Weight-loss insole

Abstract

To provide a weight-loss insole which enhances the motion performance of the toes and promotes a weight-loss effect, by fixing the instep inside the shoe with the footwear and the insole while allowing the toes to move inside the footwear.SOLUTION: A weight-loss insole 1 comprises: a flexible insole body 10 which is accommodated in footwear and covers the sole of the user's foot; and a supporting protrusion 20 that is spaced apart from the front side of the insole body 10 and raised from the upper surface of the insole body 10 so as to support at least the ball of the big toe, the ball of the little toe and the heel of the sole. The supporting protrusion 20 supports the sole to be separated from the insole body 10 so that the user's toes can move. The supporting protrusion 20 is raised at least along the area from the ball of the little toe to the heel so that the outer side of the arch of the sole is elevated. When the user wears footwear in which the insole body 10 is accommodated, the instep of the foot comes into contact with the inside of the footwear.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a diet insole that is inserted into a shoe to support the foot while allowing the toes to move, thereby improving mobility and promoting a diet effect. [Background technology]

[0002] In recent years, extensive research has been conducted into shoe insoles that facilitate the movement of the toes and improve mobility during walking while ensuring stability and mobility of the body.

[0003] As an example of such a shoe insole, Patent Document 1 (conventional example) discloses an insole (shoe insole) 100, as shown in Fig. 32, which includes an insole body 160, and in which a cuboid bone support convex portion 180 and a calcaneus anterior support convex portion 190 constituting a convex portion 102 are formed on a surface (upper surface) 101A of the insole body 160. A toe ball support portion 101 that supports the first metatarsal head (ball of the big toe) and the second to fifth metatarsal heads (balls of the little toe) of the foot is formed on a rear surface (lower surface) 101B of the insole body 160, and this toe ball support portion 101 bulges downward from the rear surface (lower surface) 101B of the insole body 160. Furthermore, an insole front portion 110 is formed to be thinner and softer than toe ball support portion 101.

[0004] The anterior calcaneus support convex portion 190 supports the calcaneal tuberosity, thereby stabilizing the calcaneus. The cuboid support convex portion 180 supports the cuboid bone, thereby stabilizing the cuboid bone. The anterior insole portion 110 is thinner and softer than the ball support portion 101, allowing the toes to move easily. This allows the user to easily walk with their toes gripping the ground, thereby enhancing the effectiveness of exercise. The shape of the arch of the sole is maintained, ensuring stability and mobility of the body, while enhancing the effectiveness of exercise. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 6799881 Summary of the Invention [Problem to be solved by the invention]

[0006] However, with the conventional insole 100, the instep is not fixed inside the shoe, and the insole 100 supports only the ball of the foot and the heel, which means that the position of the foot is easily shifted relative to the insole 100, and when walking, the center of gravity shifts in the width direction of the insole 100, causing a deviation in the position of the center of gravity of the sole of the foot relative to the insole, which could result in the problem of the ball of the foot support portion 101, cuboid support protrusion 180, and anterior calcaneus support protrusion 190 not being able to provide sufficient support for the body.

[0007] This presents a risk that the sole of the foot may become misaligned relative to the insole 100, making it impossible to move the toes sufficiently, which may result in a decline in athletic performance.

[0008] The present invention has been made in view of the above-mentioned problems, and aims to provide a diet insole that fixes the instep inside the shoe using footwear and an insole, and allows the toes to move inside the footwear, thereby improving the athletic performance of the toes and promoting the diet effect. [Means for solving the problem]

[0009] The invention described in claim 1, which was made to solve the above problem, is a diet insole comprising: a flexible insole body that is stored inside footwear and covers the sole of the user's foot; and a support protrusion that is spaced from the front of the insole body and protrudes from the upper surface of the insole body so as to support at least the ball of the big toe, the ball of the little toe, and the heel of the sole of the foot; the support protrusion supports the sole of the foot at a distance from the insole body so as to allow the user's toes to move; the support protrusion protrudes from the ball of the little toe to the heel so as to raise at least the outer arch of the sole; and when the user wears the footwear containing the insole body, the instep of the foot abuts against the inside of the footwear.

[0010] According to the invention of claim 1, the support protrusion protrudes from the ball of the little toe to the heel so that the outer arch of the sole is elevated, so that it can contact and support the outer arch of the user's foot from below. This makes the user aware of the shift in center of gravity by pushing up and contacting the outer arch of the user's foot from below, suppressing imbalance in the center of gravity position, distributing weight to the ball of the big toe, ball of the little toe, and heel, thereby improving support performance.

[0011] Furthermore, by raising the support ridges in this way, the position of the instep is raised from the bottom surface of the footwear, and the instep comes into contact with the inside of the footwear, thereby preventing the foot from shifting position relative to the insole inside the footwear.

[0012] Furthermore, the support protuberances support the sole of the foot at a distance from the insole body so that the user's toes can move, allowing the toes to move while the sole is supported and fixed, improving the balance performance of the sole and improving the motor performance of the toes, thereby promoting a diet effect.

[0013] The invention described in claim 2 is a diet insole described in claim 1, characterized in that the diet insole further has an arch support portion formed on the inside of the outer arch of the foot on the upper surface of the support protuberance, formed so that its height position from the bottom surface of the insole body is higher than the support protuberance, and which supports the arch by applying acupressure.

[0014] According to the invention of claim 2, by supporting the outer side of the arch of the sole with the support protuberance and further supporting the arch with the arch support, the ball of the big toe, ball of the little toe, outer side of the arch, arch, and heel of the sole of the foot are all supported from below, and it is possible to help distribute weight to the ball of the big toe, ball of the little toe, outer side of the arch, arch, and heel. This makes it possible to correct the position of the center of gravity and further prevent the sole of the foot from shifting position relative to the insole.

[0015] Furthermore, the arch of the foot is normally raised above the lateral longitudinal arch, which can cause foot fatigue during sports. By providing an arch support section that supports the arch and raising the height of the support section from the main insole body higher than the supporting section, the arch can be supported by acupressure, reducing foot fatigue.

[0016] The invention described in claim 3 is a diet insole described in claim 2, characterized in that the arch support portion has a base portion that protrudes upward from the insole body to cover the entire arch, and a plurality of acupressure protrusions that protrude upward from the base portion to support the arch, and the acupressure protrusions protrude in such a way that their number decreases as they move toward the heel side in the longitudinal direction of the insole body.

[0017] According to the invention of claim 3, the number of acupressure protrusions on the arch support decreases toward the heel, so the contact area between the sole of the foot and the acupressure protrusions decreases from the arch to the heel. This increases the pressure from the acupressure protrusions to the sole of the foot from the arch to the heel, creating a pressure gradient that reduces pressure on the arch, which is sensitive to stimulation, and increases pressure on the sole of the foot as it approaches the heel, allowing for comfortable circulation in the foot.

