JP2014070302A - Foot cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foot cover which gives no feeling of tightness and attains easy walk by supporting the movement of the foot.SOLUTION: A foot cover 100 for covering a foot comprises a support line part 101 disposed in an area extending from a position S to be in contact with the thenar when the foot cover is worn to a position T to be in contact with the outer side of the heel via the instep of the foot. The resilience of the support line part 101 is larger than that of the portions of the foot cover other than the support line part 101.

Description

  The present invention relates to a foot covering.

  Conventionally, socks that correct the foot are used for the purpose of eliminating problems such as knee pain and back pain that occur during walking. For example, in Patent Document 1 below, a portion that passes through the center of the back of the foot from the entire fifth middle bone and reaches the sole arch, a portion that is divided into the left and right ankles at the center of the back of the foot, Socks have been proposed in which a non-stretchable region is provided from the back to the sole of the foot.

Japanese Patent No. 4654340

  However, in the sock of Patent Document 1, since the foot is fixed by the hardly stretchable region, the degree of freedom of movement of the ankle joint is reduced and it is difficult to walk. Moreover, in the sock of the said patent document 1, since a foot | leg part is fixed, the wearing feeling was cramped. And in order to make walking easy, it is necessary to assist the movement of the foot so that the foot can move more easily. However, the conventional technology is not limited to the socks disclosed in Patent Document 1, and the conventional technique places the foot in a specific position. It was fixed and did not assist the movement of the foot.

  Therefore, the present invention provides a foot covering that does not feel cramped and can be easily walked by assisting the movement of the foot.

In order to achieve the above object, the foot covering of the present invention comprises:
A foot covering for covering the foot,
Including support line section,
The support line part is
It is arranged in a region from a position in contact with the Ryukyu during wearing of the foot covering, through the back of the foot, to a position in contact with the outside of the heel,
The restoring force of the support line part is larger than the part other than the support line part in the foot covering.

  According to the present invention, it is possible to provide a foot covering that does not feel cramped and can be easily walked by assisting the movement of the foot.

FIG. 1 is a view showing a sock 100 according to a first embodiment of the present invention. 1A is a perspective view of the sock 100 viewed from the thumb side, and FIG. 1B is a perspective view of the sock 100 viewed from the little finger side. FIGS. 2A and 2B are views showing a wearing state of the sock 100 according to the first embodiment. FIGS. 3A, 3B and 3C are views for explaining the action of the sock 100 according to the first embodiment during walking. FIG. 4 is a view of the sock 100 according to the first embodiment as viewed from the sole side. FIG. 5 is a view showing a sock 200 according to the second embodiment of the present invention. FIG. 5A is a perspective view of the socks 200 viewed from the thumb side, and FIG. 5B is a view of the socks 200 viewed from the sole side. FIG. 6 is a perspective view of a sock 300 according to the third embodiment of the present invention as viewed from the thumb side. FIGS. 7A and 7B are diagrams comparing ankle movements during walking between an elderly person and a general adult. FIG. 8A and FIG. 8B are diagrams for explaining indexes used for wearing evaluation. FIGS. 9A and 9B are graphs showing the results of wear evaluation. FIGS. 10A and 10B are diagrams showing the results of wearing evaluation. FIGS. 11A, 11B, and 11C are diagrams illustrating examples of variations of the support line portion.

  An example of the foot covering of the present invention will be described. However, the present invention is not limited or limited to the following examples.

(First embodiment)
FIG. 1 shows a sock 100 according to a first embodiment of the present invention. 1A is a perspective view of the sock 100 viewed from the thumb side, and FIG. 1B is a perspective view of the sock 100 viewed from the little finger side. The sock 100 of this embodiment includes a support line unit 101. In the present embodiment, the support line portion 101 is a region (shown by diagonal lines in the drawing) from a position S that contacts the Ryukyu when wearing the socks 100 to a position T that contacts the outside of the heel through the back of the foot. Area). In the present invention, “Ryukyu” refers to the base of the thumb. In the present invention, the “outside” of the heel means the little finger side. In the present embodiment, the restoring force of the support line portion 101 is greater than the portion other than the support line portion 101 in the sock 100. Here, the “restoring force” is a force that attempts to return to the original state when a member or a material constituting the foot covering such as the support line portion 101 is stretched.

