JP2014019994A - Socks - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pair of socks by applying a non-slip effect to socks which can more reliably suppress deterioration of the arch structure function of the foot skeleton, caused by walking or running for a long time.SOLUTION: This pair of socks 1 is such that a sole part 20 includes an X-shaped support part 24, a front triangle area part 22, and a back triangle area part 26, an instep part 30 includes on the toe part side a first fixing part 34 fixing the toe part side of the X-shaped support part 24, the instep part 30 includes on the ankle part side a second fixing part 38 fixing the heel part side of the X-shaped support part 24, and/or an ankle part 50 includes on the instep part side a third fixing part 52 fixing the heel part side of the X-shaped support part 24, the X-shaped support part 24, the first fixing part 34, the second fixing part 38 and the third fixing part 52 are made of a high elastic material, and the friction coefficients of an area 60 and an area 70 of the socks 1 having high friction coefficients are higher than the friction coefficients of the other areas.

Description

  The present invention relates to a sock that has a non-slip effect on a sock that retains the function of the arch structure of a foot.

  FIG. 7A is a diagram showing a state where the skeleton of a person's right foot is viewed from the back side of the foot, and FIG. 7B is a diagram illustrating a state where the skeleton of the person's right foot is viewed from the inside (thumb side). is there. The human foot skeleton 500 has a medial longitudinal arch structure R1 along a line 552 connecting the seed bone 512 of the first metatarsal 510 and the rib ridge 532 of the rib 530, and the fifth metatarsal bone. Along the line 554 connecting the seed bone 522 of the 520 and the rib ridge 532 of the rib 530, the outer longitudinal arch structure R2 is formed, and the seed bone 512 of the first metatarsal 510 and the fifth metatarsal 520 A transverse arch structure R3 is provided along a line 556 connecting the seed bone 522. These skeletal arch structures absorb the impact on the foot when a person is walking or landing when the person is running. However, if a person walks or runs for a long time, the function of the arch structure of the foot skeleton may be reduced, and the ability of the skeleton to absorb impact on the foot may be reduced.

  In order to suppress such a decrease in the ability to absorb the impact on the foot, a sock that retains the function of the arch structure of the skeleton of the foot is known as the prior art (for example, Patent Document 1). The sock described in Patent Document 1 includes a toe part, a sole part, an instep part, a heel part, and an ankle part, the sole part has an X-shaped support part, and the instep part has an X shape. The toe part side has a first fixing part for fixing the toe part side of the mold support part, and the instep part has a second fixing part for fixing the buttocks side of the X-shaped support part on the ankle part side, The ankle portion has a third fixing portion on the instep side that fixes the heel side of the X-shaped support portion, and the X-shaped support portion, the first fixing portion, the second fixing portion, and the third fixing portion are high. Consists of elastic material. Thus, the sock described in Patent Document 1 can apply a tensile stress to each of the inner vertical arch structure and the outer vertical arch structure, and can arch the foot skeleton by walking or running for a long time. Deterioration of the function of the structure can be suppressed.

JP 2012-46838 A

  There is a demand for a sock that can further suppress the deterioration of the function of the arch structure of the foot skeleton caused by walking or running for a long time.

The present invention employs the following configuration in order to solve the above problems.
That is, the present invention is a sock 1 including a toe portion 10, a sole portion 20, an instep portion 30, a heel portion 40, and an ankle portion 50, and the sole portion 20 is an X-shaped support portion 24. A front triangular region 22 surrounded by the toe portion 10 and the X-shaped support portion 24, and a rear triangular region portion 26 surrounded by the X-shaped support portion 24 and the heel portion 40, and the instep 30 has a first fixing portion 34 on the toe portion 10 side for fixing the toe portion 10 side of the X-shaped support portion 24, and the instep portion 30 fixes the heel portion 40 side of the X-shaped support portion 24. 2 having a fixing part 38 on the ankle part 50 side and / or a third fixing part 52 for fixing the heel part 40 side of the X-shaped support part 24 on the ankle part 30 side. The letter-shaped support part 24, the first fixing part 34, the second fixing part 38 and the third fixing part 52 are made of a highly elastic material. The friction coefficient of the region 60 having a high friction coefficient, which includes the front triangular region 22, at least a portion of the front side portion of the X-shaped support portion 24, and the first fixing portion 34, and the rear of the X-shaped support portion 24. The friction coefficient of the region 70 having a high friction coefficient composed of at least a part of the side portion, the rear triangular region portion 26 and the second fixing portion 38 is higher than the friction coefficient of other regions.

