WO2018222703A1 - Tige tressée pour chaussure à axe de talon fini - Google Patents

Tige tressée pour chaussure à axe de talon fini Download PDF

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Publication number
WO2018222703A1
WO2018222703A1 PCT/US2018/035113 US2018035113W WO2018222703A1 WO 2018222703 A1 WO2018222703 A1 WO 2018222703A1 US 2018035113 W US2018035113 W US 2018035113W WO 2018222703 A1 WO2018222703 A1 WO 2018222703A1
Authority
WO
WIPO (PCT)
Prior art keywords
braided
heel
axis
footwear
lateral side
Prior art date
Application number
PCT/US2018/035113
Other languages
English (en)
Inventor
Robert M. Bruce
Eun Kyung Lee
James Y. YOO
Chikao ICHIKAWA
Michihiro Ichikawa
Original Assignee
Nike Innovate C.V.
Nike, Inc.
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 C.V., Nike, Inc. filed Critical Nike Innovate C.V.
Priority to CN201880035149.XA priority Critical patent/CN110678096B/zh
Priority to EP18733416.4A priority patent/EP3582644B1/fr
Publication of WO2018222703A1 publication Critical patent/WO2018222703A1/fr

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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
    • A43B1/02—Footwear characterised by the material made of fibres or fabrics made therefrom
    • A43B1/04—Footwear characterised by the material made of fibres or fabrics made therefrom braided, knotted, knitted or crocheted
    • 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
    • A43B23/024—Different layers of the same 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
    • A43B23/0255—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
    • A43B23/04—Uppers made of one piece; Uppers with inserted gussets
    • A43B23/042—Uppers made of one piece
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D8/00—Machines for cutting, ornamenting, marking or otherwise working up shoe part blanks
    • A43D8/02—Cutting-out
    • A43D8/04—Stamping-out
    • A43D8/08—Combined stamping-out and bonding, e.g. high frequency electric current being applied between cutting edge and work support
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
    • D04C1/06—Braid or lace serving particular purposes
    • D04C1/08—Tulle fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C3/00—Braiding or lacing machines
    • D04C3/40—Braiding or lacing machines for making tubular braids by circulating strand supplies around braiding centre at equal distances
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C3/00—Braiding or lacing machines
    • D04C3/48—Auxiliary devices
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/04—Heat-responsive characteristics
    • D10B2401/041—Heat-responsive characteristics thermoplastic; thermosetting
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/03—Shape features
    • D10B2403/033—Three dimensional fabric, e.g. forming or comprising cavities in or protrusions from the basic planar configuration, or deviations from the cylindrical shape as generally imposed by the fabric forming process
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2501/00—Wearing apparel
    • D10B2501/04—Outerwear; Protective garments
    • D10B2501/043—Footwear

Definitions

  • a braided structure that forms a footwear upper.
  • a braided footwear upper is constructed on a circular braiding machine and finished to have a heel axis with a closed seam that appears to be continuously braided.
  • Aspects herein generally relate to a system for forming a braided footwear upper having at least a medial side and a lateral side, and a toe end and a heel end.
  • the braided footwear is made from a number of yarns that are braided together.
  • the heel axis finishing system includes an alignment mechanism that orients the medial side of the upper and the lateral side of the braided upper at the heel end. The lateral side and the medial side come together at the heel and form a heel axis.
  • a joining mechanism is associated with the alignment mechanism. The joining mechanism couples at least one braided yarn from the medial side to at least one braided yarn from the lateral side along the heel axis.
  • the alignment mechanism includes a jig that aligns the medial side and the lateral side at the heel axis.
  • the joining mechanism is a sonic welding apparatus that severs and joins the yarns along the heel axis to present a finished seam. By joining the yarns as they are severed, when they are properly aligned, the heel area transitions from the medial side to the lateral side with an appearance of seamlessness.
  • an article of footwear has a unitary, braided upper.
  • the upper has a medial side, a lateral side, a toe end, and a heel end opposite the toe end.
