an example aspect, the ratio of the average spacing based on the number of rows in the midfoot region 1110 on the outer side 1114 to the average spacing based on the number of rows in the midfoot region 1110 on the inner side 1116 can be in the range of approximately 1:1.25 to 1:8, approximately 1:1.5 to 1:5, and approximately 1:2 to 1:3. In an example aspect, the ratio is 1:1.5, or for every 1.5 rows between strand segments 1122 on the inner side 1116, there is one row between strand segments 1122 on the outer side 1114. For example, there can be two rows of strands 1122 on the outer side 1114, and three rows of strands 1122 on the inner side 1116.
[0155] In addition, such as Figure 13 As depicted, embedded yarn segments 1122 can be formed sequentially, and wherein a single continuous embedded yarn 1120 is integrally formed into a knitting component 1140. Specifically, the knitting component 1140 can be in a knitting machine 1162 including a front needle bed 1161 and a rear needle bed 1163 (which may have features for...). Figure 3 The knitted part 1140 is formed on any of the features described in the knitting machine 162 shown, and the process of forming the knitted part 1140 can be a sequential knitting process following the knitting direction 1144, similar to the combination Figure 4 The process described. When the knitted part 1140 is removed from the knitting machine 1162, the knitted part 1140 may have an asymmetrical shape along the longitudinal axis 1118, which can be produced by a sequential knitting process that begins with the heel portion on one side and ends with the adjacent portion on the same side. In this example, first, the heel region 1112 of the inner side 1116 of the upper, which will form the upper once the knitted part 1140 is formed, is knitted; then, the remaining portion of the heel region 1112 on the outer side 1114 is knitted; then, the midfoot region 1110 on the outer side 1114 is knitted; then, the forefoot region 1108 is knitted; and then, the midfoot region 1110 on the inner side 1116 is knitted. It should be understood that... Figure 13The same shape of the knitted component 1140 shown in FIG. 14 can be achieved by knitting in the reverse order.
[0156] As described with respect to the knitted component 440 of FIG. 4, Figure 4 As described with respect to the knitted component 440 of FIG. 4, Figure 13 The knitted component 1140 can still include courses that do not extend toward the common portion when the knitted component 1140 is in the laid flat configuration shown in FIG. 14, but after the knitted component 1140 is folded to form the shape of the upper 1104, the knitted component 1140 can be reoriented to extend radially between the outer perimeter 1124 and the common portion.
[0157] During the knitting process, as the knitting process moves in the knitting direction 1144, the inlaid strand 1120 can be integrated with the knitted component 1140 by inlaying the inlaid strand 1120, thereby forming a plurality of strand segments 1122 that will extend between the outer perimeter 1124 of the knitted component (which can form a lower portion or bite line 1106 of the upper 1104 when the knitted component 1140 is formed into the upper 1104) and the common portion (which can form an upper portion of the upper 1104) when the knitted component 1140 is formed into the upper 1104. In example aspects, a combination feeder is used to inlay the inlaid strand 1120 within courses formed by loops of another strand of yarn.
[0158] Figures 14-16 FIG. 14 illustrates additional example aspects in which a knitted component is formed with an inlaid strand extending from a perimeter of the knitted component to a common portion of the knitted component according to aspects herein. In these additional examples, the location, density, and angle of the inlaid strand segments (which can be based on the location of the common portion) can vary based on the required constraints for various activities and intended uses. Unless otherwise noted herein or shown in the drawings, any knitted component in Figures 14-16 Any knitted component in Figures 14-16 Any knitted component in Figures 14-16 Any knitted component in
[0159] Figure 14 FIG. 14 illustrates an example knitted component 1440 in which strand segments 1422 of an inlaid strand extend between an outer perimeter 1424 of the knitted component 1440 and a common portion of the knitted component 1440. In this aspect, the common portion is with respect to the knitted component 1440 as described with respect to the knitted component 440 of FIG. 4. Figures 5-8The common portion of the knitted component 540 is larger than the portion including the knitted component 1440. Specifically, Figure 14 The common portion is part of the knitted component 1440 that defines the throat region 1426 and the ankle opening 1460. Due to the large area of the common portion, at least some of the embedded strand segments 1422 in the midfoot region 1410 and the heel region 1412 can be parallel or substantially parallel to each other.
[0160] The knitted component 1440 can be formed by embedding yarn strands during the knitting process. Specifically, the yarn strands can be embedded in a first region on one side of the knitted component (e.g., the heel region on the inner or outer side), and the knitted component can then be completed by knitting along the knitting direction until the knitted component is fully constructed as described elsewhere herein. As in the preceding aspects, yarn strand segments 1422 extend through the forefoot region 1408, the midfoot region 1410, and the heel region 1412.
[0161] like Figure 14 As shown, the spacing of the embedded strand segments 1422 extending radially along the longitudinal length of the entire upper is more uniform in this aspect than in the previous aspect. For example, the minimum distance between adjacent strand segments 1422 in all areas (forefoot area 1408, midfoot area 1410, and heel area 1412) can be within 50%, 40%, or 25% of the maximum distance. Thus, for example, in one aspect, the maximum spacing (e.g., in the heel area) can be 4 cm, and the minimum spacing between adjacent strand segments (e.g., in the midfoot or forefoot area) can be equal to or greater than 3 cm (e.g., within 25% of 4 cm).
[0162] Similarly, based on the number of rows of knitted parts without embedded plies between rows of knitted parts with embedded plies, the spacing of the ply segments 1422 with embedded plies achieved by rows can be more uniform than in the previous aspect. For example, the minimum number of rows between adjacent ply segments can be within 50% of the maximum number of rows between adjacent ply segments, within 40% of the maximum number of rows between adjacent ply segments, or within 25% of the maximum number of rows between adjacent ply segments. Thus, for example, in one aspect, the maximum spacing (e.g., in the heel area) can be 10 rows between adjacent ply segments, and the minimum spacing (e.g., in the midfoot or forefoot) can be between 5 and 10 rows (e.g., within 50%).
[0163] Figure 15Another aspect of a knitted component 1540 is depicted, featuring radially extending knitted rows and embedded ply segments 1522. The embedded ply segments 1522 extend between the perimeter 1524 of the knitted component 1540 and the common portion of the knitted component 1540. In this respect, the common portion is smaller than... Figures 5-8 The common part of the knitted component 540. Figure 15 The common portion of the knitted component 1540 shown includes only the foreground portion of the throat region 1526. Therefore, in some aspects, the common portion may be within a smaller area of the throat region 1526, such as within 5 cm of the foremost portion of the throat region 1526 (i.e., in the longitudinal direction), or in some aspects, within 2.5 cm or 1.25 cm of the foremost portion of the throat region 1526 (i.e., in the longitudinal direction). As used herein, the foremost portion of the throat region 1526 may be the foremost edge of the knitted component forming the throat region 1526 of the upper, which may be where the throat region 1526 meets the forefoot region 1508. A smaller common portion may result in the embedded strand segments being oriented at a greater number of different angles around the wearer's foot.
