JPWO2007074735A1 - socks - Google Patents

Abstract

Provided is a sock capable of improving the performance performance of foot movement and effectively reducing fatigue by effectively supporting the arch. The sock 10 is a sock 10 knitted by a knitting structure, and is formed on the instep part 12, the arch part 14, the instep part 12 and the arch part 14 in the circumferential direction of the foot from the instep to the arch. Including three regions divided into the foot side part 16 to be connected, and when the sock 10 is worn, the fastening force of the arch part 14 is X, the fastening force of the foot side part 16 is Y, When the tightening force of the instep portion 12 is Z, the knitting of the knitted fabric structure in the three regions is changed so that X> Y> Z. In this case, looking at the tightening force (compression pressure) of the parts that are in contact with the three areas, the instep part is a low support pressure area, the arch part is a high support pressure area, and the foot side part is Middle support pressure area.

Description

  The present invention relates to a sock, for example, a sock that is knitted by a circular knitting machine so that a desired tightening pressure is applied to a specific part of a foot when the sock is worn.

The conventional socks that are the background of the present invention are, for example, to provide socks that are easy to wear and easy to wear, and have a structure that improves the motor function, and are feet ahead of the heel and reaching the base of the toes In some cases, a tightening region made of a stretchable material is formed over the entire circumference of the sole and instep, that is, over the entire foot formed in a cylindrical shape (for example, see Patent Document 1). The tightening area is formed, for example, in a rubber knitted structure in which rubber yarn is knitted on a specific course, and by applying an appropriate tightening force to the foot, the foot is lifted to support the arch structure of the arch. is there. The tightening region is divided into a strong tightening region that tightens a range of approximately three fifths on the heel side with a strong force, and a two-fifth range on the toe side is divided into a normal tightening region with a weak force. In this case, the tightening force is changed depending on the type of rubber thread to be knitted and the size of the rubber knitting eye. If the tightening force in the strong tightening region is 100%, the tightening force in the normal tightening region is about 70%. Is formed.
In this conventional sock, the tightening area is divided into a strong tightening area and a normal tightening area, and the arch structure of the arch is supported in the strong tightening area. Trying to realize.

JP 2002-69701 A (2nd page, FIG. 1)

However, in such a conventional sock, for example, as shown in FIG. 16, when viewed from the strong tightening region 6a and the normal tightening region 6b, each tightening region 6a and 6b is cylindrical from the sole 3a to the upper 3b. The same knitting structure is formed uniformly over the entire circumference in the circumferential direction of the foot 3 formed in the above. In addition, since the cross-sectional shape of the human foot is non-uniform, when the sock 1 formed of a uniform knitted structure is worn in the circumferential direction of the foot 3, the foot from each circumferential surface of the foot 3 is worn. The tightening pressure applied to each part of the foot (hereinafter also referred to as “pressing pressure”) is different, and a pressure difference is generated in the wearing pressure from the sock 1 by the instep part, the arch part, and the side part of the foot. It will be. In particular, the instep portion of the foot that is bulging and hard has a high pressure, and the soft arch portion with a depression has a low pressure.
That is, when the sock 1 formed with a uniform knitting structure in the circumferential direction of the foot 3 is worn, a large pressure is applied to the instep portion of the foot, and the desired pressure is applied to the arch portion that plays an important role during exercise. In addition, a sufficient support function could not be obtained.
On the other hand, for example, as shown in FIG. 6, the person's sole has three arch structures A, B, and C having fulcrums at three points, ie, the main ball a, the small ball b, and the rib c, It is known that there is a walking line D along the movement (tilting motion) line of the center of gravity when walking. In this case, a transverse arch (front arch) A is formed between the ab and the bulge from the base of the thumb to the base of the little finger, and the outer side of the heel is connected from the base of the thumb to the bc. An inner vertical arch B (a so-called arch arch) is formed in a large depression on the line, and between a and c, outside on a small depression on the line connecting the outside of the heel from the base of the little finger. A vertical arch C is formed. It is also known that these three arches A, B, and C absorb and relieve the impact during walking, disperse the load, and enable stable walking with less burden on the body.
Therefore, in the conventional sock 1 that cannot sufficiently support the arch part that plays an important role during exercise, the function as an auxiliary tool for supporting the inner longitudinal arch B is not sufficiently satisfied. Also, it was insufficient to effectively support the three arches on the soles. In other words, with this conventional sock 1, it is difficult to enhance the exercise performance function of the foot during walking and assist the stable walking with less burden on the body.
Furthermore, in this conventional sock 1, as shown in FIG. 16, the support direction of the arch portion is in the circumferential direction of the foot portion 3, and in this case, the direction in which the arch portion is lifted straight from the sole 3a toward the instep 3b. Therefore, it did not fully follow the ankle movement that contributes to the tilting movement of the foot. In other words, it is preferable that the foot tilting movement at the time of walking first starts from the heel and then continues along the walking line D, and in this case, the arch portion is supported toward the ankle direction. This is because it becomes more effective.
In other words, in the conventional sock 1, it is difficult to sufficiently support the arch of the arch (inner vertical arch) among the three arches of the sole. The feeling of fatigue was not reduced.

