JP7454299B1 - footwear - Google Patents

Abstract

An object of the present invention is to provide footwear and an insole having a function of correcting bowlegs. SOLUTION: Footwear 1 includes a sole portion 11 on which the foot is placed, and an upper portion that is fixed to the outer periphery of the sole portion 11 and wraps at least the instep of the foot placed on the sole portion 11. is a step formed at least in the area facing the user's middle finger, ring finger, little finger and their bases, and the part of the lateral head of the adductor hallucis muscle located closer to the heel with respect to the bases. 11a, and a front part 20 that is erected between the base of the thumb and the base of the user's middle finger and extends in the vertical direction. [Selection diagram] Figure 3

Description

FIELD OF THE INVENTION The present invention relates to footwear.

Traditionally, sandals and sandals have healthy functions such as having protrusions on the soles of the feet to stimulate pressure points on the soles of the feet while walking, and tilting the soles laterally to correct bow legs and bow legs. is widespread.

Conventionally, as this type of technology, there is a technology described in Patent Document 1. Patent Document 1 discloses that the front tsubo of the thong is attached at two positions so as to sandwich the index finger so that the ratio of thumb to middle finger, ring finger, and little finger is 1 to 3 with the index finger at the center; A health sandal is disclosed in which the top part on which the index finger rests is raised by about 2 to 5 mm.

Utility model registration No. 3232282

Incidentally, in recent years, it has been desired that shoes also have functions good for health. For example, in order to make bow legs less noticeable, there is a desire for shoes that have a function to correct bow legs.

The present invention aims to meet such demands and provide footwear having a function of correcting bowlegs.

In order to achieve the above object, the present invention includes the configuration described below.
(I) Footwear comprising a sole portion on which a user's foot rests, and an upper portion that is fixed to the outer periphery of the sole portion and wraps around at least the instep of the foot placed on the sole portion,
The sole portion is
an outer sole portion disposed on the outside; and an inner sole portion disposed on the outer sole portion and inside the upper portion;
The inner sole portion is a portion facing at least the middle finger, ring finger, and little finger of the user's foot, and the root portion thereof, and the portion of the lateral head of the adductor hallucis muscle located closer to the heel with respect to the root portion. If the sole of the foot is divided into two parts near the arch of the foot, into the toe side and the heel side, and the toe side is further divided into an inner half on the thumb side and an outer half on the little finger side, the area opposite to the outer half a first hole formed in a region opposite to a region between the base of the user's thumb and the base of the middle finger;
A first step is formed by the first missing portion and the upper surface of the outer sole portion,
The outer sole portion has a recess formed in a portion facing the first hole,
The upper part has a second hole formed in a part opposite to a part between the base of the user's thumb and the base of the middle finger,
A part that faces at least the user's middle finger, ring finger, little finger, and their bases, and the lateral head of the adductor hallucis muscle, which is located closer to the heel with respect to the base of the foot, and the sole of the foot. When the area near the arch of the foot is divided into two parts, the toe side and the heel side, and the toe side is further divided into an inner half on the thumb side and an outer half on the little finger side, it is formed in a part opposite to the outer half, and the corresponding having the first step that makes the part lower than the part facing the user's thumb and middle finger and their base parts;
The device further includes a rod-shaped forepart that is erected between the base of the user's thumb and the base of the index finger and extends in the vertical direction;
The footwear characterized in that the tip of the forefoot part is inserted into the second hole from the outside, inserted into the first hole, and fitted into the recess.
(II) The footwear of (I),
The inner sole portion has a second missing portion formed at a portion facing the user's heel,
Footwear characterized in that a second step is formed by the second missing portion and the upper surface of the outer sole portion.
(III) The footwear of (I) or (II),
The footwear characterized in that the inner sole portion is detachable from the outer sole portion.
(IV) The footwear of (I) to (III),
The footwear further comprises a U-shaped band whose ends are rotatably attached to both sides of the upper part on the user's heel side by fasteners and which can be placed above the user's heel. .

