Shoes

Abstract

The present invention provides a shoe comprising a foot platform (10), the foot platform (10) having: a heel thin-walled portion (12a) having a reduced thickness at the portion opposite to the user's heel; a little-toe thin-walled portion (12b, 11f) having a reduced thickness at the portion opposite to the user's little toe; and a mounting portion (11b) formed at the portion other than the heel thin-walled portion (12a) and the little-toe thin-walled portion (12b, 11f) for supporting the user's foot, the little-toe thin-walled portion (12b, 11f) being composed of a little-toe flat portion (12b) and a downwardly inclined portion (11f). The flat portion on the little toe side (12b) is a portion that, when the user is wearing shoes, is at least opposite to the user's ring toe, little toe, and their root portions, as well as the portion of the adductor hallucis muscle located near the heel relative to the root portion. The downward sloping portion (11f) is a portion that, when the user is wearing shoes, is opposite to the abductor digitorum muscle of the user's foot. It slopes downward from the upper surface of the mounting portion (11b) toward the upper surface of the flat portion on the little toe side (12b), and the upper surface of the flat portion on the little toe side (12b) is continuous with the upper surface of the heel thin wall portion (12a).

Description

Technical Field

[0001] This invention relates to a shoe that is open below the ankle, such as flip-flops or sandals. Background Technology

[0002] Open-toe shoes, such as flip-flops and sandals, typically consist of straps or laces attached to a flat sole shaped like the foot. In addition, flip-flops and sandals with health benefits have become increasingly popular, for example, by incorporating protrusions on the sole to stimulate acupoints on the sole during walking, or by using a lateral tilt to correct conditions like bowlegs or knock-knees.

[0003] Therefore, the applicant has proposed the technology described in Patent Document 1. Patent Document 1 discloses a shoe in which at least the following portions are removed from the footrest: the portion opposite to the middle toe, ring toe, little toe, and their root portions; the portion of the adductor hallucis muscle located near the heel relative to the root portions; and the portion opposite to the heel. According to this shoe, when the user walks, because the toe-side and outer portion of the foot separates from the ground, the user's weight is concentrated on the inner side of the foot. This corrects the center of gravity of the user's legs inward, narrows the gap between the knees if the user has bowlegs, and allows the user to adopt a tiptoeing posture. Walking in this shoe naturally exercises the muscles of the calves, hamstrings, and buttocks.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent No. 7166035 Summary of the Invention

[0007] The technical problem that the invention aims to solve

[0008] However, for people who frequently wear high-heeled shoes, the center of gravity shifts forward, causing the knees to tend to be positioned forward as well. This leads to the ankles tilting inward and the knees turning inward, meaning the knees have a tendency to twist inward. Maintaining this position for extended periods can increase the risk of pelvic expansion, leading to what's known as X-shaped legs, and can also cause the cervical spine to remain in a straight position, resulting in a straightening of the cervical spine's natural curvature (straight neck). Therefore, wearing high heels can cause skeletal distortion, potentially leading to foot and neck pain.

[0009] The present invention was made in view of such problems, and its purpose is to provide a shoe with posture correction function.

[0010] Technical solutions to solve technical problems

[0011] To achieve the above objectives, the present invention comprises the following configuration.

[0012] [1] The present invention provides a shoe characterized by having a foot platform (10) for supporting the foot, the foot platform (10) having: a heel wall portion (12a) with a reduced thickness at the portion opposite to the user's heel; a little toe side wall portion (12b, 11f) with a reduced thickness at the portion opposite to the user's little toe side; and a mounting portion (11b) formed at a portion other than the heel wall portion (12a) and the little toe side wall portion (12b, 11f) for supporting the user's foot.

[0013] The thin-walled portions (12b, 11f) on the little toe side are composed of a flat portion (12b) on the little toe side and a downwardly inclined portion (11f).

[0014] The flat portion on the little toe side (12b) is the part of the foot that, when the user is wearing shoes, is at least opposite to the user's ring toe, little toe, and their root portions, as well as the portion of the adductor hallucis muscle located near the heel relative to the root portions.

