Foot cover

Abstract

To provide a foot cover capable of avoiding the disposal of the foot cover by putting on a toe part and a heel part in reverse when the toe part is broken.SOLUTION: A foot cover 100 is used for both right and left sides. A toe part A has a toe side reinforcing part 140 for reinforcing the toe part A. A toe side anti-slip part 130 is disposed on the periphery of an opening OP. When either right or left cover of the foot cover 100 is placed on a plane with the toe part A or a heel part C as the upper side, the upper and lower sides and right and left sides are substantially symmetrical to each other including the opening OP. The toe side reinforcing part 140 and the toe side anti-slip part 130 are vertical-symmetrically disposed as the heel side reinforcing part 140 and the heel side anti-slip part 130. Even when the toe side reinforcing part 140 and the toe side anti-slip part 130 are changed from the toe side to the heel side of the wearer, the range covering the instep is almost the same, the toe is reinforced by the heel side reinforcing part 140, and the foot cover 100 is prevented from slipping off the heel by the toe side anti-slip part 130.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a foot cover that, when worn, becomes hidden (or becomes difficult to see) inside a shoe (whether it is a pair of shoes, such as pumps, mainly for women, that have a wide opening at the instep (the opening), or shoes, such as shoes that do not have as wide an opening at the instep (the opening) as pumps), and in particular, to a foot cover that becomes hidden (or becomes difficult to see) inside a shoe even if the toe and back (which are the same as front and back, and toe and front refer to the toe side or the toe direction, and back refers to the heel side or the heel direction, respectively) of the foot cover are switched (including, but not limited to, if the toe side with a hole at the tip is switched to the heel side), and that prevents the foot cover from coming off or shifting out of place when walking or putting on or taking off pumps. The present invention also relates to a foot cover that, when worn with the toe side and heel side interchanged (when worn with the toe side interchanged with the heel side regardless of the presence of a hole at the tip), can prevent the foot cover from coming off or shifting out of position while walking or when putting on or taking off pumps, and can change the depth of fit by varying the coverage area of ​​the instep with the foot cover. [Background technology]

[0002] Wearing shoes such as pumps on bare feet has become a common fashion. In this case, if the pumps come into direct contact with the soles of the feet, the inside of the shoes becomes steamy due to sweat produced on the feet, causing discomfort.

[0003] Therefore, a thin foot cover has been proposed that covers the sole including the toes and heels and exposes the instep and ankle, and has a large opening so that the instep and ankle are not exposed from the pumps when worn. When wearing this foot cover and pumps, it looks like you are wearing pumps on your bare feet, and because the foot cover is between the sole and the pumps, it is possible to prevent the inside of the shoes from becoming stuffy due to sweat.

[0004] In this specification, such foot wear items are referred to as foot covers, but may also be referred to as sock covers, inner socks, nude socks, cover socks, etc.

[0005] Such foot covers generally have an anti-slip structure to prevent the foot covers from slipping or coming off when worn. Conventional anti-slip structures can be broadly classified into (1) attachment of resins such as silicone or rubber, (2) attachment of fabric cut into tape, and (3) knitting of elastic parts or insertion of rubber. However, although anti-slip structures using resins such as silicone have a high anti-slip effect, if they are installed around the entire circumference of the opening, they may cause rashes due to the ingredients, inflammation due to close contact with the skin and dynamic pressure, rough skin due to sweat, etc. On the other hand, anti-slip structures using fabric cut into tape or insertion of elastic threads are less likely to cause rough skin, but their anti-slip effect is not as high as that of resins such as silicone. In addition, in any case, if an anti-slip structure is installed around the entire circumference of the opening, it may tighten the foot too much, which may impair the wearing comfort.

[0006] In view of such problems, JP 2021-155889 A (Patent Document 1) discloses a foot cover that is gentle on the skin and has an effective anti-slip function. The foot cover disclosed in Patent Document 1 includes a main body that covers at least a part of the sole, toe, and heel of the foot, and an anti-slip part is arranged on the inside of the peripheral part of the opening formed on the main body, and the anti-slip part includes a first anti-slip part that is arranged on the toe side of the peripheral part and has lower elasticity than the main body part, and a second anti-slip part that is separated from the first anti-slip part and arranged on the heel side of the peripheral part, and has greater friction with the skin than the first anti-slip part.

[0007] According to the foot cover disclosed in Patent Document 1, the first and second anti-slip parts are arranged separately on the periphery, so that excessive tightening that occurs when anti-slip parts with high friction are arranged around the entire circumference of the opening can be prevented, which causes a large burden on the skin, especially on the toe side where the skin is weak. In the pad cover, a first anti-slip part (nylon knit fabric, etc.) with low elasticity that puts less strain on the skin is placed on the toe side where the skin is relatively weak (thin), and a second anti-slip part (strip-shaped resin such as silicone (described as silicon in Patent Document 1)) that has greater friction with the skin than the first anti-slip part is placed separately from the first anti-slip part on the heel side where the skin is relatively strong (thick). This reduces the strain on the toe side where the skin is weak, while effectively preventing the pad from slipping or coming off. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] JP 2021-155889 A Summary of the Invention [Problem to be solved by the invention]

[0009] Incidentally, as a material for such foot covers, a thin elastic knitted fabric such as a fabric for pantyhose (a knitted fabric containing polyurethane thread and nylon thread) is often used, although it is only one example. Patent Document 1 focuses on the toe side, where the skin is relatively weak (thin), and the heel side, where the skin is relatively strong (thick). However, when comparing the toe side and the heel side of the human foot (from the ankle to the toes), the toe side has toes and toenails that do not exist on the heel side. Furthermore, it is a popular summer trend to grow toenails and color or decorate them to improve aesthetics. Due to the presence of such toenails (even without growing toenails, the toes are thin and pointed compared to the heels), the toe part of the foot cover inevitably has the disadvantage of becoming thin and easily torn by repeatedly wearing or washing the thin foot cover. For example, since most foot covers are for both the left and right foot (without distinguishing between left and right), if the toe side of the foot cover worn on the right foot is torn (or has a hole), it can be discarded and an unused foot cover of the same part number can be worn on the right foot, but the torn or thinned toe side (hole or about to be holed) foot cover must be discarded, or the unused one will be left over. To avoid this, if a torn (hole-filled) foot cover is worn backwards (switching the toe side and heel side), the torn hole will not be visible when the heel side is worn, and the heel side is thicker than the toe and rounder rather than sharp, so the hole is less likely to get larger. For this reason, using a torn (hole-filled) toe side foot cover instead of discarding it will lead to not discarding foot covers containing synthetic fibers, which are mainly manufactured from synthetic resins made from petroleum, and is also beneficial to the SDGs, an international agreement described below. Furthermore, it is clear that having to discard both foot covers if one of them is torn (has a hole) on the toe side is even less desirable in terms of achieving the SDGs.

