阅读说明：本技术 袜子 (Socks ) 是由 原进 滨崎直视 于 2020-03-26 设计创作，主要内容包括：本发明的一个实施方式提供的袜子(1)包括：具有伸缩性且包含拇趾关节侧方区域(P1)以及小趾关节侧方区域(P2)的主体部,以及配置在拇趾关节侧方区域(P1)和所述小趾关节侧方区域(P2)的周围、可以抑制所述区域(P1、P2)相对于脚(F)的向下方向和向前后方向的偏移的低伸缩部(10)。低伸缩部(10)具有与主体部(2)相比伸缩性低以及与主体部(2)相比对脚(F)的摩擦大的特性中的至少一方。(One embodiment of the present invention provides a sock (1) including: a main body part having stretchability and including a hallux joint side region (P1) and a little toe joint side region (P2), and a low stretch part (10) which is disposed around the hallux joint side region (P1) and the little toe joint side region (P2) and which can suppress downward and forward and backward deviations of the regions (P1, P2) with respect to a foot (F). The low-expansion section (10) has at least one of the characteristics of being less expandable and contractible than the main body section (2) and having greater friction against the foot (F) than the main body section (2).)

1. A sock, comprising:

a main body portion having stretchability, covering at least a hallux joint and a little toe joint from a toe, and having a hallux joint side region covering a side of the hallux joint and a little toe joint side region covering a side of the little toe joint; and

a low expansion/contraction portion which is disposed around at least one of the area on the side of the hallux joint and the area on the side of the little toe joint and which can suppress the deviation of the area with respect to the downward direction and the forward/backward direction of the foot when the thickness direction of the foot is defined as the vertical direction and the length direction of the foot is defined as the forward/backward direction,

the low-expansion portion has at least one of a low expansion/contraction property as compared with the main body portion and a high friction with the foot as compared with the main body portion.

2. A sock according to claim 1, wherein the low stretch portion is arranged in an upward direction and a front-rear direction with respect to the hallux joint side region or the little toe joint side region.

3. A sock according to claim 1 or 2, wherein the inner surface of the low stretch portion in contact with the foot has a greater friction against the foot than the inner surface of the body portion in contact with the foot.

4. A sock according to any of claims 1 to 3, wherein the low stretch sections are provided around the area lateral to the hallux joint and the area lateral to the little toe joint, respectively.

5. A sock according to any of claims 1 to 4, wherein the low stretch is in the form of a strip.

6. A sock according to claim 5, wherein the band-shaped low expansion/contraction portion is arranged so as to be sandwiched from a front-rear direction of the area lateral to the hallux joint or the area lateral to the little toe joint,

the distance between the lower end portions of the two low expansion/contraction portions is not smaller than at least the width of the area lateral to the hallux joint or the area lateral to the little toe joint.

7. A sock according to claim 5 or 6, wherein the low stretch has:

a first band-shaped portion that suppresses expansion and contraction in the front-rear direction in the area lateral to the hallux joint or the area lateral to the little toe joint; and a second band-shaped portion that suppresses the vertical expansion of the region.

8. A sock according to claim 7, wherein the second strap-like portion is provided so as to sandwich the hallux joint side area or the little toe joint side area from the front to the rear direction.

9. A sock according to claim 8, wherein the low stretch section is substantially コ shaped to open to the sole side of the foot.

10. A sock according to any one of claims 7 to 9, wherein a lower end of the second band-like portion in the lower direction is located below a central position in the upper-lower direction of the area lateral to the hallux joint or the area lateral to the little toe joint.

11. The sock according to any one of claims 8 to 10, wherein a length of a side of the hallux joint side area or a length of a side of the little toe joint side area of the first band-shaped portion is smaller than a width of the hallux joint side area or the little toe joint side area,

the second band-shaped portions are longer than the first band-shaped portions, and are arranged in a figure-of-eight shape such that the distance between the second band-shaped portions increases as the second band-shaped portions approach below the second band-shaped portions.

12. A sock according to any of claims 7 to 11, wherein the first and second strap portions are formed continuously.

13. A sock according to any of claims 1 to 12, wherein the main body portion is formed of a knitted fabric having a toe portion covering the toe, a sole portion covering the sole of the foot, side edge portions covering both sides of the foot, and a heel portion covering the heel portion of the foot.

14. A sock according to claim 13, wherein it may be a ankle sock exposing the instep and ankle of the foot.

15. A sock according to claim 14, wherein the footlet is a shallow mouth with a portion of the crotch of the toes of the foot exposed.

16. A sock according to claim 15, wherein the sock tip portion is gently inclined from the big toe to the little toe along the toe outline.

17. A sock according to any of claims 13 to 16, wherein an anti-slip portion is provided on the inner surface of the heel portion of the sock.

18. A sock according to any of claims 1 to 17, wherein the low stretch section is a resin coated on an inner surface of the main body section.

19. A sock according to any of claims 1 to 18, wherein the body portion is formed with a plurality of toe receiving portions at a toe portion covering the toes.

Technical Field

The present invention relates to a sock worn on a foot, and more particularly, to a sock that suppresses shifting or falling off due to movement such as walking.

Cross reference to related art

The priority and interest of the japanese patent application with application number 2019-.

Disclosure of Invention

Problems to be solved by the invention

However, in patent document 1, even if the stretchable portion is provided in front of the toe portion, there is a problem that the shift or rotation of the toe portion cannot be effectively prevented. Further, if the tightening part is increased, the wearing feeling is deteriorated, and the tightening force is increased, which causes a sense of discomfort. That is, the removal is prevented by the tightening, and the effect is reduced if the tightening is weak, and the wearing feeling is deteriorated if the tightening is strong, which cannot be said to be an ideal choice.