  SUMMARY OF THE INVENTION Therefore, a main object of the present invention is to provide a sock capable of enhancing the performance performance of foot movement and effectively reducing fatigue by effectively supporting the arch. .

The sock according to the present invention is a sock formed by a knitted fabric structure, and is connected to the instep, the arch, the instep and the arch from the instep to the arch in the circumferential direction of the foot. When the socks are worn, the arch tightening force is X, the foot side tightening force is Y, and the instep is tightened. When the force is Z, the knitting of the knitted fabric structure of the three regions is changed so that X>Y> Z.
In this case, looking at the tightening force (compression pressure) of the parts that are in contact with the three areas, the instep part is the low support pressure area, the arch part is the high support pressure area, and the foot side part is Middle support pressure area. That is, in the sock according to the present invention, the tightening force (pressure) acting on the three support regions is changed in response to the non-uniform cross-sectional shape of the foot from the instep to the arch. It is configured as follows. Therefore, when the sock according to the present invention is worn, it is possible to effectively support and activate the three arches of the sole according to the three support regions. In particular, since the arch part, which is the high support pressure region, is more effectively applied with a tightening force (pressure), the arch part is more effectively applied during exercise such as walking and running. It is possible to support and assist the arch function (inner vertical arch) by lifting and arching.
Further, in the sock according to the present invention, the knitting of the knitted fabric structure in the three regions is represented by α as the stretchability of the knitted fabric structure of the arch portion, and β as the stretchability of the knitted fabric tissue of the side surface portion. It is preferable that the knitted fabric structures of three regions are knitted so that α <β <γ, where γ is the stretchability of the knitted fabric structure.
In this case, the stretchability of the knitted fabric structure in each region is changed according to the support force desired for the three support pressure regions. In other words, even if a high pressure is applied to the instep portion of the foot, which has a large swell, it is possible to relieve the pressure by the stretch γ of the knitted fabric structure, and the support force required for the instep portion is given. It will be. Therefore, unlike the conventional socks formed with a uniform knitted fabric structure, the support force required for the arch is not hindered by the pressure applied to the instep.
Further, in the sock according to the present invention, it is preferable that the knitted fabric structure is knitted so that the support direction of the arch portion is supported from the arch portion toward the ankle as viewed in the longitudinal direction of the foot. It is.
In this case, since the support pressure region applied to the arch is lifted up toward the ankle, a feeling of wearing is obtained such that the arch is lifted toward the ankle, and the arch of the arch (inside It becomes possible to support and assist the vertical arch function more effectively. Therefore, when this sock is worn, the foot movement during walking is performed more smoothly along the walking line D.
Further, in the sock according to the present invention, the three regions are further divided into two regions, an inner vertical arch side and an outer vertical arch side, out of the three arches on the sole, and the inner region is more inside than the outer vertical arch side. It is even more preferable that the knitted fabric structures of the three regions on the inner longitudinal arch side are knitted so that the tightening force on the longitudinal arch side is increased.
In this case, the three regions divided in the circumferential direction of the foot from the instep to the arch are further divided into two on the inner vertical arch side and the outer vertical arch side of the sole when viewed in the vertical direction of the foot. This makes it possible to subdivide the support pressure region. And by knitting the knitted fabric structure so that the tightening force on the inner vertical arch side becomes larger, the arch (inner vertical arch) structure has a more desirable arch structure and supports the arch part. It becomes possible to give a more desirable support force depending on the region. Therefore, in this sock, the three arches of the lateral arch, the inner vertical arch, and the outer vertical arch are more effectively supported so that the three arch structures of the sole function normally around the inner vertical arch. Is possible.

