Upper for an article of footwear

Abstract

An upper for an article of footwear has an outer vamp structure and an inner vamp structure. An ankle collar is formed at the interconnection between the outer vamp structure and the inner vamp structure and completely surrounds a shoe opening. The inner vamp structure has a pocket in a heel region, and a heel cup or heel counter insert in the heel region is partially located between the first interior surface and the second interior surface, and an upper portion of the heel cup or heel counter insert is disposed within the pocket. The ankle collar contacts a rearward facing surface of the pocket. The heel counter insert can also be attached to a multi-layer insole, which is then collectively inserted into the upper.

Description

[0001] This application is a divisional application of Chinese application filed on July 31, 2024, with application number 202421848529.4 and invention title "Shoe Upper for Footwear Articles".

[0002] Cross-references to related applications

[0003] This patent application incorporates, by reference, the entire contents of the following applications: International Patent Application No. PCT / US2022 / 046726, filed October 14, 2022; U.S. Patent Application No. 18 / 199,262, filed May 18, 2023; U.S. Patent Application No. 18 / 199,250, filed May 18, 2023; and U.S. Patent Application No. 18 / 199,274, filed May 18, 2023. Technical Field

[0004] This utility model relates to the field of footwear technology, and in particular to a shoe upper and a shoe having the shoe upper. Background Technology

[0005] In footwear, existing sock-like upper designs—where the upper is formed from a single piece of knitted or woven sock-like material—are known for their comfort and snug fit. However, these designs often present challenges for easy on and off, as they tend to lack the necessary structure or resilience to maintain an upright position during the process. This lack of support, particularly around the heel area, often necessitates using the hands to properly open the shoe while inserting the foot. Furthermore, existing sock-like upper designs are not configured to accommodate additional heel components, nor are they designed to provide double-layer and / or support for such heel components through openings around the upper. Utility Model Content

[0006] Various aspects of this invention relate to a novel sock-like construction for shoe uppers, comprising a single elongated circular knitted tube, which is then folded inward over itself to form at least a double-layered sock. This folding process produces two coherent sock layers, allowing for a seamless ankle collar that forms the shoe opening.

[0007] In addition, various aspects of this utility model relate to a shoe having a structure that allows for easier insertion of the foot.

[0008] In one aspect of this invention, the upper material is made of a knitted structure. The process of forming the knitted structure includes forming an outer sock layer structure and an inner sock layer structure. Each of the outer sock layer structure and the inner sock layer structure is similar to the general size of a sock. Each of the outer sock layer structure and the inner sock layer structure may have a toe area, a midfoot area, a heel area, an insole portion, and an upper portion.

[0009] In another aspect of this invention, the heel counter may include a heel cup. The heel cup may be uniformly molded with an upper portion, a middle portion, and a lower portion, with the upper portion having a smaller inner-outer length than the middle portion. The middle and lower portions may form concave structures configured to receive the heel. The upper portion of the heel cup has an overall downward inclination relative to a vertical line orthogonal to a horizontal surface of the floor, with the highest portion extending rearward. The upper portion has an upper surface that may have a convex curved portion along a vertical section at the rearmost part of the heel cup, such that the bottom of the heel is guided to slide after the foot is inserted. The convex curved portion may further bend downward and turn to form concave structures at the middle and lower portions.

[0010] The upper portion of the heel cup protrudes and may extend above the inner and outer collar portions of the upper. The upper may have a horizontal curve that extends relative to the inner-outer curve of the heel portion of the upper. The length of the horizontal curve may be configured to accommodate and at least partially cup-support at least a portion of the bottom of the heel when the foot is inserted into the shoe.

[0011] The heel cup can be formed of a rigid structure that is substantially uncompressed after the foot is inserted. In such a configuration, the upper can have elastic portions that allow the upper to stretch when the foot is inserted into the shoe. Upon insertion, pressure is applied to the upper portion of the heel cup. If the heel cup is substantially rigid, the pressure can push it backward. The heel cup can be used in conjunction with the elastic portions in the upper to allow the heel cup to move backward during foot insertion. After insertion, the rigid heel cup can return to its original position to hold the foot in place and support it during use.

[0012] The upper portion of the heel cup can also be compressed during foot insertion, wherein the upper portion can have a first configuration in its natural state and can deform into a second configuration under the load of the user's foot when the user is wearing footwear. After the load of the user's foot is removed, the heel cup can return to the first configuration. In the second configuration, at least a portion of the upper portion is lowered relative to the first configuration, and the upper portion can return to the first configuration after the load of the user's foot is removed. The middle portion may include a peripheral portion having a first thickness and a central portion having a second thickness, wherein the second thickness is less than the first thickness.

[0013] According to this embodiment, in the first configuration, the upper portion has a downward inclination at a first angle relative to a vertical line orthogonal to a horizontal surface of the floor, and in the second configuration, the upper portion has a second inclination at a larger angle than the first angle. Additionally, in the second configuration, the lower region of the central portion of the heel cup extends outward in a direction away from the shoe opening, causing the shoe opening to widen in the inward-outward direction.

[0014] The inner foam layer may be a flat material lining covering at least a portion of the inner surface of the heel cup; or the foam layer may include areas with additional padding. The foam layer provides cushioning and comfort for the foot and helps secure the foot within the upper after insertion. In one embodiment, the foam layer may project and elongate with a circular forward surface. The foam layer may form a U-shaped pad around the area of ​​the heel cup, such that the padding contacts the foot above the calcaneal region and around the posterior portion of the subtalar joint or at least a portion of the topmost area of ​​the shoe opening accommodating the foot. The foam layer may at least partially surround and extend above the shoe opening accommodating the foot. During foot insertion, the foam layer may be compressed by the user's heel, in an uninflated or first partially compressed state. After the foot is inserted into the shoe, the foam layer may inflate to its uninflated state or a second partially compressed state, wherein the second partially compressed state is less compressed than the first partially compressed state. This configuration allows the inner foam layer to apply sufficient pressure on or around the user's ankle to secure the foot into the shoe. For example, during activities such as walking or running, the heel bone portion of the foot can not be easily removed from the shoe. In areas where less padding is needed, such as where the foam layer extends around the ankle to apply pressure, the foam layer can have a tapered or flat dimension.

[0015] The foam layer and heel cup can be constructed as a separately formed heel counter insert, which is then positioned within the upper. The heel counter insert can be covered with a foam overlay material. The heel counter insert can have a retaining flap constructed of the foam layer and / or foam overlay material, extending downward at the bottom of the heel counter insert. The heel cup can terminate above the heel flap, or a portion of the heel cup can extend downward within or beside the flap. The retaining flap can be folded to be substantially perpendicular to the vertical dimension of the heel counter and inserted along the insole of the upper, sock lining, or insole. The retaining flap can be attached to the top surface of the insole of the upper, sock lining, insole, or outsole.

[0016] The overlay can cover a heel counter insert having a heel cup and a foam layer. The overlay is a portion of the inner sock structure that extends above and is exposed above the ankle collar of the shoe, and forms part of the outer sock structure. The overlay can have a front overlay portion and a rear overlay portion. The front overlay portion can cover the inward surface of the heel counter. The rear overlay portion can cover at least a portion of the outward surface of the heel counter. The overlay can be integrally formed with the sock, for example, by integral knitting or weaving. This monocoque construction eliminates the need for a separate overlay for the heel cup, thus allowing for more efficient production. When the overlay is part of both the outer and inner sock structures, it forms an integral pocket that accommodates the heel cup insert or the heel counter insert.

[0017] Furthermore, the one-piece pouch at least tightly accommodates the contours of the upper and / or middle portion of the heel cup or heel counter insert. The one-piece pouch can be seamless, thereby providing greater comfort for the foot. It should be noted that tubular socks with one-piece pouches can also be constructed using knitted materials or engineered mesh fabrics or textiles known to those skilled in the art.