[0010] The 2030 Agenda for Sustainable Development (2030 Agenda), adopted by the United Nations in September 2015, is a groundbreaking agreement in which the international community as a whole recognizes the various problems caused by human activities that allow us to enjoy materially rich and convenient lives as urgent issues and resolves to work together to resolve them. With the adoption of this agreement, the idea of ​​"sustainable development" is becoming more and more widespread as a common ideal in the international community. The Sustainable Development Goals (SDGs), which form the core of the 2030 Agenda, set 17 goals, of which Goal 14 (Oceans) is "Conserve and sustainably use marine resources for sustainable development." The background to the setting of Goal 14 (Oceans) is the worsening problem of marine pollution around the world due to inappropriate waste disposal, etc. Marine plastic litter, one of the causes of marine pollution, includes fishing gear, food and drink containers and packaging, cigarette lighters and filters, etc., and it is believed that approximately one-third of plastic litter generated in coastal areas is improperly disposed of and flows into the ocean, becoming marine plastic litter. It has been reaffirmed that action should be taken against marine litter, while recognizing that this will contribute to the prevention and reduction of marine litter originating from land, especially microplastics (marine plastic litter is broken down into microplastics of 5 mm or less by the force of waves and the effects of ultraviolet rays). Even if plastic litter does not become marine litter, it is important to consider the following points: From the perspective of the 2030 Agenda, it is also undesirable that garbage emits greenhouse gases when burned (incinerated) and that the raw material for plastic is petroleum resources, which have limited extraction capacity. For these reasons, the immediate disposal of foot covers with torn (holes) toes is undesirable for the SDGs because they contain synthetic fibers made mainly from synthetic resins made from petroleum.

[0011] However, the foot cover disclosed in Patent Document 1 has a first anti-slip part (such as nylon knit fabric) with low elasticity that puts less strain on the skin on the toe side, where the skin is relatively weak (thin), and a second anti-slip part (strip-shaped resin such as silicone) that has greater friction with the skin than the first anti-slip part and is separated from the first anti-slip part on the heel side, where the skin is relatively strong (thick). This reduces the strain on the toe side, where the skin is weak, while effectively preventing the foot cover from slipping off or coming off. Therefore, it is impossible to wear a foot cover with a torn (hole) on the toe side by reversing the front and back (toe / back, toe / heel) (switching the toe side and heel side), because this would not reduce the strain on the toe side, where the skin is weak, and would not effectively prevent the foot cover from slipping off or coming off. Therefore, the foot cover disclosed in Patent Document 1 with a torn (hole) on the toe side must be discarded.

[0012] In light of the problems with the foot covers disclosed in Patent Document 1, the applicant of the present application has further undertaken intensive research in order to contribute to the SDGs, an international agreement, as a manufacturer and distributor of foot covers containing synthetic fibers made mainly from synthetic resins derived from petroleum.

[0013] The present invention was developed in consideration of the prior art, and its purpose is to provide a foot cover that can prevent the foot cover from coming off or shifting out of position when walking or putting on or taking off pumps, even if the toe side and the heel side of the foot cover are switched (but not limited to, even if the toe side with a hole at the tip is replaced with the heel side). Another purpose of the present invention is to provide a foot cover that can prevent the foot cover from coming off or shifting out of position when walking or putting on or taking off pumps, even if the toe side and the heel side of the foot cover are switched (if the toe side is replaced with the heel side regardless of the presence of a hole at the tip), and can change the depth of the foot cover by changing the coverage area of ​​the instep. [Means for solving the problem]

[0014] In order to achieve the above object, the foot cover according to the present invention employs the following technical measures.

[0015] That is, a foot cover according to one aspect of the present invention is a foot cover that covers the sole of the foot including the toes and heel and exposes the instep and ankle, and is formed of a sole portion, a side portion, a heel portion, and a toe portion that covers the toes, and an opening for putting the foot in and out is provided on the upper and lower opposite sides of the sole portion, and at least one first stretchable knitted fabric that forms the portion other than the sole portion and a second stretchable knitted fabric that is a stretchable knitted fabric different from the first stretchable knitted fabric and forms the sole portion are joined to form the foot cover into a three-dimensional shape, and the toe portion is provided with a toe-side reinforcing portion that reinforces the toe portion, and a toe-side anti-slip portion that is provided in a part of the toe side of the opening and that follows the periphery of the opening, and the toe portion or the heel portion is turned upside down and the toe portion is turned upside down and the opening is turned upside down. When either the left or right foot cover is placed on a flat surface, the foot cover is approximately symmetrical left-right and top-bottom, including the opening, and the toe side reinforcement part and the toe side anti-slip part are also provided on the heel side, which is up-down opposite to the toe side, as a heel side reinforcement part and a heel side anti-slip part, the toe side reinforcement part and the heel side reinforcement part are approximately symmetrical left-right and top-bottom in shape and position and are made of the same material, the toe side anti-slip part and the heel side anti-slip part are approximately symmetrical left-right and top-bottom in shape and position and are made of the same material, and whether the toe side reinforcement part and the toe side anti-slip part are worn so that they face the wearer's toes or the wearer's heel, the foot cover covers approximately the same area of ​​the instep and can be used both front and back (front to back) with approximately the same wearing depth.

[0016] A foot cover according to another aspect of the present invention is a foot cover that covers the sole of the foot including the toes and heels and exposes the instep and ankle, and is formed of a sole part, a side part, a heel part, and a toe part that covers the toes, and has an opening for inserting and removing the foot, which is disposed above the sole part. At least one first stretchable knitted fabric is provided on the lower opposite side and forms parts other than the sole part, and a second stretchable knitted fabric, which is a stretchable knitted fabric different from the first stretchable knitted fabric and forms the sole part, is joined to form the foot cover into a three-dimensional shape, the toe part is provided with a reinforcing part for reinforcing the toe part, and a non-slip part is provided on a part of the toe side of the opening and has a shape that follows the periphery of the opening, and when either the left or right side of the foot cover is placed on a flat surface with the toe part or the heel part facing up, the foot cover is approximately symmetrical left and right and up and down excluding the opening, and the length from the top end of the foot cover to the top end of the opening and the length from the bottom end of the foot cover to the bottom end of the opening are different. The foot cover is characterized in that, including the opening, it is approximately symmetrical left to right and asymmetrical top to bottom, and the toe side reinforcement part and the toe side anti-slip part are also provided on the heel side, which is up and down opposite to the toe side, as a heel side reinforcement part and a heel side anti-slip part, the toe side reinforcement part and the heel side reinforcement part are approximately symmetrical left to right and up and down in shape and position and are made of the same material, the toe side anti-slip part and the heel side anti-slip part are approximately symmetrical up and down in shape and are made of the same material, the foot cover covers a different range of the instep when worn with the toe side reinforcement part and the toe side anti-slip part facing the wearer's toes and when worn with the toe side anti-slip part facing the wearer's heel, and the foot cover can be used both front and back (front to back) to change the wearing depth.