[0015] The downward-sloping portion (11f) is located opposite the abductor digitorum brevis muscle of the user's foot when the user is wearing shoes. It slopes downward from the upper surface of the mounting portion (11b) toward the upper surface of the flat portion on the little toe side (12b).

[0016] The upper surface of the flat portion (12b) on the little toe side is continuous with the upper surface of the thin-walled portion (12a) on the heel.

[0017] [2] In the above-mentioned [1] solution, the shoe is characterized in that the shoe also has a clog (20) installed on the foot platform (10), the clog (20) being composed of a front clog portion (21) that can be held by the big toe and the second toe of the foot and a horizontal clog portion (22) that rests on the instep.

[0018] [3] In the above-mentioned [2] scheme, the cross strap (22) has an outer cross strap (22b) that rests on the little toe side of the instep and an inner cross strap (22a) that rests on the big toe side of the instep.

[0019] The outer side strap (22b) and the inner side strap (22a) extend from the front strap (21) and are attached at their ends to the heel thin wall (12a).

[0020] [4] In the above [2] scheme, the cross strap (22) extends from the front strap (21) and rests on the big toe side of the instep, but not on the little toe side.

[0021] [5] In the above-described [4] scheme, the end of the cross strap (22) is mounted on the mounting portion (11b).

[0022] According to the above [1] scheme, when a user who always wears high-heeled shoes wears the shoes, the thin wall of the heel and the thin wall of the little toe side are opposite to the part of the abductor digitorum muscle in the user's foot. As a result, the outer side of the user's foot (the side of the little toe) leaves the surface of the foot platform, thereby making the outer side of the foot (the side of the big toe) easy to move downward. Moreover, since the outer side of the user's foot moves downward, the user's knee is easy to open outward. As a result, the knee that has twisted inward due to wearing high-heeled shoes can be restored to its original state, and the bones of the leg can be restored to their original state. In addition, when the user wears the shoes of the present invention, the heel can contact the surface of the thin wall of the heel while the foot is supported on the foot platform. Therefore, since the heel side is lower than the toe side, the user's center of gravity can be shifted backward, and the weight is easily applied to the heel side. Therefore, it can correct forward-leaning posture, and when walking, the user can move his heel up and down while bearing the weight of his foot on the footrest, thus effectively exercising the muscles of the user's calves, back of the thighs and buttocks.

[0023] Furthermore, when the little toe side of the foot moves downward while the user is wearing shoes, it first comes into contact with the downward-sloping section, thus limiting excessive downward movement of the outer side of the user's foot. As a result, walking is easier while restoring the knee from inward rotation to its original position.

[0024] According to the above [2] scheme, by using the big toe and second toe to hold the front strap part and placing the cross strap part on the instep, the shoe can be put on the foot.

[0025] According to the above [3] scheme, since the outer and inner cross straps are installed on the heel thin wall, the user's foot can be reduced from being significantly separated from the heel thin wall when walking in the shoes. Thus, walking in the shoes is possible.

[0026] According to the scheme described above [4], when the user is wearing shoes, the outer side of the user's foot is opposite the thin wall of the little toe and the thin wall of the heel. At this time, the outer side of the user's foot is in a state where it is easy to move downwards, and since it is not resting on the cross strap of the user's little toe side, the outer side of the user's foot is easy to leave the foot platform. Therefore, in order to maintain the posture, the user will try to grip the foot platform by using the arch structure near the arch of the user's foot. By having the user wear shoes, this gripping action can be promoted, and as a result, the user's bones can be guided to move towards a normal state.

[0027] According to the above [5] scheme, the cross strap can be reliably placed on the instep on the big toe side.

[0028] The effects of the invention

[0029] According to the present invention, it is possible to provide a shoe with posture correction function. Attached Figure Description

[0030] Figure 1 This is a perspective view showing the appearance of the shoe according to the first embodiment of the present invention.

[0031] Figure 2 yes Figure 1 Top view.

[0032] Figure 3 yes Figure 1 Side view.