[0018] Because the one-piece pouch wraps around the rear surface of the heel cup or heel counter insert, the pouch can extend downwards below the level of the ankle collar and down to the inner sock layer of the upper at the ankle collar and the back of the upper. The inner sock layer of the upper can then extend upwards to the top of the ankle collar and then wrap around the ankle collar to meet the outer surface of the sock layer.

[0019] The upper may also have a one-piece ankle collar (or may be referred to as a one-piece ankle strap, bandage, area, wing, extension, or any other term commonly used to define a one-piece component). The one-piece ankle collar is a further extension of the sock and extends away from the sock portion covering the outer heel counter. The ankle collar wraps around the outer cover portion of the overlay. The ankle collar may include two layers, each forming part of the inner sock layer structure and the outer sock layer structure, respectively. The rear cover portion of the overlay and the ankle collar may be integrally formed or formed separately. When integrally formed, the rear cover portion and the ankle collar may be knitted textile materials, engineered mesh fabrics, or textiles known to those skilled in the art.

[0020] A portion of the outer sock layer and a portion of the inner sock layer may include an integrated ankle collar that may surround the rear surface of the integrated pouch and extend horizontally below the upper portion of the heel cup.

[0021] The pouch and ankle collar are integrated into the inner and outer sock layers, allowing for easy assembly of the upper. The outer sock layer and ankle collar provide external protection for the upper. Furthermore, the ankle collar can be an elastic tension band, allowing the heel cup to move backward as the foot is inserted into the shoe and return to its original position once the foot is inserted.

[0022] In another aspect of this invention, the insole can be placed through openings in the outer or inner sock layer structure, and is positioned primarily between the mating surfaces of the outer and inner sock layer structures in the area corresponding to the insole portion. Subsequently, the outer sock layer structure can be attached to the midsole or outsole. Attached Figure Description

[0023] By way of example only, selected embodiments and aspects of the present invention are described below. Each description refers to the accompanying drawings (“Figures”) illustrating the described content. Some of the figures shown in the accompanying drawings or photographs may be footwear for the left or right foot. Each figure includes one or more identifiers for one or more parts or elements of the present invention.

[0024] Various embodiments are described with reference to the accompanying drawings, in which:

[0025] Figure 1 This is a front view of the heel cup.

[0026] Figure 2 yes Figure 1 A 3D image of a foot cup.

[0027] Figure 3 yes Figure 1 A side view of the heel cup.

[0028] Figure 4A and Figure 4B yes Figure 1 The heel cup is in a compressed configuration ( Figure 4A ) and uncompressed configuration ( Figure 4B (A side-by-side frontal stereoscopic view of the image.)

[0029] Figure 4C and Figure 4D yes Figure 1 The compressible heel cup is placed inside the shoe in its compression configuration. Figure 4C ) and its uncompressed configuration ( Figure 4D (A side-by-side top view of the plane.)

[0030] Figure 5 This is a front view of a heel cup configured with a series of intersecting sections.

[0031] Figure 6A yes Figure 1A schematic diagram of the arc length of the rear part of the heel cup.

[0032] Figure 6B It is along Figure 1 The line 6-6 in the middle is cut off Figure 1 A cross-sectional view of the heel cup.

[0033] Figure 7 This is a side view of the heel counter, with the heel cup located inside the heel counter.

[0034] Figure 8 yes Figure 7 A top view of the heel and back of the foot.

[0035] Figure 9 yes Figure 7 A 3D diagram of the heel counter.

[0036] Figure 10 It is a three-dimensional view of the shoe upper with a heel counter that includes a heel cup.

[0037] Figure 11 It has Figure 10 A side view of the shoe's upper.

[0038] Figure 12 It has Figure 10 The rear view of the shoe's upper.

[0039] Figure 13 It has Figure 10 The rear view of the shoe upper, where the ankle collar is pulled down.

[0040] Figure 14 It has Figure 10 A top view of the shoe's upper.

[0041] Figure 15 It is along Figure 14 The line 15-15 is cut from the middle. Figure 14 A cross-sectional view of the heel area of ​​the shoe upper.

[0042] Figure 16 This is a three-dimensional view of the elongated interfacing surfaces of the knitted structure before the flipping process that forms the double-layer sock upper.

[0043] Figure 17 This is a three-dimensional view of the elongated counterfacing surfaces of the knitted structure before the flipping process that forms the double-layer sock upper.

[0044] Figure 18 It is cut at the longitudinal center line of the slender knitted structure. Figure 17 A cross-sectional view.

[0045] Figure 19 It is taken at the longitudinal center line of the knitted structure after the flipping process of forming the double-layer sock upper. Figure 17 A cross-sectional view.

[0046] Figure 20 This is a top view of the multi-layered insole.

[0047] Figure 21 It is along Figure 20 The line 21-21 in the middle is cut off Figure 20 A cross-sectional view of the inner bottom.

[0048] Figure 22 yes Figure 20 An exploded view of the inner bottom.

[0049] Figure 23 This is a bottom view of the multi-layered insole.

[0050] Figure 24 This is a cross-sectional view of a shoe with a multi-layered insole.

[0051] Figure 25 This is a cross-sectional view of the heel counter insert.

[0052] List of reference numerals in the attached diagram:

[0053] 14: Shoe sole;

[0054] 16: Shoe upper;

[0055] 32: Heel counter;

[0056] 34: Heel counter insert

[0057] 46: Lining;

[0058] 48: Shoe opening;

[0059] 50: Central section;

[0060] 52: Foot cup;

[0061] 54: The lower part of the heel cup;

[0062] 58: The middle part of the heel cup;

[0063] 64: The upper part of the heel cup;

[0064] 66: Inner wall;

[0065] 68: The top edge line of the heel cup;

[0066] 70: The circumference of the heel cup;

[0067] 84: Heel cup neckline;

[0068] 86: Vertical line (orthogonal to the horizontal surface);

[0069] 88: The horizontal surface of the floor;

[0070] 90: The center line of the heel cup;

[0071] 92: Foam layer;

[0072] 94: Highlighted Part

[0073] 102: Knitted Structure

[0074] 104: Outer sock layer structure

[0075] 105: Inner sock layer structure

[0076] 110: First toe area

[0077] 111: Second toe area

[0078] 112: First midfoot area

[0079] 113: Second midfoot area

[0080] 114: First heel area

[0081] 115: Second heel area

[0082] 116: First insole section

[0083] 117: Second insole section

[0084] 118: Orifice

[0085] 122: Internal side

[0086] 123: External side

[0087] 124: First mating surface

[0088] 125: Second mating surface

[0089] 126: First relative surface

[0090] 127: Second opposing surface

[0091] 134: Tongue area

[0092] 135: Perforation

[0093] 136: Insole

[0094] 137: Top Inner Bottom

[0095] 138: Middle inner bottom layer

[0096] 139: Bottom Inner Layer

[0097] 140: Pouch

[0098] 142: Ankle collar

[0099] 144: Upper boundary

[0100] 146: Lower boundary

[0101] 152: Front Coverage

[0102] 154: Back Coverage

[0103] 162: Fixed airfoil

[0104] 164: Notch

[0105] 166: Inner insole support pad

[0106] 168: Exposed Area

[0107] A1: Tilting downwards

[0108] AL: Amplitude of the lower part of the arc

[0109] AU: Amplitude of the arc in the upper part

[0110] WU: Width of the upper part of the arc

[0111] WL: Width of the lower part of the arc

[0112] T1: Thickness of the heel cup Detailed Implementation

[0113] The shoe may include a sole and an upper. The sole may include an outsole, a midsole, and / or a one-piece outsole and midsole. The upper may include a toe cap, a vamp, a tongue, a medial midsole, a lateral midsole, and a heel counter. The shoe has a forefoot portion, a rear portion, a medial side, and a lateral side. The upper may include an outer layer, an inner layer or internal structure, and / or a lining. The upper may form an opening that accommodates the user's foot when the user wears the shoe. These areas are conceptually defined, rather than discrete, physically demarcated segments. Thus, the figures in this application depict the approximate locations of these areas and portions.