  ADVANTAGE OF THE INVENTION According to this invention, the sock which can suppress more reliably the fall of the function of the arch structure of the leg | foot skeleton by walking or running for a long time can be provided.

FIG. 1 is a view showing a sock according to an embodiment of the present invention. FIG. 2 is a view for explaining the tensile stress of the X-shaped support portion in the sock according to the embodiment of the present invention. Drawing 3 is a figure for explaining the tensile stress of the 1st-3rd fixed part and heel back part in the sock of one embodiment of the present invention. Drawing 4 is a figure for explaining the front and back triangle field part in the sock of one embodiment of the present invention. FIG. 5 is a diagram for explaining the footwork test. FIG. 6 is a diagram showing the results of the sports test. FIG. 7 is a diagram for explaining a foot skeleton.

  A sock 1 according to an embodiment of the present invention will be described with reference to the drawings. This sock 1 can give the sock which can suppress the fall of the function of the arch structure of the foot | skeleton of a leg | foot even if a user walks or runs for a long time, and can have an anti-slip effect.

  FIG. 1 is a view showing a sock according to an embodiment of the present invention. FIG. 1A is a diagram showing a right sock as viewed from the side, and FIG. 1B is a diagram showing a sole of the sock. The sock 1 according to an embodiment of the present invention includes a toe part 10, a sole part 20, an instep part 30, a heel part 40, and an ankle part 50. The sole portion 20 includes a front triangular region portion 22, an X-shaped support portion 24, and a rear triangular region portion 26. The instep part 30 includes a first fixing part 34, a mesh part 36, and a second fixing part 38. The ankle part 50 includes a third fixing part 52, a heel rear part 54, and a mouth rubber part 56.

  Further, the friction coefficient in the region 60 having a high friction coefficient, which includes the front triangular region 22, at least a part of the front portion of the X-shaped support portion 24, and the first fixing portion 34, and the rear side of the X-shaped support portion 24. The friction coefficient of the region 70 having a high friction coefficient composed of at least a part of the portion, the rear triangular region portion 26 and the second fixing portion 38 is higher than the friction coefficient of other regions. Here, the coefficient of friction is a coefficient of friction between the sock and the skin of the foot and between the sock and the inside of the shoe.

  Here, the toe direction of the foot is the front of the foot, and the heel direction of the foot is the back of the foot. Further, the thumb side of the foot is the inside of the foot, and the little finger side of the foot is the outside of the foot.

  The toe part 10 is a bag-like component part of the sock 1 that covers the toe.

  The X-shaped support portion 24 includes an X-shaped support portion component 24a extending from a portion corresponding to the base of the thumb of the bottom of the foot to a portion corresponding to the outside of the heel, and a portion corresponding to the base of the little finger to the inside of the heel. X-shaped support part component 24b extending to a portion corresponding to the X-shaped support part component 24c, and the X-shaped support part component 24a and the X-shaped support part component 24b overlap each other. The X-shaped support portion 24 looks like an X shape when viewed from the bottom side of the foot. The front triangular region portion 22 is a constituent part of the sock 1 surrounded by the toe portion 10 and the X-shaped support portion 24, and has a substantially triangular shape having a side in the front and an apex angle in the rear. The rear triangular region portion 26 is a constituent part of the sock 1 surrounded by the X-shaped support portion 24 and the heel portion 40, and has a substantially triangular shape having an apex angle at the front and a side at the rear.