[0164] like Figure 15 As depicted, an asymmetrical pattern of ply segments 1522 may exist. In this example, the knitted component 1540 includes five ply segments 1522 on the inner side 1516, three ply segments 1522 on the outer side 1514, and one ply segment extending along the longitudinal axis in the forefoot region 1508. Therefore, in this respect, the number of ply segments positioned on one side (e.g., the outer side) can be greater than the number of ply segments positioned on the other side (e.g., the inner side). As described with respect to the knitted component 1140, this asymmetrical positioning of the ply segments 1522 may be advantageous for footwear intended for certain activities that involve movement biased to one side or are used more frequently than movement to the other side. In some aspects, the number of ply segments on one side may be equal to or less than half the number of ply segments on the other side. In other aspects, the number of ply segments on one side may be equal to or less than one-third the number of ply segments on the other side.
[0165] For asymmetrical aspects, such as Figure 15 Regarding the aspects described herein, it should be understood that the outer and inner surfaces can be reversed. Therefore, for example, the inner or outer surface can have a greater number of strands for concentrated radial reinforcement.
[0166] Figure 16Another aspect of the knitted component 1640 is depicted, which has embedded strand segments 1622 extending between the outer perimeter 1624 of the knitted component 1640 and the common portion of the knitted component 1640. Similar to... Figure 15 The common portion of the knitted component 1540 shown includes only the front portion (e.g., the foreground half) of the throat region 1626. In some aspects, the common portion of the knitted component 1640 may be within 5 cm (e.g., in the longitudinal direction) of the foremost portion of the throat region 1626, or in some aspects, within 2.5 cm or 1.25 cm (e.g., in the longitudinal direction) of the foremost portion of the throat region 1626.
[0167] In this respect, the embedded yarn segments 1622 extend through portions of the forefoot region 1608 and the midfoot region 1610, but not in the heel region 1612. An equal number of yarn segments (five yarn segments in this example case) can be provided on each side (outer side 1614 and inner side 1616). Compared to other knitted components disclosed herein, the knitted component 1640 does not include the same number of yarn segments 1622 in the forefoot region 1608. Specifically, the knitted component 1640 does not include any yarn segments in the central portion of the forefoot region 1608 adjacent to the longitudinal axis 1618. This lack of yarn segments 1622 in the forefoot region may be advantageous when footwear is intended for activities with less forward movement.
[0168] In one aspect, a radial knitting process or a sequential knitting process can be performed, such that the inner and outer sides of the knitted part can generally be formed sequentially rather than simultaneously. For example, instead of forming the inner and outer sides simultaneously, all (or substantially all, i.e., within 5% of the length) of the inner side can be formed, followed by the formation of all (or substantially all, i.e., within 5% of the length) of the outer side. Alternatively, the outer side can be formed first, and the inner side can be formed subsequently. In some aspects, a portion of a first side (inner or outer) can be formed first, and then a second side (e.g., another side) can be formed, followed by completing the knitted part by knitting the remaining portion of the first side. In some aspects, the reverse order can be used. In this way, multiple adjacent rows forming at least a portion of the first side (i.e., the inner or outer side) can be knitted before multiple adjacent rows forming at least a portion of the second side (i.e., the other of the inner or outer sides).
[0169] Figure 17 A block diagram depicts an example method 1700 for manufacturing a knitted part according to aspects of this document, the knitted part being, for example, respectively in... Figures 1-3 , Figures 5-8 andFigures 11-13 knit component 140, 540, and / or 1140 shown in FIGS. 1-2. The method 1700 includes blocks 1702-1706, but is not limited to this selection of elements. In block 1702, the method 1700 includes forming a first midfoot region of an upper (e.g., the midfoot region 110 of the upper 104 shown in FIG. 1) on a knitting machine (e.g., the knitting machine 162 shown in FIG. 1) that forms the knit component 140, 540, and / or 1140. The first midfoot region forms one of a lateral side and a medial side (e.g., the lateral side 114 and the medial side 116 of the upper 104 shown in FIG. 1). In block 1704, the method 1700 includes forming a forefoot region of the upper (e.g., the forefoot region 108 of the upper 104 shown in FIG. 1) on the knitting machine after forming the first midfoot region, the forefoot region being integrally knit with the first midfoot region, for example, by a single knitting process performed on the knitting machine. In one example, the forefoot region can be a toe region formed by one or more wedge-shaped portions (e.g., a plurality of wedge-shaped portions). In block 1706, the method 1700 includes forming a second midfoot region of the upper (e.g., the midfoot region 110 of the upper 104 shown in FIG. 1) on the knitting machine after forming the forefoot region, the second midfoot region being integrally knit with the forefoot region and forming the other of the lateral side and the medial side. The first midfoot region and the second midfoot region can each be formed by one or more wedge-shaped portions described herein. Figure 3 Figure 3 Figure 3 Figure 3 Figure 3
[0170] Figure 18 a block diagram depicting an example method 1800 of forming an article of footwear (e.g., the article of footwear 500 shown in FIG. 1) according to aspects herein. The method 1800 includes blocks 1802 and 1804, but is not limited to this selection of elements. In block 1802, the method 1800 includes forming at least a portion of an upper (e.g., the upper 104 shown in FIG. 1) by knitting a knit element (e.g., the knit element 531 shown in FIG. 5), the knit element including a plurality of courses extending between an outer perimeter and an inner perimeter, for example, as shown in Figure 5 Figure 7 Figure 1 Figure 3 Figure 3 Figure 7 Figure 8 The illustrated strand segments 522) extend within respective ones of the plurality of courses of the knitted element between the outer periphery and the inner periphery.
[0171] Figure 19 An example knitted component 1940 is depicted in accordance with aspects herein having embedded strands 1920, 1930 positioned in certain regions of the knitted component 1940. As discussed herein, the knitted component 1940 can form at least a portion of an upper for an article of footwear. In Figure 19 In particular, the knitted component 1940 is formed to include a forefoot region 1908, a midfoot region 1910, and a heel region 1912. Further, the knitted component 1940 includes an outer periphery 1924 and an inner periphery 1934 (e.g., located about a throat region 1926). The knitted component 1940 can be formed as a single, unitary knitted element, e.g., knitted as a single, unitary knitted element in a single, continuous knitting process on a knitting machine. Further, the knitted component 1940 can be formed to include an inner knitted layer and an outer knitted layer, e.g., the inner knitted layer and the outer knitted layer interconnected to collectively form a base textile. Figure 19 It is also depicted how the embedded strands 1920, 1930 are integrated such that each embedded strand 1920, 1930 extends between the inner knitted layer and the outer knitted layer of the base textile, i.e., at least partially extends through the base textile, such that the embedded strands 1920, 1930 are at least partially visible through the base textile of the knitted component 1940.
[0172] Still observing Figure 19 It can be seen how the embedded strands 1920 are located on the lateral side 1914 of the knitted component 1940 and how the embedded strands 1930 are located on the medial side 1916 of the knitted component 1940. Further, the embedded strands 1920 form a plurality of strand segments 1922 that extend on the lateral side 1914 from the periphery 1924 of the knitted component 1940 toward the common portion of the knitted component 1940, and the embedded strands 1930 form a plurality of strand segments 1932 that extend on the medial side 1916 from the periphery 1924 of the knitted component 1940 toward the common portion of the knitted component 1940. Further, at least a portion of each set of strand segments 1922, 1932 is connected with a loop positioned along a respective portion of the outer periphery 1924 of their knitted component 1940. Further, the strand segments 1922, 1932 also form loops 1921, 1931 adjacent the inner periphery 1934 of the knitted component 1940, e.g., forming at least a portion of a hole for receiving a lacing element.
