TWM620964U - Invisible socks - Google Patents

Abstract

This creation reduces the dislocation and shedding of invisible socks. The invisible socks (1) have: a body (1), which includes a toe part (2) covering the toe of the foot (F), two side parts (5, 6) covering the two sides of the foot, and The heel part (3) of the heel and the bottom of the foot (4) covering the sole of the foot, and on the opposite side of the bottom of the foot is formed a sock mouth (7) for the foot to enter and exit; and a low stretch part (9), which It is arranged on at least one of the above-mentioned two side portions and has lower flexibility than the above-mentioned main body.

Description

Invisible socks

This creation is about a kind of invisible socks, more specifically, it is about a kind of invisible socks that can reduce dislocation or fall off.

In recent years, a variety of invisible socks have been circulating in the market to reduce the dislocation and fall off caused by walking. These invisible socks mostly increase frictional resistance or provide a stop function due to the attachment of anti-skid parts or fabric on the sock mouth or heel, thereby reducing misalignment and shedding.

For example, Patent Document 1 discloses a sock that is tied to a part of the heel covering the heel and the extended knitted fabric covering the side of the foot, and knitted by forming high stretch elastic yarns into loops.

In addition, Patent Document 2 discloses an invisible sock in which the instep, heel, and sole are formed of stretchable fabric. In the invisible socks, the elastic fabric, which is not easily stretched compared with the elastic fabric on the back of the foot, is used to form the sole abutment surface that abuts against the sole of the foot, thereby improving the conformability to the foot. [Prior technical literature] [Patent literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2018-59245 [Patent Document 2] Japanese Patent Laid-Open No. 2019-143268

[The problem to be solved by the creation]

However, during walking, the highly stretchable part of the sock described in Patent Document 1 may be excessively stretched. In this case, the sock cannot be closely attached to the heel and will be misaligned.

In addition, in the invisible sock described in Patent Document 2, when walking, the heel portion and the instep are pulled by the sole side of the foot, and the cloth may be caught on the sole side of the foot, causing dislocation and falling off. In addition, the creation described in Reference 2 is not suitable for shallow-wear type invisible socks that expose the instep as a whole.

The purpose of one form of this creation is to reduce the dislocation and shedding of invisible socks. [Technical means to solve the problem]

In order to solve the above problems, the invisible sock of one form of this creation has: a body, which includes the toe part covering the toe of the foot, two side parts covering the two sides of the foot, the heel part covering the heel of the foot, and The bottom of the foot covering the sole of the foot, and on the opposite side of the bottom of the foot, a sock mouth for the foot to enter and exit is formed; Ontology. [The effect of creation]

According to one form of this creation, the dislocation and shedding of invisible socks can be reduced.

[Embodiment 1] <Constitution of Invisible Socks 100> Hereinafter, an embodiment of this creation will be described in detail. FIG. 1 is a schematic diagram showing the invisible socks 100 according to Embodiment 1 of the present creation. The symbol 101 in Figure 1 represents the state of the two-piece sewing type invisible socks 100 viewed from the little finger side of the sole 4 of the foot, and the symbol 102 in Figure 1 represents the state of the knitted type invisible socks 100 viewed from the thumb side. Diagram of the state.

The invisible sock 100 covers at least a part of the sole and side peripheral surface of the wearer's foot F. As shown in Figure 1, the invisible sock 100 has a body 1. The body 1 includes a toe portion covering the toe of the foot F, a heel portion 3 covering the heel of the foot F, a sole covering the sole of the foot F 4, and a portion covering the sole of the foot F. Two side parts 5 and 6 on both sides. The two side parts 5 and 6 refer to the inner side part (side part) 5 covering the side of the thumb side and the outer side of the side covering the little finger side of the foot F Side part (side part)6. In the main body 1, an opening 7 is formed on the opposite side of the bottom of the foot 4 through which the foot F enters and exits when the invisible sock 100 is put on and taken off. In addition, at least a part of the two side portions (the inner side portion 5 and the outer side portion 6) of the main body 1 is provided with a low-stretch portion 9 having a lower elasticity than the original cloth of the main body 1. The low-stretch portion 9 will be described in detail below. In the invisible socks 100, by pulling the heel part 3 to the toe part 2 side by the low-stretch part 9, the misalignment and fall-off are reduced.

The invisible sock 100 only needs to cover the foot F and expose at least a part of the instep of the foot F, and its shape is not particularly limited. For example, the invisible socks 100 may be shallow-wear type invisible socks, and the socks 7 are formed in such a way that the instep of the foot F is exposed as a whole, or it may be a deep-mouth type invisible socks, in which the instep of the foot F is relatively less exposed. Also, for example, the invisible socks 100 may also be a five-finger type, a split-toe type, or a type in which a part of the wearer's toes is exposed. In addition, the invisible socks 100 may be in a symmetrical shape, or may be invisible socks in an asymmetrical shape that matches the shape of the left and right feet F.