According to the sock according to the present invention, by effectively supporting the arch, a sock capable of improving the performance performance of the foot movement and reducing the feeling of fatigue can be obtained.
That is, when the sock according to the present invention is worn, the three arch structure of the sole is desirable, and the circumferential direction of the foot is adjusted to the three arches of the sole so that it can be lifted up from the arch to the ankle direction. Since the power control of the three support pressure areas can be performed in the vertical direction of the foot, the three arch functions of the sole can be activated centering on the inner vertical arch (arch arch). Therefore, wearing socks according to the present invention prevents flat feet caused by dysfunction due to collapse of the arch (inner longitudinal arch), open legs caused by dysfunction due to collapse of the lateral arch (front arch), etc. Therefore, it can be expected as an auxiliary tool, and a comfortable wearing feeling can be obtained. In addition, if the socks according to the present invention are worn, the outer vertical arch can be activated, so that when walking, the tilting movement along the normal walking line can be promoted and the body is not burdened efficiently. Walking is possible, which helps to reduce foot fatigue and prevent injury.

  The above-described object, other objects, features, and advantages of the present invention will become more apparent from the following description of the best mode for carrying out the invention with reference to the drawings.

It is a side view solution figure which shows an example of embodiment of the sock concerning this invention. It is a perspective view solution figure which shows the principal part when wearing the socks shown in FIG. It is a perspective view solution figure which shows the other principal part when wearing the socks shown in FIG. It is a schematic explanatory drawing when the support area | region of the socks shown in FIG.1, FIG.2 and FIG.3 is seen from the side surface side. FIG. 4 is a schematic explanatory diagram when the support region of the sock illustrated in FIGS. 1, 2, and 3 is viewed from the bottom surface side, and particularly, a schematic explanatory diagram illustrating a support direction of the arch portion. It is a schematic explanatory drawing which shows three arch structures and a walk line of a sole. It is an organization chart which shows the principal part of the knitted fabric structure | tissue of the instep part of the socks shown in FIG.1, FIG.2 and FIG.3. It is a loop figure of the knitted fabric structure | tissue of FIG. It is an organization chart which shows the principal part of the knitted fabric structure | tissue of the arch part of the socks shown in FIG.1, FIG.2 and FIG.3. FIG. 10 is a loop diagram of the knitted fabric structure of FIG. 9. It is an organization chart which shows the principal part of the knitted fabric structure | tissue of the leg side part of the socks shown in FIG.1, FIG.2 and FIG.3. FIG. 12 is a loop diagram of the knitted fabric structure of FIG. 11. FIG. 4 is an organization chart showing another main part of the knitted fabric structure of the arch part and the foot side part of the sock shown in FIGS. 1, 2, and 3. It is a loop figure of the knitted fabric structure | tissue of FIG. It is a bottom view solution figure which shows the principal part of the other example of embodiment of the sock concerning this invention. It is a schematic explanatory drawing when an example of the conventional socks which are the background of this invention is seen from the side, Comprising: It is a schematic explanatory drawing which shows the support area | region and support direction especially.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Socks 12 Instep part 14 arch part 16 foot side part 18 Lifting stitch 18a ridge line a main ryukyu b small ryukyu c rib rib t mountain apex A side arch (front arch)
B Inside vertical arch (arch arch)
C Outer vertical arch D Walking line CL-CL Reference line

