EP3412815A1 - Ébauche de chaussure tridimensionnelle tricotée et son procédé de fabrication avec une machine à tricoter rectiligne à double fontures - Google Patents

Ébauche de chaussure tridimensionnelle tricotée et son procédé de fabrication avec une machine à tricoter rectiligne à double fontures Download PDF

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Publication number
EP3412815A1
EP3412815A1 EP17210709.6A EP17210709A EP3412815A1 EP 3412815 A1 EP3412815 A1 EP 3412815A1 EP 17210709 A EP17210709 A EP 17210709A EP 3412815 A1 EP3412815 A1 EP 3412815A1
Authority
EP
European Patent Office
Prior art keywords
knitting
yarn
knitted
needle bed
front sole
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
EP17210709.6A
Other languages
German (de)
English (en)
Other versions
EP3412815B1 (fr
Inventor
Yu-Lin Li
Yi-Hsing Dou
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.)
Wholeknit International Co Ltd
Original Assignee
Wholeknit International Co Ltd
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Filing date
Publication date
Application filed by Wholeknit International Co Ltd filed Critical Wholeknit International Co Ltd
Publication of EP3412815A1 publication Critical patent/EP3412815A1/fr
Application granted granted Critical
Publication of EP3412815B1 publication Critical patent/EP3412815B1/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
    • A43B1/02—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
    • A43B1/00—Footwear characterised by the material
    • A43B1/14—Footwear characterised by the material made of plastics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/22—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting goods of particular configuration
    • 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
    • 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
    • A43B3/101—Slippers, e.g. flip-flops or thong sandals
    • A43B3/106—Disposable slippers; One-piece 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
    • 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
    • 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
    • D10B2403/0332—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 with gussets folding into three dimensional shape, e.g. seat covers
    • 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
    • D10B2403/0333—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 with tubular portions of variable diameter or distinct axial orientation
    • 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

  • This invention generally relates to a three-dimensional (3D) shoe blank and a manufacturing method thereof. Specifically, the present invention relates to a 3D integral knitted shoe blank made by a double-bed flat knitting machine and a manufacturing method thereof.
  • Knitted shoes are generally made by knitting yarns to form a shoe blank using the knitting machine and further attaching the shoe blank to the shoe sole.
  • the shapes of the shoe blanks formed by knitting are varied with the various types of knitting machines and knitting methods.
  • two-needle-bed flat knitting machines commonly used in the industry generally knit and form a two-dimensional shoe blank in a sheet fabric form first, then the two-dimensional shoe blanks are further processed through seaming techniques to build a three-dimensional shape.
  • due to the delicate and tedious seaming work required it is hard to improve the production efficiency of the knitted shoes.
  • two-dimensional shoe blanks usually only contain the part that covers the foot dorsal, resulting in lack of proper protection for the plantar, and such a two-dimensional shoe blank without the plantar part makes its conjugation and seaming with the shoe sole much more difficult.
  • a 3D shoe blank made by using a double-bed flat knitting machine includes an upper portion, a front sole portion, a rear portion and a heel portion.
  • the upper portion has two technical surfaces knitted from at least a first yarn by skip-needle double-knitting.
  • the front sole portion is connected to the upper portion by a cast-on line and two connection lines, so the front sole portion and the upper portion are connected to form a pocket structure, wherein a portion of the front sole portion corresponding to the upper portion is knitted from at least a second yarn by skip-needle single-knitting.
  • the rear portion is connected to the front sole portion.
  • the heel portion extends from a center rear end of the rear portion.
  • Two opposite sides of the heel portion are respectively connected to a left rear end and a right rear end of the rear portion, so the heel portion and the rear portion are combined to form a 3D rear shoe portion, and two joining lines are formed between the heel portion and the rear portion on the two opposite sides of the heel portion, respectively.
  • connection lines are connected to two ends of the cast-on line and extend outward and obliquely toward an outer side of the 3D shoe blank.
  • the upper portion substantially matches the front sole portion in shape and size.
  • the 3D shoe blank further includes a first upper extension portion and a second upper extension portion connected to two sides of a rear end of the upper portion, respectively.
