JP2011231428A - Sock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sock that prevents stitch holes from widening about the section which is a boundary between a section where the knitting width decreases and a section where the knitting width increases and which is a region adjacent to the first end of the boundary, including the first end of the boundary next to a sock body.SOLUTION: The sock includes: a sock body 2; a bag-like heel section 3 which is a combination of the section 31 where the knitting width increases and the section 32 where the knitting width decreases; and a sheet 4 which is a member for preventing stitch holes from widening and is arranged at the section which is a boundary 33 between the section 31 and the section 32 and is the region 35 adjacent to the first end 34 of the boundary 33 next to the sock body 2.

Description

  The present invention relates to socks.

  Conventionally, the sock body has a bag-like part of a heel part or a toe part that connects a stitch reducing part that gradually reduces stitches by a reciprocating rotation of a knitting machine and a stitch increasing part that gradually increases stitches into a bag shape. Arranged socks are widely known. Such a sock is extended so that the boundary first end on one end side of the boundary between the diminishing part and the eye increasing part is adjacent to the sock body. When pulled in the direction, the stitch formed in the vicinity of the boundary first end opens larger than the stitches of other portions (see FIG. 4). For this reason, the stitches in the vicinity of the boundary first end are likely to be opened more easily and the knitting yarn in the vicinity of the boundary first end may be broken.

  On the other hand, for example, Patent Document 1 discloses a sock that does not require a needle picker, is suitable for diversified pattern knitting, and does not cause a perforation at the boundary between a reduced eye part and an increased eye part formed on a heel part or a toe part. A sock knitting machine capable of being knitted is disclosed.

JP-A-8-291444

  However, even if the perforation of the boundary in the sock knitted by the sock knitting machine disclosed in Patent Document 1 can be suppressed, it cannot be said that the strength is still sufficient, and the boundary first end is not sufficient. It does not mean that the stitches in the neighboring area can be prevented from opening. Further, the sock knitting machine disclosed in Patent Document 1 is not sufficient for all socks knitted by connecting a bag-like portion to a sock body even though it can be adapted to a specific knitting structure. It is.

  An object of the present invention is to provide a sock that can suppress perforation of a stitch in a region near the boundary first end including the boundary first end adjacent to the sock body at the boundary between the stitch reducing portion and the stitch increasing portion.

  In order to solve the above-mentioned problem, the invention of claim 1 of the present application is to knitted a bag by connecting a stitch reducing portion that gradually reduces stitches and a stitch increasing portion that gradually increases stitches by reciprocating rotation of a knitting machine. At least one bag-like part of the toe part and the toe part is a sock disposed so that the boundary first end on one end side of the boundary between the eye reducing part and the eye increasing part is adjacent to the sock body The sock is characterized in that a perforation restraining member for restraining perforation of the stitches in the region near the first boundary of the boundary is disposed in the region near the first boundary of the boundary including the first boundary of the boundary.

  The perforation restraining member includes a sheet body separate from the sock body and the bag-shaped part, and covers at least the boundary first end region from the inner surface side so as to cover the sock body and the bag-shaped part. It can be configured to be adhered to.

  The sheet body may be configured to have a size that can cover substantially the entire bag-shaped portion, and may be configured such that a plurality of cuts are provided radially in the outer peripheral portion of the sheet body.

  The said sheet | seat body can be comprised from what has non-moisture permeability.

  The perforation suppressing member includes a heat-bondable reinforcing yarn, the boundary first end vicinity region is knitted by a knitting yarn, and the reinforcing yarn is partly or entirely of the knitting yarn. It can be configured to be inserted between them.

  According to the first aspect of the present invention, the perforation suppressing member that suppresses perforation of the stitches in the region near the boundary first end is disposed in the region near the boundary first end including the boundary first end.

  As a result, even if the boundary first end vicinity region is pulled in the vertical and horizontal directions, for example, the stretch of the boundary first end region is suppressed by the perforation suppressing member, and the stitch formed in the boundary first end vicinity region is suppressed. Hole opening can be suppressed. Thereby, even if it is repeatedly used, it is possible to prevent the knitting yarn constituting the boundary first end vicinity region from being broken.

  According to claim 2, the perforation restraining member is formed of a sheet body separate from the sock body and the bag-like part, and covers the region near the boundary first end from the inner surface side, and the sock body and Bonded to the bag-like part.

  Thereby, it is possible to suppress perforation of stitches in the vicinity of the boundary first end of all socks knitted regardless of the type of the knitting machine. Further, the knitting by the knitting machine can be performed by the same method as before, and the complication of the knitting can be prevented.

