JP2011017097A - Method for forming opening of tubular knitted fabric, tubular knitted fabric product, bagged tubular knitted fabric and socks - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for forming openings of tubular knitted fabric, which suppresses an increase in production cost and reduction in production efficiency as compared to a conventional production method for tubular knitted fabric not having openings and improves durability and appearance of openings as compared to openings of conventional tubular knitted fabric.SOLUTION: The method for forming openings of tubular knitted fabric, which forms openings 16 of a tubular knitted fabric 1 in knitting the tubular knitted fabric 1 using a circular knitting machine in the method for forming the openings of the tubular knitted fabric, includes a reinforcing part knitting step of knitting reinforcing parts 12 for the openings 16 by carrying out reciprocal rotation motion of the cylinder of the circular knitting machine and an opening formation step of forming the openings 16 by not knitting parts of courses corresponding to the reinforcing parts 12 in knitting by rotation motion of the cylinder of the circular knitting machine.

Description

  The present invention relates to a cylindrical knitted fabric opening forming method for forming an opening in a cylindrical knitted fabric, a cylindrical knitted fabric product having an opening formed by using this cylindrical knitted fabric opening forming method, and a bag Knitted fabric products and socks.

  Conventionally, many knitted fabric products (knitted products) have been designed for physical protection from external factors and environmental protection such as moisture retention, antibacterial deodorization, etc. by means of materials and stitch knitting. The value is not limited to mere daily apparel, but new value is being found in the medical and fashion industries. For example, in socks, there is a demand for a sock that changes its shape as a so-called supporter for strengthening the tightening force of a specific part of the foot and is useful for correcting muscles and tendons. Furthermore, fashionable legwear that lacks some knitted fabrics, such as those that change the shape itself from the socks according to the original foot and leg shape, and have no toes or soles, is demanding from young people In addition to its performance, there is a demand for good appearance.

  Patent Documents 1 and 2 disclose a method of forming an opening in a sock as a method of manufacturing this type of specially shaped sock. In the sock opening forming method disclosed in Patent Document 1, when knitting a knitted fabric, the opening is formed by inserting a pulling yarn into the opening forming portion and knitting, and pulling out the pulling yarn after the knitting is completed. . Further, in the sock opening forming method disclosed in Patent Document 2, once the sock is knitted in a normal manufacturing process, the opening is formed by cutting and sewing using a sewing machine such as an overlock sewing machine. is doing.

Japanese Patent No. 3615698 Utility Model Registration No. 3114044 Specification

  However, in the sock opening forming method described in Patent Document 1, in the sock manufacturing process, an unnecessary process is added in the normal manufacturing process of pulling out the thread, which increases production costs such as labor costs, There was a problem that the production efficiency was lowered.

  Further, the sock opening forming method described in Patent Document 2 also has a problem of an increase in production cost and a decrease in production efficiency because a process of cutting and sewing is added to a normal manufacturing process. Furthermore, sewing with a sewing machine is a technique mainly intended to be attached, so there is a problem in the feel and wearing feeling, such as the feeling of stickiness is not obtained at the sewing part, and a natural wearing feeling cannot be obtained. . In addition, there is a problem that the knitting yarn of the sewing machine is exposed to the surface and the appearance is poor.

  Here, regarding the problem of increase in production cost and decrease in production efficiency, a method of forming an opening by knitting a knitted fabric by making a part of the course unknitted using the performance of a circular knitting machine. Can be considered. However, in this method, due to the structure of the stitch, there is a problem of durability that the opening is extremely damaged due to fraying or thread breakage of the opening, particularly the stitch on the knitting end side of the opening due to wearing. It is done. Regarding the problem of durability of the opening, it is conceivable to use a cut boss method at the edge of the opening, but the cut end yarn comes out from the edge of the opening, and the appearance of the opening is very good. There is also the problem of getting worse.

  Therefore, the present invention suppresses an increase in production cost and a decrease in production efficiency as compared with a conventional method for producing a tubular knitted fabric having no opening, and also compared with a conventional tubular knitted fabric opening. A method for forming an opening in a tubular knitted fabric that can enhance the durability and appearance of the opening, a tubular knitted fabric product having an opening formed by using the method for forming an opening in a tubular knitted fabric, and a bag It aims to provide a knitted fabric product and socks.

