EP4516148A2 - Chaussure à peau texturée - Google Patents

Chaussure à peau texturée Download PDF

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Publication number
EP4516148A2
EP4516148A2 EP24197436.9A EP24197436A EP4516148A2 EP 4516148 A2 EP4516148 A2 EP 4516148A2 EP 24197436 A EP24197436 A EP 24197436A EP 4516148 A2 EP4516148 A2 EP 4516148A2
Authority
EP
European Patent Office
Prior art keywords
ribs
porous body
sole
article
skin layer
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.)
Granted
Application number
EP24197436.9A
Other languages
German (de)
English (en)
Other versions
EP4516148A3 (fr
EP4516148B1 (fr
Inventor
Kyle Christopher JOHNSON
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Adidas AG
Original Assignee
Adidas AG
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 Adidas AG filed Critical Adidas AG
Priority to EP26156200.3A priority Critical patent/EP4714288A2/fr
Publication of EP4516148A2 publication Critical patent/EP4516148A2/fr
Publication of EP4516148A3 publication Critical patent/EP4516148A3/fr
Application granted granted Critical
Publication of EP4516148B1 publication Critical patent/EP4516148B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B1/00—Footwear characterised by the material
    • A43B1/0009—Footwear characterised by the material made at least partially of alveolar or honeycomb material
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/12—Sandals; Strap guides thereon
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/0036—Footwear characterised by the shape or the use characterised by a special shape or design
    • 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
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • 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
    • A43B13/187—Resiliency achieved by the features of the material, e.g. foam, non liquid materials
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0205—Uppers; Boot legs characterised by the material
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0205—Uppers; Boot legs characterised by the material
    • A43B23/0235—Different layers of different material
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0245—Uppers; Boot legs characterised by the constructive form
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0245—Uppers; Boot legs characterised by the constructive form
    • A43B23/028—Resilient uppers, e.g. shock absorbing
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/10—Low shoes, e.g. comprising only a front strap; Slippers
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/12—Sandals; Strap guides thereon
    • A43B3/124—Disposable sandals; One piece sandals

Definitions

  • the described embodiments generally relate to soles for articles of footwear. More particularly, described embodiments relate to soles for articles of footwear including porous bodies formed by a lattice structure and a skin located on an exterior of the porous body to provide desired mechanical and/or aesthetic characteristics to the articles.
  • the human foot is a complex and remarkable piece of machinery, capable of withstanding and dissipating many impact forces.
  • the human foot possesses natural cushioning and rebounding characteristics, the foot alone is incapable of effectively overcoming many of the forces encountered during every day activity.
  • the soreness and fatigue associated with every day activity is more acute, and its onset may be accelerated. This discomfort for the wearer may diminish the incentive for further activity.
  • Equally important, inadequately cushioned footwear can lead to injuries such as blisters; muscle, tendon, and ligament damage; and bone stress fractures. Improper footwear can also lead to other ailments, including back pain.
  • the ribs can be parallel to each other.
  • an area occupied by the skin layer can cover at least 50% of the exterior of the porous body.
  • the porous body can define at least a portion of a sole and at least a portion of an upper for the article of footwear.
  • the article of footwear can be a sandal comprising an upper that comprises at least part of the porous body.
  • the skin layer can extend across at least a portion of the upper.
  • the ribs can be separated by channels including respective portions of the skin layer.
  • An area occupied by the skin layer can cover at least 50% of the exterior of the porous body.
  • the upper can comprise an outer side and an inner side.
  • the skin layer can extend across at least a portion of the outer side and at least a portion of the inner side.
  • the article can comprise a sole attached to the upper.
  • the sole can comprise a second portion of the porous body.
  • the skin layer can extend onto the sole.
  • the sandal can comprise a skin layer that has a lower porosity than the porous body.
  • the sole can comprise an insole side configured to face a bottom of a wearer's foot when the sandal is worn.
  • the skin layer can extend onto the insole side of the sole.
  • Articles of footwear according to the present disclosure can comprise a porous body.
  • the porous body can comprise a three dimensional mesh.
  • the term "three-dimensional mesh” means a three-dimensional structure comprising interconnected structural members defining a plurality of unit cells.
  • the structural members, and thus the unit cells can be connected at nodes.
  • the unit cells can be arranged in a lattice configuration.
  • the interconnected structural members can be struts that are connected at nodes and that define unit cells arranged in a lattice configuration.