  The heel part 40 is a component part of the sock 1 that covers at least the underside of the heel.

  The first fixing part 34 is a component part of the sock 1 that extends from a part corresponding to the base of the thumb to a part corresponding to the base of the little finger through the back side of the foot. The first fixing portion 34 is connected to the portion corresponding to the base of the thumb and the portion corresponding to the base of the little finger of the X-shaped support portion 24, and fixes the portion on the toe portion 10 side of the X-shaped support portion 24 to the foot. To do. The mesh part 36 is a component part of the sock 1 that covers the part of the instep and the part of the sole of the foot surrounded by the first fixing part 34, the second fixing part 38, and the X-shaped support part 24. . The 2nd fixing | fixed part 38 is a component part of the sock 1 which covers the back part of the instep which adjoins an ankle among the instep parts. The second fixing portion 38 is connected to a portion corresponding to the inside of the heel of the X-shaped support portion 24 and a portion corresponding to the outside of the heel, and the portion on the side of the heel portion 40 of the X-shaped support portion 24 is fixed to the foot. To do.

  The 3rd fixing | fixed part 52 is a component part of the sock 1 which covers the part close | similar to the instep of the front of an ankle. The heel back 54 is a component of the sock 1 that covers at least the back of the heel under the Achilles tendon. The outer periphery of the ankle on the side of the heel portion 40 is covered with the third fixing portion 52 and the heel back portion 54. The third fixing portion 52 and the heel rear portion 54 are connected to a portion corresponding to the inner side of the heel of the X-shaped support portion 24 and a portion corresponding to the outer side of the heel, and on the heel portion 40 side of the X-shaped support portion 24. Secure the part to the foot. The mouth rubber part 56 is a cylindrical part of the sock 1 that covers the ankle.

  Next, the elastic modulus of each component of the sock 1 will be described. In the sock 1, the elastic modulus of the X-shaped support part 24, the first fixing part 34, the second fixing part 38, the third fixing part 52, and the heel rear part 54 is the toe part 10, the front triangular area part 22, the rear triangular part It is higher than the elastic modulus of the area part 26, the collar part 40, the mesh part 36 and the rubber band part 56. Furthermore, the elastic modulus of the front triangular region part 22 and the rear triangular region part 26 is higher than the elastic modulus of the toe part 10, the heel part 40, the mesh part 36 and the rubber band part 56.

  The X-shaped support portion 24, the first fixing portion 34, the second fixing portion 38, the third fixing portion 52, and the heel rear portion 54 have a high elastic material having a knitted structure and a material that increase the elastic modulus of each component. Is used. The knitting structure of the highly elastic material is, for example, tack knitting (pulling knitting) in which elastic yarn is inserted. For example, nylon and polyester are used on the front side, and polyester is used on the back side of the ground (ground) yarn of the high elastic material. Polyurethane is used for the elastic yarn.

  The knitting structure of the high elastic material is not particularly limited as long as it is a knitting structure that increases the elastic modulus of the constituent parts of the sock 1, but may be, for example, a floating knitting in which an elastic yarn is inserted, or an elastic yarn is inserted. A mixture of tuck knitting and floating knitting may be used. The material of the highly elastic material is not particularly limited as long as it is a fiber having a high elastic modulus, but polyvinyl chloride, polypropylene, or the like having a high elastic modulus may be used in addition to nylon or polyester. In addition, even if the knitting structure is the same as the other component parts, the elastic yarn made of a material with a high elastic modulus is used to increase the elastic yarn component ratio, increase the fineness of the elastic yarn, and make the elastic yarn thicker than other component parts. The highly elastic material may be formed by using, coating a resin, or pasting the dough. Also, even if the knitting structure is the same as other components, a high elastic material can be formed by increasing the knitting yarn, increasing the knitting density, packing the stitches, etc., and increasing the knitting density. Good.

  The high-elasticity materials of the X-shaped support part 24, the first fixing part 34, the second fixing part 38, the third fixing part 52, and the collar rear part 54 may be the same or different. But you can.