[0018] Furthermore, it is expected that having too many acupressure protrusions will cause pain in the soles of the feet, but by reducing the number of acupressure protrusions toward the heel, which is closer to the center of gravity of the foot, it is possible to reduce the stimulation to the soles of the feet when using the product and reduce the risk of pain in the soles of the feet. [Effects of the Invention]

[0019] As explained above, according to the diet insole of the present invention, the support protrusions support the sole of the foot at a distance from the insole body so that the user's toes can move, allowing the toes to move while the sole is supported and fixed, improving the motor performance of the toes and promoting the diet effect. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a perspective view of a diet insole according to an embodiment of the present invention. [Figure 2] FIG. 2 is a plan view of the diet insole of FIG. 1. [Figure 3] FIG. 2 is a left side view of the diet insole of FIG. 1. [Figure 4] FIG. 2 is a right side view of the diet insole of FIG. 1. [Figure 5] FIG. 2 is a rear view of the diet insole of FIG. 1. [Figure 6] FIG. 2 is a front view of the diet insole of FIG. 1. [Figure 7] FIG. 2 is a bottom view of the diet insole of FIG. 1. [Figure 8] FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. [Figure 9] FIG. 3 is a cross-sectional view taken along line BB in FIG. 2. [Figure 10] FIG. 3 is a cross-sectional view taken along line CC in FIG. 2. [Figure 11] FIG. 3 is a cross-sectional view taken along line DD in FIG. 2. [Figure 12] FIG. 2 is a schematic diagram showing the positional relationship between the diet insole of FIG. 1 and the bones of the foot. [Figure 13] FIG. 13 is a schematic side view of the schematic view of FIG. 12 viewed from the side. [Figure 14] FIG. 1 is a plan view of a comparative insole used in a comparative experiment. [Figure 15] FIG. 1 is a side view of a comparative insole used in a comparative experiment. [Figure 16] 2 is a front view in a standing position showing a state in which a user has inserted the diet insole of FIG. 1 into footwear. FIG. [Figure 17] FIG. 17 is a schematic diagram showing the skeleton of the user of FIG. 16. [Figure 18] (a) is a foot pressure distribution diagram when subject A in a foot pressure comparison experiment wears a diet insole according to the present invention, and (b) is a foot pressure distribution diagram when subject A in a foot pressure comparison experiment wears a comparative insole. [Figure 19] (a) is a foot pressure distribution diagram of subject B in a foot pressure comparison experiment when wearing the diet insole of the present invention, and (b) is a foot pressure distribution diagram of subject B in a foot pressure comparison experiment when wearing the comparative insole. [Figure 20] (a) is a foot pressure distribution diagram when subject C in a foot pressure comparison experiment wears a diet insole according to the present invention, and (b) is a foot pressure distribution diagram when subject C in a foot pressure comparison experiment wears a comparative insole. [Figure 21] FIG. 10 is a diagram showing the results of static foot pressure distribution measurement in a foot pressure comparison experiment. [Figure 22] FIG. 10 is a diagram showing the measurement results of the vertical floor reaction force and the distance of center of gravity movement in the walking comparison experiment. [Figure 23]FIG. 10 is a diagram showing the measurement results of the force and angle at the time of kicking off in a walking comparison experiment. [Figure 24] FIG. 10 is a diagram showing measurement results of the kick-off direction angle in a walking comparison experiment. [Figure 25] 10A and 10B are diagrams showing the results of muscle activity measurement by myoelectric potential measurement in a muscle activity amount comparison experiment. [Figure 26] 10A and 10B are diagrams showing the results of a walking motion analysis in a posture comparison experiment. [Figure 27] 10A and 10B are diagrams showing posture analysis results for natural postures in a posture comparison experiment. [Figure 28] 10A and 10B are diagrams showing posture analysis results in a posture comparison experiment with the gaze fixed. [Figure 29] FIG. 1 is a schematic diagram showing an evaluation sheet used in a sensitivity test. [Figure 30] (a) is a diagram showing the results of an evaluation of the feel of using the diet insole shown in Figure 1, and (b) is a diagram showing the results of an evaluation of the feel of using an insole in which the outer part of the arch of the support ridge of the diet insole has been cut out. [Figure 31] FIG. 2 is a schematic diagram showing the correspondence between each part of the foot and acupressure points. [Figure 32] FIG. 10 is a perspective view showing an insole according to a conventional example. DETAILED DESCRIPTION OF THE INVENTION

[0021] (First embodiment) Hereinafter, a diet insole 1 according to a first embodiment of the present invention will be described with reference to the drawings.

[0022] Fig. 1 is a perspective view of a diet insole 1 according to an embodiment of the present invention, Fig. 2 is a plan view of the diet insole 1 of Fig. 1, Fig. 3 is a left side view of the diet insole 1 of Fig. 1, Fig. 4 is a right side view of the diet insole 1 of Fig. 1, Fig. 5 is a back view of the diet insole 1 of Fig. 1, Fig. 6 is a front view of the diet insole 1 of Fig. 1, and Fig. 7 is a bottom view of the diet insole 1 of Fig. 1. Fig. 16 is a front view of a user 2 of the diet insole 1 in a standing position with the diet insole 1 inserted into footwear 3.

[0023] For the sake of explanation, the longitudinal direction of the diet insole 1 is the Y-axis (the vertical direction on the paper in Figure 2), the width direction of the diet insole 1 is the X-axis (the horizontal direction on the paper in Figure 2), and the thickness direction of the diet insole 1 is the Z-axis (the front-to-back direction on the paper in Figure 2).

[0024] In addition, a pair of diet insoles 1 (left and right) are usually used for each user 2, but the basic structure of these pair of diet insoles 1 is the same, and the diet insole 1 for the left foot is symmetrical to the diet insole 1 for the right foot, so the following explanation will be mainly focused on the diet insole 1 for the right foot.

[0025] As shown in Figure 1, the diet insole 1 is housed in footwear 3 and comprises a flexible insole body 10 that covers the sole of the foot of a user 2, a support protrusion 20 that is spaced from the front side of the insole body 10 in the Y-axis direction and protrudes upward in the Z-axis direction from the top surface of the insole body 10 so as to support at least the ball of the big toe, the ball of the little toe and the heel of the sole of the foot, and an arch support part 30 that is formed on the inside of the outer arch part 26 (outer arch) on the top surface of the insole body 10 and supports the arch of the user 2.

[0026] This diet insole 1 supports the sole of the user 2 at the support ridges 20 so that the sole is spaced upward in the Z-axis direction from the insole body 10, allowing the toes of the user 2 to move. In this embodiment, the thickness of the insole body 10 is formed to vary, for example, between approximately 2.5 mm and approximately 6.0 mm, and the thickness of the support ridges 20 is formed to be, for example, approximately 2.0 mm or more. The thickness of these support ridges 20 is formed to vary slightly depending on the location. In other words, the diet insole 1 supports the sole of the user 2 at the support ridges 20 so that the sole is spaced upward in the Z-axis direction from the insole body 10 by approximately 2.0 mm.

