CN116157038A - Footwear sole structure and upper with embedded plates - Google Patents

Footwear sole structure and upper with embedded plates Download PDF

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Publication number
CN116157038A
CN116157038A CN202180057811.3A CN202180057811A CN116157038A CN 116157038 A CN116157038 A CN 116157038A CN 202180057811 A CN202180057811 A CN 202180057811A CN 116157038 A CN116157038 A CN 116157038A
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CN
China
Prior art keywords
midsole
plate portion
sole structure
outsole
disposed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202180057811.3A
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Chinese (zh)
Inventor
亚历克斯·巴迪尼
迈克尔·沃伦斯
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Nike Innovate CV USA
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Nike Innovate CV USA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nike Innovate CV USA filed Critical Nike Innovate CV USA
Publication of CN116157038A publication Critical patent/CN116157038A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/12—Soles with several layers of different materials
    • A43B13/125—Soles with several layers of different materials characterised by the midsole or middle layer
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/026—Composites, e.g. carbon fibre or aramid fibre; the sole, one or more sole layers or sole part being made of a composite
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/18—Resilient soles
    • A43B13/181—Resiliency achieved by the structure of the sole
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/18—Resilient soles
    • A43B13/181—Resiliency achieved by the structure of the sole
    • A43B13/185—Elasticated plates sandwiched between two interlocking components, e.g. thrustors
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/38—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process
    • A43B13/41—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process combined with heel stiffener, toe stiffener, or shank stiffener
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/06—Running shoes; Track shoes
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D25/00—Devices for gluing shoe parts
    • A43D25/06—Devices for gluing soles on shoe bottoms

Abstract

A sole structure includes an outsole that defines an interior outsole surface and an exterior outsole surface opposite an interior outer surface. The inner outsole surface is spaced apart from the outer outsole surface along a first direction. The sole structure also includes a midsole disposed on the outsole and a footwear plate directly coupled to the midsole. The footwear panel includes a composite material and includes a first panel portion, a second panel portion connected to the first panel portion, and a third panel portion connected to the second panel portion. The second plate portion is connected between the first plate portion and the third plate portion. The second plate portion is inclined at an angle relative to the first plate portion and the third plate portion such that the first plate portion is spaced apart from the third plate portion along the first direction.

Description

Footwear sole structure and upper with embedded plates
Technical Field
The present application claims priority and benefit from U.S. provisional patent application No. 63/080,283, filed on 9/18/2020.
Technical Field
The present teachings relate generally to sole structures for articles of footwear and, more particularly, to a sole structure of footwear having an embedded plate (embedded plate).
Background
This section provides background information related to the present disclosure, which is not necessarily prior art.
An article of footwear includes an upper and a sole structure. The upper may be formed from any suitable material to receive, secure, and support the foot on the sole structure. The upper may cooperate with laces, straps, or other fasteners to adjust the fit of the upper around the foot. A bottom portion of the upper proximate a bottom surface of the foot is attached to the sole structure.
The sole structure includes a layered arrangement (layered arrangement) extending between the ground surface and the upper. One layer of the sole structure includes an outsole that provides both wear-resistance and traction with the ground surface. The outsole may be formed of rubber or other materials that impart durability and wear resistance and enhance traction with the ground surface. The other layer of the sole structure includes a midsole disposed between the outsole and the upper. The midsole provides cushioning for the foot and is at least partially formed from a polymer foam material that resiliently compresses under an applied load to cushion the foot by attenuating ground reaction forces. The midsole may define a bottom surface on a side opposite the outsole and a foot bed (foot bed) on an opposite side that may be contoured to conform to the contour of the bottom surface of the foot. The sole structure may also include a comfort-enhancing insole or sockliner that is positioned within the void near a bottom portion of the upper.
It is known that the plantar-toe (MTP) joint of a foot absorbs energy when it bends by dorsiflexion during running movements. Since the foot does not move by plantarflexion until the foot steps off the ground surface, the MTP joint returns little of its absorbed energy to the running motion and is thus a source of energy expenditure during the running motion. Embedding a flat and rigid plate with a longitudinal stiffness (stiffness) within the sole structure increases the overall stiffness of the sole structure.
Brief Description of Drawings
FIG. 1 is a schematic illustration of a lateral side view of an article of footwear according to an embodiment of the disclosure.
Fig. 2 is a schematic illustration of a lateral side view of an article of footwear according to another aspect of the disclosure.
Fig. 3 is a schematic illustration of a lateral side view of an article of footwear according to another aspect of the disclosure, wherein the midsole is configured as an embedded midsole (drop-in mid) and is disposed only at a heel region of the sole structure.
Fig. 4 is a schematic illustration of a lateral side view of an article of footwear in accordance with another aspect of the disclosure, wherein the midsole is configured as an embedded midsole and extends through a heel region, a midfoot region, and a forefoot region of the sole structure.
Fig. 5 is a schematic illustration of a lateral side view of an article of footwear according to another aspect of the disclosure, wherein the midsole is configured as an embedded midsole and includes two discrete midsole portions that are spaced apart from one another.
Fig. 6 is a schematic illustration of a lateral side view of an article of footwear in accordance with another aspect of the disclosure, wherein the midsole is configured as an embedded midsole and is disposed only at a forefoot region of the sole structure.
FIG. 7 is a flow chart of a method for manufacturing an article of footwear.
Description of the invention
The present disclosure describes an article of footwear that may be used for football (or soccer), running, basketball, and/or other sports.
