JPH09224703A - Shoes and inner sole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To retrieve the arch of the foot by sustaining the inner lengthwise arch, outer lengthwise arch and side arch of the foot by means of a longitudinal convex lens curved surface put inside the bottom of the shoe, with the partitions of the first, second outer edge, inner edge and rear edge. SOLUTION: The longitudinal convex lens curved surface article is shaped out by lines such as, a first front edge 1 gained by cutting off the front part of a first inner toe joint 8a, a second front edge 2 making a gentle curve gained by cutting off from the part touching the head of a second inner toe bone 7b to the head of a fourth inner toe bone 7d, a first outer edge 3 making a concavity arch forming two outward-warped lines gained by cutting off from the head of the fourth inner toe bone 7d to the forefront of a cubical bone 7f, a second outer edge 4 gained by cutting off the fore-front of the cubical bone 7f to the rear end of the heel outer side, and finally an inner edge 5 and a rear edge 6. The longitudinal convex lens curved surface article is respectively put onto the inner bottom of the shoes so as to sustain the inner outer lengthwise arch and side arch, thus the arches of the foot are well retrieved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shoe and an insole capable of adjusting all arch structures of a foot and adjusting flexibility of a toe and thereby reinforcing the function of the foot.

[0002]

2. Description of the Related Art In Japanese Utility Model Publication No. 6-23515, FIG.
As shown in (a), an integrated structure of arch pads X1, X2, and X3 that reinforce the three arches of the foot is shown. This structure is intended to reinforce the arch part for the purpose of alleviating a walking disorder due to a decrease in the arch of the foot.

[0003]

As described above, the above-mentioned conventional structure is to reinforce the arch of the lowered foot by overlapping the arch pad on the arch. Is used for the purpose of supporting the arch and distributing pressure, and does not restore the arch of the foot itself. Therefore, as it is used, the arch of the foot further deteriorates, the cushioning effect of the arch is not obtained, and excessive mechanical stress is applied to the load joint, resulting in various obstacles in the foot. It is not a fundamental solution to the problem such as the occurrence.

The present invention was devised in view of the above problems of the prior art. By providing a shoe or an insole having a special foot contact surface structure, not only the arch of the foot is recovered but also the arch of the foot is restored. The function of the foot can be reinforced based on each movement axis of the foot, which will be described later, so that the entire arch structure of the foot and the flexibility of the toes can be adjusted.

[0005]

[Means for Solving the Problems] A foot is composed of a tibia, a fibula, seven tarsal bones, five metatarsal bones, 14 seed bones and several seed bones, and there are a pair of 58 bones. It works complicatedly. For the purpose of adapting to rough terrain and transmitting the force generated by weight and movement of the body to the surface of the earth, the feet are shown in FIGS.
An arch structure as shown in 1 (medial longitudinal arch: arc with the first point of metatarsophalangeal from the ground point of the calcaneus in the posterior direction with the scaphoid as the apex, lateral longitudinal arch: with the cubic bone as the apex in the posterior direction An arc formed by the fifth metatarsophalangeal joint and a lateral arch: a lateral arch formed by the metatarsophalangeal joint and a lateral arch formed by the tarsal bone are formed anteriorly from the ground point of the calcaneus. The arch structure of the foot has a function as a shock absorber that is indispensable for flexibility when walking. Therefore, in abnormal conditions such as abnormal reduction or augmentation of the arch structure, not only the functions of walking, running, and standing are impaired, but also excessive mechanical stress (rotation stress, internal / external stress) is exerted on load joints such as legs, knees, and hip joints. Anti-stress etc.)
Can be the cause of giving. Therefore, if the abnormal state of the arch structure of the foot is improved, it is effective for improving the functions of walking, running, and standing while changing the motion of the load joint.
The inventor thought. On the other hand, it is argued that the functions of the foot generally include the following. a) Create a support surface to maintain bipedal upright walking without excessive muscle contraction. b) The walking stance layer has a mechanism for absorbing the rotation elements of the entire lower limb. c) It has appropriate flexibility to absorb impacts such as body weight and adapt to irregular surfaces. d) By strengthening the legs, it acts as a lever for kicking out when walking. Among them, the function of b) is based on the axis of motion of the subtalar joint, the function of c) is based on the axis of motion of the lateral tarsal joint, and the function of d) is based on the windlass mechanism. The inventor is thinking, and it is necessary to clarify the relationship between the function of the foot, the movement axis of each joint of the foot and the mechanism thereof. As a result of pursuing the relationship between the function of the foot and the axis of motion of each joint of the foot and the mechanism thereof, the present inventor,
In addition to the structure for adjusting the abnormality of the arch structure of the foot, the load due to the arch recovery of the foot is used by using the following structure which is peculiar to the present invention and which is reasonably derived from the movement of the foot around the above-mentioned movement axis. It not only reduces the mechanical stress on the joints, improves the functions of walking, running and standing, but also enhances the function of the legs.