[0033] Figure 4 This is a perspective view of the shoe according to the second embodiment of the present invention.

[0034] Figure 5 yes Figure 4 Top view.

[0035] Figure 6 yes Figure 4 Side view. Detailed Implementation

[0036] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0037] [First Implementation Method]

[0038] Figure 1 This is a perspective view showing the appearance of the shoe 1 according to the first embodiment of the present invention. Figure 2 yes Figure 1 Top view. Figure 3 yes Figure 1 Side view. Shoe 1 is a so-called beach sandal, featuring a platform 10 and straps 20. Additionally, Figures 1-3 The shoe 1 worn on the user's left foot is shown. The shoe 1 worn on the right foot is symmetrical to the shoe 1 worn on the left foot, so a detailed description of the shoe 1 worn on the right foot is omitted. Furthermore, in the description, in the left-right direction of the shoe 1, the big toe side is designated as the inner side and the little toe side as the outer side. Also, in the front-back direction of the shoe 1, the toe side is designated as the front side and the heel side as the back side.

[0039] The foot platform 10 is made of materials such as rubber or EVA polyurethane, and has a double-layer structure consisting of a first layer 11 on the upper side and a second layer 12 on the lower side.

[0040] The first layer 11 is a plate-shaped component that, when viewed from above, at least partially mimics the outline of the outer periphery of a foot. The first layer 11 includes a heel-missing portion 11a, a mounting portion 11b, a little toe-side missing portion 11c, and a downward sloping portion 11f. For ease of explanation, although the heel-missing portion 11a and the little toe-side missing portion 11c, which are spaces without solid components, are also treated as constituent elements of the first layer 11, the solid components in the first layer 11 are the mounting portion 11b and the downward sloping portion 11f.

[0041] The heel gap 11a of the first layer 11 is formed by removing the part opposite to the user's heel.

[0042] The first layer 11, specifically the mounting portion 11b, supports the user's foot and includes an upwardly sloping portion 11d and a horizontal portion 11e. The upper surface of the upwardly sloping portion 11d is an inclined surface that abuts against the user's big toe, second toe, and the area near their toe roots. The upper surface of the horizontal portion 11e is a horizontal surface that abuts against the area from the transverse head of the user's adductor hallucis muscle to the area near the front edge of the heel. The upwardly sloping portion 11d is formed by gradually increasing the thickness of the plate-like component from the front edge of the horizontal portion 11e towards the toe. Thus, the inclined surface of the upwardly sloping portion 11d is continuous with the horizontal surface of the horizontal portion 11e and slopes upwards towards the toe. Furthermore, the lower surface of the first layer 11 is flat.

[0043] As an example, the height H from the upper surface of the horizontal portion 11e of the mounting portion 11b to the top of the inclined surface of the upward inclined portion 11d is preferably set in the range of 7 mm or more and 22 mm or less, and is particularly preferably set in the range of 15 mm or more and 20 mm or less.

[0044] The first layer 11 is formed by making a cut along the length direction from approximately the center of the toe side end of the plate-shaped member, passing slightly outward from the front clog portion 21 of the clog 20, and passing slightly towards the toe side from the heel side edge of the mounting portion 11b, and then cutting further along the length direction to the heel missing portion 11a.

[0045] The downward sloping portion 11f of the first layer 11 is formed between the heel-missing portion 11a, the mounting portion 11b, and the little toe-side missing portion 11c in the footrest 10. The downward sloping portion 11f slopes downward from the upper surface of the mounting portion 11b toward the upper surface of the second layer 12. The bottom region of the downward sloping portion 11f is adjacent to the upper surface of the little toe-side side portion 12b1, which is part of the little toe-side flat portion 12b of the second layer 12.

[0046] The second layer 12 is a flat, plate-like component that, when viewed from above, mimics the overall outline of the foot's outer perimeter. The lower surface of the second layer 12 is formed into a rough surface composed of wavy, uneven surfaces. Therefore, the second layer 12 is less prone to slipping relative to the ground. A portion of the upper surface of the second layer 12 engages with the lower surfaces of the mounting portion 11b and the downward inclined portion 11f of the first layer 11. The upper surfaces of the heel-side flat portion 12a and the little toe-side flat portion 12b of the second layer 12 are exposed, corresponding respectively to the lower surfaces of the heel-side missing portion 11a and the little toe-side missing portion 11c of the first layer 11.