  The cylindrical knitted fabric opening forming method of the present invention is a cylindrical knitted fabric opening forming method in which an opening is formed in the cylindrical knitted fabric when the cylindrical knitted fabric is knitted using a circular knitting machine. In the knitting step of knitting the reinforcing part for the opening by reciprocatingly rotating the cylinder of the circular knitting machine, and the knitting by the rotational movement of the cylinder of the circular knitting machine, the course corresponding to the reinforcing part And an opening forming step of forming an opening with a portion being unorganized.

  According to the present invention, the reinforcing portion knitting step is composed of only the knitting step using the reciprocating rotational motion of the cylinder of the circular knitting machine including the sock knitting machine for knitting the tubular knitted fabric, and the opening Similarly, since the part forming process is composed of only the knitting process using the rotational motion of the cylinder of the circular knitting machine including the sock knitting machine, these processes are a series of continuous processes under full computer control. It can be a knitting process. Therefore, according to the present invention, it is possible to suppress an increase in production cost and a decrease in production efficiency as compared with a conventional method for manufacturing a tubular knitted fabric having no opening without passing through an extra step as in the prior art. It is possible to produce a tubular knitted fabric product having an opening.

  Further, according to the present invention, the reinforcing portion is knitted on the knitting end edge side of the opening by the reinforcing portion knitting step. It is possible to prevent side-side fraying and thread breakage, and it is not necessary to use a cut boss method at the same time, so that the remaining cut end yarn can be eliminated. As a result, the durability and appearance of the opening can be enhanced as compared with the opening of a conventional tubular knitted fabric.

  In the reinforcing part knitting step, the reinforcing part is preferably knitted using a knitting yarn containing synthetic fibers, and the above-described method for forming the opening of the tubular knitted fabric is performed by performing heat setting after the knitting of the tubular knitted fabric is completed. It is preferable to further include a heat setting step to be performed.

  Synthetic fibers are generally formed by a drawing process, and therefore have a property of reducing when heat is applied. According to this, since the knitting yarn of the reinforcing portion is reduced in the heat setting process, the stitches of the reinforcing portion are tightened, fraying of the stitches at the time of wearing, breakage such as yarn breakage, particularly fraying on the knitting end edge side of the opening. And breakage such as thread breakage can be more effectively prevented. As a result, the durability and appearance of the opening can be further improved.

  In the reinforcing part knitting step, it is preferable that the reinforcing part is knitted using a knitting yarn including a heat-sealing yarn. It is preferable to further include a heat setting step of performing heat setting after completion.

  According to this, in the heat setting process, the knitting yarn of the reinforcing portion is reduced and the stitches of the reinforcing portion are tightened, and the crossing portion of the stitches of the knitting yarn is heat-sealed. It is possible to more effectively prevent breakage such as fraying on the knitting end side of the opening and breakage of the yarn. As a result, the durability and appearance of the opening can be further improved.

  In the reinforcing part knitting step described above, the reinforcing part is preferably knitted by needle lowering knitting.

  According to this, since the reinforcing portion works so as to cover the opening by gradually increasing the stitches of the reinforcing portion toward the knitting end side, as compared with the reinforcing portion knitting by needle raising and other reciprocating rotational movements. Thus, the opening can be reinforced more effectively. As a result, the durability and appearance of the opening can be further improved.

  In the reinforcing part knitting step described above, it is preferable that the reinforcing part is knitted so that the width of the reinforcing part on the knitting end side is wider than the width of the opening.

  According to this, when a force is applied in a direction orthogonal to the width direction of the opening, the force applied to both ends in the width direction of the opening is dispersed. Fraying, thread breakage and the like can be prevented, and as a result, the durability and appearance of the opening can be further enhanced.

  Further, the above-described method of forming the opening of the tubular knitted fabric includes an elastic yarn inserting step of inserting an elastic yarn into a course corresponding to the knitting start end side of the opening in the knitting by the rotational movement of the cylinder of the circular knitting machine. Furthermore, it is preferable to include.

  According to this, fraying on the knitting start end side of the opening can be prevented, so that the durability and appearance of the opening can be further enhanced.

  Each of the tubular knitted fabric product, the bag-shaped knitted fabric product, and the sock of the present invention includes an opening formed by the above-described method for forming an opening of the tubular knitted fabric, and a reinforcing portion for the opening. Have.

  According to these tubular knitted fabric products, bag-shaped knitted fabric products, and socks, as described above, the production cost is increased and the production efficiency is lowered as compared with the conventional tubular knitted fabric having no opening. And the durability and appearance of the opening can be enhanced as compared with the opening of a conventional tubular knitted fabric.

