JP6964885B2 - socks - Google Patents

Description

The present invention relates to the structure of socks.

In recent years, the number of children with foot problems is increasing. According to Non-Patent Document 1, among 13-year-old junior high school students, 6.6% of boys and 8.7% of girls have hallux valgus in which the angle between the metatarsal bone of the foot and the phalange of the big toe is bent by 30 degrees or more. There are 46.7% of boys and 55.5% of girls in the hallux valgus risk group that is bent more than 20 degrees. According to Non-Patent Document 2, in elementary school students aged 11 to 12, bunions occur in at least one leg in about 30 to 35% of girls and about 10% of boys. At present, the only fundamental treatment method for hallux valgus is surgical treatment such as surgery, and other than that, symptomatic treatment is the only treatment, so prevention is important.

The following Patent Documents 1 to 8 disclose techniques for supporting the foot in order to improve foot troubles such as hallux valgus and improve motor function.

JP-A-2007-100240 Japanese Unexamined Patent Publication No. 2009-41162 Special Table 2009-524744 Special Table 2013-537827 Japanese Unexamined Patent Publication No. 2016-107041 JP-A-2016-204799 Japanese Unexamined Patent Publication No. 2018-32127 Jikkenhei 5-37218 Gazette

Masato Sato, "Daily Pediatric Lower Limbs, Foot Diseases (Part 2) Hallux valgus and hallux valgus," Nihon Medical Shinpo, Vol. 4384, pp. 49-52, May 3, 2008, Nihon Medical Shinposha Kazuhiko Yamashita, "Practical Research on Physical Function Evaluation for Prevention of Sports Injuries for Elementary School Students", 11th "Sports Research Grant Program" Research Content Presentation, October 18, 2013, Kozuki Foundation Foundation

Causes of hallux valgus include deformation of the foot such as pronation of the midfoot and valgus of the heel. Such deformation of the foot can be a risk factor for various foot diseases and decreased motor function in addition to the valgus toe.

Factors that increase the deformation of the foot mainly include developmental problems due to genetic factors, external factors such as exercise and shoes, and injuries. In particular, since the musculoskeletal system of a child's foot is underdeveloped, specifically, the skeletal system in early childhood is formed of cartilage, and the soft joints make it easy to move, and the muscles and ligaments are sufficiently fixed. Because it is difficult to do so, the foot is likely to be deformed. Conversely, due to the underdeveloped musculoskeletal system, proper foot support and proper exercise and care may prevent foot deformity in the future.

In order to form a foot that is hard to deform in the future, the foot is in the growth period from the early childhood when walking with two legs to the development of muscles and the completion of the skeleton (until about 12 years old). It is important to maintain the bones that make up the body in a normal position for as long as possible, and to encourage proper exercise in that state. By holding the bone in the normal position, the necessary joint movement is not hindered, deformation is suppressed, and the formation of the bone is promoted by the movement, and the bone held in the normal position is placed in the normal position. This is because the muscles develop so that they can be supported by. In this way, by preventing the deformation of the foot or correcting the shape of the foot that tends to deform in the child, even if the growth period has passed and the support of the foot is removed. , It becomes difficult for the foot to deform, and there is a high possibility that future foot troubles can be prevented.

However, in any of Patent Documents 1 to 8, the characteristics of the feet of a growing child as described above are not taken into consideration. In particular, for the foot of a child whose musculoskeletal system is underdeveloped and easily deformed, a means for appropriately supporting the so-called pronational foot in which the midfoot part is supination and the heel is valgus is patented. Not disclosed in Documents 1-8.

The present invention has been made in view of the above, and an object of the present invention is to provide socks that can appropriately support to improve or prevent the pronational foot of a growing child.

In order to solve the above-mentioned problems, the socks according to one aspect of the present invention are socks for preventing the rotation of the midfoot, which are formed by knitting a thread and upward from the ankle of the wearer. It has a bag shape including a leg portion that covers, a foot portion that covers the instep and sides of the wearer's foot, and a sole portion that covers the sole of the wearer. The sole portion is in front of the sole portion. The toe region including the end region and covering the vicinity of the wearer's toe, the heel region including the rear end region of the sole and covering the vicinity of the wearer's foot, and the toe region and the heel region. An intermediate region, which is an intermediate region, is provided, and the foot holding portion is formed in the foot region so as to increase in thickness from the outer foot side to the inner foot side, and the end portion of the heel region on the inner foot side. A first side surface holding portion which is arranged in a region toward the foot portion and at least suppresses the extension of the socks in the region or pulls up the end portion of the heel region on the inner ankle side toward the foot portion, and the intermediate region. With a second side surface holding portion, which is arranged in a region extending upward from the outer foot side end of the foot, at least suppresses the extension of the socks in the region, or presses the outer foot side end of the intermediate region. In the vicinity of the boundary between the toe region and the intermediate region, the region excluding the end portion of the sole portion in the left-right direction is provided with a convex portion formed so as to project toward the sole side of the wearer. Is.

The sock may be arranged on the entire sole portion, and may further include a sole holding portion that suppresses the extension of the sock at the sole portion.

In the sock, the heel holding portion is formed by knitting threads continuously with the sole portion, and the number or weight of the threads for knitting the heel holding portion per unit area is changed from the outer heel side to the inner heel side. It may be increased toward.

In the sock, the heel holding portion may include a heel cup that is attached to the sole portion and increases in height from the outer heel side to the inner heel side.

In the sock, the heel holding portion includes a heel cup that is attached to the sole portion and increases in height from the outer ankle side to the inner ankle side, and the sole holding portion and the heel cup include the sole portion. It may be integrally provided on the outside of the.

In the sock, the convex portion is formed by knitting threads continuously with the sole portion, and the number or weight of the threads for knitting the convex portion per unit area is the region around the convex portion. It may be larger than the number or weight per unit area of the yarn to be knitted.

In the sock, the first side surface holding portion includes a first band-shaped member attached to the inner heel-side end of the heel region and a second band-shaped member attached to the outer heel-side end of the heel region. And a connecting member that connects the first band-shaped member and the second band-shaped member.

In the sock, the first side surface holding portion is an elastic modulus of a thread that knits a region other than the strip-shaped region in a strip-shaped region from an end on the inner heel side of the heel region to the foot portion in the foot portion. It may be formed by knitting a yarn having a modulus of elasticity larger than that of the yarn.

In the sock, the second side surface holding portion includes a third band-shaped member attached to the outer ankle-side end of the intermediate region and a fourth band-shaped member attached to the inner ankle-side end of the intermediate region. And a connecting member that connects the third band-shaped member and the fourth band-shaped member.

In the sock, the second side surface holding portion is a thread that knits a region other than the strip-shaped region in a strip-shaped region extending upward from the heel region from the outer ankle-side end of the intermediate region in the foot portion. It may be formed by knitting a thread having an elastic modulus larger than the elastic modulus.

The sock may be formed of an elastic material and may be provided in a region of the sole that covers the arch of the wearer, and may further be provided with an elastic layer that urges the sole of the wearer in the region that covers the arch of the foot.

The sock may further include a non-slip portion provided in a region of the elastic layer including at least the top portion of the elastic layer.