When walking, the sole of the foot touches the ground, and when the arch of foot F bears the weight of the wearer, the arch of the foot sinks. Conversely, when the heel and sole are lifted, the arch of the foot returns to its original height (windlass mechanism). Here, when the heel is lifted and the arch of the foot is lifted, if the side portions 5 and 6 of the invisible socks 100 are separated from the side surface of the foot F, the adhesion becomes poor and it is easy to fall off. Therefore, the length of the side portions 5 and 6 in the foot height direction is preferably more than half of the height of the scaphoid bone when the foot is on the ground. In this case, the invisible socks 100 will always be in close contact with the side of the foot F during walking, so that the wearing feeling can be improved.

As shown in the symbol 101 in FIG. 1, the invisible socks 100 are sewing-type invisible socks formed by sewing multiple pieces of fabric. In the legend of reference numeral 101 in Fig. 1, it shows a so-called two-piece invisible sock 100 obtained by sewing two sheets of fabric. In the invisible sock 100 shown in the figure, the main body 1 of the invisible sock 100 is formed by sewing the original cloth forming the sole 4 and the original cloth forming the toe portion 2, the heel portion 3, and the two side portions 5, 6. In addition, as shown in the diagram of symbol 102 in FIG. 1, the invisible socks 100 may also be knitted type invisible socks which are continuously knitted by a circular knitting machine for socks. When the invisible hosiery 100 is a knitted type, it is knitted as a whole. Therefore, as shown in the figure, the invisible hosiery 100 does not have a sewing line that separates each part. When the invisible socks 100 is a sewn type of invisible socks, for example, an uncut fabric (free-cut fabric) with a cut surface that will not fray is used as the fabric of the invisible socks 100.

In the invisible sock 100, the body 1 except for the low-stretch portion 9 is formed of ordinary fabric. When the invisible socks 100 is a knitted type, for example, the ordinary fabric is knitted by using a single strand of 32/-polyester cotton yarn as the veil and 30/75FTY (Filament Twisted Yarn) as the base yarn. Furthermore, the veil of ordinary fabric can also use wool, rayon, hemp, silk, tencel, lyocell, cotton, polyester, nylon, acrylic fiber, acetate fiber or CSY (Core Spun Yarn, core spun yarn). )Wait. In addition, SCY (Single Covered Yarn), DCY (Double Covered Yarn), CSY, wool-like nylon, or PTT (Polytrimethyleneterephtalate, polytrimethylene terephthalate) can also be used for the base yarn of ordinary green fabric.

When the invisible socks 100 is a sewing type, the ordinary fabric may be, for example, a smooth jersey (yarn of other materials (cotton, wool, etc.) is wound with polyurethane yarn as a shaft, and the resulting yarn (covered yarn, etc.) is used. Woven plain knitted fabric) or Triquette knitted fabric (warp knitted fabric knitted by Triquette warp knitting machine as a kind of warp knitting machine). In addition, the yarn forming the ordinary fabric may be wool, rayon, hemp, silk, tencel, lyocell, cotton, polyester, nylon, or acrylic fiber.

Ordinary fabrics may be used as fabrics for general invisible socks, and the specific composition is not particularly limited. As an example, in a tensile test along the length of the foot (the direction indicated by arrow 10 in the figure of symbol 101 in Fig. 1), when the elongation rate of ordinary fabric under a load of 0 N is set to 0% , Ordinary fabrics are fabrics with an elongation of about 50% to 200% when the load reaches 20 N.

The inner side edge portion 5 and the outer side edge portion 6 of the invisible socks 100 are provided with a low-elasticity portion 9 that has lower elasticity than ordinary fabric. However, the low-elasticity portion 9 may be provided in any one of the inner side portion 5 and the outer side portion 6. When the load reaches 20 N, the elongation of the low-stretch part 9 in the foot length direction is preferably less than 90% of the elongation of the ordinary fabric (body 1) in the foot length direction under the same conditions.

When the elongation of the low-elasticity portion 9 is more than 90% of the elongation of the ordinary fabric, the difference between the elongation of the low-elasticity portion 9 and the ordinary fabric becomes smaller, and the close contact between the invisible socks 100 and the heel 3 cannot be improved. Sex, the effect of restraining dislocation and shedding becomes weaker. Furthermore, when the ordinary fabric is made of a fabric with higher stretchability compared with a general invisible sock knitted fabric, the elongation rate of the low-stretch portion 9 can also be less than 95% of the ordinary fabric with high stretchability.

The greater the difference in elongation between the low stretch part 9 and the normal fabric, the better the adhesion with the heel part 3, but a larger difference may result in uneven color, different shades of color, damage to shape, balance, or Produce wrinkles and so on. Therefore, in consideration of these appearance factors, the elongation of the low-stretch portion 9 is preferably 30% to 90% of the elongation of the ordinary fabric. Furthermore, in consideration of improving the comfort when wearing the invisible socks 100, the elongation of the low-stretch portion 9 is preferably 40% or more and 60% or less of the ordinary fabric. Here, "improving comfort" means improving the overall feeling of the fabric of the foot F and the invisible socks 100, providing a moderate sense of conformity, or reducing the restraint of the toes, etc.

