JP6302478B2 - Knit component of footwear using ankle inlay strand - Google Patents

Description

  The present invention relates to a knit component of footwear using an ankle inlay strand.

  Conventional footwear products generally include two main elements: an upper and a sole structure. The upper is secured to the sole structure and forms a cavity within the footwear to receive the foot comfortably and stably. The sole structure is secured to the lower area of the upper so that it lies between the upper and the ground. For example, in athletic footwear, the sole structure may include a midsole and an outsole. The midsole may include a polymeric foam material that reduces ground reaction forces and reduces stress on the feet and legs when walking, running, and during other walking activities. In addition, the midsole may include liquid-filled chambers, plates, moderators, or other elements that further reduce force, increase stability, or affect foot movement. The outsole is fixed to the lower surface of the midsole and provides a ground locking portion of a sole structure formed of a durable wear-resistant material such as rubber. The sole structure may include an insole disposed within the cavity and proximate to the underside of the foot to enhance footwear comfort.

  The upper generally extends around the heel region of the foot, along the instep and toe areas of the foot, along the medial and lateral sides of the foot. In some footwear products, such as basketball footwear and boots, the upper may extend upward and around the ankle to provide support or protection to the ankle. Access to the cavity inside the upper is generally provided by an ankle opening in the heel area of the footwear. In order to adjust the comfort of the upper, a lace system is often incorporated into the upper, which allows the foot to enter and withdraw the foot into the cavity in the upper. The lacing system also allows the wearer to accommodate specific dimensions of the upper, particularly the circumference, to accommodate various sized feet. In addition, the upper may include a tongue that extends under the lace system to increase the adjustability of the footwear, and the upper may incorporate a heel counter to limit heel movement. .

  Various material elements (eg, woven fabrics, polymer foams, polymer sheets, leather, synthetic leather) are conventionally utilized in manufacturing uppers. For example, in athletic footwear, the upper may have multiple layers, each containing various bonding material elements. As an example, the material elements may be selected to provide stretch-resistance, abrasion resistance, flexibility, breathability, compressibility, comfort and quick-drying in different areas of the upper. In order to impart different properties to different areas of the upper, the material elements are cut into the desired shape and then usually joined together by sewing or adhesive. Also, material elements are often joined in a layered configuration to impart multiple properties to the same region.

  As the number and type of material elements incorporated into the upper increases, the time and cost associated with the transportation, storage, cutting and joining of material elements also increases. More waste material from the cutting and sewing process accumulates as the number and type of material elements incorporated into the upper increases. In addition, the greater the number of material elements in the upper, the more difficult it may be to recycle than an upper made from fewer and fewer types of material elements. Therefore, by reducing the number of material elements used for the upper, waste can be reduced while improving the manufacturing efficiency and recyclability of the upper.

  An article of footwear having an upper and a sole structure secured to the upper is disclosed below. The upper includes a knit element, an inlay strand, and a lace. The knitted element is formed from at least one yarn and extends from the throat region of the upper to the heel region. The inlay strand extends from the throat region through the knit element to the back of the heel region, and the inlay strand forms a loop in the throat region. The lace extends through the loop.

  Also disclosed below is an article of footwear having an upper that includes a knit element, an inlay strand, and a lace. The knitted element forms a portion of the outer surface of the upper and an inner surface opposite the upper, the inner surface defining a cavity for receiving a foot. The knit element extends from the throat area of the upper to the heel area, and the knit element defines an ankle opening in the upper that provides access to the cavity. In addition, the knit element defines a plurality of openings provided in the throat region. The inlay strands extend from the throat region through the knit element to the back of the heel region, and the inlay strands extend at least partially around those openings in the throat region. The laces extend through these openings.

  The method of manufacturing an article of footwear of the present invention includes utilizing a knitting process that forms a knitted element from at least one yarn. The strand is inserted into the knitted element during the knitting process. In addition, the knit component is incorporated into the upper of the footwear product with its knit element and strand extending from the throat region of the upper to the back of the heel region.

  The novel advantages and features that characterize the various aspects of the invention are pointed out with particularity in the appended claims. However, for a fuller understanding of the advantages and features of novelty, reference may be made to the following descriptive matter and accompanying drawings that describe and illustrate various configurations and concepts related to the invention.

  The foregoing summary, as well as the following detailed description, will be better understood when read in conjunction with the appended drawings.

It is a perspective view of footwear products. It is an elevational view of the outer side of the footwear product. It is an elevational view of the inner side of the footwear product. 4 is a cross-sectional view of the article of footwear defined by the cut line 4A of FIGS. 2 and 3. FIG. FIG. 4 is a cross-sectional view of the article of footwear defined by the cut line 4B of FIGS. 2 and 3. FIG. 4 is a cross-sectional view of the article of footwear defined by cut line 4C in FIGS. 2 and 3. FIG. 2 is a top plan view of a first knit component forming part of the upper of the footwear product. FIG. 2 is a bottom plan view of a first knit component. FIG. 6 is a cross-sectional view of the first knit component defined by section line 7A in FIG. 5. FIG. 6 is a cross-sectional view of the first knit component defined by section line 7B in FIG. 5. FIG. 6 is a cross-sectional view of the first knit component defined by section line 7C in FIG. FIG. 6 is a cross-sectional view of the first knit component defined by section line 7D of FIG. FIG. 6 is a cross-sectional view of the first knit component defined by section line 7E of FIG. It is a top view which shows the knit structure of a 1st knit component. It is a top view which shows the knit structure of a 1st knit component. FIG. 6 is a top plan view of a second knit component forming part of the upper of the footwear product. FIG. 6 is a bottom plan view of a second knit component. It is a typical upper top view of the 2nd knit component showing a knit zone. FIG. 10 is a cross-sectional view of the second knit component defined by section line 12A in FIG. FIG. 10 is a cross-sectional view of the second knit component defined by section line 12B of FIG. FIG. 10 is a cross-sectional view of the second knit component defined by section line 12C in FIG. FIG. 10 is a cross-sectional view of the second knit component defined by section line 12D of FIG. FIG. 10 is a cross-sectional view of the second knit component defined by section line 12E of FIG. It is a loop figure of a knit zone. It is a loop figure of a knit zone. It is a loop figure of a knit zone. It is a loop figure of a knit zone. It is a loop figure of a knit zone. It is a loop figure of a knit zone. It is a loop figure of a knit zone. It is a loop figure of a knit zone. FIG. 6 is a top plan view corresponding to FIG. 5 showing a further configuration of the first knit component. FIG. 6 is a top plan view corresponding to FIG. 5 showing a further configuration of the first knit component. FIG. 6 is a top plan view corresponding to FIG. 5 showing a further configuration of the first knit component. It is a perspective view of a knitting machine. It is an elevation view of the combination feeder as seen from the knitting machine. It is an elevation view of the combination feeder as seen from the knitting machine. It is an elevation view of the combination feeder as seen from the knitting machine. FIG. 17 is an elevational view corresponding to FIG. 16, showing internal components of the combination feeder. FIG. 20 is an elevational view corresponding to FIG. 19 and shows the operation of the combination feeder. FIG. 20 is an elevational view corresponding to FIG. 19 and shows the operation of the combination feeder. FIG. 20 is an elevational view corresponding to FIG. 19 and shows the operation of the combination feeder. It is a typical perspective view of the knitting process using a combination feeder and the conventional feeder. It is a typical perspective view of the knitting process using a combination feeder and the conventional feeder. It is a typical perspective view of the knitting process using a combination feeder and the conventional feeder. It is a typical perspective view of the knitting process using a combination feeder and the conventional feeder. It is a typical perspective view of the knitting process using a combination feeder and the conventional feeder. It is a typical perspective view of the knitting process using a combination feeder and the conventional feeder. It is a typical perspective view of the knitting process using a combination feeder and the conventional feeder. It is a typical perspective view of the knitting process using a combination feeder and the conventional feeder. It is a typical perspective view of the knitting process using a combination feeder and the conventional feeder. It is typical sectional drawing of the knitting process which shows the position of a combination feeder and the conventional feeder. It is typical sectional drawing of the knitting process which shows the position of a combination feeder and the conventional feeder. It is typical sectional drawing of the knitting process which shows the position of a combination feeder and the conventional feeder. It is a typical perspective view which shows another side surface of a knitting process. It is a perspective view of another structure of a knitting machine. FIG. 6 is an elevational view showing a further configuration of the footwear product. FIG. 6 is an elevational view showing a further configuration of the footwear product. FIG. 6 is an elevational view showing a further configuration of the footwear product. FIG. 26 is a cross-sectional view of the footwear product taken along line 28 of FIG. 25. FIG. 29 is a plan view corresponding to FIG. 5, showing the first knit component shown in FIGS. 25 to 28. FIG. 6 is a side elevational view showing a further configuration of the footwear product. FIG. 6 is a side elevational view showing a further configuration of the footwear product. FIG. 6 is a side elevational view showing a further configuration of the footwear product. FIG. 6 is a side elevational view showing a further configuration of the footwear product. FIG. 6 is a side elevational view showing a further configuration of the footwear product. It is an elevation view which shows another structure of footwear products. It is an elevation view which shows another structure of footwear products. FIG. 30 is a plan view corresponding to FIGS. 5 and 29, showing the first knit component shown in FIGS. 31 and 32. FIG.

  The following description and the accompanying drawings disclose various concepts relating to the knit component and the manufacture of the knit component. Although the knitted component may be utilized in a variety of products, an footwear product incorporating one of the knitted components is disclosed below as an example. In addition to footwear, knitted components are other types of clothing (eg, shirts, pants, socks, outerwear, underwear), sports equipment (eg, golf bags, baseball and football gloves, regulatory structures for soccer balls) Body), containers (eg, backpacks, bags), and furniture decorations (eg, chairs, sofas, car seats). Knit components may be used for bed coverings (eg, sheets, blankets), table coverings, towels, flags, tents, sails and parachutes. Knit components include structures for automotive and aerospace industries, filter materials, medical fabrics (eg bandages, cotton swabs, grafts), geotextiles to reinforce dikes, agrotextiles to protect crops And industrial textiles including industrial clothing that protects or insulates from heat and radiation. Accordingly, the knitted components and other concepts disclosed herein may be incorporated into various products for both personal and industrial purposes.

<Composition of footwear>
A footwear product 100 including a sole structure 110 and an upper 120 is illustrated in FIGS. Although the footwear 100 is depicted as having a general configuration suitable for running, the concepts associated with the footwear 100 are, for example, baseball shoes, basketball shoes, cycling shoes, football shoes, tennis shoes, soccer shoes, training shoes. It may also apply to various other athletic footwear types, including walking shoes and hiking boots. This concept may also be applied to types of footwear that are generally considered non-athletic, including dress shoes, loafers, sandals and work shoes. Accordingly, the concepts disclosed with respect to footwear 100 apply to a variety of footwear types.