In one aspect of the present disclosure, a sole structure includes an outsole defining an inner outsole surface and an outer outsole surface opposite an inner outer surface. The inner outsole surface is spaced apart from the outer outsole surface along a first direction. The sole structure also includes a midsole disposed on the outsole and a footwear plate directly coupled to the midsole. The footwear panel includes a composite material. The footwear panel includes a first panel portion, a second panel portion connected to the first panel portion, and a third panel portion connected to the second panel portion. The second plate portion is connected between the first plate portion and the third plate portion. The second plate portion is inclined at an angle relative to the first plate portion and the third plate portion such that the first plate portion is spaced apart from the third plate portion along the first direction to enhance stability of the sole structure while minimizing energy loss when the sole structure contacts the ground surface.
The midsole comprises midsole material. The composite material has a first stiffness. The midsole material has a second stiffness and the first stiffness may be greater than the second stiffness.
The midsole defines an inner midsole surface and an outer midsole surface opposite the inner midsole surface. The inner midsole surface faces the upper. The outer midsole surface faces away from the upper. The midsole defines a midsole through hole (thru-hole) that extends from an inner midsole surface of the midsole to an outer midsole surface of the midsole. The second plate portion is disposed within the midsole through-hole of the midsole. The first plate portion is disposed in a forefoot region of the sole structure. The third plate portion is disposed in a heel region of the sole structure. The second plate portion is disposed in a midfoot region of the sole structure.
The third plate portion is disposed on top of the midsole. The second plate portion is disposed between the inner midsole surface and the outer midsole surface of the midsole. The midsole through-hole is inclined at an angle relative to the inner midsole surface and the outer midsole surface.
The midsole defines a midsole longitudinal recess in communication with the midsole through-hole, the midsole longitudinal recess being adjacent the outsole. A midsole longitudinal recess is disposed in a forefoot region of the sole structure. The first plate portion is at least partially disposed in the midsole longitudinal recess to maximize energy return during toe off. The first plate portion is spaced apart from the second plate portion in a second direction. The second direction is perpendicular to the first direction. The outsole is elongated in a second direction.
The outsole defines an inner outsole surface and an outer outsole surface opposite the inner outsole surface. The inner outsole surface faces the upper. The outer outsole surface faces away from the upper. The third plate portion is in direct contact with an inner outsole surface of the outsole. The midsole longitudinal recess is elongated in a second direction. The second direction is perpendicular to the first direction.
The midsole defines an inner midsole surface and an outer midsole surface opposite the inner midsole surface. The inner midsole surface faces the upper. The outer midsole surface faces away from the upper. The midsole defines a midsole opening extending from the inner midsole surface into the midsole. The midsole opening does not extend through the entire thickness of the midsole. The second plate portion is disposed within the midsole opening of the midsole and the third plate portion is disposed on top of the inner midsole surface at a heel region of the sole structure.
The first plate portion is disposed at a forefoot region of the sole structure, the first plate portion is disposed inside the midsole, and the first plate portion is closer to an inner midsole surface of the midsole than to an outer midsole surface of the midsole.
The midsole is configured as an embedded midsole that is disposed entirely within the interior void of the upper, the third plate portion is disposed within the midsole, and the first plate portion is disposed within the outsole.
The midsole is disposed only at the heel region of the sole structure. The midsole extends through the heel region, the midfoot region, and the forefoot region. The midsole includes a first midsole portion and a second midsole portion that are spaced apart from one another along the longitudinal axis to define a gap therebetween, and the gap receives a second plate portion of the footwear plate.
In one aspect of the disclosure, an article of footwear includes an upper defining an interior void and an ankle opening in communication with the interior void. The article of footwear also includes a sole structure coupled to the upper. The sole structure includes a forefoot region, a midfoot region, and a heel region, with the midfoot region disposed between the forefoot region and the heel region. The sole structure includes an outsole that defines an interior outsole surface and an exterior outsole surface opposite the interior outer surface. The inner outsole surface is spaced apart from the outer outsole surface along a first direction. The sole structure also includes a midsole disposed on the outsole and the footwear plate is coupled to the midsole. The footwear panel includes a composite material and includes a first panel portion, a second panel portion directly connected to the first panel portion, and a third panel portion directly connected to the second panel portion. The second plate portion is connected between the first plate portion and the third plate portion. The second plate portion is inclined at an angle relative to the first plate portion and the third plate portion such that the first plate portion is spaced apart from the third plate portion along the first direction to enhance stability of the sole structure while minimizing energy loss of the sole structure when the article of footwear contacts the ground surface.
The midsole defines an inner midsole surface and an outer midsole surface opposite the inner midsole surface. The inner midsole surface faces the upper. The outer midsole surface faces away from the upper. The midsole defines a midsole through-hole extending from an inner midsole surface of the midsole to an outer midsole surface of the midsole. The second plate portion is disposed within the midsole through-hole of the midsole. The first plate portion is disposed in a forefoot region of the sole structure. The third plate portion is disposed in a heel region of the sole structure. The second plate portion is disposed in a midfoot region of the sole structure.
A third plate portion is disposed on top of the midsole, and a second plate portion is disposed between an inner midsole surface of the midsole and an outer midsole surface of the midsole. The midsole through-hole is inclined at an angle relative to the inner midsole surface and the outer midsole surface.
The midsole defines a midsole longitudinal recess in communication with the midsole through-hole. The midsole longitudinal recess is disposed in a forefoot region of the sole structure adjacent the outsole. The first plate portion is at least partially disposed in the midsole longitudinal recess to maximize energy return during toe-off.
The outsole defines an inner outsole surface and an outer outsole surface opposite the inner outsole surface. The inner outsole surface faces the upper. The outer outsole surface faces away from the upper. The third plate portion is in direct contact with an inner outsole surface of the outsole. The midsole longitudinal recess is elongated in a second direction. The second direction is perpendicular to the first direction.