When laid flat, the length of the low-stretch portion 9 in the foot height direction (the direction indicated by the arrow 11 in the figure of the symbol 101 in FIG. 1) is preferably the side portion 5 or the side portion 6 of the low-stretch portion 9 The length in the height direction of the invisible socks 100 (the length between the opening 7 of the invisible socks 100 and the bottom of the foot 4) is more than 20%. When the height of the low stretch portion 9 in the foot height direction is more than 20% of the side 5 or 6 of the invisible socks 100, the invisible socks 100 can be appropriately restrained from dislocation and falling off. However, the height of the low stretch part 9 in the foot height direction is more than 10% of the length of the side part 5 or the side part 6 in the foot height direction of the invisible sock 100 to prevent misalignment and falling off. In addition, a low-stretching portion 9 may also be provided on the sole 4 of the foot. Furthermore, if the low-stretching portion 9 is formed near the toe portion 2, the movement of the toes is restricted, which may impair comfort. Therefore, it is preferable that the low-elasticity part 9 is not formed in the toe part 2.

The low-stretch portion 9 has only to have lower stretchability than ordinary fabric, and its structure is not particularly limited. For example, when the invisible sock 100 is a knitted type, the low-stretch portion 9 can be formed by changing the composition of the yarn used in knitting.

For example, in the invisible socks 100, the low-stretch portion 9 can be formed by changing the general single-ply yarn to a double-ply yarn, or using a yarn with a larger count than that of the ordinary fabric. Specifically, when a single strand of 32/-polyester cotton yarn is used for the veil and 30/75FTY is used for the base yarn as the knitting yarn of the ordinary fabric, for example, the following changes are made to the yarn used, and the stretchability of the knitting is lower than that of ordinary The low stretch part of the fabric 9. The elongation of the low-stretch portion 9 woven with the following yarns is about 40% of the elongation of the ordinary fabric, and the invisible socks 100 can be closely attached to the foot F appropriately. ·Use double-strand 32/-polyester cotton yarn as the veil and 30/75FTY as the bottom yarn. Use single-strand 20/-polyester cotton yarn as the veil and 30/75FTY as the bottom yarn. Below, for example, the low stretch part 9 The other forming methods. When the invisible sock 100 is of a knitted type and the rubber yarn is inserted as a whole to knit, it is also possible to reduce the amount of rubber fed to the part to be the low-stretch part 9 during knitting, thereby reducing the amount of rubber contained in this part, thereby The stretchability is reduced to form the low stretch portion 9. In addition, the low-stretch portion 9 can also be formed by changing the weaving method of ordinary fabric. Specifically, when knitting the invisible sock 100, the tuck structure is added to the part to be the low-stretch part 9, and the cut jacquard is added, or the density of the part to be the low-stretch part 9 is reduced during knitting, thereby The low-elasticity portion 9 is formed. In addition, the low-elasticity part 9 is formed by knitting the part to be the low-elasticity part 9 by using yarns such as hot melt yarn. In addition, a hot-melt sheet or the like may be attached to a portion of the invisible sock 100 that is entirely knitted with ordinary yarn to become the low-stretch portion 9 to form the low-stretch portion 9.

In addition, when the invisible socks 100 is a sewing type, the low-stretch portion 9 can also be formed by using a fabric with lower stretchability than ordinary fabric as the part to be the low-stretch portion 9. For example, a fabric using a hot melt yarn can be used as a fabric with lower stretchability. In addition, after the invisible sock 100 is made, a low-stretchable material such as a hot-melt resin sheet may be attached to the part to be the low-stretch portion 9 to form the low-stretch portion 9. As the material of the hot-melt resin sheet, for example, silicon, EVA resin (Ethylene Vinyl Acetate Copolymer), TPU resin (Thermoplastic Polyurethane), nylon or PP (Polypropylene) can be used. In addition, the entire invisible socks 100 can also be made of ordinary fabric, and an original fabric (co-fabric) that is the same as the ordinary fabric is next to the part to be the low-stretch part 9 to form the low-stretch part 9. At this time, it is also possible to use an anti-stretch tape or a tape with lower stretchability for bonding.

In addition, when the invisible socks 100 are of both a knit type and a sewing type, the low-elasticity part 9 can be formed by stitching with a sewing machine, embroidering, or printing. .

The low-elasticity portion 9 may be respectively arranged on the inner side portion 5 and the outer side portion 6 of the invisible sock 100, or may be provided only on either the inner side portion 5 or the outer side portion 6 of the invisible sock 100. That is, the low-elasticity portion 9 is arranged on at least one of the two side portions 5 and 6. In addition, the elongation rates of the low-elasticity portion 9 of the inner side edge portion 5 and the low-elasticity portion 9 of the outer side edge portion 6 may be the same or different. When walking, the amount of activity on the little finger side of the thumb side of the foot F is different, so the force applied to the invisible socks on the thumb side and the little finger side is also different. Therefore, the elongation rate of the low-elasticity portion 9 of the inner side portion 5 and the low-elasticity portion 9 of the outer side portion 6 can also be appropriately selected according to the force applied to the invisible sock.

In addition, the low-elasticity portion 9 may be a rectangular area as shown in FIG. 1, or may be an area of other shapes. In the invisible sock 100, it is preferable that the entire inner side portion 5 and/or the outer side portion 6 is a low-stretch portion 9. By increasing the size of the low-elasticity part 9, the pulling force on the heel part 3 can be improved. In addition, when the end of the low-elasticity portion 9 on the side of the sock mouth 7 is set as the first end L, and the end of the low-elasticity portion 9 on the side of the sole 4 is set as the second end O, it is preferable The length of the first end L side of the low-stretch portion 9 in the leg length direction is greater than the length of the second end O in the leg length direction. By making the length of the sole side of the low stretch part 9 in the foot length direction shorter than the length of the side parts 5 and 6, it is not easy to hinder the movement of the wearer's foot F during walking.