  • the 3D shoe blank further includes a front sole extension portion connected between the front sole portion and the rear portion.
  • the front sole extension portion partially corresponds to the first upper extension portion and the second upper extension portion.
  • the font sole extension portion includes covered portions masked by the first upper extension portion and the second upper extension portion and an uncovered portion exposed between the first upper extension portion and the second upper extension portion.
  • the covered portions are knitted from the second yarn by skip-needle single-knitting and the uncovered portion is knitted from the second yarn by single-knitting.
  • the 3D shoe blank further includes an extension strap partially connected to the heel portion and extending outward toward the two opposite sides of the heel portion.
  • the 3D shoe blank further includes an extension portion connected between the heel portion and the extension strap, so the extension strap is partially connected to the heel portion by means of the extension portion.
  • the invention provides a method for knitting a three-dimensional (3D) shoe blank by using a double-bed flat knitting machine.
  • the method includes providing at least a first yarn on a front needle bed and a back needle bed of the double-bed flat knitting machine by skip-needle double-knitting and providing at least a second yarn on the back needle bed together to form a cast-on line; knitting the first yarn on the front needle bed and the back needle bed continuing from the cast-on line by loop-transferring and skip-needle double-knitting to form an upper portion; knitting the second yarn on the back needle bed continuing from the cast-on line by skip-needle single-knitting to form a front sole portion, wherein the upper portion and the front sole portion are alternatingly knitted, and the front sole portion is connected to the upper portion to form a pocket structure; knitting continuing from the front sole portion on the front needle bed and the back needle bed to form a rear portion, wherein when forming the rear portion, a plurality of live stitches are preserved on
  • the method further includes: knitting continuing from one side of a rear end of the upper portion by loop-transferring and skip-needle double-knitting to form a first upper extension portion; knitting a third yarn continuing from the other side of the rear end of the upper portion by loop-transferring and skip-needle double-knitting to form a second upper extension portion, wherein the first upper extension portion and the second upper extension portion are spaced apart and substantially symmetric, so the first upper extension portion, the second upper extension portion, and the upper portion are combined to form an upper assembly; and knitting the second yarn on the back needle bed to form a front sole extension portion between the front sole portion and the rear portion, wherein a portion of the front sole extension portion corresponding to the first upper extension portion and the second upper extension portion is knitted by skip-needle single-knitting, and another portion of front sole extension portion not corresponding to first upper extension portion and the second upper extension portion is knitted by single-knitting; the front sole portion and the front sole extension portion are combined to form
  • the rear portion is knitted from the second yarn or another yarn, or the rear portion is knitted from the second yarn together with another yarn.
  • the heel portion is knitted from the second yarn or another yarn, or the heel portion is knitted from the second yarn together with another yarn.
  • the heel portion is knitted from the second yarn or another yarn, or the heel portion is knitted from the second yarn together with another yarn.
  • the method further includes: after the 3D rear shoe portion is formed, double-knitting on the font needle bed and the back needle bed to form an extension strap, wherein the extension strap is partially connected to the heel portion and extends outward toward the two opposite sides of the heel portion.
  • the method further includes: double-knitting from the heel portion on the font needle bed and the back needle bed to form an extension portion connected between the heel portion and the extension strap, so the extension strap is partially connected to the heel portion by means of the extension portion.
  • the 3D shoe blank of the invention is an integral knit fabric without any sewn portion made by a double-bed flat knitting machine, so the seaming work can be omitted to simplify the manufacturing process.
  • the 3D shoe blank of the invention has a strength-enhanced upper portion which is made by double-knitting and is beneficial to sustain the shape of the shoe body and meet the needs of wearers.
  • the method of the invention utilizes an innovative knitting design to form an integral knit fabric just by using a double-bed flat knitting machine without upgrading the knitting machine, so the equipment cost can be effectively reduced and the production efficiency can be improved.
  • a three-dimensional (3D) shoe blank of the invention is an integral knit fabric without any sewn portion and made by using a double-bed flat knitting machine.