  • the braided upper has a joined heel axis along a joinder line where the lateral side and the medial side meet at the heel end.
  • the joinder line forms a heel axis that, in one aspect, has at least one braided yarn from the medial side coupled to at least one braided yarn from the lateral side.
  • the heel axis presents a smooth and appealing transition from the medial side to the lateral side.
  • FIG. 1 depicts a schematic view of an exemplary braiding machine
  • FIG. 2 depicts a schematic top view of an exemplary braiding machine, illustrating the carriages and rotor metals
  • FIG. 3 depicts a view similar to FIG. 2, but with the rotor metals moving the carriages;
  • FIG. 4 depicts a view similar to FIG. 3, but showing the completion of the exemplary movement of FIG. 3 ;
  • FIG. 5 depicts an article of footwear, in accordance with aspects herein;
  • FIG. 6 depicts a perspective view of an exemplary braiding machine having a lead bobbin or spool in a first position, in accordance with aspects herein;
  • FIG. 7 depicts a perspective view of an exemplary braiding machine having a lead spool in a second position, in accordance with aspects herein;
  • FIG. 8 depicts a perspective view of an exemplary braided upper, shown with an unfinished heel area, in accordance with aspects herein;
  • FIG. 9 depicts a perspective view of the exemplary braided upper of FIG. 8, shown in a finishing jig, in accordance with aspects herein;
  • FIG. 9A depicts an enlarged view of a portion of FIG. 9
  • FIG. 9B depicts an enlarged portion of the tail of the braided upper in the heel area
  • FIG. 10 depicts a perspective view of the exemplary braided upper of FIG. 8, shown with a finished heel area, in accordance with aspects herein;
  • FIG. 10A depicts an enlarged view of a portion of FIG. 10
  • FIG. 10B depicts a side view of the portion of FIG. 10A.
  • FIG. 11 depicts a flow chart of an exemplary method of forming an article of footwear having a braided upper with a finished heel axis, in accordance with aspects herein.
  • Aspects herein provide a system for forming a braided footwear upper having at least a medial side and a lateral side, and a toe end and a heel end.
  • the braided footwear is made from a number of yarns that are braided together.
  • the heel axis finishing system includes an alignment mechanism that orients the medial side of the upper and the lateral side of the braided upper at the heel end. The lateral side and the medial side come together at the heel and form a heel axis.
  • a joining mechanism is associated with the alignment mechanism. The joining mechanism couples at least one braided yarn from the medial side to at least one braided yarn from the lateral side along the heel axis.
  • the alignment mechanism includes a jig that aligns the medial side and the lateral side at the heel axis.
  • the joining mechanism is a sonic welding apparatus that severs and fuses the yarns along the heel axis to present a finished seam. By fusing the yarns as they are severed, when they are properly aligned, the heel area transitions from the medial side to the lateral side with an appearance of seamlessness.
  • an article of footwear has a unitary, braided upper.
  • the upper has a medial side, a lateral side, a toe end, and a heel end opposite the toe end.
  • the braided upper has a joined heel axis along a joinder line where the lateral side and the medial side meet at the heel end.
  • the joinder line forms a heel axis that, in one aspect, has at least one braided yarn from the medial side coupled to at least one braided yarn from the lateral side.
  • the heel axis presents a transition from the medial side to the lateral side.
  • Braiding is a process of interlacing or interweaving three or more yarns diagonally to a product axis in order to obtain a thicker, wider, or stronger product or in order to cover (overbraid) some profile.
  • Interlacing diagonally means that the yarns make an angle with the product axis, which can be between 1 ⁇ and 89 ⁇ but is usually in the range of 30 ⁇ - 80 ⁇ . This angle is called the braiding angle.
  • Braids can be linear products (ropes), hollow tubular shells, or solid structures (one, two, or three-dimensional textiles) with constant or variable cross-sections, and of closed or open appearance.
  • the yarns used for braiding may be formed of different materials having different properties.
  • the properties that a particular yarn will impart to an area of a braided component partially depend upon the materials that form the yarn.
