socks

Abstract

To provide socks that solve the problem that ease of wearing, comfort, feel to the skin, etc. may be affected when a covered yarn having a polyurethane core and covered with polyester is used for the opening part. [Solution] A sock in which rubber thread is inserted and the opening, body, heel, foot, and toe sections are knitted as a single unit, and characterized in that covering thread 10, which is made of polyurethane core thread 13 covered with 100% cotton thread 15, is inserted instead of rubber thread from the opening section to the body section.

Description

[Technical Field]

[0001] This invention relates to socks in which the opening, body, heel, foot, and toe sections are knitted as an integrated unit, and which are characterized by the fact that covering yarn, which is made of polyurethane core yarn covered with 100% cotton yarn, is inserted and knitted from the opening to the body section instead of the rubber yarn that has been used conventionally. [Background technology]

[0002] Conventionally, sock openings have typically been constructed using elastic threads or the like to ensure a tight fit around the ankle. This has the effect of preventing the socks from slipping down. There are a variety of socks designed to be comfortable and easy to put on and take off, and there are particularly many socks with stretchable openings that provide a comfortable fit. For example, see Reference 1.

[0003] The invention described in Document 1 is a five-finger sock comprising a toe portion, an instep portion, a sole portion, a heel portion, a leg portion and an opening portion, which are knitted using a flat knitting machine with knitting yarn and covering yarn, and five toe pouch portions (31-35) are formed in the toe portion (30), while the leg portion (22) and the opening portion (21) are knitted using a 1x1 tuck knit, 2x1 tuck knit or 3x1 tuck knit structure without using rubber yarn in the opening portion, by increasing the stitch density continuously or stepwise from the bottom end of the leg portion (22) to the top end of the opening portion (21) to form a shape that substantially matches the shape of the leg portion.

[0004] This invention makes it possible to provide five-finger socks that can be worn comfortably without causing pain due to the opening digging in, and that have great elasticity in the opening and leg parts. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Utility Model Registration No. 3163472 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the invention of Document 1, when the opening part is made of covered yarn with a polyurethane core and covered with polyester, this may affect ease of wearing, comfort, feel against the skin, etc.

[0007] Therefore, in order to solve this problem, the present invention provides a sock in which the opening, body, heel, foot, and toe sections are knitted as an integrated unit, and which is characterized by the fact that, from the opening to the body, covering yarn made of polyurethane core yarn covered with 100% cotton yarn is inserted instead of rubber yarn. [Means for solving the problem]

[0008] The invention of claim 1 is a sock in which rubber thread is inserted and the opening, body, heel, foot, and toe sections are knitted as a single unit, and characterized in that, from the opening to the body, covering thread made of polyurethane core thread covered with 100% cotton thread is inserted instead of rubber thread.

[0009] The invention of claim 2 is the sock described in claim 1, characterized in that the stitch count of the knitting fabric from the opening to the body is coarser than the stitch count of the knitting fabric in the heel, foot, and toe areas.

[0010] The invention of claim 3 is a sock as described in claim 1 or claim 2, characterized in that the toe area is provided with five pouches for accommodating each of the toes.

[0011] The invention of claim 4 is a sock as described in claim 1 or claim 2, characterized in that the upper end of the opening is folded inward and doubled over, and the front upper end is sewn to the body using covering thread made of polyurethane core thread covered with 100% cotton thread.

[0012] The invention of claim 5 is a sock as described in claim 3, characterized in that the upper end of the opening is folded inward and doubled over, and the upper end is sewn to the body using covering thread made of polyurethane core thread covered with 100% cotton thread. [Effects of the Invention]

[0013] In the invention of claim 1, instead of the rubber thread that has traditionally been used from the opening to the body of the sock, a covering thread made of a polyurethane core thread covered with 100% natural cotton thread is inserted and knitted, which provides a natural fit without affecting comfort or feel.In addition, the socks are easy to put on and take off, making them easy to put on and take off.

[0014] In the invention of claim 2, the stitches from the opening to the body of the sock are wide and loose, making them even easier to put on and take off, making them easier to put on and take off.

[0015] The invention of claim 3 not only makes it easy to put on and take off, but also allows the toes to move freely, giving the feeling of a firm grip on the ground and allowing for stable walking and posture. It also prevents stuffiness between the toes.