The socks are formed of an elastic material and are provided in a region of the sole of the foot that covers the wearer's first metatarsal head to the fifth metatarsal head, and at least a stretch portion that expands and contracts in the foot length direction. You may prepare further.

According to the present invention, the heel holding portion lifts the inner heel side of the wearer's heel, the first side surface holding portion presses the vicinity of the scaphoid bone, and the second side surface holding portion causes the heel to protrude toward the outer heel side. Since it can be suppressed, it is possible to simultaneously correct the positions and orientations of a plurality of bones that have deviated from the normal positions due to the pronation of the midfoot and the valgus of the heel. Further, by lifting the metatarsophalangeal joint of the wearer by the convex portion, the movement of the joint becomes smooth, and the wearer can promote exercise such as walking. Therefore, the musculoskeletal system is underdeveloped and easily deformed, and it is possible to appropriately support to improve or prevent the pronational foot of a growing child who needs exercise.

It is a perspective view which shows typically the sock which concerns on 1st Embodiment of this invention. FIG. 5 is a plan view of the folded sock shown in FIG. 1 as viewed from the instep side. It is a top view which looked at the folded state of the sock shown in FIG. 1 from the bottom side. It is a side view which looked at the sock shown in FIG. 1 from the inner ankle side (the toe side). It is a side view which looked at the sock shown in FIG. 1 from the outer ankle side (small toe side). It is a side view which shows the state which the inner side surface holding part and the outer side surface holding part were removed in the sock shown in FIG. It is a partially enlarged sectional view in line AA of FIG. It is a partially enlarged sectional view in line BB of FIG. It is a schematic diagram which looked at the pronation foot from the heel side. It is a schematic diagram for demonstrating the action of the sock shown in FIG. It is a schematic diagram for demonstrating the action of the sock shown in FIG. It is a schematic diagram for demonstrating the action of the sock shown in FIG. It is a schematic diagram for demonstrating the action of the sock shown in FIG. It is a schematic diagram for demonstrating the action of the sock shown in FIG. It is sectional drawing which shows a part of the sock which concerns on 2nd Embodiment of this invention. It is a side view which looked at the sock which concerns on 3rd Embodiment of this invention from the inner ankle side (the toe side). It is a partial cross-sectional view which looked at the sock which concerns on 4th Embodiment of this invention from the side of the inner ankle side (the toe side). FIG. 6 is a schematic view of the sole of the sock shown in FIG. 17 as viewed from the inside of the sock. FIG. 5 is a partially enlarged cross-sectional view taken along the line CC of FIG. FIG. 5 is a partially enlarged cross-sectional view taken along the line DD of FIG. It is a schematic diagram for demonstrating the action of the sock shown in FIG. It is a schematic diagram for demonstrating the action of the sock shown in FIG. It is a schematic diagram for demonstrating the action of the sock shown in FIG. It is a schematic diagram for demonstrating the action of the sock shown in FIG. It is a side view which looked at the sock which concerns on 5th Embodiment of this invention from the inner ankle side (the toe side). FIG. 5 is a partially enlarged cross-sectional view showing a heel region shown in FIG. 25. It is a schematic diagram for demonstrating the action of the sock shown in FIG.

Hereinafter, the socks according to the embodiment of the present invention will be described with reference to the drawings. The present invention is not limited to these embodiments. Further, in the description of each drawing, the same parts are indicated by the same reference numerals. The drawings referred to in the following description merely outline the shape, size, and positional relationship to the extent that the content of the present invention can be understood. That is, the present invention is not limited to the shape, size, and positional relationship exemplified in each figure.

(First Embodiment)
FIG. 1 is a perspective view schematically showing a sock according to a first embodiment of the present invention. FIG. 2 is a plan view of the folded sock as viewed from the instep side. FIG. 3 is a plan view of the folded sock as viewed from the bottom side. FIG. 4 is a side view of the sock as viewed from the inner ankle side (toe side). FIG. 5 is a side view of the sock as viewed from the outer ankle side (small toe side). FIG. 6 is a side view showing a state in which the inner side surface holding portion and the outer side surface holding portion (described later) are removed from the sock shown in FIG. FIG. 7 is a partially enlarged cross-sectional view taken along the line AA of FIG. FIG. 8 is a partially enlarged cross-sectional view taken along the line BB of FIG. Here, the socks shown in FIGS. 1 to 8 are made for the left foot. The socks for the right foot are mirror-symmetrical with respect to the socks shown in FIGS. 1 to 8.

As shown in FIGS. 1 to 8, the sock 1 according to the first embodiment of the present invention is a knit made mainly of fibers such as cotton, wool, silk, and synthetic fibers such as nylon and urethane. It has a bag shape including a leg portion 11 that covers the upper part from the ankle of the wearer, a foot portion 12 that covers the instep and sides of the wearer's foot, and a sole portion 13 that covers the sole of the wearer. There is. The leg portion 11, the foot portion 12, and the sole portion 13 can be knitted using a knitting machine or the like. An opening 111 for inserting a foot is provided at one end of the leg portion 11, and a mouth rubber portion 112 is formed around the opening 111.

Here, the shape of the toes of a person's foot is generally longer on the mother toe (first toe) side than on the small toe (fifth toe) side as a whole. Therefore, as shown in FIGS. 2 and 3, the shape of the toe of the sock 1 is matched with the shape of a general toe, and the toe side 1b is made longer than the small toe side 1a. However, since the knit sock 1 has some elasticity, it is not always necessary to lengthen the toe side 1b. For example, when viewed from the upper surface, the shape of the toe of the sock 1 may be flat or may be curved so as to be symmetrical.

As shown in FIGS. 3 to 5, the sole portion 13 includes a toe region 131 including the front end region 13a of the sole portion 13 and covers the vicinity of the wearer's toe, and a rear end region of the sole portion 13. A heel region 132, which includes 13b and covers the vicinity of the wearer's heel, and an intermediate region 133, which is a region between the toe region 131 and the heel region 132, are provided. Generally, the toe region 131 is an region from a line (see FIGS. 2 and 3) facing the tip stitch portion 12a formed on the foot portion 12 to the tip. Further, the heel region 132 is a region near (within several cm) the gore line 13c (see FIG. 5) on the heel side.

The sock 1 further includes a heel holding portion 14, an inner side surface holding portion ( first side surface holding portion) 15, an outer surface holding portion ( second side surface holding portion) 16, and an MP joint holding portion (convex portion) 17. , A sole holding portion 18.

FIG. 7 is a partially enlarged cross-sectional view taken along the line AA of FIG. As shown in FIG. 7, the heel holding portion 14 has a thickness in the heel region 132 from the lateral outer ankle side (left side in FIG. 7) to the inner ankle side (right side in FIG. 7) of the sole portion 13 in the left-right direction. It is formed to increase. In the present embodiment, the heel holding portion 14 is formed by knitting a thread continuously with the sole portion 13. That is, the thickness of the heel holding portion 14 is changed by increasing the number or weight of the yarns forming the heel holding portion 14 per unit area from the outer heel side to the inner heel side.

