EP2906067B1 - Traitement anti-allongement de cuir pour articles chaussants - Google Patents

Traitement anti-allongement de cuir pour articles chaussants Download PDF

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Publication number
EP2906067B1
EP2906067B1 EP14708704.3A EP14708704A EP2906067B1 EP 2906067 B1 EP2906067 B1 EP 2906067B1 EP 14708704 A EP14708704 A EP 14708704A EP 2906067 B1 EP2906067 B1 EP 2906067B1
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EP
European Patent Office
Prior art keywords
weld
article
disposed
footwear
welds
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.)
Active
Application number
EP14708704.3A
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German (de)
English (en)
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EP2906067A1 (fr
Inventor
Thomas Berend
Dylan S. Vanatta
Tony H. Le
Douglas A. Beye
Kevin J. Rucier
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Nike Innovate CV USA
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Nike Innovate CV USA
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Publication of EP2906067A1 publication Critical patent/EP2906067A1/fr
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    • 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
    • A43B23/0215—Plastics or artificial leather
    • 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
    • A43B23/0255—Uppers; Boot legs characterised by the constructive form assembled by gluing or thermo bonding
    • 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
    • A43B23/0265—Uppers; Boot legs characterised by the constructive form having different properties in different directions
    • 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
    • A43B23/04—Uppers made of one piece; Uppers with inserted gussets

Definitions

  • the present invention relates generally to articles of footwear, and more specifically to anti-stretch treatment of natural leather or suede material for articles of footwear.
  • Articles of footwear made of natural leather or suede materials are known in the art. Over time, articles of footwear made of natural leather or suede materials can undergo stretching or other loss of shape or form from their original configuration.
  • GB 1 426 776 (Fukuoka, 1976 ) describes a method of producing a shoe comprising an upper and a sole. The method comprises positioning a preformed section of the upper within a cavity of a mold, and injecting into the cavity a molten synthetic resinous material, the arrangement being such that the molten material sets to form another section of the upper and said shape-retaining and connecting member being integral therewith which connects the preformed section of the upper with the molded section of the upper.
  • the invention relates to an article of footwear as specified in claim 1 and to a method of providing resistance to stretching to an article of footwear as specified in claim 13. Preferred embodiments are specified in the dependent claims.
  • the articles of footwear described herein may be configured for use in a wide range of athletic footwear styles, including skateboarding shoes, running shoes, basketball shoes, cross-training shoes, football shoes, golf shoes, hiking shoes and boots, ski and snowboarding boots, soccer shoes, tennis shoes, and walking shoes, for example.
  • the anti-stretch treatment of natural leather or suede materials may also be applied to footwear styles that are generally considered to be primarily non-athletic, including dress shoes, loafers, sandals, casual shoes, clogs, flats, heels, pumps, wedges, and work boots.
  • the anti-stretch treatment for natural leather or suede materials may be incorporated into other types of apparel and athletic equipment, including helmets, gloves, and protective padding for sports, such as football and hockey. Similar material may also be incorporated into cushions and other compressible structures utilized in household goods and industrial products. Additionally, anti-stretch treatment of natural leather or suede materials may be applied to a variety of other products or for a variety of other purposes.
  • FIG. 1 is a representational view of a conventional article of footwear 100.
  • conventional article of footwear 100 is configured as a skateboarding shoe.
  • Conventional article of footwear 100 includes an upper 102 and a sole structure.
  • Upper 102 of conventional article 100 has a vamp 104 covering the instep of a foot of a wearer.
  • vamp 104 is associated with a first width W1 when conventional article 100 is new or in an original configuration.
  • conventional article 100 is worn on a foot 106 of a wearer.
  • conventional article 100 is used with a skateboard 108.
  • a wearer can perform a variety of moves or tricks with skateboard 108 that interact with or otherwise involve wear and friction to conventional article 100.
  • a skateboarding shoe can lose shape or form after being repeatedly worn overtime, causing portions of the upper, including the vamp, to become stretched or "bagged out”. As shown in FIG.
  • conventional article 100 can have a stretched-out upper 102 from repeated use with skateboard 108, resulting in vamp 104 being associated with a second width W2 in a worn configuration that is larger than first width W1 of vamp 104 when conventional article 100 is in its new or original configuration.
  • other portions of upper 102 and/or vamp 104 in the worn configuration can be stretched out or otherwise have lost shape or form from when conventional article 100 was in its new or original configuration.