[0047] Here, a portion of the little toe-side flat portion 12b, and the portion near the outer side of the foot platform 10, is referred to as the little toe-side portion 12b1. The upper surface of the little toe-side flat portion 12b is continuous with the upper surface of the heel-side flat portion 12a, and connects at the position of the little toe-side portion 12b1.

[0048] When the user places their foot on the footrest 10, the sole of the user's foot abuts against the support portion 11b. On the other hand, the sole of the foot separates from the footrest 10 at the heel-less portion 11a, the little toe-side-less portion 11c, and the descending inclined portion 11f. The abductor digitorum muscle of the user's foot faces the descending inclined portion 11f. However, when the user tilts their foot outward (towards the little toe), the sole of the foot can abut against the descending inclined surface of the descending inclined portion 11f.

[0049] Preferably, the first layer 11 is a double-layer structure consisting of an upper region 31 and a lower region 32. The upper region 31 and the lower region 32 are made of the same components and have the same shape when viewed from above. The upper region 31 is made of a plate-like component of uniform thickness, and the user's foot abuts against the upper surface. The upper surface of the upper region 31 is formed into a rough surface composed of fine bumps and depressions. Therefore, the user's foot is less likely to slip relative to the upper surface of the upper region 31. Furthermore, a chamfer is applied to the edge of the upper region 31 on the heel side, that is, the edge that forms the boundary with the heel-side missing portion 11a. Additionally, a chamfer is also applied to the edge of the upper region 31 on the little toe side, that is, the edge that forms the boundary with the little toe-side missing portion 11c.

[0050] The lower region 32 is bonded and fixed to the lower surface of the upper region 31. The lower region 32 is composed of a horizontal lower region 32a and a sloping lower region 32b. The horizontal lower region 32a is the portion of the upper region 31 that faces the portion of the upper region 31 that abuts against the transverse head of the adductor hallucis muscle to the heel side. The sloping lower region 32b is the portion that gradually thickens from the horizontal lower region 32a toward the toe side, and whose upper surface slopes upward from the upper surface of the horizontal lower region 32a.

[0051] By bonding and fixing the lower surface of the upper region 31 to the upper surface of the lower region 32, the upper region 31 can be fixed to the upper surface of the second layer 12 while deforming along the upper surface of the lower region 32. As a result, the upper region 31 is inclined along the lower region horizontal portion 32a and the lower region inclined portion 32b of the lower region 32, forming a horizontal portion 11e and an upward inclined portion 11d in the first layer 11.

[0052] The upper region 31 and the lower region 32 are colored with different colors. It is desirable that the colors of the upper region 31 and the lower region 32 are colors that allow them to be clearly distinguished from each other. As an example, the upper region 31 could be black, and the lower region 32 could be white. The inclined surface of the descending inclined portion 11f is formed to span from the upper region 31 to the lower region 32.

[0053] The footrest 10 is manufactured by bonding the lower surface of the first layer 11, i.e., the lower surface of the lower region 32, to the upper surface of the second layer 12. As a result, a step is formed between the upper surface of the first layer 11 and the upper surface of the second layer 12 through the heel missing portion 11a, the little toe side missing portion 11c, and the descending inclined portion 11f.

[0054] In other words, the flat portion 12a on the heel side of the second layer 12 forms the thin-walled portion of the heel of the footrest 10. That is, the thin-walled portion 12a is the part of the footrest 10 that is opposite to the user's heel and has a reduced thickness.

[0055] In other words, the flat portion 12b on the little toe side of the second layer 12 and the downward sloping portion 11f of the first layer 11 form the thin-walled portion on the little toe side of the footrest 10. That is, the thin-walled portion on the little toe side is the part of the footrest 10 that is opposite to the user's little toe side and has a reduced thickness.