  In FIG. 2, the figure explaining the wearing condition of the sock 100 which concerns on this embodiment is shown. FIGS. 2A and 2B show a state where the wearer is standing and the entire sole is in contact with the ground. As shown in FIGS. 2A and 2B, the support line portion 101 is disposed so as to connect the wearer's Ryukyu and the outside of the heel. And the support line part 101 has a restoring force larger than another part as above-mentioned. Thereby, by wearing the socks 100 according to the present embodiment, as shown by the arrows in FIGS. 1 and 2, with the entire sole of the wearer in contact with the ground, The force that attracts each other works.

  In FIG. 3, the figure explaining the effect | action at the time of the walk of the sock 100 which concerns on this embodiment is shown. As shown in FIG. 3A, in the sock 100 according to the present embodiment, in the support line portion 101, a pulling force acts between the position S of the Ryukyu and the position T outside the basket. Thus, before the foot touches the ground and when the foot is kicked up, the direction in which the force acts on the support line portion 101 changes according to the respective states, and the ankle movement can be assisted. That is, as shown in FIG. 3 (b), in the state before the foot touches the ground, the force pulling the ball S works with the outside T of the heel as a fulcrum (the arrow shown in FIG. 3 (b)). ), The toes are easy to go up. Further, as shown in FIG. 3C, when kicking up the foot, a force pulling the outer side T of the heel works with the Ryukyu S as a fulcrum (in the direction of the arrow shown in FIG. 3C), The kite is easy to go up and kicks up. Thus, by wearing the socks according to the present invention, the movement of the ankle is assisted and it becomes easy to walk. In addition, the present invention assists the movement of the ankle, and does not fix the ankle like, for example, taping, supporter, etc., so there is no cramped feeling when worn.

  FIG. 7 shows a diagram comparing ankle movements during walking between elderly people and general adults (adults in their 30s). FIG. 7A is a diagram for comparing how toes rise during walking, and FIG. 7B is a diagram for comparing kick-up during walking. A line indicated by a two-dot chain line in FIG. 7A is a horizontal line with respect to the ground passing through the outer cage R and a line connecting the outer cage R and the toe Q. On the other hand, a line indicated by a two-dot chain line in FIG. 7B is a line connecting the outer cage R and the toe Q and a horizontal line passing through the toe Q with respect to the ground. In FIG. 7A, the angle θ formed by the two-dot chain line indicates the angle at which the toes rise before landing, and in FIG. 7B, the angle γ formed by the two-dot chain line is Indicates the angle at which the kite rises when kicking up. As shown to Fig.7 (a), in the case of an elderly person, it turns out that the angle which raises a toe is small compared with the adult of 30s. Moreover, as shown in FIG.7 (b), in the case of an elderly person, it turns out that the angle which the heel raises at the time of kicking is small compared with the adult of 30s. Thus, in the case of an elderly person, the muscular strength which moves an ankle falls by aging, and the way of raising a toe at the time of walking and kicking up are also small. Therefore, in order to improve the movement of the ankle during walking of the elderly and make it easy to walk, it is necessary to assist both the movement of raising the toe and the raising of the toe. Furthermore, not only elderly people but also generations whose ankle muscle strength has not weakened, if the movement of raising the toes and kicking up are assisted during walking, the gait becomes light and it becomes easy to walk. According to the present invention, since the movement of the ankle is assisted only by wearing the foot covering of the present invention at any generation, it is possible to realize ease of walking. In addition, in the case of elderly people, because the toe rises small, it may fall over due to a step, for example, but according to the present invention, it is possible to prevent the toe from falling because the toe rises larger. It becomes possible.

  In FIG. 4, the figure which looked at the sock 100 which concerns on this embodiment from the sole side is shown. As shown in FIG. 4, in this embodiment, it is preferable that the support line part 101 extends to the sole side. Thereby, since the Ryukyu and the heel can be pulled up from the sole side, the lifting force of the support line portion 101 becomes stronger, and the effect of assisting the movement of the ankle can be enhanced.

  In the present embodiment, the support line portion 101 is formed by partially changing the knitting structure of the sock 100. In addition, a portion corresponding to the support line portion 101 may be formed on the fabric of the sock 100 by a contact process. Further, the support line portion 101 may be formed by attaching a material having a restoring force to the socks 100. In this case, the material used for the support line portion 101 is not particularly limited as long as it is a material having a restoring force, and examples thereof include materials such as a stretch tape, a power net, and a stretch lace. Alternatively, the support line portion 101 may be formed by applying resin to the socks 100. By these methods, a restoring force can be applied to the support line unit 101.