  For reference, the footwear 100 may be divided into roughly three regions, a foot region 101, a middle foot region 102, and a heel region 103. The toe region 101 generally includes a portion of the footwear 100 corresponding to the toes and joints connecting the metatarsals and phalanges. The midfoot region 102 generally includes the portion of the footwear 100 that corresponds to the arch area of the foot. The heel region 103 generally corresponds to the back of the foot including the ribs. The footwear 100 also includes an outer side portion 104 and an inner side portion 105 that extend through each of the regions 101-103 and correspond to both sides of the footwear 100. More specifically, the outer side portion 104 corresponds to the outer portion of the foot (that is, the surface facing away from the opposite foot), and the inner side portion 105 corresponds to the inner portion of the foot (that is, the opposite foot). Facing side). Regions 101-103 and sides 104-105 are not intended to delimit the exact area of footwear 100. Rather, the regions 101-103 and the sides 104-105 are intended to represent a general area of the footwear 100 to assist in the following description. In addition to footwear 100, regions 101-103 and sides 104-105 may apply to sole structure 110, upper 120, and their individual elements.

  The sole structure 110 is fixed to the upper 120 and extends between the foot and the ground when the footwear 100 is worn. The main elements of the sole structure 110 are a midsole 111, an outsole 112, and an insole 113. The midsole 111 is fixed to the lower surface of the upper 120 and reduces the ground reaction force when compressed between the foot and the ground when walking, running, or during other walking activities (ie May be formed from a compressible polymer foam element (eg, polyurethane or ethyl vinyl acetate foam) that will be a cushioning material. In further configurations, the midsole 111 may incorporate plates, moderators, liquid-filled chambers, lasting elements, or motion control members that further reduce force, increase stability, and affect foot movement, or midsole 21 may be formed primarily from a liquid filled chamber.

  The outsole 112 may be formed from a wear-resistant rubber material fixed to the lower surface of the midsole 111 and woven to provide traction. The insole 113 is disposed within the upper 120 and is positioned to extend below the lower surface of the foot to enhance the comfort of the footwear 100. While this configuration of the sole structure 110 provides one example of a sole structure that may be used in connection with the upper 120, various other conventional or non-conventional configurations of the sole structure 110 are also utilized. May be. Accordingly, the characteristics of the sole structure utilized with the sole structure 110 or the upper 120 may vary significantly.

  Upper 120 defines a cavity in footwear 100 for receiving and securing a foot to sole structure 110. The cavity is shaped to accommodate the foot and extends along the lateral side of the foot, along the medial side of the foot, above the foot, around the heel, and below the foot. Access to the cavity is provided by an ankle opening 121 located at least in the heel region 103. The laces 122 extend through the various openings 123 in the upper 120 to allow the wearer to adjust the dimensions of the upper 120 to accommodate various proportions of feet. More specifically, the laces 122 allow the wearer to tighten the upper 120 around the foot, and the laces 122 allow the foot to enter and exit from the wearer's cavity (ie, through the ankle opening 121). For ease, upper 120 can be loosened. Further, the upper 120 includes a tongue 124 that extends below the laces 122 and the opening 123 to increase the comfort of the footwear 100. In a further configuration, the upper 120 includes (a) a heel counter that increases stability in the heel region 103, (b) a toe guard formed of a wear resistant material in the toe region 101, and (c) And additional elements such as tags with notes and material information.

  Many conventional footwear uppers are formed from a number of material elements (e.g., fabrics, polymer foams, polymer sheets, leather, synthetic leather) joined together, for example, by sewing or gluing. In contrast, most of the upper 120 is formed from a knitted component 130, passing through each of the regions 101-103 along both the outer side 104 and the inner side 105, above the foot region 101, Furthermore, it extends around the heel region 103. In addition, the knit component 130 forms portions of both the outer surface of the upper 120 and the opposing inner surface. As such, the knitted component 130 defines at least a portion of the cavity within the upper 120. In some configurations, the knitted component 130 may also extend under the foot. However, with reference to FIGS. 4A-4C, a strobed insole 125 is secured to the upper surface of the knit component 130 and midsole 111, thereby forming a portion of the upper 120 that extends below the insole 113. doing.

<Configuration of knit components>
In FIGS. 5 and 6, the knit component 130 is illustrated separately from the rest of the footwear 100. The knit component 130 is formed from an integral knit structure. As utilized herein, a knitted component (eg, knitted component 130) is defined as being formed from a “unitary knit structure” when formed as a one-piece element in a knitting process. That is, the knitting process substantially forms the various features and structures of the knitted component 130 without the need for significant additional manufacturing steps or processes. Although the portions of the knitted component 130 may be joined together after the knitting process (eg, the edges of the knitted component 130 are joined together), the knitted component 130 is still formed as one piece because it is formed as a one-piece knit element. It remains formed from the knit structure. Also, the knit component 130 can still be formed from a unitary knit structure when other elements are added after the knitting process (e.g., straps 122, tongue 124, logo, trademark, notes and material information). It has been done.

  The main elements of the knit component 130 are a knit element 131 and an inlay strand 132. The knit element 131 is formed from at least one yarn that is manipulated (eg, using a knitting machine) to form a plurality of interlocking loops that define various courses and wales. That is, the knit element 131 has a knit fabric structure. The inlay strand 132 extends through the knit element 131 and passes between the various loops in the knit element 131. The inlay strand 132 generally extends along the course in the knit element 131, but the inlay strand 132 may extend along the wale of the knit element 131. The advantages of inlay strand 132 include providing support, stability and structure. For example, the inlay strand 132 helps secure the upper 120 around the foot, restricts deformation in the area of the upper 120 (eg, provides stretch resistance), and works in conjunction with the lace 122 to the footwear 100. Increase the fit.

  The knit element 131 has a generally U-shaped configuration that is outlined by a peripheral edge 133, a pair of heel edges 134 and an inner edge 135. When incorporated in the footwear 100, the peripheral edge 133 is placed on the upper surface of the midsole 111 and joined to the strobed insole 125. The heel edges 134 are joined together and extend perpendicular to the heel region 103. In some configurations of footwear 100, the material elements may cover the seams between heel edges 134 to reinforce the seams and enhance the aesthetic appeal of footwear 100. Inner edge 135 forms an ankle opening 121 and extends forward to the area where lace 122, opening 123 and tongue 124 are located. In addition, the knit element 131 has a first surface 136 and a second surface 137 opposite to the first surface 136. The first surface 136 forms part of the outer surface of the upper 120, while the second surface 137 forms part of the inner surface of the upper 120, thus defining at least a portion of the cavity in the upper 120.

  As described above, the inlay strand 132 extends through the knit element 131 and passes between the various loops in the knit element 131. More specifically, the inlay strand 132 is disposed within the knit structure of the knitted element 131, which is in the area of the inlay strand 132, as illustrated in FIGS. 7A-7D, with the surfaces 136 and 137. There may be a single fabric layer configuration in between. As such, when the knit component 130 is incorporated into the footwear 100, the inlay strand 132 is disposed between the outer surface and the inner surface of the upper 120.

  In some configurations, the portion of inlay strand 132 may be visible or exposed to one or both of surfaces 136 and 137. For example, the inlay strand 132 may rest on one of the surfaces 136 and 137, or the knit element 131 may form a recess or opening through which the inlay strand passes. An advantage of placing the inlay strand 132 between the surfaces 136 and 137 is that the knit element 131 protects the inlay strand 132 from scratching and snuggling.

  Referring to FIGS. 5 and 6, the inlay strand 132 extends from the peripheral edge 133 toward the inner edge 135, adjacent to the side of one opening 123, around at least a part of the opening 123, and on the opposite side. Until the peripheral portion 133 returns. When the knitted component 130 is incorporated into the footwear 100, the knitted element 131 moves from the throat region of the upper 120 (i.e., where the lace 122, opening 123 and tongue 124 are located) to the lower area of the upper 120 (i.e. , Where the knit element 131 meets the sole structure 110). In this configuration, the inlay strand 132 also extends from the throat region to the lower section. More specifically, the inlay strand repeatedly passes through the knit element 131 from the throat area to the lower area.

  The knit element 131 may be formed in various ways, but the course of the knit structure extends in substantially the same direction as the inlay strand 132. That is, the course may extend in a direction extending between the throat region and the lower section. In this way, most of the inlay strand 132 extends along the course in the knit element 131. However, in the area adjacent to the opening 123, the inlay strand 132 may extend along a wale in the knitted element 131. More specifically, the section of the inlay strand 132 that is parallel to the inner edge 135 may extend along the wale.

  As described above, the inlay strand 132 repeatedly passes through the knit element 131. Referring to FIGS. 5 and 6, the inlay strand 132 repeatedly exits the knit element 131 at the periphery 133 and then reenters the knit element 131 at another location on the periphery 133, thereby causing the periphery A loop is formed along 133. An advantage of this configuration is that each section of inlay strand 132 extending between the throat region and the lower section may be independently tensioned, relaxed, or otherwise adjusted during the footwear 100 manufacturing process. . That is, before fixing the sole structure 110 to the upper 120, the section of the inlay strand 132 may be adjusted independently so as to have an appropriate tension.

  Compared to the knit element 131, the inlay strand 132 may exhibit greater stretch resistance. That is, the inlay strand 132 may not extend more than the knit element 131. Given that multiple sections of the inlay strand 132 extend from the throat region of the upper 120 to the lower region of the upper 120, the inlay strand 132 resists stretch resistance in the portion of the upper 120 between the throat region and the lower region. Gives sex. Alternatively, tension may be applied to the inlay strand 132 by applying tension to the lace 122, thereby guiding the portion of the upper 120 between the throat region and the lower section to rest on the foot. In this way, the inlay strand 132 works with the laces 122 to improve the fit of the footwear 100.

  The knit element 131 may incorporate various types of yarns that impart different properties to the individual areas of the upper 120. That is, an area of the knit element 131 may be formed from a first type of yarn that imparts a first property set, and another area of the knit element 131 may be formed of a second type of yarn that imparts a second property set. May be. In this configuration, characteristics may be changed throughout the upper 120 by selecting specific yarns in different areas of the knit element 131.

  The properties that a particular type of yarn will impart to a region of the knitted element 131 will depend in part on the materials forming the various filaments and fibers within the yarn. For example, cotton provides a soft hand, natural aesthetics, and biodegradability. Elastane and stretchable polyester provide substantial stretch and resilience, respectively, and stretchable polyester also provides recyclability. Rayon is excellent in gloss and provides hygroscopicity. Wool also provides high hygroscopicity in addition to thermal insulation and biodegradability. Nylon is a durable, scratch-resistant material that is relatively strong. Polyester is a hydrophobic material and also provides a relatively high durability. In addition to the material, other aspects of the yarn selected for the knit element 131 may affect the properties of the upper 120. For example, the yarn forming the knitted element 131 may be a monofilament or a multifilament yarn. The yarns may include individual filaments that are formed from different materials. In addition, the yarn may include filaments formed from two or more different materials, such as a filament having a sheath core configuration or a composite yarn using two types of filaments formed from different materials. Different degrees of twisting and crimping and different deniers may affect the characteristics of the upper 120. Thus, both the material forming the yarn and the other side of the yarn may be selected to impart different properties to the individual areas of the upper 120.

  Similar to the yarn forming the knitted element 131, the structure of the inlay strand 132 may also vary significantly. In addition to yarn, inlay strand 132 may have, for example, a filament (eg, single fiber), thread, rope, strip, cable, or chain configuration. The inlay strand 132 may be thicker than the yarn forming the knit element 131. In some configurations, the inlay strand 132 may have a thickness that is significantly greater than the yarn of the knitted element 131.