[0056] The mounting portion 11b is surrounded by a plurality of surrounding walls. One of these surrounding walls is a first wall 11g extending from the end of the clog strap 20 on the toe side, between the inner side of the footrest 10 and the little toe side. The first wall 11g divides the mounting portion 11b from the heel notch 11a. Preferably, the first wall 11g extends in a curve that curves inward toward the heel side when viewed from above. This is the shape along the front edge of the user's heel.

[0057] Another of the multiple walls of the mounting portion 11b is a second wall 11h that divides the mounting portion 11b from the little toe side missing portion 11c. When viewed from above, the second wall 11h extends along the length of the foot platform 10 from approximately the center of the end of the foot platform on the toe side, passes a position further outward than the forefoot strap portion 21, and then passes a portion slightly closer to the toe than the edge of the heel side of the mounting portion 11b, extending in an arc to the vicinity of the little toe side.

[0058] The downward inclined portion 11f is one of the surrounding wall surfaces of the mounting portion 11b, extending along the length direction near the little toe side, connecting the first wall surface 11g and the second wall surface 11h on the little toe side. The remaining surrounding wall surfaces 11i connect the first wall surface 11g and the second wall surface 11h on the big toe side. The surrounding wall surfaces 11i overlap with the outline of the second layer 12 when viewed from above.

[0059] The clogs 20 are made of materials such as cloth or synthetic resin, and consist of a front clog portion 21 and a side clog portion 22. The front clog portion 21 extends upward from the surface of the footrest 10 and is held between the big toe and second toe of the user's foot, and is located on the upward inclined portion 11d of the first layer 11. The side clog portion 22 is made of a rope-like or strap-like component, and with the upper end of the front clog portion 21 as the base, it is divided into an inner side clog portion 22a extending towards the big toe side of the footrest 10, and an outer side clog portion 22b extending towards the little toe side.

[0060] The ends of the inner and outer cross straps 22a and 22b are fixed to the second layer 12. Specifically, the end of the inner cross strap 22a is fixed near the step between the upper surface of the first layer 11 and the upper surface of the second layer 12 of the heel gap 11a and is fixed to the big toe side. The end of the outer cross strap 22b is fixed near the step between the upper surface of the first layer 11 and the upper surface of the second layer 12 of the heel gap 11a and is fixed to the little toe side. Thus, when the user walks in the shoe, the significant separation between the user's foot and the heel gap 11a can be reduced, thereby facilitating walking in the shoe 1.

[0061] Next, we will describe the state of the user wearing shoe 1.

[0062] The user puts on the shoe 1 by passing his foot through the clogs 20 and clamping the front clog portion 21 between the user's big toe and second toe.

[0063] With the user wearing shoe 1, the user's middle toe, ring toe, little toe, and their root portions, the transverse head of the adductor hallucis muscle located near the heel relative to these root portions, and the lateral portion of the arch of the flexor digitorum brevis muscle, are opposite to the missing portion 11c on the little toe side. That is, when the foot is divided into a toe side and a heel side near the arch, and the toe side is further divided into a big toe side (medial) and a little toe side (lateral), the lateral half of the toe side is approximately opposite to the missing portion 11c on the little toe side. Furthermore, the user's entire heel is opposite to the missing portion 11a on the heel side. Additionally, since the descending slope 11f is formed on the little toe side (lateral) near the boundary between the arch and the heel, the portion of the user's abductor digitorum muscle is opposite to the descending slope 11f.

[0064] That is, when a user wears the shoe 1, since the entire little toe side portion of the sole is in a floating state, the little toe side portion of the sole is prone to move downward. Moreover, since the outer side of the user's sole moves downward, the user's knee is prone to open outward. As a result, the inwardly twisted state of the knee can be restored to the original state.