[0114] The heel counter or rear portion of the shoe upper may include a heel cup to facilitate easier insertion of the foot into the shoe opening. The upper portion of the heel cup has an overall downward slope at a first angle relative to a vertical line perpendicular to a horizontal surface orthogonal to the floor, with its highest point extending rearward. The upper portion has an upper surface that may have a convex curved portion along the rearmost vertical section of the heel cup, guiding the bottom of the heel to slide after insertion. The convex curved portion may further curve downward and bend to form concave structures in the middle and lower portions of the heel cup.

[0115] The upper portion of the heel cup protrudes and may extend above the inner and outer collar portions of the upper. The upper may have a horizontal curve that extends relative to the inner-outer curve of the heel portion of the upper. The length of the horizontal curve may be configured to accommodate and at least partially cup-support at least a portion of the bottom of the heel when the foot is inserted into the shoe.

[0116] The heel cup can be formed of a rigid structure that is substantially not compressed after the foot is inserted. In such a configuration, the upper can have elastic portions that allow the upper to stretch when the foot is inserted into the shoe. When the foot is inserted, pressure is applied to the upper portion of the heel cup. If the heel cup is substantially rigid, the pressure can push the heel cup backward. The heel cup can be used in conjunction with the elastic portions in the upper to allow the heel cup to move backward during foot insertion. After the foot is inserted, the rigid heel cup can return to its original position to hold the foot in place and support it during use.

[0117] A heel cup allows for easier insertion and removal of the foot. The heel counter or rear portion of the upper allows the shoe to be configured to temporarily widen the opening to accommodate the foot when the user is putting on or removing the shoe. This widening of the shoe opening can be initiated by the user applying a load to the heel counter or rear portion of the upper, which can be applied by the user's foot with little or no assistance from the user's hands. In one exemplary embodiment of the invention, the heel counter can be compressible and return to its uncompressed state when subjected to sufficient load. The heel counter can have a heel cup that lowers or has a compressible layer that compresses under load, thereby widening the shoe opening and allowing easier insertion of the user's foot. Once the foot is inserted into the shoe, the heel counter can have a compressible layer, such as a foam layer or component, that can further secure or enhance foot stability during normal wear of the shoe.

[0118] Foot cup. (Reference) Figures 1 to 10In one embodiment, the heel counter 32 may include a compressible heel cup 52, which may be an internal component of the upper 16, a portion of the lining 46, or an attachment adjacent to the lining 46 of the upper 16 that allows the heel cup 52 to contact the foot, or a portion of the outer layer 42 of the upper 16 or an attachment to the outer surface of the outer layer 42 of the upper 16.

[0119] refer to Figure 1 As shown in the exemplary embodiment of Figure 4, the shape of the heel cup 52 substantially corresponds to the heel cover, and its outline is similar to a pear shape. The inner-outer width of the heel cup near the heel cup collar 84 is smaller than the inner-outer width of the lower portion 54, as... Figures 1 to 2 As shown

[0120] like Figure 2 As shown, the inner wall 66 of the upper portion 64 of the heel cup at the rear of the heel cup can be inclined downwards from 0 to 90 degrees relative to a vertical line 86 orthogonal to the horizontal surface 88 of the floor. In this exemplary embodiment, the inner wall 66 of the upper portion 64 can have a downward inclination of 30 degrees. The inner wall 66 of the upper portion 64 of the heel cup 52 can also have a convex curve facing the shoe opening 48. The top portion of the convex curve has a downward inclination of 30 degrees A1. The lower portion of the convex curve extends directly above the portion of the heel cup 52 that receives the heel. The lower portion of the convex curve can have a downward inclination of less than A1, and gradually decreases as its inclination approaches equal to that of the vertical line 86. The heel cup 52 has a concave curve surrounding the rear portion of the heel. The inner and outer sides of the heel cup 52 can also extend and form support for the portion of the shoe waist and even further to the forefoot.

[0121] The thickness of the heel cup 52 can decrease at various locations. The top edge line 68 can gradually narrow the inner and outer surfaces of the heel cup 52. The heel cup 52 can have an increasing thickness T1 along other peripheral edges, such as 2 mm to 3 mm. In another exemplary embodiment, the thickness T1 can decrease in certain areas to provide greater flexibility for the heel cup 52 when putting on or removing the shoe 12. In one embodiment, the thickness T1 of the heel cup 52 can gradually decrease from the peripheral portion 70 forming a region at the periphery of the heel cup 52 towards the central portion or region 50 of the intermediate portion 58. The minimum thickness T1 in the central region 50 of the intermediate portion 58 can be approximately (but not limited to) 1 / 4 to 1 / 6 of the thickness relative to the thickest portion at the periphery of the heel cup 52, such as 0.5 mm to 1 mm. The thickest region at the top can be greater than the thickest region at the bottom. The reduced thickness T1 in the central region of the intermediate portion 58 can allow the heel cup 52 to compress under sufficient load. In an alternative embodiment, the thickness T1 may be reduced throughout the entire inner-outer portion or in multiple areas (such as areas in the middle portion 58 and / or the upper portion 64). Thinner areas can increase the flexibility and flexural capacity of the heel cup 52, providing the necessary compressibility under the load of the user's foot, such as during wearing of the shoe 12. Such compression allows the upper portion 64 and / or the middle portion 58 of the heel cup 52 to move rearward and widen the shoe opening 48 to allow easier foot entry. When the user wears the footwear, the heel cup 52 can deform from a first configuration in its natural state to a second configuration under the load of the user's foot. For example, the heel cup 52 may be partially compressed such that the upper portion 64 and / or the middle portion 58 of the heel cup 52 is lowered sufficiently to allow the user's foot to enter. See, for example, [link to relevant documentation]. Figure 4A and Figure 4C Once the user's foot is inserted into the shoe 12, the heel cup 52 can return to its uncompressed configuration.

[0122] According to this embodiment, when the user wears the shoe 12, the convex curved top portion of the heel cup 52 or the uppermost section of the heel counter 32 of the shoe 12 can be lowered and extended backward away from the foot as the heel counter 32 is compressed, such as... Figure 4A As shown. This action allows the user's foot to be inserted into the shoe opening 48 with a reduced degree of plantar flexion. During compression of the heel cup 52, a portion of the heel cup 52 can move forward toward the forefoot portion. Deformation of the heel cup 52 may include widening of the attached heel counter 32 as the heel cup moves outward, both medially and laterally, thereby widening the shoe opening. This medial-lateral widening of the shoe opening 48 allows for easier entry, such as easier insertion, of the forefoot portion of the user's foot. In one exemplary embodiment, a 7.5 cm shoe opening can be widened to 4 cm, or approximately 50%. See also Figure 4Cand Figure 4D Depending on the shoe size and the flexibility of the heel cup, the widening can be smaller or larger. In some shoes, depending on the needs of fixation and use, the desired widening can be smaller or larger.

[0123] exist Figure 1 In the exemplary embodiment of the heel cup 52 shown in Figure 4, the thickness T1 of the heel cup 52 made of a polymer material (such as DuPont Hytrel) can range from 0.4 mm to 4 mm. Depending on the required elasticity and durability of the material, the thickness T1 of the heel cup can be thinner or thicker in various regions. For example, the midpoint region can be thinner than the surrounding regions, and in particular, the central portion can be thinner than the peripheral portions, such as... Figure 6B As shown. The central portion may be separated from the inner and outer edges, with the peripheral edges potentially having a greater thickness. Other suitable materials may include other thermoplastic elastomers or other polymers capable of providing compressible properties to the heel cup.