  The cross-sectional shape of the inlay strand 132 may be round, but a triangular shape, a square shape, a rectangular shape, an elliptical shape, or an irregular shape may be used. The material forming the inlay strand 132 may also include any of the yarn materials within the knitted element 131, such as cotton, elastane, polyester, rayon, wool and nylon. As previously described, the inlay strand 132 may exhibit greater stretch resistance than the knit element 131. Thus, suitable materials for inlay strand 132 include glass, aramid (eg, para-aramid and meta-aramid), ultrahigh molecular weight polyethylene, and various engineering filaments utilized in high tensile strength applications, including liquid crystal polymers. May be included. As another example, a polyester braid may be used as the inlay strand 132.

  An example of a configuration suitable for a portion of the knit component 130 is illustrated in FIG. 8A. In this configuration, the knit element 131 includes yarns 138 that form a plurality of interlocking loops that define a plurality of horizontal courses and vertical wales. Inlay strands 132 extend along one of the courses and are alternately disposed (a) behind the loop formed from yarn 138 and (b) before the loop formed from yarn 138. In practice, the inlay strand 132 is threaded through the structure formed by the knit element 131. In this configuration, the yarns 138 form each of the courses, but additional yarns may form one or more courses, or may form part of one or more courses.

  Another embodiment of a configuration suitable for a portion of the knit component 130 is illustrated in FIG. 8B. In this configuration, the knit element 131 includes a yarn 138 and another yarn 139. Yarns 138 and 139 are spliced to jointly form a plurality of interlocking loops that define a plurality of horizontal courses and vertical wales. That is, the yarns 138 and 139 are running parallel to each other. Similar to the configuration of FIG. 8A, inlay strand 132 extends along one of the courses, (a) behind a loop formed from yarns 138 and 139, and (b) formed from yarns 138 and 139. Are arranged alternately before and after the loop.

  The advantage of this configuration is that the respective characteristics of yarns 138 and 139 may be present in this area of knit component 130. For example, if the color of the yarn 138 appears mainly on the surface of the various stitches of the knitted element 131 and the color of the yarn 139 appears mainly on the back of the various stitches of the knitted element 131, the yarns 138 and 139 are different colors. You may have. As another example, if the yarn 138 appears primarily on the first surface 136 and the yarn 139 primarily appears on the second surface 137, the yarn 139 is softer than the yarn 138 and more comfortable to the foot. You may form from.

  Following the configuration of FIG. 8B, the yarn 138 may be formed from at least one of a thermoset polymer and a natural fiber (eg, cotton, wool, silk), while the yarn 139 is from a thermoplastic polymer material. It may be formed. In general, thermoplastic polymer materials melt when heated and return to a solid state when cooled. More specifically, the thermoplastic polymer material transitions from a solid state to a softened or liquid state when subjected to sufficient heat, and further, the thermoplastic polymer material transitions from a softened or liquid state to a solid state when sufficiently cooled. Transition. Thus, thermoplastic polymer materials are often used to join two objects or elements. In this case, the yarn 139 may, for example, (a) one portion of the yarn 138 to another portion of the yarn 138, (b) the yarn 138 and the inlay strand 132 to each other, or (c) another element (eg, logo , Trademarks, and tags with notes and material information) may be used to join the knit component 130.

  Thus, the yarn 139 may be considered a fusible yarn if it may be used to fuse or otherwise join portions of the knit component 130 together. The yarn 138 may also be considered a non-fusible yarn if it is not generally formed from a material that can fuse or otherwise join the portions of the knit component 130 together. That is, the yarn 138 may be a non-fusible yarn, while the yarn 139 may be a fusible yarn. In some configurations of the knitted component 130, the yarn 138 (ie, non-fusible yarn) may be formed from a substantially thermoset polyester material, and the yarn 139 (ie, fusible yarn) is at least It may be partially formed from a thermoplastic polyester material.

  The use of spliced yarns may provide benefits to the knitted component 130. If the yarn 139 is heated and fused to the yarn 138 and the inlay strand 132, this process may have the effect of making the structure of the knit component 130 stiff or rigid. Also, when (a) one portion of the yarn 138 is joined to another portion of the yarn 138, or (b) the yarn 138 and the inlay strand 132 are joined together, the relative positions of the yarn 138 and the inlay strand 132 are fixed or locked. Has an effect, thereby imparting stretch resistance and stiffness.

  That is, portions of the yarn 138 do not slip relative to each other when fused to the yarn 139, thereby preventing twisting or permanent elongation of the knit element 131 due to relative movement of the knit structure. Another advantage relates to limiting fraying if a portion of the knitted component 130 has been damaged or one of the yarns 138 breaks. Also, the inlay strand 132 does not slide relative to the knit element 131, thereby preventing the portion of the inlay strand 132 from being pulled outward from the knit element 131. Thus, the area of the knitted component 130 may benefit from the use of both fusible and non-fusible yarns within the knitted element 131.

  Another side of the knitted component 130 involves a padded area adjacent to the ankle opening 121 and extending at least partially around the ankle opening 121.

  Referring to FIG. 7E, the padded area may be formed from a unitary knitted structure, two overlapping knitted layers 140 that are at least partially coextensive, and a plurality of knitted layers 140 extending between the knitted layers 140. And a floating yarn 141. Although the sides or edges of the knitted layer 140 are secured together, the central area is generally not secured. Thus, the knit layer 140 effectively forms a tube or a cylindrical structure, and the floating yarn 141 may be disposed or inserted between the knit layers 140 so as to penetrate the cylindrical structure. That is, the floating yarn 141 extends between the knitted layers 140, is substantially parallel to the surface of the knitted layer 140, and further penetrates between the knitted layers 140 to fill the inner space. Most of the knitted elements 131 are formed from yarns that are machined to form interlocking loops, but the floating yarns 141 are generally free or otherwise inserted within the interior space between the knitted layers 140. As an additional matter, the knit layer 140 may be at least partially formed from stretch yarn.

  The advantage of this configuration is that the knit layer effectively compresses the floating yarn 141 and provides elastic properties to the padded area adjacent to the ankle opening 121. That is, the stretch yarns in the knit layer 140 may be placed in tension during the knitting process that forms the knit component 130, thereby guiding the knit layer 140 to compress the floating yarn 141. While the degree of stretch of the stretch yarn may vary significantly, in many configurations of the knit component 130 the stretch yarn may stretch at least a hundred percent.

  The presence of the floating yarn 141 imparts a compressible property to the padded area adjacent to the ankle opening 121, thereby increasing the comfort of the area of the ankle opening 121 of the footwear 100. Many conventional footwear products incorporate polymer foam elements or other compressible materials in the area adjacent to the ankle opening. For conventional footwear products, the portion of the knitted component 130 formed from a unitary knitted structure may form a padded area adjacent to the ankle opening 121 along with the remainder of the knitted component 130. In further configurations of the footwear 100, similar padded areas may be placed in other areas of the knitted component 130. For example, a similar padded area may be placed as an area corresponding to the joint between the metatarsal bone and the proximal phalanx to provide a pad to the joint. Alternatively, a terry loop structure may be utilized to provide some padding in the upper 120 area.

  Based on the above description, the knit component 130 imparts various features to the upper 120. The knit component 130 also offers various advantages over some conventional upper configurations. As described above, conventional footwear uppers are formed from a plurality of material elements (eg, fabric, polymer foam, polymer sheet, leather, synthetic leather) that are joined together, for example, by sewing or gluing. As the number and type of material elements incorporated into the upper increases, the time and cost associated with transporting, storing, cutting and joining the material elements will also increase. Waste material from the cutting and sewing process also accumulates as the number and type of material elements incorporated into the upper increases. Also, an upper with a high number of material elements will be more difficult to recycle than an upper formed from material elements with a low number of types and numbers. Thus, reducing the number of material elements utilized in the upper will reduce waste while increasing the manufacturing efficiency and recyclability of the upper. To this end, the knit component 130 forms a substantial portion of the upper 120 while increasing manufacturing efficiency, reducing waste, and simplifying recyclability.

<Configuration of further knit components>
A knit component 150 is illustrated in FIGS. 9 and 10 and may be used in place of the knit component 130 of the footwear 100. The main elements of the knit component 150 are a knit element 151 and an inlay strand 152. The knit element 151 is formed from at least one yarn that is manipulated (eg, using a knitting machine) to form a plurality of interlocking loops that define various courses and wales. That is, the knit element 151 has a knit fabric structure. The inlay strand 152 extends through the knit element 151 and passes between the various loops in the knit element 151. Inlay strand 152 extends generally along a course in knitted element 151, but inlay strand 152 may extend along a wale in knitted element 151. Like the inlay strand 132, the inlay strand 152 provides stretch resistance and, when incorporated into the footwear 100, enhances the fit of the footwear 100 in conjunction with the laces 122.

  The knitted element 151 has a generally U-shaped configuration outlined by a peripheral edge 153, a pair of heel edges 154 and an inner edge 155. In addition, the knit element 151 has a first surface 156 and an opposing second surface 157. The first surface 156 may form part of the outer surface of the upper 120, while the second surface 157 may form part of the inner surface of the upper 120, so that at least a portion of the cavity within the upper 120. Is defined. In many configurations, the knit element 151 may have a single fabric layer configuration in the area of the inlay strand 152. That is, the knit element 151 may be a single fabric layer between the surface 156 and the surface 157. In addition, the knitted element 151 defines a plurality of openings 158.

  Similar to the inlay strand 132, the inlay strand 152 repeatedly extends from the peripheral edge 153 toward the inner edge 155 at least partially around one of the openings 158 and back to the peripheral edge 153. However, in contrast to inlay strand 132, certain portions of inlay strand 152 are angled rearward and extend to heel edge 154. More specifically, the portion of inlay strand 152 associated with rearmost opening 158 extends at least partially around rearmost opening 158 from one of heel edges 154 toward inner edge 155. And extend back to one of the heel edges 154. Further, some portions of inlay strand 152 do not extend around one of openings 158. More specifically, some sections of the inlay strand 152 extend toward the inner edge 155 and turn around in an area adjacent to one of the openings 158 so that the peripheral edge 153 or heel edge 154 Extends back toward one.

  Although the knitted element 151 may be formed in various ways, the course of the knitted structure extends generally in the same direction as the inlay strand 152. However, in the area adjacent to the opening 158, the inlay strand 152 may extend along a wale in the knitted element 151. More specifically, the section of the inlay strand 152 that is parallel to the inner edge 155 may extend along the wale.

  Compared to the knit element 151, the inlay strand 152 may exhibit greater stretch-resistance. That is, the inlay strand 152 may not extend more than the knit element 151. If multiple sections of inlay strand 152 extend through knit element 151, inlay strand 152 may provide stretch resistance to the portion of upper 120 between the throat region and the lower section. Alternatively, tension may be applied to the inlay strand 152 by tensioning the lace 122, thereby guiding the portion of the upper 120 between the throat region and the lower section to rest on the foot. Further, inlay strand 152 may impart stretch resistance to the heel region 103 portion of upper 120 if multiple sections of inlay strand 152 extend toward heel edge 154. Further, by applying tension to the strap 122, the upper 120 portion of the heel region 103 may be guided so as to hit the foot. Thus, the inlay strand 152 works with the laces 122 to improve the fit of the footwear 100.