[0065] In this way, according to the shoe 1 of the first embodiment, especially when worn by a person who often wears high-heeled shoes such as high-heeled shoes, the center of gravity can be moved backward, and the inner torsion of the knee can be restored to the original state. In addition, by restoring the inner torsion of the knee to the original state, the expanded pelvis can be restored to the original state. The pelvis is connected to the spine through the sacrum, and by moving the center of gravity backward, the spine can be restored to its original S-shape. When the spine returns to a normal state, the position of the head follows the line of the spine, so that the cervical vertebra can be restored from the forward leaning state to the original state, thereby correcting the straightening of the physiological curvature of the cervical vertebra. As a result, the bone distortion can be restored to the original state, and the pain in the feet and neck can be reduced.

[0066] In addition, when the physiological curvature of the cervical vertebra becomes straight, the thin fascia wrapping the skull is in a state of being pushed upward, which leads to relaxation of the expression muscles and a feeling of sagging of the entire face. According to the shoe 1 of the first embodiment, by restoring the cervical vertebra from the straightening of the physiological curvature of the cervical vertebra to the normal state, the effects of eliminating facial sagging and achieving face slimming can be expected.

[0067] In addition, when the outer side of the user's sole moves downward, it first abuts against the descending inclined portion 11f, thereby restricting excessive downward movement of the outer side of the user's sole. Therefore, walking is easier. In addition, the inclination angle x of the descending inclined portion 11f can be set in the range of 0°<x≤90°, but if the inclination is too small, the movement amount of the outer side of the user's sole becomes small, and it is difficult to obtain the effect of restoring the inner torsion of the knee to the original state. Conversely, if the inclination is too large, the footrest 10 is likely to be dislocated relative to the sole, which may make walking difficult. Therefore, the inclination of the descending inclined portion 11f is preferably in the range of 30°≤x≤60°.

[0068] In addition, by consciously walking with the outer part of the sole opposite the little toe side missing portion 11c not contacting the ground, the user can correct the center of gravity of the leg inward, and if the user is bowlegged, the distance between the knees of the user can also be narrowed.

[0069] In addition, when the user wears the shoe 1, since the inner transverse instep strap portion 22a of the instep strap 20 passes through the root of the user's big toe and the outer transverse instep strap portion 22b passes through the instep of the user, the shoe 1 is not easy to fall off from the user's foot.

[0070] Furthermore, since the forefoot strap 21 is positioned on the upward sloping portion 11d, the user's big toe, second toe, and the base of their toe abut against the sloping surface of the upward sloping portion 11d. As a result, the portion of the user's big toe, second toe, and the base of their toe is positioned above the upper surface of the horizontal portion 11e.

[0071] In this way, because the big toe, second toe, and the base of the toe are positioned higher than other parts of the foot, the heel side easily moves downward, and the center of gravity easily shifts backward, thus preventing the user from leaning forward. Even after a period of time, if the spine tilts forward and the user attempts to lean forward, the big toe, second toe, and the base of the toe support the upward tilting portion 11d, preventing further forward leaning. Even if the user does lean forward, the spine can be restored to its vertical direction relative to the ground. This corrects the user's posture.

[0072] Furthermore, because it's less likely to lean forward, the duration of facial postures where gravity acts on the face, such as when looking down, is shortened. This reduces facial swelling and can potentially lead to a slimmer face. Moreover, by correcting this forward-leaning posture, the eyes are relieved of pressure from the fascia, thus alleviating eye strain. Additionally, correcting the forward-leaning posture can also improve walking posture, make it easier to lift the feet, reduce shoulder stiffness, and improve blood flow to the back of the neck.

[0073] Furthermore, according to the first embodiment, the height H from the upper surface of the horizontal portion 11e to the top of the inclined surface of the upward inclined portion 11d is set in the range of 7 mm or more and 22 mm or less. Here, if the height H is too low, it is difficult to move the spine line backward; conversely, if it is too high, the spine line may move excessively backward in a normal posture. Therefore, as in the first embodiment, when the height H is in the range of 7 mm or more and 22 mm or less, when the user is in a forward-leaning posture and the spine line is tilted forward, the spine line can be moved backward and corrected to a straight state relative to the ground. More preferably, by setting the height H to 15 mm or more and 20 mm or less, stable correction can be performed when the user is in a forward-leaning posture and the spine line is tilted forward.