[0124] In another exemplary embodiment, the heel cup may be configured to have a series of intersecting segments that form an egg carton-like configuration. Figure 5 An exemplary embodiment with diagonally arranged segments is shown. In alternative embodiments, the segments may also be arranged vertically and laterally. The openings between the segments may be set to a generally consistent size. The segments may be uniformly sized, or the thickness and width of the segments may vary. Thinner or narrower segments may be used to increase flexibility and compressibility at a given location, while thicker or wider segments may provide different degrees of rigid support. For example, a segment may be thinner in the middle portion, particularly in the central portion spaced from the edges. The surrounding segments may be thicker than the central portion. The central portion may allow greater flexibility to deform under load.

[0125] In an exemplary embodiment, the rear portion of the heel cup 52 may have an overall vertical cross-sectional shape that is generally similar to an S-wave, such as... Figure 6AThe cross-sectional view is shown. The upper and lower portions of the S-wave can be distinguished at point P1, which crosses the horizontal plane, i.e., the midline 90, drawn between the upper and lower arc ends of the S-wave and intersecting with the heel counter 52 and the inflection point of the S-wave. The amplitude (AU) and width (WU) of the arc of the upper portion of the S-wave can differ from the amplitude (AL) and width (WL) of the lower arc of the lower portion of the S-wave. In an exemplary embodiment, WU is approximately 0.44 times WL. AU is approximately 1 / 3 of AL, where the depth of the upper bend is less than that of the lower bend. In one possible embodiment, WU is approximately 2 cm, while WL is approximately 4.5 cm. AU is approximately 3 mm, while AL is approximately 9 mm. The AU / AL and WU / WL in the cross-section of the region extending from the cross-section of the rearmost portion of the heel cup 52 are both reduced, and can consist only of the lower arc along the inner and outer sides of the heel cup 52. The measurements taken at the rear portion of the heel cup 52 in the exemplary embodiment are intended to be illustrative.

[0126] The central area of ​​the heel cup's middle section can have a single or multiple openings. Just as the central area of ​​the middle section can be constructed with a material less than the maximum thickness of the collar and / or the maximum thickness of the base, the central area of ​​the heel cup's middle section can be constructed with a material that is more flexible than the material forming its periphery. The final effect of a central area including a single or multiple openings, a smaller thickness, and / or greater flexibility is to facilitate the user's foot entering and removing from the shoe.

[0127] According to an exemplary embodiment, the heel cup 52 can be attached at least to the foam layer 92, such as Figure 10 As shown. The heel cup 52 can be located inside the heel counter 32 of the upper 16, as... Figures 7 to 10 As shown. The foam layer 92 can line both the inner wall 66 and the outer wall of the heel cup 52. Around the upper and middle portions, the foam layer 92 can protrude and extend further into the shoe opening 48. The foam layer 92 can be thicker at or near the upper portion 64 and middle portion 58 of the heel cup 52, thus forming part of the collar of the shoe opening 48. Once the user's foot is inserted into the shoe 12, the thicker foam layer 92 provides fixation, as the foam will be positioned above the heel bone region of the user's foot and extend around at least a portion of the ankle region. Because the foam is compressible, it can be compressed by the heel during foot insertion or removal and holds the foot at the ankle once the user's foot is inserted.

[0128] In another aspect of this invention, the heel cup 52 may be uniformly molded with an upper portion 64, a middle portion 58, and a lower portion 54, and the upper portion 64 has a smaller inner-outer length than the middle portion 58. The middle portion 58 and the lower portion 54 may form concave structures configured to accommodate the heel. The upper portion 64 of the heel cup 52 has an overall downward inclination at a first angle relative to a vertical line 86 orthogonal to a horizontal surface 88 of the floor, wherein the highest portion extends rearward. The upper portion 64 has an upper surface that may have a convex curved portion along the rear vertical section of the heel cup, such that the bottom of the heel is guided to slide after the foot is inserted. The convex curved portion may be further bent downward and turned to form concave structures at the middle portion 58 and the lower portion 54.

[0129] The upper portion 64 of the heel cup 52 protrudes and may extend above the inner and outer collar portions of the upper. The upper may have a horizontal curve that extends relative to the inner-outer curve of the heel portion of the upper. The length of the horizontal curve may be configured to accommodate and at least partially cup-support at least a portion of the bottom of the heel when the foot is inserted into the shoe.

[0130] In another exemplary embodiment of the heel counter, the heel cup 52, having an S-wave dimension similar to that described above, can be formed of a rigid structure that is substantially not compressed after the foot is inserted. In such a configuration, the upper 16 can have an elastic portion that allows the upper to stretch when the foot is inserted into the shoe. When the foot is inserted, pressure is applied to the upper portion 64 of the heel cup 52. If the heel cup is substantially rigid, the pressure can push the heel cup 52 backward. After the foot is inserted, the rigid heel cup 52 can return to its original position to secure the foot inside the shoe and support the foot during use.

[0131] According to this embodiment, the rigid heel cup 52 may have a uniform thickness, or it may have varying thickness or lack of material in the middle or lower portion of the heel cup.

[0132] According to this embodiment, in the first configuration, the upper portion 64 has a downward inclination A1 at a first angle relative to a vertical line 86 orthogonal to the horizontal surface 88 of the floor, and in the second configuration, the upper portion 64 has a downward inclination A1 at a second angle larger than the first angle. Additionally, in the second configuration, the lower region of the central portion 50 of the heel cup extends outward in a direction away from the shoe opening, which widens the shoe opening in the inward-outward direction.

[0133] The heel cup can be used in conjunction with a foam layer 92, which can be a flat material lining covering at least a portion of the inner surface of the heel cup 52, or the foam layer 92 can include areas with additional padding, such as... Figure 15The embodiment shown. In one embodiment, the foam layer 92 may protrude near the upper and middle portions of the heel cup and be circular or substantially tubular, and the foam layer 92 may form a U-shaped pad around the area of ​​the heel cup 52, wherein at least a portion of the foam layer contacts the foot above the calcaneal region and around the posterior portion of the subtalar joint or the topmost region of the shoe opening 48 accommodating the foot. The foam layer 92 may extend at least partially around the shoe opening 48 accommodating the foot. During foot insertion, the foam layer 92 may be compressed by the user's heel, such that the foam is in an uninflated state or a first compressed state. After the foot is inserted into the shoe, the foam layer 92 may inflate to its fully uninflated state or a second compressed state, wherein the second compressed state is less compressed than the first compressed state. This configuration allows the inner foam layer 92 to apply sufficient pressure on or around the user's ankle to secure the foot to the shoe. For example, during activities such as walking or running, the calcaneal portion of the foot may not be easily removed from the shoe. In areas where less padding is needed, such as where the foam layer 92 extends around the ankle to apply pressure, the foam layer 92 can have a tapered or flat dimension. The protruding foam layer also increases the flex of the lower portion of the upper for better heel support.

[0134] The heel cup 52 and the foam layer 92 can form the heel counter insert 34, which can be constructed separately and inserted between the layers of the upper. Figures 24 to 25An exemplary embodiment of the heel counter insert 34 is shown. The heel counter insert 34 may have a foam layer 92 that completely surrounds the heel cup 52 and has a protrusion 94 on the inner surface of the heel cup located at the upper and middle portions of the heel cup. The protrusion 94 extends from the rear portion of the heel cup and along the inner surface of the heel cup, thereby forming a U-shape. The end of the protrusion 94 may taper to the inner and outer sides of the heel counter insert 34 and may taper vertically above and below the protrusion 94. The heel counter insert 34 may also have a retaining flap 162, which may be constructed of a foam layer or foam covering material, which may be a mesh fabric, textile, polymer film, or any other material known to those skilled in the art. The heel cup and / or foam layer may terminate above the retaining flap 162. Alternatively, a portion of the heel cup and / or foam layer may extend downward within or beside the flap. The fixed wing 162 and all its components are capable of being folded or bent at an angle perpendicular or approximately perpendicular to the wall of the heel cup. The fixed wing 162 may also have at least one cut or notch 164 to allow it to fold or bend without deforming, as it extends around the curvature of the heel counter that in turn surrounds the rear portion of the heel. The fixed wing 162 can then be attached, sewn, or glued to the upper, sock lining, insole, one layer of a multi-layered insole, or the top surface of the sole.