Patent document 2 discloses a structure in which a silicon portion is provided in the width direction of the instep portion, but the skin of the instep portion is relatively thin unlike the skin of the heel portion, and therefore, there is a problem in that the skin of the instep portion is easily inflamed by friction with the silicon portion. In the shallow ankle sock in which a part of the toe is exposed, the silicon portion is located on the upper surface of the toe, and the contact area between the silicon portion and the skin becomes small, which causes a problem that a sufficient anti-slip effect cannot be obtained.

In view of the above problems, an object of one embodiment of the present invention is to provide a sock capable of effectively suppressing displacement or detachment of the sock tip without generating stress in a situation such as tightening or skin damage.

Means for solving the problem

In order to solve the above problem, a sock according to an embodiment of the present invention includes: a main body part having flexibility, covering at least from a toe to a big toe metatarsophalangeal joint and a little toe metatarsophalangeal joint, and including a big toe joint side area covering the big toe metatarsophalangeal joint side and a little toe joint side area covering the little toe metatarsophalangeal joint side; and a low expansion/contraction portion that is disposed around at least one of the area on the side of the hallux joint and the area on the side of the little toe joint, and that can suppress the area from shifting in the downward direction and the forward/backward direction of the foot when the thickness direction of the foot is defined as the vertical direction and the longitudinal direction of the foot is defined as the forward/backward direction, wherein the low expansion/contraction portion has at least one of characteristics of low expansion/contraction performance as compared with the main body portion and greater friction against the foot as compared with the main body portion.

Effects of the invention

According to one embodiment of the present invention, it is possible to provide a sock capable of effectively suppressing displacement or detachment of the sock tip without generating stress such as tightening or damage to the skin.

Drawings

Fig. 1 (a) is a perspective view of an external structure of a right footlet according to an embodiment of the present invention. (b) The figure is a diagram illustrating the vertical direction and the front-back direction of the sock.

Fig. 2 is a diagram illustrating a big toe metatarsophalangeal joint and a little toe metatarsophalangeal joint. (a) Is a plan view of the dorsal bone of the right foot. (b) Is a left side view of the right foot bone. (c) Is a right side view of the right foot bone.

Fig. 3 is a diagram showing the movement of the load applied to the sole of a foot during walking.

Fig. 4 is a diagram illustrating a transverse arch of a sole of a foot. (a) Is a perspective view showing the right foot of the lateral arch of the sole. (b) Is a skeletal plan view as viewed from the right sole side for explaining the transverse arch. (c) Is a cross-sectional view of the right foot skeleton illustrating the transverse arch.

Fig. 5 is a diagram illustrating skin thickness. (a) The figure shows the thickness of the skin of the big toe metatarsophalangeal joint and the little toe metatarsophalangeal joint. (b) Is a diagram showing the thickness of the skin on the upper side of the toes.

Fig. 6(a) to 6(o) are views showing modifications of the low expansion/contraction portion of the present embodiment.

Fig. 7 is a diagram illustrating flexion of the right foot by walking or exercise about the metatarsophalangeal joint and the metatarsophalangeal joint of the big toe. (a) The figure shows the foot before bending, and (b) shows the foot in a bent state.

Detailed Description

Hereinafter, one embodiment of the present invention will be described below with reference to fig. 1 to 6.

[ Structure of socks ]

Fig. 1 (a) is a perspective view showing an external configuration of the right sock 1 according to the present embodiment. Fig. 1 (b) is a view illustrating the vertical direction and the front-back direction of the sock 1. As shown in fig. 1 (a), the sock 1 includes a main body 2 worn on a foot F, and a low stretch portion 10 for preventing the main body 2 from shifting or falling off. In the following description, the thickness direction of the leg is defined as the vertical direction (y direction in fig. 1 (b)), and the longitudinal direction of the leg is defined as the front-rear direction (x direction in fig. 1 (b)).

(Main body 2)

The main body portion 2 is formed of a sole portion 21 covering the sole of the foot F, a toe portion 22 covering the toe of the foot F, side portions 23 covering both sides of the foot F, and a heel portion 24 covering the heel of the foot F. The body portion 2 is provided with a welt portion 2a for putting in and out a foot on the side opposite to the sock bottom portion 21 in the vertical direction. Further, it is preferable that a slip prevention part is provided on the inner surface of the heel part 24.

The throat portion 2a is opened wide to expose the instep and the ankle, whereby the main body portion 2 is entirely hidden in the shoe when the shoe is worn. The sock 1 has a shallow shape in which a part of the toe crotch of the foot F is exposed.

The body portion 2 covers at least from the toe of the foot F to the big toe metatarsophalangeal joint Q1 and the little toe metatarsophalangeal joint Q2. The main body portion 2 is made of a highly stretchable fabric and includes a hallux joint side region P1 covering the lateral side (lateral side) of the hallux joint Q1 and a little toe joint side region P2 covering the lateral side (lateral side) of the little toe metatarsophalangeal joint Q2.

Fig. 2 is a diagram illustrating a big toe metatarsophalangeal joint Q1 and a little toe metatarsophalangeal joint Q2. Fig. 2 (a) is a plan view of the dorsal bone of the right foot. Fig. 2 (b) is a left side view of the right foot skeleton. Fig. 2 (c) is a right side view of the right foot skeleton. As shown in fig. 2 (a), the metatarsophalangeal joint refers to the joint connecting phalanx N1 and metatarsal N2. As shown in fig. 2 (a) to 2 (c), the big toe metatarsophalangeal joint Q1 is a joint corresponding to the big toe among the metatarsophalangeal joints. The little-toe metatarsophalangeal joint Q2 refers to the joint corresponding to the little toe in the metatarsophalangeal joint.