(1) Footwear comprising a sole portion on which a user's foot rests, and an upper portion that is fixed to the outer periphery of the sole portion and wraps at least the instep of the foot placed on the sole portion,
The sole portion is
It is formed in a part that faces at least the user's middle finger, ring finger, little finger, and their bases, and the part of the lateral head of the adductor hallucis muscle located closer to the heel with respect to the base part, and a first level difference that is lower than the part opposite the user's thumb and middle finger and their bases;
Footwear characterized by having a front part that is erected between the base of the user's thumb and the base of the middle finger and extends in the vertical direction.

According to (1), when a user walks wearing the footwear of the present invention, the user's middle toe, ring finger, little finger and their bases on the sole of the foot, and positions closer to the heel with respect to the bases of the feet. The part of the lateral head of the adductor hallucis muscle, that is, the part on the toe side and outside of the sole of the foot, is separated from the surface of the sole that is lowered by the first step. Therefore, the user's weight is concentrated on the base of the user's big toe and middle finger, that is, on the medial side of the sole of the foot. This makes it possible to correct the center of gravity of the user's legs inward, and if the user has bow legs, it becomes possible to narrow the distance between the user's knees.

(2) In (1), the sole part is formed at a part facing the user's heel, and has a second part that makes the part lower than the part facing the user's thumb and middle finger and their bases. Footwear characterized by further having a step.

According to (2), when a user walks wearing the footwear of the present invention, the heel part of the sole of the foot is separated from the surface of the sole portion that is lowered by the second step, so that the user's Weight is further concentrated on the medial side of the sole of the foot, which is in direct contact with the sole. This makes it possible to correct the center of gravity of the user's legs inward, and if the user has bow legs, it becomes possible to narrow the distance between the user's knees.

(3) In (1), the sole portion has an outer sole portion disposed on the outside, and an inner sole portion disposed on the outer sole portion and inside the upper portion,
The inner sole portion is located at a portion facing at least the middle finger, ring finger, and little finger of the user's foot, and the root portion thereof, and the portion of the lateral head of the adductor hallucis muscle located closer to the heel with respect to the root portion. having a first cutout formed;
The footwear characterized in that the first step is formed by the first missing part and the upper surface of the outer sole part.

According to (3), when a user walks wearing the footwear of the present invention, the region of the first missing part in the inner sole becomes a step, and the part of the sole facing the missing part becomes lower due to the step. The weight of the user is concentrated on the medial side of the sole of the user's foot, as the user's weight is separated from the surface of the sole portion of the user's foot. This makes it possible to correct the center of gravity of the user's legs inward, and if the user has bow legs, it becomes possible to narrow the distance between the user's knees.

(4) In (2), the sole portion includes an outer sole portion disposed on the outside, and an inner sole portion disposed on the outer sole portion and inside the upper portion,
The inner sole portion is located at a portion facing at least the middle finger, ring finger, and little finger of the user's foot, and the root portion thereof, and the portion of the lateral head of the adductor hallucis muscle located closer to the heel with respect to the root portion. It has a first missing part formed and a second missing part formed in a part facing the user's heel,
The first step is formed by the first missing part and the upper surface of the outer sole part,
The footwear characterized in that the second step is formed by the second missing part and the upper surface of the outer sole part.

(4) provides the same effect as (1) and (2).

(5) Footwear according to (3) and (4), characterized in that the inner sole portion is removable from the outer sole portion.

According to (5), it becomes possible to replace the inner sole portion as necessary. For example, it becomes possible to use a normal inner sole part in which the first missing part and the second missing part are not formed, or to replace it with a new inner sole part.

(6) In (3) and (4), the inner sole portion has a hole into which the forefoot portion is inserted;
The footwear characterized in that the outer sole portion has a recessed portion that fits into a tip portion of the forefoot portion inserted into the hole.

According to (6), it is possible to prevent the inner sole from shifting relative to the outer sole, and the outer area of the sole of the user's foot, including the little finger and the vicinity of its base, is lowered by the step. This makes it possible to stably face the surface of the sole portion.