The sock according to the present invention can improve the performance ability of the movement of the foot and reduce the feeling of fatigue in the region from the upper part of the foot of the sock formed by the knitted fabric structure to the arch part. By dividing the circumferentially abutting part into three areas, the instep part, the arch part and the foot side part, and changing the knitting of the knitted fabric structure according to the support force (clamping force) required for each area This was achieved by controlling the support capabilities of each area.
Furthermore, in the sock according to the present invention, among the three arches of the sole, in particular, the arch of the arch is effectively supported, and the support area of the arch is lifted up in the ankle direction, whereby the inner vertical arch It became possible to regenerate and activate the three arches on the sole of the foot. For this reason, when the sock according to the present invention is worn, it is possible to relieve fatigue and burden on the foot and enhance the exercise performance function. That is, it excels in motor function at the time of wearing, and fatigue due to long-time exercise is reduced.

FIG. 1 is a side view showing an example of an embodiment of a sock according to the present invention. FIG. 2 is a perspective view illustrating a main part when the sock shown in FIG. 1 is worn. FIG. 3 is a perspective view showing another main part when the sock shown in FIG. 1 is worn.
A sock 10 according to the present embodiment is a sock formed by a knitted fabric structure, and is formed as a support pressure region divided into three regions in the circumferential direction of the foot from the instep to the arch. 12, including an arch portion 14 and a foot side portion 16. The foot side surface portion 16 is disposed between the instep portion 12 and the arch portion 14 and is connected to the instep portion 12 and the arch portion 14. In this embodiment example, the foot side surface portion 16 is sandwiched between the instep portion 12 and the arch portion 14 and is disposed so as to be covered with the instep portion 12. The lengths of the foot of the arch portion 14 and the foot side surface portion 16 in the vertical direction are substantially the same. Further, the length of the foot of the arch portion 14 and the foot side portion 16 in the circumferential direction of the arch portion 14 is formed to be several times longer than that of the foot side portion 16, for example.

  When the sock 10 is worn, the sock 10 has a tightening force of the arch portion 14 as X, a tightening force of the foot side surface portion 16 as Y, and a tightening force of the instep portion 12 as Z. At this time, the knitted fabric structure of the three regions of the instep portion 12, the arch portion 14, and the foot side surface portion 16 is knitted so that X> Y> Z. In this case, when the stretchability of the knitted fabric structure of the arch portion 14 is α, the stretchability of the knitted fabric tissue of the foot side surface portion 16 is β, and the stretchability of the knitted fabric tissue of the instep portion 12 is γ, α <Β <γ, that is, by changing the knitting method of the knitted fabric structure in the three areas of the instep part 12, the arch part 14, and the foot side part 16, the stretchability of the knitted fabric structure in each area By making a difference, a pressure difference is given to the tightening force X, Y, Z in each region.

In the sock 10 of the present embodiment, the instep portion 12 is formed of, for example, a flat knitted portion and a mesh (watermark) portion as shown in FIGS. 7 and 8. As shown in FIG. 8, the flat knitted portion has a flat portion in which the front yarn and the back yarn are doubled, and the mesh (watermark) portion has only the back yarn as shown in FIG. The knitted fabric is knitted into flat knitting, and the surface yarn is inserted without knitting. In this case, the mesh (watermark) portion is arranged in all courses, and in each wale, two meshes are arranged every two eyes in the wale direction. An elastic yarn such as a rubber yarn is inserted into the flat knitting portion. In FIG. 8, the straight portion of the elastic yarn indicates that the elastic yarn is inserted and arranged between the flat stitch and the flat stitch, and the elastic yarn is free in the inverted U-shaped portion of the elastic yarn. It shows that it is in a state.
In the knitted fabric structure of the instep portion 12, a mesh (watermark) portion is knitted in each course. Further, by arranging the mesh (watermark) part, the air permeability and the heat dissipation are improved, and the smell of sebum or sweat of the wearer's foot is hardly trapped.