  • Exemplary lattice configurations include, but are not limited to modified basic cubic lattices, modified body-centered cubic lattices, and modified face-centered cubic lattices.
  • a portion or an entirety of an article of footwear comprising a porous body (for example, a three-dimensional mesh) as discussed herein can be manufactured using one or more additive manufacturing methods.
  • Additive manufacturing methods can allow for fabrication of three-dimensional objects without the need for a mold. By reducing or eliminating the need for molds, additive manufacturing methods can reduce costs for a manufacturer, and in turn a consumer, of a product (e.g., a shoe). Integral manufacturing of an article of footwear using additive manufacturing can make the assembly of separate elements of the article of footwear unnecessary.
  • an additively manufactured article of footwear can be fabricated from single material, which can facilitate easy recycling of the article of footwear.
  • the additive manufacturing process can include a continuous liquid interface production process.
  • the additive manufacturing process can include a continuous liquid interface production process as described in U.S. Pat. No. 9,453,142, issued on September 27, 2016 , which is hereby incorporated in its entirety by reference thereto.
  • Suitable techniques include bottom-up and top-down additive manufacturing, generally known as stereolithography.
  • Such methods are known and described in, for example, U.S. Patent No. 5,236,637 to Hull , US Patent Nos. 5,391,072 and 5,529,473 to Lawton , U.S. Patent No. 7,438,846 to John , US Patent No. 7,892,474 to Shkolnik , U.S. Patent No. 8,110,135 to El-Siblani, U.S. Patent Application Publication No. 2013/0292862 to Joyce , and US Patent Application Publication No. 2013/0295212 to Chen et al. The disclosures of these patents and applications are incorporated by reference herein in their entirety.
  • the additive manufacturing step can be carried out by one of the family of methods sometimes referred to as continuous liquid interface production (CLIP).
  • CLIP is known and described in, for example, US Patent Nos. 9,211,678 ; 9,205,601 ; 9,216,546 ; and others; in J. Tumbleston et al., Continuous liquid interface production of 3D Objects, Science 347, 1349-1352 (2015 ); and in R. Janusziewcz et al., Layerless fabrication with continuous liquid interface production, Proc. Natl. Acad. Sci. USA 113, 11703-11708 (October 18, 2016 ).
  • stereolithography techniques such as CLIP can be preferred, it will be appreciated that other additive manufacturing techniques, such as jet printing (see, e.g., US Patent No. 6,259,962 to Gothait and US Patent App. Serial No. US 2020/0156308 to Ramos et al. ) can also be used.
  • jet printing see, e.g., US Patent No. 6,259,962 to Gothait and US Patent App. Serial No. US 2020/0156308 to Ramos et al.
  • an article of footwear can comprise a porous body and a skin layer on the porous body.
  • the skin layer can define, in whole or in part, one or more textures (e.g., ribs or studs) on the article of footwear.
  • the skin layer can have a lesser porosity than the porous body.
  • the skin layer can be a solid layer.
  • the skin layer can define ribs that extend outward from the porous body.
  • the porous body can comprise a three dimensional mesh.
  • the three dimensional mesh can comprise interconnected structural members defining a plurality of unit cells.
  • the structural members, and thus the unit cells can be connected at nodes.
  • the unit cells can be arranged in a lattice configuration.
  • the interconnected structural members can be struts that are connected at nodes and that define unit cells arranged in a lattice configuration.
  • the article of footwear can comprise an upper and a sole.
  • the upper and the sole can each comprise a respective portion of the porous body.
  • ribs can be defined on the upper.
  • ribs can be defined on the sole.
  • ribs can be defined on the upper and on the sole.
  • the porous body and the skin layer can define an entirety of the upper.
  • the porous body and the skin layer can define an entirety of the sole.
  • the porous body can extend continuously from the sole to the upper.
  • the skin layer can extend continuously from the sole to the upper.
  • the sole can comprise an insole side configured to face a bottom of the wearer's foot.
  • ribs can be defined on the insole side.
  • the insole side can comprise a recessed portion and a raised perimeter extending around the recessed portion. In such embodiments, the ribs can extend across the recessed portion.
  • Channels can be defined between the ribs on articles of footwear discussed herein.
  • each widthwise cross section of a channel can comprise a minimum defined at a local lowest point of the channel.