[0016] The inventions of claims 4 and 5 can prevent the uncomfortable digging into the leg area where the opening comes into contact, a feeling of pressure, leaving marks, pain, itching, etc. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a knitting structure diagram showing stitches of a knitted fabric into which a covering yarn is inserted in a sock according to the present invention. [Figure 2] FIG. 2 is a side view of the sock of the present invention. [Figure 3] These are photographs of socks with five pouches in the toe area to accommodate each toe and a double-folded pouch-like opening, (a) showing the outer surface and (b) showing the underside of the foot. [Figure 4] This is a perspective view of a sock of the present invention, in which the opening is sewn with a covering thread made of polyurethane core thread covered with 100% cotton thread. [Figure 5] 1 is an enlarged conceptual diagram of the main part of the skin and makeup part (the stitching part of the opening) when wearing the socks of the present invention. [Figure 6] FIG. 10 is a knitting structure diagram showing stitches of a knitted fabric into which rubber yarn is inserted, which is a conventional example. BEST MODE FOR CARRYING OUT THE INVENTION

[0018] The present invention is a sock 1 that is knitted integrally with the opening 2, body 3, heel 5, foot 6, and toe 7. The main feature is that, instead of rubber thread 50, covering yarn 10, made of 100% cotton yarn 15 covered with polyurethane core thread 13, is inserted and knitted from the opening 2 to the body 3, resulting in a sock 1 that is particularly designed for comfort and ease of putting on and taking off. Below, an embodiment will be described based on the various drawings.

[0019] In one example of a conventional knit structure for sock 1, the stitches are formed by loop-shaped surface yarn 40 that runs vertically, and elastic yarn 50 is knitted into the loops of surface yarn 40 to add elasticity and reinforcement (see Figure 6). The entire sock 1 is knitted from these surface yarns 40 and elastic yarn 50. Note that sock 1 may also be formed by rib knitting, plain knitting, stockinette knitting, or terry knitting.

[0020] 1 is a knitting diagram of the knitted fabric of the present invention, in which a covering yarn 10 called a core spun yarn (CSY) is knitted from the horizontal direction so as to be entangled with a vertically connected loop-shaped face yarn 20. The knitting is repeated such that the covering yarn 10 passes horizontally over the face yarn 20, and then the covering yarn 10, which is the weft yarn, passes under the face yarn 20. The present invention is characterized by the fact that the covering yarn 10, which is made by covering a polyurethane core yarn 13 with 100% cotton yarn 15, is inserted in place of the rubber yarn 50 from the opening portion 2 to the body portion 3.

[0021] Generally, socks 1 are knitted on a sock knitting machine into the following sections: opening 2, body 3, heel 5, foot 6, and toe 7. Materials that can be used to knit socks 1 generally include natural yarns such as silk, cotton, wool, and linen, as well as synthetic yarns such as acrylic, nylon, and polyester.

[0022] Ordinary socks 1 use rubber thread 50 to add a sense of fit, stretch, strength, etc. (See Figure 6). However, the socks 1 of the present invention are constructed without using ordinary rubber thread 50 (natural rubber or synthetic rubber), and are knitted without woven rubber thread 50. However, a covering yarn 10 called core spun yarn (CSY) with polyurethane as the core thread 13, which is a fiber with elastic properties, is used instead of the conventionally used rubber thread 50 (See Figure 1).

[0023] The core yarn 13 is made of polyurethane to ensure the elasticity of the covering yarn 10. The fineness of this core yarn 13 is preferably a slightly thicker 70D (denier) to reduce resistance when putting on the sock 1, provide a natural fit, and ensure the required strength and durability.

[0024] The covering yarn 10 of the present invention is constructed by covering a polyurethane core yarn 13 with 100% cotton yarn 15, and synthetic fibers such as polyester are not used.

[0025] There are no particular restrictions on the fineness of the 100% cotton yarn 15, but here too, it is desirable to use a slightly thicker yarn count of about 21s in order to reduce resistance when putting on the socks 1, achieve a natural fit, and ensure the required strength and durability. There are also no particular restrictions on the number of twists, and this can be adjusted as appropriate depending on the purpose.

[0026] As mentioned above, in this invention, covering yarn 10, which is made of polyurethane core yarn 13 covered with 100% cotton yarn 15, is inserted and knitted from the opening portion 2 to the body portion 3 in place of the conventionally used rubber yarn 50. However, there are no particular restrictions on the area of ​​the body portion 3 where covering yarn 10 is used in place of rubber yarn 50; for example, it may be up to at least one-third of the body portion 3, up to at least half of the body portion 3, or the entire body portion 3.