The hallux joint side region P1 is a region of the main body portion 2 that covers the side of the hallux joint Q1 in the worn state of the sock 1. The hallux joint side region P1 may be a region that can cover at least the region Q11 protruding to the outermost side of the hallux joint Q1 in the worn state of the sock 1.

The little toe joint side region P2 is a region of the main body portion 2 that covers the side of the little toe joint Q2 in the worn state of the sock 1. The little toe joint side region P2 may be any region that can cover at least the region Q12 protruding to the outermost side of the little toe joint Q2 in the worn state of the sock 1.

(Fabric of body portion)

The sock 1 of the present invention may be made of a fabric having stretchability in the width direction. Thus, when the outer surface of the metatarsophalangeal joint spreads the fabric due to the movement of the walking center of gravity, the outer surface of the metatarsophalangeal joint is brought into close contact with the fabric, and the effect of suppressing the displacement can be enhanced. The operation of the outer face of the metatarsophalangeal joint to spread the fabric will be described in detail later. The strength of stretchability (contractile force) varies depending on the use of the sock 1, but for example, in daily use, it is sufficient if there is a contractile force to such an extent that the skin surface and the cloth are always in contact with each other, and it is not necessary to obtain a contractile force that generates a tight feeling.

The fabric may be any fabric as long as it has stretchability in accordance with the above-described object, but a knitted fabric is preferably used because the contractive force can be appropriately adjusted by the knitting structure or the knitting yarn. The fabric used for the sock 1 may be a fabric whose end face does not come loose even if the cut surface is not subjected to processing such as sewing (referred to as free cutting or optional cutting). Thus, the fabric end portion located around the periphery of the welt portion 2a is not uneven, and the periphery of the welt portion 2a is flat, so that irritation to the skin of the instep can be reduced.

In order to provide cushioning properties to the sock 1, a raised knitted fabric may be used in the sock bottom 21. The material may be nylon, or natural fibers such as cotton, or blended yarn with synthetic fibers, or may be used separately for the sole portion 21 and the side edge portion 23.

In the present embodiment, the main body 2 is preferably a knitted fabric, but the main body 2 may be formed by sewing a cloth knitted by a loom. In the main body 2, the toe portion 22 may be formed in a shape gently inclined from the big toe to the little toe along the toe outline, or a plurality of toe storage portions may be formed in the toe portion 22 covering the toe.

(Low expansion part)

The low expansion/contraction portion 10 is disposed around at least one of the hallux joint side region P1 and the little toe joint side region P2, and can suppress the shift (movement) of these regions in the downward direction and the forward/backward direction with respect to the foot F. The low expansion/contraction portion 10 has any of the following characteristics (1) and (2). The low expansion/contraction portion 10 may have the following two characteristics (1) and (2). (1) Lower stretchability than the main body 2, or (2) greater friction against the foot F than the main body 2. The friction referred to herein is a static friction coefficient, and can be calculated, for example, by the maximum static friction force (N1)/the normal force (N2). In the present embodiment, the low expansion/contraction portion 10 is provided around both the hallux joint side region P1 and the little toe joint side region P2. In addition, the low expansion and contraction part 10 disposed around the hallux joint side region P1 will be described below, and the same applies to the low expansion and contraction part 10 disposed around the little toe joint side region P2.

In the present embodiment, as shown in fig. 1 (a), the low expansion/contraction portion 10 has a belt shape. The band shape here mainly refers to a surface shape having a width and a length without a slit, and includes a shape that substantially functions as a band shape as a whole, for example, a shape in which lines or dots shown in the low expansion/contraction portion 10 in fig. 6(a) to 6(o) described later, an arbitrary partial shape, and the like are integrated into a substantially band shape. The low expansion/contraction portion 10 does not need to have a constant width, and may be partially narrow or wide, or may have a shape such as a straight line or a curved line. The low expansion/contraction part 10 includes a first band-shaped part 11c that suppresses expansion/contraction in the front-rear direction of the hallux joint side region P1, and second band-shaped parts 11a and 11b that suppress expansion/contraction in the up-down direction of the hallux joint side region P1.

The first band-shaped portion 11c is arranged to extend in the front-rear direction above the hallux joint side region P1.

The second band-shaped portion 11a and the second band-shaped portion 11b are arranged to sandwich the hallux joint side region P1 from the front-rear direction. The upper end portions of the second band portion 11a and the second band portion 11b are connected by the first band portion 11 c. In other words, the low expansion/contraction portion 10 has a substantially コ -shaped configuration that opens to the sole side of the foot F. In this case, the lower ends of the second band- like portions 11a and 11b are preferably located below the center position of the hallux joint side region P1 in the vertical direction. The first band-shaped portion 11c and the second band-shaped portions 11a and 11b may be formed in series. Further, the inner surface of the low expansion/contraction portion 10 that contacts the foot F preferably has a larger friction against the foot F than the inner surface of the main body portion 2 that contacts the foot F.