  The knitting structure of the front triangular region portion 22 and the rear triangular region portion 26 is tuck knitting (pulling knitting) in which elastic yarn is inserted, and a boss pattern is formed in the front triangular region portion 22 and the rear triangular region portion 26. Yes. Polyester is used for the ground yarn, and polyurethane is used for the elastic yarn. The insertion amount of the elastic yarn in the tuck knitting of the front triangular region portion 22 and the rear triangular region portion 26 is determined based on the X-shaped support portion 24, the first fixing portion 34, the second fixing portion 38, the third fixing portion 52, and the back portion of the collar. The elastic modulus of the X-shaped support portion 24, the first fixing portion 34, the second fixing portion 38, the third fixing portion 52, and the heel rear portion 54 is reduced by reducing the insertion amount of the elastic yarn in the tuck knitting 54. Also, the elastic modulus of the front triangular region portion 22 and the rear triangular region portion 26 is reduced.

  The knitting structure of the toe portion 10 and the heel portion 40 is pile knitting, the material of the ground yarn on the front side is nylon, and the material of the ground yarn on the back side is FTY (filament twisted) in which polyester fibers are covered with polyurethane fibers. Yarn). By selecting such a knitting structure and material, the stretchability of the toe part 10 and the heel part 40 is enhanced, and the toe part 10 and the heel part 40 of the sock 1 can be fitted to the toe and heel of the user's foot. it can.

  The knitting structure of the mesh part 36 is mesh knitting, the material of the front side ground yarn is polyester, and the material of the back side ground yarn is polyester and polyurethane. By making the knitting structure of the mesh part 36 into mesh knitting, the air permeability of the instep and the sole of the foot is improved, and the foot stuffiness can be prevented. Further, by selecting such a knitting structure and material, the stretchability of the mesh portion 36 is enhanced, and the mesh portion 36 of the sock 1 can be fitted to the instep of the user.

  The knitted structure of the mouth rubber part 56 is rubber knitting (rib knitting), the material of the front side ground yarn is polyester, and the material of the back side ground yarn is polyester and polyurethane. By selecting such a knitting structure and material, it is possible to prevent the slipping of the rubber band portion 56.

  When the user wears the sock 1 having the above components, a tensile stress is generated in the sock 1. Here, the tensile stress is a resistance force of a component portion against extension when the user puts on socks. With reference to FIG. 2 and FIG. 3, the tensile stress which arises in the sock 1 is demonstrated.

  FIG. 2 is a diagram for explaining the tensile stress of the X-shaped support portion 24 in the sock 1 according to the embodiment of the present invention. FIG. 2A is a diagram illustrating a state in which the user wears the sock 1 on the right foot from the inside, and FIG. 2B illustrates a state in which the user views the sock 1 on the right foot from the lower side. FIG. Since a highly elastic material is used for the X-shaped support portion 24, even if the user puts on the sock 1, the X-shaped support portion 24 does not extend so much in the direction of the arrows 110 to 140 shown in FIG. For this reason, a tensile stress in two directions is generated by resisting a force that tends to extend in the directions of arrows 110 to 140 shown in FIG. This tensile stress acts in a direction that resists the direction in which the functions of the inner longitudinal arch structure R1 and the outer longitudinal arch structure R2 (see FIG. 7) of the foot are reduced, and thus the function of the arch structure of the foot skeleton is degraded. This can be suppressed. In particular, since the X-shaped support portion 24 is held at the rear portion of the heel by the heel rear portion 54, the heel portion 40 extends, and the inner portion of the heel and the inner portion of the heel of the X-shaped support portion 24 are frontward. The tensile stress of the X-shaped support part 24 is not weakened.