The midsole defines an inner midsole surface and an outer midsole surface opposite the inner midsole surface, the inner midsole surface facing the upper. The outer midsole surface faces away from the upper. The midsole defines a midsole opening extending from the inner midsole surface into the midsole, the midsole opening does not extend through an entire thickness of the midsole, and the second plate portion is disposed within the midsole opening of the midsole and the third plate portion is disposed on top of the inner midsole surface at a heel region of the sole structure.
The first plate portion is disposed at a forefoot region of the sole structure, the first plate portion is disposed inside the midsole, and the first plate portion is closer to an inner midsole surface of the midsole than to an outer midsole surface of the midsole.
The midsole is configured as an embedded midsole that is disposed entirely within the interior void of the upper. The third plate portion is disposed within the midsole and the first plate portion is disposed within the outsole. The midsole may be disposed only at the heel region of the sole structure. The midsole extends through the heel region, the midfoot region, and the forefoot region. The midsole includes a first midsole portion and a second midsole portion that are spaced apart from one another along a longitudinal axis to define a gap therebetween. The gap receives a second plate portion of the footwear plate.
The present disclosure also describes a method of manufacturing an article of footwear. The method includes inserting a footwear plate through an opening of the midsole to directly couple the footwear plate to the midsole. The opening of the midsole is a through-hole that extends along the entire thickness of the midsole. Alternatively, the opening of the midsole extends along a portion of the thickness of the midsole. The footwear panel includes a composite material. The footwear panel includes a first panel portion, a second panel portion connected to the first panel portion, and a third panel portion connected to the second panel portion. The second plate portion is connected between the first plate portion and the third plate portion. The second plate portion is inclined at an angle relative to the first plate portion and the third plate portion such that the first plate portion is spaced apart from the third plate portion along the first direction. The method also includes attaching the midsole to the outsole. The outsole is elongated along a longitudinal axis. The first direction is perpendicular to the longitudinal axis. The sole structure includes a midsole and an outsole. The sole structure has a forefoot region, a heel region, and a midfoot region between the forefoot region and the heel region. The opening of the midsole is disposed at a midfoot region of the sole structure. The method also includes attaching the upper to the sole structure.
The above features and advantages and other features and advantages of the present teachings will be readily apparent from the following detailed description of the modes for carrying out the present teachings when taken in connection with the accompanying drawings.
Example configurations will now be described more fully with reference to the accompanying drawings. Example configurations are provided so that this disclosure will be thorough, and will fully convey the scope of the disclosure to those skilled in the art. Specific details are set forth, such as examples of specific components, devices, and methods, in order to provide a thorough understanding of the configurations of the present disclosure. It will be apparent to one of ordinary skill in the art that the example configuration may be embodied in many different forms without the use of specific details, and that the specific details and example configuration should not be construed to limit the scope of the disclosure.
The terminology used herein is for the purpose of describing particular exemplary configurations only and is not intended to be limiting. As used herein, the singular articles "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," and "including" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. Unless specifically identified as an order of execution, the method steps, processes, and operations described herein should not be construed as necessarily requiring their execution in the particular order discussed or illustrated. Additional or alternative steps may be employed.
When an element or layer is referred to as being "on," "engaged to," "connected to," "attached to" or "coupled to" another element or layer, it can be directly on, engaged, connected, attached or coupled to the other element or layer or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly engaged to," "directly connected to," "directly attached to," or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a similar manner (e.g., "between" and "pair" directly between "and" pair "," adjacent "and" directly adjacent ", etc.). As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections. These elements, components, regions, layers, and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, first component, first region, first layer, or first section discussed below could be termed a second element, second component, second region, second layer, or second section without departing from the teachings of the example configurations.
Referring to fig. 1, article of footwear 10 includes an upper 100 and a sole structure 200 coupled to upper 100. Article of footwear 10 (and components thereof, such as upper 100 and sole structure 200) may be divided into one or more portions. These portions may include forefoot region 12, midfoot region 14, and heel region 16. During use of footwear 10, forefoot region 12 may correspond with the toes and the joints connecting the metatarsals with the phalanges of the foot. Forefoot region 12 may correspond with the Metatarsophalangeal (MTP) joints of the foot. Midfoot region 14 may correspond with an arch region of the foot. During use of article of footwear 10, heel region 16 may correspond with a rear portion of the foot that includes the calcaneus bone. Midfoot region 14 is thus located between forefoot region 12 and heel region 16. Footwear 10 may include lateral and medial sides (medial sides), respectively, that correspond with opposite sides of footwear 10 and extend through portions 12, 14, and 16.
Upper 100 includes an interior surface defining interior void 102, and interior void 102 receives and secures a foot for support on sole structure 200 during use of article of footwear 10. Ankle opening 104 in heel region 16 may provide access to interior void 102. For example, ankle opening 104 may receive a foot to secure the foot within void 102 and facilitate entry of the foot into interior void 102 and removal of the foot from interior void 102. In some examples, one or more fasteners 106 (such as laces) extend along upper 100 to adjust the fit of interior void 102 around the foot while accommodating the entry and removal of the foot from the interior void. Upper 100 may include apertures 106 (such as eyelets) and/or other engagement features (such as fabric or mesh loops (fabric or mesh loops)) that receive fasteners 107. The fasteners 107 may include laces, straps, ropes, shackles, or any other suitable type of fastener 107. Upper 100 may also include a heel cup (heel cup) at heel region 16 to support the heel of a footwear user.
Upper 100 may include a tongue portion 110 that extends between interior void 102 and aperture 106. Upper 100 may be formed from one or more materials (i.e., upper materials) that are stitched or adhesively bonded together to form interior void 102. Suitable materials for the upper may include, but are not limited to, textiles, fabrics, foam, leather, and synthetic leather. These materials may be selected and positioned to impart durability, breathability, abrasion resistance, flexibility, and comfort properties.