  • articles of footwear made from natural leather or suede materials can exhibit variations in the amount of stretching that occurs on different portions of the article.
  • FIG. 2 a representational view of a natural leather material used for manufacturing articles of footwear is shown.
  • the natural leather material is a cowhide 200.
  • Cowhide 200 can be divided into a plurality of different regions that correspond to the various parts of the animal from which the hide was obtained.
  • cowhide 200 can include a head region 202, a shoulder region 204, a hind region 206, a belly region 208, and/or a shank region 210.
  • Each region of cowhide 200 may exhibit varying degrees or amounts of stretch that is an inherent property of the natural leather from that region of cowhide 200.
  • material from belly region 208 can exhibit a greater degree of natural stretch property or stretchiness than material from shoulder region 204 or hind region 206.
  • a single piece of natural leather material, such as cowhide 200 is typically used to manufacture a plurality of articles of footwear by cutting out a plurality of upper pattern 212 from across the different region of cowhide 200. Accordingly, depending on the region of cowhide 200 that each upper pattern 212 is obtained from to manufacture an article of footwear, the upper and/or vamp of different articles of footwear can undergo varying degrees or amounts of stretch from one another.
  • a first upper pattern 220 can be obtained from shoulder region 204 of cowhide 200 and a second upper pattern 224 can be obtained from a portion of hind region 206 and a portion of belly region 208.
  • first upper pattern 220 exhibits an overall stretch property that is essentially uniform throughout first upper pattern 220. Accordingly, when force is applied to first upper pattern 220 to stretch or pull the material into a stretched configuration 222, the material of first upper pattern 220 stretches essentially the same amount in every direction in stretched configuration 222.
  • second upper pattern 224 is obtained from a portion of hind region 206 and a portion of belly region 208.
  • different portions of second upper pattern 224 associated with the different regions of cowhide 200 may exhibit varying amounts of stretch property so that second upper pattern 224 does not exhibit a uniform overall stretch property through the material.
  • the material of second upper pattern 224 at a first end 226 stretches by a lesser degree or amount than the material of second upper pattern 224 at a second end 228 that was obtained from a different region of cowhide 200.
  • anti-stretch treatment of natural leather or suede materials may be used to prevent or reduce the degree or amount of variation in stretch property of an upper and/or vamp of articles of footwear and/or to otherwise provide resistance to stretching to portions of the article.
  • FIGS. 3 through 8 illustrate an exemplary embodiment of an anti-stretch treatment in the form of a series of welds applied to an upper of an article of footwear.
  • article of footwear 300 may be divided into forefoot region 10, midfoot region 12 and heel region 14.
  • Forefoot region 10 may be generally associated with the toes and joints connecting the metatarsals with the phalanges.
  • Midfoot region 12 may be generally associated with the arch of a foot.
  • heel region 14 may be generally associated with the heel of a foot, including the calcaneus bone.
  • article 300 may include medial side 16 and lateral side 18.
  • medial side 16 and lateral side 18 may be opposing sides of article 300.
  • both medial side 16 and lateral side 18 may extend through forefoot region 10, midfoot region 12 and heel region 14.
  • forefoot region 10, midfoot region 12 and heel region 14 are only intended for purposes of description and are not intended to demarcate precise regions of article 300.
  • medial side 16 and lateral side 18 are intended to represent generally two sides of an article, rather than precisely demarcating article 300 into two halves.
  • forefoot region 10, midfoot region 12 and heel region 14, as well as medial side 16 and lateral side 18, can also be applied to individual components of an article, such as a sole structure and/or an upper.
  • directional adjectives are employed throughout this detailed description corresponding to the illustrated embodiments.
  • the term "longitudinal” as used throughout this detailed description and in the claims refers to a direction extending a length of an article. In some cases, the longitudinal direction may extend from a forefoot region to a heel region of the article.
  • the term “lateral” as used throughout this detailed description and in the claims refers to a direction extending a width of an article. In other words, the lateral direction may extend between a medial side and a lateral side of an article.
  • the term “vertical” as used throughout this detailed description and in the claims refers to a direction generally perpendicular to a lateral and longitudinal direction. For example, in cases where an article is planted flat on a ground surface, the vertical direction may extend from the ground surface upward. It will be understood that each of these directional adjectives may be applied to individual components of an article, such as an upper and/or a sole structure.
  • article of footwear 300 may include an upper 302 and a sole structure 304.