[0173] By way of Figure 19The illustrated knit component 1940 has at least a portion of the strand segments 1922 extending through courses of knitting at an angle relative to one another toward the interior perimeter 1934, e.g., forming at least a partial radial configuration about a common portion, such as the throat area 1926, and at least a portion of the strand segments 1932 extending through courses of knitting at an angle relative to one another toward the interior perimeter 1934, e.g., forming at least a partial radial configuration about a common portion, such as the throat area 1926. However, the strand segments 1922, 1932 are generally not present in the toe region 1908 of the forefoot region 1908. This creates localized reinforcement and / or constraint at the medial side 1916 and the lateral side 1914, and less reinforcement and / or constraint in the forefoot region 1908. To provide this reinforcement and / or constraint, the strands 1920, 1930 can be high tenacity yarns, cables, filaments, monofilaments, multi-filaments, etc. In other words, the strands 1920, 1930 can be formed or selected to have a higher tenacity, resistance to stretching, and / or tensile strength than the yarns of the base textile forming the knit component 1940 to impart reinforcement and / or constraint in the direction of the common portion.
[0174] Figure 20 A knit component 2040 according to aspects herein is depicted having substantially continuous inlaid strands extending about the knit component 2040. The knit component 2040 includes similar elements as the other knit components described herein. In addition, the knit component 2040 includes continuous inlaid strands 2020, 2032 that are inlaid such that the inlaid strands 2020, 2032 extend substantially adjacent to one another from the exterior perimeter 2024 toward the interior perimeter 2034. For example, in one aspect, the inlaid strands 2020, 2032 extend along directly adjacent courses in an order or alternating manner. The inlaid strands 2020, 2032 are also inlaid to extend toward and about a common portion of the knit component 2040, such as the throat area 2026, thereby forming a substantially radial configuration about the common portion. In Figure 20 In one aspect, the inlaid strands 2020, 2032 are continuously inlaid along the medial side 2016, along the forefoot region 2008, and along the lateral side 2014.
[0175] The strands 2020, 2032 can be embedded during a knitting process performed by a knitting machine. For example, the strands 2020, 2032 can be embedded into the knitted component 2040 with each pass of a carriage of the knitting machine, for example, such that the strands extend continuously along adjacent courses of the knitted component 2040. It should be noted that while a pair of continuous strands 2020, 2032 are embedded into the knitted component 2040 (e.g., within the knitted component 2040 or along a surface of the knitted component 2040), a single continuous embedded strand can be included or more than two embedded strands can be included. In different aspects, the embedded strands 2020, 2032 can be a yarn, such as a high tenacity yarn, for example, a polyester yarn, for example, an inelastic polyester yarn, or can be other types of fibers, cables, filaments, or multifilaments, for example, materials having high tensile strength and / or high resistance to stretch. For example, in one aspect, the embedded strands 2020, 2032 can be a monofilament or multifilament polyester yarn. This can allow the embedded strands 2020, 2032 to have a higher tenacity, resistance to stretch, and / or tensile strength than the yarns of the remaining base textile forming the knitted component 2040. This configuration can help impart reinforcement and / or restraint to the knitted component 2040 in the direction of the common portion.
[0176] Furthermore, it is still observed Figure 20 that the lateral side 2014 and the medial side 2016 of the knitted component 2040 further include embedded cables 2023, 2033, respectively, where these cables 2023, 2033 are also selected from higher strength or resistance to stretch materials. The cables 2023, 2033 extend from the outer perimeter 2024 through the knitted component 2040 (e.g., through layers thereof and / or through tunnel structures thereof), around the eyelet / lace opening 2025, 2035, out the inner perimeter 2034 (e.g., forming a loop), back into the knitted component 2040, and to the outer perimeter 2024 (e.g., forming a loop again), and continue to form a repeating sequence on the lateral side 2014 and the medial side 2016 of the knitted component 2040. The cables 2023, 2033 also extend around the common portion (e.g., the throat area 2026), similar to the embedded strands 2020, 2032. Thus, the cables 2023, 2033 can also extend at least partially at an angle relative to one another, as discussed herein. Including the cables 2023, 2033 can provide further reinforcement and / or restraint on the lateral side 2014 and the medial side 2016 of the knitted component 2040, among other benefits.
[0177] Figure 21A knit component 2140 including different zones having different types of knit constructions according to aspects herein is depicted. The knit component 2140 includes knit elements forming a base textile having embedded strands 2120, 2130 extending at least partially through the base textile from an outer perimeter 2124 to an inner perimeter 2134. The embedded strands 2120, 2130 extend around a common portion, such as a throat area 2126. Further, the throat area 2126 also includes a textile 2115 interconnecting the inner perimeters 2134, such as forming an overfoot portion. The strands 2120, 2130 embedded in the base textile can extend generally angularly relative to one another, such as forming a radial configuration at least partially around the common portion of the knit component 2140.
[0178] The knit component 2140 includes different knit structures in different zones. In this sense, the knit component 2140 is a composite type knit component formed using different knit processes. The medial side 2116 of the knit component 2140 has strands 2120 embedded within courses of knit elements 2113 forming a base textile at the medial side 2116, where the courses of knit elements 2113 and the embedded strands 2120 extend around a common portion of the knit component 2140, such as in a substantially radial configuration. The lateral side 2114 of the knit component 2140 has strands 2130 embedded within courses of knit elements 2117 forming a base textile at the lateral side 2114, where the courses of knit elements 2117 and the embedded strands 2130 extend around a common portion of the knit component 2140, such as in a substantially radial configuration. Further, it can be seen that the forefoot region 2108 includes differently formed knit elements 2119, such as knit elements 2119 formed with a non-radial configuration. For example, the knit elements 2119 can be knit elements including knit courses extending horizontally (e.g., from left to right in the figure) as opposed to radial configurations having knit courses extending toward and around a common portion, such as knit courses extending at least partially angularly relative to one another. Such multiple knit constructions can allow for greater reinforcement and / or constraint in the medial side 2116 and lateral side 2114 of the midfoot portion 2110 of the knit component 2140, while allowing for a more relaxed, comfortable oriented feel in the forefoot region 2108 of the knit component 2140, among other benefits. Figure 21 The knit component 2140 includes different knit structures in different zones. In this sense, the knit component 2140 is a composite type knit component formed using different knit processes. The medial side 2116 of the knit component 2140 has strands 2120 embedded within courses of knit elements 2113 forming a base textile at the medial side 2116, where the courses of knit elements 2113 and the embedded strands 2120 extend around a common portion of the knit component 2140, such as in a substantially radial configuration. The lateral side 2114 of the knit component 2140 has strands 2130 embedded within courses of knit elements 2117 forming a base textile at the lateral side 2114, where the courses of knit elements 2117 and the embedded strands 2130 extend around a common portion of the knit component 2140, such as in a substantially radial configuration. Further, it can be seen that the forefoot region 2108 includes differently formed knit elements 2119, such as knit elements 2119 formed with a non-radial configuration. For example, the knit elements 2119 can be knit elements including knit courses extending horizontally (e.g., from left to right in the figure) as opposed to radial configurations having knit courses extending toward and around a common portion, such as knit courses extending at least partially angularly relative to one another. Such multiple knit constructions can allow for greater reinforcement and / or constraint in the medial side 2116 and lateral side 2114 of the midfoot portion 2110 of the knit component 2140, while allowing for a more relaxed, comfortable oriented feel in the forefoot region 2108 of the knit component 2140, among other benefits.