In some embodiments, sole structure 200 may include an outsole 204 configured to contact the ground. Sole structure 200 is oriented (e.g., elongated) along a longitudinal axis L that extends lengthwise between a front end 13 of forefoot region 12 and a rear end 15 of heel region 16. Outsole 204 may be a one-piece structure to enhance its structural integrity, or outsole 204 may be a plurality of discrete outsole members to enhance traction at specific discrete locations of sole structure 200.
Outsole 204 generally provides both wear-resistance and traction with the ground during use of article of footwear 10, and includes a main outsole body 210. The main outsole body 210 includes a lower surface/ground-engaging surface 212 and an opposite upper surface/inner surface 214. Outsole 204 also includes one or more traction elements 215, such as cleats (spikes), cleats (cleaning), and/or tread (tread), each configured to enhance traction of article of footwear 10 when outsole 204 contacts the ground. Outsole 204 may be formed of one or more materials that impart durability and wear resistance, as well as enhance traction with the ground surface. For example, outsole 204 may be formed from a polymeric material that includes at least one of rubber, polyurethane, ionomer, and/or engineering plastic. For example, at least a portion of outsole 204 may include rubber.
In some examples, one or more traction elements 215 (e.g., cleats, tread, and/or cleats) extend directly from main outsole body 210 in a direction away from upper 100 to provide traction with a ground surface, such as turf, and enhance the structural integrity of outsole 204. For example, in some embodiments, each traction element 215 may be attached to the main outsole body 210 of the outsole 204 and extend in a vertical direction V that is perpendicular, or at least substantially perpendicular, to the longitudinal axis L of the sole structure 200. The longitudinal axis L is parallel to the longitudinal direction LG. The longitudinal direction LG is perpendicular to the vertical direction V. The vertical direction V may be referred to as a first direction, and the longitudinal direction LG may be referred to as a second direction. In the example shown, traction elements 215 extend through heel region 16, midfoot region 14, and forefoot region 12 of sole structure 200 to provide traction along the entire sole structure 200. However, it is contemplated that traction elements 215 may be disposed at spaced apart locations along outsole 204 to provide traction at high wear areas of sole structure 200.
Sole structure 200 may include a midsole 206 for providing cushioning to a footwear user. To this end, midsole 206 may be made of a polymer material, such as rubber or foam. As a non-limiting example, midsole 206 may be made entirely or partially of ethylene-vinyl acetate (EVA) foam to enhance cushioning of sole structure 200. Midsole 206 may extend continuously along forefoot region 12, midfoot region 14, and heel region 16 to provide cushioning along the entire foot of the footwear wearer. Midsole 206 is disposed on outsole 204 and includes a midsole body 208, midsole body 208 having an inner midsole surface 209 and an outer midsole surface 211 opposite inner midsole surface 209. It is contemplated that midsole 206 may be secured to outsole 204 and exposed to the exterior of sole structure 200. As non-limiting examples, adhesives, stitching, and/or thermal bonding may be used to secure midsole 206 to outsole 204.
Sole structure 200 may also include a strobel panel 220 disposed on midsole 206. The strobel panel 220 may include a bottom/ground-facing surface 222 and an opposite upper/footbed surface 224. Strobel panel 220 may be secured to upper 100, at least in part, through the use of stitching and/or adhesive that attaches strobel panel 220 to upper 100. In some embodiments, at least a portion of upper 100 (e.g., a fabric in a continuous relationship with a sidewall of upper 100) may extend around strobel panel 220 such that the at least a portion of upper 100 is located between strobel panel 220 and outsole 204.
Sole structure 200 may also include a footwear plate 300 directly connected to midsole 206 to provide energy return properties to sole structure 200. By directly connecting footwear plate 300 to midsole 206, energy may be easily transferred from footwear plate 300 to midsole 206. For example, footwear plate 300 may directly contact midsole 206. Specifically, at least a portion of footwear plate 300 may be disposed between midsole 206 and strobel panel 220. Footwear panel 300 may be partially or entirely made of a composite material (such as a carbon fiber composite material) to enhance the stiffness of article of footwear 10. For this reason, footwear plate 300 may be referred to as a composite plate. As used herein, the term "composite" means a material made of two or more constituent materials having significantly different physical or chemical properties that, when combined, produce a material having characteristics different from the individual components that remain separate and independent in the finished structure, thereby distinguishing the composite from mixtures and solid solutions. Footwear plate 300 may be made, in whole or in part, from a sheet material (such as a carbon fiber reinforced polymer) that is stiffer than the upper material forming upper 100, the midsole material forming midsole 206, and the outsole material forming outsole 204 to enhance the stability of sole structure 200. In other words, the stiffness of the plate material is greater than the stiffness of the upper material of upper 100, the stiffness of the midsole material forming midsole 206, and the stiffness of the outsole material forming outsole 204 to enhance the stability of sole structure 200 while providing energy return properties to sole structure 200. Footwear plate 300 is part of sole structure 200 to reduce energy loss at the MTP joint during running activities while enhancing rolling of the foot when footwear 10 is rolled for engagement with a ground surface. Footwear plate 300 may define a length that extends through at least a portion of the length of sole structure 200. In some examples, the length of plate 300 extends through forefoot portion 12, midfoot portion 14, and heel portion 16 of sole structure 200 to enhance the structural integrity of sole structure 200. Footwear plate 300 is oriented along a longitudinal axis L that extends lengthwise between a front end 13 of forefoot region 12 and a rear end 15 of heel region 16. In other examples, the length of plate 300 extends through forefoot region 12 and midfoot region 14 and is not present in heel region 16. Footwear plate 300 may be used as an insole (inlersole) and a sole plate (passis). Footwear plate 300 may have a thickness extending along vertical direction V and a width extending between a lateral side and a medial side of sole structure 200.