[0017] Preferably, the opening is provided with an anti-slip tape shaped to conform to the periphery of the opening, and the tape-shaped anti-slip portion is provided on the skin side of the anti-slip tape. Effect of the Invention

[0018] According to the foot cover of the present invention, even if the toe side and the heel side of the foot cover are switched and worn (even if the toe side with a hole at the tip is replaced with the heel side and worn, but this is not limited to this), it is possible to provide a foot cover that can prevent the foot cover from coming off or shifting out of position when walking or putting on or taking off pumps. Also, according to the foot cover of the present invention, even if the toe side and the heel side of the foot cover are switched and worn (even if the toe side is replaced with the heel side regardless of the presence of a hole at the tip), it is possible to provide a foot cover that can prevent the foot cover from coming off or shifting out of position when walking or putting on or taking off pumps, and that can change the coverage range of the instep by changing the depth of wear. [Brief description of the drawings]

[0019] [Figure 1] FIG. 1 is an overall perspective view of a foot cover 100 according to a first embodiment of the present invention, as viewed obliquely from above when being worn. [Diagram 2] 2A and 2B are a top view and a bottom view, respectively, showing a hypothetical state in which the foot cover 100 shown in FIG. 1 is worn. [Diagram 3] 2 is a development view (plan view of two patterns) of the foot cover 100 shown in FIG. 1. FIG. [Figure 4] 1A and 1B are overall perspective views of a foot cover 200 according to a second embodiment of the present invention, seen from diagonally above when worn, in which (A) the toes are worn shallowly and (B) the toes are worn deep. [Diagram 5] 5A and 5B are top and bottom views showing a hypothetical wearing state (with the toes in low-rise) of the foot cover 200 shown in FIG. 4. [Figure 6] 5A and 5B are top and bottom views showing a hypothetical wearing state (with the toes deep in the foot cover 200 shown in FIG. 4) of the foot cover 200. FIG. [Figure 7] 5 is a development view (plan view of two patterns) of the foot cover 200 shown in FIG. 4. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] In the following, foot covers according to the embodiments of the present invention (foot cover 100 according to a first embodiment and foot cover 200 according to a second embodiment) are shown in the following overall perspective view from obliquely above when the foot cover 100 is worn; top view from FIG. 2(A) and bottom view from FIG. 2(B) showing a hypothetical worn state of the foot cover 100; FIG. 3 showing a development view (plan view of two patterns) of the foot cover 100; and overall perspective views from obliquely above when the foot cover 200 is worn, in which FIG. 4(A) shows a state in which the toes are worn shallowly and FIG. 4(B) shows a state in which the toes are worn deep; and hypothetical state in which the foot cover 200 is worn shallowly. The description will be given in detail with reference to Fig. 5(A) which is a top view and Fig. 5(B) which is a bottom view showing a virtual wearing state, Fig. 6(A) which is a top view and Fig. 6(B) which is a bottom view showing a virtual wearing state of the foot cover 200 with the toes deep in the sole, and Fig. 7 which shows a development view (plan view of two patterns) of the foot cover 200. Note that Fig. 6 is a view obtained by turning Fig. 5 upside down.

[0021] Here, the difference between the foot cover 100 and the foot cover 200 is that the first stretchable knitted fabric 104 of the foot cover 100 is replaced with a first stretchable knitted fabric 204 in the foot cover 200. In light of this difference, the following will first describe matters common to the foot cover 100 according to the first embodiment and the foot cover 200 according to the second embodiment. Note that the same reference numerals are used to designate the same structures in the foot cover 100 according to the first embodiment and the foot cover 200 according to the second embodiment. <Common matters between the two embodiments> Generally, there are various foot cover structures, and the present invention is not limited to a specific structure. Basically, any foot cover structure, the type of fabric constituting the foot cover, the fabric pattern, and the fabric joining method are acceptable as long as they have the characteristics described below. Therefore, the foot cover structure itself and the joining method described below are merely examples. In the embodiments, foot covers without reference numbers refer to the foot cover 100 and the foot cover 200, and the description of the foot cover without reference numbers in the embodiments is common to the foot cover 100 and the foot cover 200.

[0022] The preferred fabrics for forming the foot cover include bare jersey (bare jersey: a knit fabric made by knitting bare yarn (bare yarn) polyurethane yarn into plain jersey knit (flat knit)), tricot (a warp knit fabric knitted with a tricot machine, which is a type of warp knitting machine), and fabric for pantyhose (knit fabric containing polyurethane yarn and nylon yarn). Among these, bare jersey is particularly preferred for foot covers because it (1) has excellent elasticity, (2) has good shape stability and is less likely to change shape after washing, (3) is soft to the touch and fits well, (4) is less likely to wrinkle or crease, (5) has a porous structure and is breathable, and (6) has good texture and moisture absorption properties when it contains cotton. In the present embodiment, the term "fabric" simply refers to a fabric including a knit fabric.