[0074] Furthermore, among users, there are those who habitually walk with their weight on the heel side (heel-strike walkers) and those who habitually walk with their weight on the toe side (toe-strike walkers). Heel-strike walkers can correct their center of gravity forward by consciously walking with their heels not touching the upper surface of the second layer 12. Conversely, toe-strike walkers can correct their center of gravity backward by walking with their heels touching the upper surface of the second layer 12. Thus, shoe 1 can correct the walking posture of both heel-strike and toe-strike walkers.

[0075] Furthermore, because the stepped portion formed by the heel notch 11a is arc-shaped, it can stimulate the arch area near the arc-shaped heel portion when walking. Moreover, because the portion between the heel notch 11a and the little toe side notch 11c of the first layer 11 is thin, it can stimulate the side of the arch when the user moves the outer part of the foot up and down. Therefore, stimulating acupoints on the sole of the foot can be expected to bring health benefits.

[0076] Furthermore, by bonding and fixing the lower surface of the upper region 31 to the upper surface of the lower region 32 while the upper region 31 is deformed along the inclined portion 32b of the lower region, an upwardly inclined portion 11d is formed in the first layer 11. Therefore, by bonding and fixing the upper region 31, which has been processed to form anti-slip portions such as unevenness on its surface (upper surface), to the lower region 32, it is easy to manufacture a first layer 11 in which anti-slip portions such as unevenness are formed on the surface (upper surface) of the upwardly inclined portion 11d.

[0077] Furthermore, since the upper region 31 and the lower region 32 are colored differently, when the shoe 1 is viewed from the side, the lower region 32 is thickened towards the toe, which visually emphasizes to the user the impression that the area supporting the big toe is high.

[0078] [Second Implementation]

[0079] Figure 4 This is a perspective view showing the appearance of the shoe 2 according to the second embodiment of the present invention. Figure 5 yes Figure 4 Top view. Figure 6 yes Figure 4 Side view. Shoe 2 is a so-called beach sandal, featuring a platform 10 and straps 25. Additionally, Figures 4-6 The shoe 2 worn on the user's left foot is shown. The shoe 2 worn on the right foot is symmetrical to the shoe 2 worn on the left foot, so a detailed description of the shoe 2 worn on the right foot is omitted.

[0080] In the second embodiment, the shoe 2 has the clogs 25 installed on the footrest 10, instead of... Figures 1-3The shoe 1 shown in the first embodiment has a clog strap 20. The footrest 10 is the same as in the first embodiment.

[0081] Like the clogs 20, the clogs 25 are made of, for example, cloth or synthetic resin, and consist of a front clog portion 26 and a side clog portion 27. The front clog portion 26 extends upward from the surface of the footrest 10 and is held between the big toe and second toe of the user's foot. It is positioned on the upward inclined portion 11d of the first layer 11, similar to the clogs 20. The side clog portion 27 is made of a rope-like or strap-like component and extends towards the inner side of the footrest 10 from the upper end of the front clog portion 26 as its base.

[0082] The end of the cross strap 27 is fixed to the heel-missing portion 11a on the first layer 11 and to the corner on the big toe side. That is, the clog 25 is formed by removing the outer cross strap 22b from the clog 20 and placing the end of the inner cross strap 22a on the first layer 11.

[0083] According to the second embodiment of the shoe 2, similar to the shoe 1, when the user wears the shoe 2, the little toe side of the user's foot faces the little toe side missing portion 11c, the downward sloping portion 11f, and the heel missing portion 11a. At this time, the little toe side of the user's foot is in a state where it is easy to move downwards, and because there is no cross strap on the instep of the user's little toe side, the little toe side of the user's foot is easy to leave the first layer 11. Therefore, in order to maintain posture, the user will try to grip the first layer 11 using the abductor digitorum and other muscles through the arched structure near the arch of the foot. By having the user wear the shoe 2, this gripping action can be promoted, and as a result, the user's bones can be guided to move towards a normal position.