The length of the first band-shaped portion 11c is shorter than the width of the hallux joint side region P1 or the little toe joint side region P2. Thereby, the second band- like portions 11a, 11b contact the hallux joint side region P1 or the little toe joint side region P2. The second band-shaped portions 11a and 11b are longer than the first band-shaped portion 11c, and the second band-shaped portions 11a and 11b are arranged in a figure-eight shape such that the distance between the second band-shaped portion 11a and the second band-shaped portion 11b increases as the second band-shaped portions 11a and 11b move downward. As a result, as shown in fig. 7 (a) and 7 (b), the splayfoot portions of the second belt- like portions 11a and 11b naturally expand into a fan shape as the foot F bends around the metatarsophalangeal joint Q1 and the metatarsophalangeal joint Q2 due to walking or exercise. Therefore, the cloth of the sock 1 can be naturally stretched without interfering with the movement of the metatarsophalangeal joint. This makes it possible to favorably suppress the shift of the hallux joint side region P1 or the little toe joint side region P2 and the falling of the sock 1 without hindering the wearing feeling. Fig. 7 is a view illustrating flexion of the right foot F about the metatarsophalangeal joint Q1 and the metatarsophalangeal joint Q2 due to walking or exercise. Fig. 7 (a) is a view before the foot F is flexed, and fig. 7 (b) is a view showing the flexed state of the foot F.

The low expansion/contraction portion 10 is formed by the following methods (1) to (4), for example. (1) The low stretchable part 10 is formed by bonding a cloth tape having lower stretchability than the cloth of the main body part 2 to the inner surface of the main body part 2. (2) The low stretchable part 10 is formed by making the coil (density) of the low stretchable part 10 smaller than the cloth of the main body part 2. (3) The low stretch portion 10 is formed by knitting for suppressing stretch such as tuck knitting. (4) The low expansion/contraction portion 10 is formed by applying resin or adhesive sheet-like resin to the inner surface of the main body portion 2.

In the present embodiment, the low expansion/contraction portion 10 is formed by attaching a sheet-like resin to the inner surface of the main body portion 2. This can suppress the friction force against the skin, and effectively suppress the shift of the sock 1.

(effect of Low expansion part)

Fig. 3 is a diagram showing the movement of the load applied to the sole of a foot during walking. As shown in fig. 3, when the person walks, the center of gravity falls on the heel R1 and gradually moves toward the toe R4 side while the heel R1 touches the ground. On the ball side of the foot F, the center of gravity moves from the outer side (the little-toe ball region R2) to the inner side (the big-toe ball region R3) in the vicinity of the ball region as the bulge of the toe. Finally, due to the movement of the metatarsophalangeal joint, the centre of gravity moves from the ball of the foot side R3 to the toe R4, kicking off the ground plane.

When the conventional sock is worn, if the center of gravity falls on the outer side (the ball region R2 on the little toe side), the cloth in the vicinity of the little toe rotates or shifts. Further, as the center of gravity moves inward (the ball region R3 on the big toe side), the shift is further increased. Therefore, particularly in the case where the conventional socks are ankle socks with a shallow back, the cloth may fall off from the little toe and finally from the big toe. As a result, the conventional sock comes off the toe portion.

Here, as shown in fig. 4 (a) to 4 (c), the metatarsophalangeal joint has a transverse arch S1. Fig. 4 is a diagram illustrating the transverse arch S1 of the sole. Fig. 4 (a) is a perspective view showing the right foot of the plantar transverse arch S1. Fig. 4 (b) is a skeletal perspective view as viewed from the right sole side for explaining the lateral arch S1. Fig. 4 (c) is a cross-sectional view taken along F1-F2 in fig. 4 (b) for explaining the transverse arch S1. Points F1 and F2 are points at both ends on the metatarsophalangeal joint. The metatarsophalangeal joint has a shape slightly protruding in the width direction of the foot F, and when the center of gravity moves from the heel R1 to the toe R4 as shown in fig. 3 during walking, the lateral arch S1 expands in the width direction of the foot F, and the metatarsophalangeal joint protrudes further outward in the width direction of the foot F. In other words, the skeleton forming the curved surface extends in a planar shape by the transverse arch S1.

The low stretch 10 acts as a stop. Therefore, in the sock 1, the low expansion/contraction section 10 can suppress the movement of the hallux joint side region P1 and the little toe joint side region P2 in the downward direction and the forward/backward direction with respect to the foot F. Therefore, even when the user walks and the outer surface portion of the metatarsophalangeal joint (the metatarsophalangeal joint Q1 and the little-toe joint Q2) spreads the cloth of the sock 1, the side of the metatarsophalangeal joint Q1 and the area P1 lateral to the metatarsophalangeal joint do not shift. Further, the lateral side of the little toe metatarsophalangeal joint Q2 and the little toe joint lateral region P2 are not displaced.

In this way, in a state where the outer surface of the metatarsophalangeal joint spreads the cloth of the sock 1 during walking, since the sock 1 does not shift from the foot F, a force acts to press the cloth of the sock 1 against the inner side surface of the shoe, and the outer surface of the metatarsophalangeal joint comes into close contact with the sock 1. Further, since the lower portion of the low stretch portion 10 is open, the movement of the metatarsophalangeal joint during kicking-out is not obstructed. As a result, the sock 1 can be prevented from falling off the foot F.

In the present embodiment, in the sock 1, the low expansion/contraction section 10 is provided at two positions corresponding to the side of the big toe metatarsophalangeal joint Q1 and the side of the little toe metatarsophalangeal joint Q2. However, since the little toe side often falls off in the walking mechanism (mechanism), the low expansion/contraction part 10 may be provided only on the little toe metatarsophalangeal joint Q2 side.

Further, the low stretch portion 10 may be provided on the heel portion 24. This can prevent the heel portion 24 from falling off. Once the heel portion 24 comes off, the fitting feeling to the foot F is greatly reduced. In addition, since the falling of the heel portion 24 is directly related to the falling of the toe, the provision of the low stretch portion 10 on the heel portion 24 helps to prevent the falling of the toe.

(for skin lesions)

Even if resin is used for the low stretch portions 10 of the socks 1, the socks 1 can reduce skin inflammation and the like as compared with conventional socks in which resin slip-preventing portions are provided on the same edge of the instep portion (upper side of the toes). The reason for this can be supplemented from the viewpoint of skin thickness.