  • Sole structure 304 is secured to upper 302 and extends between the foot and the ground when article 300 is worn.
  • sole structure 304 may include different components.
  • sole structure 304 may include an outsole, a midsole, and/or an insole. In some cases, one or more of these components may be optional.
  • sole structure 304 may be configured to provide traction for article 300. In addition to providing traction, sole structure 304 may attenuate ground reaction forces when compressed between the foot and the ground during walking, running or other ambulatory activities.
  • the configuration of sole structure 304 may vary significantly in different embodiments to include a variety of conventional or non-conventional structures. In some cases, the configuration of sole structure 304 can be configured according to one or more types of ground surfaces on which sole structure 304 may be used. Examples of ground surfaces include, but are not limited to: natural turf, synthetic turf, dirt, as well as other surfaces.
  • upper 302 may be any type of upper.
  • upper 302 may have any design, shape, size and/or color.
  • upper 302 could be a low top upper.
  • upper 302 could be a high top upper that is shaped to provide high support on an ankle.
  • upper 302 may be made from any suitable material, including but not limited to, for example, nylon, natural leather or suede, synthetic leather, natural rubber, or synthetic rubber.
  • upper 302 can be made of any suitable knitted, woven or non-woven material.
  • upper 302 may be made from natural leather or suede materials.
  • Upper 302 may define a void in article 300 for receiving and securing a foot of a wearer relative to sole structure 304.
  • the void is shaped to accommodate a foot and extends along the lateral side of the foot, along the medial side of the foot, over the foot and under the foot.
  • upper 302 may be provided with an entry hole 306 that provides access to the void.
  • entry hole 306 may be provided adjacent to a top end portion 310 of upper 302.
  • article 300 is configured as a slip-on type shoe, however, in other embodiments, article 300 may be configured with a lacing system or other securing mechanism to assist with securing an article to a foot of a wearer.
  • article 300 may include a vamp portion 308.
  • vamp portion as used throughout this detailed description and in the claims generally refers to a portion of upper 302 extending through midfoot region 12.
  • vamp portion 308 may be configured to cover an instep of a foot of a wearer.
  • vamp portion 308 may further extend over at least a portion of the toes of a wearer towards a toe end portion 312 of article 300.
  • vamp portion 308 may extend over upper 302 towards top end portion 310 adjacent to entry hole 306 of upper 302.
  • vamp portion 308 may include an anti-stretch treatment 314.
  • anti-stretch treatment 314 may be configured to maintain or lock the stretch property of vamp portion 308 of upper 302 to prevent or reduce stretching out or otherwise losing shape or form.
  • anti-stretch treatment 314 may include a plurality of welds in the material of upper 302, as further described in more detail below. With this arrangement, anti-stretch treatment 314 may prevent or reduce the degree or amount of variation in stretch property of upper 302.
  • article 300 may be provided with a mesh portion 400 disposed along medial side 16 of upper 302.
  • Mesh portion 400 may be made of a mesh material or other suitable woven or non-woven knitted material.
  • mesh portion 400 may be configured to assist with breathability of article 300 and to promote airflow within the interior of article 300.
  • article 300 may be provided with additional components that are configured to assist with providing strength to a portion of upper 302 and to help prevent or resist stretching out of upper 302 and/or vamp portion 308.
  • article 300 may include a plurality of tensile strand elements 402 disposed along medial side 16 of article 300.
  • tensile strand elements 402 extend between a bottom edge 404 disposed along medial side 16 of upper 302 adjacent to sole structure 304 and a top edge 406 disposed adjacent to top end portion 310 of upper 302.
  • Plurality of tensile strand elements 402 may include the strands or other structures disclosed in one or more of the following: Dojan et al., U.S. Patent Number 8,266,827 , entitled “Article of Footwear Incorporating Tensile Strands and Securing Strands", issued on September 18, 2012; Dojan, U.S. Patent Application Publication Number 2012/0023786 , entitled “Article of Footwear Incorporating Floating Tensile Strands", published on February 2, 2012; Dojan et al., U.S. Patent Application Publication Number 2010/0175276 , entitled “Material Elements Incorporating Tensile Strands", published on July 15, 2010; and Dojan et al., U.S. Patent Application Publication Number 2012/0017468 , entitled “Article of Footwear Incorporating Tensile Strands with an Elongate Cross-Sectional Shape", published on January 26, 2012.