The inner side surface holding portion 15 is arranged in a band-shaped region from the end on the inner heel side of the heel region 132 toward the foot portion 12, and at least suppresses the elongation of the sock 1 in the strip-shaped region, or suppresses the elongation of the sock 1 or on the inner heel side. By pulling up the end, the scaphoid bone is prevented from collapsing toward the medial ankle.

Here, the strip-shaped refers to "a long stretch with a certain width" (Iwanami Shoten "Kojien", 6th edition, p. 418), but in the present specification, the width in the strip-shaped region must be uniform. Even if there is some variation in the width, it is included in the strip shape as long as it extends longer in the longitudinal direction than in the width direction. Further, when the strip-shaped region is made flat, the end portion in the width direction does not necessarily have to be a straight line. For example, even if the end portion in the width direction is a curved line, the longitudinal direction is longer than the width direction as a whole. If it is in a stretched state, it shall be included in a band shape.

As shown in FIGS. 4 to 6, in the present embodiment, the inner side surface holding portion 15 serves as a connecting member for connecting the two resin bands (belt-shaped members) 151 and 152 and the resin bands 151 and 152 to each other. It is formed by using the hook-and-loop fastener 153. In the present embodiment, in order to enhance the effect of pulling up the end portion on the inner ankle side by the inner side surface holding portion 15, a band (resin band 152) is also provided in the region from the foot portion 12 toward the end portion on the outer ankle side of the heel region 132. , It is supposed to be connected to the band on the inner heel side (resin band 151).

The resin bands 151 and 152 are formed of a flexible band-shaped resin material such as vinyl chloride. One end of one resin band 151 is attached to the end on the inner heel side of the heel region 132 in the sole portion 13. Further, one end of the other resin band 152 is attached to the outer heel side end of the heel region 132 in the sole portion 13. Further, a hook-and-loop fastener that can be engaged with each other is arranged at the other end of the resin band 151 and the other end of the resin band 152. As the connecting member for connecting the resin band 151 and the resin band 152, various members such as hooks and snaps can be applied in addition to the hook-and-loop fastener.

The outer side surface holding portion 16 is arranged in a band-shaped region extending upward from the heel region 132 from the end on the outer heel side of the intermediate region 133, and at least suppresses the elongation of the sock 1 in the strip-shaped region, or or Press down on the outer heel side end. As shown in FIGS. 4 to 6, in the present embodiment, the outer surface holding portion 16 serves as a connecting member for connecting the two resin bands (belt-shaped members) 161 and 162 and the resin bands 161 and 162 to each other. It is formed by using the hook-and-loop fastener 163 of the above. In the present embodiment, in order to enhance the pressing effect of the outer heel side end portion by the outer surface holding portion 16, a band (resin band 162) is also formed in the region from the upper side of the heel region 132 toward the inner heel side end portion of the intermediate region 133. Is provided and connected to the band on the outer heel side (resin band 161).

The resin bands 161 and 162 are also formed of a flexible band-shaped resin material such as vinyl chloride. One end of one resin band 161 is attached to the outer ankle side end of the intermediate region 133 in the sole portion 13. Further, one end of the other resin band 162 is attached to an end portion on the inner ankle side of the intermediate region 133 in the sole portion 13. Further, a hook-and-loop fastener that can be engaged with each other is arranged at the other end of the resin band 161 and the other end of the resin band 162. As the connecting member for connecting the resin band 161 and the resin band 162, various members such as hooks and snaps can be applied in addition to the hook-and-loop fastener.

FIG. 8 is a partially enlarged cross-sectional view taken along the line BB of FIG. As shown in FIG. 8, the MP joint holding portion 17 projects toward the sole of the wearer in a region of the vicinity of the boundary between the toe region 131 and the intermediate region 133, excluding the end portion of the sole portion 13 in the left-right direction. It is formed to do. Here, the MP joint is a metatarsophalangeal joint. In the present embodiment, the MP joint holding portion 17 is formed in a substantially central region in the left-right direction on the intermediate region 133 side near the boundary between the toe region 131 and the intermediate region 133.

In the present embodiment, the MP joint holding portion 17 is formed by knitting a thread continuously with the sole portion 13. That is, when knitting the MP joint holding portion 17, the number or weight per unit area of the yarn for knitting the MP joint holding portion 17 is set per unit area of the yarn for knitting around the MP joint holding portion 17. The thickness of the MP joint holding portion 17 is made thicker than the peripheral thickness by increasing the number or weight of the MP joints.

The sole holding portion 18 is arranged so as to cover the entire sole portion 13 and suppresses the extension of the sock 1 at the sole portion 13. In the present embodiment, the sole holding portion 18 is formed by thermocompression bonding a flexible resin sheet to the sole portion 13. Alternatively, the sole holding portion 18 may be formed by knitting a thermosetting fiber into the sole portion 13 and, after knitting the sock 1, abutting the foot mold on the sole portion 13 to heat and heat-curing the foot mold.

When wearing such a sock 1, the wearer first removes the resin bands 151 and 152 of the inner side surface holding portion 15 and the resin bands 161 and 162 of the outer surface holding portion 16 (see FIG. 6). ), Put your feet in socks 1. Then, while pulling the resin band 151 on the inner ankle side, it extends to the outer ankle side so as to cover the instep and connects to the resin band 152 on the outer ankle side. Subsequently, while pulling the resin band 161 on the outer heel side, the resin band 161 is extended toward the inner heel side so as to pass through the upper part of the heel, and is connected to the resin band 162 on the inner heel side. By wearing in this way, the support effect of the sock 1 can be obtained.

Next, the action of the sock 1 will be described. The sock 1 according to the present embodiment supports the formation of a so-called correct skeleton suitable for walking by supporting the skeleton of the foot.
FIG. 9 is a schematic view of the pronational foot viewed from the heel side. 10 to 14 are schematic views for explaining the action of the sock shown in FIG. Of these, FIG. 10 is a schematic view of the foot as viewed from the heel side. FIG. 11 is a schematic view of the bones constituting the foot as viewed from the inner ankle side. FIG. 12 is a schematic view of the bones constituting the foot as viewed from the instep side. FIG. 13 is a schematic view of the bones constituting the foot as viewed from the outer ankle side. FIG. 14 is a schematic view of the MP joint as viewed from the side.

As shown in FIG. 9, the supination foot refers to a foot in a state in which the midfoot portion is tilted toward the inner ankle side of the foot (pronation) and the heel is tilted toward the outer ankle side of the foot (valgus).
Here, since the musculoskeletal system (ligaments and joints) in the midfoot is relatively soft, it is easy to bend when weight is applied, which is particularly remarkable in children with an underdeveloped musculoskeletal system. Therefore, there are many children whose midfoot tends to fall to the inner ankle side where weight is easily applied. When the midfoot part pronates, the heel tends to valgus to balance it.

In order to correct such deformation of the foot of the child and to develop a foot that is hard to deform in the future, each bone that constitutes the foot should be returned to the normal position and firmly maintained in that state. It is important to promote the formation of bones and muscles by exercising the foot without hindering the movement of the entire foot.

Therefore, in the present embodiment, the socks 1 provide appropriate support according to the load and non-load according to the walking mechanism. That is, since the foot is easily deformed under load, the foot is firmly supported by the action of each part of the sock 1. In addition, since the foot is less deformed when the load is not applied, the sock 1 naturally wraps the foot and exerts a moderate support force.