In addition, the invisible sock 100 has an anti-slip portion 8 for suppressing misalignment. The anti-slip portion 8 may be formed with a higher friction force on the skin of the foot F than the body 1, and the material and shape are not particularly limited. For example, the non-slip portion 8 is a band-shaped member formed of silicon. In addition, the position where the anti-slip portion 8 is provided may be a position that can reduce the misalignment of the invisible socks, and it is not particularly limited. For example, as shown in FIG. 1, the non-slip part 8 may also be provided on the heel part 3. Furthermore, the non-slip part 8 shown in FIG. 1 is provided on the inner side of the heel part 3.

<Effects of the invisible socks 100> When the user wears the invisible socks 100 while walking, in the low-stretch part 9, the degree of extension of the fabric is low, so the heel part 3 is received from the inner side 5 and/or the outer side 6 The force of pulling the toe 2 side in the direction of the length of the foot. Thereby, the heel part 3 is in close contact with the heel of the wearer's foot F. Therefore, the possibility of misalignment and falling off of the invisible socks 100 is reduced. Generally, the greater the movement of the foot F, the higher the possibility of dislocation and shedding of the invisible socks. In contrast, in the invisible socks 100, the greater the movement of the foot F, the greater the difference in elongation between the low-elasticity part 9 and the body 1, and the higher the pulling force of the low-elasticity part 9 on the heel part 3 becomes. Therefore, the fabric of the heel part 3 is more closely connected to the heel of the foot F. In this way, in the invisible socks 100, even if the foot F is active, the heel portion 3 can be pulled to make the fabric and the foot F tightly contact each other, so that the possibility of misalignment and falling off can be reduced.

Generally, in invisible socks, when the knitted fabric is pulled along the length of the foot, the knitted fabric shortens in the height direction of the foot. In particular, the side parts 5 and 6 corresponding to the center of the invisible sock in the length direction of the foot, which are equal to the larger contraction in the height direction, so the length (height) of the side parts 5 and 6 in the height direction of the foot becomes shorter (Becomes lower). The lower the height of the side parts 5 and 6 will cause the upper edge of the heel part 3 to also become lower, making the invisible socks easy to fall off. For the above reasons, it is preferable that the length variation of the side portions 5 and 6 in the foot length direction and the foot height direction is small.

In the invisible sock 100, a low-stretch portion 9 is provided on the side portions 5 and 6. In this way, the extension of the side portions 5 and 6 in the length direction of the foot is restricted, and therefore the contraction in the height direction of the foot is also reduced. Therefore, the invisible sock 100 can maintain the height of the side portions 5 and 6, thereby suppressing falling off.

In addition, when the low-stretching portion 9 is located at the periphery of the sole, the low-stretching portion 9 applies pressure to the sole of the foot F moderately. Thereby, it can be expected that the invisible sock 100 has the effect of supporting the sole of the foot, so that the fatigue of the foot F can be reduced, and walking becomes easier.

The socks covering the instep and ankles of the foot F can reduce misalignment and fall off by applying pressure to the ankles of the foot F. In contrast, invisible socks that do not cover the ankles cannot be dislocated and falling off by the same method. Here, the structure in which the invisible socks 100 is in close contact with the foot F by applying a pulling force to the heel portion 3 can effectively reduce misalignment and fall off, so that there is no need to apply pressure to the ankle. Therefore, this creation is particularly suitable for feet without covering Invisible socks on the wrist. In addition, the invisible sock 100 can reduce the possibility of leaving pressure marks on the foot F by making the surface of the heel part 3 and the foot F closely contact.

In addition, the previous invisible socks use a stronger sock mouth rubber to prevent misalignment and fall off. Here, since the invisible sock 100 makes the heel part 3 and the foot F in close contact with the entire knitted fabric, it is possible to suppress misalignment and falling off by the sock mouth rubber with a weaker restraint force. Therefore, the pressure exerted by the rubber of the sock mouth on the foot F can be reduced, and the comfort can be improved.

In addition, the opening 7 of the invisible socks of the shallow wear type is usually larger, which is prone to dislocation and fall off. Here, the invisible socks 100 increases the adhesion to the wearer’s heel by making the low-stretch portion 9 larger than when the low-stretch portion 9 is small. Therefore, even if the invisible socks 100 is a shallow wear type, Reduce dislocation and shedding.

In addition, the invisible sock 100 is closely connected to the foot F by the entire fabric or knitted fabric of the invisible sock 100. Therefore, compared with the previous invisible socks, the size of the non-slip portion 8 can be reduced. Thereby, the burden on the skin caused by the non-slip part 8 can be reduced, and the itching or rashes on the skin can be reduced. In addition, compared with the previous invisible socks, the invisible socks 100 can reduce the material used to form the non-slip portion 8, so that the manufacturing cost can be reduced.