  In the above socks, it is preferable that the opening is located in at least one of the upper part and the lower part of the calf.

  According to this sock, the upper and lower parts of the calf have openings with excellent durability and appearance, so that the socks for wearing electrotherapy socks can be attached to the wearer's feet from each opening while wearing the socks. Can be suitably used.

  Moreover, in the above-described socks, it is preferable that an opening part is located in a heel part.

  According to this sock, for example, if it is applied to a sock whose toe side portion is opened, a trender having both fashionability and durability can be obtained.

  Further, in the above socks, the sole knitting portion is knitted with the knitting needle for knitting the instep side by inverting the instep side knitting portion and the sole side knitting portion of the sock with respect to the knitting needle of the cylinder of the circular knitting machine. It is preferable that the upper side knitted portion is knitted with a knitting needle for knitting the sole side.

  Generally, in a circular knitting machine, the upper side knitting portion of the sock is knitted with one half of the knitting needles in the cylinder, and the sole side knitting portion of the sock is knitted with the other half of the knitting needles. At that time, the insertion position of the elastic yarn is fixed to the plantation side knitted portion. For this reason, for example, the insertion terminal of the elastic yarn inserted in the elastic yarn insertion step appears in the opening formed in the calf, and the appearance is deteriorated. Therefore, in the sock of the present invention, by knitting the sole side knitted portion with the knitting needle for knitting the instep side, and reversing to knitting the instep side knitting portion with the knitting needle for knitting the sole side, The origin of the elastic yarn insertion terminal can be apparently transposed to the shin side. As a result, it is possible to prevent the appearance of the opening from deteriorating.

  According to the present invention, an opening forming method for a tubular knitted fabric, a tubular knitted fabric product having an opening formed by using this cylindrical knitted fabric opening forming method, a bag-shaped knitted fabric product, and a sock , Which suppresses an increase in production cost and a decrease in production efficiency compared to a conventional method for manufacturing a tubular knitted fabric having no opening, and is superior in durability compared to a conventional tubular knitted fabric opening. The opening part which has property and appearance can be obtained.

It is a figure which expands and shows an example of the knitted fabric by a circular knitting machine. It is a figure which shows the bag-shaped protrusion formed in the cylindrical knitted fabric, and its expanded view. It is a figure which shows the sock which concerns on the 1st Embodiment of this invention from a side surface. FIG. 4 is an expanded view showing a portion A in the sock shown in FIG. 3 in an enlarged manner. It is a figure which shows the various deformation | transformation of the needle | hook lowering and needle raising knitting of the reinforcement part shown in FIG. It is a figure which shows the sock which concerns on the 2nd Embodiment of this invention from a side surface. It is an expanded view which expands and shows the part A in the sock shown in FIG. It is a figure which expands and shows the knitted fabric of the elastic yarn insertion part shown in FIG.6 and FIG.7. It is a figure which shows the sock which concerns on the modifications 1-3 of this invention from a side surface. It is a figure which shows the sock which concerns on the modification 4 of this invention from a side surface. It is a figure which shows typically the modification of the opening part formation method of the sock of this invention. It is a figure which shows the glove which concerns on the modification 5 of this invention. It is an expanded view which shows the part A in the glove shown in FIG. It is a figure which shows the glove which concerns on the modification 6 of this invention in order from the back side and the palm side. It is an expanded view which expands and shows the glove shown in FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals.

  In the present invention, a circular knitting machine for knitting tubular knitted fabric products (knitted products) such as socks and stockings and bag-shaped knitted fabric products is used. This circular knitting machine is a full computer type knitting machine provided with a cylindrical cylinder. Full computer type is a design that allows stitch design data of the entire product created on a computer to be transferred to a knitting machine using an electromagnetic recording medium and electrically knitted electrically based on the stitch design data. -A knitting machine that processes a series of knitting operations in a computer manner.

  In this type of circular knitting machine, the cylindrical cylinder rotates, and the knitting needles arranged on the circumference repeat the vertical movement, so that the knitting yarn 2 is knitted in a loop shape as shown in FIG. ). Then, one course of knitting is performed at 360 ° rotation (one rotation), and the rotary knitting is repeated in the same direction, whereby a tubular knitted fabric product is knitted. This counterclockwise rotation of the cylinder is generally referred to as forward rotation, and clockwise rotation is generally referred to as reverse rotation. On the other hand, for example, when knitting a bag-like projection like the heel part of a sock, the cylinder is knitted with arbitrary needles by repeating forward and reverse rotations in units of one course. This is referred to as reciprocal rotation.