[0027] The insole body 10 is made of a flexible material, and has a shape that can cover the sole of the foot of the user 2 so that it can be stored inside the footwear 3, for example.

[0028] The insole body 10 is constructed by attaching a lining material (top cover) made of a synthetic fiber such as polyethylene, cotton, polyester, or nylon, which is thinner than the base material, to the surface of the base material, which is made of a thermoplastic resin such as EVA (ethylene vinyl acetate) or PU (polyurethane).

[0029] By configuring the insole body 10 from a base material and a lining material in this way, it is possible to maintain the cushioning and heat insulating properties of the base material while obtaining the heat retention properties of the lining material, thereby keeping the inside of the footwear 3 warm and moisturized. This promotes sweating in the soles of the feet, improves athletic performance, and promotes weight loss effects.

[0030] A curved-up portion 11 that curves upward (in the Z-axis direction) is formed on the periphery of the insole body 10 from the arch to the heel of the user 2 in the longitudinal direction (Y-axis direction). By forming the curved-up portion 11 in this manner, the curve of the inner peripheral surface of the curved-up portion 11 of the weight loss insole 1 can more closely fit the heel of the user 2, improving the fit of the weight loss insole 1 to the heel and preventing the foot from shifting out of position relative to the weight loss insole 1 inside the footwear 3 when walking. This, combined with the effect of preventing positional shifting provided by the support ridges 20 and the arch 30, effectively prevents the foot from shifting out of position relative to the weight loss insole 1, further strengthening support for the ball of the big toe, the ball of the little toe, and the heel of the sole.

[0031] As shown in Figures 3 to 6, the curved portion 11 is formed from the arch to the heel, and the height from the bottom surface of the insole body 10 on the side adjacent to the arch (inner curved portion 114) is higher than the height on the other side (outer curved portion 112).

[0032] Specifically, the curved portion 11 has an outward curved portion 112 that covers the sole from the outside in the X-axis direction, and an inward curved portion 114 that covers the sole from the inside in the X-axis direction and faces the outward curved portion 112.

[0033] As shown in FIG. 4, the height h2 of the medial curvature portion 114 from the bottom surface of the insole body 10 is greater than the height h1 of the lateral curvature portion 112 from the bottom surface of the insole body 10.

[0034] The height h2 of the inwardly curved up portion 114 is formed higher than the height h1 of the outwardly curved up portion 112, so that the entire arch area, which is higher than the ground compared to other areas of the sole, can be covered from the sides by the inwardly curved up portion 114.

[0035] This allows the diet insole 1 to be brought into closer contact with the arch of the foot, and prevents the foot from shifting position relative to the diet insole 1 inside the footwear 3.

[0036] 1 and 2, a plurality of small holes 12 are formed penetrating from the bottom surface to the back surface of the insole body 10 at a position between the toe-side end 10a and the support protuberance 20. By forming a plurality of small holes 12 in this manner, sweat generated from the toes of feet that move a lot can pass through, reducing humidity inside the footwear 3 and preventing the toes from becoming sweaty and stuffy.

[0037] 7, a plurality of size adjustment lines 13 for adjusting the size of the insole body 10 are formed on the bottom surface of the insole body 10 at the end 10a on the toe side. The size adjustment lines 13 are formed so as to draw a parabola on the inside along the periphery of the end 10a on the toe side of the insole body 10.

[0038] In this embodiment, the size adjustment line 13 is formed by carving it into the bottom surface of the insole body 10, but the size adjustment line 13 does not have to be carved directly into the insole body 10, and may be formed, for example, by printing it on the bottom surface of the insole body 10.

[0039] The size adjustment lines 13 are formed, for example, at 0.5 cm intervals from the periphery of the toe-side end 10a of the insole body 10, and numbers representing shoe sizes (cm) (25.0, 25.5, 26.0 in this embodiment) are written on each line. Note that the outer contour of the insole body 10 in this embodiment is formed to a size corresponding to, for example, 26.5 cm.

[0040] 1, 2 and 6, the support protuberance 20 protrudes from the ball of the little toe to the heel so as to raise at least the outer arch portion 26 of the sole. The support protuberance 20 protrudes in a roughly U-shape so as to surround the arch, and the toe side of the support protuberance 20 has cutouts 22 formed at positions corresponding to the middle finger and index finger so as to form a roughly heart shape.

[0041] By forming the toe side of the support protuberance 20 into a roughly heart shape in this way, the balls of the big toe and little toe are supported by the support protuberance 20, while the cutout 22 between them allows the middle finger and index finger to move relatively freely compared to the other fingers.

[0042] Furthermore, the inclined portion 24 (curved portion) of the support protrusion 20 toward the heel portion bulges out so as to be convex in the Y-axis and X-axis directions. Specifically, the inclined portion of the support protrusion 20 bulges out so as to form a substantially angular portion, i.e., so that the change in the inclination of the tangent of the inclined portion becomes large.

[0043] Because the support protrusions 20 are bulged out in this manner, even if the heels of the user 2 are large, the support protrusions 20 can support the heels.

[0044] When the user 2 wears the footwear 3 containing the insole body 10, the height of the sole of the foot from the bottom surface of the footwear 3 increases, and the instep abuts against the inside of the footwear 3. As a result, the sole of the foot is supported by the support protrusions 20, and the instep abuts against the inside of the footwear 3, so that the foot is held inside the footwear 3 and the sole of the foot can be prevented from shifting position relative to the insole body 10.

[0045] Figure 8 is an AA cross-sectional view of the diet insole 1 of Figure 2, Figure 9 is a B-B cross-sectional view of the diet insole 1 of Figure 2, Figure 10 is a CC cross-sectional view of the diet insole 1 of Figure 2, and Figure 11 is a DD cross-sectional view of the diet insole 1 of Figure 2.

[0046] 8 to 11, the protrusion height of the support ridge 20 in the Z-axis direction from the surface of the insole body 10 (thickness of the support ridge 20) varies so that it is thicker at the outer arch portion 26. In this embodiment, the thickness of the support ridge 20 is formed to be at least, for example, 2.0 mm or more.

[0047] Here, as shown in Figures 8 and 9, the thickness of the insole body 10 on the toe side in the Y-axis direction (from the ball of the foot to the toe side) is thicker than the thickness of the support protrusion 20, and is formed to be, for example, 2.5 mm.

[0048] 8 and 10, the thickness of the insole body 10 at the position of the outer arch portion 26 is made thicker than the thickness of the support protuberance 20. In this embodiment, the thickness of the insole body 10 at the position of the arch is formed to be, for example, 5.8 mm.

[0049] 8 and 11, the thickness of the insole body 10 at the heel is greater than the thickness of the support protrusion 20. In this embodiment, the thickness of the insole body 10 at the heel is, for example, 6.0 mm.