The stratum corneum layer of the skin becomes gradually harder and thicker as a result of being subjected to stimuli such as pressure or friction. The skin near the big toe metatarsophalangeal joint Q1 and the little toe metatarsophalangeal joint Q2 often touches the shoes during walking, and is easily irritated. In contrast, the skin on the upper side of the toes of the foot F is less irritated than the skin near the metatarsophalangeal joints. Therefore, although there is an individual difference, as shown in fig. 5 (a) and 5(b), the skin near the common big toe metatarsophalangeal joint Q1 and the small toe metatarsophalangeal joint Q2 is thicker than the skin on the upper side of the toes of the foot F.

Fig. 5 is a diagram illustrating the thickness of the skin. Fig. 5 (a) is a diagram showing the skin thickness of the big toe metatarsophalangeal joint Q1 and the little toe metatarsophalangeal joint Q2. Fig. 5(b) is a diagram showing the thickness of the skin on the upper sides of the toes of the foot F. In fig. 5 (a), thickness T1 shows the overall thickness of the skin of the big toe metatarsophalangeal joint Q1 and the little toe metatarsophalangeal joint Q2. Thickness T11 shows the thickness of skin that may be inflamed in the skin of the big toe metatarsophalangeal joint Q1 and the little toe metatarsophalangeal joint Q2. Thickness T12 shows the thickness of skin in which no inflammation occurs in the skin of the big toe metatarsophalangeal joint Q1 and the little toe metatarsophalangeal joint Q2. In fig. 5(b), the thickness T2 shows the entire thickness of the skin on the upper side of the toes of the foot F. The thickness T21 shows the thickness of skin where inflammation may occur in the skin on the upper side of the toes of the foot F. The thickness T22 shows the thickness of skin in which inflammation does not occur in the skin on the upper side of the toes of the foot F.

As shown in fig. 5 (a) and 5(b), in the sock 1, the ratio of the thickness of the skin surface where inflammation or the like occurs to the entire thickness of the skin is relatively lower than that of the conventional sock, and therefore inflammation or the like is reduced.

As described above, when walking, the outer surface portion of the metatarsophalangeal joint is applied with a force applied to the shoe. However, the low stretch section 10 of the sock 1 is provided on the metatarsophalangeal joint where the skin is relatively firm and the risk of skin diseases such as inflammation is low compared with the instep. Therefore, even if the low stretch portion 10 is formed by applying resin, the skin is less damaged. As the resin, urethane rubber or EVA (ethylene-vinyl acetate) that is mild to the skin may be used in addition to silicon.

[ modification 1]

Next, a modified example of the low expansion/contraction portion 10 will be described with reference to fig. 6(a) to 6 (o). Fig. 6(a) to 6(o) are views showing modifications of the low expansion/contraction portion 10 of the present embodiment. In the present modification, the low expansion and contraction part 10 provided around the hallux joint side region P1 is explained, and the same applies to the low expansion and contraction part 10 provided around the middle toe Q2. Further, in the big toe joint side region P1 in fig. 6, a dark portion indicates a region corresponding to the outermost side protruding region Q11 of the big toe metatarsophalangeal joint Q1.

In the above embodiment, the low expansion/contraction portion 10 is arranged in a substantially コ shape that opens to the sole side of the foot F, but the low expansion/contraction portion 10 may be arranged in a U shape, a Y shape, a V shape, or a 0 shape. The low stretching portions 10 may be provided in a dot shape at positions where movement of the cloth in the downward direction and the forward and backward direction can be suppressed. Specific examples are as follows.

For example, in the low stretch portion 10 shown in fig. 6(a), the first strip portion 11c and the second strip portions 11a and 11b in the low stretch portion 10 shown in fig. 1 (a) are formed in series. The length of the side of the first band-shaped portion 11c on the side of the hallux joint side region P1 is smaller than the width of the hallux joint side region P1, and the lower end portions of the second band-shaped portions 11a and 11b are located below the center of the hallux joint side region P1. Further, the second band-shaped portions 11a and 11b are arranged in a figure-eight shape, that is, the distance between the second band-shaped portion 11a and the second band-shaped portion 11b increases as the second band-shaped portions 11a and 11b approach downward.

In the low stretch portion 10 shown in fig. 6 (b), the first band-shaped portion 11c, the second band-shaped portion 11a, and the second band-shaped portion 11b in the low stretch portion 10 shown in fig. 1 (a) are disposed separately from each other. The length of the first band-shaped portion 11c is smaller than the width of the hallux joint side region P1, and the lower end portions of the second band-shaped portions 11a and 11b are located below the center of the hallux joint side region P1. The second band-shaped portions 11a and 11b are arranged in a figure-eight shape, that is, the distance between the second band-shaped portion 11a and the second band-shaped portion 11b increases as the second band-shaped portions 11a and 11b move downward.

In the low expansion/contraction portion 10 shown in fig. 6 (c), the lower end portion of the second band-like portion 11a located forward of the hallux joint side region P1 in the low expansion/contraction portion 10 shown in fig. 1 (b) is located below the center of the hallux joint side region P1. The lower end of the second band-like portion 11b located rearward of the hallux joint side region P1 is located above the center of the hallux joint side region P1.

In the low expansion/contraction portion 10 shown in fig. 6(d), the second belt- like portions 11a and 11b in the low expansion/contraction portion 10 shown in fig. 6 (c) are not arranged in a figure-eight shape, and the lower end portion of the second belt-like portion 11a located forward of the thumb joint side region P1 is also located above the center of the thumb joint side region P1. The second strip-shaped portion 11a and the second strip-shaped portion 11b are arranged substantially in parallel.