Footwear plate 300 may include a forefoot or first plate portion 302, a midfoot or second plate portion 304 directly connected to first plate portion 302, and a heel or third plate portion 306 directly connected to second plate portion 304. First plate portion 302 may be disposed entirely within forefoot region 12 of sole structure 200. Second plate portion 304 may be disposed entirely within midfoot region 14 of sole structure 200. Third plate portion 306 may be disposed entirely within heel region 16 of sole structure 200. Third plate portion 306 is disposed entirely within interior void 102 at heel region 12 of sole structure 200 to attenuate impact with the foot of a wearer of the footwear during a heel strike. First plate portion 302 and second plate portion 304 may be exposed such that footwear plate 300 is at least partially visible. The second plate portion 304 may be inclined at an angle relative to the first plate portion 302 and the third plate portion 304. Accordingly, first plate portion 302 is spaced apart from third plate portion 306 along vertical direction V (i.e., first direction) to enhance stability of sole structure 200 while minimizing energy loss when the article of footwear contacts ground surface GS.
Midsole 206 defines a through-hole 216 (such as a slit), with through-hole 216 disposed entirely within midfoot region 14 to receive second plate portion 304 of footwear plate 300. Accordingly, the through hole 216 extends from the inner midsole surface 209 of the midsole body 208 to the outer midsole surface 211 of the midsole body 208. The second plate portion 304 may be disposed entirely within the through-hole 216 of the midsole 206. To receive the second plate portion 304, the through hole 216 may be inclined at an angle relative to the inner midsole surface 209 and the outer midsole surface 211. Third plate portion 306 is disposed on top of midsole 206 at heel region 16 to minimize energy loss during heel strike. The second plate portion 304 is disposed between the inner midsole surface 209 and the outer midsole surface 211.
Midsole 206 defines a midsole longitudinal recess 218 that communicates with midsole through-hole 216. Midsole longitudinal recess 218 is adjacent to outsole 204 and is elongated along longitudinal direction LG (i.e., the second direction). Midsole longitudinal recess 218 may be provided only at forefoot region 12 of sole structure 200 to maximize energy return during toe-off. The first plate portion 302 is at least partially disposed in the midsole longitudinal recess 218 to maximize energy return during toe-off. Outsole 204 has an inner outsole surface 226 that faces upper 100 and an outer outsole surface 228 that faces away from upper 100. First plate portion 302 may be in direct contact with inner outsole surface 226 of outsole 204 to maximize energy return during toe-off.
Fig. 2 illustrates an article of footwear 10, the article of footwear 10 being substantially identical to the article of footwear 10 described above with respect to fig. 1, except for the features described below. Instead of through-holes 216, midsole 206 defines a midsole opening 207 that extends from inner midsole surface 209 toward (but not through) outer midsole opening 211. In other words, midsole opening 207 does not extend through the entire thickness of midsole 206. The second plate portion 304 is disposed within the midsole opening 207. Third plate portion 306 is disposed on top of inner midsole surface 209 to absorb energy during a heel strike. As discussed above, first plate portion 302 is disposed at forefoot region 12 of sole structure 200. The first plate portion 302 may be disposed entirely within the midsole 206 and may be closer to the inner midsole surface 209 of the midsole 206 than to the outer midsole surface 211 of the midsole 206 to absorb energy during toe-off.
Fig. 3 illustrates an article of footwear 10, the article of footwear 10 being substantially identical to the article of footwear 10 described above with respect to fig. 1, except for the features described below. Midsole 206 is configured as an embedded midsole. Accordingly, midsole 206 is disposed entirely within interior cavity 102. In addition, midsole 206 is disposed only at heel region 16 of sole structure 200. Third plate portion 306 may be disposed entirely within midsole 206 and first plate portion 302 may be disposed entirely within outsole 204. The configuration of sole structure 200 as described above facilitates energy absorption at heel region 16 during a heel strike and maximizes energy return during toe-off while minimizing the number of components of sole structure 200.
Fig. 4 illustrates an article of footwear 10, the article of footwear 10 being substantially identical to the article of footwear 10 described above with respect to fig. 3, except for the features described below. Midsole 206 is configured as an embedded midsole. Accordingly, midsole 206 is disposed entirely within interior cavity 102. In addition, midsole 206 extends continuously through heel region 16, midfoot region 14, and then through forefoot region 12 of sole structure 200. Third plate portion 306 may be disposed entirely within midsole 206 and first plate portion 302 may be disposed entirely within outsole 204. The configuration of sole structure 200 as described above facilitates energy absorption at heel region 16 during a heel strike and maximizes energy return at forefoot region 12 during toe-off while providing cushioning over the entire length of sole structure 200.
Fig. 5 illustrates an article of footwear 10, the article of footwear 10 being substantially identical to the article of footwear 10 described above with respect to fig. 3, except for the features described below. Midsole 206 is configured as an embedded midsole. Accordingly, midsole 206 is disposed entirely within interior cavity 102. However, midsole 206 includes two separate portions (i.e., a first midsole portion 206a and a second midsole portion 206 b). The first and second midsole portions 206a, 206b are spaced apart from one another along the longitudinal axis L to define a gap G between the first and second midsole portions 206a, 206 b. Gap G is located at midfoot region 14 of sole structure 200 to receive second plate portion 304. First midsole portion 206a extends along the entire heel region 16 and second midsole portion 206b extends along the entire forefoot region 12. Third plate portion 306 may be disposed entirely within midsole 206 and first plate portion 302 may be disposed entirely within outsole 204. The configuration of sole structure 200 as described above facilitates energy absorption at heel region 16 during a heel strike and maximizes energy return at forefoot region 12 during toe-off while providing cushioning at heel region 16 and forefoot region 12 of sole structure 200.