[0050] That is, in this embodiment, the thickness of the insole body 10 varies from the end 10a on the toe side in the Y-axis direction to the heel. Specifically, the height in the Z-axis direction from the bottom surface of the diet insole 1 to the surface of the support protuberance 20 at the ball of the foot is approximately 4.5 mm (2.0 mm + 2.5 mm), the height in the Z-axis direction from the bottom surface of the diet insole 1 to the surface of the support protuberance 20 at the arch position is approximately 7.8 mm (2.0 mm + 5.8 mm), and the height in the Z-axis direction from the bottom surface of the diet insole 1 to the surface of the support protuberance 20 at the arch position is approximately 8.0 mm (2.0 mm + 6.0 mm).

[0051] By changing the thickness from the bottom surface of the diet insole 1 to the surface of the support protuberance 20 so that it becomes thicker from the toes to the heels, the position of the center of gravity of the user 2 can be corrected toward the toes, posture can be corrected, the amount of exercise can be increased, and the diet effect can be improved.

[0052] Furthermore, since the support protuberance 20 is raised from the ball of the little toe to the heel so that the outer arch portion 26 of the sole is higher, the support protuberance 20 fits closely to the sole of the user's 2, preventing the diet insole 1 from shifting position relative to the foot inside the footwear 3. Furthermore, since the support protuberance 20 is formed thicker by the amount of the protuberance height (thickness), the rigidity of the diet insole 1 at the outer arch portion 26 is improved, reducing the risk of the diet insole 1 bending and interfering with insertion into the footwear 3.

[0053] As shown in Figures 1 and 2, the arch support portion 30 has a base portion 32 that protrudes upward from the insole body 10 to cover the entire arch (the area adjacent to the outer arch portion 26), and a plurality of acupressure protrusions 34 that support the arch and protrude upward from the base portion 32.

[0054] As shown in Figures 8 and 10, the protruding height of the base portion 32 (the thickness of the base portion 32) is formed to be, for example, approximately 2.0 mm, which is almost the same as the protruding height of the support protrusion 20 from the insole body 10 (the thickness of the support protrusion 20).

[0055] As shown in FIG. 2, the acupressure protrusions 34 protrude in such a way that the number thereof decreases toward the heel side in the longitudinal direction (Y-axis direction) of the insole body 10.

[0056] The multiple acupressure projections 34 are raised to a height higher from the insole body 10 than the outer parts 26 of the ball of the big toe, ball of the little toe, heel and arch of the sole of the foot in the support protuberance 20 so as to also support the arch while the ball of the big toe, ball of the little toe, heel and arch of the sole of the foot are supported by the support protuberance 20.

[0057] 1 and 2, in this embodiment, for example, five acupressure protrusions 34 are provided. These five acupressure protrusions 34 are formed in order toward the heel side, for example, two, two, and one, so that the number decreases toward the heel side.

[0058] The acupressure protrusions 34 are formed, for example, in a disk shape. The acupressure protrusions 34 do not necessarily have to be formed in a disk shape as long as they are capable of applying acupressure to the arch of the foot, and may be formed in other shapes such as a square prism, a triangular prism, or a star shape.

[0059] 10, the height at which the acupressure protrusions 34 protrude from the base 32 (the thickness of the acupressure protrusions 34) is preferably greater than the thickness of the base 32. In this embodiment, the thickness of the acupressure protrusions 34 is, for example, approximately 3.0 mm. That is, since the thickness of the insole body 10 at this position is approximately 5.8 mm and the thickness of the base 32 is approximately 2.0 mm, the height of the protrusions 34 from the bottom surface of the diet insole 1 is, for example, approximately 10.8 mm (5.8 mm + 2.0 mm + 3.0 mm).

[0060] By increasing the height of the acupressure protrusions 34 from the bottom surface of the diet insole 1 in this way, it becomes easier for them to come into contact with the arch of the foot, and acupressure on the arch can be performed effectively.

[0061] According to the diet insole 1 of this embodiment, the support protuberance 20 protrudes from the ball of the little toe to the heel so as to raise the outer side of the arch of the sole, and can therefore contact and support the outer side of the arch of the sole of the user 2 from below. This makes the user 2 aware of the shift in center of gravity by pushing up and contacting the outer side of the arch of the sole from below, suppressing deviation in the center of gravity position, and shifting the center of gravity to the ball of the big toe, ball of the little toe, and heel, thereby improving support performance.

[0062] Furthermore, by raising the support protuberance 20 in this manner, the position of the instep is raised from the bottom surface of the footwear 3, and the instep comes into contact with the inside of the footwear 3. This makes it possible to prevent the foot from shifting position relative to the insole body 10 inside the footwear 3.

[0063] Furthermore, the support protuberances 20 support the sole of the user 2 at a distance from the insole body 10 so that the toes of the user 2 can move, allowing the toes to move with the sole supported and fixed, improving the motor performance of the toes with the balance performance of the sole improved, and promoting the diet effect of the user 2.

[0064] Furthermore, diet insole 1 supports the outer side of the arch of the sole with support protuberance 20, and further supports the arch with arch support 30, thereby supporting the entire sole of the foot, including the ball of the big toe, ball of the little toe, outer side of the arch, arch, and heel, from below, and distributing the weight over the entire sole of the foot, including the ball of the big toe, ball of the little toe, outer side of the arch, arch, and heel. By distributing the weight of user 2 over the entire sole in this way, the entire sole, including the arch, comes into contact with diet insole 1, increasing the frictional force of diet insole 1 against the sole, and further preventing the sole of the foot from shifting position relative to the insole.

[0065] Furthermore, the arch of the foot is normally raised above the lateral longitudinal arch, which can cause foot fatigue during sports. By providing arch support 30 that supports the arch and making its protrusion higher from the insole body than support protrusion 20, the arch can be supported and foot fatigue can be reduced.

[0066] Furthermore, in the diet insole 1, the number of acupressure protrusions 34 on the arch support portion 30 decreases toward the heel, so the contact area between the sole of the foot and the acupressure protrusions 34 decreases from the arch toward the heel. This causes the pressure from the acupressure protrusions 34 to the sole of the foot to increase from the arch toward the heel, creating a pressure gradient that reduces pressure on the arch, which is sensitive to stimulation, and increases pressure on the sole of the foot as it approaches the heel, thereby comfortably easing blood circulation in the foot.

[0067] Furthermore, it is expected that having too many acupressure protrusions 34 will cause pain in the soles of the feet, but by decreasing the number of acupressure protrusions 34 toward the heel, which is closer to the center of gravity of the foot, it is possible to reduce the stimulation to the soles of the feet when using the product and reduce the risk of pain in the soles of the feet.

[0068] Next, how to use the diet insole 1 will be described.

[0069] The user 2 takes out the insole stored in the footwear 3, puts the taken-out insole on the diet insole 1, and cuts the diet insole 1 along the edge of the taken-out insole with scissors or the like.