In the low stretch portion 10 shown in fig. 6 (e), the lower end portions of the second band- like portions 11a and 11b in the low stretch portion 10 shown in fig. 6(d) are located below the center of the thumb joint side region P1. The first belt-shaped portion 11c and the second belt-shaped portions 11a and 11b are formed by discontinuously disposing third belt-shaped portions 11d having different thicknesses and substantially parallel to the front-rear direction x. In other words, the first strip-shaped portion 11c and the second strip-shaped portions 11a and 11b in fig. 6 (e) are a shape in which the third strip-shaped portions 11d are integrated.

In the low stretch portion 10 shown in fig. 6 (f), the first strip portion 11c and the second strip portions 11a and 11b in the low stretch portion 10 shown in fig. 6 (e) are formed by the point 11e substantially gathering in a strip shape, not by the third strip portion 11 d.

In the low stretch portion 10 shown in fig. 6 (g), the first strip-shaped portion 11c and the second strip-shaped portions 11a and 11b in the low stretch portion 10 shown in fig. 6 (e) are formed by the linear portions 11f gathering in a substantially strip shape, not by the third strip-shaped portion 11 d. Specifically, the first band-shaped portion 11c is formed by disposing a plurality of linear portions 11f thinner than the first band-shaped portion 11c substantially in parallel in the front-rear direction x. The second band-shaped portions 11a and 11b are formed by disposing a plurality of linear portions 11f thinner than the second band-shaped portions 11a and 11b substantially in parallel in the vertical direction y. The length of the first band-shaped portion 11c is longer than the width of the hallux joint side region P1.

In the low stretch portion 10 shown in fig. 6 (h), the first band-shaped portion 11c and the second band-shaped portions 11a and 11b are formed in series. The lower ends of the second belt- like portions 11a and 11b are located below the center of the hallux joint side region P1, and the low expansion/contraction portion 10 is provided in a substantially コ -shaped configuration that opens to the sole side. The length of the first band-shaped portion 11c is longer than the width of the hallux joint side region P1.

In the low stretch portion 10 shown in fig. 6 (i), the first strip portion 11c and the second strip portions 11a and 11b in the low stretch portion 10 shown in fig. 6 (g) are formed by narrow wavy lines.

In fig. 6 (j), the low expansion/contraction portion 10 includes two inclined band-shaped portions 12a and 12b extending in inclined directions different from each other in the substantially front-rear direction x and the substantially vertical direction y. The inclined band-shaped portions 12a and 12b are arranged so as to sandwich the hallux joint side region P1. The inclined band-shaped portions 12a and 12b are arranged in a splayed shape, and the distance between the inclined band-shaped portion 12a and the inclined band-shaped portion 12b increases as the inclined band-shaped portions 12a and 12b approach downward.

In fig. 6 (k), the low expansion and contraction portion 10 includes circular portions 13a, 13b, 13c of a predetermined size. The circular portions 13a and 13b are arranged to sandwich the lateral hallux joint region P1 from the front to the rear, and the circular portion 13c is arranged above the lateral hallux joint region P1.

In fig. 6 (l), the low expansion and contraction portion 10 includes circular portions 13d, 13e of a predetermined size. The circular portion 13d is disposed above and in front of the hallux joint side region P1, and the circular portion 13e is disposed above and behind the hallux joint side region P1.

In fig. 6 (m), the low expansion/contraction portion 10 is provided with a plurality of linear portions 14a above the lower end portion of the hallux joint side region P1, and the plurality of linear portions 14a radially extend upward from the hallux joint side region P1 around the hallux joint side region P1.

In fig. 6 (n), the low expansion/contraction portion 10 is formed by a substantially annular ring portion 15a surrounding the hallux joint side region P1.

In fig. 6(o), the low expansion/contraction portion 10 is disposed so that the curved strip portion 16a surrounds the upper side from the lower end of the thumb joint side region P1. The curved strip-shaped portion 16a has a larger width as it approaches the center of the curved strip-shaped portion 16 a.

The shape of the low expansion/contraction portion 10 is summarized. The shape of the low stretchable part 10 may be any position, size, or shape as long as it is a structure capable of suppressing the movement of the cloth described in (1) and (2) below. (1) The cloth moves downward and forward and backward in the lateral area P1 of the hallux joint with respect to the hallux joint Q1. (2) The cloth moves in the lower direction and the front-rear direction in the little toe joint side region P2 with respect to the little toe metatarsophalangeal joint Q2. Even if the position of the lateral hallux joint region P1 with respect to the metatarsophalangeal joint Q1 or the position of the lateral little toe joint region P2 with respect to the metatarsophalangeal joint Q2 cannot be determined in the unworn state, the positional relationship may be determined. The following conditions (a) and (B) can be mentioned as a structure for suppressing the movement of the fabric in the above (1) and (2). The above modification should satisfy the following conditions.

The condition (a) is that the low expansion/contraction portion 10 must be located both forward and rearward of the front-rear direction of the hallux joint side region P1. If the low expansion/contraction portion 10 is located only in any one of the front and rear directions of the hallux joint side region P1, the positions of the hallux joint Q1 and the hallux joint side region P1 are shifted. In this regard, as described above, even if the position of the low expansion and contraction part 10 in the front-rear and rear directions of the thumb joint side region P1 cannot be determined in the unworn state, the positional relationship between the thumb joint side region P1 and the low expansion and contraction part 10 may be determined in the worn state. Here, the state in which the front, rear, and rear positions of the low stretchable part 10 in the hallux joint side region P1 cannot be determined in the unworn state means, for example, a state in which the low stretchable part 10 is significantly overlapped with the hallux metatarsophalangeal joint Q1 due to the fabric of the sock 1 being in a contracted state. In addition, the state in which the positional relationship between the thumb joint side region P1 and the low stretchable part 10 can be determined in the worn state is a state in which the low stretchable part 10 is positioned forward and rearward of the thumb joint side region P1 as a result of the elongation of the cloth on which the sock 1 is worn.