  • a raised perimeter for an insole side can be higher than any channel minimum in a recessed portion at the same location along the longitudinal axis.
  • the raised perimeter can be higher than any rib at the same location along the longitudinal axis.
  • FIGS. 1A-1C are, respectively, side top and bottom view of an article of footwear 110 according to some embodiments, and FIG. 1D is a cross section of the article of footwear 110.
  • the article of footwear 110 is a "slide" style sandal, though the concepts of the present disclosure can be applied to types of footwear other than slides, such as other types of sandals or footwear other than sandals.
  • article 110 comprises a porous body 146 and a skin layer 162 on the porous body.
  • Skin layer 162 can have a lesser porosity than porous body 146.
  • skin layer 162 can be a solid layer.
  • skin layer 162 can optionally lack any through pores (i.e., pores that extend from outside article 110 through skin layer 162 to porous body 145).
  • skin layer 162 can be a layer of material lacking any pores.
  • porous body 146 can comprise a first porosity and the skin layer 162 can comprise a second porosity less than the first porosity.
  • the second porosity can be at least 5% less than the first porosity.
  • the second porosity can be at least 10% less than the first porosity.
  • the second porosity can be at least 25% less than the first porosity.
  • the second porosity can be at least 50% less than the first porosity.
  • the second porosity can be at least 75% less than the first porosity.
  • the second porosity can be at least 90% less than the first porosity.
  • the second porosity can be at least 95% less than the first porosity. In further embodiments, the second porosity can be at least 99% less than the first porosity. In further embodiments, the second porosity can be 100% less than the first porosity, in which case the second porosity can be zero, and the skin layer 162 can be free of pores 144.
  • the porous body 146 is a lattice of interconnected unit cells comprising a base geometry that defines the pores and the porosity of the v 162 is 100% less than the porosity of the porous body 146
  • the skin layer 162 does not comprise any lattice of interconnected unit cells comprising the base geometry.
  • Porcity refers to a void fraction for a component, which refers to a volumetric amount of void space compared to a total volume of a component being considered.
  • the porosity of a unit cell is a volume of void space in the unit cell's geometry divided by the total volume of the unit cell.
  • a porosity of a skin layer is an amount of void in a representative portion of the skin layer divided by the total volume of the representative portion.
  • a component having 1 cubic centimeter (cc) of void space for a 2 cubic centimeter (cc) portion of the component has a porosity of 50%.
  • a higher porosity means that a component has a greater void faction.
  • Zero is a possible value of "porosity" as used herein and means that the component has zero void space for the portion of the component being considered. Thus, where a first component is said to have a greater porosity than a second component, the second component can have zero void space unless stated otherwise.
  • porous body 146 can be a three dimensional mesh.
  • the three dimensional mesh can comprise interconnected structural members 150 defining a plurality of unit cells.
  • the structural members 150, and thus the unit cells, can be connected at nodes 154.
  • the unit cells can be unit cells comprising a base geometry arranged in a lattice configuration.
  • interconnected structural members 150 can be struts 150 that are connected at nodes 154 and that define unit cells arranged in a lattice configuration.
  • base geometry means the base three dimensional shape of a unit cell.
  • a base geometry is the three dimensional shape of a unit cell in an unwarped and unmodified state (e.g., when the unit cell is not deformed by loading, conformed to a specific shape, or modified as described herein).
  • the base geometry of a unit cell can be, but is not limited to, a dodecahedron (e.g., rhombic), a tetrahedron, an icosahedron, a cube, a cuboid, a prism, or a parallelepiped.
  • a base geometry can be struts and nodes forming, for example, but not limited to, a dodecahedron (e.g., rhombic), a tetrahedron, an icosahedron, a cube, a cuboid, a prism, or a parallelepiped.
  • a dodecahedron e.g., rhombic
  • a tetrahedron e.g., an tetrahedron
  • an icosahedron a cube
  • a cuboid e.g., a prism
  • a parallelepiped e.g., a parallelepiped
  • pores 144 of porous body 146 can be cavities defined by the lattice of unit cells.
  • a size of a pore 144 can be defined as a diameter of a largest sphere that could fit in the pore 144.
  • Average pore size can be defined as an average diameter of sizes of all pores 144 defined by an object.
  • a maximum pore size can be defined as a diameter of a largest sphere that could fit in any pore defined by an object.
  • skin layer 162 can have a smaller maximum pore size than porous body 146.