[0135] The heel counter insert 34 can be located and bonded to the outer and inner layers of the upper. The upper portion of the heel counter insert 34 can also be located within a pocket 140 of the upper, which extends above the ankle collar 142 of the shoe opening. According to embodiments involving bonding the heel counter insert to a sock lining, insole, or sole component, the combined structure can be inserted between two layers of the upper, wherein the upper portion of the heel counter inserts into the pocket of the upper.

[0136] Double sock layer: Reference Figures 11 to 19 and Figure 24 In one embodiment, the upper 16 includes a knitted structure 102 defining an elongated circular knitted tube that is then folded inward (i.e. flipped over) onto itself to form a double sock with two consistent sock layers and a seamless ankle collar 142 forming a shoe opening 48 for receiving the foot.

[0137] Regions and Alignment. The process of forming the knitted structure 102 includes forming an outer sock layer structure 104 and an inner sock layer structure 105. Each of the outer sock layer structure 104 and the inner sock layer structure 105 is similar to the general dimensions of a sock. Each of the outer sock layer structure 104 and the inner sock layer structure 105 may have a toe area, a midfoot area, a heel area, and an insole portion. When the knitted structure is folded inward (i.e., flipped) over itself, these corresponding segments of the outer sock layer structure 104 and the inner sock layer structure 105 are aligned. These regions are conceptually defined, rather than discrete, physically demarcated segments. Thus, the figures of this application depict the approximate locations of these regions and portions.

[0138] In one embodiment, the outer sock layer structure 104 has a first toe region 110 corresponding to the position of the user's toes after the shoes are worn, a first heel region 114 corresponding to the position of the user's heel after the shoes are worn, a first midfoot region 112 between the first toe region 110 and the first heel region 114, and a first insole portion 116 corresponding to the bottom side of the user's foot. Similarly, the inner sock layer structure 105 has a second toe region 111 corresponding to the position of the user's toes after the shoes are worn, a second heel region 115 corresponding to the position of the user's heel after the shoes are worn, a second midfoot region 113 between the second toe region 111 and the second heel region 115, and a second insole portion 117 corresponding to the bottom side of the user's foot.

[0139] The shoe upper 16 provided in this embodiment also includes a heel counter 32 or a heel counter insert 34. When the knitted structure 102 is flipped, the heel counter 32 or the heel counter insert 34 is disposed between the first heel region 114 and the second heel region 115.

[0140] In an exemplary embodiment, the first toe region 110 and the second toe region 111 are configured to potentially move relative to each other, as are the first heel region 114 and the second heel region 115, and the first midfoot region 112 and the second midfoot region 113. In other embodiments, after aligning the regions of each layer in a specific configuration, some or all of the corresponding regions can be attached to each other.

[0141] refer to Figure 19The outer sock layer 104 can be substantially aligned with the inner sock layer 105, such that their respective toe regions 110 and 111, midfoot regions 112 and 113, and heel regions 114 and 115 are substantially aligned. The phrase "substantially aligned" should be interpreted as meaning that the inner sock layer 105 is primarily contained within the outer sock layer 104. However, this does not preclude the possibility that a portion of the inner sock layer 105 extends beyond the boundaries of the outer sock layer 104. While the inner sock layer 105 is largely enclosed by the outer sock layer 104, there may be embodiments where a segment of the inner sock layer 105 protrudes from or is not aligned with the outer sock layer 104, such as through an opening in the outer sock layer 104. The inner sock layer 105 may be partially exposed from the outer sock layer 104 as needed, without deviating from their intended positional relationship.

[0142] Knitting construction and turning. In an exemplary embodiment, the outer sock layer structure 104 and the inner sock layer structure 105 may be knitted as a single tubular knitted tube that does not overlap during the knitting process. Alternatively, the process of manufacturing double-layer socks may include joining the separately tubular or flat-knitted outer sock layer structure 104 and inner sock layer structure 105.

[0143] One or both of the outer sock layer structure 104 and the inner sock layer structure 105 may include, for example Figures 16 to 18 The shown orifice 118 ( Figure 18 (The opening is shown in dashed lines). In an exemplary embodiment, the outer sock layer structure 104 may include an opening 118 at least partially along the location of the first insole portion 116. Once the knitted structure 102 is formed, the opening 118 allows the outer sock layer structure 104 to flip over onto the inner sock layer structure 105 to form a double sock. The opening 118 can be of any size and location on the insole portion 116. It can be at least a partial slit along a portion of the insole 116 or extend along the length of the insole. Depending on the structural inserts placed into the upper or how the upper is lasted or bonded to the sole, the opening may also be wider.

[0144] Once the outer sock layer 104 is flipped over the inner sock layer 105, the outer and inner sock layers 105 interconnect at the top of the seamless ankle collar 142, forming an opening for the foot receiving cavity. Once the double socks are flipped over and the structural supports are inserted, the opening 118 can optionally be closed, for example, by stitching or gluing. The structural supports include a heel counter, heel counter insert, insole, sock lining, last, plate, toe cap, toe cap support, stretch member, strap, instep / eyelet / tongue support, foam, cushioning material, insulating lining, lighting components, electronics, decorative materials, a portion of the sole, or any other component inserted between the layers of the upper. Once the upper is formed, the outer sock layer 104 can be attached to the upper surface of at least a portion of the sock lining, protective layer, or sole, or if the sole has already been inserted into the upper, only the outer sock layer 104 can be closed.

[0145] Manufacturing double-layered socks involves connecting an outer sock layer structure 104 and an inner sock layer structure 105, which are separately tubular or flat-knitted. In alternative processes, the ankle collar 142 forming the shoe opening 48 may require the addition of seams that can be sewn around the edges of the ankle collar to stabilize and define it. The seams may include elastic thread that provides elasticity to the ankle collar to allow for a closer fit to the heel counter / heel cup. In addition to the elasticity provided by the ankle collar, the heel cup can actually provide a looser fit around the foot. To further enhance the fit, the inner foam layer of the heel cup can expand after the foot is inserted to further cup the foot and improve the fit from the foot to the upper.

[0146] As best observed before flipping the outer sock layer structure 104 onto the inner sock layer structure 105, the individual tubular knitted tubes have, as Figure 16 The inner side 122 shown and as Figure 17 The outer side 123 is shown. Once the outer sock layer structure 104 is flipped onto the inner sock layer structure 105, the inner sides 122 of the outer sock layer structure 104 and the inner sides 122 of the inner sock layer structure 105 will engage with each other (i.e., they will face or contact each other). Therefore, the inner side 122 is composed of a first engagement surface 124 present on the outer sock layer structure 104 and a second engagement surface 125 present on the inner sock layer structure 105. Furthermore, once the outer sock layer structure 104 is flipped onto the inner sock layer structure 105, the outer sides 123 corresponding to the outer sock layer structure 104 and the outer sides 123 corresponding to the inner sock layer structure 105 will be opposite to each other (i.e., they will not contact each other and will face away from each other). Figure 17As shown, the outer side 123 is therefore composed of a first opposing surface 126 present on the outer sock layer structure 104 and a second opposing surface 127 present on the inner sock layer structure 105. In some embodiments, the first mating surface 124 and the second mating surface 125 may be freely movable relative to each other in certain areas of the upper, but may also be anchored or fixed to each other in other areas (e.g., using stitching or adhesive), or may be completely attached to each other except for the insertable part located between the two upper layers 104 and 105.