[0179] Figure 22A knit component 2240 having differently configured zones according to aspects herein is depicted. The knit component 2240 includes elements similar to other knit components described herein. For example, the knit component 2240 includes a knit element forming a base textile and at least one inlaid strand 2220 extending through the knit element between an outer perimeter 2224 and an inner perimeter 2234, e.g., toward a common portion, such as a throat area 2226. The inlaid strand 2220 forms a plurality of strand segments 2222 extending around a toe zone of a forefoot portion 2208, each strand segment extending toward the common portion, such as the throat area 2226. In one aspect, the strand segments 2222 can form a lace loop at the throat area 2226 and can be at least partially exposed by the base textile.
[0180] Still observing Figure 22 It can be seen that the knit component 2240 is formed such that portions of the knit component 2240 include or incorporate fusible yarns, e.g., yarns formed of thermoplastic polymeric materials. In Figure 22 , these fusible yarns are localized in a portion of the forefoot area 2208, e.g., in this case, on the lateral side 2114, to impart localized properties, such as stiffness, resistance to stretching, constraint, reinforcement, durability, and other properties to the lateral side 2114. It will be appreciated that these materials can be integrated at any location on the knit component 2240 or other knit components described herein. Incorporation of these fusible yarns means that heat can be applied at a temperature at or above the melting temperature of the fusible yarns, but below the melting temperature of the yarns forming the remainder of the knit component 2240, to form at least a partial fusion zone 2215 on the knit component 2240, e.g., on an interior surface and / or an exterior surface of the knit component 2240. Alternatively, this fusion zone 2215 can be on the medial side 2216, or on portions of both the medial side 2216 and the lateral side 2214 and / or the entire toe area, and can cover greater or lesser portions of the knit component in different aspects.
[0181] Figure 23A An example knit sequence schematic 2310 (hereinafter knit schematic 2310) for knitting a knit component 2330 as Figure 23B depicted is shown, which depicts a knit pattern according to Figure 23A as the knit component 2330 is being knitted on a knitting machine, e.g., including a Figure 3a knit component 2330 as it is formed on a knitting machine 162) of a front needle bed 161 and a back needle bed 163 as shown. The knit schematic 2310 illustrates a knit direction 2312 for radially knitting or sequential knitting a heel region, a medial region or a lateral region, a forefoot region, and another of the medial region or the lateral region in a sequential manner. Radial knitting or sequential knitting is further described herein in connection with Figure 17 and Figure 18 Radial knitting or sequential knitting is further described herein in connection with
[0182] The knit schematic 2310 illustrates an outer perimeter 2302 of the knit component 2330 and an inner perimeter 2304 of the knit component 2330. Further, the knit schematic 2310 illustrates a plurality of wedge portions 2314 that can be knit to form the knit component. The plurality of wedge portions 2314 each include a first edge at the outer perimeter 2302 and a second edge at the inner perimeter 2304. Further, the first edge is greater in length than the second edge. Further, each of the plurality of wedge portions 2314 includes at least one course that extends between the outer perimeter 2302 and the inner perimeter 2304. In some examples, the second edge in one or more of the plurality of wedge portions 2314 can be formed as an apex.
[0183] Each wedge portion 2314 can be formed by knitting a series of courses, for example, by increasing the length of subsequent courses or groups of subsequent courses in the series of courses from a first row until a desired width of the knit component at the region (e.g., the midfoot region, the forefoot region, etc.) is reached, and then decreasing the length until a last row is reached. Further, when a course having a desired length is reached, one or more additional courses can be knit with a length corresponding to the desired width to form the second edge (at the inner perimeter 2304). In this manner, a first group of courses having a length that gradually increases in the knit direction 2312 can be knit to form a third edge of the wedge portion 2314, and a second group of courses having a length that gradually decreases in the knit direction 2312 can be knit to form a fourth edge of the wedge portion 2314. As discussed above, to create a wedge structure, a first group of courses of increasing length is knit until a desired width of fabric is reached. Subsequently, one or more courses at the desired width are knit, and then a second group of courses of decreasing length are knit to complete the wedge structure. Thus, through this process, a wedge portion extending between the inner perimeter 2304 and the outer perimeter 2302 is created. The number and / or length of the courses can be adjusted to increase or decrease the surface area of the wedge portion.
[0184] By knitting a series of wedges, the knitted component 2330 can be configured to bend or otherwise form an arcuate shape relative to a common portion (e.g., the inner perimeter 2304 in the present example). The inner perimeter 2304 can form at least a portion of a throat area of an upper in the fully formed knitted component 2330.
[0185] Further, as shown in the knit schematic 2310, the forefoot region 2306 includes a set of wedges configured to form a curved structure having a higher curvature (e.g., a smaller radius of curvature). For example, each of the set of wedges in the forefoot region 2306 can have a smaller surface area than the set of wedges in the midfoot region. Additionally, or alternatively, the total number of wedges in the forefoot region 2306 can be increased. Thus, by incorporating multiple wedges in the forefoot region 2306, the curved structure of the knitted component 2330 of the upper in the forefoot region 2306 is created.
[0186] In this manner, the knitted component 2330 includes a stack of wedges, where when knit from the medial to lateral direction, a first set of wedges is configured to form a medial side of the knitted component 2330, a second set of wedges is configured to form a toe region of the knitted component 2330, and a third set of wedges is configured to form a lateral side of the knitted component 2330. Additionally, in one aspect, a fourth set of wedges can be included to form a heel region of the knitted component. In a second example that optionally includes the first example, the number of wedges in the second set of wedges is greater than the number of wedges in the first set of wedges or the number of wedges in the third set of wedges.
[0187] In one embodiment, the upper includes a knit component having a plurality of interlooped courses defining wedge portions of the knit component, each wedge portion defined by a portion of an outer perimeter of the knit component, a portion of an inner perimeter of the knit component, a first knit course extending from the outer perimeter to the inner perimeter, and a second knit course extending from the outer perimeter to the inner perimeter. In a first example of the upper, the portion of the inner perimeter defining the wedge portion has a shorter length than the portion of the outer perimeter defining the wedge portion. In a second example of the upper optionally including the first example, each wedge portion includes a full-length course positioned between the first course and the second course and extending from the outer perimeter to the inner perimeter, and includes a partial-length course positioned between the first course and the second course and extending from the outer perimeter and terminating prior to the inner perimeter. In a third example of the upper optionally including one or more of the first example and the second example, at least some of the wedge portions of the knit component form a forefoot region of the upper. In a fourth example of the upper optionally including one or more of the first example through the third example, at least some of the wedge portions of the knit component form a midfoot region of the upper. In a fifth example of the upper optionally including one or more of the first example through the fourth example, at least some of the wedge portions of the knit component form a heel region of the upper. In a sixth example of the upper optionally including one or more of the first example through the fifth example, the upper is an upper of an article of footwear.