Fig. 6 illustrates an article of footwear 10, the article of footwear 10 being substantially identical to the article of footwear 10 described above with respect to fig. 3, except for the features described below. Midsole 206 is configured as an embedded midsole. Accordingly, midsole 206 is disposed entirely within interior cavity 102. In addition, midsole 206 is disposed only at forefoot region 12 of sole structure 200. First plate portion 302 may be disposed entirely within midsole 206 and third plate portion 306 may be disposed entirely within outsole 204. The configuration of sole structure 200 as described above facilitates energy absorption at forefoot region 12 during toe-off and maximizes energy return during heel strike while minimizing the number of components of sole structure 200.
Fig. 7 illustrates a flow chart of a method 400 for manufacturing article of footwear 10. The method 400 begins at block 402. At block 402, footwear plate 300 is inserted through an opening of midsole 206 (e.g., through-hole 216 or midsole opening 207). The opening may extend through a portion or the entire thickness of midsole 206. The opening is disposed at midfoot region 14 of midsole 206. It is contemplated that upper 100 may be wrapped around footwear form 300. After block 402, the method 400 continues to block 404. At block 404, midsole 206 is attached to outsole 204. As discussed above, outsole 204 is elongated along longitudinal axis LG or second direction LG. To this end, midsole 206 may be stitched, glued, and/or thermally bonded to outsole 204. Alternatively, midsole 206 may be an embedded midsole. In this case, midsole 206 is simply placed on top of outsole 204 (but is not secured to outsole 204). At block 404, a strobel panel 204 may be disposed on top of the midsole 206. The method 400 then continues to block 406. At block 406, upper 100 is coupled to sole structure 200. To this end, upper 100 may be stitched, glued, and/or thermally bonded to sole structure 200.
To assist and clarify the description of various embodiments, various terms are defined herein. The following definitions apply throughout this specification (including the claims) unless otherwise indicated. Furthermore, all references mentioned are incorporated herein in their entirety.
"article of footwear," "article of footwear," and "footwear" may be considered both machine and article of manufacture. The assembled ready-to-wear article of footwear (e.g., shoe, sandal, boot, etc.) and discrete components of the article of footwear (e.g., midsole, outsole, upper component, etc.) are considered to be, and may alternatively be referred to as, an "article of footwear" or "footwear" in the singular or plural before final assembly into the ready-to-wear article of footwear.
"a", "an", "the", "at least one" and "one or more" are used interchangeably to indicate at least one of the items is present. A plurality of such items may be present unless the context clearly indicates otherwise. Unless the context clearly or clearly indicates otherwise, all numerical values of parameters (e.g., amounts or conditions) in this specification (including the appended claims) should be understood to be modified in all instances by the term "about" whether or not "about" actually occurs before the numerical value. "about" indicates that the recited value allows some slight inaccuracy (some approximation of the accuracy of the value; approximately or moderately close to the value; almost). If the imprecision provided by "about" is not otherwise understood in the art in this general sense, then "about" as used herein at least indicates a variation that may be caused by the general methods of measuring and using these parameters. As used in the specification and the appended claims, a value is considered "approximate" to be equal to a stated value if, unless otherwise stated, it is not greater than 5% of the stated value nor less than 5% of the stated value. In addition, disclosure of a range should be understood to specifically disclose all values and further divided ranges within the range.
The terms "comprises," "comprising," and "includes" are inclusive and therefore specify the presence of stated features, steps, operations, elements, or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, or components. The order of steps, processes, and operations may be altered where possible and additional or alternative steps may be employed. As used in this specification, the term "or" includes any and all combinations of the associated listed items. The term "any" is understood to include any possible combination of the referenced items, including "any one" of the referenced items. The term "any" is to be understood as including any possible combination of the referenced claims of the appended claims, including "any one of the referenced claims.
For consistency and convenience, directional adjectives may be employed throughout this detailed description corresponding to the illustrated embodiments. Those of ordinary skill in the art will recognize that terms such as "above," "below," "upward," "downward," "top," "bottom," etc., are used descriptively with respect to the figures, and do not represent limitations on the scope of the invention, as defined by the claims.
The term "longitudinal" refers to a direction extending along the length of a component. For example, a longitudinal direction of the article of footwear extends between a forefoot region and a heel region of the article of footwear. The terms forward or forward are used to refer to the general direction from the heel region toward the forefoot region, and the terms rearward or rearward are used to refer to the opposite direction, i.e., the direction from the forefoot region toward the heel region. In some cases, a component may be identified with a longitudinal axis and a forward longitudinal direction and a rearward longitudinal direction along the axis. The longitudinal direction or longitudinal axis may also be referred to as a front-to-back direction or front-to-back axis.
The term "transverse" refers to a direction extending along the width of a component. For example, a lateral direction of the article of footwear extends between a lateral side and a medial side of the article of footwear. The lateral direction or axis may also be referred to as a lateral direction or axis or a medial direction or axis.
The term "vertical" refers to a direction that is substantially perpendicular to both the lateral direction and the longitudinal direction. For example, in the case where the sole structure is placed flat on a ground surface, the vertical direction may extend upward from the ground surface. It will be appreciated that each of these directional adjectives may be applied to a separate component of the sole structure. The term "upward" or "upward" refers to a vertical direction that is directed toward the top of a component that may include the instep, fastening area, and/or throat of the upper. The term "downward" or "downward" refers to a vertical direction that is opposite the upward direction, pointing toward the bottom of the component, and may be directed generally toward the bottom of the sole structure of the article of footwear.