Specifically, at the time of loading, first, as shown in FIG. 10, the heel holding portion 14 applies a force in the rotational direction from the inner heel side to the outer heel side to the heel to support the heel to be straight. ..

At the same time, as shown in FIGS. 11 and 12, the inner side surface holding portion 15 pulls up the midfoot portion from the sole side of the inner ankle side and suppresses the protrusion of the scaphoid 103. The pulling action of the inner surface holding portion 15 improves the pronation of the midfoot portion and reduces the factor that the heel escapes to the outer heel side. Therefore, in combination with the action of the heel holding portion 14, the outside of the heel The heel is improved. Furthermore, this pulling action can maintain the arch of the sole of the foot.

Further, as shown in FIGS. 12 and 13, the outer surface holding portion 16 presses the heel so as not to escape to the outer heel side, so that the heel is maintained in a straight state in combination with the action of the heel holding portion 14. can do.

The MP joint holding portion 17 pushes up the metatarsal bone on the MP joint side from the sole side. Here, when the metatarsal portion is turned inward, as shown in FIG. 14A, the height of the metatarsal bone 101 becomes lower than the height of the proximal phalanx 102 in the MP joint 100. As a result, it becomes difficult to rotate the metatarsal bone 101 (see the arrow in the figure) with the MP joint 100 as the base point, and the movable range becomes narrow. This is a so-called stiff joint state, and it becomes difficult for the midfoot portion to rise when kicking out during walking. On the other hand, in the present embodiment, as shown in FIG. 14B, the MP joint holding portion 17 pushes up the metatarsal bone 101. As a result, the movable range of the metatarsal bone 101 with the MP joint 100 as the base point is widened, and the joint becomes soft. As a result, the midfoot portion is sufficiently raised when kicking out during walking, and the wearer can walk comfortably. The MP joint holding portion 17 is preferably formed in a region extending over the first metatarsal bone, the second metatarsal bone, and the third metatarsal bone.

The sole holding portion 18 retains the shape of the sole of the sock 1 and suppresses the positional deviation between each portion of the sole of the wearer and each region of the sole 13 of the sock 1. Thereby, the heel holding portion 14, the inner surface holding portion 15, the outer surface holding portion 16, and the MP joint holding portion 17 can be maintained in a state of efficiently acting on the wearer's foot.

As described above, according to the present embodiment, the bones of each part constituting the wearer's foot can be returned to the normal position and maintained in that state without hindering the movement of the entire foot. Can be supported. In addition, since the wearer can move his / her legs easily, it is possible to create a virtuous cycle in which bones and muscles are easily generated by actively exercising. As a result, it is possible to promote the development of the musculoskeletal system while holding the bone in a normal position, and it is possible to grow a foot that is unlikely to be deformed in the future. Furthermore, since it is possible to prevent the deformation of the foot and the trouble of the foot caused by the deformation, there is a possibility that the athletic ability can be improved.

Further, according to the present embodiment, the above-mentioned support effect is obtained regardless of whether the activity is performed with shoes on the socks or without shoes on the socks. Can be obtained. Therefore, the wearer can wear the socks according to the present embodiment for a long time and continuously obtain the support effect. In addition, socks do not interfere with exercise even when exercising with shoes on.

In addition, socks come into direct contact with and adhere to the wearer's feet and move flexibly like the feet, so unlike shoes and insoles, they do not easily slip off the feet. Therefore, according to the present embodiment, the actions of the heel holding portion 14 and the MP joint holding portion 17 can be effectively transmitted to the sole of the foot.

(Second Embodiment)
FIG. 15 is a cross-sectional view showing a part of the sock according to the second embodiment of the present invention.
In the first embodiment, the heel holding portion (see FIG. 7) is formed by knitting a thread continuously with the sole portion, but in the present embodiment, the heel holding portion is separated from the sole portion 13. It is provided by the body. The configuration of each part of the sock other than the heel holding part is the same as that of the first embodiment.

That is, as shown in FIG. 15, the heel holding portion 21 in the present embodiment is formed into a double sole by sewing a knit fabric 211 to the heel region of the sole portion 13, and is between the fabric 211 and the sole portion 13. It is formed by inserting a heel cup 212 made of a resin material into the space. The heel cup 212 is formed so as to increase in thickness from the outer ankle side to the inner ankle side of the sole portion 13. The heel cup 212 may be fixed by thermocompression bonding to the sole portion 13.
According to the present embodiment, by using the heel cup 212, the height and inclination of the heel holding portion 21 can be easily adjusted.

The MP joint holding portion provided near the boundary between the toe region 131 and the intermediate region 133 of the sole portion 13 is also a knit fabric for forming a double sole, as in the heel holding portion 21 in the present embodiment. It may be formed by a resin member.

In the second embodiment, the heel region of the sole 13 and the MP joint holding portion are individually made into a double sole, but the entire sole 13 is made of a double knit fabric. May be. Alternatively, the entire sock may have a double structure. As a method for producing socks having a double structure, various known techniques can be used (see, for example, Jitsukaihei 2-115506).

Further, the heel holding portion 14 (see FIG. 7) in the first embodiment and the heel cup 212 in the present embodiment may be combined to form the heel holding portion. In this case, the heel cup 212 can supplement the gradient of the heel holding portion 14 knitted with the thread.

(Third Embodiment)
FIG. 16 is a side view of the sock according to the third embodiment of the present invention as viewed from the inner ankle side (toe side).
In the first embodiment, the inner surface holding portion and the outer surface holding portion are formed by attaching a resin band (see the resin bands 151, 152, 161 and 162 in FIG. 6) to the sole portion. In the form, these inner surface holding portion and outer surface holding portion are integrally formed with the foot portion of the sock. The configuration of each part of the sock other than the inner surface holding portion and the outer surface holding portion is the same as that of the first embodiment.

That is, as shown in FIG. 16, in the sock 3 according to the present embodiment, of the foot portion 31, the outer heel of the heel region 132 passes through the instep side of the foot portion 31 from the end portion on the inner heel side of the heel region 132. An inner side surface holding portion 32 is formed in a band-shaped region reaching the side end portion. Further, in the foot portion 31, the outer surface holding portion 33 is formed in a band-shaped region extending from the end on the outer heel side of the intermediate region 133 to the end on the inner heel side of the intermediate region 133 through the heel side of the foot portion 31. Has been done. The inner side surface holding portion 32 and the outer surface holding portion 33 are made of a yarn having an elastic modulus larger than the elastic modulus of the yarn that knits the regions other than the inner side surface holding portion 32 and the outer surface holding portion 33 of the foot portion 31. It is an area formed by weaving. The elasticity of the inner surface holding portion 32 and the outer surface holding portion 33 as a whole can be adjusted by the elastic modulus of the yarn itself to be knitted in these regions, the tension at the time of knitting, the knitting method, and the like.

In the inner surface holding portion 32 and the outer surface holding portion 33, the entire region thereof is less likely to extend than the other regions. Therefore, when the sock 3 is worn and a load is applied to the foot, the action of suppressing the movement of the foot portion in contact with the inner side surface holding portion 32 and the outer surface holding portion 33 occurs, as in the first embodiment. It is possible to suppress the twisting of the foot.