The condition (B) is that the distance between the respective components of the low expansion/contraction portion 10 is shorter than the thumb joint side region P1 when the low expansion/contraction portions 10 are connected in series or when the low expansion/contraction portions 10 are divided into a plurality of parts without being connected in series. Referring to fig. 6 (j), the distance W1 between the upper end of the inclined band-shaped portion 12a and the upper end of the inclined band-shaped portion 12b needs to be smaller than the width W2 of the hallux joint side region P1. In addition, the metatarsophalangeal joint is preferably adjacent to the low stretch 10. An increase in the distance between the metatarsophalangeal joint and the low stretch 10 causes a shift between the metatarsophalangeal joint and the low stretch 10. Therefore, even if the lateral area P1 of the big toe joint is shifted from the big toe metatarsophalangeal joint Q1 or the lateral area P2 of the little toe joint Q2, the distance between the metatarsophalangeal joint and the low expansion/contraction part 10 should be kept at a minimum distance that does not affect the removal (the toes are not exposed at all).

The low expansion/contraction portion 10 may or may not be located below the lower end portion of the hallux joint side region P1. The low expansion/contraction part 10 may have a structure in which the low expansion/contraction part 10 is engaged with at least the metatarsophalangeal joint Q1 to suppress downward displacement of the metatarsophalangeal joint side region P1 with respect to the metatarsophalangeal joint Q1. As shown in fig. 6(a), the lower end of the low expansion/contraction portion 10 (the inclined band-shaped portion 12a and the inclined band-shaped portion 12b) may extend downward beyond the upper end position H1 of the hallux joint side region P1.

In addition, the low expansion/contraction portion 10 may be located only a little in the front-rear direction of the hallux joint side region P1. The width of the low expansion/contraction portion 10 in the front-rear direction and the thickness of the low expansion/contraction portion are not particularly limited.

The sock 1 of the present invention is described by taking a shallow sock 1 as an example, but the present invention is not limited thereto. The socks 1 may be socks that can cover the metatarsophalangeal joints. The sock 1 is suitable for ankle socks, and socks such as stockings and stockings, etc. regardless of shallow or deep openings. In addition, the sock 1 may be applied to a sock covering a lower leg portion such as tights, a toe portion having only a toe, and a sock (foot cover) in which a heel portion is caught in a band-like manner.

The present invention is not limited to the above embodiments, and various modifications can be made within the scope of claims, and embodiments obtained by appropriately combining technical means disclosed in the respective embodiments are also included in the scope of protection of the present invention.

[ conclusion ]

A sock according to an embodiment of the present invention is characterized by including: a main body portion having flexibility, covering at least a hallux joint and a little toe joint from a toe, and having a hallux joint side region covering a side of the hallux joint and a little toe joint side region covering a side of the little toe joint; and a low expansion/contraction portion that is disposed around at least one of the area on the side of the hallux joint and the area on the side of the little toe joint, and that can suppress downward and forward/backward displacement of the area with respect to the foot when the thickness direction of the foot is defined as the vertical direction and the longitudinal direction of the foot is defined as the forward/backward direction, wherein the low expansion/contraction portion has at least one of characteristics of low expansion/contraction performance as compared with the main body portion and high friction with respect to the foot as compared with the main body portion.

According to the above configuration, the low expansion/contraction portion disposed around the area on the side of the hallux joint or the area on the side of the little toe joint can suppress the downward direction and the shift (movement) in the front-rear direction of the area. Therefore, the shift or falling off of the toe portion of the sock can be suppressed without tightening the foot. As a result, it is possible to realize a sock in which the shift or the falling off of the sock tip can be effectively suppressed without generating stress in a state such as tightening or damage to the skin.

In the sock according to the present invention, the low stretch portion may be arranged in an upward direction and a front-rear direction with respect to the area lateral to the hallux joint or the area lateral to the little toe joint.

According to the above configuration, the shift of the lateral area of the hallux joint or the lateral area of the little toe joint in the downward direction and the forward and backward direction can be effectively suppressed.

In the sock according to the present invention, the inner surface of the low stretch portion that contacts the foot has a greater friction against the foot than the inner surface of the main body portion that contacts the foot.

According to the above configuration, since the low expansion/contraction portion suppresses the movement of the foot, the shift of the area on the side of the hallux joint or the area on the side of the little toe joint can be suppressed more effectively by the low expansion/contraction portion.

In the sock according to the present invention, the low stretch portion may be provided around each of the area lateral to the hallux joint and the area lateral to the little toe joint.

According to the above configuration, since the sock toe portion of the sock can be prevented from shifting or falling off on both sides in the width direction of the foot, the sock toe portion can be reliably prevented from shifting or falling off.

In the sock according to the present invention, the low stretch portion may be a band.

According to the above structure, the low expansion part is in a belt shape, and the low expansion part functions as a stopper, so that a better anti-deviation effect can be obtained.

In the sock according to the present invention, the band-shaped low expansion/contraction portion is arranged so as to be sandwiched from the front and rear direction of the area lateral to the hallux joint or the area lateral to the little toe joint, and a distance between lower end portions of the two low expansion/contraction portions is not smaller than at least a width of the area lateral to the hallux joint or the area lateral to the little toe joint.