  • Cotton for example, provides a softer product, natural aesthetics, and biodegradability.
  • Elastane and stretch polyester each provide substantial stretch and recovery, with stretch polyester also providing recyclability.
  • Rayon provides high luster and moisture absorption.
  • Wool also provides high moisture absorption, in addition to insulating properties and biodegradability.
  • Nylon is a durable and abrasion-resistant material with relatively high strength.
  • Polyester is a hydrophobic material that also provides relatively high durability.
  • a yarn may be a monofilament or a multifilament.
  • the yarn may also include separate filaments that are each formed of different materials.
  • the yarn may include filaments that are each formed of two or more different materials, such as a bicomponent yarn with filaments having a sheath-core configuration or two halves formed of different materials.
  • braided structures can be formed as tubular braids on a braiding machine, such as a radial, axial, or lace braiding machine.
  • a braiding machine such as a radial, axial, or lace braiding machine.
  • a lace braiding machine can be found in Ichikawa, EP 1 486 601, granted May 9, 2007, entitled “Torchon Lace Machine,” and EP No. 2 657 384, published Oct. 30, 2013, entitled “Torchon Lace Machine,” the entireties of which are hereby incorporated by reference.
  • the upper portion of an exemplary braiding machine 10 is shown in FIG. 1.
  • Braiding machine 10 includes a plurality of spools 12. In some embodiments, the spools 12 carry the yarn 14 selected for braiding.
  • the yarns 14 from individual spools are selectively interlaced or intertwined with one another by the braiding machine 10. This interlacing or intertwining of strands forms a braided structure 16, as further described below.
  • Each of the spools 12 is supported and constrained by a track 18 about the circumference of the braiding machine 10.
  • Each spool 12 has a tensioner 20 (shown schematically in FIG. 1) that operates, along with a roller 22, to maintain a desired tension in the yarns 14 and the braided structure 16.
  • the braiding point is defined as the point or area where yarns 14 consolidate to form braid structure 16.
  • the distance between yarns 14 from different spools 12 diminishes. As the distance between yarns 14 is reduced, the yarns 14 intermesh or braid with one another in a tighter fashion and are pulled linearly by roller 22.
  • each spool 12 is carried and supported by a carriage 26.
  • Each spool 12 is movable about the circumference of the track 18 by rotor metals 28.
  • each of the rotor metals 28 can be moved clockwise or counterclockwise.
  • each rotor metal is not intermeshed with the adjacent rotor metal. Instead, each rotor metal 28 may be selectively independently movable. As can be seen by comparing FIG. 2 to FIG.
  • the braiding machine 10 is programmable such that the individual rotor metals 28 rotate the carriages 26, and thus the spools 12, to move them about the circumference of the track 18.
  • the movement of spools 12 may be preprogrammed to form particular shapes, designs, and thread densities of a braided component or portions of a braided component.
  • various braid configurations may be formed.
  • Such an exemplary braiding machine may form intricate braid configurations including both jacquard and non-jacquard braid configurations or geometries. Such configurations and geometries offer design possibilities beyond those offered by other textiles, such as knitting.
  • the size of braiding machine 10 may be varied. It should be understood that the braiding machine 10 shown and described is for illustrative purposes only. In some aspects, braiding machine 10 may be able to accept 144 carriages, although other sizes of braiding machines, carrying different numbers of carriages and spools, is possible and is within the scope of this disclosure. By varying the number of carriages and spools within a braiding machine, the density of the braided structure as well as the size of the braided component may be altered.
  • an exemplary article of footwear 100 is depicted as having a first end 102 and a second end 104.
  • the first end 102 may correspond to a portion of the article of footwear 100 adapted to cover the toes of a wearer
  • the second end 104 may correspond to a portion of the article of footwear 100 adapted to cover a heel or ankle end of a wearer.
  • the article of footwear 100 is generally braided from a first end 102 to (towards) a second end 104.
  • the article of footwear 100 is generally braided from a toe end to an ankle end.
  • the first end 102 of the article of footwear 100 and the second end 104 of the article of footwear 100 may be reversed, such that the article of footwear is braided from an ankle end to a toe end of the article of footwear.