  In the present embodiment, the material used for the sock body portion other than the support line portion is not particularly limited, and examples thereof include materials such as cotton, acrylic, nylon, and polyurethane. A plurality of these materials may be used according to the product specifications.

  In the present embodiment, the width of the support line portion 101 is preferably a width that can cover at least about half of the Ryukyu. Thereby, since the support line part 101 raises the whole Ryukyu, the lifting force of the support line part 101 can be exerted effectively on the Ryukyu. The width of the support line portion 101 is not particularly limited as long as it is set to a width that can cover about half or more of the Ryukyu. For example, a range of 1 cm to 5 cm is preferable, and more preferably The range is from 1.5 cm to 3 cm.

  In the present invention, the restoring force of the support line portion 101 only needs to be larger than the other portions of the sock 100.

  In the present invention, the support line portion 101 preferably has a tightening force so that the support line portion 101 has a greater restoring force than the other portions of the sock 100. It is preferable that the tightening force is, for example, that the thumb side of the toe is urged toward the outer heel side with the foot floating in the air. As a result, the support line portion 101 can have an appropriate restoring force.

  In the present embodiment, it is preferable that the sole portion 105 of the socks 100 is more difficult to stretch than the portions other than the sole portion 105 in the socks 100. Thereby, when the support line part 101 is extended, it is possible to prevent the restoring force of the support line part 101 from being reduced due to the foot sole part 105 being pulled and extended by the support line part 101. Since the force of 101 can be effectively exerted on the foot, it is preferable. In this case, the sole part 105 may be formed of a material that is hardly stretchable, or may be made difficult to stretch by partially changing the knitting structure of the sole part 105 in the socks 100. However, according to the specifications of the product, the sole portion 105 may be provided with the same degree of elasticity as the main body portion of the sock 100 (the portion excluding the support line portion 101 and the sole portion 105). In this case, although the restoring force of the support line portion 101 is smaller than that in the case where it is difficult to expand and contract as described above, the effect of assisting the movement of the foot of the present invention can be obtained.

  In the present embodiment, the sock 100 has a portion that covers the ankle, but the present invention is not limited to this, and can also be applied to a type of sock that does not have a portion that covers the ankle. In the present invention, the support line portion may not be a belt-like shape as in the present embodiment, but may be formed by intermittently arranging a plurality of support portions. For example, as shown in FIG. 11A, the support line portion may be formed by arranging a plurality of circular support portions in a straight line without any interval, as shown in FIG. 11B. As described above, a plurality of quadrangular support portions may be formed in a straight line at intervals. Further, as shown in FIG. 11C, a support line portion may be formed by arranging a plurality of narrow support lines.

(Second Embodiment)
FIG. 5 shows a sock 200 according to a second embodiment of the foot covering of the present invention. FIG. 5A is a perspective view of the sock 200 viewed from the thumb side, and FIG. 5B is a view of the sock 200 viewed from the sole side.

  As illustrated in FIG. 5, the sock 200 according to the present embodiment includes a first support line portion 201A and a second support line portion 201B. In the present embodiment, the first support line portion 201A is arranged in a region from a position S that contacts the Ryukyu when wearing the socks 200 to a position T that contacts the outside of the heel through the instep of the foot, The second support line portion 201B is arranged in a region from a position M that contacts the base of the little finger when wearing the socks 200 to a position N that contacts the inside of the heel through the instep of the foot. Here, the “inside” of the bag means the thumb side. The arrangement of the support line portion is an arrangement when the left and right sides are correctly worn. When the right and left sides are worn incorrectly, the second support line portion 201B is arranged at the position of the first support line portion 201A. In addition, a merit that the same function as that of the first support line unit 201A is achieved to some extent can be expected. In general, when a walking motion is performed, the wearer's feet are grounded in order from the outer side of the heel toward the side of the Ryukyu, so the first support line portion provided along the grounding direction. By providing only 201A, the effect of assisting the movement of the foot can be sufficiently obtained. On the other hand, if the restoring force of the second support line portion 201B is too large, the effect of assisting the movement of the foot of the first support line portion 201A may not be sufficiently obtained. It is preferable to set so that the restoring force does not become larger than the restoring force of the first support line portion 201A.