According to the above configuration, when the ankle joint is flexed (from the start of kicking to the end of kicking) about the metatarsophalangeal joint and the little metatarsophalangeal joint during walking, the movement of the metatarsophalangeal joint is not hindered by the expansion and contraction of the fabric, and therefore, the shifting and falling-off of the socks can be suppressed satisfactorily.

In addition, in the sock according to the present invention, the low stretch portion may include: a first band-shaped portion that suppresses expansion and contraction in the front-rear direction in the area lateral to the hallux joint or the area lateral to the little toe joint; and a second band-shaped portion that suppresses the vertical expansion of the region.

According to the above configuration, the first band-shaped portion suppresses the extension and contraction of the area on the side of the hallux joint or the area on the side of the little toe joint in the front-rear direction, and the second band-shaped portion suppresses the extension and contraction of the area in the up-down direction. This can suppress the downward and forward/backward displacement of the side area of the hallux joint or the side area of the little toe joint.

In the sock according to the present invention, the second band-like portion may be disposed so as to sandwich the hallux joint side region or the little toe joint side region from the front to the rear direction.

According to the above configuration, since the second band-like portions are arranged so as to be sandwiched from the front and rear direction, the movement of the area lateral to the hallux joint or the area lateral to the little toe joint with respect to the foot in the front and rear direction can be effectively suppressed.

In the sock according to the present invention, the low stretchable part may have a substantially コ -shaped configuration that opens toward a sole side of the foot.

According to the above configuration, the second band-like portion can be provided so as to sandwich the area lateral to the hallux joint or the area lateral to the little toe joint from the front-rear direction. This can effectively suppress the downward displacement of the area on the side of the hallux joint or the area on the side of the little toe joint. Further, by connecting or disposing the upper end portions of these second band-shaped portions to the first band-shaped portions, it is possible to suppress a shift of the area lateral to the hallux joint or the area lateral to the little toe joint with respect to the downward direction of the foot. Therefore, the shift of the area lateral to the hallux joint or the area lateral to the little toe joint in all directions other than the upper direction can be effectively suppressed.

In the sock according to the present invention, a lower end of the second band-like portion in a lower direction may be located below a center position in a vertical direction of the area lateral to the hallux joint or the area lateral to the little toe joint.

According to the above configuration, the downward deviation of the area lateral to the hallux joint or the area lateral to the little toe joint can be sufficiently suppressed.

In the sock according to the present invention, the length of the side of the first band-shaped part on the side of the thumb joint side region or the length of the side of the little toe joint side region is smaller than the width of the thumb joint side region or the little toe joint side region, and the second band-shaped part is longer than the first band-shaped part and arranged in a splayed shape so that the distance between the second band-shaped parts increases as the second band-shaped part approaches downward.

According to the above configuration, the splayed low expansion/contraction portion is expanded in accordance with the flexion about the metatarsophalangeal joint and the little metatarsophalangeal joint due to walking or exercise, and the cloth is stretched without obstructing the movement of the joint. Therefore, the sock can be prevented from shifting from the area lateral to the hallux joint or the area lateral to the little toe joint and from falling off without disturbing the wearing feeling.

In the sock according to the present invention, the first band-shaped portion and the second band-shaped portion may be formed in a series.

According to the above configuration, by forming the band-shaped portions in a series, local positional displacement between the band-shaped portions can be made less likely to occur.

In the sock according to the present invention, the main body portion may be made of a knitted fabric and may include a toe portion covering the toe, a sole portion covering a sole of the foot, side edge portions covering both sides of the foot, and a heel portion covering a heel portion of the foot.

According to the above configuration, since the sock fits the foot, the sock can be realized in which the shift and the falling of the toe portion can be effectively suppressed.

The sock according to the present invention may be a ankle sock in which the instep and ankle of the foot are exposed.

The invention can be well applied to the ankle socks and can inhibit the deviation and the falling of the toe parts of the socks.

In the sock according to the present invention, the footlet may have a shallow mouth shape in which a part of a crotch portion of toes of the foot is exposed.

The invention is particularly well applicable to the ankle socks with shallow mouth shapes, and can inhibit the deviation and the falling of the toe parts of the socks.

In addition, in the sock according to the present invention, the toe portion may have a shape gently inclined from the big toe to the little toe along the toe outline.

According to the above configuration, since the fit feeling of the toe portion of the sock can be improved, the shift and the falling-off of the toe portion of the sock can be suppressed more effectively.

In the sock according to the present invention, a slip-preventing portion may be provided on an inner surface of the heel portion of the sock.

According to the above configuration, the slip-preventing portion is provided on the inner surface of the heel portion, so that the displacement or the falling-off of the heel portion of the sock can be suppressed.

In the sock according to the present invention, the low stretch portion may be a resin coated on an inner surface of the main body portion.

According to the above configuration, the low stretch portion made of resin is in close contact with the skin, and the sock toe portion can be more favorably prevented from shifting or falling off.

In the sock according to the present invention, the main body may be formed with a plurality of toe receiving portions at a toe portion covering the toe.

According to the above configuration, for example, in the sock having the toe storage portion of the double toe or the toe storage portion of the five toes, since the toes are stored in the toe storage portion and the movement of the main body cloth is suppressed, the shift and the falling-off of the toe portion of the sock can be effectively suppressed.

[ notation ] to show

1 socks

2 main body part

10 low expansion part

21 sock bottom

22 toe part

23 side edge part

24 heel parts

11a, 11b second band-shaped portion

11c first band portion

F foot

Q1 big toe metatarsophalangeal joint

Q2 little toe metatarsophalangeal joint

P1 lateral area of the hallux joint

P2 little toe joint side area

x front-back direction

y in the up-down direction.