  • the 3D shoe blank can be knitted by using a double-bed flat knitting machine with movable cams, which can change the moving direction and drive the actions of the needles.
  • the 3D shoe blank 100 includes an upper portion 112, a front sole portion 122, a rear portion 130, and a heel portion 140.
  • the upper portion 112 has two technical surfaces knitted from at least a yarn (such as the first yarn 10 shown in FIG. 14 ) by skip-needle double-knitting.
  • At least one yarn stated herein is preferably formed by twisting and combining multiple yarns with different characteristic (such as materials, types, shapes, colors and so on), but it is not limited thereto.
  • the front sole portion 122 is connected to the upper portion 112 by a cast-on line 101 and two connection lines 102, 103, so the front sole portion 122 and the upper portion 112 are connected to form a pocket structure.
  • the portion of the front sole portion 122 that corresponds to the upper portion 112 is knitted from at least a yarn (such as the second yarn 20 shown in FIG. 14 ) by skip-needle single-knitting.
  • the front sole portion 122 is preferably knitted by skip-needle single-knitting from at least a yarn that is different from the yarn used for the upper portion 112, but not limited thereto.
  • the front sole portion 122 substantially completely corresponds to the upper portion 112, so the entire front sole portion 122 is knitted by skip-needle single-knitting.
  • the upper portion 112 substantially matches the front sole portion 122 in shape and size.
  • the upper portion 112 and the front sole portion 122 completely overlap each other and are connected to form a pocket-like structure.
  • the front sole portion 122 and the upper portion 112 are connected at outer perimeters, so the cast-on line 101 is located on the front end of the front sole portion 122 and the upper portion 112, and the connection lines 102 and 103 are respectively located at two opposite sides of the front sole portion 122 and the upper portion 112 with respect to the cast-on line 101.
  • the front ends of the front sole portion 122 and the upper portion 112 are connected by the cast-on line 101, while the two connection lines 102 and 103 are connected to two ends of the cast-on line 101 and extend outward and obliquely toward an outer side of the rear portion 130.
  • the connection line 102 is connected to the left end of the cast-on line 101 and extends rearward to connect the left side edge of the upper portion 112 and the left side edge of the front sole portion 122.
  • the connection line 103 is connected to the right end of the cast-on line 101 and extends rearward to connect the right side edge of the upper portion 112 and the right side edge of the front sole portion 122.
  • the upper portion 112 and the front sole portion 122 are connected to form the pocket structure.
  • the rear portion 130 is connected to the front sole portion 122.
  • the rear portion 130 is preferably knitted from at least a yarn by double-knitting.
  • the rear portion 130 can be knitted from the yarns previously used (such as the yarns 10, 20) or another yarn that is additionally introduced.
  • the rear portion 130 can be knitted from the yarns previously used (such as the yarns 10, 20) together with another yarn.
  • the rear portion 130 can be knitted by continuing using the yarn of the upper portion 112, the yarn of the front sole portion 122, the yarns of the upper portion 112 and the front sole portion 122, or another yarn.
  • the rear portion 130 can be knitted by using another yarn together with the yarn of the upper portion 112, the yarn of the front sole portion 122, or the yarns of the upper portion 112 and the front sole portion 122.
  • the heel portion 140 extends from a center rear end of the rear portion 130. Two opposite sides of the heel portion 140 are respectively connected to a left rear end and a right rear end of the rear portion 130, so the heel portion 140 and the rear portion 130 are combined to form a 3D rear shoe portion 100a, and two joining lines 104a and 104b are formed between the heel portion 140 and the rear portion 130 on the two opposite sides of the heel portion 140, respectively.
  • the heel portion 140 is preferably knitted by continuing using the yarn of the rear portion 130 by double-knitting.
  • the 3D shoe blank 100 can be worn on the last and be molded to form a shoe body 1.
  • a thermoplastic yarn can be knitted simultaneously.
  • the thermoplastic yarn can be thermal-curable, by thermal molding, the thermoplastic yarn can be melted to be uniformly distributed over the shoe body 1 and then hardened to support the shape of the shoe body 1.
