JPH1132806A - Sole for shoe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sole for shoe that can maintain a fixed angle of inclination with pointing the point of the sole that corresponds to a toe of a shoe at an upward of the side of the point so as to adapt a sole for shoe to execute a normal walking mechanism for human's bare foot. SOLUTION: A sole for shoe is constituted of an out-sole 1 and a mid-sole 1' that is combined at the upper part of the out-sole 1, or constituted of the out-sole 1 alone and a point which corresponds to a toe of a shoe 3 is formed with being lifted toward an upward of the point with a fixed angle of inclination. An elastic plate 2 with an angle of inclination from 5 to 20 degrees toward the upward of the point is buried in the point of the out-sole 1 or the mid-sole 1' so as to maintain the angle of inclination from 5 to 20 degrees toward the upward of the point.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shoe sole, and more particularly, to a method of maintaining a constant angle of a portion hitting the sole of a foot, and faithfully and accurately performing a human bare foot walking mechanism. About shoe soles.

[0002]

2. Description of the Prior Art Conventional soles are generally flat, and such flat soles are not good for a human foot sole walking mechanism.

Here, the sole of a person's foot is
It is divided into an arch and a heel (heel). In general, when a person walks barefoot, the walking mechanism on the sole of the foot is as follows. For example, first, when the heel of the right foot reaches the ground, the arch part almost immediately comes to the ground. Finally, the toes come off the ground as they land. That is, the toes are more closely adhered to the ground while the heels are separated from the ground. Then, the toes push off the ground, leaving the ground. In this way, the entire sole of the right foot reaches the ground and at the same time the left foot is moved forward. At the same time as the heel of the left foot comes to the ground, the heel part and the arch part of the right foot move away from the ground while the body moves forward, and the toe comes to the ground completely. At this time, the toes move the human body forward while pressing the ground. Also, at this time, the toes are on the ground, the heels are separated upward, and the angle between the toes and the heels is significantly different from that in normal times. Such a walking mechanism can be achieved by repeating the right foot and the left foot alternately. In such a barefoot walking mechanism, the point of contact between the sole of the foot and the ground starts at the heel and moves continuously to the toe.

[0004] However, conventional shoe soles have not been able to reliably maintain the aforementioned walking mechanism. This is because the soles of the related art are mostly flat and cannot perform the above-described walking mechanism well. In other words, traditional shoe soles are flat,
There were many difficulties in performing the normal walking mechanism of barefoot. Therefore, when wearing conventional footwear with flat soles, there is a problem that a person's walking becomes abnormal (compared to bare feet), and in severe cases, the person becomes O-legs. there were.

[0005] To solve this problem, a shoe is provided which is formed at a specific angle with the angle of the portion corresponding to the toe of the sole facing upward on the front end side. It was not so effective because it was transformed.

Further, the angle of the portion corresponding to the toe as described above requires a considerable thickness of the shoe sole in order to make it at a specific angle.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, in which the tip of the shoe sole corresponding to the toe portion is directed upward at the tip side. It is an object of the present invention to provide a sole that can be maintained at an angle, that is, a sole that is suitable for smoothly performing a normal walking mechanism of a human bare foot.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention is directed to an outsole and a midsole corresponding to a toe of a shoe. The present invention proposes a shoe sole in which an elastic plate is embedded inside a tip portion of an outsole or a midsole so that the sole can be maintained.

That is, the present invention comprises an outsole and a midsole joined to an upper part of the outsole, and a tip corresponding to the toe of the shoe is formed at a predetermined inclination angle toward the tip upward. An elastic plate is embedded inside the tip of the outsole or the midsole so that the tip of the outsole and the midsole can maintain an inclination angle of 5 to 20 degrees upward in the tip of the sole. A shoe sole characterized by:

Another aspect of the present invention is directed to a shoe sole comprising solely an outsole, wherein a tip corresponding to a toe of the shoe is formed at a predetermined angle toward the tip upward. An elastic sole is embedded in the inside of the tip of the outsole so that the tip can maintain an inclination angle of 5 to 20 degrees in the upward direction of the tip.