  According to claim 3, the sheet body is composed of a size that can cover almost the entire bag-shaped portion, and a plurality of cuts are provided radially on the outer peripheral portion of the sheet body, A sheet | seat body can be adhere | attached along the internal peripheral surface of a bag-shaped part.

  Thereby, it can prevent that a sheet | seat body adhere | attached on the bag-shaped part forms wrinkles, and can wear socks without a sense of incongruity.

  According to the fourth aspect, since the sheet body is made of a material having non-moisture permeability, it is possible to prevent the permeation of moisture emanating from the foot when worn, and the moisture is interposed between the sheet body and the foot. Can be retained. As a result, the knitting yarn knitted in the region near the boundary first end or its vicinity can be easily impregnated with moisture, the frictional resistance of the knitting yarn can be increased, and the stitches can be hardly opened.

  According to the fifth aspect of the present invention, the perforation suppressing member is composed of a heat-bondable reinforcing thread, and the boundary first end vicinity region is configured so that the reinforcing thread is disposed in part or in whole. Therefore, after the knitting, if the region near the boundary first end is heated to a temperature higher than the fusion temperature of the reinforcing yarn, the reinforcing yarn can be adhered to the knitting yarn. It is possible to prevent the stitches from becoming large. Therefore, it is possible to prevent the knitting yarn constituting the region near the boundary first end from being broken or from being greatly opened.

It is a side view of the sock of 1st Embodiment of this invention. It is an enlarged view of the principal part of the sock of FIG. It is an expanded view of the principal part of the sock of FIG. It is a principal part expanded side view of the state which pulled the boundary 1st end vicinity area | region of the state before adhering a sheet | seat body after knitting. It is an expanded view of a sheet | seat body. It is explanatory drawing of the state which adhered the sheet | seat body to the collar part and the boundary 1st end vicinity area | region from the inner surface side. It is a principal part enlarged side view of the sock of 2nd Embodiment of this invention. It is a schematic diagram of the knitting structure | tissue of the boundary 1st end vicinity area | region of 2nd Embodiment. It is a principal part expanded side view of the sock of 2nd Embodiment formed with the other arrangement | positioning method of a heat-fusion yarn.

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view of a sock according to a first embodiment of the present invention.

  The sock 1 of this embodiment includes a sock body 2, a heel part 3 as a bag-like part, and a sheet body 4 as a hole opening restraining member (FIG. 1 shows an outline of the sheet body 4). )

  The sock body 2 includes a leg portion 23 and a foot sole portion 25. The leg portion 23 includes a cylindrical shin portion 23 a and an ankle portion 23 b, and an upper portion 24. In addition, a foot opening 21 is provided at the upper end of the shin portion 23a.

  In this embodiment, the leg portion 23 is a woolly nylon (30 / 2WN) in which a 32nd single yarn rayon acrylic (RA32 / 1) having the same mixing ratio of rayon and acrylic and a 30 denier nylon are double-tipped. ) And double-covered yarn (DCY180 × 40 × 40) in which 40-denier nylon is double-wound around 180-denier polyurethane is used as a knitting yarn and is circularly knitted.

  The upper end of the shin portion 23a has a mouth rubber made of the rayon acrylic (RA32 / 1) and the wooly nylon (30 / 2WN).

  The sole 25 is mesh-knitted using the rayon acrylic (RA32 / 1), the woolly nylon (30 / 2WN), and the double-covered yarn (DCY180 × 40 × 40) as knitting yarns.

  The sole portion 25 and the upper portion 24 of the leg portion 23 are continuously knitted and formed into a cylindrical shape, and a foot opening 22 is provided on the tip side thereof. The feet can be put out from the opening 22.

  As shown in FIGS. 2 and 3, the heel part 3 includes a stitch increasing unit 31 that gradually increases the stitches and a stitch reducing unit 32 that gradually decreases the stitches. While the sock body 2 is formed by the rotational movement of a cylinder of a knitting machine (not shown), the eye increasing portion 31 and the eye reducing portion 32 are formed by a reciprocating motion of the cylinder. In FIG. 3, each part is distinguished by giving a hatched line different in dot-dash line for each part.

  In this embodiment, the eye increasing portion 31 and the eye reducing portion 32 are made of the rayon acrylic (RA32) and wooly nylon (50 / 2WN) obtained by twining 50 denier nylon as knitting yarns. Are flat knitted.