[0023] As shown in Figures 1 and 4, foot cover 100 and foot cover 200 have in common (structural matters) that they are foot covers that cover the sole of the foot, including the toes and heels, and expose the instep and ankle, and are formed of a sole portion D, a side portion B, a heel portion C, and a toe portion A that covers the toes, with an opening OP for inserting and removing the foot provided on the upper and lower opposite sides of sole portion D, and at least one first stretchable knitted fabric (first stretchable knitted fabric 104 in foot cover 100 and first stretchable knitted fabric 204 in foot cover 200, the same below) that forms parts other than sole portion D is joined to a second stretchable knitted fabric 102 that is a stretchable knitted fabric different from the first stretchable knitted fabric 104 and forms sole portion D, thereby forming foot cover 100 and foot cover 200 into a three-dimensional shape. In addition, toe portion A is the part (region) of the foot cover that covers the toes of the human foot wearing the foot cover, and heel portion C is the part (region) of the foot cover that covers the heel of the human foot. Since the foot cover of the present invention can be worn both front and back (front and back) (meaning that the foot cover can be worn with the toe side and the heel side reversed, i.e., the foot cover can be worn with the front and back (front and back) reversed and still exhibit the same function as a foot cover, and this parentheses will be omitted below), toe portion A and heel portion C can be formed by upper portion 104U or lower portion 104D in Figure 3, or by upper portion 204U or lower portion 204D in Figure 7. It should be noted that in the foot cover 100, whether the toe portion A is formed in the upper portion 104U shown in FIG. 3 or in the lower portion 104D, the toe depth (sometimes referred to as the toe depth) is the same (almost the same); however, in the foot cover 200, the toe depth is not the same (almost the same) when the toe portion A is formed in the upper portion 204U shown in FIG. 7 and when the toe portion A is formed in the lower portion 204D. When the lower part 204D is formed as the toe part A (when the foot cover is worn with the covering length L(1) side shown in Figs. 4 to 6 facing the wearer's toes), the toe is shallowly worn, and when the lower part 204D is formed as the toe part A (when the foot cover is worn with the covering length L(2) side shown in Figs. 4 to 6 facing the wearer's toes), the toe is deep worn. Note that deep wearing of the toe means that the foot cover covers a wider area of ​​the instep (the covering length is longer) compared to shallow wearing of the toe (covering length L(1) in Fig. 1 = covering length L(1) in Fig. 4(A) < covering length L(2) in Fig. 4(B)).

[0024] These foot covers 100 and 200 are characterized in that when worn, they are hidden inside the shoe (whether it is a pump or the like for women that has a wide opening at the top of the shoe, or a shoe or the like that does not have a wide opening at the top of the shoe, as is the case for pumps) and are not visible (including the case where they are difficult to see). In addition, although not limited thereto, these foot covers 100 and 200 are suitable for both the left and right foot, and are therefore preferable in that they are suitable for both the left and right foot, so that there is no risk of mistakenly putting them on, and there is no need to distinguish between the left and right foot covers.

[0025] Here, Fig. 1 and Fig. 4 show the state in which the foot cover 100 and the foot cover 200 are actually worn on the foot F of a wearer. Fig. 2, Fig. 5 and Fig. 6 show the virtual wearing state of the foot cover 100 (not the actual wearing state when actually worn) in plan views (top view, bottom view). The reason for illustrating the virtual wearing state is to easily understand that, for example, the left or right foot cover is symmetrical from left to right and up to down in Fig. 2(A), Fig. 2(B), Fig. 5(B) and Fig. 6(B) and is symmetrical from left to right and up to down in Fig. 5(A) and Fig. 6(A), that is, to easily understand the points of symmetry from left to right and up to down and the points of symmetry from up to down in these three figures, Fig. 2, Fig. 5 and Fig. 6. These foot covers 100 and 200 are made of elastic knitted fabric, and if they are not illustrated virtually as shown in the manner assumed when they are worn (if the foot cover alone is simply placed on a flat surface), the elastic knitted fabric will be in a shrunken state, making it difficult to understand the characteristic shape of the foot cover. Therefore, these three figures are illustrated in virtual plan views assuming the foot cover is worn.

[0026] In particular, in Fig. 2(A), Fig. 5(A) and Fig. 6(A) showing a virtual wearing state as a plan view (top view), in order to easily understand the features of these foot covers 100 and foot covers 200 (when one of the foot covers for both the left and right is placed on a plane with the toe side or heel side facing up, the external shape of the foot cover is vertically symmetrical if the opening OP is not included), these foot covers 100 and 200 are drawn as being vertically symmetrical as a virtual wearing state different from the state in which they are actually worn on the foot F. That is, in the (non-virtual) state in which the foot cover is actually worn on the foot F, the foot F rises up approximately vertically from the heel to the ankle, so when these foot covers 100 and 200 are worn, the heel part C rises up approximately vertically along the heel and ankle, so that the external shape of the foot cover itself not including the opening OP, the opening OP, the anti-slip part 130 and the reinforcing part 140 do not look vertically symmetrical, these figures are shown as being in a virtual wearing state.

[0027] 1 corresponds to the covering length L(1) from the upper end of the foot cover 100 to the upper end of the opening OP shown in FIG. 2(A). However, since FIG. 1 is a perspective view showing a state in which the foot cover is worn and FIG. 2 is a plan view (top view, bottom view) showing a hypothetical state in which the foot cover is worn, strictly speaking, the covering length L(1) in FIG. 1 does not necessarily completely match the covering length L(1) in FIG. 2(A). Similarly, the covering length L(1) in the toe portion A of the foot cover 200 shown in FIG. 4(A) corresponds to the covering length L(1) in FIG. 5(A). ), and the covering length L(2) at the toe portion A of the foot cover 200 in FIG. 4(B) corresponds to the covering length L(2) from the bottom end of the foot cover 200 to the bottom end of the opening OP in FIG. 5(A). However, since FIG. 4 is a perspective view showing the worn state and FIG. 5 is a plan view (top view, bottom view) showing a hypothetical worn state, strictly speaking the covering length L(2) in FIG. 4 does not necessarily completely match the length L(2) in FIG. 5(A).

[0028] Furthermore, the covering height H(1) at the heel portion C of the foot cover 100 shown in FIG. 1 and the foot cover 200 shown in FIG. 4(B) corresponds to the covering length L(1) from the lower end of the foot cover 100 shown in FIG. 2(A) and the foot cover 200 shown in FIG. 6(A) to the lower end of the opening OP, and the covering height H(2) at the heel portion C of the foot cover 200 shown in FIG. 4(A) corresponds to the covering length L(2) from the lower end of the foot cover 200 to the lower end of the opening OP shown in FIG. 5(A). However, since FIG. 4 is a perspective view showing the worn state and FIG. 5 is a plan view (top view, bottom view) showing a hypothetical worn state, strictly speaking the covering height H(2) in FIG. 4 does not necessarily completely match the covering length L(2) in FIG. 5(A).

[0029] Furthermore, since Figs. 3 and 6 are development views of the foot cover and show so-called patterns, LL(1) shown in Figs. 3 and 7 and LL(2) shown in Fig. 7 correspond to the covering length L(1) and covering length L(2) shown in other figures, respectively, but do not match each other because the dimensions change before and after sewing as the shape changes from a flat shape to a three-dimensional shape (L(1) ≠ LL(1), L(2) ≠ LL(2), however, L(1) <L(2)かつLL(1)<LL(2))。

[0030] Furthermore, as mentioned above, since the foot covers 100 and 200 are made of elastic knitted fabric, the fabric (knitted fabric) is soft and stretchable, and therefore it is not appropriate to limit left-right symmetry and top-bottom symmetry to mathematical perfect symmetry. For a person skilled in the art with ordinary knowledge in the technical field to which such foot covers belong, it is common technical knowledge that when the shape of the foot cover is mathematically limited, adding "approximately" or "etc." makes it more realistic, and it is also common technical knowledge that the invention can be fully understood even if "approximately" or "etc." is added, and adding "approximately" or "etc." does not result in a lack of clarity. <First embodiment> A foot cover 100 according to a first embodiment of the present invention will be described in detail below with reference to Figures 1 to 3. In the second embodiment, the same matters as those in the first embodiment will not be repeatedly described for the foot cover 200 according to the second embodiment, so that the first embodiment below includes the portions describing the second embodiment.