  • the first end 102 of the article of footwear 100 generally corresponds to a first plane of braiding 106
  • the second end 104 of the article of footwear generally corresponds to a second plane of braiding 108.
  • the first plane of braiding 106 is generally placed in an X-Y orientation
  • the second plane of braiding 108 is generally placed in an X-Z orientation.
  • first plane of braiding 106 and second plane of braiding 108 are considered to be within the scope of this disclosure.
  • first plane of braiding 106 may be placed in an X-Z orientation
  • second plane of braiding 108 may be placed in a Y-Z orientation or an X-Y orientation.
  • important aspect of the planes of braiding is that the first plane of braiding 106 and the second plane of braiding 108 are perpendicular to each other, such that a "Mobius twist" is performed to rotate from the first plane of braiding 106 to the second plane of braiding 108.
  • first plane of braiding 106 and the second plane of braiding 108 are not perpendicular are considered to be within the scope of this disclosure.
  • first plane of braiding 106 and the second plane of braiding 108 may be offset 45 degrees from one another, or may be offset any other amount between 0 and 90 degrees from each other.
  • the article of footwear will have the greatest resistance to stretch in a direction that aligns to the plane of braiding used to manufacture that portion of the article of footwear.
  • the amount of "Mobius twist" performed changes the functional characteristics of the article of footwear created by the methods described herein.
  • the "Mobius twist” is generally performed at a transition point 110 of the article of footwear, which generally refers to a point of the article of footwear in which the first plane of braiding 106 and second plane of braiding 108 intersect.
  • the first plane of braiding 106 may transition to the second plane of braiding 108 instantaneously at the transition point 110.
  • the transition point 110 may be located between 2 and 6 inches from the first end 102 of the article of footwear.
  • the first plane of braiding 106 may gradually morph into the second plane of braiding 108.
  • the transition point 110 may be more accurately referred to as a transition section 112, wherein the transition section 112 has a beginning transition point 114a and an ending transition point 114b. Similar to the transition point 110, the beginning transition point 114a may be located between 2 and 6 inches from the first end 102 of the article of footwear.
  • the discussion with respect to FIG. 5 has focused on manufacturing the exemplary article of footwear 100 that comprises a first section 101 braided with a plurality of yarns in a first direction, which corresponds to the first plane of braiding 106.
  • the exemplary article of footwear comprises a second section 103 braided with a plurality of yarns in a second direction, which corresponds to the second plane of braiding 108.
  • the exemplary article of footwear 100 further comprises the transition section 112 positioned between the first section end 102 and the second end 104, wherein the transition section 112 further comprises the beginning transition point 114a proximate the first section 101 and the ending transition point 114b proximate the second section 103, wherein the plurality of yarns of the transition section 112 linearly transitions from the first direction, or the first plane of braiding 106, to the second direction, or second plane of braiding 108.
  • transitioning linearly refers to the angle of the yarns rotating smoothly between perpendicular directions, the first direction and the second direction, over the length of the transition section 112.
  • the plurality of yarns of the transition section 112 may transition in a non- linear manner, in which the angle of the yarns rotate quickly in one part of the transition section 112, and rotate less quickly in another part of the transition section 112.
  • FIG. 6 an automated braiding machine 200, similar to those shown in FIGS. 1-4, is depicted.
  • the article of footwear 100 is shown as being braided beginning at first end 102.
  • the automated braiding machine has a braid ring assembly 202 and a plurality of spools 204 associated with the braid ring assembly 202.
  • the plurality of spools 204 may be integrally formed into the braid ring assembly 202, or provided separately and then coupled to the braid ring assembly 202.
  • the plurality of spools 204 may contain strands of braiding material, such as yarn, although it is generally desirable for the entirety of the plurality of spools 204 to contain strands of braiding material.
  • One of the plurality of spools 204 has been shaded, and is referred to as the "lead spool" throughout this disclosure, for the purposes of tracking the positioning of the plurality of spools 204 on the braid ring assembly 200.