Fig.2 (a) is a figure which shows the bag-shaped protrusion formed in the cylindrical knitted fabric, FIG.2 (b) is a figure which shows the expanded view of the state which expand | deployed the cloth | batter of the bag-shaped protrusion on the plane. The right arrow in FIG. 2B indicates normal rotation, and the left arrow indicates reverse rotation. And bag-like protrusion A ', B' is formed by the reciprocating rotation of forward rotation and reverse rotation so that the left-right arrow may be shown alternately. Further, the trapezoidal knitted fabric A ′ when the bag-like projections A ′ and B ′ are viewed from the back surface direction X is knitted in the A direction. This knitting is referred to as needle raising (or stitch reduction). Further, the trapezoidal knitted fabric B ′ when viewed from the front direction Y is knitted in the B direction, and this knitting is referred to as needle lowering (or increasing stitches).
[First Embodiment]

As a method for forming the opening of the tubular knitted fabric according to the first embodiment of the present invention, a method for forming the opening of the sock according to the first embodiment of the present invention will be described. FIG. 3 is a side view of the sock 1 according to the first embodiment of the present invention, and FIG. 4 is an exploded view showing a portion A of the sock 1 shown in FIG.
(Cylindrical part knitting process)

First, the tubular portion 10 of the sock 1 is knitted by the forward rotation motion of the cylinder of the circular knitting machine. Use materials and knitting methods according to the application of the product, and adjust the fastening hardware. In the sock 1 of the present embodiment, for example, knitting is performed by flat knitting using 150 denier polyester continuous fibers (FIG. 1), and the standard fastening force of a commercially available compression sock is used.
(Reinforcement part knitting process)

  Next, the reinforcing portion 12 for the opening portion 16 is knitted by reciprocally rotating the cylinder at a portion corresponding to the opening portion 16. For example, the reinforcing portion 12 is also knitted by the flat knitting shown in FIG. As the knitting yarn of the reinforcing portion 12, various fibers can be applied by switching from the tubular portion 10, but FTY (for example, polyurethane covered with polyester) using synthetic fibers as covering yarn is used. It is preferable. According to this, in addition to the reduction by heat setting of the polyester itself, a reduction force due to the stretchability of the polyurethane can be obtained, so that the stitch becomes firm and the reinforcing effect can be enhanced.

  Synthetic fibers are generally formed by a drawing process, and therefore have the property of shrinking when heat is applied. Synthetic fibers have the property of fixing when heat is applied. As a result, the knitting yarn of the reinforcing portion 12 is reduced by passing through a heat setting step described later, the stitches of the reinforcing portion 12 are tightened, and the intersecting portions of the stitches of the knitting yarn are fixed. As a result, fraying and thread breakage when wearing the knitting end edge 12a side of the reinforcing portion 12, that is, fraying and thread breakage when wearing the knitting end edge 16a side of the opening 16 are effective. Therefore, the durability and appearance of the opening 16 can be improved.

  Furthermore, in order to further improve the durability and appearance of the opening 16, it is preferable to use a heat fusion yarn as the knitting yarn of the reinforcing portion 12. Thereby, the intersection part of the stitches of the heat-sealing yarn is heat-sealed through a heat setting step described later. As a result, fraying and thread breakage during wear on the knitting end edge 12a side of the reinforcing portion 12, that is, fraying and thread breakage during wearing on the knitting end edge 16a side of the opening 16 are more likely to occur. It can prevent effectively and can improve the durability and appearance of the opening part 16 more.

  In addition, as the knitting yarn of the reinforcement part 12, the heat welding FTY which covered the heat welding thread | yarn to polyurethane may be used, and heat welding FTY and normal FTY may be used together.

  In addition, in the knitting of the tubular portion 10 before the 10th to 20th stitches, preferably the 15th stitch before the knitting of the reinforcing portion 12, the insertion of the knitting yarn of the reinforcing portion 12 is started, and before the 3rd to 10th stitch, It is preferable to remove the knitting yarn of the cylindrical portion 10 before the fifth stitch. Thereby, the knitting yarn of the cylindrical part 10 and the knitting yarn of the reinforcement part 12 overlap several times, and it can prevent that the knitting yarn of the reinforcement part 12 loosens.