  The knit element 151 may incorporate any of the various types of yarns described above for the knit element 131. Inlay strand 152 may also be formed from any of the configurations and materials described above for inlay strand 132. In addition, the various knit configurations described with respect to FIGS. 8A and 8B may also be utilized with the knit component 150. More specifically, the knitted element 151 may have a single yarn, two spliced yarns, or an area formed from a fusible yarn and a non-fusible yarn. The adhesive yarn joins (a) one portion of the non-fusible yarn to another portion of the non-fusible yarn or (b) the non-fusible yarn and the inlay strand 152 together.

  Most of the knitted elements 131 are illustrated as being formed from a relatively untextured fabric, a common or single knitted structure (eg, a tubular knitted structure). In contrast, knitted element 151 incorporates various knitted structures that impart specific characteristics and benefits to different areas of knitted component 150. Also, by combining various yarn types with the knit structure, the knit component 150 may impart a wide range of properties to different areas of the upper 120.

  Referring to FIG. 11, a schematic diagram of the knit component 150 shows various zones 160-169 having different knit structures, each of which will now be described in detail. For reference, in FIG. 11, regions 101-103 and sides 104 and 105, respectively, are referenced to the position of knit zones 160-169 when knit component 150 is incorporated into footwear 100. Show.

  The cylindrical knitted zone 160 extends along each of the regions 101 to 103 on both sides 104 and 105 along most of the peripheral edge 153. The tubular knit zone 160 extends inwardly from each of the side portions 104 and 105 in an area substantially located at the boundary between the regions 101 and 102 to form the front portion of the inner edge 155. The cylindrical knit zone 160 forms a knit configuration that is relatively untextured.

  Referring to FIG. 12A, a cross section through the area of the cylindrical knit zone 160 is illustrated, with the faces 156 and 157 being substantially parallel to each other. The tubular knit zone 160 provides various advantages to the footwear 100. For example, the tubular knit zone 160 is more durable and wear resistant than some other knit structures, especially when the yarns of the tubular knit zone 160 are spliced with a fusible yarn. Furthermore, the relatively untextured nature of the cylindrical knit zone 160 simplifies the process of joining the strobed insole 125 to the peripheral edge 153. That is, the portion of the cylindrical knitted zone 160 disposed along the peripheral edge 153 facilitates the lasting process of the footwear 100. For reference, FIG. 13A illustrates a loop diagram of an embodiment in which a tubular knit zone 160 is formed by a knitting process.

  Two stretch knit zones 161 extend inwardly from the periphery 153 and are positioned to correspond to the position of the joint between the metatarsal and proximal phalange of the foot. That is, the stretch zone extends inward from the peripheral edge in an area that is substantially disposed at the boundary between the regions 101 and 102. Similar to the cylindrical knit zone 160, the knit configuration of the stretch knit zone 161 may be a cylindrical knit structure. However, in contrast to the cylindrical knit zone 160, the stretch knit zone 161 is formed from a stretch yarn that imparts stretch and resilience to the knit component 150. While the degree of stretch of the stretch yarn may vary significantly, in many configurations of the knit component 150, the stretch yarn may stretch at least a hundred percent.

  A cylindrical double-sided (interlock) tack knit zone 162 extends at least along the portion of the inner edge 155 of the midfoot region 102. The cylindrical double-sided tack knit zone 162 also forms a knit structure that is relatively untextured, but has a thickness greater than that of the cylindrical knit zone 160. In cross section, the cylindrical double-sided tack knit zone 162 is similar to FIG. 12A, and the surfaces 156 and 157 are substantially parallel to each other. The cylindrical double-sided tack knit zone 162 provides various advantages to the footwear 100. For example, the cylindrical double-sided tack knit zone 162 is more stretch resistant than some other knit structures, which is advantageous when the strap 122 tensions the cylindrical double-sided tack knit zone 162 and the inlay strand 152. . For reference, FIG. 13B illustrates a loop diagram of an embodiment in which a cylindrical double-sided tack knit zone 162 is formed by a knitting process.

  A 1 × 1 mesh knit zone 163 is disposed in the foot region 101 and is spaced inward from the peripheral edge 153. The 1 × 1 mesh knit zone has a C-shaped configuration, as shown in FIG. 12B, and forms a plurality of openings extending from the first surface 156 to the second surface 157 through the knit element 151. doing. The openings increase the breathability of the knit component 150 and allow air to enter the upper 120 and allow moisture to escape from the upper 120. For reference, FIG. 13C illustrates a loop diagram of an embodiment in which a 1 × 1 mesh knit zone 163 is formed by a knitting process.

  A 2 × 2 mesh knit zone 164 extends adjacent to the 1 × 1 mesh knit zone 163. Compared to the 1 × 1 mesh knit zone 163, the 2 × 2 mesh knit zone 164 will form a larger opening and further enhance the breathability of the knit component 150. For reference, FIG. 13D illustrates a loop diagram of an embodiment in which a 2 × 2 mesh knit zone 164 is formed by a knitting process.

  A 3 × 2 mesh knit zone 165 is disposed within the 2 × 2 mesh knit zone 164, and another 3 × 2 mesh knit zone 165 is disposed adjacent to one of the stretch zones 161. Compared to the 1 × 1 mesh knit zone 163 and the 2 × 2 mesh knit zone 164, the 3 × 2 mesh knit zone 165 will create a larger opening and further increase the breathability of the knit component 150. . For reference, FIG. 13E illustrates a loop diagram of an embodiment in which a 3 × 2 mesh knit zone 165 is formed by a knitting process.

  A 1 × 1 mock mesh knit zone 166 is disposed in the foot region 101 and extends around the 1 × 1 mesh knit zone 163. In contrast to the mesh knit zones 163-165 that form openings through the knit element 151, the 1 × 1 mock mesh knit zone 166 forms a recess in the first surface 156, as illustrated in FIG. 12C. In addition to improving the aesthetics of the footwear 100, the 1 × 1 mock mesh knit zone 166 increases the flexibility of the knit component 150 and reduces the overall mass. For reference, FIG. 13F illustrates a loop diagram of an embodiment of forming a 1 × 1 mock mesh knit zone 166 in a knitting process.

  Two 2 × 2 mock mesh knit zones 167 are located in the heel region 103 and adjacent to the heel edge 154. Compared to the 1 × 1 mock mesh knit zone 166, the 2 × 2 mock mesh knit zone 167 forms a larger recess in the first surface 156. In the area where the inlay strand 152 extends through the recess in the 2 × 2 mock mesh knit zone 167, as shown in FIG. 12D, the inlay strand 152 is visible and exposed to the lower area of the recess. Let's go. For reference, FIG. 13G illustrates a loop diagram of an embodiment in which a 2 × 2 mock mesh knit zone 167 is formed by a knitting process.

  Two 2 × 2 hybrid knit zones 168 are disposed in the midfoot region 102 in front of the 2 × 2 mock mesh knit zone 167. The 2 × 2 hybrid knit zone 168 shares the features of a 2 × 2 mesh knit zone 164 and a 2 × 2 mock mesh knit zone 167. More specifically, the 2 × 2 hybrid knit zone 168 forms an opening having the size and configuration of a 2 × 2 mesh knit zone 164 and the 2 × 2 hybrid knit zone 168 is a 2 × 2 mock mesh knit zone. A recess having a size and configuration of 167 is formed. In the area where the inlay strand 152 extends through the recess of the 2 × 2 hybrid knit zone 168, as shown in FIG. 12E, the inlay strand 152 is visible and exposed. For reference, FIG. 13H illustrates a loop diagram of an embodiment in which a 2 × 2 hybrid knit zone 168 is formed by a knitting process.

  The knitted component 150 is adjacent to the ankle opening 121 described above for the knitted component 130 and has two padded zones having a general configuration of a padded area that extends at least partially around the ankle opening 121. 169 may be included. Thus, the padded zone 169 includes two overlapping and at least partially co-extensive knit layers that may be formed from a unitary knit structure and a plurality of floating yarns extending between the knit layers. Is formed by.

  Comparison with FIGS. 9 and 10 reveals that most of the texturing of the knit element 151 is located on the first surface 156 and not on the second surface 157. That is, the recess formed by the knit zones 166 and 167 of the mock mesh and the recess of the 2 × 2 hybrid knit zone 168 are formed on the first surface 156. This configuration has the advantage of increasing the comfort of the footwear 100. More specifically, this configuration applies the relatively untextured configuration of the second surface 157 to the foot. Further comparison between FIG. 9 and FIG. 10 reveals that the portion of inlay strand 152 is exposed at first surface 156 but not at second surface 157. This configuration also has the advantage of increasing the comfort of the footwear 100. More specifically, by separating the inlay strand 152 from the foot by a part of the knit element 151, the inlay strand 152 does not contact the foot.

  Additional configurations of the knit component 130 are illustrated in FIGS. 14A-14C. Although described with respect to the knit component 130, the concepts associated with each of these configurations may also be utilized for the knit component 150. Referring to FIG. 14A, the inlay strand 132 is not in the knit component 130. Inlay strand 132 provides stretch resistance to the area of knit component 130, but in some configurations, stretch resistance from inlay strand 132 may not be required. Also, some configurations may benefit from the high stretchability of the upper 120. Referring to FIG. 14B, the knit element 131 is formed from a unitary knit structure with the rest of the knit element 131 and includes two flaps 142 extending along the length of the knit component 130 at the periphery 133. Contains. When incorporated in the footwear 100, the flap 142 may be replaced with a strobed insole 125. That is, the flap 142 may extend under the insole 113 and form a part of the upper 120 fixed to the upper surface of the midsole 111. Referring to FIG. 14C, the knit component 130 has a configuration that is limited to the midfoot region 102. In this configuration, other material elements (eg, fabric, polymer foam, polymer sheet, leather, synthetic leather) may be joined to the knitted component 130, for example by sewing or gluing, to form the upper 120.

  Based on the above description, each of the knit components 130 and 150 may have various configurations that impart features and advantages to the upper 120. More specifically, the knit elements 131 and 151 may incorporate various knit structures and yarn types that impart specific characteristics to different areas of the upper 120, and the inlay strands 132 and 152 are stretch resistant to the areas of the upper 120. It may extend through the knit structure so as to impart the properties and enhance the fit of the footwear 100 in conjunction with the laces 122.

<Configuration of knitting machine and feeder>
Although knitting may be done by hand, the commercial manufacture of knitted components is typically done on a knitting machine. One embodiment of a knitting machine 200 suitable for the production of both knitted components 130 and 150 is illustrated in FIG. The knitting machine 200 has a V-bed flat knitting machine configuration for illustration, but either the knitted components 130 and 150 or the sides of the knitted components 130 and 150 may be produced on other types of knitting machines. .

  The knitting machine 200 includes two needle beds 201 forming a V-bed by making an angle with respect to each other. Each of the needle beds 201 includes a plurality of individual needles 202 that lie on a common plane. That is, the needle 202 from one needle bed 201 is in the first plane, and the needle 202 from the other needle bed 201 is in the second plane. The first plane and the second plane (ie, the two needle beds 201) are angled with respect to each other and intersect to form an intersection that extends along most of the width of the knitting machine 200. As will be described in more detail below, each of the needles 202 has a first position that retracts and a second position that extends. In the first position, the needle 202 is away from the intersection where the first plane and the second plane intersect. However, in the second position, the needle 202 passes through the intersection where the first plane and the second plane intersect.