  • plurality of tensile strand elements 402 may be similarly disposed on lateral side 18 in a corresponding configuration as on medial side 16. In still other embodiments, plurality of tensile strand elements 402 is optional and may be omitted.
  • anti-stretch treatment 314 may include a plurality of welds in the material of upper 302 through vamp portion 308.
  • the plurality of welds may prevent or reduce the degree or amount of variation in stretch property of the natural leather or suede material used to make upper 302.
  • the plurality of welds of anti-stretch treatment 314 on upper 302 may be formed by any suitable method of fusing materials of an upper.
  • the material of the upper may be fused by a thermal fusion method.
  • the thermal fusion method may include bonding through hot die, steam or hot air heating methods.
  • the material of the upper may be fused by a welding method.
  • welding methods may be utilized to form the plurality of welds in an upper.
  • the welding method used to create the plurality of welds may include a high frequency welding method.
  • the high frequency welding method may include an ultrasonic welding method or a radio frequency welding method.
  • the material may be made of any material suitable for such a method.
  • the material of upper 302 includes natural leather or suede materials. Due to the inherent variations in stretch property of natural leather or suede materials, the plurality of welds of anti-stretch treatment 314 may be used to prevent or reduce the degree or amount of variation in stretch property of the natural leather or suede material used to make upper 302.
  • the material used to make upper 302 may be made of any other material suitable for high frequency welding methods.
  • Materials suitable for high frequency welding include thermoplastic material or natural material coated with a thermoplastic material.
  • materials suitable for high frequency welding methods include an acrylic, a nylon, a polyester, a polylactic acid, a polyethylene, a polypropylene, polyvinyl chloride (PVC), an urethane, a natural fiber, such as cotton or wool, that is coated with one or more thermoplastic materials, such as an ethyl vinyl acetate or thermoplastic polyurethane, and combinations thereof.
  • an ultrasonic welding device is used to fuse portions of the material of upper 302 corresponding to the plurality of welds of anti-stretch treatment 314.
  • Ultrasonic welding devices use high frequency ultrasonic acoustic vibrations. The vibrations may be applied locally to a portion of the material of the upper. Further, the vibrations applied to the material cause friction, which softens the material to fuse the specific portion of the material. The fusion of the selected portions of the upper may be considered a solid state weld.
  • the vibrations can result in latent water and/or oils disposed within the natural leather or suede materials being vaporized.
  • the fusion of the selected portions of the upper causes the natural leather or suede material at that location to be considerably denser and/or harder than the surrounding un-welded or un-fused portions of the upper. Due to this property of the plurality of welds, the material of upper 302 may prevent or resist stretching.
  • Some embodiments may employ one or more of the principles, concepts or methods disclosed in the following patents: Albanese et al., U.S. Patent Number 7,883,594 , entitled “Wrapped pile weatherstripping and methods of making same,” issued on February 8, 2011; Chernyak, U.S. Patent Number 7,824,513 , entitled “Apparatus and method for making pile articles and improved pile articles made therewith,” issued on November 2, 2010; Lehto et al., U.S. Patent Number 7,776,171 , entitled “Arrangement and method for treatment of a material by means of an ultrasonic device,” issued on August 17, 2010; Perrine, U.S.
  • Patent Number 6,835,257 entitled “Ultrasonic weld pattern for adsorbent containing package” issued on December 28, 2004; and Collette et al., U.S. Patent Number 5,713,399 , entitled “Ultrasonic seaming of abutting strips for paper machine clothing” issued on February 3, 1998.
  • an ultrasonic welding method may be used to form the plurality of welds of anti-stretch treatment 314 through vamp portion 308 of upper 302.
  • the plurality of welds may include one or more groups of welds that are disposed in the material of upper 302 across the longitudinal direction, the lateral direction, or a combination of both.
  • a weld may be configured to primarily reduce stretching along a direction associated with the direction of the weld across the material. In some cases, a weld may additionally assist with at least partially reducing stretching in directions other than the direction of the weld.
  • the plurality of welds may include a first group of welds that is disposed in the material of upper 302 along approximately the longitudinal direction of article 300.
  • the first group of welds include a first weld 500 disposed adjacent to top end portion 310 of upper 302, a second weld 502 disposed forward of first weld 500, a third weld 504 disposed forward of second weld 502, and/or a fourth weld 506 disposed forward of third weld 504.
  • the plurality of welds may also include a second group of welds disposed in the material of upper 302 along approximately the lateral direction of article 300.