<Variations> FIG. 2 is a diagram showing five sewing types of invisible socks 100A as a variation of the invisible socks 100. The larger the size of the low-stretch portion 9 is, the higher the adhesion effect to the foot F is. Therefore, in the invisible socks 100A, the first end L is preferably arranged along the periphery of the socks 7 and on the side of the periphery of the socks 7 The sides 5 and 6 are arranged over the entire length. As an example, as shown in FIG. 2, when the invisible socks 100A are five invisible socks that include the toe portion 2, the heel portion 3, the sole 4, the inner side portion 5, and the outer side portion 6 of the fabric, The fabrics of the inner side 5 and the outer side 6 use low-stretch fabrics. In this case, the entire inner side edge portion 5 and the outer side edge portion 6 can be the low-stretch portion 9. Here, the first end portion L is arranged along the periphery of the crotch 7 and is arranged over the entire length of the inner side portion 5 and the outer side portion 6. Thereby, the pulling force to the heel part 3 can be improved, and therefore, the misalignment and falling off of the invisible socks 100A can be reduced.

In addition, in the above-mentioned embodiment, the same fabric is used as the normal fabric of the invisible socks 100 for each part, but the type of the normal fabric may be appropriately changed according to the position of the invisible socks 100. For example, in the invisible socks 100, the sole 4 may be formed of cotton jersey and the heel 3 may be formed of nylon. Thereby, the tightness to the foot F and the wearing feeling can be improved.

FIG. 3 is a diagram showing a hidden sock 100B having the toe part 2 as the low-stretch part 9 as a modification of the invisible sock 100. In the invisible sock 100B, the toe part 2 is also provided with a low-stretch part 9. In this case, a pulling force is also applied from the toe portion 2 to the heel portion 3, so that the tightness to the foot can be improved. For example, as shown in FIG. 3, consider the case where the invisible socks 100B is a three-piece sewing type invisible socks, which are sewn by the sole 4, the toe portion 2 including the side surface, and the three pieces of fabric forming the heel portion 3. In this case, the fabric used as the toe part 2 including the inner side edge part 5 and the outer side edge part 6 can use a material with low stretchability.

FIG. 4 is a diagram showing the shapes of low-stretch parts 9A to 9L that are different from the shapes exemplified in the first embodiment. In the invisible sock 100, the length of the low-stretch portion 9 in the toe height direction may be more than 1/5 of the length of the invisible sock 100 in the toe height direction, and its shape is not particularly limited. For example, as shown by reference numeral 401 in FIG. 4, the low-stretch portion 9C may have a rectangular shape with the leg length direction as the long side direction and the leg height direction as the short side direction. In addition, as shown by reference numeral 402 in FIG. 4, the low-stretch portion 9D may have an inverted triangle shape with one edge of the socks 7 and one vertex located on the bottom 4 side in the height direction. In addition, as shown by reference numeral 403 in FIG. 4, the low-stretch portion 9E may have a semicircular shape along the sock mouth 7 with a straight portion. Moreover, as shown by the symbol 404 in FIG. 4, the low-stretch portion 9F may have an inverted pentagonal shape in which one side in the long side direction of the rectangular shape overlaps with one side of the triangle. In addition, as shown by the symbols 405 and 406 in FIG. 4, the low-elasticity portion 9G or the low-elasticity portion 9H is a shape formed by arranging a plurality of inverted triangles with one side in contact with the sock mouth 7 in the leg length direction (symbol In the example of 405 and 406, there are 2 or 3). In addition, as shown in the symbols 407 and 408 in FIG. 4, the low-stretch portion 9I or the low-stretch portion 9J has a shape formed by arranging a plurality of straight portions along the semicircle of the sock mouth 7 along the foot length direction (symbols 407 and In the case of 408, there are 2 or 3). In addition, as shown by the symbol 409 in FIG. 4, the low-stretch portion 9K has an inverted pentagonal shape, and one side of the inverted pentagonal shape is connected to the sock mouth 7, and the longest diagonal line is not connected to the sock mouth 7 but is opposite. Parallel to the sock mouth 7. In addition, as shown by reference numeral 410 in FIG. 4, the low-stretch portion 9L may have an elliptical shape.

FIG. 5 is a diagram showing the shapes of the low-stretch parts 9M to W which are also different from the example shown in FIG. 4. As shown in FIG. 5, the low-elasticity portion 9 may also have a different shape from the example shown in FIG. 4. For example, as shown by the symbol 501 in FIG. 5, the low-elasticity portion 9M may be in the shape of a right-angled triangle with a right-angled portion formed on the heel 3 side, or as the low-elasticity portion 9N as shown by the symbol 502 in FIG. The right-angled portion is formed in the shape of a right-angled triangle on the toe 2 side. Moreover, as shown by the code|symbol 503 of FIG. 5, the low-elasticity part 90 may be a shape which combined the low-elasticity part 9M and the low-elasticity part 9N.

As shown by the symbol 504 in FIG. 5, the low-elasticity portion 9P has a checkered shape including the low-elasticity portion 9P and ordinary fabric. Furthermore, the low-stretch portion 9P in the shape of a checkered pattern may also extend to the sole 4 of the foot. In addition, as shown by the symbol 505 in FIG. 5, the low-stretch portion 9Q is formed from the toe portion 2 and the heel portion 3 to the center of the side portions 5 and 6 from the side portions 5 and 6 to the sole 4 side. The shape of the slanted striped pattern. Among them, as shown by the symbol 506 in FIG. 5, the low-elasticity portion 9R is a shape formed by inverting the low-elasticity portion of the low-elasticity portion 9Q and the normal fabric portion.