In this way, by forming the inner side surface holding portion 32 and the outer surface holding portion 33 as a knit and integrally forming with the foot portion 31, the sock 3 can be easily worn and the comfort can be improved. .. In addition, the socks 3 can be easily washed as compared with the case where the resin band is used as in the first embodiment.

(Fourth Embodiment)
FIG. 17 is a partial cross-sectional view of the sock according to the fourth embodiment of the present invention as viewed from the side surface of the inner ankle side (toe side). FIG. 18 is a schematic view of the sole of the sock as viewed from the inside of the sock. FIG. 19 is a partially enlarged cross-sectional view taken along the line CC of FIG. FIG. 20 is a partially enlarged cross-sectional view taken along the line DD of FIG.

As shown in FIG. 17, the sock 4 according to the present embodiment has a bag shape including a leg portion 11 formed by knitting a thread, a foot portion 41, and a sole portion 42. Of these, the sole 42 is an area between the toe area 421 that covers the vicinity of the wearer's toe, the heel area 422 that covers the vicinity of the wearer's heel, and the toe area 421 and the heel area 422. An intermediate region 423 is provided.

The foot portion 41 is formed with an inner surface holding portion 411 and an outer surface holding portion 412. The positions and forming methods of the inner surface holding portion 411 and the outer surface holding portion 412 in the foot portion 41 are the same as those of the inner surface holding portion 32 and the outer surface holding portion 33 in the third embodiment.

An elastic intermediate layer (elastic layer) 43 is arranged on a part of the outer surface of the sole 42 (the surface opposite to the side where the sole of the wearer comes into contact), and the elastic intermediate layer 43 and the elastic intermediate layer 43 and the elastic intermediate layer 43 are arranged. The sole holding portion 44 is formed so as to cover the outer surface of the sole portion 42. Further, a heel holding portion 45 is provided in the heel side region of the sole holding portion 44. On the other hand, a non-slip portion 46 is provided on the inner surface of the sole portion 42 (the surface on the side where the sole of the wearer comes into contact with the sole). Further, a metatarsal head stretch portion (stretch portion) 47 is arranged at the boundary between the toe region 421 and the intermediate region 423.

The elastic intermediate layer 43 is formed of, for example, a thin steel plate or other highly elastic material (elastic material), and is arranged between the sole portion 42 and the sole holding portion 44. As shown in FIG. 18, the elastic intermediate layer 43 has a substantially D-shaped planar shape along the shape of the arch, and as shown in FIG. 19, has the same orientation as the arch of the foot (that is, the wearer's foot). It is curved (convex toward the back). The elastic intermediate layer 43 is raised on the inner ankle side with respect to the outer ankle side when no load is applied, and elastically deforms when a load is applied to the elastic intermediate layer 43. Tension the soles of your feet.

The sole holding portion 44 is formed of a flexible resin material and suppresses the elongation of the sock 4 at the sole portion 42. Here, "suppression" does not mean that the sole 42 is not completely stretched, and while allowing some stretch according to the wearer's foot, it is not as good as a general knit sock. It means that it is suppressed to the extent that it does not stretch freely. That is, the sole holding portion 44 suppresses the extension of the sock 4 to the extent that when the wearer wears the sock 1 and walks, the movement of the sole of the foot is somewhat restrained. The sole holding portion 44 is formed, for example, by knitting thermosetting fibers into the yarn that knits the sole portion, contacting the foot mold, heating the foot mold, and heat-curing the foot mold. By this thermosetting, the sole holding portion 44 is formed so as to have a foot shape, and is also integrated with the elastic intermediate layer 43.

As shown in FIG. 20, the heel holding portion 45 is a heel cup formed of, for example, a resin material so as to increase in thickness from the outer ankle side to the inner ankle side of the sole portion 42. In the present embodiment, when the sole holding portion 44 is thermoset, the heel holding portion 45 is also heated and integrated with the sole holding portion 44.

The non-slip portion 46 prevents misalignment between the back surface of the wearer's foot and the inner surface of the sole portion 42. Preferably, the non-slip portion 46 is provided in the area including the top portion of the wearer's arch (the highest portion of the arch of the foot). In the present embodiment, the non-slip portion 46 is formed by attaching a non-slip member such as a thin rubber plate or rubber glue to the inner surface of the sole portion 42. However, the method of forming the non-slip portion 46 is not limited to this, and for example, when knitting the sole portion 42, by knitting in the region of the non-slip portion 46 using a thread having a higher coefficient of friction than the surroundings. , The non-slip portion 46 may be formed.

The metatarsal head stretch portion 47 is provided so as to divide the sole portion 42 and the sole holding portion 44 in the region of the sole covering the first metatarsal bone head to the fifth metatarsal bone head. There is. Specifically, it is preferable that the metatarsal head stretch portion 47 is provided within a region of about 65% to 92% from the heel with respect to the foot length (the length from the heel to the tip of the second finger), and from the heel. It is more preferable to provide it in the region of about 70% to 82%.

The metatarsal head stretch portion 47 connects the first stretch portion 47a that connects the toe side and the heel side of the divided sole portion 42, and the toe side and the heel side of the divided sole holding portion 44. 2 Includes a stretch portion 47b. In the present embodiment, each of the first stretch portion 47a and the second stretch portion 47b is formed by knitting using, for example, a highly elastic thread containing rubber, resin, or the like. Preferably, the first stretch portion 47a and the second stretch portion 47b are knitted so that they can easily expand and contract in the foot length direction and hardly expand and contract in the direction orthogonal to the foot length direction (foot width direction). Alternatively, a film or the like is adhered or welded to the metatarsal head stretch portion 47 (for example, the outside of the second stretch portion 47b) so that the stretch in the foot width direction is suppressed while maintaining the elasticity in the foot length direction. You may. Further, the surfaces in contact with each other may be adhered to each other by using an adhesive or the like so that the first stretch portion 47a and the second stretch portion 47b do not shift during expansion and contraction. Alternatively, the first stretch portion 47a and the second stretch portion 47b may be integrally knitted.

An MP joint holding portion (convex portion) 48 is provided inside the metatarsal head stretch portion 47 (first stretch portion 47a). In the present embodiment, the MP joint holding portion 48 is first stretched by using a highly elastic thread like the first stretch portion 47a so that the MP joint holding portion 48 can be expanded and contracted in the foot length direction together with the metatarsal head stretch portion 47. It is integrally organized with the portion 47a. Specifically, the number or weight of the threads that knit the region of the MP joint holding portion 48 per unit area is the number of threads that knit the first stretch portion 47a around the MP joint holding portion 48 per unit area. Alternatively, by increasing the weight, the thickness of the region of the MP joint holding portion 48 is made thicker than the peripheral thickness. Alternatively, for example, the MP joint holding portion 48 may be formed by attaching a highly flexible silicone rubber to the inside of the first stretch portion 47a.

Next, the action of the sock 4 will be described. The sock 4 according to the present embodiment promotes stable walking by supporting the foot so that the muscles of the foot move properly during walking. That is, by supporting the target muscle (sole muscle) with the sock 4 so that it can move easily, the wearer is supported so that he / she can walk in a so-called correct manner.