[0027] The covering yarn 10 used to knit the socks 1 of this invention has a polyurethane core yarn 13 covered (wrapped) with 100% cotton yarn 15, and the inside of the socks 1, which is the part that comes into contact with the skin 100, is also made of covering yarn 10 wrapped with 100% cotton yarn 15, which is a natural fiber. This ensures a natural fit without affecting comfort or feel when wearing the socks 1. Natural fibers such as silk or wool can be used, but 100% cotton yarn 15 is preferable.

[0028] Furthermore, the socks are easy to put on and comfortable to wear, preventing uncomfortable digging into the foot 6, a feeling of pressure, marks, pain, itching, etc. Therefore, the entire body part 3 from the opening 2 can be widely expanded with little force, making them easy to put on and take off. They are particularly beneficial for elderly people and sick people with weakened muscles in their arms and legs.

[0029] With regard to the shape and structure of the opening 2, socks 1 with a single opening 2 and double openings 2 are widely used. With regard to the shape and structure of the toe 7 of the socks 1, rounded toe types (as shown in Figure 2, etc., where the toe 7 is a single rounded container that accommodates all of the toes) and five-toed types (as shown in Figure 3, where there are five pouches 8 that accommodate each toe) are widely used.

[0030] In the opening 2 of the present invention, the area around the opening through which the foot is passed through the sock 1, i.e., the topmost part of the sock 1, can be made single-layered without being folded inward (see Figure 2), or the top end 2b of the sock 1 can be folded inward, doubled, and sewn together to form a bag-like folded-over design (see Figures 3 and 4). The toe 7 of the present invention can also be made rounded (see Figure 2) or five-fingered (see Figure 3). A suitable sock knitting machine can be selected to suit the shape and structure of the opening 2 and toe 7.

[0031] In this invention, when the toe portion 7 of the sock 1 is configured with five pouches 8 for accommodating each toe, the toe portion 7 of the sock 1 is configured with pouches 8 for independently accommodating each toe (toe) from the big toe (hallux) to the little toe (fifth toe) (see Figure 3).

[0032] When the toe section 7 is configured with five pouches 8, the pouches 8 for each toe are accommodated along the shape of the toes, which is expected to improve fit and comfort. Also, since each toe can move independently, the natural functions of the foot, such as balance and stability, are improved.

[0033] Automatic sock knitting machines (not shown) are widely used for mass-producing socks 1, and various types of sock knitting machines are used depending on the type of sock 1 to be knitted, such as double-cylinder sock knitting machines, single-cylinder sock knitting machines, and flat knitting machines.

[0034] Generally, socks 1 with a rounded toe section 7 are knitted on a single-cylinder knitting machine, but socks 1 with a five-fingered toe section 7 are knitted in sections, with the knitting up to the toe section 7 (five-fingered) being done on another knitting machine such as a flat knitting machine, and the knitting up to the opening section 2 being done on a single-cylinder knitting machine.

[0035] Socks 1 with rounded toe section 7 and single opening section 2 are knitted starting from opening section 2 and are knitted up to toe section 7, with the tip of toe section 7 finally knitted close. Socks 1 with rounded toe section 7 and double (folded) opening section 2 are also knitted starting from opening section 2 and are knitted up to toe section 7, with the tip of toe section 7 finally knitted close. These are mainly knitted on a single-cylinder knitting machine, but the knitting flow for socks 1 with rounded toe section 7, where knitting starts from opening section 2, will be briefly explained below.

[0036] Here, the K-type single-cylinder sock knitting machine has a structure in which knitting needles are arranged in grooves of a rotating cylindrical cylinder so that they can move up and down, and the knitting needles fitted into grooves arranged in the circumferential direction of one cylinder move up and down to knit socks 1. Of course, one sock 1 may be partially single knit (body portion 3, etc.) and partially double knit (heel portion 5, etc.).

[0037] When the opening portion 2 is a single layer (single), knitting starts from the point corresponding to the top end of the sock 1, and knitting continues without turning back, and then the body portion 3 is knitted.

[0038] When fastening the straight-shaped opening 2, an appropriate method such as plunging or crocheting can be selected taking into consideration prevention of fraying of the knitted fabric, beautiful finish, fit, manufacturing efficiency, etc.

[0039] When the opening 2 has a folded (double) specification, knitting also starts from the part that corresponds to the top end of the sock 1, but after a certain amount of knitting, that part is folded twice and this folded part is sewn together to complete the double-folded bag-shaped opening 2. In this way, the opening 2 is knitted first, and then the body part 3 is knitted.

[0040] The double folded back opening 2 is also sewn at the same time as the sock 1 (knitted fabric) is knitted on the K-type single-cylinder sock knitting machine. In this way, sewing of the opening 2 proceeds simultaneously with knitting of the knitted fabric, which improves the efficiency of the work process and provides a consistent finish.