Therefore, as shown in FIG. 1 (the right foot is shown as an example in FIG. 1), the shoe of the present invention according to claim 1 has a portion in contact with the front of the first metatarsophalangeal joint inward. Gently swell to form the first front edge portion 1, which is partitioned so as to exhibit a gentle arc-shaped curve from the portion in contact with the second metatarsal head to the portion in contact with the fourth metatarsal head, and that portion is gently bent inward. To the second front edge 2, and the part that contacts from the 4th metatarsal head to the 5th metatarsal tarsal metatarsal joint to the front of the cuboid bone The first outer edge 3 is gently swelled inward so as to draw a concave gentle arc close to the side of, and the position projected from the front of the cuboid bone to the outer surface of the sole of the cuboid at the end of the cuboid bone. Gently raise the part that touches with the connecting line inward, The outer edge portion 4 is formed, and the portion that is in contact with the inner foot side of the first front edge portion 1 at a line connecting the inner side of the projected portion of the calcaneus distance projection is raised inward to form the inner edge portion 5, and Draw a concave arc along the heel contact line from the inside of the calcaneus distance-projecting projection of the edge 5 to the projection of the outer lateral surface of the bottom of the cubic bone of the second outside edge 4 The first and second front edge portions 1 and 2, the first and second outer edge portions 3 and 4, the inner edge portion 5 and the rear edge portion 6 are formed as the rear edge portion 6 that is gently raised inward. It has a basic feature that it can support the inner vertical arch, the outer vertical arch, and the lateral arch of the foot by having the vertically upward convex lens-like curved surface section partitioned by in the inner bottom surface of the shoe. Among the above configurations, as the configuration of the first front edge portion 1,
The contour configuration in which the portion contacting in front of the first metatarsophalangeal joint is gently raised in the inward direction is that the position is located at the forefront of the inner longitudinal arch and the position where the flexibility of the toe is increased. This is because it is necessary to leave it. As a configuration of the second front edge portion 2, the second front edge portion 2 is partitioned so as to exhibit a gentle arc-shaped curve from a portion in contact with the second metatarsal head to a portion in contact with the fourth metatarsal head, and the portion is gently raised inward. The reason is that the front part of the lateral arch is formed by the metatarsal head. As a configuration of the first outer edge portion 3, a portion contacting from the fourth metatarsal head to the anterior part of the cuboid bone through the tarsal metatarsal joint of the fifth metatarsal bone is a right or left side forming an eight shape. The reason why the configuration is such that the concave gentle arc that approximates to is drawn is gently raised in the inward direction, because the fifth metatarsal bone is normally parallel to the ground contact surface of the foot in a dynamic state such as walking. This is because it is necessary to have a contour that does not contact the fifth metatarsal bone. Second outer edge 4
As the configuration of, the configuration that gently swells inward the part that contacts the line connecting the position projected from the frontmost part of the cuboid bone to the outer surface of the sole of the cubic bone (the part along the outer surface of the sole) , The cubic bone is located at the apex of the lateral longitudinal arch, and as shown in FIG. 2, the operation of the elevation of the cubic bone from the motion axis K of the subtalar joint is the position of the hind foot (pronation, supination). Due to having a great influence on. The position of this hind foot is
As shown in FIG. 3, since it is interlocked with the movement of the lower leg, the load joints (knee joint, hip joint) higher than the foot portion are greatly affected. The configuration of the inner edge portion 5 is such that a portion (a portion along the inner surface of the sole) which is in contact with a line connecting the inner foot side of the first front edge portion 1 and the inner side of the projection portion of the calcaneus distance protrusion is raised inward. This curve corresponds to the medial longitudinal arch, and the height of the posterior part of the curve greatly increases from the movement axis K of the subtalar joint shown in FIG. 2 to the position of the hind foot (pronation, supination). This is because the height of the front part greatly affects the position of the forefoot (pronation, pronation). As the configuration of the trailing edge portion 6, a portion contacting from the inside of the projection portion of the calcaneus distance-mounting projection of the medial edge portion 5 to the projection position of the outer side of the sole of the cubic bone of the second outer edge portion 4 is a ground line of the heel. The calcaneus protrudes downward from the center of the sole of the foot, and the second lateral edge 4 and the posterior edge 6 are formed so that the calcaneus gently bulges inward so as to draw a concave arc along the When the foot rests on the foot, as shown in Fig. 4, when the center of the calcaneus is pushed downward to allow the heel to touch the ground, the person will be in a state of dorsiflexion as a whole, supporting the sole of the foot when walking upright on two feet. This is because it strengthens the contact of the surface with the ground.