  FIG. 3 is a diagram for explaining tensile stresses of the first fixing portion 34, the second fixing portion 38, the third fixing portion 52, and the heel rear portion 54 in the sock 1 according to the embodiment of the present invention. It is a figure which shows the state which looked at the sock 1 put on the right leg from the inner side. Since a highly elastic material is used for the first fixing portion 34, a tensile stress is generated by resisting the force that the first fixing portion 34 tries to extend in the direction of the arrow 210. This tensile stress is caused by stress in a direction that resists the direction in which the function of the lateral arch structure R3 (see FIG. 7) of the foot is reduced, so that the deterioration of the function of the arch structure of the foot skeleton is suppressed. Can do. Further, the base of the thumb and the base of the little finger of the X-shaped support part 24 are fixed to the foot by the tensile stress of the first fixing part 34, so that the base of the thumb and the little finger of the X-type support part 24 are fixed. It can suppress that a root part shifts back and the tensile stress of the X-shaped support part 24 weakens.

  Since a highly elastic material is used for the second fixing portion 38, a tensile stress is generated by resisting the force that the second fixing portion 38 tries to extend in the direction of the arrow 220 shown in FIG. Thereby, the foot is tightened by the second fixing portion 38, and the heel portion 40 side of the X-shaped support portion 24 is fixed to the foot.

  Since a highly elastic material is used for the third fixing portion 52 and the heel rear portion 54, the third fixing portion 52 and the heel rear portion 54 resist the force that the third fixing portion 52 and the heel rear portion 54 tend to extend in the direction of the arrow 230 shown in FIG. As a result, tensile stress is generated. Thereby, the ankle is fastened by the third fixing portion 52 and the heel rear portion 54, and the heel portion 40 side of the X-shaped support portion 24 is fixed to the foot.

  When the heel rear portion 54 is displaced in the direction of the arrow 240 shown in FIG. 3, the X-shaped support portion 24 is loosened, and the tensile stress of the X-shaped support portion 24 is weakened. In particular, since the mouth rubber part 56 of the ankle 50 is highly stretchable, there is a possibility that the heel rear part 54 may be displaced in the direction of the arrow 240 shown in FIG. However, it can be prevented by the tensile stress of the third fixing portion 52. Even if there is no third fixing portion 52, it can be prevented by the tensile stress of the second fixing portion 38.

  The elastic modulus of the first fixing part 34, the second fixing part 38, the third fixing part 52, and the collar rear part 54 may be the same as or different from the elastic modulus of the X-shaped support part 24. .

  As described above, the elastic modulus of the front triangular region portion 22 is smaller than the elastic modulus of the first fixed portion 34. For this reason, when the front triangular area portion 22 is expanded in the direction of the arrow 310 in FIG. In comparison, the tightening of the sock 1 at the outer peripheral portion of the foot passing through the base of the thumb and the base of the little finger can be weakened. Thereby, the outer peripheral portion of the foot passing through the base of the thumb and the base of the little finger is not too tight, and it is possible to suppress the deterioration of the blood flow of the foot. If the outer peripheral portion of the foot passing through the base of the thumb and the base of the little finger is not too tight, the elastic modulus of the front triangular region 34 is set to the elastic modulus of the X-shaped support 24 and / or the first fixing portion 34. It may be the same or higher.

  The elastic modulus of the rear triangular region portion 26 is smaller than the elastic modulus of the second fixed portion 38. For this reason, the rear triangular region 26 can be expanded in the width direction of the foot in accordance with the shape of the foot heel as shown by an arrow 320 in FIG. Thereby, the X-shaped support part 24 can be fitted to the foot arch, and a comfortable wearing feeling is obtained.

  Next, the friction coefficient of each component of the sock 1 will be described. As described above, the front triangular area 22, at least part of the front part of the X-shaped support part 24 (for example, part of the front side of the X-shaped support part components 24a and 24b) and the first fixing part 34, the friction coefficient of the region 60 having a high friction coefficient, and at least a part of the rear part of the X-shaped support part 24 (for example, part of the rear side of the X-shaped support part components 24a and 24b), the rear The friction coefficient in the region 70 having a high friction coefficient composed of the triangular region portion 26 and the second fixed portion 38 is higher than the friction coefficient in other regions. Thereby, since the front side and the lower side of the X-shaped support part 24 are more securely fixed to the foot, the tensile stress of the X-shaped support part 24 is weakened when the X-shaped support part 24 is loosened. Further suppression is possible. Moreover, since it can suppress that a wearer's leg | foot moves in the shoes which a wearer wears by this, a wearer can move quickly. Furthermore, since the wearer's foot can be suppressed from being absorbed in the shoe worn by the wearer, the wearer's instantaneous force can be suppressed, so that the wearer's instantaneous force can be increased.