As shown by the symbol 507 in Fig. 5, the low-elasticity part 9S has the following shape: in addition to the low-elasticity part 9M, a low-elasticity part of the same shape as the low-elasticity part 9M is provided on the sole 4 side and the heel 3 side. Department. Furthermore, as shown by the symbol 508 in FIG. 5, the low-elasticity part 9T may have a shape in which in addition to the low-elasticity part 9S, a rectangular low-elasticity part is further provided on the sole 4 side.

As shown by the symbol 509 in Fig. 5, the low-elasticity part 9U has the following shape: two rectangles are respectively provided at the position where it is in contact with the side parts 5 and 6 and the position where it is not in contact with the side parts 5 and 6 shape. In addition, as shown by reference numeral 510 in FIG. 5, the low-elasticity portion 9V may have a shape in which the low-elasticity portion 9U extends in the leg length direction and is provided over the entire length of the side portions 5 and 6.

As shown by the symbol 511 in FIG. 5, the low-elasticity portion 9W may have an inverted trapezoidal shape with the side portions 5 and 6 as the long sides and the foot bottom 4 as the short sides. Symbol 512 in FIG. 5 is a diagram showing the low-stretch portion 9W in the expanded state. As shown by the symbol 512 in FIG. 5, the low-elasticity portion 9W is provided on the two side portions 5 and 6 with the same inverted trapezoid shape and is equal to the hourglass shape connected to the center of the sole 4 of the foot. In addition, the low-elasticity portion 9 may also be a trapezoidal hexagonal shape with the inverted triangle portion of the low-elasticity portion 9F shown by the symbol 404 in FIG. Furthermore, the shape of the low-elasticity portion 9 is not limited to the above-mentioned shape, and may be other different shapes.

Among the above-mentioned shapes of the low-elasticity portion 9, an inverted triangle (low-elasticity portion 9D), an inverted pentagon (low-elasticity portion 9F), or an inverted trapezoid (low-elasticity portion 9W) is particularly preferable. When the low-elasticity portion 9 has the same shape (the low-elasticity portions 9D, 9F, and 9W), the area of the low-elasticity portion 9 becomes smaller as it approaches the sole 4. Therefore, the degree of hindrance of the movement of the sole of the foot by the low-elasticity portion 9 is reduced. Therefore, when the low-elasticity portion 9 has these shapes, the degree of hindrance of the movement of the foot F by the invisible socks 100 and the restraining force caused by the invisible socks 100 can be reduced, and at the same time, it is possible to suppress falling off.

In particular, it is more preferable that the low-stretch portion 9 has the above-mentioned shape, and the length of the side portions 5 and 6 in the foot height direction is more than half the height of the scaphoid bone when the sole is on the ground. In this case, when the invisible socks 100 is worn, the low-stretch portion 9 becomes a shape along the scaphoid bone of the foot F, and the invisible socks 100 can easily follow the movement of the foot F, thereby more effectively preventing the invisible socks 100 from dislocation and falling off.

The hourglass-shaped low-stretching portion 9W supports the sole of the foot F by applying pressure on the sole of the foot F and exerts the effect of reducing the fatigue of the foot F, so it is particularly preferable. However, when it is formed only on the part where the low-stretch portion 9 and the inner side of the foot F, that is, the inner side portion 5 and the bottom of the foot 4, the low-stretch portion 9 will also press the sole of the foot, so that it can also support the sole of the foot. Effect.

In addition, the low-elasticity portion 9 and the sock mouth 7 may or may not be in contact with each other. For example, when a low-stretch material is attached to the inner side portion 5 and/or the outer side portion 6 as the low-stretch portion 9, the material may be attached at a position separated from the crotch 7.

[Embodiment 2] The following describes another embodiment of this creation. In addition, for the convenience of description, members having the same functions as those described in the above-mentioned embodiments are denoted by the same reference numerals, and the description will not be repeated.

Fig. 6 is a schematic diagram showing the invisible socks 100C according to the second embodiment of the present creation. The symbol 601 in FIG. 6 represents the state where the invisible sock 100C is viewed from the little finger side of the sole 4, and the symbol 602 represents the state where the invisible sock 100C is viewed from the side of the thumb. As shown in FIG. 6, the invisible sock 100C includes: a low-stretching portion 9X, which is provided on the entire side portions 5, 6 and a part of the sole 4; Sex is stronger than the body 1.

In this manual, "strong stretch" refers to: when under force, it stretches more in the width direction of the foot (the direction indicated by the arrow 13 in the figure of the symbol 501 in Fig. 5) than the ordinary cloth, and the stretched state The contraction force is stronger than ordinary fabric. As an example, when the elongation in the foot width direction of the ordinary fabric when the load reaches 20 N is set to 100%, the elongation of the knitted fabric used as the strong stretch portion 12 under the same conditions is preferably higher than 100%. By making the elongation rate of the strong elastic portion 12 relative to the ordinary fabric higher than 100%, the tightness of the invisible socks 100C to the foot F can be appropriately improved.