  • the material of the thermoplastic yarn can be any suitable thermal curable material including, but not limited to, nylon, polyester, acrylic, etc. It is noted that the shoe body 1 can be shaped by other methods, not limited to the use of thermoplastic yarn during the knitting process.
  • the upper portion 112 and the front sole portion 122 can cover from the foot dorsal to the front plantar, while the 3D rear shoe portion 100a constituted by the rear portion 130 and the heel portion 140 covers the lateral portion, the rear plantar, and the heel of the foot.
  • the rear edge of the upper portion 112 and the upper edge of the 3D rear shoe portion 100a i.e. the outer edges of the rear portion 130 and the heel portion 140 together define a shoe opening 1a of the shoe body 1 to allow the foot to enter the interior space enclosed by the shoe body 1.
  • connection lines 102 and 103 on two opposite sides of the front sole portion 122 and the upper portion 112 respectively start from two ends of the cast-on line 101 and extend gradually outward and obliquely toward the 3D rear shoe portion 100a until reaching the shoe opening 1a, so the front sole portion 122 preferably covers from the front plantar toward two opposite front lateral portions.
  • the upper portion 112 can cover the dorsal surface of the front foot
  • the front sole portion 122 covers the front plantar and extends upward to cover the front lateral portions.
  • a portion of the rear portion 130 covers the rear plantar while another portion of the rear portion 130 extends upward to cover the rear lateral portions and extends rearward to cover the heel with the heel portion 140. Therefore, the shoe body 1 formed from the 3D shoe blank 100 of the invention can substantially cover the dorsal, the plantar, the lateral sides, and the heel of the foot.
  • a shoe blank 200 in a second embodiment, includes an upper portion 212, a front sole portion 222, a rear portion 130, and a heel portion 140 and further includes a first upper extension portion 214a, a second upper extension portion 214b, and a front sole extension portion 224.
  • the upper portion 212 has two technical surfaces knitted from at least a yarn (such as the first yarn 10) by skip-needle double-knitting.
  • the front sole portion 222 is connected to the upper portion 212 by a cast-on line 201 and two connection lines 202, 203, so the front sole portion 222 and the upper portion 212 are connected to form a pocket structure.
  • the portion of the front sole portion 222 that corresponds to the upper portion 212 is knitted from at least a yarn (such as the second yarn 20) by skip-needle single-knitting.
  • the first upper extension portion 214a and the second upper extension portion 214b are connected to two sides of a rear end of the upper portion 212, respectively.
  • the front sole extension portion 224 is connected between the front sole portion 222 and the rear portion 130 and partially corresponds to the first upper extension portion 214a and the second upper extension portion 214b.
  • the heel portion 140 extends from a center rear end of the rear portion 130.
  • the two opposite sides of the heel portion 140 are respectively connected to a left rear end and a right rear end of the rear portion 130, so the heel portion 140 and the rear portion 130 are combined to form a 3D rear shoe portion 100a, and two joining lines 104a and 104b are formed between the heel portion 140 and the rear portion130 on the two opposite sides of the heel portion 140, respectively.
  • details of the upper portion 212, the front sole portion 222, the rear portion 130, and the heel portion 140 can refer to the related descriptions of the embodiment of FIG. 1 and will not be elaborated again.
  • the details of the first upper extension portion 214a, the second upper extension portion 214b, and the front sole extension 224 are illustrated.
  • first upper extension portion 214a and the second upper extension portion 214b are spaced apart and connected to two sides of the rear end of the upper portion 212 (such as left rear end and right rear end), so the first upper extension portion 214a, the second upper extension portion 214b, and the upper portion 212 are combined to form an upper assembly 210.
  • one of the upper extension portions 214a and 214b is preferably knitted by continuing knitting the yarn of the upper portion 212, and the other of the upper extension portions 214a and 214b is knitted by using another yarn (such as the third yarn 30 of FIG. 15 ), but not limited thereto.
  • the upper extension portions 214a and 214b can be knitted by using other yarns of the same attribute or amount.
  • the upper extension portions 214a and 214b are preferably symmetric in shape (i.e. the outer appearances thereof are substantially visually symmetric), but not limited thereto.