[0188] The knit schematic 2310 illustrates one or more embedded strands 2318, which can interloop with one or more courses in the knit component 2330. The location and number of embedded strands (i.e., where the embedded strands are embedded) can be selected so as to provide a desired level and / or direction of constraint. In one example, the location of the embedded strands can be selected to allow the one or more embedded strands to align or substantially align with one or more constraint lines, such as the constraint lines discussed in connection with FIGS. 12 and 13 along the axes 121, 123. In another example, additionally or alternatively, the geometry of the wedge (e.g., the length of each side of the wedge, the surface area, etc.) can be adjusted to position the one or more embedded strands at a desired location and / or to align the embedded strands with one or more constraint lines or a desired direction of reinforcement. Figure 3
[0189] In Figure 23A , the knit rows forming the wedge 2314 are represented according to how the rows would be formed / knitted by a knitting machine. In this sense, the knit rows include both longer rows and shorter rows. The longer rows (measured from left to right in Figure 23A ) represent longer knit courses, and the shorter rows (measured from left to right in Figure 23A The spaces 2316 located near and between the knit rows forming the wedge 2314 represent stitches that are held or uncompleted during the knitting process, or more precisely, represent unknitted sections of knit courses. Figure 23A The lines in the represent inlaid strands 2318. Forming a knitted component 2330 having a wedge (e.g., longer and shorter courses along the knit direction 2312) allows a base textile formed on a knitting machine to turn, i.e., naturally form a non-linear, arcuate, and / or radial shape around a common portion, location, and / or point. This knitted configuration also allows inlaid strands 2318 to extend in a similar non-linear, arcuate, and / or radial shape around the common portion, location, and / or point. In Figure 23B The formation of the knitted component 2330 of the knit sequence 2310 shown in Figure 23A The formation of the knitted component 2330 of the knit sequence 2310 shown in Figure 23B The wedge of produces a radially arranged knitted piece on courses of the knitting process. Figure 23A The wedge of produces a radially arranged knitted piece on courses of the knitting process.
[0190] The knitted components described herein can be incorporated into different articles (e.g., an upper, an article of footwear, an article of apparel, such as a hat, a cap, a shirt, a jersey, a jacket, a sock, shorts, pants, undergarments such as briefs and bras, athletic support apparel, a glove, a wrist / arm band, a sleeve, a headband), or can be incorporated into other articles such as sporting equipment, a bag, a backpack, or an outdoor recreation device or equipment, among other contemplated articles.
[0191] Clause 1 An upper comprising: a knitted component forming at least a forefoot region and a midfoot region of the upper and having an outer perimeter, the forefoot region being integrally knitted with the midfoot region, the forefoot region having a first course continuously extending between the outer perimeter in the forefoot region and a common portion of the knitted component, the midfoot region having a second course continuously extending between the outer perimeter in the midfoot region and the common portion of the knitted component, the first course and the second course extending at an angle relative to one another.
[0192] Clause 2 The upper of clause 1, wherein the knitted component forms a heel region of the upper, the heel region having a third course continuously extending between the outer perimeter in the heel region and the common portion of the knitted component.
[0193] Clause 3 The upper of clause 1 or 2, wherein the common portion of the knitted component is an instep region of the upper.
[0194] Clause 4 : The upper of any of clauses 1-3, wherein the common portion of the knitted component is an anterior portion of the throat area of the upper.
[0195] Clause 5 : The upper of any of clauses 1-4, wherein the knitted component forms a tongue of the upper.
[0196] Clause 6 : The upper of any of clauses 1-5, wherein the tongue is integrally knitted with at least the forefoot region.
[0197] Clause 7 : The upper of any of clauses 1-6, wherein the knitted component forms a heel region of the upper and includes a fourth course extending at least partially in the heel region and a fifth course extending at least partially in a forefoot region, the fourth and fifth courses each extending parallel to an axis extending between a portion of the forefoot region configured to cover a first metatarsal bone of a wearer to a lateral portion of the heel region.
[0198] Clause 8 : The upper of any of clauses 1-7, wherein the knitted component forms a heel region of the upper and includes a fourth course extending at least partially in the heel region and a fifth course extending at least partially in a forefoot region, the fourth and fifth courses each extending parallel to an axis extending between a portion of the forefoot region configured to cover a fifth metatarsal bone of a wearer to a medial portion of the heel region.
[0199] Clause 9 : The upper of any of clauses 1-8, wherein the knitted component further includes an embedded strand having a plurality of strand segments, each strand segment extending from the outer perimeter to the common portion.
[0200] Clause 10 : The upper of any of clauses 1-9, wherein each strand segment extends through the upper from the outer perimeter to the common portion.
[0201] Clause 11 : The upper of any of clauses 1-10, wherein one or more strand segments within the plurality of strand segments are positioned within the forefoot region of the upper.
[0202] Clause 12 : The upper of any of clauses 1-11, wherein the common portion includes a throat area of the upper.
[0203] Clause 13: The upper of any of clauses 1-12, wherein the upper comprises a portion of an article of footwear.
[0204] Clause 14 : A method of manufacturing a knitted component for an upper, the method comprising: forming a first midfoot region of the upper on a knitting machine, the first midfoot region forming one of a lateral side and a medial side of the upper; forming a forefoot region of the upper on the knitting machine after forming the first midfoot region, the forefoot region being integrally knitted with the first midfoot region; and forming a second midfoot region of the upper on the knitting machine after forming the forefoot region, the second midfoot region being integrally knitted with the forefoot region and forming the other of the lateral side and the medial side.
[0205] Clause 15 : The method of clause 14, wherein the knitted component comprises: a first course positioned in the forefoot region and extending continuously from an outer perimeter of the upper to a common portion of the upper; and a second course positioned in the first midfoot region of the upper and extending continuously between the outer perimeter and the common portion.
[0206] Clause 16 : The method of clause 14 or 15, wherein at least a subset of needles used to form the first midfoot region are used to form the second midfoot region.
[0207] Clause 17 : The method of any of clauses 14-16, wherein the knitted component comprises a knitted element and one or more inlaid strands extending through one or more courses of the knitted element, the inlaid strands being inlaid when forming the knitted element on the plurality of needles of the knitting machine.
[0208] Clause 18 : The method of any of clauses 14-17, wherein the knitted component is formed such that the knitted component comprises a plurality of inlaid strands in at least a first portion of the knitted component, the plurality of inlaid strands extending at an angle relative to each other between an outer perimeter of the upper and a common portion of the upper, the plurality of inlaid strands having a higher tenacity than one or more yarns forming a remainder of the knitted component.
[0209] Clause 19: An upper, comprising: a knitted element defining at least a portion of an exterior perimeter of the upper and having a plurality of courses extending between the exterior perimeter and a throat area; at least one inlaid strand integrated with the knitted component to form a plurality of strand segments extending between the exterior perimeter and the throat area within respective ones of the plurality of courses of the knitted component, wherein at least a portion of the plurality of strand segments extend at an angle relative to one another.
[0210] Clause 20 : The upper of clause 19, wherein the at least one inlaid strand is integrated with the knitted element such that the plurality of strand segments are spaced apart along a length of the knitted element.