(Third embodiment)
FIG. 6 shows a sock 300 according to a third embodiment of the foot covering of the present invention. FIG. 6 is a perspective view of the sock 300 viewed from the thumb side.

  As shown in FIG. 6, the sock 300 according to the present embodiment is a so-called two-finger sock in which a toe portion 302 is separated into a finger bag 302A that covers the thumb and a finger bag 302B that covers the other fingers. It is. Other aspects of the present embodiment are the same as those of the first embodiment.

  By using a two-finger sock as in this embodiment, the position of the finger in the sock is determined, so that the force of the support line portion 101 can be more effectively applied to the foot. In addition, since the two-finger socks make it easy to see which foot is worn on the left and right, for example, it is possible to prevent an elderly person from wearing the right and left by mistake.

  In the present embodiment, the two-finger socks have been described as an example, but the present invention is not limited to this, and may be, for example, three to five-finger socks.

(Wearing objective evaluation)
[Evaluation 1]
A sock 300 according to the third embodiment of the present invention of the type shown in FIG. 6 was produced and evaluated for wearing. In this evaluation, the sock 300 was worn while the monitor was walking, and the movement of the ankle during walking (the size of how to raise the toe and the size of kicking up) was measured. In this evaluation, the monitor was 11 women in their 60s to 70s. In addition, as a comparative example, ankle movement during walking was measured in the same manner for a two-finger socks without a support line portion (conventional socks).

  FIG. 8 is a diagram for explaining the indexes used in this evaluation. FIG. 8A is a diagram showing the result of measuring the size of the toe before landing on one of the monitors, and FIG. 8B is also measuring the size of the kick-up. It is a figure of a result. In FIG. 8, a point P indicates a midpoint between the knee joint and the outer cage R on the frontal plane (which can also be expressed as a midpoint between the outer knee joint and the outer cage R), and a point Q indicates a toe. . A line indicated by a two-dot chain line in FIG. 8 indicates a virtual line connecting the point P and the outer casing R and a virtual line connecting the point Q and the outer casing R. In FIG. 8, the angles (angles α and β) configured by the two-dot chain line are angles formed by the points P and Q with respect to the outer cage R, and the angle α is an angle in a state immediately before landing, The angle β indicates an angle immediately after takeoff. The smaller the angle α is, the higher the toe is raised, and the larger the angle β is, the larger the kick is, so the larger the value obtained by subtracting the angle α from the angle β, the greater the ankle operating range (how to raise the toes) It can be said that the size of the kick-up) has increased.

  In this evaluation, for each monitor, a value obtained by subtracting the angle α from the angle β was calculated for the case of wearing the conventional socks and the case of wearing the socks 300 of the present invention, and the average of the calculated values Each value was determined. The result is shown in FIG. As shown in FIG. 9A, the average value when the conventional socks were worn was about 8 °, whereas the average value of the socks 300 according to the present invention was about 12 °. .

  FIG. 9B is a graph showing the results of measuring the movement of the ankle in the same manner as described above with 10 shoes on while wearing shoes. As shown in FIG. 9B, the average value when the conventional socks were worn was about 11 °, whereas the average value of the sock 300 according to the present invention was about 14 °. there were.

  In addition, in this evaluation, the average value at the time of socks wearing of the conventional product and the average value at the time of wearing socks 300 were compared using the corresponding t test. As a result, in both cases where the shoes shown in FIG. 9A are not worn and where the shoes shown in FIG. Was found to be significantly greater. In this evaluation, the significance level (indicated by the symbol δ in FIG. 9) was less than 5%.

  From this evaluation, it was found that the movement of the ankle is increased by wearing the socks 300 of the present invention.

[Evaluation 2]
A sock 300 according to the third embodiment of the present invention of the type shown in FIG. 6 was produced and evaluated for wearing. In this evaluation, the sock 300 was worn while the monitor was walking, and the movement of the ankle during walking (the size of how to raise the toe and the size of kicking up) was measured. In this evaluation, the monitor was a 68 year old female. In addition, as a comparative example, ankle movement during walking was measured in the same manner for a two-finger socks without a support line portion (conventional socks).

  FIG. 10 shows the results of this evaluation. In FIG. 10, the angle θ and the angle γ are the same as those shown in FIG. First, regarding FIG. 10A, when comparing the sock 300 according to the present invention and the conventional socks, the angle θ is larger when wearing the socks according to the present invention than when wearing the socks according to the present invention. You can see that the toes are up. Next, comparing FIG. 10 (b), when wearing the socks according to the present invention, the angle γ is larger, the heel is higher, and the kicking is larger than when wearing the conventional socks. Recognize. Thus, it has been found that the sock 300 of the present invention has an effect of supporting the movement of raising the toe during walking and kicking up.

(Wear subjective evaluation)
A sock 300 according to the third embodiment of the present invention of the type shown in FIG. 6 was produced and evaluated for wearing. The monitors were 15 people aged 50 to 74 years. In addition, as a comparative example, the same 15 monitors were asked to wear two-finger socks without a support line part (conventional socks).

  As a result, 12 out of 15 responded that the socks 300 according to the present invention were easier to raise the toes. In addition, 10 out of 15 responded that the sock 300 according to the present invention was easier to kick up. In addition, 12 out of 15 respondents answered that the sock 300 according to the present invention was lighter. And 14 out of 15 responded that the socks 300 according to the present invention is easier to walk. Further, 14 out of 15 respondents answered that the socks 300 according to the present invention is generally more comfortable.

  In addition, regarding the feeling of wearing the socks 300 according to the present invention, when a comment was requested from the monitor, it felt that it would lift the toes without raising a foot, “kick firmly”, and “lift the foot”. ”,“ Can walk lightly ”,“ Can walk stably ”,“ I was not tired after walking for a long time ”,“ Stairs climbed easily ”,“ Easy to walk uphill for about 20 minutes ” It was. Moreover, there was a comment that the support effect of the present invention becomes easier to understand when walking while wearing shoes. As a result, since the sock according to the present invention assists the movement of the ankle during walking, it has been confirmed that the toe can be easily lifted and kicked up easily and the ankle can be moved comfortably.

  As described above, the present invention has been described with reference to socks as specific examples of the embodiment. However, the foot covering of the present invention is not limited to those described in these specific examples, and various aspects are possible. Is possible. For example, the present invention can be applied to tights, stockings, and other various types of foot coverings in addition to the socks as in the above embodiment. In addition, the present invention can be used not only as a sock that is usually worn, but also as a sock for sports, for example, to enhance the performance by assisting the movement of the foot.

  According to the present invention, it is possible to provide a foot covering that does not feel cramped and that allows the ankle to be moved comfortably and facilitates walking. Therefore, the present invention can be effectively used in a foot covering for assisting walking, but its application is not limited and can be used in a wide field.

100, 200, 300 Foot covering (sock)
101, 201A, 201B Support line part 302 Toe part 302A, 302B Finger bag 105 Foot sole part

S Position that touches the baseball T Position that touches the outside of the baseball M Position that touches the base of the little finger N Position that touches the inside of the baseball

Claims (7)

A foot covering for covering the foot,
Including support line section,
The support line part is
It is arranged in a region from a position in contact with the Ryukyu during wearing of the foot covering, through the back of the foot, to a position in contact with the outside of the heel,
The foot covering body is characterized in that a restoring force of the support line portion is larger than a portion of the foot covering body other than the support line portion. The foot covering body according to claim 1, wherein both end portions of the support line portion extend to the sole side of the foot covering body. 3. The foot covering according to claim 1, wherein the width of the support line part is formed so as to cover at least about half of the Ryukyu. The foot covering body according to any one of claims 1 to 3, wherein the foot sole portion of the foot covering body is more difficult to expand and contract than portions other than the foot sole portion of the foot covering body. 5. The foot covering according to claim 1, wherein a toe portion of the foot covering body is separated into a finger bag covering a thumb and a finger bag covering another finger. body. The support line part is
A first support line portion and a second support line portion;
The first support line portion is disposed in a region from a position in contact with the ball when wearing the foot covering to a position in contact with the outside of the heel through the instep of the foot,
The second support line part is arranged in a region from a position in contact with the base part of the little finger when the foot covering is worn to a position in contact with the inside of the heel through the instep of the foot. The foot covering according to any one of claims 1 to 5. The foot covering body according to any one of claims 1 to 6, wherein the foot covering body is a sock.

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