[0147] The stretchability of the upper 16 can also be controlled by the amount of heat-fused yarn or the amount of elastic yarn incorporated into the knitted structure 102. Stretchability can also be designed by the knit type or knit design. Stretchability can include two-way or four-way stretch. The knit pattern and stitch can be varied to create areas with different stretchability, such as different stretchability in the toe areas 110 and 111, midfoot areas 112 and 113, heel areas 114 and 115, and ankle collar 142. Either or both of the outer sock layer structure 104 and the inner sock layer structure 105 can be constructed using a combination of heat-fused yarn and elastic yarn. The degree of elasticity of both the outer sock layer structure 104 and the inner sock layer structure 105 can be determined by the ratio of heat-fused yarn to elastic yarn used to improve the fit and adaptability of the shoe.

[0148] The exemplary embodiment demonstrates the enhanced stretchability of the outer sock layer structure 104 in the first toe region 110 and the first heel region 114. The stretchable regions of the inner sock layer structure 105 may be the second toe region 111, the second heel region 115, and the second midfoot region 113. The ankle collar 142 may also be stretchable to provide elasticity and tension around the ankle.

[0149] In an exemplary embodiment, the thickness of the outer sock layer structure 104 can be from 0.9 mm to 1.9 mm (inclusive); the thickness of the inner sock layer structure 105 can be from 0.9 mm to 1.9 mm (inclusive); and the total thickness of the outer sock layer structure 104 and the inner sock layer structure 105 can be from 1.9 mm to 2.9 mm (inclusive). This arrangement increases the structural strength and lifespan of the upper 16. Simultaneously, the upper 16 also exhibits a cushioning and shock-absorbing effect.

[0150] Knitted eyelets or other openings. Additionally, the knitted pattern may include knitted eyelets or openings. In the case of eyelets, shoelaces can pass through without any additional eyelet components, or eyelet supports can be lining the opening of the eyelet. Eyelets may be integrally embroidered on the first opposing surface 126 present on the outer sock layer structure 104. The portion of the shoelace near the shoe opening 48 may be formed into a bow and securely attached to the outer sock layer structure 104.

[0151] Other one-piece knitted perforations can be located anywhere on the upper. This can include perforations in the one-piece pouch that allow the heel counter to be inserted into such openings and / or make the heel counter visible or exposed. The perforations can have a functional purpose, allowing material from the heel counter to protrude through areas such as pull tabs or the upper portion of the heel counter. Openings can also allow portions of the heel counter (such as the smooth surface of the heel cup) to come into direct contact with the foot. Openings can allow portions of cushioning material or foam layers, or material covering such components (if worn), to come into direct contact with the wearer's foot or sock. Additional elements (such as extensions of the heel cup) can be added to the heel counter through perforations in the one-piece pouch.

[0152] Instep or tongue attachment. A pull tab may be present on a portion of the tongue area 134 and securely attached to the outer sock layer structure 104. The pull tab may also be present on the rear portion of the ankle collar or integrated pouch. The pull tab may be added integrally with the sock or separately. The pull tab may be part of an insert between layers and located at the instep, and the pull tab may extend through or near an opening at or near the ankle collar on the upper.

[0153] Insert. An insert may be positioned at certain locations between the outer sock layer structure 104 and the inner sock layer structure 105. A first mating surface 124 and a second mating surface 125 may be separated by such an insert, including a heel counter 32, a heel cup 52, and / or an insole. Once inserted, the sock can then be attached to the sole.

[0154] Heel counter and pouch. In an exemplary embodiment, the heel counter insert 34 having a heel cup 52 is primarily disposed between a first engagement surface 124 at a first heel region 114 and a second engagement surface 125 at a second heel region 115. The heel counter insert 34 having a heel cup 52 is disposed through an opening 118 in the outer sock layer structure 104. The inner sock layer structure 105 includes a specific knitted pattern that forms a cover layer (here, an integral pouch 140) that securely accommodates the upper portion of the heel counter insert 34 or the outline of the upper and middle portions of the heel counter insert 34. See, for example... Figures 16 to 19 , Figure 24 and Figure 25 .

[0155] The heel counter insert 34 can be bonded to the knitted material of the upper using a thermoplastic material or adhesive. Alternatively, the insert can be sewn onto the knitted material or attached by any other common method known in the art. The heel counter insert 34 can be attached to the outer sock layer structure 104 and / or the inner sock layer structure 105 using a thermoplastic material or adhesive, or it can also be sewn onto the outer sock layer structure 104 and / or the inner sock layer structure 105. 136

[0156] The one-piece pouch 140 has a front cover portion 152 and a rear cover portion 153. The front cover portion 152 can cover the inner surface of the heel counter. The rear cover portion 153 can cover at least a portion of the outer surface of the heel counter. The heel counter insert 34 can include a heel cup 52 and a foam layer 92, and the one-piece pouch 140 can cover these components without seams or additional stitching.

[0157] The one-piece pouch 140 has an inner surface that contacts and surrounds the upper portion of the heel counter insert 34.

[0158] The one-piece sac 140 has an outer surface, which has a forward portion and a rearward portion.

[0159] The heel counter insert 34 and the integrated pouch 140 extend vertically beyond the upper boundary 144 of the ankle collar 142, thus protruding above the highest point of the ankle collar 142.

[0160] Because the one-piece pouch wraps around the rearward surface of the heel cup, the pouch can extend downward below the level of the ankle collar and behind the ankle collar. The pouch can extend to the junction of the pouch and the inner sock layer of the upper, and the inner sock layer extends upward to the top of the ankle collar and wraps around it to meet the outer surface of the sock layer. The inner sock layer can also be the inner surface of the ankle collar. In some cases, the one-piece pouch can extend further down as far as the insole or insole, creating a defined unconnected space between the inner sock layer of the upper (or the inner surface of the ankle collar) and the rearward surface of the one-piece pouch. This unconnected space can provide greater movement between the heel cup and the upper, such as during foot insertion or removal, where the heel cup can move rearward to widen the shoe opening, allowing for greater ease of movement in and out of the shoe.

[0161] The one-piece pouch material can be secured to the heel counter insert (i.e., heel cup) along with additional layers such as foam to prevent the material from hindering easy on and off of the shoe. The wraparound sock-like upper can have stretch properties, allowing the heel counter to temporarily shift backward as the foot slides along the inside of the heel counter. The ankle collar or neckline that wraps around the one-piece pouch provides sufficient tension to prevent the heel cup from shifting too far back, thereby providing a secure fit around the user's heel.

[0162] Ankle neckline. In an exemplary embodiment, the ankle neckline 142 forms a band-like structure that surrounds the ankle and provides a secure fit. The ankle neckline 142 may extend partially or entirely around the shoe opening 48. The ankle neckline 142 has an upper boundary 144 (which is the top edge of the neckline) and a lower boundary 146 (which is the bottom edge). The upper boundary 146 marks the distinction between the outer sock layer structure 104 and the inner sock layer structure 105. However, this distinction does not necessarily indicate a physical separation, as the outer sock layer structure 104 and the inner sock layer structure 105 may be integrally formed. In an exemplary embodiment, the seamless ankle neckline 142 visually distinguishes itself from other parts of the shoe upper. The ankle neckline 142 may incorporate elastic and tension properties, which help to comfortably grip the ankle. The lower boundary 146 may serve as a transition point for the integral ankle neckline or tension band to connect to the body of the sock. The first mating surface 124 and the second mating surface 125 may contact each other at least a portion of the entire circumference of the ankle collar 142, thereby forming at least a double layer that is ring-shaped along the cross-sectional axis, such as Figure 18 As shown. The lower boundary 146 of the ankle collar 142, i.e., the two layers of the ankle collar 142, may extend partially or entirely along its length and be sewn or glued between the layers forming the loop of the ankle collar 142. The loop of the ankle collar 142 may have a hollow gap, or the overlapping layers may be completely knitted together, or the gap may be filled with a material that can provide various functions, including tension, filling, strength, or aesthetics. The construction, fibers, or materials of the ankle collar 142 may differ from other areas of the upper. For example, the tension may be greater or less than in other areas of the upper. Variations in construction may involve high-density fibers or stitching, or the type of stitching used in different areas of the upper, which may increase or decrease tension. Different fibers or materials may differ in elasticity or stretchability.