  • skin layer 162 can have a maximum pore size smaller than an average pore size of porous body 146.
  • skin layer 162 can cover a majority of an exterior of porous body 146.
  • the exterior of porous body 146 refers to a boundary of a volume that contains porous body 146 without extending into any pores 144 in porous body 146.
  • the boundary that defines the exterior of porous body 146 does not extend into any voids defined within the base geometry of the unit cells.
  • one or more of the unit cells can be truncated at the exterior of porous body 146, thereby forming an incomplete instance of the base geometry that adjoins the boundary.
  • the area of the exterior of the porous body is the surface area of a shape that extends across the surfaces formed at the truncations of the incomplete base geometries without extending into any voids defined within the existing portions of the incomplete base geometries.
  • skin layer 162 can cover at least 50% of the exterior of porous body 146, at least 60% of the exterior of porous body 146, at least 75% of the exterior of porous body 146, at least 90% of the exterior of porous body 146, at least 95% of the exterior of porous body 146, at least 99% of the exterior of porous body 146, or an entirety of the exterior of porous body 146.
  • Skin layer 162 can extend onto any one or any combination of an outsole side 122 of sole 114, an insole side 124 of sole 114, an outer side 130 of upper 118, and an inner side 132 of upper 118.
  • skin layer 162 can extend across at least a portion of upper 118.
  • skin layer 162 can extend across at least a portion of outer side 130 of upper 118. In further such embodiments, skin layer 162 can extend across at least a portion of inner side 132 of upper 118. Similarly, skin layer 162 can extend across at least a portion of sole 114. In some such embodiments, skin layer 162 can extend across a portion of outsole side 122 of sole 114. In further such embodiments, skin layer 162 can extend across at least a portion of insole side 124 of sole 114.
  • Article 110 can comprise ribs 134 extending outward from porous body 146. Ribs 134 can run along an exterior of article 110. Ribs 134 can include part of skin layer 162. In some embodiments, ribs 134 can be defined entirely by skin layer 162 such that skin layer 162 comprises ribs 134. In other embodiments, ribs 134 can be defined partially by skin layer 162 and partially by porous body 146 such that ribs 134 comprise part of skin layer 162 and part of porous body 146.
  • Ribs 134 can comprise various shapes and characteristics as described herein. In some embodiments, ribs 134 can comprise features of ribs 234 described herein. In some embodiments, ribs 134 can comprise features of ribs 334 described herein. In some embodiments, ribs 134 can comprise features of ribs 434 described herein.
  • Some ribs 134 can extend across multiple surfaces by wrapping around contours of the exterior of article 110. For example, some ribs 134 can extend onto both sole 114 and upper 118. Some such ribs 134, as shown in FIG. 1A in particular, can extend from outsole side 122 of sole 114 to outer side 130 of upper 118. Other such ribs 134, as shown in FIG. 1E in particular, can extend from insole side 124 of sole 114 to inner side 132 of upper 118. Some ribs 134 extending from insole side 124 of sole 114 to inner side 132 of upper 118 can encircle a portion of inner space 126.
  • ribs 134 can extend from outsole side 122 to insole side 124 and thereby wrap around sole 114 as shown in FIGS. 1B and 1C .
  • the ribs 134 that wrap around sole 114 can extend across raised perimeter 178 of insole side 124.
  • a first plurality of ribs 134 can extend across a portion of an exterior of sole 114, wherein the first plurality of ribs 134 defines a first plurality of channels 158 between neighboring ribs 134 among the first plurality of ribs 134. Channels 158 among the first plurality of channels 158 can be equal in width along at least a portion of their length.
  • a second plurality of ribs 134 can extend across a portion of an exterior of upper 118, wherein the second plurality of ribs 134 defines a second plurality of channels 158 between neighboring ribs 134 among the second plurality of ribs 134. Channels 158 among the second plurality of channels 158 can be equal in width along at least a portion of their length.
  • Channels 158 are defined between ribs 134. Whereas ribs 134 are local raised portions of an exterior of article 110, channels 158 are local recesses in the exterior of article 110 between adjacent ribs. Thus, on any surface of article 110 across which ribs 134 extend, an alternating pattern of ribs 134 and channels 158 can be defined. A depth of channels 158 is the same as height 166 of ribs 134 adjoining those channels 158. Height 166 can vary at different locations across article 110, but can remain within a range of, for example, from 0.5 mm through 10 mm.