  Moreover, it is preferable that the reinforcement part 12 is knitted by needle knitting (increase) knitting. As a result, the stitches of the reinforcing portion 12 gradually increase toward the knitting end edge 12a, so that the stitches at the time of wearing fray, particularly fraying on the knitting end edge 16a side of the opening 16 or breakage of yarn breakage, etc. Can be prevented more effectively. As a result, the durability and appearance of the opening 16 can be further enhanced.

  Various reinforcements can be applied to the reinforcing portion 12 as shown in FIG. For example, the reinforcing portion 12 may have a needle raising (mesh reduction) knitting as shown in FIG. 5 (a), or may not use a needle lowering knitting and a needle raising knitting as shown in FIG. 5 (b). Alternatively, as shown in FIG. 5 (c), the needle raising knitting and the needle lowering knitting may be sequentially combined, or as shown in FIG. 5 (d), the needle lowering knitting and the needle raising knitting are sequentially performed. You may combine.

  Further, the width of the reinforcing portion 12 on the knitting end side 12a side is preferably wider than the width of the opening 16 by two or more stitches at both end portions 12b. Thereby, breakage such as fraying and yarn breakage at both ends 16b on the knitting end side 16a side of the opening 16 can be effectively prevented, and as a result, the durability and appearance of the opening 16 are further improved. Can do.

Moreover, it is preferable that the reinforcement part 12 shall be 4 courses or more and 10 courses or less (2 reciprocating rotational movements 2 reciprocation rotation 5 reciprocation 5 or less). In the reinforcement part 12, the area becomes larger and the reinforcement effect becomes higher as the number of courses is larger, but the appearance of the knitted fabric is increased by that amount, so that the appearance is deteriorated. By making the reinforcement part 12 into 4 courses or more and 10 courses or less, the durability and appearance of the opening part 16 can be effectively improved in a balanced manner.
(Opening formation process)

  Next, the cylinder is returned to the normal rotational motion, and the opening cylindrical portion 14 is knitted. In the knitting of the opening cylindrical portion 14, the opening 16 is formed by making a part of the course corresponding to the reinforcing portion 12 unknitted.

In the present embodiment, the tubular portion knitting step, the reinforcing portion knitting step, and the opening forming step are repeated once, and the opening 16 and the reinforcing portion 12 are formed at two locations, the upper portion and the lower portion of the calf. Then, a knitting process is completed through a cylindrical part knitting process, a heel part knitting process, a cylindrical part knitting process, and a toe part knitting process.
(Heat setting process)

  Thereafter, in the heat setting step, the sock after completion of knitting is attached to a metal template and high-pressure steam is applied. Thereby, the shape is adjusted and the sock 1 is obtained. The heat setting process may be unnecessary depending on the product.

  As described above, according to the method of forming the opening of the sock 1 according to the first embodiment, the opening forming step includes rotating a cylinder of a known circular knitting machine including a sock knitting machine for knitting a tubular knitted fabric. It is composed of only the knitting process using motion, and the reinforcement knitting process is composed of only the knitting process using the reciprocating rotational motion of the cylinders of known circular knitting machines including sock knitting machines. As such, these steps can be a series of continuous knitting steps under full computer control. Therefore, according to the method of forming the opening of the sock 1 of the first embodiment, a conventional method for manufacturing a tubular knitted fabric that does not require a process such as cutting and sewing, and does not have a conventional opening. Compared with this, an increase in production cost and a decrease in production efficiency can be suppressed, and the sock 1 having an opening can be produced.

  In addition, according to the method for forming the opening of the sock 1 of the first embodiment, the reinforcing portion 12 is knitted on the knitting end edge 16a side of the opening 16 by the reinforcing portion knitting step, so And breakage such as yarn breakage, especially fraying on the knitting end side 16a side of the opening 16 and breakage of yarn breakage can be effectively prevented. As a result, compared with the opening of a conventional tubular knitted fabric Thus, the durability and appearance of the opening 16 can be enhanced.

  Further, the sock 1 having the opening formed by the method of forming the opening of the sock 1 of the first embodiment and the reinforcing part for the opening is a tubular knitted fabric having no conventional opening. In comparison with the above, an increase in production cost and a decrease in production efficiency can be suppressed, and the durability and appearance of the opening 16 can be enhanced as compared with the opening of a conventional tubular knitted fabric.