[0041] When the upper end 2b (of the knitted fabric) is folded inward at the top of the sock 1 to partially double the knitted fabric on the upper end 2b side, and the upper end 2b is sewn to the body 3 to form a bag-shaped opening 2, the opening 2 may also be sewn with a covering yarn 10 (CSY) in which a core yarn 13 made of polyurethane is covered with cotton yarn 15.

[0042] In this way, the make-up part 2a is formed and the opening 2 is completed by doubling up a portion of the knitted fabric on the upper end part 2b side and sewing (sewing) the upper end part 2b with the covering yarn 10 (CSY). In other words, by sewing up the folded-up upper end part 2b, the covering yarn 10 is arranged in the circumferential direction on the inside of the opening 2, and the opening 2 is formed into a bag shape (see Figures 3, 4, etc.). In the make-up part 2a of the double-folded bag-shaped opening 2, the core yarn 13 made of polyurethane may also be covered with 100% cotton yarn 15.

[0043] This double-folded opening 2 is widely used because it improves the fit and comfort of the sock 1 when worn, prevents it from slipping off, prevents it from sagging, improves the durability of the sock 1 itself, and reduces the feeling of tightness. As shown in Figure 5 and other figures, the covering yarn 10 is located at the tip of the inside of the opening 2, so that the covering yarn 10 comes into contact with the skin 100. This provides a natural wearing feel without affecting the comfort or feel of the sock.

[0044] Once knitting of the body portion 3 is complete, the heel portion 5 is knitted next. Then, the foot portion 6, which is the portion from the instep to the toes, is knitted. Finally, the toe portion 7 is knitted. In this way, a tubular knitted fabric formed over the length from the opening portion 2 to the toe portion 7 is knitted for each foot. Note that when knitting is complete, the toe portion 7 of the sock 1 is an open tubular body, so after this, the toe portion 7 is sewn together using a separate sewing machine or the like (not shown).

[0045] As such, K-type single-cylinder sock knitting machines primarily employ a method of knitting from the opening 2 to the toe 7, and differ from knitting machines of the type that knit from the toe 7. That is, K-type single-cylinder sock knitting machines are capable of knitting socks 1 with a single (single) specification in which the toe 7 is rounded and the opening 2 is not folded over twice, as well as socks 1 with a bag-like structure in which the toe 7 is rounded and the opening 2 is folded over twice. However, many knitting machines are not designed to knit the toe 7 of socks 1 in which the toe 7 is knitted from a five-finger pouch 8. For this reason, socks 1 knitted from a five-finger pouch 8 are also knitted using other knitting machines, such as flat knitting machines (hereinafter referred to as "flat knitting machines" for convenience). An example of the knitting flow for a sock 1 with a five-finger toe 7 will be briefly described below.

[0046] In the case of a five-finger sock 1, the toe section 7 is knitted, and after changing the sock knitting machine, the part behind the toe section 7 (foot section 6 and beyond) is also knitted, and the entire sock 1 is completed.

[0047] First, the pouch 8 for the five fingers in the toe portion 7 is knitted using a flat knitting machine. Specifically, the portion for accommodating the big toe is knitted into a tubular body formed to a desired length, then the portion for accommodating the index finger is knitted into a tubular body formed to a desired length, and finally the portion for accommodating the little toe is knitted into a tubular body formed to a desired length, thereby knitting up to the base of each finger (the base of each finger). In this way, knitting begins from the tip of each finger in the pouch 8 for the five fingers, which is the toe portion 7, and is interrupted when knitting reaches the base of each toe. For convenience, this portion (the state in which each tubular body for accommodating each of the five fingers is connected up to the base of the toes) will be referred to below as the "five-toe portion."

[0048] Next, the five-toe portion is removed from the flat knitting machine on which it was knitted and attached to a K-type single-cylinder sock knitting machine, which is separate from the flat knitting machine. Specifically, the knitting needles of the single-cylinder knitting machine are manually attached to the stitches at the base of each toe of the knitted five-toe portion.

[0049] Once the bases of the toes in the five-toe portion are attached to the knitting needles of the single-cylinder knitting machine, the single-cylinder knitting machine begins knitting the main body of the sock 1, from the foot portion 6 onwards, which continues to the five-toe portion. Specifically, knitting begins from the bases of the toes in the five-toe portion, knitting the foot portion 6, heel portion 5, body portion 3 and opening portion 2 in that order, knitting them into a cylindrical shape just like a normal sock. Through these steps, a sock 1 is completed, with the toe portion 7 knitted from the five-toe pouch 8.