  • a width 168 of a channel 158 at a given location is a distance between peaks of the two ribs 134 between which the channel is defined, measured perpendicular to a tangent line 160 to a center line 172 of channel 158 at that location.
  • a width of a rib 134 is similarly the distance between the center lines 172 of the two adjacent channels 158 measured perpendicularly to a line tangent to a center line of the rib 134 at that location.
  • Widths of channels 158 and ribs 134 can vary at different locations on article 110. In some embodiment, widths of ribs 134 and channels 158 across article 110 can fall within a range from 0.5 mm through 10 mm. In further embodiments, some or all channels 158 can have a constant width 168 along at least a majority of their respective lengths.
  • skin layer 162 can be absent from some portions of the exterior of porous body 146 such that porous body 146 provides part of an exterior of article 110.
  • skin layer 162 can define openings that extend through skin layer 162 to expose porous body 146.
  • the openings may be defined in channels 158.
  • porous body 146 may define part of a ground-facing side of sole 114.
  • Each rib 134 has an inner volume 164 defined outward from the lowest points of the adjoining channels 158.
  • the inner volume 164 of each rib 134 is filled with the material that makes up skin layer 162 such that skin layer 162 includes the ribs 134 (as shown for example in FIG. 3F ).
  • porous body 146 can extend into inner volume 164 such that each rib 134 includes a portion of skin layer 162 and a portion of porous body 146 (as shown for example in FIG. 2F ).
  • article 110 comprises a sole 114 and an upper 118.
  • An interior space 126 of article 110 is defined between sole 114 and upper for receiving a wearer's foot 170.
  • Sole 114 can be defined by porous body 146 and skin layer 162.
  • Upper 118 can be defined by porous body 146 and skin layer 162.
  • sole 114 and upper 118 can be defined by different portions of the same porous body 146 and skin layer 162 such that sole 114 and upper 118 are monolithic.
  • sole 114 and upper 118 each comprise a respective portion of porous body 146.
  • sole 114 can comprise a first portion of porous body 146 and upper can comprise a second potion of porous body 146. Further, porous body 146 can define a portion of sole 114. Similarly, porous body 146 can define a portion of upper 118.
  • Sole 114 comprises an outsole side 122 and an insole side 124.
  • Outsole side 122 faces away from upper 118.
  • Outsole side 122 also faces toward the ground when article 110 is worn, as shown for example in FIG. 1D .
  • outsole side 122 can be configured to engage the ground when article 110 is worn as shown in FIG. 1D , though in other embodiments article 110 can be provided with an additional sole element for attaching to outsole side 122 and engaging the ground.
  • ribs 134 can extend across outsole side 122 and thereby act to facilitate traction between sole 114 and the ground.
  • Insole side 124 faces toward upper 118 and therefore defines a boundary of interior space 126.
  • Insole side 124 of the illustrated embodiment can contact the bottom or sole of wearer's foot 170 when article 110 is worn, as shown for example, in FIG. 1D , though in other embodiment article 110 can be provided with an insole insert to be disposed between insole side 124 and the wearer's foot 170.
  • ribs 134 can extend across insole side 124.
  • the ribs 134 can create an uneven distribution of pressure across the bottom or sole of wearer's foot 170.
  • the wearer's foot 170 experiences a greatest pressure where it contacts ribs 134.
  • the greatest pressure on the wearer's foot 170 will be at a peak of the rib 134, meaning a highest point of the rib 134 and the furthest from the bottoms of the adjacent channels 158.
  • the wearer's foot 170 can experience relatively little or no pressure from sole 114 where foot 170 extends across channels 158.
  • the above described uneven distribution of pressure between insole side 124 of sole 114 and the wearer's foot 170 created by ribs 134 extending across insole side 124 can have a therapeutic effect on the wearer's foot 170.
  • the uneven pressure distribution created by ribs 134 can have a massaging effect on the sole of wearer's foot 170.
  • the areas of relatively high pressure between ribs 134 and the wearer's foot 170 can act as pressure points and thereby relieve any one or any combination of tension, soreness, and fatigue in the muscles of foot 170, particularly the plantar muscles but without limitation thereto.
  • Such massaging effect can also stimulate blood flow to the foot, particularly to the plantar muscles but without limitation thereto, which can facilitate the wearer's recovery from activities that tax foot muscles, such as athletic activities.