  A pair of rails 203 extend parallel to and above the intersection of the needle bed 201 to provide attachment points for a plurality of standard feeders 204 and combination feeders 220. Each rail 203 has two sides, each of which accommodates either one standard feeder 204 or one combination feeder 220. As such, the knitting machine 200 may include a total of four feeders 204 and 220. As shown, the front row of rails 203 includes one combination feeder 220 and one standard feeder 204 on opposite sides, and the last row of rails 203 includes two standard feeders 204 on opposite sides. . Although two rails 203 are illustrated, additional configurations of the knitting machine 200 may incorporate additional rails 203 to provide more feeder 204 and 220 attachment points.

  By the action of the carriage 205, the feeders 204 and 220 move along the rail 203 and the needle bed 201, thereby supplying the yarn to the needle 202. In FIG. 15, the yarn 206 is supplied to the combination feeder 220 by the spool 207. More specifically, the yarn 206 extends from the spool 207 to the various yarn guides 208, the yarn tensioning spring 209 and the yarn tensioner 210 before entering the combination feeder 220. Although not shown, an additional spool 207 may be utilized to supply the yarn to the feeder 204.

  The standard feeder 204 is conventionally used in V bed type flat knitting machines such as the knitting machine 200. That is, the existing knitting machine incorporates the standard feeder 204. Each standard feeder 204 has the ability to supply yarns that the needles 202 operate to knit, tuck and float. As a comparison, the combination feeder 220 has the ability to supply yarns (eg, yarn 206) that the needles 202 knit, tuck and float, and the combination feeder 220 has the ability to insert the yarns. The combination feeder 220 also has the ability to insert a variety of different strands (eg, filaments, threads, ropes, bands, cables, chains or yarns). Therefore, the combination feeder 220 shows versatility superior to each standard feeder 204.

  As previously mentioned, the combination feeder 220 may be utilized when inserting yarns or other strands in addition to knitting, tacking and float knitting yarns. A conventional knitting machine that does not incorporate the combination feeder 220 may also insert the yarn. More specifically, a conventional knitting machine supplied with an inlay feeder may also insert a yarn. A conventional inlay feeder for a V-bed flat knitting machine includes two components that work together to insert a yarn. Each of the inlay feeder components is secured to a separate mounting point on two adjacent rails, thereby occupying two mounting points. Each standard feeder 204 occupies only one attachment point, but generally two attachment points are occupied when using an inlay feeder to insert a yarn into a knit component. Further, the combination feeder 220 occupies only one mounting point, whereas the conventional inlay feeder occupies two mounting points.

  If the knitting machine 200 includes two rails 203, the knitting machine 200 can use four attachment points. If a conventional inlay feeder is used for the knitting machine 200, the standard feeder 204 may only use two attachment points. However, if the combination feeder 220 is used in the knitting machine 200, three attachment points can be used for the standard feeder 204. Thus, the combination feeder 220 may be utilized when inserting yarns or other strands, and the combination feeder 220 has the advantage of occupying only one attachment point.

  A combination feeder 220 including a carrier 230, a feeder arm 240 and a pair of actuating members 250 is shown individually in FIGS. Most of the combination feeder 220 may be formed from a metallic material (eg, steel, aluminum, titanium), but the carrier 230, feeder arm 240 and actuating member 250 portions may be formed from, for example, a polymer, ceramic, or composite material. May be. As previously described, the combination feeder 220 may be utilized when inserting yarns or other strands in addition to knitting, tucking and float knitting yarns. With particular reference to FIG. 16, a portion of the yarn 206 is illustrated to illustrate the manner in which the strand contacts the combination feeder 220.

  The carrier 230 has a substantially rectangular configuration, and includes a first cover member 231 and a second cover member 232 that are joined by four bolts 233. Cover members 231 and 232 define an internal cavity in which portions of feeder arm 240 and actuating member 250 are disposed. The carrier 230 also includes a mounting element 234 that extends outwardly from the first cover member 231 to secure the feeder 220 to one of the rails 230. Although the configuration of the mounting element 234 may vary, as illustrated in FIG. 17, the mounting element 234 is illustrated to include two spaced overhang areas that form a dovetail shape. One reverse pigtail configuration of the rails 203 may extend to the dovetail shape of the mounting element 234 to effectively join the combination feeder 220 to the knitting machine 200. It should also be noted that the second cover member 234 is centrally located to form an elongated slot 235, as illustrated in FIG.

  The feeder arm 240 has a substantially elongated configuration that extends outward from the lower side of the carrier 230 through the carrier 230 (that is, the cavity between the cover member 231 and the cover member 232). In addition to other elements, the feeder arm 240 includes an actuating bolt 241, a spring 242, a pulley 243, a loop 244, and a yarn feeding area 245. The operating bolt 241 extends outward from the feeder arm 240 and is located in a cavity between the cover member 231 and the cover member 232. As shown in FIG. 18, one side of the operating bolt 241 is also disposed in the slot 235 of the second cover member 232. The spring 242 is fixed to the carrier 230 and the feeder arm 240. More specifically, one end of the spring 242 is fixed to the carrier 230, and the other end of the spring 242 is fixed to the feeder arm 240. A pulley 243, loop 244 and yarn feed area 245 are present in the feeder arm 240 to contact the yarn 206 or another strand. Also, the pulley 243, loop 244, and yarn feeding section 245 are configured to ensure that the yarn 206 or another strand passes smoothly through the combination feeder 220, thereby being reliably fed to the needle 202. . Referring again to FIG. 16, the yarn 206 extends around the pulley 243, through the loop 244, and into the yarn feeding area 245. In addition, the yarn 206 extends from the yarn feeding tip 246 which is the end region of the feeder arm 240 and is further supplied to the needle 202.

  Each actuation member 250 includes an arm 251 and a plate 252. In many configurations of the actuating member 250, each arm 251 is formed as a one-piece element with one of the plates 252. The arm 251 is disposed outside the carrier 230 and above the carrier 230, but the plate 252 is disposed in the carrier 250. Each of the arms 251 has an elongated configuration that defines an outer end 253 and an opposite inner end 254, and the arms 251 are positioned to define a space 255 between the inner ends 254. That is, the arms 251 are separated from each other. The plate 252 has a substantially planar configuration. Referring to FIG. 19, each of the plates 252 defines an opening 256 with a beveled edge 257. Further, the operating bolt 241 of the feeder arm 240 extends to each opening 256.

  The configuration of the combination feeder 220 described above provides a structure that facilitates translational movement of the feeder arm 240. As described in more detail below, the translational movement of the feeder arm 240 selectively positions the yarn feed tip 246 at a position above or below the intersection of the needle bed 201. That is, the yarn feeding tip 246 has the ability to reciprocate through the intersection of the needle bed 201. The advantage of the translational movement of the feeder arm 240 is that the combination feeder 220 (a) yarns 206 for knitting, tucking and float knitting when the yarn feed tip 246 is positioned over the intersection of the needle bed 201. As well as (b) supplying yarn 206 or another strand for insertion when yarn feed tip 246 is positioned below the intersection of needle bed 201. Further, the feeder arm 240 reciprocates between two positions according to the mode in which the combination feeder 220 is used.

  When reciprocating the intersection of the needle bed 201, the feeder arm 240 translates from the retracted position to the extended position. When in the retracted position, the yarn feed tip 246 is positioned over the intersection of the needle bed 201. When in the extended position, the yarn feed tip 246 is positioned below the intersection of the needle bed 201. The yarn feeding tip 246 is closer to the carrier 230 when the feeder arm 240 is in the retracted position than when the feeder arm 240 is in the extended position. Similarly, the yarn feeding tip 246 is farther from the carrier 230 when the feeder arm 240 is in the extended position than when the feeder arm 240 is in the retracted position. In other words, the yarn feeding tip 246 moves away from the carrier 230 in the extended position, and the yarn feeding tip 246 moves closer to the carrier 230 when in the retracted position.

  For reference in FIGS. 16-20C and further figures described below, arrow 221 is positioned adjacent yarn feed area 245. When the arrow 221 points upward or in the direction toward the carrier 230, the feeder arm 240 is in the retracted position. When the arrow 221 points downward or away from the carrier 230, the feeder arm 240 is in the extended position. Therefore, by referring to the position of the arrow 221, the position of the feeder arm 240 will be easily confirmed.

  The natural state of the feeder arm 240 is the retracted position. That is, if no significant force is applied to the area of the combination feeder 220, the feeder arm remains in the retracted position. For example, referring to FIGS. 16-19, the forces or other effects that interact with the combination feeder 220 are not shown and the feeder arm 240 is in the retracted position. However, when a sufficient force is applied to one of the arms 251, translational movement of the feeder arm 240 occurs. More specifically, when sufficient force is applied to one of the outer ends 253 and directed toward the space 255, translational movement of the feeder arm 240 occurs. Referring to FIGS. 20A and 20B, the force 222 acts on one of the outer ends 253 and is directed toward the space 255, and the feeder arm 240 is shown translated to the extended position. However, when the force 222 is removed, the feeder arm 240 returns to the retracted position. It should also be noted that FIG. 20C illustrates force 222 acting on inner end 254 and facing outward, and feeder arm 240 remains in the retracted position.

  As described above, the feeders 204 and 220 move along the rail 203 and the needle bed 201 due to the action of the carriage 205. More specifically, the drive bolt in the carriage 205 contacts the feeders 204 and 220 to push the feeders 204 and 220 along the needle bed 201. With respect to the combination feeder 220, the drive bolt contacts either one of the outer end 253 or one of the inner ends 254 to push the combination feeder 220 along the needle bed 201. When the drive bolt contacts one of the outer ends 253, the feeder arm 240 translates to the extended position and the yarn feed tip 246 passes under the intersection of the needle bed 201. When the drive bolt contacts one of the inner ends 254 and is placed in the space 255, the feeder arm 240 remains in the retracted position and the yarn feed tip 246 is above the intersection of the needle bed 201. Therefore, the area where the carriage 205 contacts the combination feeder 220 determines whether the feeder arm 240 is in the retracted position or the extended position.

  Here, the mechanical action of the combination feeder 220 will be described. FIGS. 19-20B illustrate the combination feeder 220 with the first cover member 231 removed and the elements in the cavity of the carrier 230 exposed. By comparing FIG. 19 with FIGS. 20A and 20B, it will be apparent that the force 222 guides the feeder arm 240 to translate. When the force 222 acts on one of the outer ends 253, one of the actuating members 250 slides in a direction perpendicular to the length of the feeder arm 240. That is, one of the actuating members 250 slides horizontally in FIGS. 19-20B. One movement of the actuating member 250 causes the actuating bolt 241 to engage one of the inclined edges 257. If the movement of the actuating member 250 is restricted in a direction perpendicular to the length of the feeder arm 240, the actuating bolt 241 rotates or slides relative to the inclined edge 257 to translate the feeder arm 240 into the extended position. To guide. When the force 222 is removed, the spring 242 pulls the feeder arm 240 from the extended position to the retracted position.