An "interior" of an article of footwear, such as a shoe, refers to the portion of the space occupied by the foot of the wearer when the article of footwear is worn. An "interior side" of a component refers to a side or surface of the component that is oriented toward (or will be oriented toward) the component or the interior of the article of footwear in the assembled article of footwear. "exterior side" or "exterior" of a component refers to a side or surface of the component that is oriented away from (or will be oriented away from) an interior of an article of footwear in the assembled article of footwear. In some cases, other components may be located between the interior side of the component and the interior in the assembled article of footwear. Similarly, other components may be located between the exterior side of the component and the space exterior to the assembled article of footwear. Furthermore, the terms "inwardly" and "inwardly" refer to directions toward the interior of a component or article of footwear (e.g., a shoe), and the terms "outwardly" and "outwardly" refer to directions toward the exterior of a component or article of footwear (e.g., a shoe). Furthermore, the term "proximal" refers to a direction that is closer to the center of the footwear component or closer to the foot when the foot is inserted into the article of footwear when the article of footwear is worn by a user. Likewise, the term "distal" refers to a relative position that is further from the center of the footwear component or further from the foot when the foot is inserted into the article of footwear when the article of footwear is worn by a user. Thus, the terms proximal and distal may be understood as providing generally opposite terms to describe relative spatial positions.
While various embodiments have been described, the description is intended to be exemplary, rather than limiting, and it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible that are within the scope of the embodiments. Any feature of any embodiment may be used in combination with or in place of any other feature or element in any other embodiment, unless specifically limited. Accordingly, the embodiments are not to be restricted except in light of the attached claims and their equivalents. Further, many modifications and variations are possible within the scope of the appended claims.
While several modes for carrying out many aspects of the present teachings have been described in detail, those familiar with the art to which these teachings relate will recognize various alternative aspects for practicing the present teachings within the scope of the appended claims. It is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and examples of the full scope of alternative embodiments that a person of ordinary skill would recognize, such alternative embodiments being implied by, being structurally and/or functionally equivalent to, or otherwise apparent based on, the inclusion and not limited to only those explicitly depicted and/or described embodiments.

Claims (25)

1. A sole structure, comprising:
an outsole defining an inner outsole surface and an outer outsole surface opposite the inner outsole surface, and the inner outsole surface being spaced apart from the outer outsole surface along a first direction;
a midsole disposed on the outsole;
a footwear plate is directly coupled to the midsole, wherein the footwear plate comprises a composite material and includes a first plate portion, a second plate portion is connected to the first plate portion, and a third plate portion is connected to the second plate portion, and the second plate portion is connected between the first plate portion and the third plate portion; and is also provided with
Wherein the second plate portion is inclined at an angle relative to the first plate portion and the third plate portion such that the first plate portion is spaced apart from the third plate portion along the first direction to enhance stability of the sole structure while minimizing energy loss when the sole structure contacts a ground surface.
2. The sole structure of claim 1, wherein the midsole comprises a midsole material, the composite has a first stiffness, the midsole material has a second stiffness, and the first stiffness is greater than the second stiffness.
3. The sole structure of claim 1 or 2, wherein the midsole defines an inner midsole surface and an outer midsole surface opposite the inner midsole surface, the midsole defines a midsole through-hole extending from the inner midsole surface to the outer midsole surface of the midsole, the second plate portion is disposed within the midsole through-hole of the midsole, the first plate portion is disposed at a forefoot region of the sole structure, the third plate portion is disposed at a heel region of the sole structure, and the second plate portion is disposed in a midfoot region of the sole structure, the third plate portion is disposed on top of the midsole, the second plate portion is disposed between the inner midsole surface and the outer midsole surface of the midsole, and the midsole through-hole is inclined with respect to the inner midsole surface and the outer midsole surface, the first plate portion is disposed at an angle with respect to the second plate portion, the second plate portion is spaced apart from the outsole portion, and the first plate portion is elongated in a second direction, the second direction is perpendicular to the first direction.
4. A sole structure according to any one of claims 1-3, wherein the midsole defines a midsole longitudinal recess in communication with the midsole through-hole, the midsole longitudinal recess being adjacent the outsole, the midsole longitudinal recess being disposed in a forefoot region of the sole structure, and the first plate portion being at least partially disposed in the midsole longitudinal recess to maximize energy return during toe-off.
5. The sole structure of any of claims 1-4, wherein the outsole defines an inner outsole surface and an outer outsole surface opposite the inner outsole surface, the third plate portion is in direct contact with the inner outsole surface of the outsole, the midsole longitudinal recess is elongated along the second direction, and the second direction is perpendicular to the first direction.
6. The sole structure of any of claims 1-5, wherein the midsole defines an inner midsole surface and an outer midsole surface opposite the inner midsole surface, the midsole defining a midsole opening extending from the inner midsole surface into the midsole, the midsole opening not extending through an entire thickness of the midsole, and the second plate portion is disposed within the midsole opening of the midsole, and the third plate portion is disposed on top of the inner midsole surface at a heel region of the sole structure.
7. The sole structure of any of claims 1-6, wherein the first plate portion is disposed at a forefoot region of the sole structure, the first plate portion is disposed within the midsole, and the first plate portion is closer to the inner midsole surface of the midsole than to the outer midsole surface of the midsole.
8. The sole structure of any of claims 1-7, wherein the midsole is configured as an embedded midsole, the midsole disposed entirely within an interior void of an upper, the third plate portion disposed within the midsole, and the first plate portion disposed within the outsole.