  Further, when the eye increasing portion 31 and the eye reducing portion 32 are knitted, both end portions 31a and 32a are connected to each other, whereby the collar portion 3 is formed in a bag shape, as shown in FIGS. As shown, a boundary 33 between the eye increasing portion 31 and the eye reducing portion 32 is formed in a substantially straight line with a predetermined length.

  Further, the heel part 3 configured as described above is disposed between the leg part 23 and the sole part 25 of the sock body 2, and in this state, the boundary 33 having the linear shape is the tip (one end). ) Is adjacent to the leg portion 23, and the boundary second end 37, which is the base end (the other end) thereof, is located in the middle portion of the flange portion 3.

  In this state, the eye increasing portion 31 and the leg portion 23 of the heel portion 3 are connected, and the eye reducing portion 32 of the heel portion 3 and the sole portion 25 are connected. In this connected state, when the boundary first end vicinity region 35 including the boundary first end 34 is pulled, for example, in the vertical and horizontal directions, as shown in FIG. The stitches 36a and 36b are perforated to become larger holes than the stitches of other portions.

  More specifically, in the boundary first end vicinity region 35, a gore hole 36 a that is a stitch formed in the boundary first end 34, a body formed in the vicinity of the boundary first end 34 in the leg portion 23 of the sock body 2. When the stitch 36b or the like is present and the boundary first end vicinity region 35 is pulled, the gore hole 36a and the main body stitch 36b are opened.

  Next, the sheet body 4 will be described. This is for suppressing the opening of the stitches 36a and 36b. In this embodiment, as shown in FIG. In this embodiment, the sheet body 4 is a polyurethane sheet having a thickness of 0.05 mm to 0.3 mm.

  Moreover, the sheet | seat body 4 is equipped with the circular arc part 41 whose outer periphery shape is circular arc shape in the one end side. Further, the arc portion 41 is formed to have a plurality of cuts 42 that are radially cut with a predetermined width and a predetermined length from the outer periphery to the radially inner side, and to be radially extended by the plurality of cuts 42. And a plurality of elongated pieces 43.

  Further, on the back surface (one surface) side of the sheet body 4, a hot melt resin layer (not shown) is provided as a heat-sealable heat-sealable layer composed of hot melt having a melting point of 150 ° C. Yes. Note that heat fusion means softening at a predetermined temperature and bonding to another member.

  Then, as shown in FIG. 6, the sheet body 4 configured in this manner includes a part of the sock body 2, a substantially entire portion of the heel part 3, and a boundary first end vicinity region 35 from the inner surface side of the sock body 2. It arrange | positions so that it may cover.

  In this embodiment, as shown in FIGS. 5 and 6, the sheet body 4 is arranged such that a first mark 44 provided on the sheet body 4 and a second mark 25 a provided on the sole 25. This is done by aligning.

  Specifically, a first mark 44 for positioning the pressing member is provided on the other end side of the sheet body 4 so as to be cut. On the other hand, a second mark 25 a formed by knitting different from the knitting yarn of the sole 25 is provided in a predetermined position on the inner surface of the sole 25.

  Then, the first mark 44 and the second mark 25a are aligned as shown in FIG. Thereby, the sheet | seat body 4 can be arrange | positioned in a predetermined position, without impairing the external appearance of a sock main body.

  The entire sheet body 4 arranged as described above is heated and pressed at a predetermined pressure (2.0 to 3.0 kPa in this embodiment) to a temperature of about 160 ° C.

  As a result, the sheet body 4 adheres to a part of the sock body 2, substantially the entire heel part 3, and the boundary first end vicinity region 35.

  In addition, this sheet | seat body 4 can also be comprised from what has not only the form comprised from a non-moisture-permeable thing but what has moisture permeability, and can change suitably. However, if the sheet body 4 is made of a non-moisture permeable material, it is possible to prevent the permeation of moisture emitted from the foot when wearing socks, and to retain the moisture between the sheet body 4 and the foot.

  As a result, the knitting yarn in the region near the boundary first end can be easily impregnated with moisture, and the frictional resistance of the knitting yarn can be increased. Therefore, it is advantageous in that the stitches can be made difficult to open and the keratinization of the foot heel can be prevented.

  In the first embodiment, the sheet body 4 is heat-sealed to the flange 3 or the like. However, the bonding method of the sheet body 4 is not particularly limited. For example, the sheet body 4 may be bonded by printing or an adhesive. May be.