  • the second group of welds includes a fifth weld 508 disposed adjacent to fourth weld 506 and towards medial side 16 of article 300.
  • the second group of welds may further include a sixth weld 510 disposed adjacent to fifth weld 508 towards medial side 16, and/or a seventh weld 512 disposed adjacent to sixth weld 510 towards medial side 16 of article 300.
  • the plurality of welds forming anti-stretch treatment 314 includes seven individual welds.
  • a larger or smaller number of welds including a larger or smaller number of welds associated with each of the first group of welds and/or the second group of welds, may be included on upper 302 to form anti-stretch treatment 314.
  • the number of welds in each group of welds of the plurality of welds may depend on the amount of resistance to stretch that is desired for that particular portion of the upper.
  • the welds may be formed in each portion of the upper in any suitable pattern. In some cases, the amount of resistance to stretch that is desired for a particular portion of the upper may determine the number of welds as well as the pattern of welds.
  • the plurality of welds associated with anti-stretch treatment 314 extends through substantially all of vamp portion 308 of upper 302.
  • additional welds may be disposed on other portions of upper 302, including one or more welds disposed in forefoot region 10 of upper 302, adjacent to toe end portion 312 of article 300.
  • FIG. 6 illustrates an enlarged view of anti-stretch treatment 314 on vamp portion 308 of upper 302.
  • the plurality of welds may be arranged in a curved or arced configuration across vamp portion 308 of upper 302 from lateral side 18 to medial side 16 of article 300.
  • the curvature associated with the curved or arced configuration of anti-stretch treatment 314 may be configured to prevent or reduce stretching of upper 302 along the longitudinal direction and/or along the lateral direction.
  • the curved arrangement of the first group of welds disposed in the material of upper 302 along approximately the longitudinal direction may be configured to prevent or reduce stretching of upper 302 along the longitudinal direction and, at least partially, along the lateral direction.
  • the curved arranged of the second group of welds disposed in the material of upper 302 along approximately the lateral direction including fifth weld 508, sixth weld 510, and/or seventh weld 512, may be configured to prevent or reduce stretching of upper 302 along the lateral direction and, at least partially, along the longitudinal direction.
  • the plurality of welds forming anti-stretch treatment 314 may further vary in size or length of the individual welds.
  • the size or length of the welds may depend on the amount of resistance to stretch that is desired for that particular portion of the upper. In an exemplary embodiment, the longer or larger the size of the weld, the greater amount of resistance to stretch may be provided.
  • each of the welds associated with the first group of welds, including first weld 500, second weld 502, third weld 504, and/or fourth weld 506, may be approximately the same size or length.
  • the welds of first group of welds may be approximately 4 cm to 7 cm in length. In other cases, the welds of the first group of welds may be shorter or longer.
  • each of the welds associated with the second group of welds may smaller than the welds of the first group of welds.
  • fifth weld 508 may be larger or longer than sixth weld 510 and seventh weld 512
  • sixth weld 510 may be larger or longer than seventh weld 512.
  • fifth weld 508 may be approximately 4 cm to 6 cm
  • sixth weld 510 may be approximately 2.5 cm to 5 cm
  • seventh weld 512 may be approximately 1 cm to 3 cm.
  • the welds of the second group of welds may be shorter or longer.
  • FIGS. 7 and 8 are schematic views to illustrate the function of anti-stretch treatment 314 on vamp portion 308 to prevent or reduce stretching out of upper 302.
  • FIG. 7 shows upper 302 of article 300 in an original or unstretched configuration.
  • each of the individual welds of the plurality of welds of anti-stretch treatment 314 may be disposed across vamp portion 308 of upper 302 separated by approximately equal distances.
  • first weld 500 is disposed a first distance D1 from second weld 502
  • second weld 502 is disposed a second distance D2 from third weld 504
  • third weld 504 is disposed a third distance D3 from fourth weld 506.
  • fourth weld 506 is disposed a fourth distance D4 from fifth weld 508
  • fifth weld 508 is disposed a fifth distance D5 from sixth weld 510
  • sixth weld 510 is disposed a sixth distance D6 from seventh weld 512.
  • the distance between each of the individual welds of the plurality of welds may be approximately 1 cm to 3 cm. In other embodiments, the distance between welds may be larger or smaller.
  • the plurality of welds forming anti-stretch treatment 314 may be separated by varying distances from each individual weld, including larger or smaller distances.