[0084] Furthermore, although the cross strap 27 is only one piece resting on the instep on the side of the big toe, its end is positioned on the first layer 11 and becomes shorter. Therefore, the cross strap 27 can be reliably resting on the instep on the side of the big toe. As a result, the length of the footrest 10 away from the user's foot can be reduced during walking, thus improving walking stability.

[0085] While embodiments of the present invention have been described above, the embodiments of the present invention are not limited to those described above. For example, the above embodiments were described using beach sandals as an example, but they can also be applied to flip-flops. Furthermore, the footplate is made of rubber, EVA polyurethane, or the like, but the material of the footplate is not limited to these. For example, it can also be made of wood.

[0086] Furthermore, in the embodiments of the present invention, the footrest 10 is formed as a double layer, but it can also be a single layer (single board) as long as a thin-walled portion with reduced thickness is formed in the portion of the footrest opposite the half of the outer side of the user's toe and the portion opposite the heel. Additionally, the first layer 11 and the second layer 12 can each be composed of multiple layers. Furthermore, although the first layer 11 is shown as a double-layer structure, it can also be a single layer (single board).

[0087] Explanation of reference numerals in the attached figures

[0088] 1 and 2 shoes

[0089] 10 foot platforms

[0090] 11 First Floor

[0091] 11a Missing heel

[0092] 11b Toe area

[0093] 11c Little toe side missing portion

[0094] 11d Upward Inclined Section

[0095] 11e Horizontal section

[0096] 11f Downward Inclined Section

[0097] 12 Second layer

[0098] 12a Flat side of the heel (thin wall of the heel)

[0099] 12b Flat side of the little toe

[0100] 12b1 Side of the little toe

[0101] 20 and 25 clogs

[0102] 21, 26 Front hoof straps

[0103] 22, 27 Horizontal Strap Section

[0104] 22a Inner side cross strap

[0105] 22b Outer side strap

[0106] 31 Upper region

[0107] 32 Lower region

[0108] 32a Lower horizontal section

[0109] 32b Lower region inclined section

Claims

1. A shoe, characterized in that, The footrest (10) is equipped with: a heel wall portion (12a) with a reduced thickness at the part opposite to the user's heel; a little toe side wall portion (12b, 11f) with a reduced thickness at the part opposite to the user's little toe side; and a support portion (11b) formed at the part other than the heel wall portion (12a) and the little toe side wall portion (12b, 11f) to support the user's foot. The thin-walled portions (12b, 11f) on the little toe side are composed of a flat portion (12b) on the little toe side and a downwardly inclined portion (11f). The flat portion on the little toe side (12b) is the part of the foot that, when the user is wearing shoes, is at least opposite to the user's ring toe, little toe, and their root portions, as well as the portion of the adductor hallucis muscle located near the heel relative to the root portions. The downward-sloping portion (11f) is located opposite the abductor digitorum brevis muscle of the user's foot when the user is wearing shoes. It slopes downward from the upper surface of the mounting portion (11b) toward the upper surface of the flat portion on the little toe side (12b). The upper surface of the flat portion (12b) on the little toe side is continuous with the upper surface of the thin-walled portion (12a) on the heel.

2. The shoe as described in claim 1, characterized in that, The shoe also has a clog (20) mounted on the foot platform (10), the clog (20) consisting of a front clog portion (21) that can be held between the big toe and the second toe of the foot and a horizontal clog portion (22) that rests on the instep.

3. The shoe as described in claim 2, characterized in that, The cross strap (22) has an outer cross strap (22b) that rests on the little toe side of the instep and an inner cross strap (22a) that rests on the big toe side of the instep. The outer side strap (22b) and the inner side strap (22a) extend from the front strap (21) and are attached at their ends to the heel thin wall (12a).

4. The shoe as described in claim 2, characterized in that, The cross strap (22) extends from the front strap (21) and rests on the big toe side of the instep, but not on the little toe side.

5. The shoe as described in claim 4, characterized in that, The end of the cross strap (22) is mounted on the mounting part (11b).

Images