Moreover, according to the sock 1 of 1st Embodiment, since it has the opening part 16 excellent in durability and appearance in the upper part and lower part of a calf, a wearer wears an adhesive pad from each opening part 16 with a sock worn. It can be suitably used as a worn electrotherapy sock to be worn on the foot.
[Second Embodiment]

  Next, as a method for forming an opening of a tubular knitted fabric according to the second embodiment of the present invention, a method for forming an opening of a sock according to the second embodiment of the present invention will be described. 6 is a side view of a sock 1A according to the second embodiment of the present invention, and FIG. 7 is an exploded view showing a portion A of the sock 1A shown in FIG.

The opening forming method of the sock 1A of the second embodiment is different from the first embodiment in that it further includes an elastic thread insertion step in addition to the opening forming method of the sock 1 of the first embodiment. Other steps in the method of forming the opening of the sock 1A of the second embodiment are the same as those of the method of forming the opening of the sock 1 of the first embodiment.
(Elastic thread insertion process)

  After the opening forming step is completed, the elastic yarn insertion portion 18 is knitted by flat knitting as in the knitting of the tubular portion 10. In the knitting of the elastic yarn insertion portion 18, as shown in FIG. 8, the elastic yarn 18s such as rubber yarn is inserted for one course or more immediately after the start of the flat knitting of the knitting yarn 18t.

  According to the method of forming the opening portion of the sock 1A of the second embodiment and the sock 1A of the second embodiment, the stitch at the time of wearing on the knitting start end 16c side of the opening portion 16 by the elastic yarn inserting step. The fraying can be prevented, and the durability and appearance of the opening 16 can be further enhanced.

The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, in the present embodiment, the socks 1, 1A in which openings are formed in the upper and lower portions of the calf are illustrated, but openings may be formed in the toes and heels. Suppresses the increase in production cost and reduction in production efficiency compared to the manufacturing method of the tubular knitted fabric having no opening, and the durability and appearance of the opening compared to the opening of the conventional tubular knitted fabric Can be increased.
[Variation 1 of socks]

In the sock 1B according to Modification 1 of the present invention shown in FIG. 9A, in the sock 1 of the first embodiment, an opening 16 and a reinforcing part 12 are further provided near the base of the finger on the back side of the toe part. Is formed. According to the sock 1B of the first modification, the toe part and the upper part can be treated while wearing the sock.
[Modification 2 of socks]

In a sock 1C according to Modification 2 of the present invention shown in FIG. 9B, in the sock 1 of the first embodiment, an opening 16 and a reinforcing part 12 are further formed at the tip of the toe part. According to the sock 1C of the second modification, the toe can be treated while wearing the sock.
[Modification 3 of socks]

In sock 1D which concerns on the modification 3 of this invention shown in FIG.9 (c), in the sock 1 of 1st Embodiment, the opening part 16 and the reinforcement part 12 are formed in the earth sill part. According to the sock 1D of the third modification, it is possible to treat the bottom part such as the earth sash while wearing the sock.
[Modification 4 of socks]

In the sock 1E according to the modified example 4 of the present invention shown in FIG. 10, the opening 16 and the reinforcing part 12 are formed in the heel part of the sock in which the toe side portion 3 is opened. According to the sock 1E of the modified example 4, a trender having both fashionability and durability can be obtained.
[Variation of sock opening forming method]

  Further, in the method of forming the openings of the socks 1, 1A of the present embodiment, as shown in FIGS. 11 (a) to 11 (c), the upper side knitted portion and the foot of the socks with respect to the knitting needles B1, B2 of the cylinder of the circular knitting machine The bottom knitting portion may be reversed, the sole knitting portion may be knitted with the knitting needle B1 for knitting the instep side, and the instep knitting portion may be knitted with the knitting needle B2 for knitting the sole side. .

  As shown in FIGS. 11A and 11B, in a circular knitting machine, generally, a knitted portion b1 knitted with one half of the knitting needle B1 in the cylinder is the upper side of the sock, and the other half of the knitting needle B2 is used. The knitted portion b2 knitted on is the sole side of the sock. During these knitting, the insertion position B3 of the elastic yarn is fixed to the sole side knitting portion. Therefore, for example, the insertion terminal of the elastic yarn 18s inserted in the elastic yarn insertion step of the second embodiment comes out of the opening 16 formed in the calf, and the appearance is deteriorated. Therefore, as shown in FIGS. 11 (a) and 11 (c), the knitting portion b1 knitted with the knitting needle B1 is reversed so that the knitting portion b2 knitted with the knitting needle B2 is the instep side of the sock. By doing so, the origin of the insertion terminal of the elastic yarn 18s can be apparently transposed to the shin side. As a result, the insertion terminal is not exposed and the appearance of the opening 16 can be prevented from being deteriorated.