When the invisible socks 100C is a knit type, as an example, a single strand of 32/-polyester cotton yarn is used as the veil and 40/75 FTY is used as the base yarn, thereby knitting the knitted fabric of the strong stretch part 12. At this time, as an example, the ordinary cloth fabric is knitted using the yarn exemplified in the first embodiment. In this case, the elongation rate of the strong elastic portion 12 relative to the ordinary fabric is 158%, and the invisible sock 100C can be in close contact with the foot F.

As shown in the diagram of symbol 601 in Fig. 6, in the bottom of the foot 4, the low-elasticity portion 9X extends from the line connecting the toe-side end P of the inner side portion 5 and the heel-side end R of the inner side portion 5 to the connection The line (area T) between the toe-side end Q of the outer lateral side portion 6 and the heel-side end S of the outer lateral side portion 6. That is, in the invisible sock 100C, the low-elasticity parts 9 arranged in each of the side parts 5 and 6 are connected to the sole 4 of the foot.

By making the low-elasticity portion 9X into the shape as described above, the pulling force on the heel portion 3 can be increased compared to the low-elasticity portion 9X formed only on the inner side edge portion 5 and the outer side edge portion 6.

A strong elastic portion 12 may be provided on a part of the heel portion 3, or a strong elastic portion 12 may be provided on the entire heel portion 3. In addition, the strong telescopic part 12 may also reach the sole 4. When the area of the strongly stretchable portion 12 is larger, the surface in contact with the heel becomes larger, which is preferable. For example, the strong stretchable portion 12 may also be provided in an area from the bottom of the foot 4 to about half of the height in the foot height direction of the heel portion 3.

As described above, the invisible sock 100C includes the strong elastic portion 12 in at least a part of the heel portion 3. When the wearer wears the invisible socks 100C while walking, the strong stretchable portion 12 is stretched by applying a pulling force to the strong stretchable portion 12 by the low stretchable portion 9X. At this time, the strongly stretchable portion 12 generates contraction force, so it will closely adhere to the heel of the wearer. Thereby, the invisible sock 100C can suppress misalignment and fall off more appropriately than the configuration provided with only the low-stretch portion 9X.

The heel part 3 is the part that is particularly impacted during walking, and is also easily rubbed by shoes. Therefore, in order to make the heel part 3 follow the movement of the foot F and the skin of the foot F, it is better to be formed of a green fabric with strong stretchability than a green fabric with low stretchability.

In addition, a strong telescopic part 12 may also be provided on a part or the whole of the toe part 2. In this case, the low-elasticity portion 9X pulls both the toe portion 2 and the heel portion 3 to be in close contact with the foot F, and therefore the invisible socks 100C can be more effectively prevented from being misaligned and falling off.

<Variations> In the above-mentioned embodiment, the parts of the low-elasticity part 9X and the heel part 3 other than the strong-elasticity part 12 are formed of ordinary fabric, but in the invisible socks 100C, all parts other than the low-elasticity part 9X may be used ( The main body 1) is a strong stretchable part 12 with strong stretchability. As an example, you can also use single-strand 20/- polyester cotton yarn as the veil, 30/75FTY as the bottom yarn to form the low-stretch part 9, single-strand 30/-CSY as the veil, and 30/75FTY as the bottom yarn. To form parts other than the low-elasticity part 9X. Or, you can also use double-strand 32/-polyester cotton yarn or single-strand 20/-polyester cotton yarn as the veil, use 40/75FTY as the bottom yarn to form the low-stretch part 9X, and use single-strand 32/-polyester Cotton yarn is used as the veil, and 40/75FTY is used as the bottom yarn to form parts other than the low-stretch part 9X. Thereby, it is possible to manufacture the invisible sock 100C formed of the fabric with strong stretchability in the part other than the low stretch part 9X.

Also, at this time, it is preferable that the low-stretch portion 9X is formed on both sides of the side portion 5 and the side portion 6 and connected to the sole 4 of the foot. Thereby, in the invisible socks 100C, both the toe portion 2 and the heel portion 3 can be pulled from a larger area near the center in the length direction of the foot, so that the adhesion of the invisible socks 100C to the foot F can be improved.

This creation is not limited to the above implementations, and various changes can be made within the scope of the patent application. The implementations obtained by appropriately combining the technical means disclosed in the different implementations are also included in the technical scope of this creation. [Example]

Hereinafter, an embodiment of this creation will be described. In this embodiment, the invisible sock 100 of the present creation is made, and the degree to which the invisible sock 100 suppresses misalignment during walking is measured.

Determine the use of knitted invisible socks. As the conventional invisible socks, invisible socks (comparative example) that do not have the low-stretch portion 9 and are made of ordinary fabric as a whole are produced. In addition, as the invisible socks 100 of the present creation, the invisible socks 100 (Example 1) in which the length of the low-stretch portion 9 in the toe height direction is 1/3 of the length of the invisible socks 100 in the toe height direction is used (embodiment 1), and low stretch The length of the part 9 in the height direction of the invisible socks 100 is 1/5 of the length of the invisible socks 100 in the height direction of the invisible socks (Embodiment 2). The low-stretch part 9 is formed by sticking a low-stretch fabric.

