EP3308666B1 - Tige de chaussure et procédé de fabrication de tige de chaussure - Google Patents

Tige de chaussure et procédé de fabrication de tige de chaussure Download PDF

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Publication number
EP3308666B1
EP3308666B1 EP16811477.5A EP16811477A EP3308666B1 EP 3308666 B1 EP3308666 B1 EP 3308666B1 EP 16811477 A EP16811477 A EP 16811477A EP 3308666 B1 EP3308666 B1 EP 3308666B1
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EP
European Patent Office
Prior art keywords
knitted fabric
knitting
heel
shoe upper
width direction
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
EP16811477.5A
Other languages
German (de)
English (en)
Other versions
EP3308666A1 (fr
EP3308666A4 (fr
Inventor
Isao Yumiba
Yoshinori Shimasaki
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.)
Shima Seiki Mfg Ltd
Original Assignee
Shima Seiki Mfg Ltd
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Publication date
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Publication of EP3308666A1 publication Critical patent/EP3308666A1/fr
Publication of EP3308666A4 publication Critical patent/EP3308666A4/fr
Application granted granted Critical
Publication of EP3308666B1 publication Critical patent/EP3308666B1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B9/00—Footwear characterised by the assembling of the individual parts
    • A43B9/02—Footwear stitched or nailed through
    • 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
    • A43B23/0245—Uppers; Boot legs characterised by the constructive form
    • A43B23/025—Uppers; Boot legs characterised by the constructive form assembled by stitching
    • 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
    • A43B23/0295—Pieced uppers
    • 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
    • D04B1/10—Patterned fabrics or articles
    • D04B1/102—Patterned fabrics or articles with stitch pattern
    • D04B1/108—Gussets, e.g. pouches or heel or toe portions
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/0036—Footwear characterised by the shape or the use characterised by a special shape or design
    • 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
    • D04B1/24—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 wearing apparel
    • 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
    • D10B2501/00—Wearing apparel
    • D10B2501/04—Outerwear; Protective garments
    • D10B2501/043—Footwear

Definitions

  • the present invention relates to a shoe upper constituted by a knitted fabric, and a method for manufacturing the shoe upper.
  • Shoes include a shoe upper with a sole cover that covers the sole of a wearer, and an instep cover that covers a portion on the instep side of the wearer.
  • an outer sole made of a synthetic resin or the like is attached to the sole cover of the shoe upper.
  • an attempt has been made to manufacture a shoe upper that is lightweight and superior in foot comfort by configuring the shoe upper mostly of a knitted fabric.
  • Patent Document 1 attempted to configure an instep cover that is part of a shoe upper with one sheet of knitted fabric to manufacture a shoe with good productivity.
  • the instep cover of Patent Document 1 is used to manufacture a shoe upper, the instep cover is joined by sewing to a separately prepared sole cover to complete the shoe upper.
  • Patent Document 1 WO 2015/037540A
  • the instep cover comprises a heel cover portion that covers a region from an Achilles tendon to a heel of the wearer and a body portion excluding the heel cover portion.
  • a stitch in a vicinity of an end of the heel cover portion and a stitch at an end of the body portion are connected at a position of a boundary line of the heel cover portion and the body portion to form the instep cover three-dimensionally.
  • Prior art document US 2 047 724 A discloses a knitted foot wear and a method of making the same, whereby the foot wear includes an elongated sole portion and upper portions, said upper portions having edges secured together in the heel.
  • the present invention was made in view of the above-described circumstances, and it is an object of the present invention to provide a shoe upper for which a sewing operation is easy and that is superior in productivity, and a method for manufacturing the same.
  • a shoe upper made of knitted fabric having the feature as set forth in claim 1.
  • a preferred embodiment of the shoe upper is stated in claim 2.
  • an aspect of the present invention relates to a shoe upper made of a knitted fabric with a sole cover configured to cover an entire sole portion of a wearer, and an instep cover configured to cover a portion on an instep side of the wearer, forming a foot insertion opening, the shoe upper including:
  • the shoe upper may include a sewn portion in which the first line and the second line are sewn.
