JP5704860B2 - socks - Google Patents

Description

  The present invention relates to a sock that retains the function of a foot arch structure.

  FIG. 5A is a diagram showing the state of the human right foot skeleton viewed from the back side of the foot, and FIG. 5B is a diagram showing the state of the human right foot skeleton 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 of 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 skeleton of the foot may be reduced, and the ability 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, socks that retain the function of the arch structure of the skeleton of the foot are known as the prior art (Patent Documents 1 to 19). For example, in Patent Document 1, a first tightening portion rich in circumferential elasticity is provided at a position near the toe in the vicinity of the sock's buttocks, and at a position near the toe in the vicinity of the toe of the sock. Compared with the instep part of the sock so as to connect the first tightening part and the second tightening part to the sole part of the sock, the sock having the second tightening part rich in elasticity in the direction. A sock provided with a connecting portion having low stretchability in the longitudinal direction of the sock is described.

JP 2008-50744 A JP 2007-277779 A JP 2006-348406 A Utility Model Registration No. 3157243 JP 2009-411141 A JP 2008-161344 A JP 2008-1111224 A JP 2007-100240 A JP 2005-312512 A JP 2005-42213 A Japanese Patent Laid-Open No. 2003-299685 Japanese Patent No. 4040671 Utility Model Registration No. 3137194 JP 2010-116654 A JP 2006-225833 A JP 2002-69701 A International Publication No. 2007/074735 Pamphlet JP 2009-155663 A

  Although the sock described in Patent Document 1 generates tensile stress in the front-rear direction of the sole of the foot and can maintain the function of the arch structure of the skeleton of the foot, it has two arch structures, that is, an inner vertical arch structure and an outer side. Since no tensile stress is applied to each of the longitudinal arch structures, there is a problem that the effect of preventing the function of the arch structure of the foot skeleton from deteriorating is weakened.

  On the other hand, in the field of sports medicine, arch taping is known that reduces the fatigue of the foot by preventing the function of the arch structure of the foot skeleton from deteriorating. An example of arch taping is shown in FIG. In this taping, an anchor tape 610 is first attached to the outer peripheral portion of the foot that passes through the base of the thumb and the base of the little finger. Then, starting from the top of the anchor tape 610, while applying tension to the tape 620, the tape 620 sequentially passes from the base of the little finger to the base of the thumb through the inner side of the heel, the back side of the heel, and the outer side of the heel. Affix 620 to the foot. Thereby, this taping can hold | maintain the function of each arch structure by a tensile stress acting toward each of an inner vertical arch structure and an outer vertical arch structure. Since socks do not stick to feet like taping tape, it is difficult to achieve this effect with socks.

The present invention employs the following configuration in order to solve the above problems.
That is, the present invention is a sock comprising a toe part, a sole part, an instep part, a heel part, and an ankle part, wherein the sock is provided on the sole part and is made of a highly elastic material. A first X-shaped component extending from a position corresponding to the base of the big toe to a position corresponding to the outside of the heel and a position extending from a position corresponding to the base of the little toe to a position corresponding to the inner portion of the heel. An X-shaped support portion having two X-shaped components , and at least under the Achilles tendon, which is provided on the ankle portion, the heel side portion of the support portion is fixed, and is made of a highly elastic material. A high-elastic material that is connected to a portion corresponding to the base of the thumb and a portion corresponding to the base of the little finger provided on the toe side of the instep and covering the back of the heel The toe part of the support part composed of And a portion corresponding to the inner side of the heel of the support portion and a portion corresponding to the outer side of the heel. A second fixing portion that is connected and configured from a highly elastic material and fixes the heel side of the support portion; and provided on the instep side of the ankle portion, on the inner side of the heel of the support portion. At least one of a third fixing portion connected to a corresponding portion and made of a highly elastic material for fixing the flange side of the support portion is provided. Preferably, the first fixing portion is disposed at a portion extending from a position corresponding to the base of the thumb of the foot of the instep portion to a position corresponding to the base of the little finger, and the second fixing portion is an ankle of the instep portion. It arrange | positions in the area | region which covers the rear part of the instep of the foot close to a part, and a 3rd fixing | fixed part is arrange | positioned at the instep part side of the outer periphery of an ankle part. Further, the sock of the present invention further includes a triangular region portion surrounded by the support portion and the toe portion, and the elastic modulus of the triangular region portion is lower than the elastic modulus of the support portion and the first fixing portion. Good. The sock of the present invention further includes a triangular region surrounded by the support portion and the heel portion, and the elastic modulus of the triangular region portion is lower than the elastic modulus of the support portion and the second fixing portion. Also good.

  According to the present invention, tensile stress can be applied to each of the inner vertical arch structure and the outer vertical arch structure, and the function of the arch structure of the foot skeleton can be reduced by walking or running for a long time. A sock that can be more reliably suppressed 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 a foot skeleton. FIG. 6 is a diagram showing an example of taping for preventing the function of the arch structure of the foot skeleton from being deteriorated.