[0163] The rear cover portion 154 of the one-piece pouch 140 and the ankle collar 142 can be integrally connected, spaced apart but have a single-piece structure, or formed separately.

[0164] The portion of the ankle neckline 142 that extends backward and around the heel counter 32 insert can resemble an ankle strap. The portion of the ankle neckline 142 formed by the opposing surfaces of the inner sock layer contacts the rearward surface of the one-piece pouch.

[0165] The middle and lower portions of the heel cup 52 insert extend vertically below the lower boundary 146 of the ankle neckline 142 and are located between the opposing surfaces of the outer sock layer structure 104 and the inner sock layer structure 105.

[0166] In an exemplary embodiment, the top of the upper boundary 144 of the ankle collar 142 is lower than the top of the heel counter 32 insert and the pouch 140. Therefore, the heel counter 32 insert helps prevent the ankle collar 142 from collapsing under heel pressure, thereby making the process of putting on the shoe easier for the user. Alternatively, the ankle collar may have sufficient tension to prevent the heel cup from shifting excessively backward, and the ankle collar may help return the heel cup to its original position after the foot is inserted. Such tension can contribute to a more secure fit of the heel cup, whereas without an ankle collar, a looser fit around the foot is possible. The foam layer surrounding the user's heel and ankle can further enhance the secure fit by expanding around the foot. The foam layer can even be compressed tightly against the foot by the ankle collar.

[0167] According to this alternative function, incorporating the integrated pouch and ankle collar 142 into the outer sock layer structure 104 and inner sock layer structure 105 facilitates the easy assembly of the upper 16. The outer sock layer structure 104 and ankle collar 142 can also be used to provide external protection for the upper 16. Either or both of the outer sock layer structure 104 and ankle collar can be elastic, allowing the heel cup 52 to move backward during foot insertion into the shoe, thus enabling the ankle collar to function as a tension band or strap. In such a case, the heel cup 52 can return to its original state after the foot is inserted into the shoe. After the foot is inserted, the ankle collar can also reduce the unintentional backward movement of the heel cup while the shoe is being used. The tension provided by the ankle collar can prevent or reduce the possibility of the foot accidentally slipping out of the shoe. This tension can be strong enough that removing the shoe may require holding the shoe in place when removing the foot from the shoe (such as by using the user's hand or the user's other foot / shoe).

[0168] The tension of the ankle collar can be adjustable. The ankle collar can be attached to a fastening device, such as straps, laces, a tensioning line system with a tension dial, or any fastening device known in the art. At least a portion of the fastening device can also be inserted between the layers during upper formation. The fastening device can extend through openings in the outer layer to allow the user to access it to increase tension. In the case of straps, tension can be provided by buckles or Velcro attachments. In the case of laces or lines, they can extend through the instep to tighten the ankle collar and provide support in the instep area. The fastening device can extend co-exist with the ankle collar or be configured to pull the ankle collar tighter.

[0169] Insole. In an exemplary embodiment, the insole 136 may be disposed between a first mating surface 124 at a first midfoot region 112 and a second mating surface 125 at a second midfoot region 113. See, for example... Figures 20 to 24 .

[0170] The insole 136 can be inserted between the mating surfaces 124 and 125 through the opening 118 in the outer sock layer structure 104, and is mainly positioned between the first mating surface 124 at the first insole portion 116 and the second mating surface 125 at the second insole portion 117.

[0171] The insole 136 can be attached to the knitted structure 102, for example, by stitching or gluing, onto one or both of the first mating surface 124 and the second mating surface 125. Once the insole 136 is inserted, the opening 118 along the first insole portion 116 can be closed, for example, by stitching. Once the opening 118 of the outer sock layer structure 104 is closed, the upper 16 can then be attached to the sole 14. The midsole can be attached to the first opposing surface 126 at the first insole portion 116, thereby covering the seam of the opening 118 of the outer sock layer structure 104. Before the insole is inserted into the upper, it can also be attached to other structures, such as sock linings, lasts, or upper-associated components, such as heel cups, heel counter inserts, toe caps, straps, or side supports. In one example, the heel counter insert 34 can be attached to the insole 136, and the combined structure can then be inserted between the first mating surface 124 and the second mating surface 125. Attachment methods may include any methods known in the art, including suturing and / or bonding.

[0172] like Figure 15 and Figures 20 to 24 As shown, an exemplary embodiment of the insole 136 includes a multi-layered construction to enhance comfort and, in some embodiments, to enhance airflow. Specifically, the insole 136 includes three distinct layers.

[0173] The top inner layer 137, which is in direct contact with the second mating surface 125, can be made of a viscoelastic material, such as polyurethane foam. An exemplary foam can be characterized as having a density range of 130-150 kg / m³ and a hardness rating of 9-15 (measured on the Asker F scale). The top inner layer 137 is approximately 3 mm thick.

[0174] According to this embodiment, below the top inner layer 137 is a middle inner layer 138, constructed from an example material such as a thermoplastic elastomer (TPE) base material. This material can be a foam polymer or a material providing additional cushioning. The middle layer can have a different rigidity or elasticity than the top inner layer. In one embodiment, the rigidity can be greater, or the elasticity can be less. The middle inner layer 138 can have any thickness, such as approximately 4 mm.

[0175] According to this embodiment, when viewed from the bottom, the exposed areas 168 of the TPE intermediate inner layer 138 are intentionally exposed along the inner and outer sides of the insole. These exposed areas can be designed with curved or beveled shapes. The exposed areas 168 facilitate the merging of the insole with the upper surface of the midsole, the upper surface of which typically exhibits curved sidewalls along its perimeter. Furthermore, the exposure of the TPE layer in these areas promotes enhanced airflow and reduced moisture within the shoe. In some embodiments, perforations 135 may be located in the beveled areas of the TPE intermediate inner layer 138, thereby enhancing airflow and heat dissipation.

[0176] The bottom inner layer 139 of the insole 136 is composed of a heat-fused sheet material approximately 1 mm thick. This layer is designed to secure the insole to the upper and contact the first mating surface 124. The bottom inner layer 139 may be entirely co-linear with the middle inner layer, or may cover a portion of the middle layer. In one exemplary embodiment, the bottom inner layer 139 may be entirely co-linear with the heel portion and with portions of the midfoot or forefoot area. The exposed area 168 of the middle layer may be located anywhere or in areas that allow for greater breathability of the middle layer. The exposed area 168 may also be created after the layers are combined to create a bevel angle that can be used to allow the insole to better fit within the top surface of the sole, wherein the profile is configured to accommodate the beveled edge of the insole.

[0177] Both the TPE mid-layer insole 138 and / or the heat-fused bottom insole 139 may be constructed with perforations 135 that extend through both the mid-layer and the bottom layer. The perforations in one layer may be partially or completely aligned with, or not aligned with, the other layer. The perforations may be configured to facilitate airflow through the mid-layer and bottom insole. Exposed areas 168 may also enhance airflow. Improved airflow improves breathability and reduces moisture buildup inside the shoe. In other exemplary embodiments, the perforations may be present on the mid-layer but not on the bottom layer, and vice versa.