On the other hand, in the configuration of claim 2, in addition to the configuration of claim 1, as shown in FIG. 5, the second outer edge portion 4 is raised from the edge portion and held in an arched shape. This is because the function of the foot based on the movement axis of the subtalar joint is taken into consideration. That is, as shown in FIGS. 2 (a) and 2 (b), the motion axis K of the subtalar joint has angles on all three body planes, namely, the horizontal plane, the sagittal plane, and the frontal plane, and the movement is performed on all planes. Occurs. Plantar flexion, varus, and adduction (Fig. 6) around the axis of motion K rotate by coupling (acting in a superimposed manner), while on the other hand, dorsiflexion, valgus, and abduction about the coaxial K. (Fig. 7) The movement is coupled and rotated to create the movement of the hind legs. The arch-shaped configuration of the second outer edge 4 makes it possible to retain the outer longitudinal arch of the foot with the lower end of the cuboid bone as a point, causing the hind foot to valgus, thereby predominantly supporting the back. It is possible to induce flexion / abduction movements.

Further, in the structure of claim 3, in addition to the structures of claims 1 and 2, as shown in FIG. 8, the inner edge portion 5 is raised from the edge portion and held in an arched shape. With this configuration, it is possible to retain the medial longitudinal arch with the distance projections of the calcaneus as the point, which leads to inversion of the hind legs and induces plantar flexion and adduction movements. You will be able to. Moreover, the lateral tarsal joint is closely related to the stability and flexibility of the foot. As shown in FIGS. 9 (a) and 9 (b), this axis of movement is composed of two axes, a vertical axis Y1 and an oblique axis Y2, and the vertical axis Y1 is parallel to the horizontal plane and the sagittal plane and movement occurs on the frontal plane. , Perform varus and valgus movements.
The oblique axis Y2 is parallel to the frontal plane and moves in a horizontal plane and a sagittal plane, so that plantar flexion / adduction is coupled and dorsiflexion / abduction is coupled to perform respective motions. However, in the movement of the foot, the movement is very small, and it is not necessary to consider the movement of the foot, but a certain height is required to hold the inner arch.

According to a fourth aspect of the present invention, the above first to third aspects are provided.
In addition to the above configuration, as shown in FIG. 10, the inner edge portion 5 is configured to be smoothly lowered from the portion contacting the first metatarsophalangeal joint portion to the portion contacting the first metatarsal bone. This is due to consideration of the function of the foot according to the axis of movement of the row. That is, a row is a functional unit of five metatarsal bones and is involved in the movement of the forefoot except for the toes. Among them, as shown in FIGS. 11 (a) and 11 (b), what is important is the first row motion axis R, which is parallel to the horizontal plane and moves in the frontal plane and the sagittal plane, resulting in plantar flexion. The valgus, dorsiflexion, and varus are each coupled to exercise. The inner edge 5 is smoothly lowered from the portion in contact with the first metatarsophalangeal joint to the portion in contact with the first metatarsal bone, so that the first row is planted flexed around the movement axis R.・ It is possible to induce valgus.