  Moreover, in the said 1st Embodiment, although the sheet | seat body 4 comprised from 0.05 mm-0.3 mm in thickness, the thickness of the sheet | seat body 4 is not specifically limited. However, if the thickness is less than 0.05 mm, it is difficult to reinforce the region near the boundary first end. On the other hand, if the thickness exceeds 0.3 mm, there is a possibility that a sense of incongruity may occur when wearing socks. Therefore, it is preferable to use the thing of the said range.

  In the first embodiment, the sheet body 4 covers a part of the sock body 2, substantially the entire heel part 3, and the boundary first end vicinity region 35, but is not limited to this form. Can be changed as appropriate.

  For example, the sheet body 4 may be formed of a material having substantially the same size as the boundary first end vicinity region 35 and may be bonded so that only the boundary first end vicinity region 35 is covered with the sheet body 4.

  Next, two types of tests, a repeated load test and a tensile test, were performed as a strength test of the first boundary vicinity region 35 of the sock of the first embodiment, and will be described below.

  In the repeated load test, two points A and B sandwiching the boundary first end 34 as shown in FIG. 2 are placed in the boundary first end vicinity region 35 of the sock (hereinafter referred to as “product No. 1”) of the first embodiment. The test was performed by repeatedly applying a circumferential tensile load of 4 kgf five times in the circumferential direction (XX direction in the figure) along the line of the boundary 33.

  In addition, as a comparative test, a sock that does not have the sheet body 4 (same as the product No. 1 except that the sheet body 4 is not provided, hereinafter referred to as a comparative product No. 1) is manufactured under the same conditions as above. A test was conducted.

  As a result, in this product No. 1, the gore hole 36a and the main body stitch 36b (see FIG. 4) were slightly perforated, but the knitting yarn and the sheet body were not broken. On the other hand, in the comparative product No1, the gore hole 36a and the main body stitch 36b opened and the knitting yarn was broken.

  In addition, with respect to the product No. 1 described above, after repeatedly applying the circumferential tensile load five times as described above, two points C and D across the boundary first end 34 are further orthogonal to the circumferential direction. In the axial direction (YY direction in the figure), an axial tensile load of 4 kgf was repeatedly applied. As a result, the sheet was not broken up to four times, but the sheet was broken at the fifth time.

  Next, the tensile test will be described. This tensile test is performed at two points A and B (shown in FIG. 2) with the boundary first end 34 in the vicinity of the boundary first end 34 of the product No. 2 (the same configuration as that of the product No. 1). Was performed by pulling in the circumferential direction (XX direction in the figure) at a width of 50 mm, a gripping interval of 20 mm, and a pulling speed of 300 mm / min.

  Further, a comparison product No. 2 having the same configuration as that of the comparison product No. 1 was tested under the same conditions as those of the present implementation product No. 2.

  As a result of the tensile test, the comparative product No. 2 was ruptured at 92.2N, while the present product No. 2 was ruptured at 112.5N, and the rupture strength of the present product No. 2 was 122% with respect to the comparative product No. 2. It was.

  Next, a sock according to a second embodiment of the present invention will be described with reference to FIGS. The hole opening restraining member of the sock 100 of the second embodiment is composed of a reinforcing thread 5 that can be heat-sealed.

  In this embodiment, the reinforcing yarn 5 is a 100-denier polyurethane yarn wound with a 12-denier nylon yarn (SCY100 × 12). Further, as this polyurethane yarn, one made of a low melting point polyurethane having a melting point of 60 ° C. to 120 ° C. is used, and as the nylon yarn, one made of a low melting point nylon having a melting point of 110 ° C. to 120 ° C. It is used.

  Then, as shown in FIG. 7, the knitting yarn 20 is knitted in a plurality of courses so that the reinforcing yarn 5 passes through the boundary first end vicinity region 35 together with the knitting yarn 20 knitting the sock body 2 when knitting the sock body 2. And are arranged in a part of the boundary first end vicinity region 35 (alignment insertion). In FIG. 7, the reinforcing yarn 5 is indicated by a dotted line in order to distinguish it from the knitting yarn 20.

  The reinforcing yarn 5 thus arranged is heated to a temperature equal to or higher than the melting point of the polyurethane yarn and the nylon yarn, for example, about 120 ° C. In this embodiment, this heating is also performed in the shaping process performed after knitting socks.

  This shaping process is a process that is usually performed in the production of socks to adjust the shape after knitting. The socks after knitting are placed in a foot shape to 105 ° C to 120 ° C (in this embodiment, 120 ° C). ) In a predetermined humidity atmosphere.