  • the amount of resistance to stretch that is desired for a particular portion of the upper may determine the distance between each of the individual welds, where a smaller distance between adjacent welds increases the resistance to stretch and a larger distance between the adjacent welds decreases the resistance to stretch at that particular portion of the upper.
  • article 300 in its original or unstretched configuration may be associated with a third width W3 across vamp portion 308 of upper 302 between a midfoot lateral edge 700 and a midfoot medial edge 702.
  • third width W3 across vamp portion 308 may include one or more of the plurality of welds of anti-stretch treatment 314.
  • third width W3 across vamp portion 308 of upper 302 between midfoot lateral edge 700 and midfoot medial edge 702 includes a portion of second weld 502, third weld 504, fourth weld 506, and/or fifth weld 508.
  • Article 300 in its original or unstretched configuration may be further associated with a fourth width W4 across toe end portion 312 in forefoot region 10 of upper 302 between a forefoot lateral edge 704 and a forefoot medial edge 706.
  • fourth width W4 across toe end portion 312 may not include any of the plurality of welds of anti-stretch treatment 314.
  • fourth width W4 across toe end portion 312 of upper 302 between forefoot lateral edge 704 and forefoot medial edge 706 does not include any welds.
  • welds associated with anti-stretch treatment 314 may be configured to extend into toe end portion 312 of upper 302.
  • article 300 in its stressed or stretched configuration may be associated with a fifth width W5 across vamp portion 308 of upper 302 between midfoot lateral edge 700 and midfoot medial edge 702.
  • fifth width W5 across vamp portion 308 may include one or more of the plurality of welds of anti-stretch treatment 314.
  • fifth width W5 across vamp portion 308 of upper 302 between midfoot lateral edge 700 and midfoot medial edge 702 includes a portion of second weld 502, third weld 504, fourth weld 506, and/or fifth weld 508.
  • fifth width W5 may be approximately equal to third width W3 of the same portion of upper 302 in its original or unstretched configuration. In other cases, fifth width W5 may be only slightly or marginally larger than third width W3. In other words, the plurality of welds of anti-stretch treatment 314 disposed across upper 302 prevent or reduce stretching of the material of upper 302 to assist with keeping upper 302 from becoming stretched out or otherwise losing shape or form.
  • article 300 in its stressed or stretched configuration may be further associated with a sixth width W6 across toe end portion 312 in forefoot region 10 of upper 302 between forefoot lateral edge 704 and forefoot medial edge 706.
  • sixth width W6 across toe end portion 312 may not include any of the plurality of welds of anti-stretch treatment 314.
  • sixth width W6 across toe end portion 312 of upper 302 between forefoot lateral edge 704 and forefoot medial edge 706 does not include any welds.
  • sixth width W6 may be larger than fourth width W4 associated with article 300 in its original or unstretched configuration. In other cases, sixth width W6 may be substantially larger than fourth width W4.
  • FIGS. 7 and 8 illustrate an exemplary embodiment of the prevention or reduction of stretching of upper 302 across the lateral direction of article 300, however, the same principles also apply to the prevention or reduction of stretching of upper 302 across the longitudinal direction of article 300.
  • anti-stretch treatment 314 did not include any welds disposed in the material adjacent to toe end portion 312, however, as discussed above, in other embodiments, welds associated with anti-stretch treatment 314 may be configured to extend into toe end portion 312 of upper 302.

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  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Claims (15)

  1. Article de chaussures (300) comportant :
    une tige (302), la tige (302) étant constituée d'un matériau de cuir naturel ou de daim ;
    la tige (302) incluant une portion d'empeigne (308) disposée à travers une région de milieu de pied de l'article de chaussures (300) ; et
    un traitement anti-allongement (314) disposé à travers au moins une portion de la portion d'empeigne (308) ;
    dans lequel le traitement anti-allongement (314) comporte une pluralité de soudures ultrasonores dans le matériau de la tige (302) ;
    dans lequel la pluralité de soudures ultrasonores inclut : (a) un premier groupe de soudures ultrasonores (500-506) qui est disposé à travers la tige (302) le long d'une direction longitudinale afin d'éviter ou de réduire l'allongement de la tige (302) le long de la direction longitudinale et, au moins partiellement, le long d'une direction latérale et (b) un second groupe de soudures ultrasonores (508-512) qui est disposé à travers la tige (302) le long de la direction latérale afin d'éviter ou de réduire l'allongement de la tige le long de la direction latérale et, au moins partiellement, le long de la direction longitudinale.