[0178] Additionally, the insole support pad 166 can be positioned below the heel area of ​​the bottom layer of the insole. The insole support pad 166 can be made of ethylene vinyl acetate (EVA), with options for foam and non-foam EVA configurations. Structurally, the insole support pad 166 is characterized by a thicker composition at the rear, gradually thinning towards the front.

[0179] The insole can be attached to the upper separately or in combination with the heel counter insert by adhesive, stitching, hot melt film or any other means known in the art.

[0180] Support plate. In one embodiment, the support plate may be disposed between mating surfaces 124 and 125 alone or in combination with other components such as the insole. The support plate may also be located on the lower surface of the first mating surface 124 of the insole 136 facing the midfoot region 112, and may partially or completely extend with the insole. The support plate may be the minimum distance between the support plate 138 and the first heel region 114, which is less than the minimum distance between the support plate 138 and the first toe region 110. That is, the support plate 138 may be disposed near the first heel region 114. The support plate 138 may be attached to the lower surface of the insole 136 with an adhesive. The shape of the end of the support plate 138 near the first heel region 114 may be adapted to the shape of the insole 136. The support plate 138 may be constructed of any material that further increases the rigidity or stiffness of the insole, and may be constructed of any material, including but not limited to cardboard, plastic, nylon, and metal.

[0181] The support plate 138 can improve the structural strength of the insole 136. When the upper 16 includes the heel counter 32 insert, the support plate 138 can effectively position the heel counter 32 insert and improve its stability.

[0182] Identification. An identification strip may be provided on the outer surface of the outer sock layer structure 104. The angle α between the identification strip 150 and the vertical direction satisfies: 0° < α < 90°, meaning the identification strip 150 is set at an angle. The identification strip 150 may contain text, patterns, etc. The identification strip may also be located on the outer surface of the heel cup pouch cover directly above the ankle collar 142.

[0183] Clause 1: An upper for a footwear article, comprising: a first knitted layer and a second knitted layer; the first knitted layer and the second knitted layer having corresponding toe areas, midfoot areas, and heel areas; the first knitted layer having a first inner surface and a first outer surface; the second knitted layer having a second inner surface and a second outer surface; the first inner surface and the second inner surface substantially facing each other; the first outer surface and the second outer surface substantially opposite each other; an ankle collar formed at an interconnection between the first knitted layer and the second knitted layer and at least partially surrounding an opening of a foot receiving cavity of the upper; the second knitted layer defining an integral pocket in the heel area; a heel cup in the heel area partially located between the first inner surface and the second inner surface; an upper portion of the heel cup disposed within the integral pocket; the integral pocket defining a forward surface on a front cover portion and a rearward surface on a rear cover portion; and the ankle collar having a portion of the second outer surface contacting the rearward surface.

[0184] Clause 2: The upper of the shoe as described in Clause 1, wherein the upper portion of the heel cup and a portion of the one-piece pouch extend above the ankle collar.

[0185] Clause 3: The upper as described in Clause 1 also includes an insole disposed between the first inner surface and the second inner surface.

[0186] Clause 4: The upper of a shoe as described in Clause 1, wherein the heel cup is a structural element comprising an upper rear portion extending rearward and sloping downward in a direction from the heel toward the toes, the downward sloping having a convex bend; and the convex bend having an upward-facing upper surface and a lower surface facing an opening of the footwear article.

[0187] Clause 5: The upper as described in Clause 4, wherein the heel cup is rigid and will not bend downwards and away from the shoe opening under load.

[0188] Clause 6: The upper as described in Clause 4, wherein the heel cup bends downward and away from the shoe opening under load, and returns to its original position once the load is removed.

[0189] Clause 7: As in Clause 5, the heel cup is temporarily pushed back during foot insertion or removal.

[0190] Clause 8: The upper of the shoe as described in Clause 1, wherein the heel cup is part of a heel counter insert, the heel counter insert including the heel cup and a foam layer, wherein the upper portion of the upper portion of the heel counter insert including the heel cup is located at least within the one-piece pouch.

[0191] Clause 9: The upper of the shoe as described in Clause 6, wherein the foam layer has a protrusion located on the heel cup such that the padding contacts the foot above the heel bone region of the foot.

[0192] Clause 10: The upper of the shoe as described in Clause 9, wherein the foam layer is in a first compressed state during foot insertion and removal, and in a completely uncompressed state after foot removal, and in a completely uncompressed state or a second compressed state after foot insertion, wherein the second compressed state is less than the first compressed state.

[0193] Clause 11: The upper as described in Clause 3, wherein the insole is multi-layered, with the first layer having viscoelastic properties and the second layer having perforations.

[0194] Clause 12: The upper as described in Clause 8, wherein the heel counter insert has a retaining flap that can be connected perpendicularly to the heel cup and attached to the insole of the upper.

[0195] Clause 13: The upper of the shoe as described in Clause 12, wherein the insole may be a portion of the first or second knitted layer, an insole, or a sock lining.

Claims

1. An upper for footwear, characterized in that, include: First knit layer and second knit layer; The first knitted layer and the second knitted layer have corresponding toe areas, midfoot areas and heel areas; The first knitted layer has a first inner surface and a first outer surface; The second knitted layer has a second inner surface and a second outer surface; The first inner surface and the second inner surface face each other; The first outer surface and the second outer surface are opposite to each other; An ankle collar, which is formed at the interconnection between the first knit layer and the second knit layer and at least partially surrounds the opening of the foot receiving cavity of the upper; Heel cup, the heel cup being located in the heel region; The ankle collar is elastic and provides tension acting on the heel cup, wherein the elasticity allows the heel cup to move backward during foot insertion, and the tension facilitates the heel cup returning to its original state after insertion; The upper part of the heel cup is housed within an integrated pouch. The integrated capsule defines a forward surface on the front covering portion and a rearward surface on the rear covering portion; as well as The ankle collar has a portion of the second outer surface that contacts the rearward surface.

2. The shoe upper as described in claim 1, characterized in that, The second knitted layer defines the one-piece pouch in the heel region, and the upper portion of the heel cup and a portion of the one-piece pouch extend above the ankle neckline.

3. The shoe upper as described in claim 1, characterized in that, It also includes an inner bottom disposed between the first inner surface and the second inner surface.

4. The shoe upper as described in claim 1, characterized in that, The heel cup is a structural element that includes an upper rear portion that extends rearward and slopes downward in a direction from the heel toward the toes, the downward slope having a convex curve; and the convex curve having an upward-facing upper surface and a lower surface facing the shoe opening of the footwear.

5. The shoe upper as described in claim 4, characterized in that, The heel cup is rigid.

6. The shoe upper as described in claim 4, characterized in that, The heel cup bends downward and away from the shoe opening under load, and returns to its original position once the load is removed.

7. The shoe upper as described in claim 1, characterized in that, The heel cup is part of the heel counter insert, which includes the heel cup and a foam layer, wherein the upper portion of the heel counter insert, including the upper portion of the heel cup, is located at least within the integral pouch.

8. The shoe upper as described in claim 7, characterized in that, The foam layer has a protruding portion and a padded area, the protruding portion being located on the heel cup such that the padded area contacts the foot above the heel bone region.

9. The shoe upper as described in claim 8, characterized in that, The foam layer is in a first compressed state during foot insertion and removal, and in a completely uncompressed state after foot removal, and in a completely uncompressed state or a second compressed state after foot insertion, wherein the second compressed state is less than the first compressed state.

10. The shoe upper as described in claim 3, characterized in that, The insole is multi-layered, with the first layer having viscoelastic properties and the second layer having perforations.

11. The shoe upper as described in claim 7, characterized in that, The heel counter insert has a fixing wing that can be connected perpendicularly to the heel cup and attached to the insole of the shoe upper.

12. The shoe upper as described in claim 11, characterized in that, The insole may be a portion of the first or second knitted layer, an insole, or a sock lining.

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