9. The sole structure of any of claims 1-8, wherein the midsole is disposed only at a heel region of the sole structure.
10. The sole structure of any of claims 1-8, wherein the midsole extends through a heel region, a midfoot region, and a forefoot region of the sole structure.
11. The sole structure of any of claims 1-8, wherein the midsole includes a first midsole portion and a second midsole portion that are spaced apart from one another along a longitudinal axis of the sole structure to define a gap therebetween, and the gap receives the second plate portion of the footwear plate.
12. An article of footwear, comprising:
an upper defining an interior void and an ankle opening in communication with the interior void;
a sole structure coupled to the upper, wherein the sole structure includes a forefoot region, a midfoot region, and a heel region, the midfoot region is disposed between the forefoot region and the heel region, and the sole structure includes:
an outsole defining an inner outsole surface and an outer outsole surface opposite the inner outsole surface, and the inner outsole surface being spaced apart from the outer outsole surface along a first direction;
a midsole disposed on the outsole;
a footwear plate is coupled to the midsole, wherein the footwear plate comprises a composite material and includes a first plate portion, a second plate portion directly connected to the first plate portion, and a third plate portion directly connected to the second plate portion, and the second plate portion is connected between the first plate portion and the third plate portion; and is also provided with
Wherein the second plate portion is inclined at an angle relative to the first plate portion and the third plate portion such that the first plate portion is spaced apart from the third plate portion along the first direction to enhance stability of the sole structure while minimizing energy loss of the sole structure when the article of footwear contacts a ground surface.
13. The article of footwear of claim 12, wherein the midsole defines an inner midsole surface and an outer midsole surface opposite the inner midsole surface, the inner midsole surface facing the upper, the outer midsole surface facing away from the upper, the midsole defining a midsole through-hole extending from the inner midsole surface of the midsole to the outer midsole surface of the midsole, the second plate portion being disposed within the midsole through-hole of the midsole, the first plate portion being disposed in the forefoot region of the sole structure, the third plate portion being disposed in the heel region of the sole structure, and the second plate portion being disposed in the midfoot region of the sole structure.
14. The article of footwear of any of claims 12 or 13, wherein the third plate portion is disposed on top of the midsole, the second plate portion is disposed between the inner midsole surface of the midsole and the outer midsole surface of the midsole, and the midsole through-hole is inclined at an angle relative to the inner midsole surface and the outer midsole surface.
15. The article of footwear of any of claims 12-14, wherein the midsole defines a midsole longitudinal recess in communication with the midsole through-hole, the midsole longitudinal recess being adjacent the outsole, the midsole longitudinal recess being disposed in the forefoot region of the sole structure, and the first plate portion being at least partially disposed in the midsole longitudinal recess to maximize energy return during toe-off.
16. The article of footwear of any of claims 12-15, wherein the outsole defines an inner outsole surface and an outer outsole surface opposite the inner outsole surface, the inner outsole surface facing the upper, the outer outsole surface facing away from the upper, the third plate portion being in direct contact with the inner outsole surface of the outsole, the midsole longitudinal recess being elongated in a second direction, and the second direction being perpendicular to the first direction.
17. The article of footwear of any of claims 12-16, wherein the midsole defines an inner midsole surface and an outer midsole surface opposite the inner midsole surface, the inner midsole surface facing the upper, the outer midsole surface facing away from the upper, the midsole defining a midsole opening extending from the inner midsole surface into the midsole, the midsole opening not extending through an entire thickness of the midsole, and the second plate portion being disposed within the midsole opening of the midsole, and the third plate portion being disposed on top of the inner midsole surface at the heel region of the sole structure.
18. The article of footwear according to any of claims 12 to 17, wherein the first plate portion is disposed at the forefoot region of the sole structure, the first plate portion is disposed within the midsole, and the first plate portion is closer to the inner midsole surface of the midsole than to the outer midsole surface of the midsole.
19. The article of footwear according to any of claims 12-18, wherein the midsole is configured as an embedded midsole, the midsole being disposed entirely within the interior void of the upper, the third plate portion being disposed within the midsole, and the first plate portion being disposed within the outsole.
20. The article of footwear of any of claims 12-19, wherein the midsole is disposed only at the heel region of the sole structure.
21. The article of footwear of any of claims 12-20, wherein the midsole extends through the heel region, the midfoot region, and the forefoot region.
22. The article of footwear of any of claims 12-21, wherein the midsole includes a first midsole portion and a second midsole portion that are spaced apart from one another along a longitudinal axis of the sole structure to define a gap therebetween, and the gap receives the second plate portion of the footwear plate.
23. A method of manufacturing an article of footwear, comprising:
inserting a footwear plate through an opening of a midsole to directly couple the footwear plate to the midsole, wherein the footwear plate comprises a composite material, the footwear plate comprises a first plate portion, a second plate portion is connected to the first plate portion, and a third plate portion is connected to the second plate portion, and the second plate portion is connected between the first plate portion and the third plate portion, and the second plate portion is angled obliquely relative to the first plate portion and the third plate portion such that the first plate portion is spaced apart from the third plate portion along a first direction;
attaching the midsole to the outsole, wherein the outsole is elongated along a longitudinal axis, the first direction is perpendicular to the longitudinal axis, a sole structure includes the midsole and the outsole, the sole structure has a forefoot region, a heel region, and a midfoot region located between the forefoot region and the heel region, and the opening of the midsole is disposed at the midfoot region; and
an upper is attached to the sole structure.
24. The method of claim 23, wherein the opening of the midsole is a through-hole extending along an entire thickness of the midsole.
25. The method of claim 23 or 24, wherein the opening of the midsole extends along a portion of a thickness of the midsole.
CN202180057811.3A 2020-09-18 2021-08-16 Footwear sole structure and upper with embedded plates Pending CN116157038A (en)

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