(7) In (1) to (4), the U is rotatably attached to both ends of the upper portion on the side of the user's heel by fasteners and can be placed above the user's heel. Footwear further comprising a letter-shaped band.
According to (7), when the user uses the footwear, by placing the band above the user's heel, the footwear becomes difficult to come off.

(8) The footwear according to any of (1) to (4), further comprising a forefoot portion that is erected at a portion between the base of the user's thumb and the base of the middle finger and extends in the vertical direction. .

According to (8), by sandwiching the front part between the user's thumb and middle finger, it becomes difficult for the thumb, middle finger, and the vicinity of their bases to separate from the inner sole part. This allows the outer region of the sole of the user's foot, including the little finger and the vicinity of its base, to stably face the surface of the sole portion that is lowered by the step.

(9) An insole placed inside footwear,
The first finger is formed in a region facing at least the middle finger, ring finger, and little finger of the user's foot, and the root portion thereof, and the portion of the lateral head of the adductor hallucis muscle located closer to the heel with respect to the root portion. The missing part and
An insole characterized by having a front part that is erected between the base of the user's thumb and the base of the middle finger and extends in the vertical direction.

According to (9), when a user walks wearing footwear equipped with the insole of the present invention, the toe side and outer part of the sole of the foot is separated from the inner surface of the footwear, so the user's weight is Concentrates on the medial side of the user's soles. This makes it possible to correct the center of gravity of the user's legs inward, and if the user has bow legs, it becomes possible to narrow the distance between the user's knees.

(10) The insole according to (9), further comprising a second missing portion formed at a portion facing the user's heel.

According to (10), when a user walks wearing footwear with the insole of the present invention, the heel part of the sole of the foot is separated from the inner surface of the footwear, so the weight of the user is transferred to the sole of the foot. Concentrate more on the medial side. This makes it possible to correct the center of gravity of the user's legs inward, and if the user has bow legs, it becomes possible to narrow the distance between the user's knees.

(11) The insole according to (9) or (10), further comprising a forefoot part that is erected between the base of the thumb and the base of the user's middle finger and extends in the vertical direction. .

According to (11), by sandwiching the front part between the user's thumb and middle finger, it becomes difficult for the thumb, middle finger, and the vicinity of their bases to separate from the inner sole part. This allows the outer region of the sole of the user's foot, including the little finger and the vicinity of its base, to stably face the surface of the sole portion that is lowered by the step.

According to the present invention, it is possible to provide footwear and an insole for footwear having a function of correcting bowlegs.

FIG. 1 is a perspective view showing the appearance of a shoe 1 according to a first embodiment of the present invention. FIG. 2 is a side view of FIG. 1; FIG. 2 is an explanatory diagram showing the appearance of a sole portion 11 according to the first embodiment of the present invention. FIG. 2 is a side view showing the appearance of footwear 2 according to a second embodiment of the present invention. FIG. 7 is a side view showing the appearance of a sole portion 16 according to a second embodiment of the present invention. It is a side view showing the appearance of footwear 3 in a modification of the second embodiment of the present invention. FIG. 2 is a plan view showing the appearance of the insole in the present invention. FIG. 6 is an explanatory diagram showing the appearance of a sole portion 11 according to a modification of the first embodiment of the present invention. FIG. 7 is a side view showing the appearance of footwear 3 in another modification of the second embodiment of the present invention.

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a perspective view showing the appearance of footwear 1 according to the first embodiment of the present invention. FIG. 2 is a side view of FIG. 1. The footwear 1 is so-called indoor shoes, and includes an upper part 10 and a sole part 11. Note that FIGS. 1 and 2 show footwear 1 worn on the user's left foot, and since the footwear 1 worn on the right foot is bilaterally symmetrical with respect to the footwear 1 worn on the left foot, the footwear 1 worn on the right foot is A detailed explanation of 1 will be omitted.