  • an aspect of the present invention relates to a shoe upper manufacturing method of knitting a shoe upper with a sole cover configured to cover a sole portion of a wearer, and an instep cover configured to cover a portion on an instep side of the wearer, forming a foot insertion opening, using a flat knitting machine provided with at least a pair of a front and a back needle bed.
  • the shoe upper includes : a heel knitted fabric that has a dimension from a heel-side portion of the foot insertion opening to a heel-side portion of the sole cover, and is configured to wrap around a portion ranging from an Achilles tendon to the heel of the wearer; and a body knitted fabric that is a portion other than the heel knitted fabric, and the method includes :
  • a knitting width of the left portion and a knitting width of the right portion are adjusted so that a left edge portion in the knitting width direction of the left portion and a right edge portion in the knitting width direction of the right portion are in a straight line when, after knitting the shoe upper is complete, the heel knitted fabric is folded into two portions at the center in its knitting width direction, and the left portion and the right portion of the body knitted fabric are laid on each other in a thickness direction.
  • inside widening may be performed at at least two positions with a central portion in the knitting width direction interposed therebetween to increase a knitting width of the heel knitted fabric.
  • step ⁇ is followed by the following step ⁇ :
  • the first line and the second line for joining by sewing the left and right knitted fabrics at positions on the sole cover extend in one straight line.
  • Straight sewing can be performed easily, and in the shoe upper of the present invention, sewing for forming the shoe upper in a three-dimensional shape does not need to be performed in a portion other than the straight first line and second line. Accordingly, the shoe upper of the present invention can be manufactured with good productivity.
  • the shoe upper manufacturing method of the present invention it is possible to knit a shoe upper in which the sewing position for forming the shoe upper in a three-dimensional shape is straight. Moreover, since there is one sewing position for forming the knitted shoe upper in a three-dimensional shape, it is possible to improve the productivity of the shoe upper.
  • the heel knitted fabric By performing inside widening in the step ⁇ of knitting the heel knitted fabric, it is possible to knit the heel knitted fabric in a three-dimensional shape. As a result, the shape of the heel knitted fabric of the shoe upper can conform to the shape of the heel of wearers .
  • Embodiment 1 will describe an example of manufacturing a shoe upper 1 shown in FIGS. 1A, 1B , 2A, and 2B .
  • the shoe upper 1 is a knitted fabric knitted using, at least partially, a knitting yarn that includes heat-fusible yarn, and the shoe upper 1 is provided with a sole cover 2 that covers the sole portion of a wearer, and an instep cover 3 that covers a portion on the instep side of the wearer, forming a foot insertion opening 4.
  • An outer sole (not shown) made of resin or the like may be attached to the outer side of the sole cover 2 of the shoe upper 1. Note here that, for convenience of description, FIGS. 2A and 2B show the sole cover 2 so that it can be seen from the side, but in reality, the sole cover 2 can hardly be seen from the side.
  • the foot insertion opening 4 of the shoe upper 1 of the present example extends toward the toe side in a slit shape, and a tongue 5 is formed at a cut end of the slit. Furthermore, eyelets 6 through which a shoelace is passed are formed at positions on the instep cover 3 that are located on both sides of the slit.
  • the tongue 5 and the eyelets 6 are configurations provided as an option.
  • the shoe upper 1 having the above-described configuration is a knitted fabric that is knitted using a flat knitting machine, and has a three-dimensional shape that conforms to the shape of the foot of wearers. Particularly, the heel-side portion and the toe side portion of the shoe upper 1 have a three-dimensional shape that conforms to the shape of the foot.
  • the shoe upper 1 has a three-dimensional shape because, as shown in the later-described shoe upper manufacturing method, the shoe upper 1 is divided into a heel knitted fabric 10 and a body knitted fabric 11, and the heel knitted fabric 10 is knitted and then the body knitted fabric 11 is knitted. In FIGS.
  • fine lines denote knitting width directions (directions in which stitches are lined up in the longitudinal direction of the needle beds during knitting) of the heel knitted fabric 10 and the body knitted fabric 11.
  • the directions orthogonal to the fine lines are wale directions.
  • the tongue 5 is also a knitted fabric, but its knitting width direction is omitted in FIGS. 1A, 1B , 2A, and 2B .