21 to 24 are schematic views for explaining the operation of the sock 4. Of these, FIG. 21 is a schematic view of the foot with the heel landed as viewed from the inner heel side (toe side). FIG. 22 is a schematic view of the sole of the foot with the heel landed as viewed from the inside of the sock. FIG. 23 is a schematic view of the kicked foot as viewed from the inner ankle side (toe side). FIG. 24 is a schematic view of the sole of the foot in a kicked state as viewed from the inside of the sock.

When the wearer wears the sock 4 and the foot is in a floating state, the heel holding portion 45 fits the wearer's heel. Since the heel holding portion 45 is integrated with the sole portion 42, the elastic intermediate layer 43, and the sole holding portion 44, when the wearer lands the heel, the elastic intermediate layer 43 is received by the heel holding portion 45. The impact can be absorbed and the heel holding portion 45 can be maintained in a state of being fitted to the heel. Thereby, the valgus of the heel can be suppressed.

As shown in FIGS. 21 and 22, when the wearer shifts his / her weight from the heel to the sole of the foot, the elastic intermediate layer 43 is crushed by the load and expands in a plan view. As a result, the load applied to the wearer's midfoot can be dispersed and the midfoot can be prevented from collapsing.

Further, as shown in FIGS. 23 and 24, when the center of gravity moves from the heel to the toe at the time of kicking, the restoring force of the elastic intermediate layer 43 lifts the vicinity of the scaphoid 103. The action of lifting the vicinity of the scaphoid bone improves the pronation of the midfoot, and in combination with the action of the heel holding portion 45, the valgus of the heel is improved, and the arch of the sole is maintained. It is also possible. At this time, since the non-slip portion 46 suppresses the displacement between the sole and the sole 42 of the wearer, the elastic intermediate layer 43 can push up an appropriate portion of the sole with a pinpoint. Further, the restoring force of the elastic intermediate layer 43 causes the sole of the foot to be pushed out straight (without swinging to the left or right), and the propulsion of walking is assisted.

On the other hand, when stepping back, the MP joint portion moves and the metatarsal head stretch portion 47 extends. The restoring force of the metatarsal head stretch portion 47 at this time corrects the joint of the MP joint centering on the third metatarsal head, and has an action of supporting correct joint drive. Further, in combination with the restoring force of the elastic intermediate layer 43, it is possible to support the smooth movement of the center of gravity at the sole of the foot.

As described above, according to the present embodiment, the inner side surface holding portion 411, the outer surface holding portion 412, the sole holding portion 44, and the heel holding portion 45 support the wearer's skeleton, and the elastic intermediate layer 43 and the elastic intermediate layer 43 and the heel holding portion 45. The metatarsal head stretch portion 47 can support the proper movement of the leg muscles during walking. Unlike shoes and insoles, socks do not easily slip off the foot because they come into direct contact with and adhere to the wearer's foot and move flexibly like the foot. Therefore, the actions of the elastic intermediate layer 43 and the metatarsal head stretch portion 47 can be effectively transmitted to the sole of the foot.

In the fourth embodiment, the elastic intermediate layer 43 is formed of a material rich in elasticity such as steel, but the configuration of the elastic intermediate layer 43 is not limited to this. For example, a plate material made of a highly elastic resin material may be used. Alternatively, as an elastic intermediate layer, an airbag may be arranged in an area covering the arch of the wearer, and the elastic force of the air may be used to urge the sole of the wearer's foot.

Further, in the fourth embodiment, the extension of the sock 4 at the sole 42 is suppressed by providing the sole holding portion 44, but the entire sole excluding the metatarsophalangeal stretch portion 47 is covered. It may be formed by a knitting method that is difficult to expand and contract in the length direction of the foot and has more freedom of expansion and contraction in the width direction of the foot. Specific examples include knitting methods such as pin tuck and double jersey.

(Fifth Embodiment)
FIG. 25 is a side view of the sock according to the fifth embodiment of the present invention as viewed from the inner ankle side (toe side). FIG. 26 is a partially enlarged cross-sectional view showing the heel region shown in FIG. 25. FIG. 27 is a schematic diagram for explaining the action of the sock shown in FIG. 25.

As shown in FIGS. 25 and 26, the sock 5 according to the present embodiment is integrally formed with the sock 4 (see FIG. 17) according to the fourth embodiment instead of the sole holding portion 44. The sole holding portion 51 and the side holding portion 52 are provided. In FIG. 25, the side surface holding portion 52 is shaded. Further, in the present embodiment, the heel holding portion 45 is arranged inside the sole holding portion 51 (between the sole portion 42), and the inner side surface holding portion 411 and the outer surface holding portion 412 are placed on the side surface holding portion 52. It is formed so as to be adjacent to the end region. The arrangement of the sole holding portion 51, the side holding portion 52, and the heel holding portion 45, and the configuration and operation of each part of the sock 5 other than the areas of the inner side holding portion 411 and the outer surface holding portion 412 are the same as those of the fourth embodiment. The same is true.

The sole holding portion 51 covers the entire sole portion 42 and the region above the heel region 422. The side holding portion 52 formed continuously with the sole holding portion 51 is arranged on the inner ankle side of the foot portion 12 so as to cover at least the vicinity of the scaphoid bone. The sole holding portion 51 and the side holding portion 52 are formed of a flexible resin material, and suppress the elongation of the sock 5 in the region. Such a sole holding portion 51 and a side surface holding portion 52 are formed, for example, by knitting thermosetting fibers into the yarn forming the region, contacting the foot mold, heating the foot mold, and heat-curing the foot mold.

When walking with such socks 5, as shown in FIG. 27, even when a load is applied to the foot, the inward rotation of the heel due to its own weight is supported by the inclination of the bottom surface (heel holding portion 45). , The scaphoid bone that is about to fall toward the inner heel side can be pressed by the side holding portion 52. Since the side surface holding portion 52 is held by the inner side surface holding portion 411 and the outer surface holding portion 412 so as to be pulled up in the direction of the arrow in the figure, the holding action by the side surface holding portion 52 itself and the inner side surface holding portion 411 and the inner side surface holding portion 411 and By the pulling action by the outer side surface holding portion 412, the protrusion of the scaphoid bone during walking can be effectively suppressed, and the fall to the inner ankle side can be prevented.

Here, the shape of the side surface holding portion 52 is not particularly limited as long as it can cover the scaphoid bone, but in order to enhance the pulling effect of the inner side surface holding portion 411 and the outer surface holding portion 412, among the side surface holding portions 52 When the portion connected to the inner surface holding portion 411 and the outer surface holding portion 412 is made as orthogonal as possible to the direction in which the inner surface holding portion 411 and the outer surface holding portion 412 expand and contract (the direction parallel to the arrow in the figure). good. Further, from the viewpoint of durability against pulling, it is preferable that the portions of the side surface holding portion 52 connected to the inner side surface holding portion 411 and the outer surface holding portion 412 are brought close to each other at right angles to the expansion / contraction direction.