The method for forming an opening of a tubular knitted fabric of the present invention is not limited to socks, and can be applied to various knitted fabric products such as a tubular shape and a bag shape. For example, it is applicable as a method of forming an opening for exposing a finger in a glove.
[Modification 5 of the glove]

  Below, the opening part formation method of the glove which concerns on the modification of this invention is demonstrated as an opening part formation method of the cylindrical knitted fabric which concerns on the modification of this invention. FIG. 12 is a view showing a glove 5 according to Modification 5 of the present invention, and FIG. 13 is an expanded view showing a portion A of the glove 5 shown in FIG. The opening forming method of the glove 5 of this modified example is similar to the opening forming method of the socks 1, 1A of the present embodiment, the tubular part knitting process, the reinforcing part knitting process, the opening forming process, the elastic yarn inserting process. And a heat setting step.

  First, in the tubular part knitting step, the tubular part 50 of the glove 5 is knitted by the forward rotation motion of the cylinder of the circular knitting machine, as in the tubular part knitting step of the present embodiment. Next, in the reinforcing portion knitting step, the reinforcing portion 52 for the opening 56 is knitted by reciprocatingly rotating the cylinder in a portion corresponding to the opening 56 in the same manner as the reinforcing portion knitting step of the present embodiment. As the knitting yarn of the reinforcing portion 52, the same knitting yarn as that of the reinforcing portion 12 can be applied. Further, it is preferable that the knitting yarn of the reinforcing portion 52 overlaps the knitting yarn of the tubular portion 50 several times. Moreover, it is preferable that the reinforcement part 52 is knitted by needle knitting (increase) knitting. The width of the reinforcing portion 52 on the knitting end side 52a side is preferably wider than the width of the opening 56 by two or more stitches at both end portions 52b. Moreover, it is preferable that the reinforcement part 52 shall be 4 courses or more and 10 courses or less (2 reciprocating rotational motion 2 reciprocating movements or more and 5 reciprocating movements).

  Next, in the opening forming step, as in the opening forming step of the present embodiment, the cylinder is returned to the normal rotational motion, and the opening cylindrical portion 54 is knitted. In the knitting of the opening cylindrical part 54, the opening part 56 is formed by making the part of the course corresponding to the reinforcing part 52 non-knitting. Next, in the elastic yarn insertion step, the elastic yarn insertion portion 58 is knitted by flat knitting similarly to the knitting of the tubular portion 50, similarly to the elastic yarn insertion step of the present embodiment. In the knitting of the elastic yarn inserting portion 58, elastic yarn such as rubber yarn is inserted for one course or more immediately after the start of flat knitting of the knitting yarn. Then, a knitting process is completed through a cylindrical part knitting process. Next, in the heat setting process, as in the heat setting process of the present embodiment, the gloves after completion of knitting are mounted on a metal template and shaped by applying high-pressure steam to obtain the gloves 5. Note that the elastic yarn insertion step and the heat setting step are not necessarily required.

Even in the method of forming the opening of the glove 5 of this modification, the same advantages as the method of forming the opening of the sock 1, 1A of the present embodiment can be obtained, and the sock of the present embodiment is also obtained by the glove 5 of this modification. Advantages similar to those of 1,1A can be obtained.
[Modification 6 of the glove]

  Moreover, the opening formation method of the glove which concerns on another modification of this invention is demonstrated as an opening part formation method of the cylindrical knitted fabric which concerns on the modification of this invention. 14 (a) and 14 (b) are diagrams showing a glove 5A according to Modification 6 of the present invention in order from the back side and the palm side, and FIG. 15 is an expanded view showing the glove 5A shown in FIG. FIG. In the opening forming method of the glove 5A of this modified example, the reinforcing part knitting process and the opening forming process are different from the opening forming method of the glove 5 of the modified example. The other tubular part knitting process, the elastic yarn insertion process, and the heat setting process are the same as the respective processes of the opening forming method of the glove 5 of the modified example.