  • the heel knitted fabric 10 is a knitted fabric that covers a portion ranging from the Achilles tendon to the heel of the wearer.
  • a set up portion 10s of the heel knitted fabric 10 is arranged on the sole cover 2 side in a state in which the set up portion 10s is folded into two portions at the center in its knitting width direction (see FIG. 1B ) so that the two portions butt against each other. More specifically, the central portion (see the bold arrow) of the set up portion 10s at which it was folded into two portions is arranged on the heel side, and both end portions (see the white arrow) are arranged on the toe side.
  • a line (second line L2) obtained by folding the set up portion 10s into two portions so that the two portions butt against each other extends straight toward the toe.
  • a knitting end portion 10e of the heel knitted fabric 10 constitutes a part, on the heel side, of the foot insertion opening 4 that is formed on the upper side of the instep cover 3 (see FIG. 1A ) .
  • the heel knitted fabric 10 is knitted in a substantially trapezoidal shape such that its set up portion 10s is wider than the knitting end portion 10e. Accordingly, on the instep cover 3 side shown in FIG. 1A , a left edge portion 10a and a right edge portion 10b, which extend from the vicinity of the foot arch at the boundaries between the sole cover 2 and the instep cover 3 to the foot insertion opening 4, are both inclined toward the heel side. Furthermore, on the sole cover 2 side shown in FIG. 1B , the left edge portion 10a (right edge portion 10b) extending leftward (rightward) from the central portion of the sole cover 2 is inclined toward the heel side.
  • the heel knitted fabric 10 may be formed in a substantially triangular shape. Also in this case, both edge portions 10a and 10b are inclined toward the heel side.
  • the body knitted fabric 11 is knitted to follow the left edge portion 10a and the right edge portion 10b of the heel knitted fabric 10, and a state is realized in which, at respective positions on these edge portions 10a and 10b, end stitches in the knitting width direction of the heel knitted fabric 10 and end stitches in the wale direction of the body knitted fabric 11 are connected to each other .
  • the heel knitted fabric 10 and the body knitted fabric 11 are supported with respect to each other, and the heel-side portion of the shoe upper 1 is retained in a three-dimensional shape.
  • a left portion 11L of the body knitted fabric 11 that follows the left edge portion 10a of the heel knitted fabric 10, and a right portion 11R of the body knitted fabric 11 that follows the right edge portion 10b of the heel knitted fabric 10 are, as shown in FIG. 1A , seamlessly contiguous to each other at the position on the instep cover 3 side that is near the toe.
  • the portion in which the left portion 11L and the right portion 11R are not contiguous to each other forms, together with the knitting end portion 10e of the heel knitted fabric 10, the foot insertion opening 4.
  • connection portion toe side joint portion 13
  • the connection portions (later-described first line L1) other than this toe side joint portion 13 are connected to each other by sewing rather than knitting.
  • the toe side joint portion 13 is formed by bringing edge portions on a terminal side in the wale direction of the body knitted fabric 11 close to the center in the knitting width direction of the body knitted fabric 11 and joining the edge portions to each other. More specifically, by joining the edge portion on the terminal side in the wale direction of the left portion 11L of the body knitted fabric 11 to the edge portion on the terminal side in the wale direction of the right portion 11R of the body knitted fabric 11 sequentially from the toe side, the toe side joint portion 13 is formed. With this toe side joint portion 13, the front end portion of the body knitted fabric 11 is retained in a shape such that it wraps around the toes of wearers.
  • the shoe upper 1 of the present example is provided with a sewn portion 14 in which the left and right knitted fabrics are connected by sewing to each other at a position on the sole cover 2.
  • At least a part of the shoe upper 1 (the heel knitted fabric 10 and the body knitted fabric 11), namely, the entire shoe upper 1 in the present embodiment is made with a thick knitting pattern knitted using front and back needle beds.
  • the method for knitting a thick knitting pattern is not particularly limited.
  • knitting methods using front and back needle beds such as rib knitting and tubular knitting, can be used in a suitable combination to knit a thick knitting pattern.
  • Such a knitting pattern is thicker and tougher than a knitting pattern (for example, a plain pattern) knitted only using either of front and back needle beds.