As a modification of the sock 5 according to the fifth embodiment, in place of the inner surface holding portion 411 and the outer surface holding portion 412 woven into the sock 5, or in addition to the inner surface holding portion 411 and the outer surface holding portion 412. A band for tightening the side surface holding portion 52 from the surface may be provided. As a specific example, the resin bands 151, 152, 161 and 162 shown in FIG. 6 may be added to the sock 5. Thereby, the action of the side surface holding portion 52 to hold down the scaphoid bone can be further reinforced.

In the first to fifth embodiments described above, a sock having a general shape in which the fingertips are integrated has been illustrated, but the shape of the sock is not limited to this. For example, the first to fifth embodiments may be applied to socks whose fingertips are bifurcated like tabi or socks whose fingertips are bifurcated. Further, the length (length) of the leg portion is not limited to the short length, and various lengths such as ankle length (so-called ultra-short length) and long length (so-called high socks) can be applied.

Further, the present invention is not limited to the first to fifth embodiments, and various inventions can be formed by appropriately combining a plurality of components disclosed in the first to fifth embodiments. Can be done. For example, some components may be excluded from all the components shown in the first to fifth embodiments to be formed, or the components shown in the first to fifth embodiments may be appropriately formed. It may be formed in combination.

For example, the inner surface holding portions 15, 32, 411, the outer surface holding portions 16, 33, 412, the MP joint holding portion 17, and the heel holding portions 14, 21, 45 described in the first to third embodiments (FIG. 1). -See FIGS. 8, 15, and 16) alone can also support the wearer's skeleton and generate a supportive action to create the correct skeleton.

Further, even if the elastic intermediate layer 43 (see FIGS. 17 and 18) and the metatarsal head stretch portion 47 (same as above) described in the fourth embodiment are used alone, an action of supporting correct walking can be produced. Can be done. In order to effectively improve and prevent foot problems for growing children, it is preferable to support walking while supporting the skeleton, but even if only one of these effects is used, the wearer's It is possible to obtain the effect of promoting the health of the feet.

Alternatively, by providing the MP joint holding portion 17 described in the first embodiment in a part of the metatarsal head stretch portion 47 described in the fourth embodiment, the kicking of the foot during walking is further promoted. It is also possible.

Further, the side surface holding portion 52 described in the fifth embodiment may be applied to the first to third embodiments. However, if the cured part directly hits the wearer's skin, it will not be comfortable to wear. Therefore, the entire or part of the sock (foot part) has a double structure, and the outer fabric of the double structure has thermosetting fibers. It is good to knit and heat cure.

In the above, the socks according to the first to fifth embodiments have been described as socks for improving and preventing foot troubles of growing children, but these socks are worn by adults who have passed the growing season. You may. That is, even an adult who has completed skeletal formation, by continuing to wear the socks according to the first to fifth embodiments, has an action of supporting the bones to return to a normal position and supporting correct walking. By the action, it becomes possible to obtain the effect of improving the trouble of the foot.

(Appendix 1)
Children's socks to prevent the pronation of the midfoot
A bag-like shape formed by knitting threads and including a leg portion that covers the upper part from the ankle of the wearer, a foot portion that covers the instep and sides of the wearer's foot, and a sole portion that covers the sole of the wearer. Have,
A sock formed of an elastic material, provided in an area of the sole of the foot that covers the arch of the wearer, and provided with an elastic layer that urges the sole of the wearer in the area that covers the arch of the foot.

(Appendix 2)
The elastic layer is made of an elastic plate material, has a shape that is convexly curved toward the sole of the wearer's foot, and has a substantially D-shape that follows the shape of the arch in a plan view. socks.

(Appendix 3)
Addendum, which is formed of an elastic material, is provided in a region of the sole portion covering the wearer's first metatarsal bone head to the fifth metatarsal bone head, and further includes a stretch portion that expands and contracts at least in the foot length direction. The socks according to 1 or 2.

(Appendix 4)
The sock according to Appendix 3, wherein the stretch portion is provided in a region of about 65% or more and 92% or less, preferably measured from the heel, with respect to the foot length.

1, 3, 4, 5 Socks 1a Small toe side 1b Toe side 11 Legs 12, 31, 41 Foot 12a Tip stitches 13, 42 Sole 13a Front end area 13b Rear end area 13c Gore line 14 , 21, 45 Heel holding part 15, 32, 411 Inner side holding part 16, 33, 412 Outer side holding part 17, 48 MP Joint holding part 18, 44, 51 Sole holding part 43 Elastic intermediate layer 46 Non-slip part 47 Heel head stretch part 47a 1st stretch part 47b 2nd stretch part 52 Side holding part 100 MP joint 101 Metatarsal bone 102 Base node bone 103 Boat-shaped bone 111 Opening 112 Mouth rubber part 131, 421 Toe area 132, 422 Heel area 133, 423 Intermediate area 151, 152, 161, 162 Resin band 153, 163 Face fastener 211 Fabric 212 Heel cup

Claims (16)