  • the front sole extension portion 224 is connected to the rear end of the front sole portion 222, so the front sole portion 222 and the front sole extension portion 224 are combined to form a front sole assembly 220.
  • the front sole extension portion 224 partially corresponds to the first upper extension portion 214a and the second upper extension portion 214b.
  • the front sole extension portion 224 includes covered portions 224a and 224b and an uncovered portion 224c.
  • the covered portions 224a and 224b are masked by the first upper extension portion 214a and the second upper extension portion 214b, respectively.
  • the uncovered portion 224c is exposed between the first upper extension portion 214a and the second upper extension portion 214b.
  • the covered portions 224a and 224b preferably respectively match the upper extension portions 224a and 224b in shape and size, while the uncovered portion 224c is located between the covered portions 224a and 224b and not masked by the upper assembly 210.
  • the front sole portion 222 is preferably knitted by skip-needle single-knitting from at least a yarn that is different from the yarn used for the upper portion 212.
  • the covered portions 224a, 224b of the front sole extension portion 224 are preferably knitted continuing from the yarn of the front sole portion 222 (such as the second yarn 20) by skip-needle single-knitting.
  • the uncovered portion 224c of the front sole extension portion 224 is preferably knitted continuing from the yarn of the front sole portion 222 (such as the second yarn 20) by single-knitting.
  • the front sole portion 222 When the front sole portion 222 is connected to the upper portion 212, the upper portion 212 and the front sole portion 222 substantially completely overlap each other, so the upper extension portions 214a and 214b substantially completely overlap the covered portions 224a and 224b of the front sole extension portion 224, respectively, while the uncovered portion 224c of the front sole extension portion 224 is exposed by not overlapping the upper portion 212 and the upper extension portions 214a and 214b.
  • connection line 202 is connected to the left end of the cast-on line 201 and extends rearward to connect the left side edge of the upper portion 212 and the left side edge of the front sole portion 222 and further to connect the left side edge of the first upper extension portion 214a and the left side edge of the covered portion 214a.
  • connection line 203 is connected to the right end of the cast-on line 201 and extends rearward to connect the right side edge of the upper portion 212 and the right side edge of the front sole portion 222 and further to connect the right side edge of the second upper extension portion 214b and the right side edge of the covered portion 214b.
  • the upper assembly 210 and the front sole assembly 220 are connected at outer perimeters to form the pocket structure.
  • the thickness of the 3D shoe blank 200 in FIG. 12 is exaggerated for better understanding. In practical applications, the thickness of the 3D shoe blank 200 varies with the choice of the yarns, the knitting density, etc.
  • the 3D shoe bank 200 can be worn on the last and molded to form a shoe body 2.
  • the upper assembly 210 and the front sole assembly 220 can cover from the foot dorsal to the front plantar, while the 3D rear shoe portion 100a constituted by the rear portion 130 and the heel portion 140 covers the rear lateral portions, the rear plantar and the heel of the foot.
  • the inner edges of the upper portion 212 and the upper extension portions 214a and 214b and the upper edge of the 3D rear shoe portion 100a i.e.
  • connection lines 202 and 203 respectively start from two ends of the cast-on line 201 and extend gradually outward and obliquely toward the 3D rear shoe portion 100a until reaching the shoe opening 2a, so the front sole assembly 220 preferably covers from the front plantar toward two opposite front lateral portions.
  • the upper portion 212 and the upper extension portions 214a and 214b can cover the dorsal surface of the front foot, and the front sole portion 122 and at least a portion of the font sole extension portion 224 (such as the uncovered portion 224c) covers the front plantar, while at least a portion of the font sole extension portion 224 (such as the covered portions 224a, 224b) extends upward to cover the front lateral portions.
  • a portion of the rear portion 130 covers the rear plantar, while another portion of the rear portion 130 extends upward to cover the rear lateral portions and extends rearward to cover the heel with the heel portion 140. Therefore, the shoe body 2 formed from the 3D shoe blank 200 of the invention can substantially cover the dorsal, the plantar, the lateral sides, and the heel of the foot.