Further, in the structure of claim 5, in addition to the structures of claims 1 to 3, as shown in FIG.
Therefore, it is configured such that the height is smoothly increased from the portion contacting the first metatarsophalangeal joint to the portion contacting the first metatarsal bone. With such a configuration, it becomes possible to guide the first row in the dorsiflexion / varus direction about the movement axis R.

Further, the structure of claim 6 proposes a structure of an insole having the same shape as the inner bottom surface of the shoe of the above-mentioned claim 1, and the specific structure thereof is the first metatarsophalangeal joint. Notch at a portion contacting in front, as a first front edge portion, notch so as to exhibit a gentle arcuate curve from the portion contacting the second metatarsal head to the portion contacting the fourth metatarsal head,
The second anterior edge, and the portion contacting from the fourth metatarsal head to the front part of the cuboid bone through the tarsal metatarsal joint of the fifth metatarsal is approximated to the right or left side forming the figure eight. Notch so as to draw a concave gentle arc, as the first outer edge, notch the part that comes into contact with the line connecting the position projected from the foremost part of the cuboid bone to the lateral outer surface of the sole of the cuboid bone, A second outer edge portion is formed, and a portion which is in contact with a line connecting the inner side of the calcaneus distance projection projection from the inner foot side of the first front edge portion is cut out to be an inner edge portion, and further, the inner edge portion of the inner edge portion. A portion contacting from the inside of the calcaneus distance-projection projection portion to the plantar lateral side projection position of the rearmost part of the cubic bone of the second outer edge portion is cut out so as to draw a concave arc along the heel ground line, As the trailing edge,
These first to second front edge portions, first to second outer edge portions,
Among the surface parts partitioned by the inner edge portion and the rear edge portion, a gentle arch-shaped convex portion is formed in the longitudinal direction to support the inner vertical arch, the outer vertical arch and the lateral arch of the foot. To do. By using this structure on the inner bottom surface of the shoe, the same operation as the structure of claim 1 can be obtained. The reason why the structure of each of these parts is limited as described above is that of the structure of each part of claim 1. It is the same as the reason for limitation.

According to a seventh aspect of the insole structure of the present invention, the second outer edge part is raised by the edge part to hold it in an arch shape, and in the eighth aspect, the inner edge part is raised by the edge part. It is configured to be held in an arch shape, and in the configuration of claim 9, the inner edge portion is configured to be smoothly lowered from a portion in contact with the first metatarsophalangeal joint portion to a portion in contact with the first metatarsal bone. Further, in the structure of the insole of claim 10, the inner edge portion is configured to be smoothly raised from a portion in contact with the first metatarsophalangeal joint portion to a portion in contact with the first metatarsal bone. All are the same as the reason why the shoe structures according to claims 2 to 5 have similar configurations.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the insole construction of the present invention will be described. FIG. 13 shows an embodiment of the insole construction of claim 6. In the figure, first to fifth metatarsal bones 7a to 7e, cubic bone 7f, talus 7g, calcaneus 7h, seed bone 7i, first to fifth metatarsophalangeal joints 8a to 8e, tarsal metatarsal joint 8f, The lateral tarsal joint 8g shows the skeleton of the right foot (the calcaneus-growing projection is a projection near the medial heel of the calcaneus and is not shown in the drawing), and the insole of this shoe has a thick line above it. It is a composition drawn in layers. Then, the insole is attached and used at a proper position on the inner bottom surface of the shoe.