[0070] As shown in Fig. 7, a size adjustment line 13 is drawn on the bottom surface of the diet insole 1. The user 2 can adjust the size of the diet insole 1 using the size adjustment line 13 as a guide.

[0071] Then, the size-adjusted diet insole 1 is inserted into the footwear 3.

[0072] In this state, the user 2 puts on the footwear 3, and if there are shoelaces or the like, tightens the shoelaces to bring the top of the foot into contact with the inside of the shoe.

[0073] In this way, the user 2 can use the diet insole 1.

[0074] The diet insole 1 of this embodiment allows the user 2 to adjust the size of the insole body 10 to fit their own shoe size by cutting the insole body 10 along the size adjustment lines 13 with scissors or the like. That is, the diet insole 1 of this embodiment can accommodate multiple sizes, 25.0 cm, 25.5 cm, 26.0 cm, and 26.5 cm, with one insole body 10, by cutting along the size adjustment lines 13 or using it as is.

[0075] In this way, the insole body 10 can be adjusted to a plurality of sizes by cutting it or the like, and can be processed to fit the desired size and stored inside the footwear 3.

[0076] Next, the positional relationship between the diet insole 1 and the bones of the foot will be described.

[0077] Figure 12 is a front view showing the positional relationship between the diet insole 1 and the bones of the foot, Figure 13 is a bottom view showing the positional relationship between the diet insole 1 and the bones of the foot, and Figure 31 is a schematic diagram showing the correspondence between each part of the foot and acupressure points.

[0078] 12 and 13, the leg bones of user 2 are depicted as virtual lines (two-dot chain lines).

[0079] As shown in Figures 12 and 13, the support ridges 20 support the metatarsals 41, sesamoid bones 42, cuboid bone 43 and calcaneus 44 from below.

[0080] The support protuberance 20 protrudes from the top surface of the insole body 10, spaced apart from the toe-side end 10a of the insole body 10, and is formed so that the thickness of the support protuberance 20 is at least approximately 2.0 mm or more.Therefore, when the support protuberance 20 supports the sesamoid bones 42 and metatarsal bones 41 on the sole of the foot, the proximal phalanx 45, middle phalanx 46, and distal phalanx 47 can move forward of the support protuberance 20.

[0081] Furthermore, as shown in Figure 13, the cuneiform bone 48 of the foot is normally off the ground, but because the arch support portion 30 is raised higher than the support protuberance 20, the cuneiform bone 48 and navicular bone 49 can be supported by the arch support portion 30.

[0082] As shown in Figure 31, there are acupressure points at the arch of the foot that correspond to the stomach, solar plexus, pancreas, and duodenum. The acupressure protrusions 34 on the arch support 30 apply acupressure to these acupressure points, which correspond to the stomach, solar plexus, pancreas, and duodenum, and massage the sole of the foot. This promotes blood circulation and improves physical condition.

[0083] In the diet insole 1 of this embodiment, the support ridges 20 support the sesamoid bones 42 and metatarsals 41 on the sole of the foot, thereby fixing the foot in the footwear 3, and by allowing the proximal phalanx 45, middle phalanx 46 and distal phalanx 47 to move forward of the support ridges 20, the athletic performance of the toes can be improved, balance can be improved and dieting can be promoted, and the acupressure protrusions 34 can apply acupressure to the arch of the foot, stimulating the pressure points on the foot, promoting blood circulation and improving physical condition.

[0084] Next, experiments were conducted to compare the foot pressure distribution, which is the distribution of foot pressure that the sole of the foot exerts on the diet insole 1 when wearing the diet insole 1, the angle and force at the time of kicking off, myoelectric potential measurements, and posture inclination, with those when using the comparative insole 200.

[0085] Figure 14 is a plan view of the comparative insole 200 used in the comparative experiment, Figure 15 is a side view of the comparative insole 200 used in the comparative experiment, Figure 16 is a front view of a user 2 in a standing position with the diet insole of Figure 1 inserted into footwear 3, and Figure 17 is a schematic diagram showing the skeleton of user 2 of Figure 16.

[0086] <Initial conditions> The diet insole 1, the comparative insole 200, an insole-type pressure distribution measuring device (not shown) that can be inserted inside the footwear 3, and a myoelectric potential measuring device (not shown) that can be worn on the body of the subject were used.

[0087] The insole-type pressure distribution measuring device has a built-in pressure sensor that can measure pressure over the entire surface, and is configured to be able to transmit data such as measured pressure to a terminal via wireless communication or other methods.

[0088] The myoelectric potential measuring device is attached to the body of a subject to measure the amount of muscle activity, and is configured to be able to transmit the measurement data to a terminal.

[0089] The data was analyzed using a terminal that received data from the insole-type pressure distribution measuring device and the electromyography device.

[0090] 14 and 15, a comparative insole 200 having a flat bottom and surface was used in the comparative experiment. The comparative insole 200 was made of a resin sponge or the like.

[0091] The experiment was conducted by inserting a diet insole 1 or a comparative insole 200 inside the footwear 3 with an insole-type pressure distribution measuring device inserted inside the footwear 3, and measuring pressure data while three subjects A, B, and C were standing and walking while wearing the footwear 3.

[0092] Next, we will explain the experimental results for foot pressure distribution, angle and force at the time of kicking off, and posture inclination.

[0093] <Foot pressure distribution (foot pressure comparison experiment)> Fig. 18(a) is a foot pressure distribution diagram of subject A in the foot pressure comparison experiment when wearing the diet insole according to the present invention, (b) is a foot pressure distribution diagram of subject A in the foot pressure comparison experiment when wearing comparative insole 200, Fig. 19(a) is a foot pressure distribution diagram of subject B in the foot pressure comparison experiment when wearing the diet insole according to the present invention, (b) is a foot pressure distribution diagram of subject B in the foot pressure comparison experiment when wearing comparative insole 200, Fig. 20(a) is a foot pressure distribution diagram of subject C in the foot pressure comparison experiment when wearing the diet insole according to the present invention, and (b) is a foot pressure distribution diagram of subject C in the foot pressure comparison experiment when wearing comparative insole 200. Fig. 21 is a diagram showing the static foot pressure distribution measurement results in the foot pressure comparison experiment.

[0094] In this experiment, static foot pressure distribution measurements were performed on the left and right feet of three subjects A, B, and C wearing the diet insole 1 and the comparative insole 200.

[0095] In Figures 18 to 20, the numbers written on the soles indicate the pressure (kPa) exerted on the insole from each part of the sole of the foot when each subject was standing.

[0096] As shown in Figures 18(a) and (b), when subject A wore the comparative insole 200, the pressure exerted from the sole of the foot on the comparative insole 200 was greater on the heel than on other areas, but when subject A wore the diet insole 1, the pressure exerted from the sole of the foot on the diet insole 1 decreased at the heel and increased at the ball of the big toe, ball of the little toe, the area from the ball of the little toe to the heel, and the arch support area 30.