  • the 3D shoe blank 100 or 200 is preferably knitted by using the double-bed flat knitting machine with movable cams, which can change the moving direction and drive the actions of the needles.
  • the method for knitting the 3D shoe blank by using a double-bed flat knitting machine includes: providing at least a first yarn (such as the yarn 10) on a front needle bed and a back needle bed of the double-bed flat knitting machine by skip-needle double-knitting and providing at least a second yarn (such as the yarn 20) on the back needle bed together to form a cast-on line (such as 101, 201); knitting the first yarn on the front needle bed and the back needle bed by loop-transferring and skip-needle double-knitting to form an upper portion (such as 112, 212); knitting the second yarn on the back needle bed by skip-needle single-knitting to form a front sole portion (such as 122, 222), wherein the upper portion and the front sole portion are alternatingly knitted, and the front sole portion is
  • the method includes: providing at least a yarn (such as the first yarn 10) on a front needle bed FB and a back needle bed BB by skip-needle double-knitting and providing at least another yarn (such as the second yarn 20) on the back needle bed BB together to form a cast-on line 101 (or 201).
  • a yarn such as the first yarn
  • the first yarn 10 is knitted alternatingly on the front needle bed FB and the back needle bed BB with skipped needles (e.g.
  • the skip-needle knitting refers to a knitting manner that a certain needles of at least one of the front needle bed FB and the back needle bed BB is missed or unused with no stitches thereon.
  • the skip-needle double-knitting refers to a knitting manner that is performed alternatingly on the front needle bed FB and the back needle bed BB with a certain needles thereof missed or unused with no stitches thereon.
  • the skip-needle single-knitting refers to a knitting manner that is performed mainly on the front needle bed FB or the back needle bed BB with a certain needles thereof missed or unused with no stitches thereon.
  • the beginning and the end of the first yarn 10 and the second yarn 20 are preferably knitted on the front needle bed FB.
  • the method further includes: knitting the first yarn 10 on the front needle bed FB and the back needle bed BB continuing from the cast-on line 101 (or 201) by loop-transferring and skip-needle double-knitting to form an upper portion 112 (or 212), and knitting the second yarn 20 on the back needle bed BB continuing from the cast-on line by skip-needle single-knitting to form a front sole portion 122 (or 222), wherein the upper portion 112 (or 212) and the front sole portion 122 (or 222) are alternatingly knitted, and the front sole portion 122 (or 222) is connected to the upper portion 112 (or 212) to form a pocket structure.
  • the first yarn 10 is knitted by skip-needle knitting alternatingly on the front needle bed FB and the back needle bed BB to connect the cast-on line 101 (or 201) and to form the upper portion 112 (or 212).
  • the first yarn 10 is knitted according to the stitches thereof knitted on the front needle bed FB and the back needle bed BB in the previous step S10, so the upper portion 112 (or 212) is knitted alternatingly on the front needle bed FB and the back needle bed BB with skipped needles that are unused (i.e. skip-needle double-knitting).
  • the second yarn 20 is knitted according to the stiches thereof on the back needle bed BB (i.e. two adjacent stitches on the back needle bed with one skipped needle in between), so the front sole portion 122 (or 222) is knitted by skip-needle single-knitting.
  • the cam at the first order 401 is the cam at the third order 403 in the first knitting period P1
  • the cam at the third order 403 is the cam at the first order 401 in the first knitting period P1. Since the cam at the second order 402 is arranged in the middle of the order, no matter it is in the forward or reverse knitting period, the order of the cam at the second order 402 remains the same.
  • the second yarn 20 is knitted on the back needle bed BB by skip-needle single-knitting as described above to form another course of the front sole portion 122 (or 222).
  • the loop-transfer step is performed to change the stitches of the upper portion 112 (or 212) from the non-skipped arrangement to the skipped alternating arrangement. That is, the loops of the upper portion 112 (or 212) previously transferred to the front needle bed FB are transferred back to their original positions on the back needle bed BB.
  • the upper portion 112 (or 212) and the front sole portion 122 (or 222) can be alternatingly knitted until the formation of the upper portion 112 (or 212) and the front sole portion 122 (or 222) is completed.