  • a raised perimeter 178 can defined on insole side 124 of sole 114.
  • raised perimeter 178 can define a recessed portion (for example, recess portion 180 as shown in FIG. 1B ) of insole side 124 that is surrounded by the raised perimeter.
  • a height 174 of raised perimeter 178 at each longitudinal location along sole 114 is defined relative to a theoretical planar surface defined across a bottom of outsole side 122.
  • the theoretical planar surface 106 is defined such that it would align with a planar surface upon which article 110 can rest with outsole side 122 facing downward.
  • the longitudinal axis 108 includes a forward direction and a backward direction defined relative to article 110 such that a toe end 112 is a forward-most point of article 110 and a heel end 116 is a backward-most point of article 110.
  • the height of raised perimeter 178 can range from 5 mm to 10 mm, from 10 mm to 15 mm, from 15 mm to 20 mm, or from 20 mm to 25 mm.
  • Each widthwise cross section of a channel 158 can include a minimum defined at a local lowest point 182 of the channel 158, which can be aligned with the center line 172.
  • raised perimeter 178 can be higher than any channel minimum in the recessed portion at the same location along longitudinal axis 108.
  • the recessed portion of insole side 124 can be an area bounded by raised perimeter 178 that includes channels 158 that extend below raised perimeter 178 as well as ribs 134 between which those channels 158 are defined.
  • raised perimeter 178 can be higher than any part of any rib 134 at the same location along longitudinal axis 108.
  • the recessed portion of insole side 124 can be an area bounded by raised perimeter 178 that does not extend to a height of raised perimeter 17 8.
  • raised perimeter 178 is higher than ribs 134
  • ribs 134 can have a first height defined relative to channels 158 while raised perimeter 178 has a second height defined relative to channels 158, the second height being greater than the first height.
  • ribs 134 on both outsole side 122 and insole side 124 of sole 114 can extend transverse to longitudinal axis 108.
  • the orientation of ribs 134 on outsole side 122 and insole side 124 of sole 114 transverse to longitudinal axis 108 can facilitate bending of sole 114 in a manner that cooperates with the rolling of the wearer's foot 170 through a stride (i.e., bending about horizontal axes perpendicular to longitudinal axis 108).
  • a majority or all ribs 134 on both outsole side 122 and insole side 124 of sole 114 extend on respective trajectories defining angles less than or equal to 15° away from perpendicular to longitudinal axis 108, with the respective trajectory of a rib 134 for this purpose being defined by a straight line extending from a lateral-most end of the rib 134 to a medial-most end of the rib 134.
  • a majority or all ribs 134 on both outsole side 122 and insole side 124 of sole 114 extend less than or equal to 15° away from perpendicular to longitudinal axis 108 along a majority of their length, with the direction of extension of each rib 134 at a given position along its length being defined by a line tangent to the rib 134 at that position.
  • a majority or all ribs 134 on both outsole side 122 and insole side 124 of sole 114 extend less than or equal to 15° away from perpendicular to longitudinal axis 108 along an entirety of their length, with the direction of extension of each rib 134 at a given position along its length being defined by a line tangent to the rib 134 at that position.
  • the closer ribs 134 on outsole side 122 and insole side 124 are to perpendicular to longitudinal axis 108 the less sole 114 overall will resist bending in a manner complementary to a wearer's stride as described above, and the more sole 114 will resist bending about longitudinal axis 108.
  • ribs 134 on outsole side 122 and insole side 124 extending perpendicular or nearly perpendicular to longitudinal axis 108 can facilitate flexibility in sole 114 that lends itself to a comfortable walking experience while providing lateral-medial support.
  • the herringbone pattern of ribs 334 on sole 314 can improve traction between sole 314 and certain surfaces.
  • the teeth defined by the herringbone pattern of ribs 334 on outsole side 322 can dig into a surface a wearer walks on and thereby provide traction between the surface and outsole side 322.
  • the herringbone pattern of ribs on insole side 324 can similarly engage a wearer's foot. Engaging the wearer's foot in this manner can prevent the sole 314 from slipping unexpectedly, which can reduce the likelihood of the wearer tripping or stepping out of the article 310.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP24197436.9A 2023-09-01 2024-08-30 Chaussure à peau texturée Active EP4516148B1 (fr)

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EP4714288A2 (fr) 2026-03-25

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