  Based on the above description, the combination feeder 220 can be moved back and extended depending on whether the yarn or other strand is being used for knitting, tucking or float knitting, or for insertion. And reciprocates. The combination feeder 220 is configured to guide the application of the force 222 to translate the feeder arm 240 from the retracted position to the extended position, and to eliminate the force 222 to translate the feeder arm 240 from the extended position to the retracted position. Have. That is, the combination feeder 220 has a configuration in which the application and removal of the force 222 causes the feeder arm 240 to reciprocate between opposing sides of the needle bed 201. In general, the outer end 253 may be considered the working area and induces movement of the feeder arm 240. In further configurations of the combination feeder 220, the working area may be in other locations or may induce movement of the feeder arm 240 in response to other stimuli. For example, the actuation area may be an electrical input coupled to a servo mechanism that controls the movement of the feeder arm 240. Accordingly, the combination feeder 220 may have various structures that operate in the same general manner as described above.

<Knitting process>
Here, the manner in which the knitting machine 200 operates to manufacture the knit component will be described in detail. The following description also demonstrates the operation of the combination feeder 220 during the knitting process. Referring to FIG. 21A, a portion of a knitting machine 200 that includes various needles 202, rails 203, standard feeders 204, and combination feeders 220 is illustrated. The combination feeder 220 is fixed to the front side of the rail 203, while the standard feeder 204 is fixed to the rear side of the rail 203. The yarn 206 passes through the combination feeder 220, and one end of the yarn 206 extends outward from the yarn feeding tip 246. Although yarn 206 is illustrated, any other strand (eg, filament, thread, rope, strip, cable, chain or yarn) may pass through combination feeder 220. Another yarn 211 passes through the standard feeder 204 to form part of the knitted component 260 and the loop of yarn 211 forming the uppermost course of the knitted component 260 is held by a hook located at the end of the needle 202 Has been.

  Although the knitting process described herein involves the formation of knitted component 260, it may be any knitted component, including knitted components similar to knitted components 130 and 150. For illustration purposes, only a relatively small section of the knit component 260 is shown in the drawings so that the knit structure can be illustrated. Also, the scale or ratio of the various elements of knitting machine 200 and knitted component 260 have been expanded to better illustrate the knitting process.

  The standard feeder 204 includes a feeder arm 212 having a yarn feeding tip 213. The feeder arm 212 forms an angle at which the yarn feeding tip 213 is positioned at a position (a) at the center between the needles 202 and (b) above the intersection of the needle bed 201. FIG. 22A shows a schematic cross-sectional view of this configuration. Note that the needles 202 are on different planes and are angled with respect to each other. That is, the needles 202 from the needle bed 201 are on different planes. Each needle 202 has a first position and a second position. In the first position indicated by the solid line, the needle 202 is retracted. In the second position indicated by the dotted line, the needle 202 is extended. In the first position, the needle 202 is away from the intersection where the planes with the needle bed 201 intersect. However, in the second position, the needle 202 extends and passes through an intersection where planes with the needle bed 201 intersect. That is, the needles 202 cross each other when extended to the second position. It should be noted that the yarn feed tip 213 is located on a plane intersection. In this position, the yarn feed tip 213 supplies the yarn 211 to the needle 202 for knitting, tucking and float knitting.

  The combination feeder 220 is in the retracted position, as clearly shown by the direction of the arrow 221. The feeder arm 240 extends downward from the carrier 230 and positions the yarn feeding tip 246 at a position (a) at the center between the needles 202 and (b) above the intersection of the needle bed 201. FIG. 22B shows a schematic cross-sectional view of this configuration. Note that the yarn feed tip 246 is positioned at the same relative position as the yarn feed tip 213 of FIG. 22A.

  Referring now to FIG. 21B, the standard feeder 204 moves along the rail 203 and a new course is formed from the yarn 211 to the knit component 260. More specifically, the needle 202 pulls the section of yarn 211 through the loop of the previous course, thereby forming a new course. Accordingly, the course is added to the knit component 260 by moving the standard feeder 204 along the needle 202, thereby allowing the needle 202 to manipulate the yarn 211 to form an additional loop from the yarn 211. May be.

  As the knitting process continues, the feeder arm 240 now translates from the retracted position to the extended position, as illustrated in FIG. 21C. In the extended position, the feeder arm 240 extends downward from the carrier 230 so that the yarn feed tip 246 is (a) centered between the needles 202 and (b) below the intersection of the needle bed 201. Position to position. FIG. 22C shows a schematic cross-sectional view of this configuration. Note that the yarn feed tip 246 is positioned below the position of the yarn feed tip 246 in FIG. 22B for translational movement of the feeder arm 240.

  Referring now to FIG. 21D, the combination feeder 220 moves along the rail 203 and the yarn 206 is disposed between the loops of the knit component 260. That is, the yarns 206 are arranged in an alternating pattern before some loops and behind other loops. Further, the yarn 206 is disposed in front of a loop held by the needle 202 from one needle bed 201, and the yarn 206 is arranged behind the loop held by the needle 202 from the other needle bed 201. ing. Note that the feeder arm 240 remains in the extended position to place the yarn 206 in the area below the intersection of the needle bed 201. In this way, the yarn 206 is effectively placed in the course formed immediately before by the standard feeder 204 of FIG. 21B.

  In order to fully insert the yarn 206 into the knit component 260, the standard feeder 204 moves along the rail 203 to form a new course from the yarn 211, as illustrated in FIG. 21E. By forming a new course, the yarn 206 is effectively knitted or otherwise integrated into the structure of the knitted component 260. At this stage, the feeder arm 240 may also translate from the extended position to the retracted position.

  21D and 21E show the individual movement of feeders 204 and 220 along rail 203. FIG. That is, FIG. 21D shows the first movement of the combination feeder 220 along the rail 203 and FIG. 21E shows the second subsequent movement of the standard feeder 204 along the rail 203. In many knitting processes, the feeders 204 and 220 may move effectively to form a new course from the yarn 211 while inserting the yarn 206 at the same time. However, in order to position the yarn 206 before forming a new course from the yarn 211, the combination feeder 220 moves prior to or ahead of the standard feeder 204.

  The general knitting process outlined in the above description provides an example of how the inlay strands 132 and 152 may be placed on the knitted elements 131 and 151. More specifically, the knit components 130 and 150 may be formed by effectively inserting the inlay strands 132 and 152 into the knit element 131 using the combination feeder 220. Considering the reciprocating motion of the feeder arm 240, the inlay strand may be placed in a previously formed course before forming a new course.

  As the knitting process continues, the feeder arm 240 now translates from the retracted position to the extended position, as illustrated in FIG. 21F. As shown in FIG. 21G, the combination feeder 220 then moves along the rail 203 and the yarn 206 is placed between the loops of the knit component 260. As a result, the yarn 206 is effectively placed in the course formed by the standard feeder 204 of FIG. 21E. To fully insert the yarn 206 into the knit component 260, the standard feeder 204 moves along the rail 203 to form a new course from the yarn 211, as illustrated in FIG. 21H. By forming a new course, the yarn 206 is effectively knitted or otherwise integrated into the structure of the knitted component 260. At this stage, the feeder arm 240 may also translate from the extended position to the retracted position.

  Referring to FIG. 21H, the yarn 206 forms a loop 214 between the two inlay sections. In the description of the knitted component 130 above, the inlay strand 132 repeatedly exits the knitted element 131 at the peripheral edge 133 and then reenters the knitted element 131 at another position of the peripheral edge 133, thereby allowing the FIG. 5 and FIG. Note that the loop forms along the perimeter 133, as can be seen at 6. The loop 214 is similarly formed. That is, the loop 214 is formed where the yarn 206 exits the knit structure of the knit component 260 and then reenters the knit structure.

  As described above, the standard feeder 204 has the ability to supply the yarn (eg, yarn 211) that the needle 202 manipulates to knit, tuck and float. However, the combination feeder 220 has the ability to insert a yarn and supply a yarn (eg, yarn 206) that the needle 202 knits, tacks or floats. The above description of the knitting process describes the manner in which the yarn is inserted when the combination feeder 220 is in the extended position. The combination feeder 220 may supply yarns for knitting, tucking and float knitting when in the retracted position.

  Referring to FIG. 21I, for example, the combination feeder 220 moves along the rail 203 when in the retracted position and forms a course of the knit component 260 when in the retracted position. Thus, by reciprocating the feeder arm 240 between a retracted position and an extended position, the combination feeder 220 may supply the yarn 206 for knitting, tucking, floating knitting and insertion. Thus, the advantage of the combination feeder 220 is related to its versatility in providing yarns that may be utilized for more functions than the standard feeder 204.

  The ability of the combination feeder 220 to feed yarn for knitting, tucking, float knitting and insertion is based on the reciprocating motion of the feeder arm 240. Referring to FIGS. 22A and 22B, the yarn feed tips 213 and 246 are in the same position relative to the needle 220. Thus, both feeders 204 and 220 may supply yarns for knitting, tucking and float knitting. Referring to FIG. 22C, the yarn feed tip 246 is in a different position. Thus, the combination feeder 220 may supply yarn or other strands for insertion. Thus, the advantages of the combination feeder 220 relate to its versatility in providing yarns that may be utilized for knitting, tucking, float knitting and insertion.

<Consideration of further knitting process>
Here, additional aspects related to the knitting process will be described. Referring to FIG. 23, the upper course of the knit component 260 is formed from both yarns 206 and 211. More specifically, the left side of the course is formed of yarn 211, while the right side of the course is formed of yarn 206. Further, the yarn 206 is inserted on the left side of the course. To form this configuration, the standard feeder 204 may first form the left side of the course from the yarn 211. Next, when the feeder arm 240 is in the extended position, the combination feeder 220 places the yarn 206 on the right side of the course. Thereafter, the feeder arm 240 moves from the extended position to the retracted position to form the right side of the course. Thus, the combination feeder may insert the yarn into one part of the course and then supply the yarn to knit the rest of the course.

  FIG. 24 illustrates the configuration of a knitting machine 200 including four combination feeders 220. As described above, the combination feeder 220 has the ability to supply yarn (eg, yarn 206) for knitting, tucking, float knitting and insertion. Given this versatility, the standard feeder 204 may be replaced with a plurality of combination feeders 220 in the knitting machine 200 or various conventional knitting machines.

  FIG. 8B illustrates the configuration of knit component 130 in which two yarns 138 and 139 are spliced to form knit element 131 and inlay strand 132 extends through knit element 131. The general knitting process described above may also be utilized to form this configuration. As illustrated in FIG. 15, the knitting machine 200 includes a plurality of standard feeders 204, two of which may be used to form the knit element 131, and the combination feeder 220 is an inlay strand. 132 is placed. Accordingly, the knitting process described above in FIGS. 21A-21I may be modified by adding another standard feeder 204 to supply additional yarn. In the configuration where the yarn 138 is a non-fusible yarn and the yarn 139 is a fusible yarn, the knitted component 130 may be fused to heat the knitted component 130 after the knitting process.

  The portion of the knit component 260 illustrated in FIGS. 21A-21I has a rib knit fabric configuration with a regular and uninterrupted course and wales. That is, the portion of knit component 260 does not have, for example, a mesh area similar to mesh knit zones 163-165 or a mock mesh area similar to mock mesh knit zones 166 and 167. To form a mesh knit zone 163-165 in either knit component 150 and 260, the needle bed 201 is shaken and front to back needle bed 201 and back to front needles at different swing positions. A combination with the transfer of the floor 201 is used. In order to form a mock mesh area similar to the mock mesh knit zones 166 and 167, a combination of shaking the needle bed and transferring the needle bed 201 from front to back is utilized.