  • the pocket structure constituted by the upper portion 112 and the front sole portion 122 of the 3D shoe blank 100 in FIG. 1 or the pocket structure constituted by the upper portion 212 and the front sole portion 222 of the 3D shoe blank 200 in FIG. 2 can be formed.
  • a step S12 of forming the upper extension portions 214a and 214b and the front sole extension portion 224 includes: during the first knitting period P1, forward knitting from left to right, by using the cam at the third order 403, the first yarn 10 is knitted by skip-needle knitting alternatingly on the front needle bed FB and the back needle bed BB to form a course of the first upper extension portion 214a.
  • the first upper extension portion 214a is connected to the left rear end of the upper portion 212 by space double-knitting.
  • the step S12 further includes: during the second knitting period P2, reverse knitting from right to left, by using the cam at the first order 401, a third yarn 30 is provided at the left rear end of the upper portion 212 and knitted by skip-needle double-knitting alternatingly on the front needle bed FB and the back needle bed BB to form a course of the second upper extension portion 214b.
  • the second upper extension portion 214b is connected to the right rear end of the upper portion 212 and knitted by space double-knitting as described above.
  • the loop-transfer step is performed to change the stitches of the upper extension portions 214a and 214b from the skipped alternating arrangement to the non-skipped arrangement.
  • the number of the live stitches (such as 31b ⁇ 38b) preserved at the left rear end of the rear portion 130 is preferably the same as the number of the live stitches (such as 31a ⁇ 38a) preserved at the right rear end of the rear portion 130. Therefore, by repeating the double-knitting of the heel portion 140 on the front needle bed FB and the back needle bed BB as described above, the right live stitch 32a of the rear portion 130 is knitted with the heel portion 140 at the location of the stitch 42a at the right border, and the left live stitch 32b of the rear portion 130 is knitted with the heel portion 140 at the location of the stitch 42b at the left border.
  • the extension strap 150 is preferably double-knitted from the yarns (such as 10, 20, and/or 30) used in the previously knitting process or another yarn that is additional introduced. In another embodiment, the extension strap 150 can be double-knitted from the yarns (such as 10, 20, and/or 30) used in the previously knitting process together another yarn.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Of Fabric (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP17210709.6A 2017-06-05 2017-12-27 Ébauche de chaussure tridimensionnelle tricotée et son procédé de fabrication avec une machine à tricoter rectiligne à double fontures Active EP3412815B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW106118557A TWI686523B (zh) 2017-06-05 2017-06-05 二針床橫編機編織的立體鞋胚及其織造方法

Publications (2)

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EP3412815A1 true EP3412815A1 (fr) 2018-12-12
EP3412815B1 EP3412815B1 (fr) 2022-02-02

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EP (1) EP3412815B1 (fr)
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WO2018089501A1 (fr) * 2016-11-08 2018-05-17 Nike Innovate C.V. Articles à fil pouvant être traité thermiquement tricoté d'un seul tenant
US10842228B2 (en) * 2016-11-22 2020-11-24 Wholeknit International Co., Ltd. Method for manufacturing shoe embryo tailored from tubular fabric and associated shoe embryo

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JP6153402B2 (ja) * 2013-07-03 2017-06-28 株式会社島精機製作所 フットウェアの製造方法
TWI633851B (zh) * 2013-09-13 2018-09-01 島精機製作所股份有限公司 足面覆蓋物及足面覆蓋物之編織方法
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EP2805638A1 (fr) * 2012-01-20 2014-11-26 Shima Seiki Mfg., Ltd Chaussure, et procédé de tricotage pour un tissu tricoté
EP2875745A1 (fr) * 2012-07-17 2015-05-27 Shima Seiki Mfg., Ltd. Empeigne de chaussure et procédé de production d'empeigne de chaussure

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Also Published As

Publication number Publication date
US20180343955A1 (en) 2018-12-06
TWI686523B (zh) 2020-03-01
ES2906759T3 (es) 2022-04-20
TW201903235A (zh) 2019-01-16
EP3412815B1 (fr) 2022-02-02

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