The foot side surface portion 16 is formed of a flat knitted portion and a mesh (watermark) portion, like the instep portion 12, but has a knitting that is less stretchable than the knitted fabric structure of the instep portion 12. . That is, the knitted fabric structure of the foot side surface portion 16 has a flat knitted portion and a mesh (openwork) portion of 1 as compared with the knitted fabric structure of the instep portion 12, as shown in FIGS. It is arranged every other course. Further, elastic yarns such as rubber yarns are inserted into the flat knitted portion every other stitch in the wale direction. In FIG. 12, the straight portion of the elastic yarn indicates that the elastic yarn is inserted and arranged between the flat stitch and the flat stitch, and the inverted U-shaped portion of the elastic yarn is free of the elastic yarn. It shows that it is in a state.
In the foot side surface portion 16, flat knitted portions are knitted every other course, so that the foot side surface portion 16 is formed in a knitted fabric structure that is less stretchable than the above-described instep portion 12.

For example, as shown in FIGS. 9 and 10, the arch portion 14 is formed of a flat knitted portion and, for example, a second float (floating portion) portion formed by floating knitting. In this case, the flat knitting portions are arranged every other course. Further, elastic yarns such as rubber yarns are inserted into the flat knitting portion and the floating knitting portion every other stitch in the wale direction. In FIG. 10, the straight line portion of the elastic yarn indicates that the elastic yarn is inserted and arranged between the flat stitch and the flat stitch, or between the float and the float. The letter-shaped portion indicates that the elastic yarn is in a free state.
In the arch portion 14, flat knitting portions are arranged every other course, and floats (floating portions) are knitted every other course, so that the knitting is less stretchable than the foot side portion 16 described above. It is formed in a local organization. The arch portion 14 can be knitted with reinforcing yarn (mole) that forms the same loop as the back yarn, for example. As the additional thread, for example, an elastic thread may be used.

Further, in the sock 10 of the present embodiment, the arch portion 14 is supported from the arch portion toward the ankle in the longitudinal direction of the foot, for example, in FIGS. 1, 2, 3, and 4. As shown, lift-up stitches 18 are inserted and knitted in the knitted fabric structure of the arch portion 14 and the foot side surface portion 16. In this case, a plurality of rows of lift-up stitches 18 are inserted and knitted so as to obliquely move obliquely upward from the arch portion toward the ankle.
As shown in FIGS. 13 and 14, these lift-up stitches 18 are formed on the arch part 14 and the foot side part 16, for example, with a mesh (openwork) part obliquely upward from the arch part toward the ankle. It is formed by inserting and knitting so as to skew.
Although not shown in FIGS. 13 and 14 for the sake of convenience, the flat knitted portion on the foot side surface portion 16 side, and the flat knitted portion and the floating knitted portion on the arch portion 14 side are each rubber. Elastic yarn such as yarn is knitted.

  Since the lift-up stitches 18 are inserted into the knitted fabric structure of the arch portion 14 and the foot side surface portion 16, the arch portion is tightened so as to be effectively lifted up in the ankle direction. 3, the knitted fabric structure of the arch portion 14 and the foot side surface portion 16 can follow the movement of the ankle. In addition, the pattern and the number of courses of the mesh (watermark) part inserted in the knitted fabric structure of the arch portion 14 and the foot side surface portion 16 can be appropriately changed.

  Further, when viewed from the sole, these lift-up stitches 18 are arranged in a mountain shape, for example, as shown in FIG. When the center line of the foot indicated by the alternate long and short dash line extending in the longitudinal direction of the sole of the foot is defined as the reference line CL-CL, each of the lift-up stitches 18 has a peak t of the mountain shape on the reference line CL-CL. Will be located. Each lift-up stitch 18 has a ridge line 18a extending from the mountain-shaped apex t to the inside and the outside of the foot, respectively. As shown in FIG. They are arranged symmetrically around CL-CL.