In the configuration of this embodiment, the first metatarsophalangeal joint 8
a cut out at the front contacting portion to form the first front edge portion 1,
The second metatarsal bone 7b and the fourth metatarsal bone 7d are cut out so as to form a gentle arc-shaped curve from a portion that contacts the head of the fourth metatarsal bone 7d to a portion that contacts the head of the fourth metatarsal bone 7d. The cuboid bone 7 passes from the head through the tarsal metatarsal joint 8f of the fifth metatarsal bone 7e.
f The part that touches the foremost part is cut out so as to draw a concave gentle arc that approximates the right or left side forming the figure eight, and is made the first outer edge part 3, and the cubic bone 7f is cubic from the foremost part. A portion contacting with a line connecting the position projected on the lateral outer surface of the sole of the bone 7f is cut out to form a second outer edge portion 4, and the calcaneus mounting from the inner foot side of the first front edge portion 1 is performed. A portion which is in contact with a line connecting the inner side of the distance projection projection is cut out to form an inner edge 5, and further the calcaneus of the inner edge 5 is projected from the inner side of the projection projection of the distance projection to the cubic bone 7f of the second outer edge 4. The portion contacting the projected position on the outer lateral surface of the sole is cut out so as to draw a concave arc along the grounding line of the heel, and is defined as the rear edge portion 6. Also, as the material for this insole, EV
A, elastomer resin, elastic polyurethane, cork, rubber, or the like can be used, or a material obtained by mixing, foaming, vulcanizing, or crosslinking these materials may be used. Further, the hardness of 0 to 90 can be used, and the higher the accuracy of motion control, the harder it becomes.

Among the above-mentioned constitutions, the first front edge portion 1 has a notch at a portion contacting in front of the first metatarsophalangeal joint 8a, which is located at the foremost portion of the inner longitudinal arch. This is because it is necessary to set the position where the flexibility of the toes is increased.

As the structure of the second front edge portion 2, the second metatarsal bone 7 is used.
Since the front part of the lateral arch is formed by the metatarsal head, the notch is formed so as to exhibit a gentle arcuate curve from the part contacting the b head to the part contacting the fourth metatarsal bone 7d head. Is.

As a constitution of the first outer edge portion 3, a portion which is in contact with the fourth metatarsal bone 7d head through the tarsal metatarsal joint 8f of the fifth metatarsal bone 7e to the frontmost part of the cubic bone 7f is figured in eight. In the configuration in which the notch is drawn so as to draw a concave gentle arc that approximates the right side or the left side that constitutes, the fifth metatarsal bone 7e is normally parallel to the ground contact surface of the foot in a dynamic state such as walking. This is because the position is such that the contour does not contact the fifth metatarsal bone 7e.

As the structure of the second outer edge portion 4, a cubic bone 7f is used.
The cubic bone 7f has an outer longitudinal arch because the portion that joins with the line connecting the position projected from the foremost part to the rearmost part of the cubic bone 7f to the outer lateral surface of the foot (the portion along the outer lateral surface of the foot) is cut out. Is located at the apex of, and as shown in FIG.
This is because the operation of the elevation of the cubic bone 7f portion from the movement axis K of the subtalar joint has a great influence on the position (pronation, supination) of the hind foot.

As a constitution of the inner edge portion 5, a portion (a portion along the inner surface of the sole) which is in contact with a line connecting the inner foot side of the first front edge portion 1 to the inner side of the projected portion of the calcaneus distance-bearing projection is cut out. This curve corresponds to the medial longitudinal arch, and the height of the posterior part of the curve is from the movement axis K of the subtalar joint shown in FIG. 2 to the position of the hind foot (pronation, supination). This is because the height of the front part greatly affects the position (pronation, pronation) of the forefoot.

As the constitution of the rear edge portion 6, a portion contacting from the inside of the projection portion of the calcaneus distance-bearing projection of the inner edge portion 5 to the projection position of the outer side of the sole of the rear portion of the cubic bone 7f of the second outer edge portion 4, The notch is formed so as to draw a concave arc along the ground contact line of the heel because the calcaneus 7h projects downward from the center of the sole of the foot, and the second outer edge portion 4 and the rear edge portion 6 are formed. When the foot rests on the foot, as shown in FIG. 4, when the center part of the calcaneus 7h is pushed downward to allow the heel to touch the ground, the dorsiflexion occurs as a whole, and the sole of the foot when walking upright on two feet. This is because the grounding of the support surface to the ground is strengthened.