[0097] In other words, by wearing the diet insole 1, the pressure that was applied to the heel when wearing the comparative insole 200 is distributed to the ball of the big toe, the ball of the little toe, the part from the ball of the little toe to the heel, and the arch support part 30.

[0098] As shown in Figures 19(a) and (b), when subject B wore the comparative insole 200, the pressure exerted from the sole of the foot on the comparative insole 200 was greater on the heel than on other areas, but when subject B wore the diet insole 1, the pressure exerted from the sole of the foot on the diet insole 1 decreased at the heel and increased at the ball of the big toe, ball of the little toe, the area from the ball of the little toe to the heel, and the arch support area 30.

[0099] In other words, by wearing the diet insole 1 in the same way as subject A, subject B also distributed the pressure that was on the heel when wearing the comparative insole 200 to the ball of the big toe, the ball of the little toe, the area from the ball of the little toe to the heel, and the arch support part 30.

[0100] As shown in Figures 20(a) and (b), when subject C wore the comparative insole 200, the pressure exerted from the sole of the foot on the comparative insole 200 was greater on the heel than on other areas, but when subject C wore the diet insole 1, the pressure exerted from the sole of the foot on the diet insole 1 remained almost unchanged at the heel and ball of the little toe, but increased at the ball of the big toe, the area from the ball of the little toe to the heel, and the arch support area 30.

[0101] That is, when subject C wore the comparative insole 200, pressure was mainly applied to the heel, but when he wore the diet insole 1, pressure was applied not only to the heel but also to the ball of the big toe, the area from the ball of the little toe to the heel, and the arch support part 30.

[0102] In Figure 21, the values ​​of the maximum pressure point and contact area were calculated. The maximum pressure point is the point on the sole of the foot where the pressure value for each part of the insole is the largest. In addition, the increase rate (%) of the maximum pressure and contact area of ​​diet insole 1 compared to comparative insole 200 was calculated by [{(value of diet insole 1) - (value of comparative insole 200)} / (value of comparative insole 200)] x 100 (%).

[0103] 21, when subjects A, B, and C wore the diet insole 1, the pressure at the maximum pressure point increased by an average of 28.2% compared to when they wore the comparative insole 200. Also, when subjects A, B, and C wore the diet insole 1, the contact area between the soles of their feet and the insole decreased by an average of 10.2% compared to when they wore the comparative insole 200.

[0104] In other words, with the diet insole 1 of this embodiment, the raised support portion 20, arch support portion 30, and curved portion 11 can distribute the pressure from the sole of the foot to the insole, which was mainly applied to the heel, to the ball of the big toe, the ball of the little toe, the part from the ball of the little toe to the heel, and the arch of the foot.

[0105] Furthermore, as shown in Figures 18(a), 19(a) and 20(a), the pressure is greatest in the arch area of ​​the left foot of subject A and both feet of subjects B and C, which means that the arches of subjects A, B and C are stimulated the most by the arch support portion 30.

[0106] In other words, according to the diet insole 1 of this embodiment, multiple acupressure protrusions 34 protrude from the arch support portion 30, thereby reducing the contact area between the arch of the foot and the insole, and increasing the pressure when the acupressure protrusions 34 press on the arch of the foot, thereby achieving a sufficient acupressure effect.

[0107] <Center of gravity shift, kicking angle and force during walking (walking comparison experiment)> In this experiment, three subjects A, B, and C were asked to wear the diet insole 1 and the comparative insole 200, and the vertical floor reaction force and center of gravity movement distance of both the left and right feet were measured, the force and kicking angle at the time of kicking off were measured, the kicking direction angle was measured, and muscle activity was measured using electromyography.

[0108] Figure 22 shows the measurement results of the vertical floor reaction force and the distance of center of gravity movement in the walking comparison experiment, Figure 23 shows the measurement results of the force and angle at the time of kicking off in the walking comparison experiment, and Figure 24 shows the measurement results of the angle of the kicking direction in the walking comparison experiment.

[0109] 22 and 23, the increase rate (%) of the values ​​of diet insole 1 relative to the values ​​of comparative insole 200 for the vertical floor reaction force, center of gravity movement distance, force at the time of kicking off, and kicking off angle was calculated by [{(value of diet insole 1)-(value of comparative insole 200)} / (value of comparative insole 200)] x 100(%). Also, as shown in Fig. 24, the difference in the kicking direction angle between the value of diet insole 1 and the value of comparative insole 200 was calculated by (value of diet insole 1)-(value of comparative insole 200).

[0110] 22, when the subjects A, B, and C wore the diet insole 1, the vertical ground reaction force decreased by an average of 2.4% compared to when they wore the comparative insole 200. Furthermore, when the subjects A, B, and C wore the diet insole 1, the distance of movement of the center of gravity was reduced by an average of 7.4% compared to when they wore the comparative insole 200.

[0111] 23, the force at the time of push-off of the three subjects A, B, and C decreased by an average of 3.3% when wearing the diet insole 1 compared to when wearing the comparative insole 200. Furthermore, the push-off angle of the three subjects A, B, and C increased by an average of 1.7% when wearing the diet insole 1 compared to when wearing the comparative insole 200.

[0112] In Figure 24, the kick-off angle (°) is indicated as a plus (+) in the left direction and a minus (-) in the right direction. As shown in Figure 24, when subjects A, B, and C wore the diet insole 1, the average difference in the kick-off angle increased by 2.1° to the left on the right foot and 0.1° to the right on the left foot compared to when they wore the comparative insole 200. This is thought to mean that wearing the diet insole 1 shifted the body's center of gravity toward the ball of the big toe, the ball of the little toe, and the heel.

[0113] In this way, by wearing the diet insole 1 of this embodiment, the angle to the left of the right foot increases, and the angle to the right of the left foot increases, so that the force component to the left of the right foot and the force component to the right of the left foot both increase, further stimulating the inner arch of the foot.

[0114] <Electromyography measurement> In this experiment, three subjects A, B, and C were subjected to measurement of muscle activity by electromyography when they wore the diet insole 1 and when they wore the comparative insole 200.

[0115] In this experiment, to measure the muscle activity of the rectus abdominis, erector spinae, and gastrocnemius muscles of three subjects A, B, and C, electromyography devices were attached to the abdomen, back, and calf, and the electromyography was measured at each position.

[0116] FIG. 25 is a diagram showing the results of measuring the amount of muscle activity by measuring myoelectric potential in a muscle activity amount comparison experiment.

[0117] As shown in Figure 25, the increase rate (%) of muscle activity for diet insole 1 relative to the value for comparative insole 200 was calculated by [{(value for diet insole 1) - (value for comparative insole 200)} / (value for comparative insole 200)] x 100 (%).