  Therefore, if this shaping process is performed, the reinforcing yarn 5 can be heated to the melting point or higher at the same time, and it can be performed in the same manufacturing process as before without providing a separate heating step.

  The reinforcing yarn 5 heated in this shaping process adheres to the knitting yarn 20 that is in contact therewith. Thereby, the hole opening in the boundary first end vicinity region 35 can be suppressed, and the tensile strength of the boundary first end vicinity region 35 can be increased. Therefore, even if it is used repeatedly, it can be made less likely to break from the boundary first end vicinity region 35.

  In addition, the arrangement | positioning method to the boundary 1st end vicinity area | region 35 of the reinforcement thread | yarn 5 is not restricted to the thing of the said form, It can change suitably. For example, as shown in FIG. 9, the reinforcing yarn 5 is inserted together with the knitting yarn 20 so as to be arranged on a plurality of courses of a predetermined length passing through the boundary first end vicinity region 35 together with the knitting yarn when the sock body 2 is knitted. (Insertion with a cut boss) may be arranged in a part of the boundary first end vicinity region 35.

  In addition to the knitting of the sock body 2 and the heel part 3, the reinforcing yarn 5 is disposed on a part or the whole of the boundary first end vicinity region 35 by, for example, hand knitting after the knitting of the sock body 2 and the heel part 3. May be.

  In the above embodiment, the boundary first end vicinity region 35 is set to a circle having a diameter of 1 to 10 mm with the boundary first end 34 as the center in a normal state where no tensile force is applied. It can change suitably not only in a thing.

  For example, the boundary first end vicinity region 35 may be a circle having a diameter of 1 to 10 mm and having the boundary first end 34 at a position shifted from the center of the circle by a predetermined amount.

  Moreover, in the said embodiment, although comprised from the sock which has only the heel part 3 as a bag-shaped part, it can change suitably not only in the thing of this form. For example, as the bag-shaped portion, a toe portion knitted into a bag shape by connecting the stitch reducing portion and the stitch increasing portion together with the collar portion 3 may be provided. Moreover, when providing a toe part as a bag-shaped part, what formed the collar part 3 by the rotational motion of the cylinder of the knitting machine which does not form a stitch reduction part and a stitch increase part.

  Moreover, in the said 1st Embodiment, the hole opening suppression member was comprised from the sheet | seat body, and in the said 2nd Embodiment, the hole opening prevention member was comprised from the reinforcement thread | yarn. You may comprise a member from the said sheet | seat body and the said reinforcement thread | yarn. That is, a reinforcing thread may be disposed in the boundary first end vicinity region 35 and the sheet body may be bonded to the boundary first end vicinity region 35 in which the reinforcing thread is disposed.

  Moreover, in the said embodiment, although it was set as the sock which has the shin part 23a, the shape and kind of sock are not specifically limited, For example, the thing to an ankle, the thing which covers a knee, etc. can be changed suitably. The socks as used in the present invention include tights.

1 sock 2 sock body 3 heel part (bag-like part)
4 Sheet body (perforation restraining member)
5 Reinforcement thread (hole opening restraining member)
31 Increased portion 32 Reduced portion 33 Boundary 34 Boundary first end 35 Region near boundary first end

Claims (5)

At least one bag-shaped portion of a heel portion and a toe portion that knitted into a bag shape by connecting a stitch reducing portion that gradually reduces stitches by a reciprocating rotation of the knitting machine and a stitch increasing portion that gradually increases stitches, A sock disposed so that the boundary first end on one end side of the boundary between the reducing part and the eye increasing part is adjacent to the sock body,
A sock characterized in that a perforation restraining member that restrains perforation of stitches in the region near the boundary first end is disposed in a region near the boundary first end including the boundary first end.   The perforation restraining member includes a sheet body separate from the sock body and the bag-shaped part, and covers at least the boundary first end region from the inner surface side so as to cover the sock body and the bag-shaped part. The sock according to claim 1, wherein the sock is bonded to the shoe.   The sheet body is formed of a size that can cover substantially the entire bag-shaped portion, and a plurality of cuts are provided radially on the outer peripheral portion of the sheet body. Item 2. Socks according to item 2.   The sock according to claim 2 or 3, wherein the sheet body is made of a material that is impermeable to moisture. The perforation suppressing member includes a reinforcing thread that can be heat-sealed,
The boundary first end vicinity region is knitted with a knitting yarn, and part or all of the region is configured such that the reinforcing yarn is inserted between the knitting yarns. Item 5. The sock according to any one of items 1 to 4.

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