The insole of the present embodiment is the first of these.
To the second front edge portions 1 and 2, the first to second outer edge portions 3 and 4, the inner edge portion 5 and the rear edge portion 6 form a gentle arch-shaped convex portion in the longitudinal direction among the surface portions. doing.

On the other hand, FIG. 14 shows the apex trajectory T of the highest apex in the width direction of the insole. As shown in FIG. 15A, when a plurality of the insoles are cut in the longitudinal direction, a cut surface shape as shown in FIG. 15B is obtained. In the cross section, the upper convex lens-like curved surface that is wide in the front and narrow in the rear is formed with the portion a as the apex. This cross-sectional shape, as described later,
It corresponds to the inner vertical arch and plays a role in supporting it. The region a corresponds to the region of the scaphoid bone, which is the apex of the medial longitudinal arch. Further, in this cross section, the inclination of the rear portion from the apex a is strengthened for the purpose of enhancing the stability of the rear foot portion. In the cross section, an upwardly convex lens-like curved surface is formed with the portion b as the apex. In the cross section, an upwardly convex lens-like curved surface having a narrow front portion and a wide rear portion with the c portion as the apex. The portion c serves to enhance the flexibility of the second to fourth fingers. In the cross section, an upward convex lens-like curved surface having a narrow front portion and a wide rear portion with the portion d as the apex. In the cross section, an upward convex lens-like curved surface having an apex at the portion e is formed. As will be described later, this lens curved surface corresponds to the position of the cuboid bone 7f, which is the apex of the outer longitudinal arch, and plays a role of supporting this.

When a plurality of the insoles are cut in the width direction as shown in FIG. 16 (a), a cut surface shape as shown in FIG. 16 (b) is obtained. In the cross section, an upward convex lens-like curved surface is formed with the portion f as the apex. The apex f is located between the heads of the second to third metatarsal bones 7b and 7c, and its cross section has a role of supporting and supporting the site of the lateral arch. Further, the anterior part of this section is the first to fourth metatarsophalangeal joints 8
Since the positions a to 8d are set in a more flexed position, the flexibility of the toes is enhanced, and the propulsive property during walking is enhanced. The cross section has a bimodal curved surface having vertices at the portions g and h. The part g supports the front part of the inner longitudinal arch, and the part h supports the lateral arch. In cross section, i
It has an upwardly convex lens-like curved surface that is narrow inward and wide outward, with the portion of which is the apex. The cross section has a bimodal curved surface with vertices at j and k. Of these, the inner curved surface plays a role of supporting the highest point of the inner vertical arch,
The outer curved surface plays a role of supporting the cubic bone 7f which is the apex of the outer longitudinal arch. The two curved surfaces in this cross section increase the inclination of the outermost edge for the purpose of strengthening the fixability of the rear foot. The cross section 10 has an upwardly convex lens-like curved surface that is narrow inward and wide outward, with the site of l as the apex. This lenticular surface serves to support the rear part of the inner longitudinal arch.

As described above, if the structure in which the inner edge portion 5 is raised at the edge portion and held in an arched shape [see the cross section of FIG. 15 (b)] is provided, the distance mounting protrusion of the calcaneus 7h is pointed out. It is possible to retain the inner longitudinal arch, which allows the hindfoot to invert, which can induce the plantar flexion and adduction movements predominantly, and also absorbs the rotation elements of the entire lower limb into the standing stance layer during walking. It becomes possible. Moreover, by holding such an inner vertical arch, it becomes possible to absorb an impact such as weight and adapt to an irregular surface.

As shown in the cross section of FIG. 15 (b), if the second outer edge 4 is raised by the edge and is held in an arched shape, the foot of the foot with the lower end of the cubic bone 7f as a point is pointed out. It becomes possible to hold the lateral longitudinal arch, and valgus the hind foot about the axis of motion K of the subtalar joint, which can induce dorsiflexion / abduction motion predominantly, and The stance layer can absorb the rotation element of the entire lower limb.