  • the braid ring assembly 202 may have a first set of positions 210 (FIG. 6) and a second set of positions 212 (FIG.
  • the second set of positions 212 is obtained by rotating the spools on the braid ring assembly 202 from the first set of positions 210.
  • the amount of rotation of spools on the braid ring assembly 202 is completely variable based on the desired properties of the article of footwear.
  • the second set of positions 212 may be rotated 45 degrees from the first set of positions 210, or the second set of positions 212 may be rotated 90 degrees from the first set of positions 210.
  • other intermediate amounts of rotation are considered to be within the scope of this disclosure.
  • the lead spool can be tracked from the first set of positions 210 as shown in FIG. 6, to a second set of positions 212 as shown FIG. 7, which depicts that the braid ring assembly has rotated approximately 90 degrees.
  • the article of footwear 100 is braided, beginning with a first end 102, with the plurality of spools 204 on the braid ring assembly 202 in the first set of positions 210.
  • braiding the article of footwear 100 with the braid ring assembly 202 in the first set of positions 210 results in a first end 102 of the article of footwear 100 being braided in a first braiding plane 106, and wherein braiding the article of footwear 100 with the braid ring assembly 202 in the second set of positions 212 results in the second end 104 of the article of footwear being braided in a second braiding plane 108.
  • FIG. 7 the automated braiding machine 200 is depicted as manufacturing an article of footwear 100, after the "Mobius twist" has been performed.
  • the article of footwear depicted in FIG. 7 has been fully braided in the first plane of braiding 106, has passed the transition point 110, and is now braiding in the second plane of braiding 108, meaning that the positioning of the spools on the braid ring assembly 202 are in the second set of positions 212.
  • FIG. 7 depicts the automated braiding process after reaching and completely passing through the transition point 110 of the article of footwear 100, or in other words, after the "Mobius twist" has been performed.
  • FIG. 8 An exemplary article of footwear 100 is shown in FIG. 8, after removal from the braiding machine.
  • the article of footwear 100 is shown disposed on a last 300 in an expanded condition that conforms to the shape of the last 300.
  • the article of footwear 100 has the first end 102 in the toe area and the second end 104 in the heel area.
  • the article of footwear 100 includes a lateral side 302 and an opposite medial side 304 extending from the first end 102 to the second end 104.
  • the article of footwear 100 in an unfinished state, also includes a tail 306 adjacent the second end 104.
  • the article of footwear 100 can be braided, for example, as described above with respect to FIGS. 5-7. For simplicity, the braiding is depicted in FIG.
  • the tail 306 in one aspect, is braided in a vertical plane as described with respect to second braid plane 108 of FIG. 5.
  • the tail 306 is formed by braiding together the yarns forming the lateral side 302 and the medial side 304.
  • the intersection of the lateral side 302 and the medial side 306 forms a heel axis 308.
  • the tail 306 is removed in a finishing process, described more fully below.
  • jig 310 has a base 312 that supports, and is coupled to, a first back plate 314 and a second back plate 316.
  • first and second back plates 314, 316 are coupled to base plate 312 such that they are spaced from one another, forming a slot 318.
  • first and second back plates 314, 316 are coupled to base plate 312 such that they are allowed to move inward and outward to close or open slot 318, within a groove 317, as indicated by arrows 320.
  • first back plate 314 and second back plate 316 are moveable with respect to base 312, it should be understood that only one of first back plate 314 or second back plate 316 could be moveable.
  • first and second back plates 314, 316 could also be contoured to match a contour along the heel axis 308.
  • First back plate 314, in one aspect, has a sonic welding horn 322 that extends into the slot 318.
  • Second back plate 316 has a corresponding sonic welding anvil 324 that extends into the slot in a location to mate with the sonic welding horn 322.
  • the sonic welding horn 322 and sonic welding anvil 324 are shown schematically, and are coupled to a sonic welding apparatus (not shown).
  • the jig 310 serves to support the article of footwear 100 of FIG. 8 such that the tail 306 is aligned with, and extends through, the slot 318.