[0118] As shown in Figure 25, when subject A wore the diet insole 1, compared to when subject A wore the comparative insole 200, the muscle activity of the gastrocnemius muscle of subject A increased by 6.0%, the muscle activity of subject B's rectus abdominis muscle increased by 3.5% and the muscle activity of subject B's erector spinae muscle increased by 1.7%, and the muscle activity of subject C's erector spinae muscle increased by 5.5% and the muscle activity of subject C's gastrocnemius muscle increased by 6.7%.

[0119] In other words, by wearing the diet insole 1 of this embodiment, although there were individual differences between subjects A, B, and C, it was possible to obtain the effect of enhancing the posture correction effect by at least one or two of the rectus abdominis, gastrocnemius, and erector spinae muscles.

[0120] <Posture angle> In this experiment, three subjects A, B, and C were asked to wear the diet insole 1 and the comparative insole 200, and we performed a movement analysis of both the left and right feet while walking, a posture analysis in a natural posture, and a posture analysis with the gaze fixed.

[0121] FIG. 26 shows the results of motion analysis during walking in the posture comparison experiment, FIG. 27 shows the results of posture analysis in a natural posture in the posture comparison experiment, and FIG. 28 shows the results of posture analysis in a fixed gaze state in the posture comparison experiment.

[0122] Knee "vibration" was evaluated by the difference H1 (cm) in the height of the left and right knees relative to the waist when standing, as shown in Figures 16 and 17. Pelvic vibration was also calculated, similarly to knee vibration, by the difference H2 (cm) in the height of the left and right pelvis relative to the waist when standing. Acromion vibration was calculated by the difference H3 (cm) in the height of the left and right acromions relative to the waist when standing. Foot (heel) vibration was also calculated by the difference H4 (cm) in the height of the left and right feet (heels) relative to the waist when standing.

[0123] 26 and 28, the increase rate (%) of the values ​​of diet insole 1 relative to the values ​​of comparative insole 200 for acromion deflection H3, pelvic deflection H2, knee deflection H1, foot (heel) deflection H4, tilt relative to the waist (degree of forward lean) when standing with gaze fixed, tilt of the shoulder line, and tilt of the pelvis was calculated by [{(value of diet insole 1) - (value of comparative insole 200)} / (value of comparative insole 200)] x 100 (%). Also, as shown in Fig. 27, the difference between the values ​​of diet insole 1 and comparative insole 200 for the tilt of the body relative to the waist (degree of forward lean), tilt of the shoulder line, and tilt of the pelvis when standing in a natural posture was calculated by (value of diet insole 1) - (value of comparative insole 200).

[0124] As shown in Figure 26, when subjects A, B, and C wore the diet insole 1, compared to when they wore the comparative insole 200, the acromion deflection H3, pelvic deflection H2, knee deflection H1, and foot (heel) deflection H1 on average for the three subjects were reduced by 4.7% for acromion deflection H3, 20.2% for pelvic deflection H2, 38.3% for knee deflection H1, and 12.5% ​​for foot (heel) deflection H4.

[0125] As shown in Figure 27, when subjects A, B, and C wore the diet insole 1, the standing tilt (degree of forward lean), shoulder line tilt, and pelvic tilt in a natural posture were reduced by an average of 0.1°, shoulder line tilt by 1.0°, and pelvic tilt by 1.2° compared to when they wore the comparative insole 200.

[0126] As shown in Figure 28, when subjects A, B, and C wore diet insole 1, compared to when they wore comparative insole 200, the standing tilt (degree of forward lean), shoulder line tilt, and pelvic tilt when they fixed their gaze were on average for the three subjects, with the standing tilt (degree of forward lean) remaining unchanged, the shoulder line tilt increasing by 0.1%, and the pelvic tilt decreasing by 0.1%.

[0127] In other words, by wearing the diet insole 1, the posture improvement effect was also obtained in that the tilt (degree of forward lean) of subjects A, B, and C when standing in a natural posture, the tilt of the shoulder line, and the tilt of the pelvis all decreased.

[0128] Furthermore, by wearing diet insole 1, there was no significant change in the tilt (degree of forward lean) of subjects A, B, and C when standing with their gaze fixed, the tilt of their shoulder line, or the tilt of their pelvis, but there was a slight decrease in the tilt of their pelvis.

[0129] By wearing the diet insole 1 of this embodiment, the acromion deflection H3, pelvis deflection H2, knee deflection H1, and foot (heel) deflection H4 were all significantly reduced, resulting in a posture improvement effect. Furthermore, the tilt (degree of forward lean), shoulder line tilt, and pelvic tilt of the three subjects A, B, and C when standing with their gaze fixed did not show any significant changes on average for the three subjects, but the shoulder line tilt and pelvic tilt of the three subjects A, B, and C when they were in a natural posture were significantly improved, indicating an improvement effect on posture correction.

[0130] Next, to examine the effect of the outer arch portion 26 of the diet insole 1, a sensory test was conducted to compare the feel of use by wearing the diet insole 1 and an insole in which the outer arch portion 26 of the support protuberance 20 of the diet insole 1 had been cut out (i.e., an insole in which, instead of the support protuberance 20 of the diet insole 1, a toe ball protuberance that protrudes upward from the insole body 10 to support the toe ball of the user 2, and a heel protuberance that protrudes upward from the insole body 10 to support the heel of the user 2 at a position away from the toe ball protuberance toward the heel in the Y-axis direction).

[0131] Figure 29 is a schematic diagram showing the evaluation sheet 300 used in the sensitivity test, and Figure 30(a) is a diagram showing the results of evaluating the feel of using the diet insole 1, and (b) is a diagram showing the results of evaluating the feel of using an insole (not shown) in which the outer part 26 of the arch of the support protuberance 20 of the diet insole 1 has been cut out.

[0132] In addition, in the insole in which the outer arch portion 26 of the support protuberance 20 is cut out, the entire area extending in the width direction (X-axis direction in Figure 2) of the outer arch portion 26 is removed, and the support protuberance 20 is completely separated on the toe side and heel side.

[0133] In the sensitivity test, 10 subjects were asked to insert the diet insole 1 into footwear 3, and then insert an insole made by cutting out the outer arch portion 26 of the support protuberance 20 of the diet insole 1 into footwear 3. Then, they walked indoors wearing the footwear 3. They were asked to rate each of the following items on a 7-point scale: -3 (very poor), -2 (very poor), -1 (slightly poor), 0 (average), 1 (slightly good), 2 (very good), and 3 (very good). The average scores of the 10 subjects were also calculated for each item, as shown in Figure 30.

[0134] As shown in Figure 30(a), when the diet insole 1 was inserted inside the footwear 3, the average scores for each item were 2.2 for the resistance of the foot to slipping against the insole inside the footwear 3 (fit), 1.9 for the resistance of the toes to slip sideways against the insole inside the footwear 3, 1.6 for ease of walking, 1.8 for ease of moving the toes, and 2.0 for stimulation of the pressure points in the arch.