[0211] Clause 21 : The upper of clause 19 or 20, wherein the plurality of strand segments includes a midfoot strand segment located in a midfoot region of the upper.
[0212] Clause 22 : The upper of any of clauses 19-21, wherein the plurality of strand segments includes a heel strand segment extending from a sole structure to the throat area.
[0213] Clause 23 : The upper of any of clauses 19-22, wherein adjacent ones of the heel strand segments are spaced farther apart than adjacent ones of the forefoot strand segments.
[0214] Clause 24 : The upper of any of clauses 19-23, wherein a ratio of an average spacing between adjacent ones of the heel strand segments to an average spacing between adjacent ones of the forefoot strand segments is greater than 1.5: 1.
[0215] Clause 25 : The upper of any of clauses 19-24, wherein a ratio of an average spacing between adjacent ones of the heel strand segments to an average spacing between adjacent ones of the forefoot strand segments is between 2: 1 and 5: 1.
[0216] Clause 26 : The upper of any of clauses 19-25, wherein a ratio of an average number of courses between adjacent ones of the heel strand segments to an average number of courses between adjacent ones of the forefoot strand segments is greater than 1.5: 1.
[0217] Clause 27: The upper of any of clauses 19-26, wherein a ratio of an average number of courses between adjacent heel strand segments in the heel strand segments to an average number of courses between adjacent forefoot strand segments in the forefoot strand segments is between 2: 1 and 5: 1.
[0218] Clause 28 : The upper of any of clauses 19-27, wherein a number of strand segments within the plurality of strand segments positioned on a medial side of the upper is the same as a number of strand segments positioned on a lateral side of the upper.
[0219] Clause 29 : The upper of any of clauses 19-28, wherein a number of strand segments within the plurality of strand segments positioned on a medial side of the upper is different than a number of strand segments positioned on a lateral side of the upper.
[0220] Clause 30 : The upper of any of clauses 19-29, wherein strand segments within the plurality of strand segments positioned on a medial side of the upper and strand segments positioned on a lateral side of the upper are symmetrically positioned relative to a longitudinal axis of the upper.
[0221] Clause 31 : The upper of any of clauses 19-31, wherein strand segments within the plurality of strand segments positioned on a medial side of the upper and strand segments positioned on a lateral side of the upper are asymmetrically positioned relative to a longitudinal axis of the upper.
[0222] Clause 32 : The upper of any of clauses 19-31, wherein the common portion is an anterior half of a throat area.
[0223] Clause 33 : The upper of any of clauses 19-32, wherein the common portion is a posterior half of a throat area.
[0224] Clause 34 : A knitted component for an upper, comprising: a knitted element having an outer perimeter defining a lower edge and a pair of heel edges of the knitted component and an inner perimeter defining at least one of a throat opening and an ankle opening, the knitted element having a plurality of courses extending between the outer perimeter and the inner perimeter; and one or more embedded strands integral with the knitted element, the one or more embedded strands forming a plurality of strand segments extending between the outer perimeter and the inner perimeter within respective courses of the plurality of courses of the knitted element.
[0225] Clause 35: The knitted component of clause 34, wherein the continuous strand is integrally formed within the knitted component such that the plurality of strand segments are spaced apart courses along a length of the knitted component.
[0226] Clause 36 : The knitted component of clause 34 or 35, wherein the knitted component includes a forefoot region, a midfoot region, and a heel region, and the plurality of strand segments includes one or more of a forefoot strand segment, a midfoot strand segment, and a heel strand segment.
[0227] Clause 37 : The knitted component of any of clauses 34-36, wherein the knitted component includes a medial side and a lateral side, and wherein the one or more embedded strands form a first plurality of strands on the medial side, and wherein the one or more embedded strands form a second plurality of strands on the lateral side.
[0228] Clause 38 : The knitted component of any of clauses 34-37, wherein a ratio of an average number of courses between adjacent heel strand segments in the heel strand segments to an average number of courses between adjacent forefoot strand segments in the forefoot strand segments is greater than 1.5: 1 or between 2: 1 and 5: 1.
[0229] Clause 39 : The knitted component of any of clauses 34-38, wherein the knitted component includes a medial side and a lateral side, and wherein a number of strand segments within the plurality of strand segments on the medial side is the same as a number of strand segments on the lateral side.
[0230] Clause 40 : The knitted component of any of clauses 34-39, wherein the knitted component includes a medial side and a lateral side, and wherein a number of strand segments within the plurality of strand segments on the medial side is different than a number of strand segments on the lateral side.
[0231] Clause 41 : A method of forming an article of footwear, comprising: forming at least a portion of an upper of the article of footwear by knitting a knitted element, the knitted element including a plurality of courses extending between an outer perimeter and an inner perimeter, the outer perimeter defining a lower portion of the upper and the inner perimeter defining an upper portion of the upper; and integrally forming a continuous strand into the knitted element during knitting to form a plurality of strand segments, the plurality of strand segments extending within respective ones of the plurality of courses of the knitted element between the outer perimeter and the inner perimeter.
[0232] Clause 42 : The method of clause 41, further comprising securing at least a portion of the lower portion of the knitted element to a sole structure.
[0233] Clause 43 The method of any of clauses 41-43, wherein the knitting of the knitted element includes sequentially knitting the medial side and the lateral side of the knitted element to form a single knitted component that is joinable together at a pair of edges in the heel region.
[0234] Clause 44 The method of any of clauses 41-43, wherein the continuous strand is integrated with the knitted component by embedding the continuous strand through courses within the plurality of courses.
[0235] Clause 45 The method of any of clauses 41-44, wherein the article of footwear includes a forefoot region, a midfoot region, and a heel region, and integrating the continuous strand to form a plurality of strand segments includes forming a forefoot strand segment that extends from the sole structure to a throat area of the upper.
[0236] Clause 46 The method of any of clauses 41-45, wherein the article of footwear includes a forefoot region, a midfoot region, and a heel region, and integrating the continuous strand to form a plurality of strand segments includes forming a forefoot strand segment that extends from the sole structure to a throat area, a midfoot strand segment that extends from the sole structure to the throat area, and a heel strand segment that extends from the sole structure to the throat area.
[0237] Clause 47 The method of any of clauses 41-46, wherein adjacent ones of the heel strand segments are spaced farther apart than adjacent ones of the forefoot strand segments.
[0238] Clause 48 The method of any of clauses 41-47, wherein a ratio of an average spacing between adjacent ones of the heel strand segments to an average spacing between adjacent ones of the forefoot strand segments is greater than 1.5: 1 or is between 2: 1 and 5: 1.
[0239] Clause 49 The method of any of clauses 41-48, wherein a ratio of an average number of courses between adjacent ones of the heel strand segments to an average number of courses between adjacent ones of the forefoot strand segments is greater than 1.5: 1 or is between 2: 1 and 5: 1.
[0240] Clause 50: The method of any of clauses 41-49, wherein the article of footwear includes a medial side and a lateral side, and wherein a number of the plurality of strands positioned on the medial side is the same as a number of the strands positioned on the lateral side.
[0241] Clause 51 : The method of any of clauses 41-50, wherein the article of footwear includes a medial side and a lateral side, and wherein a number of the plurality of strands positioned on the medial side is different than a number of the strands positioned on the lateral side.