The upper part 10 is made of a sheet-like flexible member, and covers the instep of the user's foot and around the ankle. The upper portion 10 is made of thick cloth, synthetic leather, rubber material, EVA urethane material, or the like. The sole portion 11 is a so-called shoe sole, and is a foot-shaped member that comes into contact with the sole of the user's foot. The footwear 1 is constructed by fixing the upper part 10 to the outer periphery of the sole part 11 by stitching or using adhesive.

FIG. 3 is an explanatory diagram showing the appearance of the sole part 11 in the first embodiment of the present invention, FIG. 3(a) is a diagram with the upper part 10 removed from FIG. 2, and FIG. FIG. 3(a) is a plan view of FIG. 3(a).

The sole section 11 includes an outer sole section 12 disposed on the outside, an inner sole section 13 disposed on the outer sole section 12 and inside the upper section 10, and a front section 20.

The outer sole portion 12 is a flat member made of a rubber material, an EVA urethane material, or the like, and shaped like the outer circumference of the foot.

The inner sole portion 13 is a flat member made of a rubber material, an EVA urethane material, or the like, and has a predetermined thickness that is one size smaller than the outer sole portion 12 . The inner sole portion 13 may be made of the same material as the outer sole portion 12 or may be made of a different material, but it is desirable that the inner sole portion 13 be made of a material that does not easily deform significantly in the thickness direction. The inner sole portion 13 includes a heel portion 13a on which the user's heel is placed, and a toe portion 13b on which the user's toes are placed.

The front part 20 is made of cloth or synthetic resin, and is arranged at the toe part 13b of the inner sole part 13. Specifically, the forefoot portion 20 is erected at a portion of the toe portion 13b between the base of the user's thumb and the base of the middle finger, and extends in the vertical direction to connect the user's big toe and index finger. sandwiched between.

Although the front part 20 is formed in a cylindrical shape in FIG. 3, it may be in the form of a band or a string, and is applicable as long as it can be held between the big toe and index finger of the user. Further, in FIG. 3, the front part 20 is shown standing up from the inner sole part 13, but may be set up standing from the outer sole part 12. In this case, a hole is formed in the toe part 13b of the inner sole part 13, and the forefoot part 20 provided upright on the outer sole part 12 is inserted into this hole, so that the inner sole part 13 is placed on the outer sole part 12. It may be placed.

Further, it is desirable that the inner sole portion 13 does not shift with respect to the outer sole portion 12 inside the upper portion 10. Therefore, it is desirable to fix the inner sole part 13 to the outer sole part 12 with an adhesive or the like, or to fix the upper end of the front part 20 to the upper part 10 with an adhesive, stitching, or the like.

The inner sole portion 13 further includes a missing portion 13c on the little finger side with respect to the forefoot portion 20. The missing part 13c is made by making a cut along the longitudinal direction of the inner sole part 13 from the end of the inner sole part 13 on the toe side, passing through a part slightly closer to the little finger with respect to the forefoot part 20, and cutting it to the little finger side of the sole. It is formed by cutting a gentle arc to the boundary between the heel and the arch of the foot on the side of the foot. A step 11a is formed by the thickness of the outer sole portion 12 and the upper surface of the inner sole portion 13 at the portion of the missing portion 13c.

Next, a state in which the user wears the footwear 1 will be described. When the user wears the footwear 1, it is preferable that the user wears socks such as military socks in which the big toe and index toe are separated.

A user can put on the footwear 1 by putting his or her feet through the upper part 10 of the footwear 1 and pinching the front part 20 between the user's big toe and index finger. At this time, since the area around the user's ankle is covered by the upper portion 10, the footwear 1 becomes difficult to come off from the user's foot.

When the user is wearing the footwear 1, the user's middle finger, ring finger, little finger and their bases, and the lateral head of the adductor hallucis muscle located closer to the heel with respect to the bases; The missing portion 13c faces the lateral part of the arch of the flexor digitorum brevis muscle. In other words, if the sole of the foot is divided into two parts near the arch of the foot, into the toe side and the heel side, and the toe side is further divided into the thumb side (inside) and the little finger side (outside), the part of the little finger (outside) half is generally opposed to the missing portion 13c. Furthermore, by sandwiching the front part 20 between the user's thumb and middle finger, the thumb, middle finger, and the vicinity of their bases are difficult to separate from the surface of the inner sole part 13. This allows the outer region of the sole of the user's foot, including the little finger and the vicinity of its base, to stably face the surface of the sole portion 11 that is lowered by the step 11a.