Further, as shown in FIG. 17, with respect to the structure of the inner edge portion 5, if it is smoothly lowered from the portion contacting the first metatarsophalangeal joint 8a portion to the portion contacting the first metatarsal bone 7a, It is possible to guide the first row to plantar flexion / valgus around the first row movement axis R.

On the contrary, as shown in the cross section of FIG. 16 (b), in the structure of the inner edge 5, from the portion contacting the first metatarsophalangeal joint 8a portion to the portion contacting the first metatarsal bone 7a. If you raise it smoothly, the first
It is possible to guide the rows dorsiflexion and varus. For reference, FIG. 18B shows the conventional structure and the form of the insole. The figure will clarify the difference between the two configurations.

[0028]

According to the structure of the present invention described in detail above, not only the abnormality of the arch structure of the foot can be adjusted, but also the function of the foot can be reinforced based on the movement axis of the foot. Therefore, not only the mechanical stress of the load joints can be reduced by the restoration of the arch of the foot, the functions of walking, running, and standing can be improved, but also the function of the foot can be reinforced.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a configuration of a shoe of the present invention according to claim 1.

FIG. 2 is an explanatory diagram showing a motion axis of a subtalar joint.

FIG. 3 is an explanatory diagram showing a relationship between a movement of a foot and a movement of a lower leg.

FIG. 4 is an explanatory view showing a state in which a heel protrudes from a rear edge.

FIG. 5 is a side view showing a configuration in which a second outer edge is raised from the edge and held in an arch shape.

[Fig. 6] Plantar flexion, varus, and eccentricity around the motion axis of the subtalar joint
It is explanatory drawing which shows the movement of the foot by the adduction movement.

FIG. 7: Dorsiflexion, valgus and valgus around the axis of motion of the subtalar joint
It is explanatory drawing which shows the motion of the foot by abduction movement.

FIG. 8 is a side view showing a configuration in which an inner edge is raised from the edge and held in an arch shape.

FIG. 9 is an explanatory diagram showing a motion axis of a lateral tarsal joint in a foot skeleton.

FIG. 10 is a view showing a state in which the first metatarsophalangeal joint is in contact with the first
It is a side view which shows the structure of the inner edge part comprised by the structure made to lower smoothly over the part which contacts a metatarsal bone.

FIG. 11 is an explanatory diagram showing a first row motion axis in the metatarsal unit.

FIG. 12 is a view showing a state where the first metatarsophalangeal joint is in contact with the first
It is a side view which shows the structure of the inner side edge part made into the structure which raises smoothly over the part which contacts a metatarsal bone.

FIG. 13 is a plan view showing an embodiment of the structure of the right foot skeleton and the insole according to claim 6;

FIG. 14 is a plan view showing the vertex trajectory of the highest vertex in the width direction of the insole.

FIG. 15 is an explanatory view showing a longitudinally cut cross section of the present insole.

FIG. 16 is an explanatory view showing a cross section of the insole in the width direction.

FIG. 17 is a side view showing a configuration of an inner edge portion configured to be smoothly lowered from a portion in contact with the first metatarsophalangeal joint to a portion in contact with the first metatarsal bone in the configuration of the embodiment. .

FIG. 18 is an explanatory view showing a configuration of a conventional shoe insole.

FIG. 19 is an explanatory diagram of an inner vertical arch.

FIG. 20 is an explanatory diagram of an outer vertical arch.

FIG. 21 is an explanatory diagram of a horizontal arch.