[0135] Furthermore, as shown in Figure 30(b), when an insole made by cutting out the outer arch portion 26 of the support ridge 20 of the diet insole 1 was inserted inside the footwear 3, the average scores for each item were -0.4 for the ability of the foot to slip against the insole inside the footwear 3 (fit), -0.9 for the ability of the toes to slip sideways against the insole inside the footwear 3, -0.3 for ease of walking, 0.3 for ease of toe movement, and 0.0 for stimulation of the pressure points on the arch.

[0136] In other words, by inserting the diet insole 1 inside the footwear 3, the average ratings for all items, including the ability of the foot to not slip relative to the insole inside the footwear 3 (fit), the ability of the toes to not slip sideways relative to the insole inside the footwear 3, ease of walking, ease of movement of the toes, and stimulation of the pressure points in the arch, exceeded the average ratings when an insole with the outer arch portion 26 of the support ridge 20 of the diet insole 1 cut out was used.

[0137] The diet insole 1 of this embodiment is raised from the ball of the little toe to the heel so that the outer part 26 of the arch of the sole of the foot at the support protrusion 20 is higher, and it has been confirmed that this can improve all of the following indicators: the ability of the foot to slip against the diet insole 1 inside the footwear 3 (fit), the ability of the toes to slip sideways against the diet insole 1 inside the footwear 3, ease of walking, ease of movement of the toes, and stimulation of the pressure points in the arch of the foot.

[0138] (Other embodiments) In the above embodiment, the thickness of the diet insole 1 was changed by changing the thickness of the insole body 10 so that it becomes thicker from the end 10a on the toe side in the Y-axis direction to the heel, but the configuration for changing the thickness of the diet insole 1 is not limited to this, and for example, the thickness of the diet insole 1 may be changed by changing the thickness of the support ridge 20, or the thickness of the diet insole 1 may be changed by changing the thickness of the insole body 10 and the thickness of the support ridge 20.

[0139] In the above embodiment, five acupressure protrusions 34 are formed on the arch support 30, but the number of acupressure protrusions 34 does not have to be five, and the number can be increased or decreased as appropriate.

[0140] In the above embodiment, the dimensions of the M size are such that the support protuberance 20 is formed to a thickness of, for example, approximately 2.0 mm, the insole body 10 at the toe area is formed to a thickness of, for example, approximately 2.5 mm, the insole body 10 at the outer arch part 26 is formed to a thickness of, for example, approximately 5.8 mm, the insole body 10 at the heel area is formed to a thickness of, for example, approximately 6.0 mm, the base part 32 is formed to a height of, for example, approximately 2.0 mm, and the acupressure protrusions 34 are formed to a height of, for example, approximately 3.0 mm. However, the dimensions of the support protuberance 20, insole body 10, base part 32 and acupressure protrusions 34 are not limited to these.

[0141] For example, in order to reduce the magnitude of the acupressure force exerted by the acupressure protrusions 34, the height of the acupressure protrusions 34 may be set to, for example, approximately 2.0 mm, less than the approximately 3.0 mm described in the above embodiment. Also, the thickness of the support ridge 20 may be set to, for example, 2.5 mm, the thickness of the insole body 10 at the toe area to, for example, 2.5 mm, the thickness of the insole body 10 at the lateral arch 26 to, for example, 5.2 mm, the thickness of the insole body 10 at the heel to, for example, 5.5 mm, the height of the base 32 to, for example, 2.5 mm, and the height of the acupressure protrusions 34 to, for example, 2.0 mm, and these dimensions can be adjusted as appropriate depending on the size of an individual's foot.

[0142] In the above embodiment, the insole body 10 has been described as an insole compatible with sizes 25.0 cm, 25.5 cm, 26.0 cm, and 26.5 cm (e.g., M size), but this is not particularly limited to this, and the insole body 10 may also be an insole compatible with sizes 23.0 cm, 23.5 cm, 24.0 cm, and 24.5 cm (e.g., S size), or an insole compatible with other sizes.

[0143] In the above embodiment, the arch support portion 30 is configured to have a base portion 32 and multiple acupressure protrusions 34, but the configuration of the arch support portion 30 is not limited to this, and for example, the arch support portion 30 may be formed inside the outer arch portion 26 on the top surface of the insole body 10, and may be formed so that its height position from the bottom surface of the insole body 10 is higher than the support ridge 20, and may be configured to support the arch.

[0144] In the above embodiment, the diet insole 1 is configured to have the arch support portion 30, but it may be configured not to have the arch support portion 30. In other words, the diet insole 1 may be configured to have the insole body 10 and the support ridge portion 20 without having the arch support portion 30.

[0145] The present invention can be embodied in various other forms without departing from its spirit or main characteristics. Therefore, the above-described embodiments are merely illustrative in all respects and should not be interpreted as limiting. The scope of the present invention is defined by the claims and is not limited to the description in the specification. Furthermore, all variations, various improvements, substitutions, and modifications within the equivalent range of the claims are within the scope of the present invention. [Explanation of symbols]

[0146] 1: Diet insoles 2: User 3: Footwear 10: Insole body 10a: Notch 11: Warped portion 112: Outer warped portion 114: Inner warped portion 12: Small hole 13: Size adjustment line 20: Support ridge 22: Notch 24: Slanted part 26: Outer arch (outer arch) 30: Arch support part 32: Base part 34: Shiatsu protrusion part 41: Metatarsal 42: Sesamoid 43: Cuboid 44: Calcaneus 45: Proximal phalanx 45 46: Middle phalanx 47: Distal phalanx 48: Cuneiform bone 49: Scaphoid bone 200: Comparison insole 300: Evaluation sheet H1: Knee vibration H2: Pelvic vibration H3: Acromion vibration H4: Foot (heel) vibration

Claims

1. a flexible insole body that is housed in the footwear and covers the sole of the user; a support protuberance spaced apart from the front of the insole body and protruding from the upper surface of the insole body so as to support at least the ball of the big toe, the ball of the little toe and the heel of the sole of the foot, wherein the support protuberance supports the sole of the foot at a distance from the insole body so that the user's toes can move; The support protrusion protrudes from the ball of the little toe to the heel so as to raise at least the outer side of the arch of the sole, The diet insole is characterized in that when the user wears the footwear containing the insole body, the top of the foot abuts against the inside of the footwear.

2. The diet insole according to claim 1, further comprising an arch support portion formed on the inside of the outer arch portion on the upper surface of the support protuberance, formed so that its height from the bottom surface of the insole body is higher than that of the support protuberance, and providing acupressure and support to the arch.

3. The arch support portion has a base portion that protrudes upward from the insole body so as to cover the entire arch, and a plurality of acupressure projections that protrude upward from the base portion to support the arch, 3. The diet insole according to claim 2, wherein the number of the acupressure projections decreases toward the heel side in the longitudinal direction of the insole body.

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