  The courses in the knit component are substantially parallel to each other. Given that the majority of the inlay strand 152 follows the course in the knitted element 151, one may think that the various sections of the inlay strand 152 are parallel to one another. For example, referring to FIG. 9, some sections of inlay strand 152 extend between edges 153 and 155, and other sections extend between edges 153 and 154. As such, the various sections of inlay strand 152 are not parallel. The concept of forming a dart may be utilized to impart this non-parallel configuration to the inlay strand 152. More specifically, courses having different lengths may be formed to effectively insert a wedge-shaped structure between the sections of the inlay strand 152. As such, the structure formed in the knit component 150 may be achieved from a dart formation process if the various sections of the inlay strand 152 are not parallel.

  Most of the inlay strands 152 follow the course in the knit element 151, while some sections of the inlay strands 152 follow the wale. For example, the section of the inlay strand 152 adjacent to and parallel to the inner edge 155 follows the wale. This may be accomplished by first inserting a section of the inlay strand 152 along a portion of the course at a point where the inlay strand 152 is intended to follow the wale. Next, the inlay strand 152 is advanced in the reverse direction, and the inlay strand 152 is moved out of the track to finish the course. Thereafter, when the course is formed, the inlay strand 152 is advanced in the reverse direction again, the inlay strand 152 is removed from the track, and the inlay strand 152 is moved to a point where the inlay strand 152 is intended to follow the wale, and the course is finished. . This process is repeated until the inlay strand 152 extends the desired distance along the wale. A similar concept may be utilized for the inlay strand 132 portion of the knitted component 130.

  Various procedures may be used to reduce the relative movement of (a) knit element 131 and inlay strand 132, or (b) knit element 151 and inlay strand 152. That is, various procedures may be utilized so that inlay strands 132 and 152 do not slide, move, fall off or otherwise displace knit elements 131 and 151. For example, one or more yarns formed from a thermoplastic polymer material may be fused to inlay strands 132 and 152 to prevent movement of inlay strands 132 and 152 and knit elements 131 and 151. Further, the inlay strands 132 and 152 may be fixed to the knitted elements 131 and 151 when they are regularly sent to the knitting needle as a tack element. That is, to secure inlay strands 132 and 152 to knitted elements 131 and 151 and to prevent movement of inlay strands 132 and 152, inlay strands 132 and 152 are pointed along their length (eg, every centimeter). May be knitted into tuck knitting once.

  After the knitting process described above, various operations may be performed to improve the properties of any of the knitted components 130 and 150. For example, a water repellent coating or other water resistant treatment may be applied to limit the ability of the knit structure to absorb and retain moisture. As another example, steam may be applied to the knit components 130 and 150 to improve elasticity and induce yarn fusion. As described above with respect to FIG. 8B, the yarn 138 may be a non-fusible yarn and the yarn 139 may be a fusible yarn. Upon application of steam, the yarn 139 melts or otherwise becomes flexible, so it transitions from the solid state to the softened or liquid state, and when further cooled, it transitions from the softened or liquid state to the solid state. You may do it. Thus, for example, the yarn 139 can include (a) one portion of the yarn 138 in another portion of the yarn 138, (b) the yarn 138 and the inlay strand 132 together, or (c) another element (eg, logo , Trademarks, and tags with notes and material information) may be used to join the knit component 130. Thus, the process of applying steam may be utilized to induce yarn fusion to the knit components 130 and 150.

  Although the procedure associated with the process of applying steam may vary significantly, one method involves pinning one of the knit components 130 and 150 to the jig while applying steam. An advantage of pinning one of the knitted components 130 and 150 to the jig is that the finished dimensions of a particular area of the knitted components 130 and 150 can be controlled. For example, the pins on the jig may be arranged to be held in an area corresponding to the peripheral edge 133 of the knitted component 130. By maintaining the specific dimensions of the peripheral portion 133, the peripheral portion 133 will have the correct length for the part of the lasting process that joins the upper 120 to the sole structure 110. Accordingly, the pinned areas of the knit components 130 and 150 may be utilized to control the finished dimensions of the knit components 130 and 150 after the steaming process.

  The knitting process described above to form the knitted component 260 may be applied to the manufacture of the knitted components 130 and 150 of the footwear 100. The knitting process may also be applied to the manufacture of various other knitted components. That is, the various knitted components may be formed using a knitting process that utilizes one or more combination feeders or other feeders that reciprocate. Thus, knit components formed by the knitting process described above or similar processes may be used for other types of clothing (eg, shirts, pants, socks, outerwear, underwear), sports equipment (eg, golf bags). , Baseball and football gloves, soccer ball regulation structures), containers (eg, pack packs, bags), and furniture decorations (eg, chairs, sofas, car seats). Knit components may also be used for bed coverings (eg, sheets, blankets), table coverings, towels, flags, tents, sails and parachutes. Knit components include structures for automotive and aerospace industries, filter materials, medical fabrics (eg bandages, cotton swabs, grafts), geotextiles to reinforce dikes, agrotextiles to protect crops And industrial textiles including industrial clothing that protects or insulates from heat and radiation. Thus, knitted components formed from the knitting processes described above or similar processes may be incorporated into a variety of products for both personal and industrial purposes.

<Inlay strand in the heel area>
Some sections or portions of inlay strand 152 bend backwards and extend to heel edge 154 as described above. For example, referring to FIGS. 9 and 10, those sections of inlay strand 152 may at least partially circumscribe one or more lace openings 158 from heel edge 154 toward inner edge 155, It extends back to the heel edge 154. In addition, some sections of the inlay strand 152 fold from the heel edge 154 toward the inner edge 155 in the area adjacent to the lace opening 158 between the lace openings 158 to the heel edge 154. Extending back.

  The advantage with this configuration is that the portion of the inlay strand 152 that extends between the heel edge 154 and the inner edge 155 effectively wraps the wearer's heel and secures the position of the heel within the footwear 100. It means that it is easy. Like the other parts of the inlay strand 152, these sections (a) provide support, stability and structure, (b) make it easier to secure the knit component 150 or upper 120 around the foot ( c) limiting deformation in the area of the upper 120 (e.g., providing stretch resistance), and (d) interlocking with the lace 122 or another lace to enhance the fit of the footwear 100.

Another configuration of footwear 100 in which inlay strands 132 of knitted component 130 extend into heel region 103 is shown in FIGS. More specifically, the knitted element 131 extends from the throat region of the upper 120 to the heel region 103, and the inlay strand 132 extends from the throat region 131 to the rear of the heel region 103, or , Inserted into the knit element 131. In addition, the portion of the inlay strand 132 that extends into the heel region 103 forms a loop in the throat region that extends around one of the lace openings 123 on each of the sides 104 and 105; The laces 122 extend through the loop.

  For reference purposes, the upper throat region is generally provided in the midfoot region 102 and corresponds to the instep region or top surface of the foot, thereby providing a lace opening 123, tongue 124 and knit element. A portion of the upper 120 including the inner edge 135 of 131 is included. Also, the section of the inlay strand 132 extends to the heel region 103, while the other section of the inlay strand 132 extends between the throat region and the lower area of the upper 120 adjacent to the sole structure 110. It should also be noted.

  The configuration of the knit component 130 of FIGS. 25 to 28 is shown in FIG. A section of the inlay strand 132 extends through the knit element 131 from the throat region to each of the heel edges 134 of both sides 104 and 105 or is inserted into the knit element 131. Further, a portion of the inlay strand 132 exits the knit element 131 at each of the heel edges 134. The advantage with this configuration is that each section of the inlay strand 132 that extends between the throat region and the heel edge 134 is individually tensioned, loosened, or otherwise in the footwear 100 manufacturing process. It may be adjusted.

  The location where the end area of the inlay strand 132 exits the knit element 131 coincides with each other on each of the sides 104 and 105. Once the heel edge 134 is joined as in FIG. 27, the end areas of the inlay strand 132 can contact or be placed adjacent to each other at the seam 143 formed in the heel edge 134. In this configuration, the inlay strands 132 or different sections of the inlay strands 132 are in the heel region so as to increase the support, stability, structure and fit of the footwear 100 in the heel region 103 and to enhance the aesthetic appeal of the footwear 100. 103 extends effectively around 103. In some configurations, a fabric strip or flushing may be along the seam 143 or may cover the seam 143.

  The portion of the inlay strand 132 that extends between the throat region and the heel edge 134 is substantially parallel to the ankle opening 121 or the portion of the inner edge 153 that forms the ankle opening 121. It is drawn. The advantage of this configuration is that the inlay strand 132 can provide stable support, stability, structure and fit along most of the outer periphery of the ankle opening 121. However, if at least 4 centimeters of inlay strand 132 is parallel to the ankle opening 121, or at least 4 centimeters of inlay strand 132 is parallel to the ankle opening 121 and 3 centimeters of ankle opening 121. Similar advantages can be obtained when placed within. In other words, by placing the inlay strand 132 relatively close to the ankle opening 121 and along the ankle opening, stable support, stability, structure, and fit can be realized. It should also be noted that the inlay strand 132 may be placed in the immediate vicinity of the knit layer 140 and the floating yarn 141 or spaced from the knit layer and the floating yarn. Further, the inlay strand 132 may be substantially parallel to the floating yarn 141.

  The concept that the inlay strand 132 extends between the throat region and the heel region 103 may be embodied in the footwear 100 in various ways. For example, referring to FIG. 30A, two portions of inlay strand 132 extend to heel region 103 forming a loop around two separate lace openings 123. Although the section of the inlay strand 132 may be substantially parallel to the ankle opening 121, FIG. 30B shows the inlay strand 132 away from the ankle opening 121 and toward the sole structure 110 in the heel region 103. The structure which is extended is shown. The advantage of this configuration is that this section of inlay strand 132 can clamp sole structure 110 against the foot in heel region 103.

  Referring to FIG. 30C, every other section of inlay strands 132 is incorporated into the knit element 131 and exposed on the outer surface of the upper 120. In this configuration, separate and spaced sections of the inlay strand 132 are exposed to form part of the outer surface between the throat area and the rear of the heel area 103. That is, many covered sections of the inlay strand 132 are provided or incorporated in the knit element 131, and other sections of the inlay strand 132 are exposed to expose the throat region and the heel region 103. A part of the outer surface of the upper 120 between the rear portion and the rear portion is formed. Additional configurations of footwear 100 are illustrated in FIGS. 30D and 30E, where the knit component 130 includes various combinations and variations of the concepts described above.

  The method for manufacturing the knitted component 130 may utilize an embodiment comprising the knitting machine 200 and the combination feeder 220. The method may incorporate many of the concepts described above in connection with FIGS. 21A-21I, 22A-22C, and 23. In the embodiment of the knitted component 130, the method also includes forming a knitted element 131 from at least one yarn using a knitting process and inserting the strands 132 into the knitted element 131 during the knitting process. Including. Once the knitting process is substantially complete, the knitted component 130 is incorporated into the upper 120 such that the inlay strand 132 extends from the throat region to the back of the heel region 103.