  In the reinforcing portion knitting step, the reinforcing portion 52 is knitted on all of the five openings 56A to 56E corresponding to five fingers. And in an opening part formation process, in the knitting of the opening cylindrical part 54, five openings 56A-56E are formed by making the part of the course corresponding to the reinforcement part 52 unknitted. In this modification, one reinforcing portion 52 is knitted for all of the five openings 56A to 56E corresponding to five fingers. For example, the reinforcing portion corresponding to the opening 56A of the thumb Three reinforcing portions may be knitted: a reinforcing portion corresponding to the opening portion 56B of the index finger and the opening portion 56C of the middle finger and a reinforcing portion corresponding to the opening portion 56D of the ring finger and the opening portion 56E of the little finger. .

  The opening forming method of the glove 5A of this other modified example can provide the same advantages as the opening forming method of the sock 1, 1A of the present embodiment, and the glove 5A of this modified example can also provide this embodiment. The same advantages as the socks 1, 1A can be obtained.

  DESCRIPTION OF SYMBOLS 1,1A-1E ... Socks (tubular knitted fabric, cylindrical knitted fabric product, bag-shaped knitted fabric product), 2 ... Knitting yarn, 3 ... Toe side part, 5, 5A ... Gloves socks (tubular knitted fabric, cylinder) Knitted fabric product, bag-shaped knitted fabric product), 10, 50 ... cylindrical portion, 12, 52 ... reinforcing portion, 12a, 52a ... knitting end edge, 12b, 52b ... knitting end edge end, 13 ... Heat-sealed yarn, 14, 54 ... Open cylindrical portion, 16, 56, 56A to 56E ... Open portion, 16a ... Knitting end edge, 16b ... End, 16c ... Knitting start edge, 18, 58 ... Elastic yarn Insertion portion, 18s ... elastic yarn, 18t ... knitting yarn of elastic yarn insertion portion.

Claims (12)

An opening forming method for a tubular knitted fabric that forms an opening in the tubular knitted fabric when knitting the tubular knitted fabric using a circular knitting machine,
A reinforcing part knitting step of knitting a reinforcing part for the opening by reciprocatingly rotating the cylinder of the circular knitting machine;
In the knitting by the rotational movement of the cylinder of the circular knitting machine, an opening forming step for forming the opening by making a part of the course corresponding to the reinforcing portion unknitted,
including,
A method for forming an opening of a tubular knitted fabric. In the reinforcing part knitting step, the reinforcing part is knitted using a knitting yarn containing synthetic fibers,
It further includes a heat setting step for performing heat setting after knitting of the tubular knitted fabric is completed.
The opening formation method of the cylindrical knitted fabric of Claim 1. In the reinforcing part knitting step, the reinforcing part is knitted using a knitting yarn including a heat-sealing yarn,
It further includes a heat setting step for performing heat setting after knitting of the tubular knitted fabric is completed.
The opening formation method of the cylindrical knitted fabric of Claim 1. In the reinforcement portion knitting step, the reinforcement portion is knitted by needle knitting.
The method for forming an opening of a tubular knitted fabric according to any one of claims 1 to 3. In the reinforcing portion knitting step, the reinforcing portion is knitted so that the width on the knitting end side of the reinforcing portion is wider than both ends than the width of the opening.
The method for forming an opening of a tubular knitted fabric according to any one of claims 1 to 4. In the knitting by the rotational movement of the cylinder of the circular knitting machine, further includes an elastic yarn inserting step of inserting an elastic yarn into a course corresponding to the knitting start end side of the opening.
The opening formation method of the cylindrical knitted fabric in any one of Claims 1-5.   A tubular knitted fabric product comprising an opening formed by the method for forming an opening of a tubular knitted fabric according to any one of claims 1 to 6, and a reinforcing portion for the opening.   A bag-shaped knitted fabric product having an opening formed by the method for forming an opening of a tubular knitted fabric according to any one of claims 1 to 6, and a reinforcing portion for the opening.   A sock having an opening formed by the method for forming an opening of a tubular knitted fabric according to any one of claims 1 to 6, and a reinforcing part for the opening.   The sock according to claim 9, wherein the opening is located in at least one of an upper part and a lower part of the calf.   The sock according to claim 9, wherein the opening is located in a heel portion. Reverse the knitting part of the sock against the knitting needle of the cylinder of the circular knitting machine and the knitting part of the sole side. Knitting the upper side knitting portion with a knitting needle for
The sock according to claim 10.

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