[0242] Clause 52 : The method of any of clauses 41-51, wherein the article of footwear includes a medial side and a lateral side, and wherein the strands of the plurality of strands positioned on the medial side and the strands positioned on the lateral side are symmetrically positioned relative to a longitudinal axis of the article of footwear.
[0243] Clause 53 : The method of any of clauses 41-52, wherein the article of footwear includes a medial side and a lateral side, and wherein the strands of the plurality of strands positioned on the medial side and the strands of the plurality of strands positioned on the lateral side are asymmetrically positioned relative to a longitudinal axis of the article of footwear.
[0244] Clause 54 : A knitted component comprising a plurality of knitted structures arranged in at least a partial radial configuration.
[0245] Clause 55 : The knitted component of clause 54, further comprising an article comprising the knitted component.
[0246] Clause 56 : The knitted component of clause 55, wherein the article is an article of footwear or an article of apparel.
[0247] Clause 57 : An upper comprising a knitted component having a plurality of interlooped courses defining wedge portions of the knitted component, each wedge portion defined by a portion of an outer perimeter of the knitted component, a portion of an inner perimeter of the knitted component, a first knitted course extending from the outer perimeter to the inner perimeter, and a second knitted course extending from the outer perimeter to the inner perimeter.
[0248] Clause 58 : The upper of clause 57, wherein the portion of the inner perimeter defining a wedge portion has a shorter length than the portion of the outer perimeter defining a wedge portion.
[0249] Clause 59: The upper of any of clauses 57-59, wherein each wedge-shaped portion includes a full-length course positioned between the first course and the second course and extending from the outer perimeter to the inner perimeter, and includes a partial-length course positioned between the first course and the second course and extending from the outer perimeter and terminating prior to the inner perimeter.
[0250] Clause 60 : The upper of any of clauses 57-59, wherein at least some of the wedge-shaped portions of the knitted component form a forefoot region of the upper.
[0251] Clause 61 : The upper of any of clauses 57-60, wherein at least some of the wedge-shaped portions of the knitted component form a midfoot region of the upper.
[0252] Clause 62 : The upper of any of clauses 57-60, wherein at least some of the wedge-shaped portions of the knitted component form a heel region of the upper.
[0253] Aspects of the disclosure have been described as being illustrative rather than limiting in nature. Alternative aspects to the variations described herein will become apparent to those possessing ordinary skill in the art from a reading of the foregoing description. Alternative means of implementing the improvements described herein will become apparent to those with skill in the art and are intended to be within the scope of the disclosure. Modifications of structure, method of operation, or both, by one of ordinary skill in the art having the benefit of this description can be practiced without departing from the scope of the subject matter presented herein.
[0254] It will be understood that certain features and subcombinations are of utility and can be employed without reference to other features and subcombinations and are contemplated within the scope of the claims. Not all of the steps listed in each figure is required to be performed in the specific order described.
Claims
1. An upper, comprising: a knitted component that is flatbed knitted and forms at least a forefoot region and a midfoot region of the upper and has an outer perimeter, the forefoot region and the midfoot region being integrally knitted, the forefoot region having a first course that extends continuously between the outer perimeter in the forefoot region and a common portion of the knitted component, the midfoot region having a second course that extends continuously between the outer perimeter in the midfoot region and the common portion of the knitted component, the first course and the second course extending at an angle relative to one another; wherein the knitted component forms a heel region of the upper, the heel region having a third course, and wherein the knitted component includes a fourth course that extends at least partially in the heel region and a fifth course that extends at least partially in the forefoot region, the fourth course and the fifth course each extending parallel to an axis that extends between a portion of the forefoot region configured to cover a first metatarsal bone of a wearer to a lateral portion of the heel region or between a portion of the forefoot region configured to cover a fifth metatarsal bone of a wearer to a medial portion of the heel region.
2. The upper of claim 1, wherein the third course extends continuously from the outer perimeter in the heel region to the common portion of the knitted component.
3. The upper of claim 1, wherein the common portion of the knitted component is a throat area of the upper.
4. The upper of claim 3, wherein the common portion of the knitted component is an anterior portion of the throat area of the upper.
5. The upper of claim 1, wherein the knitted component forms a tongue of the upper.
6. The upper of claim 5, wherein the tongue is integrally knitted with at least the forefoot region.
7. The upper of claim 1, wherein the knitted component further includes an embedded strand having a plurality of strand segments, each strand segment extending between the outer perimeter and the common portion.
8. The upper of claim 7, wherein one or more strand segments within the plurality of strand segments are positioned within the forefoot region of the upper.
9. The upper of claim 7, wherein the common portion includes a throat area of the upper.
10. The upper of claim 1, wherein the upper comprises a portion of an article of footwear.
11. An upper, comprising: a knitted element that defines at least a portion of an outer perimeter of the upper and has a plurality of courses that extend between the outer perimeter of the upper and a throat region; and at least one embedded strand that is integral with the knitted element such that the at least one embedded strand forms a plurality of strand segments that extend between the outer perimeter and the throat region along respective ones of the plurality of courses of the knitted element, wherein at least a portion of the plurality of strand segments extend at an angle relative to one another. wherein the knit element forms at least a heel region and a forefoot region of the upper, and wherein the knit element includes courses extending at least partially in the heel region and courses extending at least partially in the forefoot region, the courses extending at least partially in the heel region and the courses extending at least partially in the forefoot region each extending parallel to an axis extending between a portion of the forefoot region configured to cover a first metatarsal bone of a wearer to a lateral portion of the heel region or between a portion of the forefoot region configured to cover a fifth metatarsal bone of a wearer to a medial portion of the heel region.
12. The upper of claim 11, wherein the at least one embedded strand is integral with the knit element such that the plurality of strand segments are spaced apart along a length of the knit element.
13. The upper of claim 11, wherein the plurality of strand segments includes a plurality of midfoot strand segments located in a midfoot region of the upper.
14. The upper of claim 11, wherein the plurality of strand segments includes a plurality of heel strand segments extending from the outer perimeter to the throat region.
15. The upper of any of claims 11-14, wherein adjacent heel strand segments are spaced farther apart than adjacent forefoot strand segments.
16. The upper of any of claims 11-14, wherein a ratio of an average spacing between adjacent heel strand segments to an average spacing between adjacent forefoot strand segments is greater than 1.5:
1.
17. The upper of any of claims 11-14, wherein a ratio of an average spacing between adjacent heel strand segments to an average spacing between adjacent forefoot strand segments is between 2: 1 and 5:
1.
18. The upper of any of claims 11-14, wherein a ratio of an average number of courses between adjacent heel strand segments to an average number of courses between adjacent forefoot strand segments is greater than 1.5:
1.
19. The upper of any of claims 11-14, wherein a ratio of an average number of courses between adjacent heel strand segments to an average number of courses between adjacent forefoot strand segments is between 2: 1 and 5:
1.
20. The upper of any of claims 11-14, wherein a number of strand segments positioned on a medial side of the upper is the same as a number of strand segments positioned on a lateral side of the upper.
21. The upper of any of claims 11-14, wherein a number of strand segments positioned on a medial side of the upper is different than a number of strand segments positioned on a lateral side of the upper.