Socks to prevent the pronation of the midfoot
A bag-like shape formed by knitting threads and including a leg portion that covers the upper part from the ankle of the wearer, a foot portion that covers the instep and sides of the wearer's foot, and a sole portion that covers the sole of the wearer. Have,
The sole includes a toe region including the front end region of the sole and covering the vicinity of the wearer's toe, and a heel which includes the rear end region of the sole and covers the vicinity of the wearer's heel. A region and an intermediate region, which is a region between the toe region and the heel region, are provided.
In the heel region, a heel holding portion formed so as to increase in thickness from the outer heel side to the inner heel side, and
It is arranged in a region from the inner heel side end of the heel region toward the foot portion, and at least suppresses the extension of the sock in the region, or the inner heel side end portion of the heel region toward the foot portion. The first side holding part to be pulled up and
A second side surface that is arranged in a region extending upward from the heel region from the outer heel side end of the intermediate region, at least suppresses the extension of the sock in the region, or presses the outer heel side end of the intermediate region. Holding part and
A convex portion formed so as to project toward the sole of the wearer in a region of the vicinity of the boundary between the toe region and the intermediate region, excluding the end portion of the sole portion in the left-right direction.
With
The first side surface holding portion is
A first band-shaped member attached to the end of the heel region on the inner heel side, and
A second band-shaped member attached to the outer heel side end of the heel region, and
A connecting member that connects the first band-shaped member and the second band-shaped member,
Having, under shoes. Socks to prevent the pronation of the midfoot
A bag-like shape formed by knitting threads and including a leg portion that covers the upper part from the ankle of the wearer, a foot portion that covers the instep and sides of the wearer's foot, and a sole portion that covers the sole of the wearer. Have,
The sole includes a toe region including the front end region of the sole and covering the vicinity of the wearer's toe, and a heel which includes the rear end region of the sole and covers the vicinity of the wearer's heel. A region and an intermediate region, which is a region between the toe region and the heel region, are provided.
In the heel region, a heel holding portion formed so as to increase in thickness from the outer heel side to the inner heel side, and
It is arranged in a region from the inner heel side end of the heel region toward the foot portion, and at least suppresses the extension of the sock in the region, or the inner heel side end portion of the heel region toward the foot portion. The first side holding part to be pulled up and
A second side surface that is arranged in a region extending upward from the heel region from the outer heel side end of the intermediate region, at least suppresses the extension of the sock in the region, or presses the outer heel side end of the intermediate region. Holding part and
A convex portion formed so as to project toward the sole of the wearer in a region of the vicinity of the boundary between the toe region and the intermediate region, excluding the end portion of the sole portion in the left-right direction.
With
The second side surface holding portion is
A third strip-shaped member attached to the outer ankle-side end of the intermediate region, and
A fourth strip-shaped member attached to the inner ankle-side end of the intermediate region, and
A connecting member that connects the third band-shaped member and the fourth band-shaped member,
Having, under shoes. The sock according to claim 1 or 2 , further comprising a sole holding portion that is arranged on the entire sole portion and suppresses the extension of the sock at the sole portion. The heel holding portion is formed by knitting threads continuously with the sole portion, and the number or weight of the threads for knitting the heel holding portion per unit area increases from the outer heel side to the inner heel side. , The sock according to any one of claims 1 to 3. The sock according to any one of claims 1 to 3, wherein the heel holding portion is attached to the sole portion and includes a heel cup whose height increases from the outer heel side to the inner heel side. The heel holding portion includes a heel cup that is attached to the sole portion and increases in height from the outer heel side to the inner heel side.
The sock according to claim 3 , wherein the sole holding portion and the heel cup are integrally provided on the outside of the sole portion. The convex portion is formed by knitting yarn continuously with the sole portion, and the number or weight of the yarn for knitting the convex portion per unit area of the yarn for knitting the region around the convex portion. The sock according to any one of claims 1 to 3, which is larger than the number or weight per unit area. Any of claims 1 to 7 , which is formed of an elastic material, is provided in a region of the sole portion that covers the arch of the wearer, and further includes an elastic layer that urges the sole of the wearer in the region that covers the arch of the foot. Or the socks described in item 1. The sock according to claim 8 , further comprising a non-slip portion provided in a region of the elastic layer including at least the top portion of the elastic layer. A claim that is formed of an elastic material, is provided in a region of the sole portion that covers the wearer's first metatarsal bone head to the fifth metatarsal bone head, and further includes a stretch portion that expands and contracts at least in the foot length direction. Item 2. The socks according to any one of Items 1 to 9. Socks to prevent the pronation of the midfoot
A bag-like shape formed by knitting threads and including a leg portion that covers the upper part from the ankle of the wearer, a foot portion that covers the instep and sides of the wearer's foot, and a sole portion that covers the sole of the wearer. Have,
The sole includes a toe region including the front end region of the sole and covering the vicinity of the wearer's toe, and a heel which includes the rear end region of the sole and covers the vicinity of the wearer's heel. A region and an intermediate region, which is a region between the toe region and the heel region, are provided.
In the heel region, a heel holding portion formed so as to increase in thickness from the outer heel side to the inner heel side, and
It is arranged in a region from the inner heel side end of the heel region toward the foot portion, and at least suppresses the extension of the sock in the region, or the inner heel side end portion of the heel region toward the foot portion. The first side holding part to be pulled up and
A second side surface that is arranged in a region extending upward from the heel region from the outer heel side end of the intermediate region, at least suppresses the extension of the sock in the region, or presses the outer heel side end of the intermediate region. Holding part and
A convex portion formed so as to project toward the sole of the wearer in a region of the vicinity of the boundary between the toe region and the intermediate region, excluding the end portion of the sole portion in the left-right direction.
A sole holding portion that is arranged on the entire sole portion and suppresses the extension of the sock at the sole portion.
With
The heel holding portion includes a heel cup that is attached to the sole portion and increases in height from the outer heel side to the inner heel side.
The sole holder and the heel cup is integrally provided on the outer side of the sole portion under the shoe. Socks to prevent the pronation of the midfoot
A bag-like shape formed by knitting threads and including a leg portion that covers the upper part from the ankle of the wearer, a foot portion that covers the instep and sides of the wearer's foot, and a sole portion that covers the sole of the wearer. Have,
The sole includes a toe region including the front end region of the sole and covering the vicinity of the wearer's toe, and a heel which includes the rear end region of the sole and covers the vicinity of the wearer's heel. A region and an intermediate region, which is a region between the toe region and the heel region, are provided.
In the heel region, a heel holding portion formed so as to increase in thickness from the outer heel side to the inner heel side, and
It is arranged in a region from the inner heel side end of the heel region toward the foot portion, and at least suppresses the extension of the sock in the region, or the inner heel side end portion of the heel region toward the foot portion. The first side holding part to be pulled up and
A second side surface that is arranged in a region extending upward from the heel region from the outer heel side end of the intermediate region, at least suppresses the extension of the sock in the region, or presses the outer heel side end of the intermediate region. Holding part and
A convex portion formed so as to project toward the sole of the wearer in a region of the vicinity of the boundary between the toe region and the intermediate region, excluding the end portion of the sole portion in the left-right direction.
An elastic layer formed of an elastic material, provided in an area of the sole of the foot that covers the arch of the foot, and urges the sole of the wearer in the area that covers the arch .
With
The elastic layer member is curved to be convex towards the plate-like elastic material in the sole of the wearer, or, including an air bag, under the shoe. Wherein one of the elastic layer further comprises a slip portion provided in a region including the top portion of at least the elastic layer, sock according to claim 1 2. Socks to prevent the pronation of the midfoot
A bag-like shape formed by knitting threads and including a leg portion that covers the upper part from the ankle of the wearer, a foot portion that covers the instep and sides of the wearer's foot, and a sole portion that covers the sole of the wearer. Have,
The sole includes a toe region including the front end region of the sole and covering the vicinity of the wearer's toe, and a heel which includes the rear end region of the sole and covers the vicinity of the wearer's heel. A region and an intermediate region, which is a region between the toe region and the heel region, are provided.
In the heel region, a heel holding portion formed so as to increase in thickness from the outer heel side to the inner heel side, and
It is arranged in a region from the inner heel side end of the heel region toward the foot portion, and at least suppresses the extension of the sock in the region, or the inner heel side end portion of the heel region toward the foot portion. The first side holding part to be pulled up and
A second side surface that is arranged in a region extending upward from the heel region from the outer heel side end of the intermediate region, at least suppresses the extension of the sock in the region, or presses the outer heel side end of the intermediate region. Holding part and
A convex portion formed so as to project toward the sole of the wearer in a region of the vicinity of the boundary between the toe region and the intermediate region, excluding the end portion of the sole portion in the left-right direction.
A stretch portion formed of an elastic material, provided in a region of the sole covering the wearer's head from the first metatarsal bone to the head of the fifth metatarsal bone, and expands and contracts at least in the length direction of the foot. A stretch part that stretches more easily in the length direction of the foot than in the width direction,
Under shoes Ru equipped with. The first side surface holding portion has an elasticity larger than the elastic modulus of the thread that knits a region other than the strip-shaped region in the strip-shaped region from the end on the inner heel side of the heel region to the foot portion in the foot portion. The sock according to any one of claims 1 to 14 , which is formed by knitting a yarn having a coefficient. The second side surface holding portion has a modulus of elasticity of the thread that knits a region other than the belt-shaped region in a belt-shaped region extending upward from the heel region from the outer ankle-side end of the intermediate region in the foot portion. The sock according to any one of claims 1 to 15 , which is formed by knitting a thread having a large elastic modulus.

Images