[0050] In this embodiment, the knitting of the sock 1 in which the toe portion 7 is knitted from the pouch body 8 for five fingers has been described using two types of sock knitting machines, a flat knitting machine and a single-cylinder knitting machine, but it may also be knitted using a single type of sock knitting machine. Also, instead of a method in which the toes are knitted in order from the big toe, a method in which the five toes are knitted simultaneously from the tips of the toes may also be used.

[0051] The knitting density of the fabric from the opening portion 2 to the body portion 3 may be coarser than the knitting density of the fabrics of the heel portion 5, foot portion 6, and toe portion 7. There are no particular restrictions on the range of the body portion 3 where the knitting density is coarser than the knitting density of the heel portion 5, foot portion 6, and toe portion 7, and it may be, for example, up to at least one-third of the body portion 3, up to at least half of the body portion 3, or the entire body portion 3.

[0052] For example, loose knitting without tension from the opening 2 to the body 3 results in a coarse stitch density, which makes it easier to widen the opening 2, resulting in a more comfortable and relaxed fit. It also prevents uncomfortable digging into the foot 6, pressure, marks, pain, itching, and other discomforts. This allows the entire opening 2 to be widened with minimal effort, making it easy to put on and take off. This is particularly beneficial for elderly people and sick people with weakened limbs. Knitting the heel 5, foot 6, and toe 7 with strong tension results in a finer stitch density, which enhances stretch and fit. Furthermore, a coarser stitch density can be achieved by using a thicker covering yarn 10, or a finer stitch density can be achieved by using a thinner covering yarn 10.

[0053] In this way, by loosening the stitch tension or using a thicker yarn to knit the sock 1, the stitch density of the knitted fabric from the opening portion 2 to the body portion 3 is made coarser than the stitch density of the knitted fabric from the heel portion 5, foot portion 6, and toe portion 7, resulting in a fluffy texture. Also, by using a thinner yarn to knit the sock 1 or tightening the stitch tension, the stitch density of the knitted fabric from the heel portion 5, foot portion 6, and toe portion 7 is made finer than the stitch density of the knitted fabric from the opening portion 2 to the body portion 3, resulting in a finer, denser, and firmer texture.

[0054] Generally, on a K-type single-cylinder sock knitting machine, knitting begins at the opening section 2. On the other hand, on other knitting machines, such as flat knitting machines, knitting generally begins at the toe section 7. This is due to the structure and knitting function of each knitting machine, and an appropriate knitting machine can be selected depending on the specifications of the sock 1.

[0055] Although the present invention has been described above based on each embodiment, the present invention is not limited to the above-mentioned embodiments, and modifications may be made within the scope of the spirit of the present invention, and the techniques described in each embodiment or other known or well-known techniques may be combined. Furthermore, various modifications and other forms may be made depending on the design, etc., as long as the same effects as the present invention can be achieved.

[0056] Although each embodiment is illustrated in each figure, some configurations have been omitted or simplified to make the figures easier to understand, and therefore the present invention is not limited to the illustrated embodiments. [Explanation of symbols]

[0057] 1: Socks 2: Opening 2a: Makeup department 2b: Upper end 3:Body part 5: Heel 6: Feet 7: Toe area 8: Bag body 10: Covering thread 13: Core thread 15: Cotton thread 20: Surface thread 40: Surface thread 50: Rubber thread 100: Skin

Claims

1. A sock in which rubber thread is inserted and the opening, body, heel, foot, and toe sections are knitted integrally, The socks are characterized in that a covering yarn made of a polyurethane core yarn covered with 100% cotton yarn is inserted in place of the rubber yarn from the opening part to the body part and knitted.

2. 2. The sock according to claim 1, wherein the knitting density of the knitting fabric from the opening portion to the body portion is coarser than the knitting density of the knitting fabrics of the heel portion, the foot portion, and the toe portion.

3. 3. The sock according to claim 1, wherein the toe portion is provided with five pouches for accommodating the respective toes.

4. The upper end of the opening is folded inward and doubled over, 3. The sock according to claim 1, wherein the upper end is sewn to the body using a covering yarn in which a core yarn made of polyurethane is covered with 100% cotton yarn.

5. The upper end of the opening is folded inward and doubled over, 4. The sock according to claim 3, wherein the upper end is sewn to the body using a covering yarn in which a core yarn made of polyurethane is covered with 100% cotton yarn.

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