22. The upper of any of claims 11-14, wherein the strands positioned within the plurality of strand segments on the medial side of the upper and the strands positioned on the lateral side of the upper are symmetrically positioned relative to a longitudinal axis of the upper.
23. The upper of any of claims 11-14, wherein the strands positioned within the plurality of strand segments on the medial side of the upper and the strands positioned on the lateral side of the upper are asymmetrically positioned relative to a longitudinal axis of the upper.
24. The upper of any of claims 11-14, wherein the common portion is an anterior half of the throat area.
25. The upper of any of claims 11-14, wherein the common portion is a posterior half of the throat area.
26. A knitted component for an upper, comprising: a knitted element having an outer perimeter defining a lower edge and a pair of heel edges of the knitted component and an inner perimeter defining at least one of a throat opening and an ankle opening, the knitted element having a plurality of courses extending between the outer perimeter and the inner perimeter; and one or more embedded strands integral with the knitted element, the one or more embedded strands forming a plurality of strand segments extending between the outer perimeter and the inner perimeter within respective ones of the plurality of courses of the knitted element; wherein the knitted element forms at least a heel region and a forefoot region of the upper, and wherein the knitted element includes a course extending at least partially in the heel region and a course extending at least partially in the forefoot region, the course extending at least partially in the heel region and the course extending at least partially in the forefoot region each extending parallel to an axis extending between a portion of the forefoot region configured to cover a first metatarsal bone of a wearer to a lateral portion of the heel region or between a portion of the forefoot region configured to cover a fifth metatarsal bone of a wearer to a medial portion of the heel region.
27. The knitted component of claim 26, wherein the one or more embedded strands are integrally formed within the knitted component such that the plurality of strand segments are spaced apart courses along a length of the knitted component.
28. The knitted component of claim 26, wherein the knitted component includes a forefoot region, a midfoot region, and a heel region, and the plurality of strand segments includes one or more of a forefoot strand segment, a midfoot strand segment, and a heel strand segment.
29. The knitted component of claim 26, wherein the knitted component includes a medial side and a lateral side, and wherein the one or more embedded strands form a first plurality of strands on the medial side, and wherein the one or more embedded strands form a second plurality of strands on the lateral side.
30. The knitted component of any of claims 26-29, wherein a ratio of an average number of courses between adjacent heel courses in the heel course segments to an average number of courses between adjacent forefoot courses in the forefoot course segments is greater than 1.5: 1 or between 2: 1 and 5:
1.
31. The knitted component of claim 29, wherein a number of course segments of the plurality of course segments on the medial side is the same as a number of course segments of the plurality of course segments on the lateral side.
32. The knitted component of claim 29, wherein a number of course segments of the plurality of course segments on the medial side is different than a number of course segments of the plurality of course segments on the lateral side.
33. The knitted component of claim 26, wherein the knitted component comprises a portion of an article of footwear.
34. The knitted component of claim 26, wherein at least a portion of the plurality of courses is configured to form a set of wedge-shaped portions, each wedge-shaped portion having a first edge at the outer perimeter, a second edge at the inner perimeter, and at least one wedge-shaped course extending between the outer perimeter and the inner perimeter.
35. The knitted component of claim 34, wherein the set of wedge-shaped portions is located in a forefoot region of the upper.
36. A method of forming an article of footwear, comprising: forming at least a portion of an upper by knitting a knitted element, the knitted element including a plurality of courses extending between an outer perimeter and an inner perimeter, the outer perimeter defining a lower portion of the upper and the inner perimeter defining an upper portion of the upper; and integrally forming a continuous strand into the knitted element during knitting to form a plurality of course segments, the plurality of course segments extending between the outer perimeter and the inner perimeter within respective courses of the plurality of courses of the knitted element, wherein the knitted element forms at least a heel region and a forefoot region of the upper, and wherein the knitted element includes a course extending at least partially in the heel region and a course extending at least partially in the forefoot region, the course extending at least partially in the heel region and the course extending at least partially in the forefoot region each extending parallel to an axis extending between a portion of the forefoot region configured to cover a first metatarsal bone of a wearer to a lateral portion of the heel region or between a portion of the forefoot region configured to cover a fifth metatarsal bone of a wearer to a medial portion of the heel region.
37. The method of claim 36, further comprising securing at least a portion of a lower portion of the knitted element to a sole structure.
38. The method of claim 36 or 37, wherein the knitting of the knitted element includes sequentially knitting a medial side and a lateral side of the knitted element to form a single knitted component that can be joined together at a pair of edges in a heel region.
39. The method of any of claims 36-37, wherein the continuous strand is integrated with the knitted element by embedding the continuous strand through courses within the plurality of courses.
40. The method of any of claims 36-37, wherein the article of footwear includes a forefoot region, a midfoot region, and a heel region, and integrating the continuous strand to form a plurality of strand segments includes forming a forefoot strand segment that extends from a sole structure to a throat region of the upper.
41. The method of any of claims 36-37, wherein the article of footwear includes a forefoot region, a midfoot region, and a heel region, and integrating the continuous strand to form a plurality of strand segments includes forming a forefoot strand segment that extends from a sole structure to a throat region, a midfoot strand segment that extends from the sole structure to the throat region, and a heel strand segment that extends from the sole structure to the throat region.
42. The method of any of claims 36-37, wherein adjacent heel strand segments in the heel strand segments are spaced farther apart than adjacent forefoot strand segments in the forefoot strand segments.
43. The method of any of claims 36-37, wherein a ratio of an average spacing between adjacent heel strand segments in the heel strand segments to an average spacing between adjacent forefoot strand segments in the forefoot strand segments is greater than 1.5: 1 or between 2: 1 and 5:
1.
44. The method of any of claims 36-37, wherein a ratio of an average number of courses between adjacent heel strand segments in the heel strand segments to an average number of courses between adjacent forefoot strand segments in the forefoot strand segments is greater than 1.5: 1 or between 2: 1 and 5:
1.
45. The method of any of claims 36-37, wherein the article of footwear includes a medial side and a lateral side, and wherein a number of strand segments within the plurality of strand segments positioned on the medial side is the same as a number of strand segments positioned on the lateral side.
46. The method of any of claims 36-37, wherein the article of footwear includes a medial side and a lateral side, and wherein a number of strand segments within the plurality of strand segments positioned on the medial side is different than a number of strand segments positioned on the lateral side.
47. The method of any of claims 36-37, wherein the article of footwear includes a medial side and a lateral side, and wherein strand segments within the plurality of strand segments positioned on the medial side and strand segments positioned on the lateral side are symmetrically positioned relative to a longitudinal axis of the article of footwear.
48. The method of any of claims 36-37, wherein the article of footwear includes a medial side and a lateral side, and wherein strand segments within the plurality of strand segments positioned on the medial side and strand segments within the plurality of strand segments positioned on the lateral side are asymmetrically positioned relative to a longitudinal axis of the article of footwear.
49. An article of footwear incorporating the upper of any of claims 1-25 or the knitted component of any of claims 26-35.
Citation Information
Patent Citations
Vamp, knitted component, and article
CN219500511U
Article Of Footwear Incorporating A Knitted Component
US20120233882A1