Ordinary fabric is knitted by using single-strand 32/-polyester cotton yarn as the veil and 30/75FTY as the bottom yarn. In addition, the low-stretch part 9 is knitted by using a double-strand 32/- polyester cotton yarn as a veil and 30/75 FTY as a base yarn.

The measurement is carried out with the wearer wearing sports shoes on each invisible socks. The wearer walks on a treadmill at a speed of 4 km/h for 5 minutes. In addition, the same measurement was performed 3 times in total, and each measurement result and average value were obtained.

第1次(mm) 7.0 4.0 4.0 第2次(mm) 8.0 4.0 7.0 第3次(mm) 12.0 3.0 9.0 平均(mm) 9.0 3.7 6.7 [Table 1] Comparative example Example 1 Example 2 picture

The first time (mm) 7.0 4.0 4.0 The second time (mm) 8.0 4.0 7.0 3rd time (mm) 12.0 3.0 9.0 Average (mm) 9.0 3.7 6.7

Table 1 shows the shape and measurement results of each invisible socks used in the above measurement. The shaded part in the diagram of Table 1 indicates the low-stretch part 9. As shown in Table 1, the invisible socks 100 of Example 1 and Example 2 are more effective in suppressing misalignment than the invisible socks of the comparative example. In addition, the invisible sock 100 of Example 1 in which the low-stretch portion 9 is larger than the invisible sock 100 of Example 1 is more effective in suppressing misalignment.

1: body 2: toe 3: Heel 4: bottom of the foot 5: Inside side part (side part) 6: Outer side part (side part) 7: Socks 8: Anti-slip part 9,9A～9X: Low telescopic part 10: Arrow 11: Arrow 12: Strong telescopic part 100: invisible socks 100A: Invisible socks 100B: Invisible socks 100C: Invisible socks F: Feet L: 1st end O: 2nd end P: Tiptoe side end R: Heel side end Q: Tiptoe side end S: heel side end T: area

Fig. 1 is a schematic diagram showing the invisible socks according to the first embodiment of this creation. Figure 2 is a diagram showing five invisible socks as a variation of invisible socks. Fig. 3 is a diagram showing an invisible socks in which the toe part is set as a low-stretch part as a modification of the invisible socks. Fig. 4 is a diagram showing the shape of the low-stretch portion which is different from the shape exemplified in the first embodiment. Fig. 5 is a diagram showing the shape of the low-stretch part which is also different from the example shown in Fig. 4. Fig. 6 is a schematic diagram showing the invisible socks of the second embodiment.

1: body

2: toe

3: Heel

4: bottom of the foot

5: Inside side part (side part)

6: Outer side part (side part)

7: Socks

8: Anti-slip part

9: Low telescopic part

10: Arrow

11: Arrow

100: invisible socks

F: Feet

L: 1st end

O: 2nd end

Claims (12)

An invisible sock, comprising a body and a low-stretched part. The body includes a toe part covering the toe of the foot, two side parts covering both sides of the foot, a heel part covering the heel of the foot, and a sole covering the foot The bottom of the foot, and on the opposite side of the bottom of the foot, a sock opening for the foot to enter and exit is formed; the low-stretch part is arranged on at least one of the two side parts, and the stretchability is lower than that of the main body. The invisible sock of claim 1, wherein the elongation rate of the low-stretch portion in the length direction of the foot is less than 90% of the elongation rate of the body in the length direction of the foot. The invisible sock according to claim 1 or 2, wherein the length of the low-elasticity portion in the height direction is more than 10% of the length of the side portion where the low-elasticity portion is arranged in the height direction. The invisible sock of claim 1 or 2, wherein when the end of the low-elasticity portion on the side of the sock mouth is set as the first end, and the end of the low-elasticity portion on the side of the sole of the foot is set as the second end The length of the first end in the leg length direction is greater than the length of the second end in the leg length direction. For example, the invisible sock of claim 1 or 2, wherein when the end of the low-stretch portion on the side of the sock cuff is set as the first end, the first end is arranged along the periphery of the sock cuff, and is located at the The above-mentioned side edge portion of the periphery of the sock mouth is arranged over the entire length. For example, the invisible sock of claim 1 or 2, wherein the low-elasticity parts are respectively arranged on the two side edge parts. For example, the invisible sock of claim 6, wherein the low-flexible parts respectively arranged on the two side parts are connected to the bottom of the foot. For example, the invisible sock of claim 1 or 2 further includes a strong stretchable portion, and the strong stretchable portion is disposed on at least a part of the heel portion, and the stretchability is stronger than that of the main body. The invisible sock of claim 8, wherein the strong elastic portion is provided on the entire heel portion. Such as the invisible sock of claim 1 or 2, wherein the above-mentioned present system has a shallow wearing shape, that is, the above-mentioned sock mouth is formed in such a way that the above-mentioned instep is exposed. For example, the invisible sock of claim 1 or 2, which has a non-slip part on the inner side of the heel part, and the friction force of the non-slip part on the skin of the foot is greater than that of the body. Such as the invisible sock of claim 1 or 2, wherein the above invisible sock is continuously knitted by a circular knitting machine for the sock as a whole.

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