  With reference to FIGS. 1-3, the sock 1 in one Embodiment of this invention is demonstrated. The sock 1 can suppress the deterioration of the function of the arch structure of the foot skeleton even when the user walks or runs for a long time.

  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 portion 30 includes a finger root mesh portion 32, a first fixing portion 34, a mesh portion 36, and a second fixing portion 38. The ankle part 50 includes a third fixing part 52, a heel rear part 54, and a mouth rubber part 56. Here, the toe direction of the foot is the front of the foot, the heel direction of the foot is the back of the foot, the bottom side of the foot is the bottom of the foot, and the back side of the foot is the top 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. And an X-shaped support part component 24b extending to a part corresponding to. The X-shaped support portion 24 looks like an X shape when viewed from the bottom of the foot. The X-shaped portion composed of the component 24a and the component 24b may be configured by one X-shaped fabric, or may be configured by combining two I-shaped fabrics. Good. 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 area portion 26 is a constituent part of the sock 1 surrounded by the X-shaped support portion 24 and a heel portion 40 described later, and has a substantially triangular shape having an apex angle at the front and a side at the rear. Have.

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

  The finger base mesh part 32 is a constituent part of the sock 1 that covers the base part of the toe from above. 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 a portion corresponding to the base of the thumb of the X-shaped support portion 24 and a portion corresponding to the base of the little finger, and fixes the portion on the toe portion 10 side of the X-shaped support portion 24. Yes. The mesh part 36 is a constituent 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 described later, and the X-shaped support part 24. It is. 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 2nd fixing | fixed part 38 connects with the part corresponding to the inner side of the collar of the X-shaped support part 24, and the part corresponding to the outer side of the collar, and fixes the part by the side of the collar part 40 of the X-shaped support part 24. Yes.

  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. The part is fixed. 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 other components, that is, the toe part 10, the front triangle. It is higher than the elastic modulus of the region portion 22, the rear triangular region portion 26, the collar portion 40, the finger root mesh portion 32, the mesh portion 36, and the rubber band portion 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 finger root mesh part 32, 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 22 and the rear triangular region 26 is reduced.

  The knitting structure of the toe portion 10 and the heel portion 40 is pile knitting, the material of the front side ground yarn is nylon, and the material of the back side ground yarn is FTY in which polyester is covered with polyurethane fiber. 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 finger root mesh portion 32 and the mesh portion 36 is mesh knitting, the front side ground yarn material is polyester, and the back side ground yarn material is polyester and polyurethane. By making the knitting structure of the finger base mesh part 32 and the mesh part 36 into mesh knitting, the air permeability of the finger base, 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 finger root mesh portion 32 and the mesh portion 36 is enhanced, and the finger root mesh portion 32 and the mesh portion 36 of the sock 1 are used as the back of the user's foot. Can be fitted.

  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. The tensile stress in each direction acts in a direction in which the inner longitudinal arch structure R1 and the outer longitudinal arch structure R2 (see FIG. 5) of the foot resist the direction in which the function is reduced. It can suppress that a function falls. 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 the first fixing portion 34 is made of a highly elastic material, a tensile stress is generated against the force that the first fixing portion 34 tries to extend in the direction of the arrow 210 shown in FIG. This tensile stress causes a stress in a direction that resists the direction in which the function of the lateral arch structure R3 (see FIG. 5) 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 base part shifts | deviates 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. As a result, the foot is fastened by the second fixing portion 38, and the heel portion 40 side of the X-shaped support portion 24 is fixed.

  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.

  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.

  As shown in FIGS. 1 and 2, the X-shaped support portion 24 and the heel rear portion 54 of the sock 1 are formed from the base portion of the thumb, the outer portion of the heel, and the rear portion of the heel, as shown in FIG. 6. , Pass through the inner part of the heel in sequence and reach the base of the little finger. In other words, the X-shaped support part 24 and the heel rear part 54 are provided at positions corresponding to the position of the tape 620 for taping. However, the X-shaped support part 24 and the heel back part 54 are constituent parts of the sock 1 and do not stick to the foot, and thus move. For this reason, it is difficult to obtain the same effect as the taping shown in FIG. 6 by wearing the socks 1 with only the X-shaped support part 24 and the back part 54 of the heel. However, since the X-shaped support part 24 and the heel back part 54 are fixed to the foot by the first fixing part 34, the second fixing part 38 and the third fixing part 52 of the sock 1, the sock 1 is shown in FIG. The effect similar to the taping shown can be given to the foot.

  The elastic moduli 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 may be the same or different.

  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 region portion 22 spreads in the direction of the arrow 310 in FIG. 4, the outer peripheral portion of the sock passing through the base portion of the thumb and the base portion of the little finger is formed by the first fixing portion 34. 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. As a result, 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.