<Structure of the heel area to be wrapped>
In the footwear 100 configuration illustrated in FIGS. 25-28, a seam 143 is provided in the center of the rear section of the heel region 103. Accordingly, the end areas of the inlay strands 132 may touch each other at the seam 143 or may be located adjacent to each other. Aesthetically, the inlay strands 132 may appear to extend continuously around the heel region 103, but the separate sections of the inlay strands 132 touch each other and are joined at the seam 143, or Adjacent to each other. However, in a further configuration, the seam 143 may be provided in other areas of the footwear 100.

  As an example, FIGS. 31 and 32 show a footwear 100 with a seam 143 on the inner side 105. In this configuration, the knit element 131 and the inlay strand 132 are continuously around the rear area of the heel region 103 (ie, there are no significant discontinuities or seams) to provide the seam 143 on the inner side 105. In) More specifically, the knit element 131 and the inlay strand 132 extend from the throat area on the outer side 104 to the heel area 103 and extend continuously around the heel area 103 to the inner side 105. Yes. The advantages of this configuration are: (a) the comfort of the footwear 100 can be increased by moving the seam 143 from the rear area of the heel region 103; and (b) the knitted component 150 or upper 120 is placed on the heel of the foot. This means that the inlay strand 132 extends continuously around the heel region 103 so that it can be more easily fixed around the region.

  The configuration of the knit component 130 of FIGS. 31 and 32 is illustrated in FIG. The section of the inlay strand 132 is inserted into the knit element 131 and extends rearward from the throat regions of the side portions 104 and 105. The knitted component 130 has the relatively symmetric aspect of FIG. 29, but this configuration is asymmetric, with a greater length on one side and a smaller length on the other side. have. In practice, the area of the knit component 130 associated with the outer side 104 has an increased length extending around the heel region 103 to form part of the inner side 105.

  This US patent application is filed with US Patent Application No. 13 / 048,514, filed March 15, 2011, with the title "Footwear incorporating knitted components", filed with the US Patent and Trademark Office. It is a continuation-in-part application and claims priority to that specification under 35 USC 120, the entirety of such prior application is incorporated herein by reference.

  The present invention is disclosed above and in the accompanying drawings with reference to various configurations. The purpose served by the disclosure, however, is to provide examples of various features and concepts related to the invention, not to limit the scope of the invention. Those skilled in the art will recognize that numerous variations and modifications can be made to the above-described configurations without departing from the scope of the invention as defined in the appended claims.

Claims (28)

An article of footwear having an upper and a sole structure fixed to the upper, wherein the upper is
A knit element formed from at least one yarn and extending from at least a throat region of the upper to a heel region of the upper;
A first section extending through the knit element and extending from the throat area to the rear of the heel area; and a second section extending from the throat area to a lower section of the upper adjacent to the sole structure. and a section, and a inlaid strand of the first segment is separated from the second section,
The inlay strands form at least one loop in the throat region, and the first sections of the inlay strands are exposed every other and form part of the outer surface of the upper every other. Including a plurality of spaced sections;
An article of footwear further comprising a lace extending through the at least one loop.   The knitted element defines an ankle opening for allowing access to a cavity in the upper, and the first section of the inlay strand having a length of at least 4 centimeters includes the throat region The footwear product of claim 1, wherein the footwear product is substantially parallel to the ankle opening between the heel region and the rear portion.   The knitted element defines an ankle opening for allowing access to a cavity in the upper, and the first section of the inlay strand having a length of at least 4 centimeters includes the throat region The footwear product of claim 1, wherein the footwear product is disposed within 3 centimeters of the ankle opening between the back of the heel region. The plurality of spaced apart sections of the first section of the inlay strand alternately form part of the outer surface of the upper between the throat region and the rear portion of the heel region. The footwear product according to any one of claims 1 to 3. Wherein said first section of the inlaid strand, the knit element covered with a plurality of intervals, and the throat region, between the rear of the heel region is provided within the knitted element, wherein The footwear product according to any one of claims 1 to 3.   The plurality of first sections of the inlay strand extend between the throat region and the rear portion of the heel region, and the plurality of second sections of the inlay strand include the throat region and both sides of the upper An article of footwear according to any preceding claim, extending between the lower section of the upper and adjacent to the sole structure. A first portion of the first section of the inlay strand is provided on a first side of the footwear product, and a second portion of the first section of the inlay strand is a first portion of the footwear product. 2 side portions, the first side portion is on the opposite side of the second side portion,
The first portion extends at the first side through the knit element from the throat region to the rear of the heel region, and the second portion is at the second side, 7. An article of footwear according to any of claims 1 to 6, extending through the knit element from the throat region to the rear of the heel region.   8. An article of footwear according to any preceding claim, wherein the at least one loop is provided in the knit element.   The knitted element is formed of a unitary knitted structure, and along the outer side of the upper, along the inner side of the upper, over the forefoot region of the upper, and around the heel region of the upper The footwear product according to any one of claims 1 to 6, wherein the footwear product extends. An article of footwear having an upper and a sole structure fixed to the upper, wherein the upper is
A knit element forming a portion of an outer surface of the upper and an inner surface opposite the upper, wherein the inner surface defines a cavity for receiving a foot, Extending from at least the throat region of the upper to the heel region of the upper, the knitted element defines an ankle opening in the upper to allow access to the cavity, and the knitted element is provided in the throat region A knit element defining a plurality of openings formed;
An inlay strand extending through the knit element, wherein the inlay strand continuously turns around the rear of the heel region from the throat region of the first side of the knit element to the second side of the upper. A first section extending to a portion, and a second section extending from the throat region to a lower section of the upper adjacent to the sole structure, wherein the first section includes the first section An inlay strand that is separated from the second section;
A lace that extends through the opening,
The article of footwear, wherein the inlay strand extends at least partially around the opening in the throat region.   The first section of the inlay strand having a length of at least 4 centimeters is substantially parallel to the ankle opening between the throat region and the back of the heel region. 10. Footwear product according to 10.   The first section of the inlay strand having a length of at least 4 centimeters is disposed within 3 centimeters of the ankle opening between the throat region and the back of the heel region; The footwear product according to claim 10. Every other spaced apart section of the first section of the inlay strand is exposed, between the throat area and the rear of the heel area, every other outer surface. 13. An article of footwear according to any one of claims 10 to 12, which forms part. Of the first zone of the inlaid strand, the knit element covered with a plurality of intervals, and the throat region, provided in the knit element between said rear portion of the heel region, the inlaid strand The other section of the first section is exposed, and forms a part of an outer surface between the throat region and the rear portion of the heel region. Footwear products as described in.   The plurality of first sections of the inlay strand extend between the throat region and the rear portion of the heel region, and the plurality of second sections of the inlay strand include the throat region and both sides of the upper 15. An article of footwear according to any one of claims 10 to 14 extending between the lower section of the upper adjacent to the sole structure. A first portion of the first section of the inlay strand is provided on a first side of the footwear product, and a second portion of the first section of the inlay strand is a first portion of the footwear product. 2 side portions, the first side portion is on the opposite side of the second side portion,
The first portion extends at the first side through the knit element from the throat region to the rear of the heel region, and the second portion is at the second side, 16. An article of footwear according to any of claims 10 to 15, extending through the knit element from the throat region to the rear of the heel region. The knit element is
A first knit layer forming at least a portion of the outer surface of the upper adjacent to the ankle opening;
A second knit layer forming at least a part of the inner side surface of the upper adjacent to the ankle opening, wherein the second knit layer is formed in an integral knit structure together with the first knit layer. The second knitted layer is disposed adjacent to the first knitted layer and defines a tube between the first knitted layer and the second knitted layer. A second knit layer that is at least partially coextensive with the one knit layer;
A plurality of floating yarns provided in the tube and extending in a direction substantially parallel to the first knit layer and the second knit layer;
The footwear product according to claim 10, comprising: A method of manufacturing a footwear product comprising:
Forming a knitted element from at least one yarn using a knitting process;
Inserting a first section of strands and a second section of strands into the knit element during the knitting process;
A step of incorporating the Knitting bets elements to the upper of the article of footwear, said knitted element, extending from said at least the throat region of the upper to the heel region of the upper, first section of the strand, said throat region Extending from the throat region to the rear of the heel region, and the second section of the strand extends from the throat region to the outer edge of the lower section of the upper, and the first section is separated from the second section. and the process, only including,
Wherein the first section of the strand includes a plurality of spaced apart sections that are exposed to form a portion of the outer surface of the upper .   The method of claim 18, wherein using the knitting process comprises selecting the knitting process to be a weft knitting process.   The step of inserting the first section of the strand includes the step of forming a loop from the first section of the strand, and the step of incorporating includes (a) providing the loop in the throat region; 20. A method according to claim 18 or claim 19 comprising b) extending a lace through the loop.   Using the knitting process includes forming an opening in the knitted element, and inserting the first section of the strand from the first section of the strand extending around the opening. Forming a loop, wherein the incorporating step includes: (a) providing the opening and the loop in the throat region; and (b) extending a lace through the opening and the loop. 21. A method according to any of claims 18-20. An article of footwear having an upper and a sole structure fixed to the upper, wherein the upper is
A knit element forming a portion of an outer surface of the upper and an inner surface opposite the upper, wherein the inner surface defines a cavity for receiving a foot, A knit element extending from at least the throat region of the upper to the heel region of the upper;
An inlay strand extending through the knit element, wherein the inlay strand is adjacent to the sole structure from the throat region and a first section extending from the throat region to the rear of the heel region. and a second section that extends to the lower section of the upper, the first section is seen containing a and inlaid strand that is remote from said second section,
The article of footwear , wherein the first section of the inlay strand has a plurality of spaced apart sections that are exposed and form part of the outer surface of the upper .   The knit element defines an ankle opening in the upper, and the first section of the inlay strand having a length of at least 4 centimeters is between the throat region and the rear portion of the heel region. 23. The article of footwear recited in claim 22, wherein the article of footwear is substantially parallel to the ankle opening.   The first section of the inlay strand having a length of at least 4 centimeters is disposed within 3 centimeters of the ankle opening between the throat region and the back of the heel region; 24. An article of footwear according to claim 23.   The plurality of first sections of the inlay strand extend between the throat region and the rear portion of the heel region, and the plurality of second sections of the inlay strand include the throat region and both sides of the upper 25. An article of footwear according to any one of claims 22 to 24, which extends between the lower section of the upper adjacent to the sole structure. An article of footwear having an upper and a sole structure fixed to the upper, wherein the upper is
A knit element extending from at least a throat region of the first side of the footwear to a heel region of the footwear, wherein the knit element is from around the heel region and opposite the first side. A knit element extending continuously to a second side of the footwear;
An inlay strand extending through the knit element, the first section extending from the throat region of the first side of the footwear to the rear of the heel region; and the first side of the footwear. A second section extending from the throat region of the portion to a lower section of the upper adjacent to the sole structure, the first section being separated from the second section. A strand,
The footwear product, wherein the first section of the inlay strand extends continuously around the heel region and extends to the second side of the footwear.   27. The article of footwear recited in claim 26, wherein the first section of the inlay strand forms a loop in the throat region and a lace extends through the loop.   The first side portion is an outer side portion of the footwear, the second side portion is an inner side portion of the footwear, and a seam that joins two edges of the knit element is formed on the inner side portion. 28. An article of footwear according to claim 26 or claim 27 provided.

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