Therefore, when the user walks wearing the footwear 1, the outer half of the sole of the foot on the toe side becomes separated from the bottom surface of the step 11a, and the user's weight is transferred to the inner side of the sole of the user's foot. Concentrate on the sides. In addition, when the user stands upright or walks, he or she becomes conscious of not touching the outer part of the sole of the foot, which is opposed to the missing part 13c, on the bottom surface of the step 11a. This makes it possible to correct the center of gravity of the user's legs inward, and if the user has bow legs, it becomes possible to narrow the distance between the user's knees.

According to this embodiment configured in this way, when the user wears the shoes, the user's weight is concentrated on the inner side of the sole, so it is possible to correct the center of gravity of the user's legs inward. This makes it possible to narrow the distance between the user's knees. This allows the user to walk without worrying too much about bow legs. According to the present embodiment, when Spiel plaster is applied to corns formed on the outside of the sole, wearing the footwear 1 makes it possible to separate the area to which Spiel plaster is applied from the bottom of the step 11a. Therefore, it can be expected to have the effect of reducing the slippage or peeling of Spiel plaster when walking.

[Second embodiment]
FIG. 4 is a side view showing the appearance of footwear 2 according to the second embodiment of the present invention. Note that the same reference numerals are omitted for the same members or members having the same function as the members in the footwear 1 of the first embodiment shown in FIGS. 1 and 2, and detailed description thereof will be omitted. The footwear 2 is a sandal with a heel strap, and includes an upper part 15 and a sole part 16. Note that FIG. 4 shows the footwear 2 worn on the user's left foot, and since the footwear 2 worn on the right foot is bilaterally symmetrical with respect to the footwear 2 worn on the left foot, the footwear 2 worn on the right foot is Detailed explanation will be omitted.

The upper part 15 is made of a rubber material, an EVA urethane material, or the like, and covers the top of the user's foot. The sole portion 16 is a so-called shoe sole, and has a foot-shaped shape that comes into contact with the sole of the user's foot.

5 is a side view showing the appearance of the sole portion 16 according to the second embodiment of the present invention, FIG. 5(a) is a view with the upper portion 15 removed from FIG. 4, and FIG. 5(b) is a plan view of FIG. 5(a). The sole section 16 includes an outer sole section 17 disposed on the outside, an inner sole section 18 disposed on the outer sole section 17 and inside the upper section 15, and a front section 20.

The outer sole portion 17 is a flat member shaped like the outer circumference of the foot. The outer sole portion 17 is made of the same rubber material, EVA urethane material, or the like as the upper portion 15. The upper part 15 and the outer sole part 17 are integrally formed, and the upper part 15 is continuous with the outer peripheral part of the outer sole part 17 except for the heel part.

Both ends of the heel band 30 are rotatably attached to both sides of the upper part 15 on the user's heel side by fasteners. The heel band 30 is formed by bending a flexible band-like member into a U-shape. The U-shaped center part of the heel band 30 is swingable in the vertical direction, and the heel band 30 can be placed on the edge of the arch-shaped upper part 15 that serves as the entrance for the toes, or on the edge of the heel part of the outer sole part 17. It is possible to position it above. When the user uses the footwear 2, the heel band 30 is placed above the user's heel, making it difficult for the footwear 2 to come off.

The inner sole portion 18 is a flat member made of a rubber material, an EVA urethane material, or the like, and has a predetermined thickness that is one size smaller than the outer sole portion 17 . The inner sole portion 18 may be made of the same material as the outer sole portion 17 or may be made of a different material, but it is desirable that the inner sole portion 18 be made of a material that does not easily deform significantly in the thickness direction.