The sock 1 according to the above embodiment has the following operational effects.
(1) The sock 1 includes 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 includes an X-shaped X-shaped support portion 24. The instep part 30 has a first fixing part 34 on the toe part 10 side for fixing the toe part 10 side of the X-shaped support part 24, and the instep part 30 is the buttocks part of the X-type support part 24. The second fixing portion 38 for fixing the 40 side is provided on the ankle portion 50 side, and the ankle portion 50 fixes the third fixing portion 52 and the heel rear portion 54 for fixing the heel side of the X-shaped support portion 24. 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 are made of a highly elastic material. As a result, tensile stress can be applied to each of the inner vertical arch structure and the outer vertical arch structure, and the deterioration of the function of the arch structure of the foot skeleton due to walking or running for a long time is more reliably suppressed. Socks can be provided. Further, the user can receive the same effect as the taping effect of arranging the tape in an X shape on the sole of the foot by wearing the sock 1.

(2) The X-shaped support part extends from the position corresponding to the base of the thumb of the toe to the position corresponding to the outside of the heel and the position corresponding to the base of the little toe of the heel It has an X-shaped support part component 24b extending to a position corresponding to the inner portion, and the first fixing part 34 extends from a position corresponding to the base of the thumb of the foot of the instep 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 51 are arranged in the part of the ankle part 50. It was made to arrange | position on the instep part 30 side of the outer periphery. As a result, tensile stress can be applied to each of the inner vertical arch structure and the outer vertical arch structure, and the deterioration of the function of the arch structure of the foot skeleton due to walking or running for a long time is more reliably suppressed. Socks can be provided. Further, the user can receive the same effect as the taping effect of arranging the tape in an X shape on the sole of the foot by wearing the sock 1.

(3) The sock 1 further includes a front triangular region portion 22 surrounded by the X-shaped support portion 24 and the toe portion 10, and the elastic modulus of the front triangular region portion 22 is the X-shaped support portion 24 and It was made to be lower than the elastic modulus of the 1 fixed 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.

(4) The sock 1 further includes a rear triangular region portion 26 surrounded by the X-shaped support portion 24 and the heel portion 40, and the elastic modulus of the rear triangular region portion 26 has the X-shaped support portion 24 and the 2 It was made to be lower than the elastic modulus of the fixed part 38. Thereby, the X-shaped support part 24 can be fitted to the foot arch, and a comfortable wearing feeling is obtained.

The sock 1 of the above embodiment can be modified as follows.
As long as the heel part 50 side of the X-shaped support part 24 can be fixed, only the second fixing part 26 among the second fixing part 26, the third fixing part 52, and the heel rear part 54 may be formed on the sock 1. Further, if the side of the heel part 50 of the X-shaped support part 24 can be fixed, only the third fixing part 52 and the heel rear part 54 out of the second fixing part 26, the third fixing part 52 and the heel rear part 54 are socks 1. You may form in. Further, only the second fixing part 26 and the heel rear part 54 among the second fixing part 26, the third fixing part 52 and the heel rear part 54 may be formed on the sock 1.

  It is possible to combine one or a plurality of embodiments and modifications. It is possible to combine the modified examples in any way.

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

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 32 Finger root mesh part 34 1st fixing | fixed part 36 Mesh part 38 2nd fixing | fixed part 40 heel part 50 Ankle part 52 Third fixing part 54 Back part 56 Mouth rubber part

Claims (4)

A sock comprising a toe part, a sole part, an instep part, a heel part, and an ankle part,
The socks
A position corresponding to a first X-shaped component provided on the sole and extending from a position corresponding to the base of the thumb of the toe to a position corresponding to the outside of the heel and the base of the little toe of the foot. An X-shaped support having a second X-shaped component extending from a position corresponding to the inner portion of the heel from
A heel back portion that is provided on the ankle portion, is fixed to a heel side portion of the support portion, and is made of a highly elastic material and covers at least the back of the heel under the Achilles tendon;
The toe part of the support part provided on the toe part side of the instep part, connected to the part corresponding to the base of the thumb of the support part and the part corresponding to the base of the little finger, and made of a highly elastic material And a first fixing portion for fixing the side,
The support part is provided on the ankle part side of the instep part, connected to a part corresponding to the inside of the heel of the support part and a part corresponding to the outside of the heel, and made of a highly elastic material. A second fixing portion for fixing the heel side; and a portion corresponding to the inside of the heel of the support portion, which is provided on the instep side of the ankle portion, and is made of a highly elastic material. A sock comprising at least one of a third fixing portion for fixing the heel side of the support portion. The first fixing portion is disposed at a portion extending from a position corresponding to the base of the thumb of the foot of the instep portion to a position corresponding to the base of the little finger;
The second fixing portion is disposed in a region covering a rear portion of the instep adjacent to the ankle portion of the instep portion;
The sock according to claim 1, wherein the third fixing portion is disposed on the instep side of the outer periphery of the ankle portion. A triangular region surrounded by the support part and the toe part;
The sock according to claim 2, wherein an elastic modulus of the triangular region portion is lower than an elastic modulus of the support portion and the first fixing portion. Further comprising a triangular region surrounded by the support part and the collar part,
The sock according to claim 2, wherein an elastic modulus of the triangular region portion is lower than an elastic modulus of the support portion and the second fixing portion.

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