  In this case, in the sock 10 according to the present embodiment, the three areas of the instep part 12, the arch part 14, and the foot side part 16 can be seen from the sole, for example, as shown in FIG. Is further divided into two regions of the inner vertical arch B side and the outer vertical arch C side. That is, three support pressure regions are respectively formed on the inner longitudinal arch B side and the outer longitudinal arch C side with the reference line CL-CL as the center. Then, the knitted fabric structures of the three regions on the inner longitudinal arch B side are knitted so that the tightening force on the inner longitudinal arch B side becomes larger than the tightening force on the outer longitudinal arch C side.

  In the above-described lift-up stitch 18, as shown in FIG. 5, the mountain-shaped apex t of the lift-up stitch 18 is positioned on the foot reference line CL-CL as shown in FIG. Although arranged, the apex t of the mountain shape of the lift-up stitch 18 is, for example, on the arch-shaped reference line CL-CL corresponding to the line of the inner vertical arch B (arch arch) as shown in FIG. It is more preferable that they are arranged so as to be positioned in the position. In this case, the three regions of the instep portion 12, the arch portion 14, and the foot side surface portion 16 can more effectively support the three arches A, B, and C of the sole.

In the sock 10 according to this embodiment, when the sock 10 is worn, the instep portion 12 becomes a low support pressure region and the arch portion 14 is A high support pressure region is formed, and the foot side surface portion 16 is formed in the middle support pressure region.
By the way, the pressure applied to the person's foot from the worn socks is usually the knitted fabric structure where the socks are uniform and the cross-sectional shape of the person's foot is assumed to be uniform. However, since the cross-sectional shape of a person's foot is actually non-uniform, the pressure applied to the foot from the circumferential direction of the foot is uniform when the knitted fabric structure of the socks is uniform. It becomes different, and a pressure difference is generated in the tightening pressure (contact pressure) acting on each part in the circumferential direction of the foot.

  On the other hand, in the sock 10 of the present embodiment, the pressure acting on the three support regions is made corresponding to the non-uniform cross-sectional shape of the foot from the instep of the person to the arch. It is configured to change. Therefore, it is possible to effectively support and activate the three arches of the sole (see A, B, and C in FIG. 6) according to the three support areas. In this case, since the arch portion 14 that is the high support pressure region is more effectively applied with pressure, the arch arch can be lifted more effectively during exercise such as walking and running. (Inner vertical arch) function can be supported and assisted.

  Moreover, in the sock 10 of the present embodiment example, as described above, the stretchability of the knitted fabric structure in each region is changed according to the support force desired for the three support pressure regions. For this reason, even if a high pressure is applied to the instep portion of the foot, which has a large swell, the pressure can be relaxed by the stretch γ of the knitted fabric structure, and the support force required for the instep portion 12 is provided. Can do. Therefore, there is no possibility that the support force required for the arch is obstructed by the pressure applied to the instep portion 12 as in the conventional socks shown in Patent Document 1 formed with a uniform knitted fabric structure.

  Furthermore, in the sock 10 of the present embodiment, the support pressure region applied to the arch 14 is lifted up toward the ankle by knitting the lift-up stitches 18, so the arch portion is in the ankle direction. A feeling of wearing that can be lifted upwards is obtained, and the function of the arch arch (inner vertical arch B) shown in FIG. 6 can be supported and assisted more effectively. Therefore, when the sock 10 of the present embodiment is worn, the arch can be more effectively compared to the sock 10 that is supported so as to be lifted only in the circumferential direction of the foot like the conventional sock 1 shown in FIG. Flattening can be prevented. Furthermore, with this sock 10, the foot tilting movement during walking can be performed more smoothly along the walking line D shown in FIG.

  According to the sock 10 of the present embodiment example, by effectively supporting the arch, the performance ability of the exercise of the foot can be enhanced, and the feeling of fatigue can be reduced. That is, when this sock 10 is worn, power control of three support pressure regions can be performed in the circumferential direction of the foot and the vertical direction of the foot so that the ankle can be lifted up from the arch, as shown in FIG. The functions of the three arches A, B, and C on the sole can be regenerated and activated with the inner vertical arch B (arch arch) as the center.