The inner sole portion 18 includes a toe portion 18b, a missing portion 18c, and a missing portion 18d. The toe part 18b and the missing part 18c in the inner sole part 18 correspond to the toe part 13b and the missing part 13c in the inner sole part 13 according to the first embodiment shown in FIG. , which is a portion of the inner sole portion 13 according to the first embodiment shown in FIG. 3 in which the heel portion 13a is missing. That is, the shape of the inner sole portion 18 corresponds to the shape of the inner sole portion 13 according to the first embodiment shown in FIG. 3, with the heel portion 13a missing.

A front part 20 is provided upright on the toe part 18b of the inner sole part 18. The standing position of the front part 20 in the inner sole part 18 is the same as the standing position of the front part 20 in the inner sole part 13 according to the first embodiment shown in FIG.

When the inner sole portion 18 is placed on the outer sole portion 17, steps 16a and 16b are formed at the missing portions 18c and 18d due to the thickness of the outer sole portion 17 and the upper surface of the inner sole portion 18. .

When the user wears the footwear 2, the outer half of the toe side of the user generally faces the missing part 18c, and the heel part faces the missing part 18d.

Therefore, similarly to the footwear 1 of the first embodiment shown in FIG. Since it is spaced apart from the bottom surface of the step 11a, the user's weight is concentrated on the inner side of the user's sole. Therefore, when the user stands upright or walks, he or she becomes conscious of not touching the outer part of the sole of the foot, which is opposite to the missing part 18c, on the bottom surface of the step 11a. This makes it possible to correct the center of gravity of the user's legs inward, and if the user has bow legs, it becomes possible to narrow the distance between the user's knees.

Moreover, since the footwear 2 has the missing part 18d, the user is able to walk on tiptoe, and by walking in the footwear 2, the user naturally trains the muscles from the back of the thighs to the buttocks. becomes possible. Note that although the user's heel easily moves up and down in the region of the missing portion 18d, the heel band 30 also moves up and down easily, so that the occurrence of shoe blisters can be reduced.

[Modification of second embodiment]
FIG. 6 is a side view showing the appearance of footwear 3 according to a modification of the second embodiment of the present invention, with FIG. 6(a) being a side view and FIG. 6(b) being a front view. Note that the same reference numerals are omitted for the same members or members having the same functions as those in the footwear 2 of the second embodiment shown in FIG. 4, and detailed explanations thereof will be omitted.

The footwear 3 has a hole 15a formed in the upper part 15 of the footwear 2 of the second embodiment shown in FIG. 4, a hole 18e formed in the inner sole part 18, and a front part 20 formed in a rod shape. It is.

The hole 15a and the hole 18e are formed at a portion of the upper portion 15 and the inner sole portion 18 that opposes a portion between the base of the user's thumb and the base of the user's middle finger.

The inner sole portion 18 functions as a so-called insole that can be inserted into and removed from the outer sole portion 17 . In the footwear 3, the inner sole part 18 is inserted inside the upper part 15, placed on the outer sole part 17, the front part 20 is inserted from the outside into the hole 15a, and the tip of the front part 20 is inserted. It is assembled by fitting into the hole 18e.

According to the modified example of the second embodiment configured in this way, it is possible to achieve the effects of the footwear 2 of the second embodiment shown in FIG. 4 and to replace the inner sole portion 18 as necessary. become. For example, it is possible to use a normal inner sole portion in which the missing portions 18c and 18d of the inner sole portion 18 are not formed. Alternatively, when the inner sole portion 18 becomes thin due to use and the height of the steps 16a, 16b becomes smaller, it becomes possible to replace the inner sole portion 18 with a new one.

Note that the modification of the second embodiment is not limited to the one described above. For example, the hole 18e may be a through hole, and a recess into which the tip of the front part 20 can fit may be formed at a portion of the outer sole portion 17 facing the hole 18e. This makes it possible to prevent the inner sole part 18 from shifting with respect to the outer sole part 17, and allows the outer region of the user's sole, including the little finger and the vicinity of its base, to face the step 16a. become.