  • the front and back needle beds can be used to knit a thick knitting pattern because, as shown in a knitting step that will be described later with reference to FIG. 3 , the left portion 11L and the right portion 11R are knitted while being lined up in the longitudinal direction of the needle beds.
  • the above-described shoe upper 1 can be manufactured through the knitting step of knitting the heel knitted fabric 10 and the body knitted fabric 11, a sewing step of sewing the first line L1 and the second line L2 that are arranged on the sole cover 2 side, and a heat treatment step of subjecting the shoe upper 1 to a heat treatment.
  • a two-bed flat knitting machine with at least a pair of a front and a back needle bed is used to knit the heel knitted fabric 10, and then knit the body knitted fabric 11.
  • the knitted fabrics 10 and 11 can also be knitted using a four-bed flat knitting machine.
  • FIG. 3 is a schematic view illustrating a knitting procedure of a knitting method.
  • white arrows denote the direction in which knitting advances (the same as the wale direction)
  • horizontal lines in the portions 10 and 11 denote the knitting width direction (direction in which stitches are lined up).
  • capital letters are added to positions important for knitting.
  • the heel knitted fabric 10 is knitted (corresponding to a step ⁇ ). Specifically, the set up portion 10s (see points A to B) of the heel knitted fabric 10 is knitted, and a plurality of stitch rows are knitted to follow the set up portion 10s in the wale direction. During the knitting, the knitting width of the stitch rows is reduced gradually. The resultant stitches that are lined up in the left edge portion 10a (see points A to C) in the knitting width direction of the heel knitted fabric 10, and the resultant stitches that are lined up in the right edge portion 10b (see points B to D) are held on the needle beds.
  • the knitting end portion 10e (see points C to D), which serves as the terminal portion in the wale direction of the heel knitted fabric 10, is shorter than the set up portion 10s.
  • the knitting end portion 10e is to be removed from the needle beds using a binding off treatment or the like.
  • inside widening when knitting the heel knitted fabric 10, it is also possible to perform inside widening at at least two positions with the central portion in the knitting width direction of the heel knitted fabric 10 interposed therebetween.
  • inside widening is performed at two positions near the center in the knitting width direction, and at two positions located outward, in the knitting width direction, of the two positions, these positions being denoted in the drawing by chain double-dashed lines .
  • Inside widening refers to a knitting operation of forming a widening stitch within the knitting width of a knitted fabric, and a well-known inside widening operation for forming, for example, a split stitch or a pick up stitch is available.
  • inside widening during knitting the heel knitted fabric 10 makes the heel knitted fabric 10 swollen, and enables the shape of the heel knitted fabric 10 to conform better to the shape of the foot.
  • step ⁇ knitting the left portion 11L of the body knitted fabric 11 that follows the left edge portion 10a of the heel knitted fabric 10 is started from the point C, and knitting the right portion 11R of the body knitted fabric 11 that follows the right edge portion 10b, in the knitting width direction, of the heel knitted fabric 10 is started from the point D (corresponding to a step ⁇ ).
  • the left portion 11L and the right portion 11R are knitted using different yarn feeders.
  • the left portion 11L and the right portion 11R of the body portion 11 are knitted in a state in which they are lined up side by side on the needle beds, so that the toe side of the body portion 11 is tapered (step ⁇ ).
  • the knitting width of the left portion 11L and the knitting width of the right portion 11R are adjusted so that the left edge portion 11a in the knitting width direction of the left portion 11L, and the right edge portion 11b in the knitting width direction of the right portion 11R are in a straight line when, after knitting the shoe upper 1 is complete, the heel knitted fabric 10 is folded into two portions at the center in its knitting width direction, and the left portion 11L and the right portion 11R of the body knitted fabric 11 are laid on each other in the thickness direction (see FIGS.
  • the width and height of the shoe upper 1 are also taken into consideration.
  • the left portion 11L and the right portion 11R need not be symmetrical, but the left portion 11L and the right portion 11R preferably have different knitting widths to conform to the shape of the foot.
  • the first line L1 which is obtained by bringing the left portion 11L and the right portion 11R into butting contact with each other, may be shifted to the left or right from the center of the sole cover 2 as long as the first line L1 is straight.
  • the tongue 5 and the eyelets 6 are also formed. Knitting the tongue 5 is started between the left portion 11L and the right portion 11R (see points G to H), and when it is knitted in a certain length, then the tongue 5 is connected to the body portion 11. Furthermore, the eyelets 6 can be formed by narrowing or the like.
  • the body portion 11 that is knitted in the step ⁇ is knitted so as to be tapered toward the toe, as described above. Specifically, the body portion 11 is tapered by gradually reducing the knitting width of the body portion 11 using flechage knitting or the like. As a result of such knitting being performed, a left curved edge portion 11c (see points I to K) that is formed on the toe side of the left portion 11L and a right curved edge portion 11d (see points J to K) that is formed on the toe side of the right portion 11R are held on the needle beds.
  • the knitting width of the body knitted fabric 11 is once reduced and then increased, so that the toe side portion has a three-dimensional shape .
  • the knitting width of the body knitted fabric 11 is reduced so that stitches at the end portions in the knitting width direction are lined up on the line connecting points a and b, which is denoted by chain double-dashed line, and the knitting width of the body knitted fabric 11 is increased so that the line connecting the points a and b are connected to the line connecting points c and b.
  • the toe side portion of the body knitted fabric 11 takes on such a shape that it is curled toward the far side in the drawing, and the sewing operation to be performed later is facilitated.
  • the left curved edge portion 11c which is formed on the toe side of the left portion 11L
  • the right curved edge portion 11d which is formed on the toe side of the right portion 11R
  • the method for joining the two curved edge portions 11c and 11d is not particularly limited. Examples thereof can include a method for joining the two curved edge portions 11c and 11d by knitting a knitted fabric for connecting the two curved edge portions 11c and 11d, and a method for directly joining by knitting stitches of the two curved edge portions 11c and 11d.
  • a method for joining the two curved edge portions 11c and 11d by knitting a knitted fabric for connecting the two curved edge portions 11c and 11d
  • a method for directly joining by knitting stitches of the two curved edge portions 11c and 11d In the former case, first, all stitches except for the stitch at the boundary-side end of the left curved edge portion 11c are moved to the boundary side, and all stitches except for the stitch at the boundary-side end of the right curved edge portion 11d are also moved to the boundary side.
  • the joining may be performed by directly overlapping the stitch at the boundary-side end of the left curved edge portion 11c and the stitch at the boundary-side end of the right curved edge portion 11d, and forming a new stitch on this double stitch.
  • a shoe upper 1 shown in FIGS. 1A, 1B , 2A, and 2B can be knitted in which its heel-side portion and toe-side portion are retained in a three-dimensional shape, and are made with a thick knitting pattern.
  • the first line L1 and the second line L2 of the shoe upper 1 are not yet joined to each other, and thus the following sewing step is performed.
  • the first line L1 which is obtained by bringing the left edge portion 11a and the right edge portion 11b, in the knitting width direction, of the body knitted fabric 11 into butting contact with each other
  • the second line L2 which is obtained by folding the set up portion 10s of the heel knitted fabric 10 into two portions so that the two portions butt against each other, are joined by sewing to each other.
  • the first line L1 and the second line L2 to be sewn are lined up in a straight line as shown in FIGS. 2A and 2B .
  • straight sewing can be performed easily without requiring a special skill of the sewing operator, the shoe upper 1 of the present example is superior in productivity.
  • sewing for forming the shoe upper 1 in a three-dimensional shape does not need to be performed in the portion other than the sewn portion 14, and thus the shoe upper 1 of the present example is superior in productivity also in this respect.
  • a reinforcement member or a decorative member may also be attached to the shoe upper 1 using sewing. Just to be on the safe side, sewing a reinforcement member or a decorative member is different from the sewing for forming the shoe upper 1 in a three-dimensional shape.
  • the shoe upper 1 on which the sewing was performed is preferably fit into a shoe last, and is subjected to a heat treatment.
  • a heat treatment By melting, in the heat treatment, the heat-fusible yarn of the knitting yarn used to knit the shoe upper 1, it is possible to obtain a shoe upper 1 with a three-dimensional shape.
  • the shoe upper 1 is tough and has appropriate flexibility since stitches are fused due to the heat-fusible yarn.
  • the shoe upper 1 subjected to the heat treatment is constituted with a thick knitting pattern and the sole cover 2 is already integrated, the shoe upper 1 can be used as is.
  • a decorative member, a reinforcement member, an inner sole, an outer sole, or the like may also be attached to the shoe upper 1.
  • the shoe upper 1 of the present example has a three-dimensional shape conforming to the shape of the foot, and thus an inner sole, an outer sole, or the like can be attached easily.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Knitting Of Fabric (AREA)

Claims (5)

  1. Tige de chaussure (1) constituée d'un tissu tricoté avec un couvre-semelle (2) configuré pour recouvrir une partie entière de la semelle d'un porteur, et un couvre-cou-de-pied (3) configuré pour recouvrir une partie sur un côté du cou-de-pied du porteur, formant une ouverture d'insertion d'un pied (4), la tige de chaussure (1) étant caractérisée par :
    un tissu tricoté de talon (10) qui est tricoté de sorte que sa partie de montage (10s) soit plus large que sa partie d'extrémité de tricotage (10e), le tissu tricoté de talon (10) étant formé selon une forme telle qu'elle s'enroule autour d'une partie allant d'un tendon d'Achille à un talon du porteur dans laquelle la partie de montage (10s) est disposée sur le côté du couvre-semelle (2) dans un état dans lequel la partie de montage (10s) est pliée en deux parties au niveau d'un centre dans une direction de largeur de tricotage de la partie de montage (10s) de sorte que les deux parties aboutent l'une contre l'autre, et la partie d'extrémité de tricotage (10e) constitue une partie, côté talon, de l'ouverture d'insertion du pied (4) ;
    un tissu tricoté de corps (11) qui est tricoté pour suivre une partie de bord gauche (10a) et une partie de bord droit (10b), dans la direction de la largeur de tricotage, du tissu tricoté de talon (10), et constitue une partie de la tige de chaussure (1) autre que le tissu tricoté de talon (10) ; et
    une partie de joint côté orteils (13) qui est formée en amenant des parties de bord sur un côté terminal dans une direction de colonne du tissu tricoté de corps (11) près d'un centre, dans la direction de la largeur de tricotage, du tissu tricoté de corps (11) et en joignant les parties de bord les unes aux autres, et conserve une forme d'une partie d'extrémité avant du tissu tricoté de corps (11) de sorte qu'elle s'enroule autour des orteils du porteur,
    dans lequel une première ligne (L1) obtenue en amenant une partie de bord gauche (11a) et une partie de bord droit (11b), dans la direction de la largeur de tricotage, du tissu tricoté de corps (11) en contact bout à bout les uns avec les autres, et une deuxième ligne (L2) obtenue en pliant la partie de montage (10s) du tissu tricoté de talon (10) en deux parties de sorte que les deux parties qui aboutent l'une contre l'autre sont en ligne droite, la première ligne (L1) et la deuxième ligne (L2) étant formées au niveau de positions sur le couvre-semelle (2).
  2. Tige de chaussure (1) selon la revendication 1, comprenant :
    une partie cousue (14) dans laquelle la première ligne (L1) et la deuxième ligne (L2) sont cousues.
  3. Procédé de fabrication d'une tige de chaussure (1) destiné au tricotage d'une tige de chaussure (1) avec un couvre-semelle (2) configuré pour recouvrir une partie entière de semelle d'un porteur, et un couvre-cou-de-pied (3) configuré pour recouvrir une partie sur un côté cou-de-pied du porteur, formant une ouverture d'insertion de pied (4), en utilisant une machine à tricoter à plat munie d'au moins une paire de lits d'aiguilles avant et arrière, la tige de la chaussure (1) comportant : un tissu tricoté de talon (10) qui a une dimension allant d'une partie côté talon de l'ouverture d'insertion du pied (4) à une partie côté talon du couvre-semelle (2), et qui est configuré pour s'enrouler autour d'une partie allant d'un tendon d'Achille à un talon du porteur par une partie de montage (10s) qui est agencée sur le côté du couvre-semelle (2) dans un état dans lequel la partie de montage (10s) est pliée en deux parties au niveau d'un centre dans une direction de largeur de la partie de montage (10s) ; et un tissu tricoté de corps (11) qui est une partie autre que le tissu tricoté de talon (10), le procédé étant caractérisé par :
    une étape α de tricotage du tissu tricoté de talon (10) dont la partie de montage (10s) est plus large que sa partie d'extrémité de tricotage (10e) ;
    une étape β de début de tricotage d'une partie gauche (11L) du tissu tricoté de corps (11) qui suit une partie de bord gauche (10a), dans une direction de largeur de tricotage, du tissu tricoté de talon (10), et de début de tricotage d'une partie droite (11R) du tissu tricoté de corps (11) qui suit une partie de bord droit (10b), dans la direction de la largeur de tricot, du tissu tricoté de talon (10) ;
    une étape γ de tricotage de la partie gauche (11L) et de la partie droite (11R) dans un état dans lequel elles sont alignées côte à côte sur le lit d'aiguilles, et formant un côté orteils effilé du tissu tricoté de corps (11) ; et
    une étape δ de jonction d'une partie incurvée de bord gauche (11c) formée du côté orteils de la partie gauche (11L) et d'une partie incurvée de bord droit (lld) formée du côté orteils de la partie droite (11R) séquentiellement à partir d'une frontière entre les parties incurvées de bord gauche et droit (11c, 11d),
    dans lequel, à l'étape γ, une largeur de tricotage de la partie gauche (11L) et une largeur de tricotage de la partie droite (11R) sont ajustées de sorte qu'une partie de bord gauche (11a) dans la direction de la largeur de tricotage de la partie gauche (11L) et une partie de bord droit (11b) dans la direction de la largeur de tricotage de la partie droite (11R) sont en ligne droite quand, après que le tricotage de la tige de la chaussure (1) est achevé, le tissu tricoté de talon (10) est plié en deux parties au niveau d'un centre dans sa direction de la largeur de tricotage, et la partie gauche (11L) et la partie droite (11R) du tissu tricoté de corps (11) sont posées l'une sur l'autre dans une direction de l'épaisseur.
  4. Procédé de fabrication d'une tige de chaussure (1) selon la revendication 3,
    dans lequel, à l'étape α, après que la partie de montage (10s) du tissu tricoté de talon (10) est tricotée, un élargissement intérieur est effectué au niveau d'au moins deux positions avec une partie centrale dans la direction de la largeur de tricotage interposée entre elles pour augmenter une largeur de tricotage du tissu tricoté de talon (10).
  5. Procédé de fabrication d'une tige de chaussure (1) selon la revendication 3 ou 4,
    dans lequel l'étape δ est suivie d'une étape ε de jonction par couture d'une première ligne (L1) obtenue en amenant la partie de bord gauche (11a) et la partie de bord droit (11b), dans la direction de largeur de tricotage, du tissu tricoté de corps (11) en contact bout à bout l'une avec l'autre, et une deuxième ligne (L2) obtenue en pliant la partie de montage (10s) du tissu tricoté de talon (10) en deux parties de sorte que les deux parties aboutent l'une contre l'autre.
EP16811477.5A 2015-06-15 2016-06-03 Tige de chaussure et procédé de fabrication de tige de chaussure Active EP3308666B1 (fr)

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JP2015119997 2015-06-15
PCT/JP2016/066676 WO2016204002A1 (fr) 2015-06-15 2016-06-03 Tige de chaussure et procédé de fabrication de tige de chaussure

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JP (1) JP6419335B2 (fr)
KR (1) KR101954655B1 (fr)
CN (1) CN107708467B (fr)
TW (1) TW201701789A (fr)
WO (1) WO2016204002A1 (fr)

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Publication number Publication date
KR20180011808A (ko) 2018-02-02
TW201701789A (zh) 2017-01-16
KR101954655B1 (ko) 2019-03-06
WO2016204002A1 (fr) 2016-12-22
US20180184755A1 (en) 2018-07-05
JPWO2016204002A1 (ja) 2017-11-30
CN107708467A (zh) 2018-02-16
JP6419335B2 (ja) 2018-11-07
CN107708467B (zh) 2020-04-14
EP3308666A1 (fr) 2018-04-18
EP3308666A4 (fr) 2019-02-13

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