  Therefore, if this sock 10 is worn, the flat foot caused by the dysfunction due to the collapse of the arch (inner vertical arch B), the open leg caused by the dysfunction caused by the collapse of the lateral arch A (front arch), and the like are prevented. Can be expected as an auxiliary tool, and a comfortable wearing feeling can be obtained. Furthermore, since the outer longitudinal arch A can also be activated, it is possible to promote a tilting motion along a normal walking line during walking. Therefore, if the socks 10 are worn, efficient walking without burdening the body is possible, which is useful for reducing foot fatigue and preventing injury.

Furthermore, in the sock 10 of the present embodiment, the three regions divided in the circumferential direction of the foot from the instep to the arch are viewed in the longitudinal direction of the foot, and the inner longitudinal arch B side of the sole and the outer longitudinal arch By dividing into two on the C side, the support pressure region is subdivided (see, for example, FIG. 5). In this case, since the knitted fabric structure is knitted so that the tightening force on the inner longitudinal arch B side is increased, the arch structure (inner longitudinal arch B) is a more desirable arch structure. Therefore, a more desirable support force is given to the arch portion 14.
Therefore, in this sock 10, the three arch structures of the soles function normally around the inner longitudinal arch B, and the three arches of the lateral arch A, the inner longitudinal arch B, and the outer longitudinal arch C shown in FIG. The arch structure can be more effectively supported.

In the sock 10 of the present embodiment shown in FIGS. 1, 2, 3, etc., the knitted fabric structure of the instep portion 12 is knitted with a flat knitted portion and a mesh (watermark) [2 × 2 mesh] portion. However, the present invention is not limited to this. For example, flat knitting or pile knitting may be used for knitting, and flat knitting, mesh knitting, pile knitting, knitting, or other knitting may be combined as appropriate. It may be. That is, the knitting method for imparting stretchability to the knitted fabric structure in the low support region of the instep portion 12 can be variously changed.
The knitted fabric structure of the arch portion 14 is knitted by a flat knitted portion and a float (floating) portion, for example, by floating knitting, and the knitted fabric structure of the foot side surface portion 16 is a flat knitted portion. The knitted fabric is preferably knitted with a mesh (watermark) portion [1 × 1 mesh]. However, the knitted fabric structure is not limited, and the knitted fabric is selected according to the desired pressure applied to the support region. The organization can be changed as appropriate.

  In the embodiment described above, the material of the knitting yarn is not particularly limited, and the surface yarn is cotton yarn, silk acrylic yarn, hemp yarn, cotton acrylic blended yarn, wool yarn, wool acrylic blended yarn, silk yarn. Threads that can be used for socks such as hemp acrylic blended yarns and nylon yarns, and the cotton number can also be used with the wire number corresponding to the desired appropriate characteristics. Further, the back yarn is a yarn that can be used for socks such as nylon yarn, polyester yarn, core yarn, polyurethane cover yarn, etc., and denier can also be used that corresponds to denier that meets the desired characteristics. Furthermore, the elastic yarn is not limited to the rubber yarn, and various other elastic yarns having desired elasticity can be used.

  The socks according to the present invention can be applied to various socks knitted using a sock circular knitting machine, such as sneaker socks, crew socks, high socks socks, short socks, and foot covers. Alternatively, it can be applied to stockings and the like as appropriate. The sock according to the present invention is preferably applied to sports socks, but besides this, it can be widely applied to ladies' socks, men's socks, casual socks, business socks and the like.

A sock according to the present invention is a sock formed by a knitted fabric structure, and is connected to an instep part, an arch part, an instep part and an arch part in a circumferential direction of the foot from the instep to the arch. When the socks are worn, the arch tightening force is X, the foot side tightening force is Y, and the instep is tightened. When the force is Z, the knitting of the knitted fabric structure of the three regions is changed so that X>Y> Z, and the support direction of the arch is in the vertical direction of the foot, and the direction from the arch to the ankle The sock is characterized in that the knitted fabric structure is knitted so as to be supported toward the head.
In this case, looking at the tightening force (compression pressure) of the parts that are in contact with the three areas, the instep part is the low support pressure area, the arch part is the high support pressure area, and the foot side part is Middle support pressure area. That is, in the sock according to the present invention, the tightening force (pressure) acting on the three support regions is changed in response to the non-uniform cross-sectional shape of the foot from the instep to the arch. It is configured as follows. Therefore, when the sock according to the present invention is worn, it is possible to effectively support and activate the three arches of the sole according to the three support regions. Then, in particular, the arch portion composed of a high support wearing pressure region, since more effective tightening force (arrival pressure) is applied, walking, upon movement of such run-learning, more effective arch portion It is possible to support and assist the arch function (inner vertical arch) function by lifting the arch. Furthermore, since the support pressure region on the arch is lifted up toward the ankle, a feeling of wearing that the arch is lifted toward the ankle is obtained, and the arch of the arch (inner vertical Arch) function can be supported and assisted more effectively. Therefore, when this sock is worn, the foot movement during walking is performed more smoothly along the walking line D.
Further, in the sock according to the present invention, the knitting of the knitted fabric structure in the three regions is represented by α as the stretchability of the knitted fabric structure of the arch portion, and β as the stretchability of the knitted fabric tissue of the side surface portion. It is preferable that the knitted fabric structures of three regions are knitted so that α <β <γ, where γ is the stretchability of the knitted fabric structure.
In this case, the stretchability of the knitted fabric structure in each region is changed according to the support force desired for the three support pressure regions. In other words, even if a high pressure is applied to the instep portion of the foot, which has a large swell, it is possible to relieve the pressure by the stretch γ of the knitted fabric structure, and the support force required for the instep portion is given. It will be. Therefore, as in the conventional sock formed with a uniform knitted tissue support force required for the arch to availability and to be inhibited by the pressure exerted on the foot instep.
Furthermore , in the sock according to the present invention, the three regions are further divided into two regions, an inner longitudinal arch side and an outer longitudinal arch side, of the three arches of the sole, and the inner region is located on the inner side of the outer longitudinal arch side. It is even more preferable that the knitted fabric structures of the three regions on the inner longitudinal arch side are knitted so that the tightening force on the longitudinal arch side is increased.
In this case, the three regions divided in the circumferential direction of the foot from the instep to the arch are further divided into two on the inner vertical arch side and the outer vertical arch side of the sole when viewed in the vertical direction of the foot. This makes it possible to subdivide the support pressure region. And by knitting the knitted fabric structure so that the tightening force on the inner vertical arch side becomes larger, the arch (inner vertical arch) structure has a more desirable arch structure and supports the arch part. It becomes possible to give a more desirable support force depending on the region. Therefore, in this sock, the three arches of the lateral arch, the inner vertical arch, and the outer vertical arch are more effectively supported so that the three arch structures of the sole function normally around the inner vertical arch. Is possible.

Claims (4)

A sock formed by a knitted fabric structure,
In the circumferential direction of the foot from the instep to the arch, including the three areas divided into the instep, the arch, the foot side connected to the instep and the arch,
When the sock is worn, X>Y>, where X is the tightening force of the arch portion, Y is the tightening force of the side surface portion, and Z is the tightening force of the instep portion. A sock characterized by changing the knitting of the knitted fabric structure of the three regions so as to be Z.   In the knitting of the knitted fabric structure of the three regions, the stretchability of the knitted fabric structure of the arch portion is α, the stretchability of the knitted fabric tissue of the foot side portion is β, and the knitted fabric tissue of the instep portion is The sock according to claim 1, wherein the knitted fabric structure of the three regions is knitted so that α <β <γ, where γ is the stretchability.   The knitted fabric structure is knitted so that the support direction of the arch portion is supported from the arch portion toward the ankle as viewed in the longitudinal direction of the foot. The sock according to claim 2.   The three regions are further divided into two regions, an inner vertical arch side and an outer vertical arch side, of the three arches on the sole, and the tightening on the inner vertical arch side rather than the outer vertical arch side. The sock according to any one of claims 1 to 3, wherein a knitted fabric structure of three regions on the inner longitudinal arch side is knitted so as to increase an applied force.

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