[Description of Reference Signs] 1 first front edge 2 second front edge 3 first outer edge 4 second outer edge 5 inner edge 6 rear edge 7a to 7e metatarsal 7f cubic 7g talus 7h heel Bone 7i Seed bone 8a-8e Metatarsophalangeal joint 8f Tarsal metatarsal joint 8g Lateral tarsal joint

Claims (10)

[Claims] 1. A portion of the first metatarsophalangeal joint that is in contact with the front of the metatarsophalangeal joint is gently raised inward to form a first front edge portion from a portion that contacts the second metatarsal head to a portion that contacts the fourth metatarsal head. It is partitioned so as to exhibit a gentle arcuate curve, and that part is gently raised inward to form the second anterior edge portion, passing from the 4th metatarsal head to the 5th metatarsal tarsal metatarsal joint. The part that contacts the frontmost part of the cubic bone is the first outer edge that gently rises inward so as to draw a concave gentle arc that approximates the right or left side forming the figure-8, and the frontmost part of the cubic bone Part of the rear part of the cuboid bone, which is in contact with a line connecting the position projected on the outer surface of the sole of the cubic bone, is gently raised inward to form a second outer edge portion and the inner foot side of the first front edge portion. From the calcaneus distance projection projection part The part that connects with the line connecting the inside The portion in contact from the inside of the calcaneal lumbar projection projection portion of the medial edge to the position of the plantar lateral surface projection of the cubic bone rearmost portion of the second lateral edge, The first and second front edges, the first and second outer edges, and the inner edge of the first and second front edges, which are gently raised inward so as to draw a concave arc along the ground line of the heel. A shoe characterized by having a vertically long upwardly convex lenticular curved surface portion partitioned by a rear edge portion on the bottom surface of the shoe, thereby enabling the inner vertical arch, the outer vertical arch, and the horizontal arch of the foot to be supported. 2. The shoe according to claim 1, wherein the second outer edge is raised from the edge and held in an arch shape. 3. The shoe according to claim 1, wherein the inner edge is raised from the edge and held in an arch shape. 4. The shoe according to claim 1, wherein the inner edge is smoothly lowered from a portion in contact with the first metatarsophalangeal joint to a portion in contact with the first metatarsal bone. 4. The shoe according to claim 1, wherein the shoe is a shoe. 5. The shoe according to claim 1, wherein the inner edge is smoothly raised from a portion in contact with the first metatarsophalangeal joint to a portion in contact with the first metatarsal bone. 4. The shoe according to claim 1, wherein the shoe is a shoe. 6. The first metatarsophalangeal joint is notched at a portion in front thereof to form a first anterior edge, and a gentle portion is formed from a portion contacting the second metatarsal head to a portion contacting the fourth metatarsal head. Notched so as to present an arc-shaped curve, the second anterior edge, and the portion that contacts from the fourth metatarsal head through the tarsal metatarsal joint of the fifth metatarsal to the forefront of the cubic bone, Cut out so as to draw a concave gentle arc that approximates the right or left side that constitutes the first outer edge, and project the position projected from the foremost part of the cubic bone to the outer sole surface of the cubic bone from the rearmost part. Cut out the part that touches with the connecting line to form the second outer edge,
Cut off the portion that touches with the line connecting the inside of the calcaneal distance projection projection from the inner foot side of the first front edge to form an inner edge, and further from the inside of the calcaneus distance projection projection of the inner edge. A portion of the second outer edge that touches the rearmost portion of the cubic bone toward the plantar outer surface projection position is cut out so as to draw a concave arc along the ground line of the heel. Forming a gentle arch-like convex portion in the longitudinal direction among the surface portions partitioned by the first to second front edge portions, the first and second outer edge portions, the inner edge portion, and the rear edge portion, and the inner vertical arch of the foot portion A shoe insole characterized by being capable of supporting an outer vertical arch and a lateral arch. 7. The insole according to claim 6, wherein the second outer edge is raised at the edge and held in an arch shape. 8. The shoe insole according to claim 6, wherein the inner edge is raised at the edge and held in an arch shape. 9. The shoe insole according to claim 6, wherein the inner edge is smoothly lowered from a portion in contact with the first metatarsophalangeal joint to a portion in contact with the first metatarsal bone. 9. The shoe insole according to claim 6, wherein: 10. The insole according to claim 6, wherein the inner edge is smoothly raised from a portion in contact with the first metatarsophalangeal joint to a portion in contact with the first metatarsal bone. 9. The shoe insole according to claim 6, wherein: