JP2006000530A - Stretch boot without seam, and production method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stretch boot which is inexpensively manufactured and has excellent outer appearance without seams, and to provide a production method thereof. <P>SOLUTION: In the stretch boot 1 without the seams, an outside fabric 11a, including a part 2 for covering an instep; and a part 3 upper than the part 2, is knitted from thread but is not sewed. Unsewed cylindrical fabric 11 with the parts 2 for covering the insteps arranged at both end parts are folded at a part near the center of its length, so as to be a double cylindrical body. Stretch preventing pieces 5 for determining the shape of the part for covering the instep are sewed onto the fabric 11b which is positioned at an inner side out of the end parts superimposed by folding. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The invention according to the claims relates to a seamless stretch boot that fits a leg when worn and a method for manufacturing the same.

  In recent years, stretch boots have been attracting attention because of the stretchability of the fabric and the effect of making the legs look clean by fitting the legs when worn. The conventional stretch boots 21, 22, and 23 shown in FIG. 3 are formed by cutting a flat fabric with a nail mold along the legs and then sewing them to cover the upper part of the foot and the upper leg part. And a cylindrical portion covering the.

Further, for example, the stretch boot according to Patent Document 1 is provided with a breathable and waterproof sheet on the arch portion of the boot in order to release moisture in the boot.
Utility Model Registration No. 3063508

  The conventional stretch boots 21, 22, and 23 shown in FIG. 3 are sewn after the fabric is cut, so the seams (seams) 21 a, 22 a, 23a. Moreover, also in the boot described in the said literature 1, the sewing part for a ventilation waterproof sheet is made at least between the outer side surface of the upper part, and the arch part. If there is a seam in a portion visible from the outside, it is generally not preferable in appearance.

  In addition, in order to cut the fabric, it is necessary to create a cutting die for each design and size, and there are wastes in the fabric, which wastes labor and cost for manufacturing. It was.

  In order to solve the above-described problems, it is an object of the present invention to provide a stretch boot that can be manufactured at a lower cost and that is preferable in appearance, and a method for manufacturing the same.

  The seamless stretch boot according to claim 1 is characterized in that the outer fabric of the portion covering the instep and the portion above it is a non-sewn one knitted from yarn.

  According to such a stretch boot, since there is no seam (seam) in the outer fabric, the appearance is excellent. In addition to the simple and clean silhouette, there are also manufacturing advantages that require fewer parts.

  The seamless stretch boot described in claim 2 is formed into a double tubular body by folding a non-sewn tubular fabric having a portion covering the instep at both ends into the vicinity of the center of the length. In addition, an extension stop piece that defines the shape of the portion covering the instep is sewn to the fabric located on the inner side of the both ends overlapped by folding.

  According to such a stretch boot, since the upper part is manufactured by folding the tubular fabric into a double shape, the heat retention effect is high, and the strength is high and the shape is not easily lost. In addition, since the end portion of the fabric does not appear at the edge portion of the upper end that is annular, the appearance is good. Furthermore, despite the fact that the non-stretching piece is sewn on the part that covers the instep, the fabric on the other side that is not sewn covers the outside of the fabric on which it is sewn. The seam does not appear and the appearance is excellent.

The method for producing a seamless stretch boot according to claim 3 is:
1) Form a tubular fabric with parts that cover the instep at both ends, without sewing,
2) At one side of the above-mentioned both ends, an extension stopper piece that defines its shape is attached to the part covering the instep,
3) Fold the cylindrical fabric around the center of its length to make a double cylindrical body with the end on the side to which the stretch stop piece is attached inside,
4) A shoe sole is attached to the opening edge of the both ends overlapped by folding.

  According to such a method for manufacturing a stretch boot, a stretch boot having a heat-retaining property and a high strength and a good appearance at the upper end edge by folding the tubular fabric into a double layer (such as those described in claim 2). ) Can be manufactured smoothly.

  The manufacturing method of the stretch boot described in claim 4 relates to the above-described tubular fabric, and the portion covering the back of the foot only on the side where the stretch stop piece is attached among the portions covering the back of the foot at both ends. It is characterized in that it is formed in a plurality of flat shapes rather than in a cylindrical shape, and is sewn together with the expansion stopper piece to form a cylindrical shape when the expansion stopper piece is attached.

  According to such a manufacturing method, it is possible to reliably and easily perform the work of attaching the stretch stop piece to the portion covering the instep (step 2 of claim 3). This is because the stretch-stopping piece can be firmly attached by sewing, and the piece can be sewn to the flat portion so that the sewing work can be easily performed. In this way, the end portion on the side where the stretch stop pieces are sewn together becomes the inner side of the double cylindrical body according to 3) of claim 3, so that a stretch boot as shown in claim 2, for example, where no seam appears on the outer side, This is preferable in terms of heat retention, strength, appearance, and the like.

  The manufacturing method according to claim 5 is characterized in that the tubular fabric is formed without sewing by knitting from a thread.

  According to such a manufacturing method, it is possible to manufacture stretch boots of knitted fabric. As we form a tubular fabric by knitting yarn, it is not necessary to make several types of drills for different designs and sizes, and there is no chipping of the fabric, and we can put a knitted pattern on the fabric. There are advantages such as. It should be noted that knitting a tubular fabric from yarn and forming it without sewing is a flat knitting machine having a three-dimensional non-sewing knitting function called a) by hand knitting or b) WHOLEGARMENT (registered trademark) or the like. It can be used, or c) by the method of claim 6.

  The manufacturing method according to claim 6, wherein the tubular fabric is reciprocated with a carriage using a V bed flat knitting machine having a needle bed on the front and back, and the knitting needle on the front needle bed and the back needle bed The knitting needle is knitted and formed by rotating the knitting yarn around the knitting needle and alternately feeding the knitting yarn.

  According to such a manufacturing method, the cylindrical fabric used in 1) of claim 3 can be obtained smoothly and efficiently without sewing. In order to impart the necessary shape to the tubular fabric, the knitting width may be increased or decreased by changing the number of knitting needles held at the operating position during knitting (Japanese Patent Laid-Open No. 60-194154). reference).

Since the seamless stretch boot according to claim 1 has no seams, the number of parts is small, and the appearance and silhouette are clean.
The stretch boot of claim 2 has the advantages that in addition to the effect of claim 1, it has a high heat retention effect, is strong and does not easily lose its shape, and has an excellent appearance at the top edge and the attachment portion of the stretch-stopper. is there.

The seamless stretch boot manufacturing method according to claim 3 can smoothly manufacture the stretch boot having the advantages as described above.
In the stretch boot manufacturing method according to the fourth aspect of the present invention, it is possible to reliably and easily attach the stretch stop piece without impairing the appearance.
According to the manufacturing method of the fifth aspect, the fabric is not wasted (yield is good), and a pattern can be formed on the stitches.
If it is the manufacturing method of Claim 6, the cylindrical fabric used as a manufacturing raw material can be obtained smoothly and efficiently without sewing.

  An embodiment of the invention will be described with reference to FIGS. FIG. 1 is a perspective view of a stretch boot 1 having no joints, and FIGS. 2A to 2E are explanatory diagrams relating to a method for manufacturing the stretch boot 1.

  The seamless stretch boot 1 is formed by integrally forming an upper part 2 covering the upper part of the foot and a cylindrical part 3 covering the upper leg part with a non-sewn tubular fabric 11, and opening the upper part 2. The shoe sole 4 is attached to the edge 12. The cylindrical fabric 11 is folded back to be a ring at the upper edge 1a. The stretch stop piece 5 is attached to the toe portion 1b of the inner fabric (reference numeral 11b in FIG. 2) by adhesion and sewing by hot pressing. The outer fabric (reference numeral 11a in FIG. 2) has no seams.

  The manufacturing method of such a seamless stretch boot 1 includes the following procedures 1) to 5) along FIG.

Procedure 1): First, with a V bed flat knitting machine (not shown), a tubular fabric 11 having upper portions 2a and 2b at both ends is knitted across the tubular portion 3 (FIG. 2 (a)). The upper portion 2a is a portion that becomes the outer side and is knitted in a cylindrical shape, while the upper portion 2b that becomes the inner side is knitted on the upper side and the heel side to be knitted in a planar shape.
The V-bed flat knitting machine has a needle bed on the front and rear, reciprocates the carriage, and alternately turns the knitting yarn around the knitting needle on the front needle bed and the knitting needle on the rear needle bed. It is an apparatus for knitting a cylindrical knit by supplying yarn. The number of knitting needles maintained at the operating position is changed by a program so that the upper part 2 and the cylinder part 3 fit the leg, and the knitting is performed while increasing or decreasing the knitting width. For example, a flat knitting machine having a three-dimensional non-sewing knitting function called WHOLEGARMENT (registered trademark) or the like may be used. Of course, the tubular fabric can be formed by hand-knitting.
As described above, the cylindrical fabric 11 is three-dimensionally formed without sewing, and there is no need to cut the fabric, so no chips are generated.

Step 2): A pair of stretch-preventing pieces 5a and 5b that define the shape of the portion covering the upper of the foot are bonded to the upper part 2b knitted separately on the right and left sides by hot pressing (FIGS. 2B and 2C). )).
The upper portion 2b can be knitted into a cylindrical shape without being divided into two pieces, and a single curved piece can be bonded by hot pressing without dividing the stretch preventing pieces 5 into left and right sides. However, by dividing the upper part 2b into left and right sides and knitting it into a flat shape, it becomes easy to heat press the stretch stop piece 5, and it is necessary to prepare several kinds of press stands for different designs and sizes. Therefore, the manufacturing cost can be reduced and the labor can be saved.

Step 3): The left and right extension stopper pieces 5a and 5b are sewn together with the upper portion 2b on the upper side and the heel side, respectively (FIG. 2 (d)).
Since the stretch stop piece 5 is sewn together with the fabric, it can be firmly integrated with the fabric.

Step 4): The tubular fabric 11 is folded back with the upper portion 2b (fabric 11b) side inward, and the upper portions 2a and 2b are overlapped so that the seamless upper portion 2a is on the front side.
The seam of the upper part 2b, which can be formed by sewing the left and right of the stretch stop piece 5 together with the fabric, is covered with the upper part 2a of the outer fabric 11a without the seam by folding the cylindrical fabric 11 inward and outward. So the appearance is not impaired. In addition, since the end of the fabric does not appear on the upper edge 1a of the boot 1, the appearance is good, and it is not necessary to sew the double fabric at the upper end, so that the stretchability of the fabric is impaired by the stitches (threads). Nor.

  Procedure 5): The shoe sole 4 is attached to the opening edge 12 of the overlapped upper 2.

1 is a perspective view of a seamless stretch boot 1 according to an embodiment of the invention. 2A to 2E are explanatory views showing a method for manufacturing a seamless stretch boot 1 as an embodiment of the invention. 3A to 3C are perspective views showing conventional stretch boots 21, 22, and 23, respectively.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Seamless stretch boot 1a Upper edge 1b Toe part 2 Back part 3 Cylinder part 4 Shoe bottom 5 Stretch stopper 11 Cylindrical cloth 11a Outer cloth 11b Inner cloth 12 Open edge

Claims (6)

  A seamless stretch boot characterized in that the outer fabric of the part covering the upper part of the foot and the part above it is a non-sewn thing knitted from yarn. A non-sewn tubular fabric with a part covering the instep at both ends is folded into a double tubular body by folding around the center of the length,
A stretch boot with no seams, characterized in that an expansion stop piece that defines the shape of the part covering the instep is sewn to the fabric located inside the two ends overlapped by folding. 1) Form a tubular fabric with parts that cover the instep at both ends, without sewing,
2) At one side of the above-mentioned both ends, an extension stopper piece that defines its shape is attached to the part covering the instep,
3) Folding the cylindrical fabric near the center of its length, to make a double cylindrical body with the end on the side to which the stretch stop piece is attached inside,
4) A method for producing a seamless stretch boot, characterized in that a shoe sole is attached to the opening edge of the both ends overlapped by folding. The above-mentioned tubular fabric is formed by forming the portions covering the insteps into a plurality of planes instead of being cylindrical, only on the side where the stretch stopper piece is attached, of the portions covering the insteps at both ends. The method for producing a seamless stretch boot according to claim 3, wherein when the stretch stopper piece is attached, the stretch stopper piece is sewn together to form a tubular shape.   5. The method for manufacturing a seamless stretch boot according to claim 3 or 4, wherein the tubular fabric is formed without sewing by knitting from a yarn. The above cylindrical fabric uses a V-bed flat knitting machine having a needle bed at the front and back, reciprocating the carriage, and rotating the knitting yarn around the knitting needle on the front needle bed and the knitting needle on the rear needle bed. The method for producing a seamless stretch boot according to claim 5, wherein the yarn is formed by knitting by alternately feeding yarns.

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