  In addition, you may make the friction coefficient of the 1st fixing | fixed part 34 and the 2nd fixing | fixed part 38 high compared with the friction coefficient of another component. Moreover, you may make the friction coefficient of a part of front side part of the X-shaped support part 24, and a part of rear side part of the X-shaped support part 24 high compared with another part. Furthermore, a part of the front part of the X-shaped support part 24 and a region made up of the first fixing part 34 and a part of the rear part of the X-shaped support part 24 and a region made up of the second fixing part 38 The friction coefficient may be higher than the friction coefficient in other regions. Also in this case, since the front side and the lower side of the X-shaped support portion 24 are more securely fixed to the foot, the tensile stress of the X-shaped support portion 24 is weakened when the X-shaped support portion 24 is loosened. Can be suppressed. However, the friction coefficient of the region 60 having a high friction coefficient, which includes the front triangular region 22, at least part of the front portion of the X-shaped support portion 24, and the first fixing portion 34, and the rear side of the X-shaped support portion 24. By increasing the friction coefficient of the region 70 having a high friction coefficient composed of at least a part of the portion, the rear triangular region portion 26 and the second fixing portion 38 as compared with the friction coefficient of other regions, the X-shaped support portion It can further suppress that the tensile stress of the X-shaped support part 24 becomes weak by loosening 24. FIG.

  For example, when the regions 60 and 70 having a high coefficient of friction of the sock 1 are knitted, the yarns constituting the regions 60 and 70 having the high coefficient of friction of the sock 1 are mixed with yarns having a high coefficient of friction such as urethane yarns and rubber yarns. You may make it make the friction of the area | regions 60 and 70 with a high friction coefficient of the sock 1 high. Thereby, the friction coefficient of both the front side and the back side of the sock can be easily increased. Also, the front triangular area 22, the at least part of the front part of the X-shaped support part 24, the first fixing part 34, the at least part of the rear part of the X-shaped support part 24, the rear triangular area 26, and The friction coefficient can be increased while adjusting the elastic modulus of the second fixing portion 38.

  Moreover, you may make it comprise the area | regions 60 and 70 with a high friction coefficient of the socks 1 with the thread | yarn with a high friction coefficient, for example, the thread | yarn covered with the thin nylon. Also in this case, the coefficient of friction on both the front side and the back side of the sock can be easily increased. That is, the yarn constituting the regions 60 and 70 having a high friction coefficient may include a yarn having a high friction coefficient. A preferable yarn having a high coefficient of friction is a urethane yarn.

  Here, the yarn having a high coefficient of friction means yarns of natural fibers (silk, wool and cotton), yarns of regenerated cellulosic fibers (rayon) and yarns of synthetic fibers (ester, nylon, polyethylene, polypropylene and polyvinyl chloride). The fiber has a higher coefficient of friction than Furthermore, the friction of the regions 60 and 70 of the sock 1 is increased by applying a stretchable material such as rubber to the inner and outer surfaces in the regions 60 and 70 of the sock 1 having a high friction coefficient. You may do it.

The sock 1 according to the above embodiment has the following operational effects.
The sock 1 includes a toe part 10, a sole part 20, an instep part 30, a heel part 40, and an ankle part 50, and the sole part 20 is an X-shaped support part 24, and the toe part 10 and X. A front triangular area 22 surrounded by a character-shaped support 24 and a rear triangular area 26 surrounded by an X-shaped support 22 and a heel 40; 24 has a first fixing part 34 for fixing the toe part side on the toe part side, and the instep part 30 has a second fixing part 38 for fixing the buttocks side of the X-shaped support part 24 on the ankle part side. And / or the ankle portion 50 has a third fixing portion 52 on the instep side for fixing the heel side of the X-shaped support portion 24, and the X-shaped support portion 24, the first fixing portion 34, 2 fixed part 38 and 3rd fixed part 52 are comprised from a highly elastic material, the front triangular area | region part 22, the X-shaped support part 24 The friction coefficient of the region 60 having a high friction coefficient composed of at least a portion of the front side portion and the first fixing portion 34, at least a portion of the rear side portion of the X-shaped support portion 24, the rear triangular region portion 26 and the second fixing portion. The friction coefficient of the region 70 having a high friction coefficient composed of the portion 38 is set to be higher than the friction coefficients of other regions. As a result, a tensile stress can be reliably applied to each of the inner vertical arch structure R1 and the outer vertical arch structure R2, and the function of the arch structure of the foot skeleton can be reduced by walking or running for a long time. An anti-slip effect can be imparted to the socks that can be more reliably suppressed. Moreover, the agility of a wearer's movement can be improved and a wearer's instantaneous power can be raised.

  The yarns constituting the regions 60 and 70 having a high friction coefficient include yarns having a high friction coefficient. Thereby, the friction coefficient of both the front side and the back side of the sock 1 can be easily increased. In addition, the coefficient of friction can be increased while adjusting the elastic modulus of each component of the sock 1.

  The yarn with a high coefficient of friction was a urethane yarn. Thereby, each friction coefficient of the component part in the lower 1 can be made high at low cost.

  The X-shaped support portion 24 extends from a position corresponding to the base of the big toe to a position corresponding to the outside of the heel, and an inner portion of the heel from a position corresponding to the base of the little toe of the foot X-shaped support part component 24b extending to a position corresponding to the first fixing part 34 from a position corresponding to the base of the thumb of the foot of the instep part to a position corresponding to the base of the little finger The second fixing part 38 is arranged in a region covering the back part of the instep adjacent to the ankle part 50 of the instep part 30, and the third fixing part 52 and the heel rear part 54 are arranged on the outer periphery of the ankle part 50. It was arranged on the instep 30 side. As a result, a tensile stress can be applied to each of the inner vertical arch structure R1 and the outer vertical arch structure R2, and the deterioration of the function of the arch structure of the foot skeleton due to walking or running for a long time can be ensured. Can be suppressed.

  The elastic modulus of the front triangular region 22 is made lower than the elastic modulus of the X-shaped support part 24 and the first fixing part 34. As a result, it is possible to prevent the outer peripheral portion of the foot that passes through the base of the thumb and the base of the little finger from becoming tight and the blood flow of the foot from deteriorating.

  The elastic modulus of the rear triangular region portion 26 is made lower than the elastic modulus of the X-shaped support portion 24 and the second fixing portion 38. Thereby, the X-shaped support part 24 can be fitted to the foot arch, and a comfortable wearing feeling is obtained.

  The above description is merely an example, and the present invention is not limited to the configuration of the above embodiment.

  A subject wearing the sock 1 in the embodiment of the present invention and a conventional sock was asked to perform the following sports test, and the effect of the sock 1 in the embodiment of the present invention on the wearer's athletic ability was examined. Here, in the conventional socks, the X-shaped support portion 24, the front triangular region portion 22, the rear triangular region portion 26, the first fixing portion 34, the second fixing portion 38 and the first socks 1 to 24 in the embodiment of the present invention. 3 except for the fixed portion 52.

(subject)
Fourteen college students belonging to the basketball club were asked to wear the socks 1 and the conventional socks in one embodiment of the present invention when wearing basketball shoes, and the following sports test was conducted. The average age is 19.7 years (standard deviation: 1.3), the average height is 166.8 cm (standard deviation: 8.1), and the average weight is 61.5 kg (standard deviation). : 5.8).

(Test method)
A test was conducted by having a subject wear a conventional sock (Nor: 1). Next, the subject was asked to change from conventional socks to socks 1 in one embodiment of the present invention, and the same sports test was performed (Test: 1). The subject was asked to change from the sock 1 in the embodiment of the present invention to the conventional sock, and the same sports test was further performed (Nor: 2). Next, the subject was asked to change from conventional socks to socks 1 in one embodiment of the present invention, and the same sports test was further performed (Test: 2).

(Sport test)
The sports tests performed by the subjects are repeated side jumps, footwork tests, circle dribbling and vertical jumps. Repetitive side jump is a sports test that measures the number of crossings of three lines at 1 m intervals over 20 seconds. The footwork test is a sports test that measures the time required to complete the movement shown in FIG. FIG. 5 is a diagram for explaining the footwork test. As shown in FIG. 5, five cones are arranged and moved between the cones in the order of number 1 to number 9. At this time, the reference numerals 1 and 9 move with a forward dash, the reference numerals 2 to 7 with a cross step, and the reference numeral 8 with a backward run. Circle dribbling is a basketball dribbling around the free throw circle along the free throw lane, then around the center circle, and finally around the opposite free throw circle (around 5 circles in total). This is a sports test that measures the time taken to shoot the goal at the end. Vertical jump is a sport test that measures the jump height when jumping vertically with the power of both feet on the spot without running up from an upright position.

(result)
The results of the sports test are shown in FIG. The result of the sports test is an average value of the results of the sports test in 14 subjects. 6A shows the result of repeated side jump, the vertical axis shows the number of times, FIG. 6B shows the result of the footwork test, the unit of the vertical axis is seconds, and FIG. 6C shows the circle. FIG. 6D shows the result of dribbling, the unit of the vertical axis is seconds, FIG. 6D shows the result of the vertical jump, and the unit of the vertical axis is centimeters. From this, it was found that, in all sports tests, the performance of the sports test is improved when the conventional socks are changed to the socks 1 in the embodiment of the present invention. As a result, the sock 1 according to the embodiment of the present invention has a non-slip effect on the sock having an improved function of the arch structure of the lowered foot skeleton, increases the wearer's agility, and increases the wearer's instantaneous power. I found it to increase.

DESCRIPTION OF SYMBOLS 1 Socks 10 Toe part 20 Sole part 22 Front triangular area part 24 X-shaped support part 26 Back triangular area part 30 Back part 34 1st fixing | fixed part 36 Mesh part 38 2nd fixing | fixed part 40 heel part 50 Ankle part 52 3rd Fixed part 54 踵 Back part 56 Mouth rubber part 60, 70 Area with high coefficient of friction

Claims (3)

A sock comprising a toe part, a sole part, an instep part, a heel part, and an ankle part,
An X-shaped support portion whose sole portion is surrounded by the toe portion and the X-shaped support portion; a rear triangular region portion surrounded by the X-shaped support portion and the heel portion; Have
The toe part has a first fixing part on the toe part side for fixing the toe part side of the X-shaped support part,
The instep portion has a second fixing portion on the ankle portion side for fixing the heel side of the X-shaped support portion, and / or the ankle portion fixes the heel side of the X-shaped support portion. Having a third fixed part on the instep side,
The X-shaped support portion, the first fixing portion, the second fixing portion, and the third fixing portion are made of a highly elastic material,
A friction coefficient in a region having a high friction coefficient composed of at least a part of the front triangular region portion, a front side portion of the X-shaped support portion, and the first fixing portion, and at least a rear side portion of the X-shaped support portion. The so-called friction coefficient in a region having a high friction coefficient composed of the rear triangular region portion and the second fixing portion is a sock that is higher than the friction coefficient in other regions.   The sock according to claim 1, wherein the yarn constituting the region having a high friction coefficient includes a yarn having a high friction coefficient.   The sock according to claim 2, wherein the yarn having a high coefficient of friction is a urethane yarn.

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