  • the jig 310 operates as an alignment mechanism to consistently position the tail 306 with respect to the base 312 and the first and second back plates 314, 316.
  • FIG. 9B shows the tail 306 with the lateral side 302 crossing over, and braided with, the medial side 304.
  • the seam area 308 where the lateral side 302 is braided together with the medial side 302 could extend further, as shown in FIG. 9A.
  • the tail 306 is placed through slot 318 to extend between sonic welding horn 322 and sonic welding anvil 324.
  • tension may be applied to tail 306, as indicated by arrow 326.
  • First back plate 314 and second back plate 316 can then be moved toward one another, until sonic welding horn 322 and sonic welding anvil 324 engage the tail 306.
  • first back plate 314 and second back plate 316 remain stationary, while the sonic welding horn 322 and sonic welding anvil 324 move toward and away from one another within their respective back plates 314, 316.
  • the sonic welding horn 322 and the sonic welding anvil 324 are thus able to selectively engage the braided yarns of tail 306.
  • the sonic welding apparatus can be activated to join the yarns of the braided article of footwear 100 along heel axis 308.
  • the sonic welding horn 322 and sonic welding anvil 324 operate to join and sever the yarns of the braided article of footwear 100 along the braid axis 308.
  • FIG. 10 illustrates the article of footwear 100 after the yarns from the lateral side 302 are joined with the yarns from the medial side 304 along the heel axis 308.
  • the heel axis 308 presents a seam 330 that allows the lateral side 302 and the medial side 304 to join while appearing to be a continuous braided structure.
  • FIG. 10B shows a fused zone 332 that extends along seam 330.
  • the fused zone 332 represents the joining of the yarns on the lateral side 302 fused to the yarns on the medial side 304 to prevent the braid from unraveling.
  • the braid pattern of the lateral side 302 in one aspect, mates with the braid pattern of the medial side 304.
  • the braided yarns from the lateral side 302 appear to be continuous with the braided yarns from the medial side 304.
  • the heel axis is a strong seam that does not present a raised seam that needs further processing, such as requiring a taped seam.
  • a unitary upper is formed that allows forces from the lateral side 302 to be transmitted to the medial side 304, and vice versa.
  • a method 400 for manufacturing a braided upper for an article of footwear is shown in FIG. 11.
  • the method includes positioning a braided upper having a heel axis into a finishing jig, as shown at block 402.
  • the method continues at block 404 by positioning the heel axis adjacent an alignment mechanism associated with the jig.
  • the method continues at block 406 by activating a joining mechanism associated with the jig to join the yarns associated with a medial side of the upper to the yarns associated with a lateral side of the upper along the heel axis.
  • the method continues by severing any yarns exterior of the joint formed by the joined yarns along the heel axis.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)

Abstract

La présente invention concerne un système de formation d'une tige de chaussure tressée. La tige a un côté médial (304) et un côté latéral (302), ainsi qu'une extrémité côté orteils (102) et une extrémité côté talon (104). La chaussure tressée (100) est constituée d'un certain nombre de fils (14) tressés ensemble. Le système de finition de l'axe de talon comprend un mécanisme d'alignement qui oriente le côté médial et le côté latéral au niveau de l'extrémité côté talon. Le côté latéral et le côté médial se rejoignent au niveau du talon de façon à former un axe de talon (308). Un mécanisme d'assemblage est associé au mécanisme d'alignement. Le mécanisme d'assemblage couple au moins un fil tressé provenant du côté médial à au moins un fil tressé provenant du côté latéral le long de l'axe de talon. Grâce à l'assemblage des fils alignés à mesure qu'ils sont coupés, la zone de talon passe du côté médial au côté latéral en conservant une apparence d'uniformité.
PCT/US2018/035113 2017-05-30 2018-05-30 Tige tressée pour chaussure à axe de talon fini WO2018222703A1 (fr)

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US20180343958A1 (en) 2018-12-06
CN110678096B (zh) 2022-12-09
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CN110678096A (zh) 2020-01-10

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