[0031] As shown in Figs. 1 to 3, the foot cover 100 is characterized in that the toe portion A is provided with a reinforcing portion 140 for reinforcing the toe portion A, and the anti-slip portion 130 is provided along the periphery of the opening OP provided on a part of the toe side of the opening OP. The anti-slip portion 130 is illustrated as a narrow tape made of silicone resin in these figures as an example, but is not limited to such a material, shape, and position. For example, it may be a shape other than narrow (such as a strip shape) or silicone resin may be attached in a dot shape. Also, the reinforcing portion 140 is illustrated as an elastic knit fabric having a surface that covers (wraps) the toes in the front and back directions (rather than wrapping them from the left and right directions) and that directly touches the skin of the foot, but is not limited to such a material, shape, and position.

[0032] As shown in Fig. 2, when either the left or right foot cover 100 is placed on a flat surface with the toe A or heel C facing up, the foot cover 100 is substantially symmetrical (i.e., point symmetrical) from top to bottom including the opening OP (position) (particularly note that the length L(1) from the top of the foot cover 100 to the top of the opening OP is (substantially) the same as the length L(1) from the bottom of the foot cover 100 to the bottom of the opening OP), and the toe side reinforcement part 140 and the toe side anti-slip part 130 are also provided as the heel side reinforcement part 140 and the heel side anti-slip part 130 on the heel side (the lower part 104D side shown in Fig. 3), which is the up-down opposite side to the toe side (the upper part 104U side shown in Fig. 3). As shown in Figs. 2 and 3, the toe side reinforcement part 140 and the heel side reinforcement part 140 are substantially symmetrical from top to bottom in shape and position, and are made of the same material. Furthermore, the toe-side anti-slip portion 130 and the heel-side anti-slip portion 130 are generally symmetrical in shape and position from left to right to top to bottom, and are made of the same material.

[0033] The foot cover 100 having such a configuration is worn by the wearer so that the reinforcement portion 140 on the toe side (the upper portion 104U side shown in FIG. 3) and the anti-slip portion 130 on the toe side are directed toward the wearer's toes. Whether the foot cover 100 is worn on the foot or worn by the wearer so that the wearer's heel is in the direction of the foot cover 100, the coverage of the instep by the foot cover 100 is (almost) the same (the depth of the foot cover is (almost) the same), and the foot cover 100 can be used for both front and back. As shown in FIG. 2(B) and FIG. 3(A), the sole D of the foot cover 100 and the second stretchable knitted fabric 102 forming the sole D are symmetrical in the vertical and horizontal directions as described above, and the both sides of the arch extending from the toe side to the heel side are formed in a circular arc shape (peanut shape) that is gently concave in the direction of approaching each other. This shape allows the sole D to fit the sole of the foot F sufficiently to prevent slipping and coming off, and allows the foot cover 100 to be used for both left and right, and for both front and back (front and back). The sole D of the foot cover 100 and the second stretchable knitted fabric 102 forming the sole D are not limited to such shapes, and may be other shapes as long as they are symmetrical in the vertical and horizontal directions according to the shape of the foot F.

[0034] Foot cover 100 with these characteristics can be worn with the toe side and the heel side reversed (including, but not limited to, wearing the toe side with a hole at the tip replaced with the heel side), and can be hidden inside the shoe and not seen (including cases where it becomes difficult to see), and can prevent the foot cover from coming off or shifting out of place when walking or putting on or taking off pumps.

[0035] Thin foot covers have the disadvantage that they become thin and easily torn when worn or washed repeatedly, and since most foot covers are for both the left and right foot (without distinguishing between left and right foot), if the toe side of the foot cover worn on the right foot is torn (holes appear), it can be discarded and an unused foot cover of the same part number can be worn on the right foot, but the torn (hole-formed) foot cover on the toe side must be discarded or the unused one will be left over. However, this foot cover 100 can be worn by reversing the front and back (toe back, toe / heel) (switching the toe side and heel side) of one or both left and right foot covers 100 with torn or thin toe sides (holes or holes appearing). The above-mentioned configuration allows it to exhibit the following effects. As described above, when the foot cover is placed on a flat surface with the toe A or heel C facing upward, the foot cover 100 is substantially symmetrical (i.e., point symmetrical) from top to bottom including the opening OP, and the toe side reinforcement part 140 and the toe side anti-slip part 130 are also provided on the heel side, which is the up-down opposite side to the toe side, as the heel side reinforcement part 140 and the heel side anti-slip part 130. As shown in Figs. 2 and 3, the toe side reinforcement part 140 and the heel side reinforcement part 140 are substantially symmetrical from top to bottom in shape and position and are made of the same material. Furthermore, the toe side anti-slip part 130 and the heel side anti-slip part 130 are substantially symmetrical from top to bottom in shape and position and are made of the same material. Therefore, even if the toe side and the heel side are switched (including, but not limited to, switching the toe side with a hole at the tip and wearing it with the heel side), the foot cover will be hidden inside the shoe and will not be visible (including cases where it will be difficult to see), and the foot cover will not come off or shift out of place when walking or putting on or taking off pumps.That is, even if the toe side and the heel side are switched and put on, the reinforcing part 140 formed of an elastic knitted fabric that wraps the toe in the vertical direction, for example, can continue to reinforce the toe part A, and the anti-slip part 130 formed of a narrow tape made of silicone resin, for example, can continue to suppress the foot cover 100 from slipping off from the heel at a position where the anti-slip effect on the heel can be most expressed (for example, a height position near the subtalar joint) (at this time, a hole that was made when using it as the toe does not affect the suppression of slipping of the foot cover 100 by the anti-slip part 130). In particular, in the foot cover 100, the anti-slip part 130 is present on both the toe part A side and the heel part C side of the opening OP, which is shaped along the periphery of the opening OP (not the entire circumference of the opening OP), and therefore the anti-slip part 130 is not provided on the entire circumference of the opening OP, so it is not too tight and is less likely to slip off and come off than a foot cover that has the anti-slip part on only one side. As a result, foot covers containing synthetic fibers, which are mainly made from synthetic resins derived from petroleum, will not be disposed of, which will also be beneficial to the SDGs, an international agreement.

[0036] In addition, a non-slip tape 120 (here, a stretchable narrow knitted fabric, but other materials and shapes may be used) is provided on the entire periphery (skin side) of the opening OP along the periphery of the opening OP. It is also preferable to provide a tape-like anti-slip portion 130 on the skin side of the anti-slip tape 120. If such an anti-slip tape 120 is provided on the entire periphery (skin side) of the opening OP, the opening OP can be easily opened wide when wearing the foot cover 100 (especially when the material of the anti-slip tape 120 is a stretchable narrow knitted fabric), making it easy to wear the foot cover 100, and after wearing the foot cover 100, the foot cover 100 is less likely to slip off the foot F. In addition, by adopting a material other than silicone resin as the material of the anti-slip tape 120 provided on the entire periphery of the opening OP, the impact on the skin of the foot can be reduced. Note that the anti-slip tape 120 may be provided on the shoe side (outside) rather than on the skin side (inside) of the entire periphery of the opening OP so that the anti-slip tape 120 does not directly contact the skin of the foot.

[0037] Although the first stretch knitted fabric 104 and the second stretch knitted fabric 102 are sewn together at the bottom seam 110, it is also preferable to butt together the fabric edge of the first stretch knitted fabric 104 and the fabric edge of the second stretch knitted fabric 102 and join them with an adhesive tape to make a seamless foot cover. Here, joining other than sewing (here, adhesion) includes those by thermocompression, heat welding, heat fusion, etc., and typically an adhesive tape with a heat fusion adhesive applied to one side (for example, a heel adhesive tape) is used.

[0038] The foot cover 100 is formed into a three-dimensional shape by joining a first stretchable knitted fabric 104 forming the side portion B, heel portion C, and toe portion A with a second stretchable knitted fabric 102 forming the sole portion D. It is also preferable that the first stretchable knitted fabric 104 and the second stretchable knitted fabric 102 are made of fabrics that do not require edge processing and do not unravel (so-called raw cut fabrics or free cut fabrics).

[0039] As shown in the development view of Fig. 3 (substantially the same as the paper pattern), the toe portion A, side portion B, and heel portion C of this foot cover 100 (i.e., the entirety of the foot cover 100 other than the sole portion D) are made of a first stretchable knitted fabric 104, which is a single piece of fabric with a predetermined peripheral shape and an opening OP, and the sole portion D is made of a second stretchable knitted fabric 102, which is a single piece of fabric with a predetermined peripheral shape (generally a shape roughly equivalent to the shape of the sole of the foot). That is, the entirety of the foot cover 100 other than the sole portion D is made of the first stretchable knitted fabric 104, and the sole portion D is made of the second stretchable knitted fabric 102. The number of pieces of fabric may be three (or more) instead of two.

[0040] Then, as shown by the two arrows in Fig. 3, the two stretchable knitted fabrics are brought close to each other and sewn together at the bottom seam 110 to give the foot cover 100 a three-dimensional shape. Note that the small triangular protrusions provided in four places on each of the two patterns in Fig. 3 are merely marks for joining (sewing, bonding).

[0041] Furthermore, it is also preferable to provide a sole slip prevention member (not shown) made of a thin sheet of silicone resin or the like on the side of the sole D opposite to the side that the foot F comes into contact with (the side that comes into contact with the inner sole of the pumps when the pumps are worn). This enhances the adhesion to the inner sole of the pumps and prevents the foot cover 100 from shifting out of position inside the pumps. Note that this sole slip prevention member is not an essential component of the foot cover according to the present invention.

[0042] In this foot cover 100, the first elastic knitted fabric 104 forming the part other than the sole D, the second elastic knitted fabric 102 forming the sole D, the elastic knitted fabric forming the reinforcement part 140, and the elastic narrow knitted fabric forming the anti-slip tape 120 may be made of the same fabric. That is, except for the sewing thread forming the anti-slip part 130 and the bottom seam 110 (for example, a narrow tape made of silicone resin) (or an adhesive tape for making the foot cover 100 seamless), the entire foot cover 100 may be made of the same elastic knitted fabric. Here, in this foot cover 100, the elastic narrow knitted fabric forming the anti-slip tape 120 is bonded to the periphery of the opening OP of the first elastic knitted fabric 104 by being heated by a heat press device, and the adhesive applied to the elastic narrow knitted fabric melts.

[0043] In the foot cover 100, the first stretchable knitted fabric 104 that forms the part other than the sole D that forms the foot cover 100, the second stretchable knitted fabric 102 that forms the sole D, the stretchable knitted fabric that forms the reinforcing part 140, and the stretchable narrow knitted fabric that forms the anti-slip tape 120 are The base and backing layers do not all have to be made of the same fabric as described above, and at least one of them may be made of a different knit fabric.

[0044] As described above, the foot cover 100 of this embodiment can provide a foot cover that can prevent the foot cover from coming off or shifting out of position when walking or putting on or taking off pumps, even if the toe side and heel side of the foot cover are switched and worn (although this is not limited to the above, the toe side with the hole at the tip can be worn as the heel side). <Second embodiment> A foot cover 200 according to a second embodiment of the present invention will be described in detail below with reference to Figs. 4 to 7. The difference between the foot cover 100 and the foot cover 200 is that the first stretchable knitted fabric 104 of the foot cover 100 is replaced with a first stretchable knitted fabric 204 in the foot cover 200. The foot cover 200 will be described with a focus on this difference, but since the rest of the foot cover 200 is the same as the first embodiment, the parts that overlap with the above description will not be described again in this second embodiment.

[0045] 5 and 6, when either the left or right foot cover 200 for both sides is placed on a flat surface with the toe A or heel C facing up, the foot cover 200 is approximately symmetrical vertically and horizontally if the opening OP (position) is not included, and is approximately symmetrical horizontally and asymmetrical vertically if the opening OP is included because the length L(1) from the top end of the foot cover to the top end of the opening OP and the length L(2) from the bottom end of the foot cover to the bottom end of the opening OP are different, and the toe side reinforcement part 140 and the toe side anti-slip part 130 are also provided as the heel side reinforcement part 140 and the heel side anti-slip part 130 on the heel side (the lower part 204D side shown in FIG. 3) which is the up-down opposite side to the toe side (the upper part 204U side shown in FIG. 7). As shown in FIG. 5 to FIG. 7, the toe side reinforcement part 140 and the heel side reinforcement part 140 are approximately symmetrical vertically and horizontally in shape and position, and are made of the same material. Furthermore, the toe-side anti-slip portion 130 and the heel-side anti-slip portion 130 are substantially symmetrical in shape from top to bottom and are made of the same material. That is, the foot cover 200 according to this embodiment is different from the foot cover 100 in that, since L(1)≠L(2) as shown in Figures 4 to 7, the foot cover 200 is not substantially symmetrical from top to bottom when including the opening OP (position), and even if L(1)≠L(2), the shape and position of the reinforcing portion 140 are substantially symmetrical from left to right to top to bottom, but since L(1)≠L(2), the position of the anti-slip portion 130 is not substantially symmetrical from top to bottom.

[0046] Foot cover 200 configured in this manner can be worn both front and back, allowing the wearer to change the coverage area of ​​the instep depending on whether the foot cover is worn by the wearer so that toe side reinforcement section 140 and toe side anti-slip section 130 are toward the wearer's toes or toward the wearer's heel, thereby allowing the wearer to change the depth of the fit.

[0047] Foot cover 200 with these characteristics can be worn with the toe side reversed and the heel side reversed (including, but not limited to, wearing the toe side reversed and the heel side reversed regardless of the presence of a hole at the tip), and can be hidden inside the shoe and not seen (including cases where it is difficult to see), and can prevent the foot cover from coming off or shifting out of place when walking or putting on or taking off pumps.

[0048] As with the foot cover 100 for both left and right feet according to the first embodiment described above, when one or both of the foot covers 200 for both left and right feet have a torn or thinned toe side (holes or holes nearing them), and the front and back (toe / heel) are reversed (the toe side and the heel side are swapped) and worn, the above-described configuration can produce the following effects. As described above, when the foot cover is placed on a flat surface with the toe A or heel C facing upward, the foot cover 200 is approximately symmetrical vertically and horizontally if the opening OP is not included, but is approximately symmetrical horizontally and asymmetrical vertically if the opening OP is included because the length L(1) from the top of the foot cover to the top of the opening OP and the length L(2) from the bottom of the foot cover to the bottom of the opening OP are different. The toe side reinforcement part 140 and the toe side anti-slip part 130 are also provided on the heel side, which is up and down opposite to the toe side, as the heel side reinforcement part 140 and the heel side anti-slip part 130. As shown in Figs. 5 to 7, the toe side reinforcement part 140 and the heel side reinforcement part 140 are approximately symmetrical vertically and horizontally in shape and position, and are made of the same material. Furthermore, the toe side reinforcement part 140 and the heel side reinforcement part 140 are approximately symmetrical vertically and horizontally in shape and position, and are made of the same material. The toe-side anti-slip part 130 and the heel-side anti-slip part 130 are substantially symmetrical in shape from top to bottom and are made of the same material. Therefore, even if the toe side and the heel side are switched (including, but not limited to, the toe side with a hole at the tip being switched to the heel side), the toe wearing depth changes, but it is possible to prevent the foot cover from coming off or shifting out of position when walking or putting on or taking off the pumps. In other words, even if the toe side and heel side are switched and the foot is put on and taken off, the reinforcing portion 140 formed of, for example, an elastic knitted fabric that wraps around the toe in the vertical direction can continue to reinforce the toe portion A, and the anti-slip portion 130 formed of, for example, a narrow tape made of silicone resin can continue to prevent the foot cover 100 from slipping off the heel at a position where the anti-slip effect at the heel is most pronounced (for example, a height position near the subtalar joint) (even if there is a hole that was made when the foot cover was used as the toe, this does not affect the ability of the anti-slip portion 130 to prevent the foot cover 200 from slipping off). Unlike the foot cover 100, the foot cover 200 is worn deeper on the heel side when the toes are shallowly worn as shown in Figs. 4(A) and 5 compared to when the toes are deep worn as shown in Figs. 4(B) and 6. However, whether the toes are shallowly worn or deep worn, it is preferable to determine the positions of both anti-slip parts 130 (including changing the shape of the opening OP (the vertical length of the opening OP in Fig. 7, which is ultimately LL(2))) so that the anti-slip effect on the heel can be most effectively achieved (for example, at a height position near the subtalar joint). Also, as with the foot cover 100, the foot cover 200 has anti-slip parts 130 on both the toe A side and the heel C side of the opening OP that are shaped along the periphery of the opening OP (not the entire circumference of the opening OP), so that the anti-slip parts 130 are not provided around the entire circumference of the opening OP and are not too tight, making it less likely to slip off and come off than a foot cover that has anti-slip parts on only one side. As a result, foot covers containing synthetic fibers, which are mainly made from synthetic resins derived from petroleum, will not be disposed of, which will also be beneficial to the SDGs, an international agreement.

[0049] Furthermore, unlike the foot cover 100 according to the first embodiment, in the foot cover 200 according to this embodiment, regardless of whether one or both of the foot covers 200 with torn or thinned toes (holes or holes in them) are worn in reverse (switching the toe side and the heel side), the toe depth can be changed by switching the toe side and the heel side. The toe shallow state shown in Fig. 4(A) and Fig. 5 and the toe deep state shown in Fig. 4(B) and Fig. 6 can be switched using one pair of foot covers 200 for both the left and right. That is, when shoes with a large opening in the instep such as pumps are worn, the toe shallow state is adopted, and the toe deep state is adopted when shoes with a small opening in the instep (shoes with a narrow opening) are worn, or when the degree of coverage from the toes to the instep is increased or when the shoes are worn as room socks.

[0050] Also, as in the first embodiment described above, it is also preferable to provide an anti-slip tape 120 (here, an elastic narrow knitted fabric, but other materials and shapes are also acceptable) around the entire periphery of the opening OP, and to provide a tape-like anti-slip portion 130 on the skin side of this anti-slip tape 120.

[0051] As shown in the development view of Fig. 7 (substantially the same as the pattern), the toe portion A, side portion B, and heel portion C of this foot cover 100 (i.e., the entirety of the foot cover 100 other than the sole portion D) are made of a first stretchable knitted fabric 204, which is a single piece of fabric with a predetermined peripheral shape and an opening OP, and the sole portion D is made of a second stretchable knitted fabric 102, which is a single piece of fabric with a predetermined peripheral shape (generally a shape substantially equal to the shape of the sole of the foot). That is, the entirety of the foot cover 100 other than the sole portion D is made of the first stretchable knitted fabric 204, and the sole portion D is made of the second stretchable knitted fabric 102. The number of pieces of fabric may be three (or more) instead of two.

[0052] Then, as shown by the two arrows in Fig. 7, the two stretchable knitted fabrics are brought close to each other and sewn together at the bottom seam line 110 to give the foot cover 200 a three-dimensional shape. Note that the small triangular protrusions provided in four places on each of the two patterns in Fig. 7 are merely marks for joining (sewing, bonding).

[0053] As described above, according to the foot cover 200 of this embodiment, when the foot cover is worn with the toe side and the heel side reversed (when the toe side is replaced with the heel side regardless of the presence of a hole at the tip), it is possible to prevent the foot cover from coming off or shifting out of position when walking or putting on or taking off pumps, and it is possible to provide a foot cover that allows the coverage area of ​​the instep to be varied to change the depth of fit. <Effects of the two embodiments> As described above, the foot cover according to the first embodiment can provide a foot cover that can prevent the foot cover from coming off or shifting when walking or putting on or taking off pumps, even if the toe side and the heel side of the foot cover are switched (even if the toe side with the hole at the tip is replaced with the heel side, but this is not limited to this). Also, the foot cover according to the second embodiment can provide a foot cover that can prevent the foot cover from coming off or shifting when walking or putting on or taking off pumps, even if the toe side and the heel side of the foot cover are switched (even if the toe side is replaced with the heel side regardless of the presence of the hole at the tip), and can provide a foot cover that can change the depth of the foot cover by changing the coverage area of ​​the instep. In particular, whether the foot cover according to the first embodiment or the foot cover according to the second embodiment is worn with the toe side and the heel side reversed, i.e., the foot cover is worn with the front and back (front and back) reversed, it is extremely preferable in that it can exhibit the same function as a foot cover before and after the reverse (the foot cover according to the second embodiment further exhibits the function of adjusting the toe depth).

[0054] It should be noted that the embodiments disclosed herein are illustrative and not restrictive in all respects. The scope of the present invention is defined by the claims, not the above description, and is intended to include all modifications within the meaning and scope of the claims. [Industrial Applicability]

[0055] The present invention is suitable for foot covers to be worn on bare feet, and even if the toe side and the heel side are switched (including, but not limited to, switching the toe side with a hole at the tip to the heel side), the foot covers are hidden inside the shoe and cannot be seen (including cases where they are difficult to see), and the foot covers are prevented from coming off or shifting out of position when walking or putting on or taking off pumps. Also, when the toe side and the heel side of the foot covers are switched (switching the toe side to the heel side regardless of the presence of a hole at the tip), the foot covers are prevented from coming off or shifting out of position when walking or putting on or taking off pumps, and are particularly preferable in that the foot covers can be used to change the coverage area of ​​the instep to change the depth of the foot. [Explanation of symbols]

[0056] A Toe B Side part C heel D Plantar part F foot OP Opening 100 (First embodiment) Foot cover 102 Second elastic knitted fabric (constituting sole portion D) 104 First stretchable knitted fabric (forming a toe portion A, a side portion B, and a heel portion C) 110 Bottom suture line 120 Anti-slip tape (narrow elastic fabric on the entire upper edge of the opening) 130 Anti-slip part (thin tape made of silicone resin placed at a height near the subtalar joint) 140 Reinforcement (stretchy fabric covering the toes from front to back) 200 (Second embodiment) Foot cover 204 First stretchable knitted fabric (forming a toe portion A, a side portion B, and a heel portion C)

Claims

1. A foot cover that covers the sole of the foot, including the toes and heels, and exposes the instep and ankle, and is formed of a sole part, a side part, a heel part, and a toe part that covers the toes, An opening for inserting and removing the foot is provided on the upper and lower opposite sides of the sole of the foot, At least one first stretchable knitted fabric forming the portion other than the sole portion is joined to a second stretchable knitted fabric which is a stretchable knitted fabric different from the first stretchable knitted fabric and forms the sole portion, so that the foot cover is formed into a three-dimensional shape; The toe portion is provided with a toe-side reinforcing portion for reinforcing the toe portion, and a toe-side anti-slip portion is provided on a part of the toe side of the opening and has a shape that follows the periphery of the opening, When either the left or right side of the foot cover is placed on a flat surface with the toe portion or the heel portion facing up, the foot cover is provided with a heel side reinforcement portion and a heel side anti-slip portion which are substantially symmetrical in the left and right and top and bottom including the opening, and which are also provided on the heel side which is vertically opposite to the toe side, The toe side reinforcement portion and the heel side reinforcement portion are substantially symmetrical in shape and position from left to right to top to bottom and are made of the same material, The toe-side anti-slip portion and the heel-side anti-slip portion are substantially symmetrical in shape and position, and are made of the same material; This foot cover is characterized in that the coverage area of ​​the instep is approximately the same whether the foot cover is worn so that the reinforcing part on the toe side and the anti-slip part on the toe side face the wearer's toes or the wearer's heels, and the foot cover can be worn on both the front and back with approximately the same wearing depth.

2. A foot cover that covers the sole of the foot, including the toes and heels, and exposes the instep and ankle, and is formed of a sole part, a side part, a heel part, and a toe part that covers the toes, An opening for inserting and removing the foot is provided on the upper and lower opposite sides of the sole of the foot, At least one first stretchable knitted fabric forming the portion other than the sole portion is joined to a second stretchable knitted fabric which is a stretchable knitted fabric different from the first stretchable knitted fabric and forms the sole portion, so that the foot cover is formed into a three-dimensional shape; The toe portion is provided with a reinforcing portion for reinforcing the toe portion, and a non-slip portion is provided on a part of the opening on the toe side and has a shape that follows the periphery of the opening, When either the left or right side of the foot cover is placed on a flat surface with the toe portion or the heel portion facing up, the foot cover is approximately symmetrical from left to right and up to down if the opening is not included, and is approximately symmetrical from left to right and asymmetrical from up to down if the opening is included because the length from the top end of the foot cover to the top end of the opening is different from the length from the bottom end of the foot cover to the bottom end of the opening, and the toe side reinforcement portion and the toe side anti-slip portion are also provided on the heel side, which is up and down opposite to the toe side, as a heel side reinforcement portion and a heel side anti-slip portion, The toe side reinforcement portion and the heel side reinforcement portion are substantially symmetrical in shape and position from left to right to top to bottom and are made of the same material, The toe-side anti-slip portion and the heel-side anti-slip portion are substantially symmetrical in shape and are made of the same material. This foot cover can be worn both front and back to change the depth of wear by changing the coverage area of ​​the instep when the foot cover is worn so that the reinforcing part on the toe side and the anti-slip part on the toe side face the wearer's toes and when the foot cover is worn so that the anti-slip part on the toe side faces the wearer's heel.

3. 3. The foot cover according to claim 1 or claim 2, characterized in that the entire periphery of the opening is provided with an anti-slip tape that conforms to the periphery of the opening, and the tape-like anti-slip portion is provided on the skin side of the anti-slip tape.

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