  2. Article de chaussures (300) selon la revendication 1, dans lequel le premier groupe (500-506) de soudures ultrasonores inclut une première soudure (500), une deuxième soudure (502), une troisième soudure (504) et une quatrième soudure (506) et dans lequel le second groupe (508-512) de soudures ultrasonores inclut une cinquième soudure (508), une sixième soudure (510) et une septième soudure (512).
  3. Article de chaussures (300) selon la revendication 1, dans lequel le traitement anti-allongement (314) s'étend le long de la portion d'empeigne (308) de la tige (302) à partir d'au moins une portion d'extrémité de dessus de la tige (302) adjacente à un orifice d'entrée (306) pour un pied dans une direction allant vers une portion d'extrémité côté orteil de la tige (302) disposée dans une région d'avant-pied de l'article de chaussures (300) ;
    dans lequel le traitement anti-allongement (314) inclut en outre au moins une soudure ultrasonore disposée sur la tige (302) adjacente à la portion d'extrémité côté orteil de la tige (302) dans la région d'avant-pied.
  4. Article de chaussures (300) selon la revendication 1 :
    dans lequel la tige (302) est associée à une première largeur à travers la portion d'empeigne (308) entre un bord latéral de milieu de pied et un bord médian de milieu de pied lorsque l'article de chaussures (300) est dans une configuration non allongée ;
    dans lequel la tige (302) est associée à une seconde largeur à travers la portion d'empeigne (308) entre le bord latéral de milieu de pied et le bord médian de milieu de pied lorsque l'article de chaussures (300) est dans une configuration allongée ; et
    la première largeur étant approximativement égale à la seconde largeur.
  5. Article de chaussures (300) selon la revendication 4, dans lequel la pluralité de soudures ultrasonores du traitement anti-allongement (314) sont disposées sur la portion d'empeigne (308) entre le bord latéral de milieu de pied et le bord médian de milieu de pied.
  6. Article de chaussures (300) selon la revendication 1, dans lequel le premier groupe (500-506) de soudures ultrasonores inclut une première soudure (500), une deuxième soudure (502), une troisième soudure (504) et une quatrième soudure (506), dans lequel les soudures du premier groupe (500-506) de soudures font de 4 cm à 7 cm de longueur ;
    dans lequel le second groupe (508-512) de soudures ultrasonores inclut une cinquième soudure (508), une sixième soudure (510) et une septième soudure (512) et dans lequel chacune des soudures du second groupe (508-512) de soudures ultrasonores est inférieure aux soudures du premier groupe (500-506) de soudures ultrasonores.
  7. Article de chaussures (300) selon la revendication 1, dans lequel le premier groupe (500-506) de soudures ultrasonores inclut une première soudure (500), une deuxième soudure (502) disposée à partir de la première soudure (500) sur une distance D1, une troisième soudure (504) disposée à partir de la deuxième soudure (502) sur une distance D2 et une quatrième soudure (506) disposée à partir de la troisième soudure (504) sur une distance D3, dans lequel chacune des distances D1, D2 et D3 fait de 1 cm à 3 cm ;
    dans lequel le second groupe (508-512) de soudures ultrasonores inclut une cinquième soudure (508) disposée à partir de la quatrième soudure (506) sur une distance D4, une sixième soudure (510) disposée à partir de la cinquième soudure (508) sur une distance D5 et une septième soudure (512) disposée à partir de la sixième soudure (510) sur une distance D6 et dans lequel chacune des distances D4, D5 et D6 fait de 1 cm à 3 cm.
  8. Article de chaussures (300) selon la revendication 4, dans lequel la pluralité de soudures ultrasonores du traitement anti-allongement (314) sont disposées dans un agencement incurvé à travers la portion d'empeigne (308) de la tige (302).
  9. Article de chaussures (300) selon la revendication 1 ou la revendication 8, dans lequel la pluralité de soudures ultrasonores du traitement anti-allongement (314) ont un espacement approximativement uniforme entre chacune des soudures.