Although the embodiments of the present invention have been described above, the embodiments of the present invention are not limited to the above-described embodiments. For example, although the embodiments described above have been described using slippers and sandals with heel straps as examples, the invention can also be applied to casual shoes, leather shoes, and the like.

Furthermore, by forming a recess in the region of the missing portion 13c of the inner sole portion 13 in the outer sole portion 12 or in the region of the missing portions 18c and 18d of the inner sole portion 18 in the outer sole portion 17, the step 11a or the step 16a, 16b may be made deeper.

Further, in the above-described embodiment, the outer sole portion 12 and the inner sole portion 13, or the outer sole portion 17 and the inner sole portion 18, are separate bodies, but they may be integrally formed by integral molding.

In addition, as shown in FIG. 7, by attaching the front part 20 to the inner sole part 13 or 18, it can be configured as an independent insole, and can be used with existing slippers, sandals with heel straps, casual shoes, leather shoes, etc. It may be inserted and used. This makes it possible to correct the center of gravity of the user's legs inward, and if the user has bow legs, it becomes possible to narrow the distance between the user's knees.

Further, in this embodiment, the front part 20 is provided, but in this embodiment, the upper part 10 covers the instep of the user's foot and around the ankle. There is little misalignment with the inner sole portion 13. As a result, for example, as shown in FIG. 8, the front section 20 in the first embodiment shown in FIG. It is also possible to omit the portion 15a and the hole 18e.

1, 2, 3 Footwear 10, 15 Upper part 11, 16 Sole part 11a, 16a, 16b Step 12, 17 Outer sole part 13, 18 Inner sole part 13a Heel part 13b, 18b Toe part 13c, 18c Missing part 15a Hole part 18d Missing part 18e Hole part 20 Front part 30 Heel band

Claims (4)

Footwear comprising a sole portion on which a user's foot rests, and an upper portion that is fixed to the outer periphery of the sole portion and wraps around at least the instep of the foot placed on the sole portion,
The sole portion is
an outer sole portion disposed on the outside; and an inner sole portion disposed on the outer sole portion and inside the upper portion;
The inner sole portion is a portion facing at least the middle finger, ring finger, and little finger of the user's foot, and the root portion thereof, and the portion of the lateral head of the adductor hallucis muscle located closer to the heel with respect to the root portion. If the sole of the foot is divided into two parts near the arch of the foot, into the toe side and the heel side, and the toe side is further divided into an inner half on the thumb side and an outer half on the little finger side, the area opposite to the outer half a first hole formed in a region opposite to a region between the base of the user's thumb and the base of the middle finger;
A first step is formed by the first missing portion and the upper surface of the outer sole portion,
The outer sole portion has a recess formed in a portion facing the first hole,
The upper part has a second hole formed in a part opposite to a part between the base of the user's thumb and the base of the middle finger,
A part that faces at least the user's middle finger, ring finger, little finger, and their bases, and the lateral head of the adductor hallucis muscle, which is located closer to the heel with respect to the base of the foot, and the sole of the foot. When the area near the arch of the foot is divided into two parts, the toe side and the heel side, and the toe side is further divided into an inner half on the thumb side and an outer half on the little finger side, it is formed in a part opposite to the outer half, and the corresponding having the first step that makes the part lower than the part facing the user's thumb and middle finger and their base parts;
The device further includes a rod-shaped forepart that is erected between the base of the user's thumb and the base of the index finger and extends in the vertical direction;
The footwear characterized in that the tip of the forefoot part is inserted into the second hole from the outside, inserted into the first hole, and fitted into the recess. Footwear according to claim 1, comprising:
The inner sole portion has a second missing portion formed at a portion facing the user's heel,
Footwear characterized in that a second step is formed by the second missing portion and the upper surface of the outer sole portion. The footwear according to claim 1 or 2,
The footwear characterized in that the inner sole portion is detachable from the outer sole portion. The footwear according to claim 1 or 2,
The footwear further comprises a U-shaped band whose ends are rotatably attached to both sides of the upper part on the user's heel side by fasteners and which can be placed above the user's heel. .