  10. Article de chaussures (300) selon la revendication 1, dans lequel le premier groupe (500-506) de soudures ultrasonores inclut une première soudure (500), une deuxième soudure (502), une troisième soudure (504) et une quatrième soudure (506),
    dans lequel chaque élément parmi la première soudure (500), la deuxième soudure (502), la troisième soudure (504) et la quatrième soudure (506) fait de 4 cm à 7 cm de longueur et
    dans lequel le second groupe (508-512) de soudures ultrasonores inclut une cinquième soudure (508) qui fait de 4 cm à 6 cm de longueur, une sixième soudure (510) qui fait de 2,5 cm à 5 cm de longueur et une septième soudure (512) qui fait de 1 cm à 3 cm de longueur.
  11. Article de chaussures (300) selon la revendication 4, dans lequel l'article de chaussures (300) inclut en outre une pluralité d'éléments de brin de traction disposés le long d'au moins un élément parmi un côté latéral (18) et un côté médian (16) de la tige (302) adjacent au traitement anti-allongement (314).
  12. Article de chaussures (300) selon l'une quelconque des revendications qui précèdent, dans lequel l'article de chaussures est une chaussure de planche à roulettes.
  13. Procédé de fourniture d'une résistance à l'allongement à un article de chaussures (300) ayant une tige (302) constituée de matériaux de cuir naturel ou de daim, le procédé comportant :
    le soudage ultrasonore d'une portion du matériau de la tige (302) à travers une portion d'empeigne (308) de la tige (302) afin de former une pluralité de soudures ultrasonores dans le matériau, de sorte que la pluralité de soudures ultrasonores dans le matériau forment un traitement anti-allongement (314),
    dans lequel la pluralité de soudures ultrasonores inclut un premier groupe (500-506) de soudures ultrasonores disposées à travers la tige (302) le long d'une direction longitudinale ;
    dans lequel le premier groupe (500-506) de soudures ultrasonores est conçu pour fournir une résistance à l'allongement dans la direction longitudinale et au moins partiellement dans une direction latérale de la tige (302) ;
    dans lequel la pluralité de soudures ultrasonores inclut en outre un second groupe (508-512) de soudures ultrasonores disposées à travers la tige (302) dans une direction généralement latérale,
    dans lequel le second groupe (508-512) de soudures ultrasonores est conçu pour fournir une résistance à l'allongement dans la direction latérale et au moins partiellement dans la direction longitudinale de la tige (302).
  14. Procédé selon la revendication 13, dans lequel la pluralité de soudures ultrasonores du traitement anti-allongement (314) sont disposées dans un agencement incurvé à travers la portion d'empeigne (308) de la tige (302) et dans lequel le premier groupe (500-506) de soudures ultrasonores inclut une première soudure (500), une deuxième soudure (502), une troisième soudure (504) et une quatrième soudure (506) et dans lequel le second groupe (508-512) de soudures ultrasonores inclut une cinquième soudure (508), une sixième soudure (510) et une septième soudure (512).
  15. Procédé selon la revendication 13, dans lequel le premier groupe (500-506) de soudures ultrasonores inclut une première soudure (500), une deuxième soudure (502) disposée à partir de la première soudure (500) sur une distance D1, une troisième soudure (504) disposée à partir de la deuxième soudure (502) sur une distance D2 et une quatrième soudure (506) disposée à partir de la troisième soudure (504) sur une distance D3, dans lequel chacune des distances D1, D2 et D3 fait de 1 cm à 3 cm ;
    dans lequel le second groupe (508-512) de soudures ultrasonores inclut une cinquième soudure (508) disposée à partir de la quatrième soudure (506) sur une distance D4, une sixième soudure (510) disposée à partir de la cinquième soudure (508) sur une distance D5 et une septième soudure (512) disposée à partir de la sixième soudure (510) sur une distance D6 et dans lequel chacune des distances D4, D5 et D6 fait de 1 cm à 3 cm.
EP14708704.3A 2013-01-23 2014-01-22 Traitement anti-allongement de cuir pour articles chaussants Active EP2906067B1 (fr)

Applications Claiming Priority (2)

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US13/747,536 US20140202034A1 (en) 2013-01-23 2013-01-23 Anti-Stretch Treatment Of Leather For Articles Of Footwear
PCT/US2014/012435 WO2014116629A1 (fr) 2013-01-23 2014-01-22 Traitement anti-allongement de cuir pour articles chaussants

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EP2906067B1 true EP2906067B1 (fr) 2018-11-21

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EP2906067A1 (fr) 2015-08-19
CN104936477A (zh) 2015-09-23
CN104936477B (zh) 2018-01-05
US20140202034A1 (en) 2014-07-24

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