[0011] As described above, the sole of the present invention has the elastic plate embedded in the tip of the outsole or the midsole, so that the tip of the shoe sole corresponding to the toe of the shoe is directed upward. It can be maintained at an inclination angle of 5 to 20 degrees. As a result, the following operations and effects can be exhibited.

Generally, in order for a person to stand in a correct posture, a great deal of force is applied to the soles of the feet to maintain the center of gravity. When a great deal of force is applied to the soles of the feet, the calf muscles become nervous, and the muscles of the feet become fatigued. This is because the sole of the person's foot is inclined upward about 13.7 degrees with respect to the ground toward the tip (toe) side. Therefore, in the shoe sole according to the present invention, the tip of the shoe sole is inclined upward by 5 to 20 degrees,
When standing while wearing footwear, the weight of a person is evenly distributed to the arch and heel of the sole of the foot, thereby making it possible to reduce the degree of fatigue of the muscles of the foot.

In addition, the inclination angle of the sole of the person's foot (1
Therefore, in the present invention, it is most preferable to maintain the inclination angle of the outsole and the midsole tip part toward the tip upper part to be about 13.7 degrees.

Further, when the footwear provided with the shoe sole according to the present invention is worn, the above-described walking mechanism for the barefoot of a person can be faithfully and accurately performed. That is, since the tip of the sole of the present invention is formed to have the same angle as the upward inclination angle of the sole of the foot, the above-mentioned barefoot walking mechanism of the above-mentioned human foot even when walking while wearing footwear. Can be done faithfully and accurately. As described above, in a human barefoot walking mechanism, the contact point between the sole of the foot and the ground starts at the heel and moves continuously to the toe, but the shoe sole according to the present invention has the tip. Since the part is formed to be inclined upward, the contact point between the sole and the ground is moved from the rear part of the sole to the tip part while the tip of the shoe sole naturally adheres to the ground when walking. In other words, it is possible to walk naturally, as if the tires of the car are going forward while steadily touching the ground.

In order to maintain the tip of the shoe sole corresponding to the toe of the shoe at an inclination angle of 5 to 20 degrees toward the tip upward, in the present invention, the tip of the shoe is An elastic plate inclined at an angle of 5 to 20 degrees upward from the tip is embedded inside the tip of the outsole or the midsole.

[0016] The sole of the present invention, which is formed by embedding the elastic plate, by the outsole and the midsole connected to the outsole, or solely by the outsole, is formed by a toe portion of the shoe. Can be maintained at an inclination angle of 5 to 20 degrees toward the top of the shoe sole.

Therefore, the elastic plate can be used to connect the outsole where the self is buried or the outsole where the self is buried and the midsole thereabove to the tip of the sole corresponding to the toe of the shoe. With the tip facing upwards 5
The outsole and the midsole must have enough hardness to maintain the inclination angle of 20 to 20 degrees. After returning to the deformation, it always returns to the original state (the shape in which the tip is inclined 5 to 20 degrees toward the top of the tip). The outsole where it is buried or the outsole where it is buried and the midsole above it are also in the original state (the tip is inclined from 5 to 20 degrees upward toward the tip. ) Must have the elasticity enough to maintain the shape. In addition, these three conditions must be maintained over a long period of time according to the service life of the footwear.

According to the present invention, as an elastic plate satisfying such conditions, a synthetic resin or a combination of any one of metal fine particles, carbon fiber fine particles, glass fiber fine particles or glass carbon fiber fine particles with a synthetic resin or glass is used. We propose an elastic plate formed by combining fiber fine particles and carbon fiber fine particles. The elastic plate used for the sole of the present invention can be formed by the most suitable combination among the above-mentioned combinations according to the type and use of footwear.

The angle at which the distal end of the elastic plate is inclined upwardly also corresponds to the above-mentioned inclination angle of the sole of the human foot (about 13.7 degrees). It is most preferable to maintain the temperature at about 13.7 degrees.

[0020]

Embodiment 1 Hereinafter, a shoe sole according to the present invention will be described with reference to the accompanying drawings.

FIGS. 1 and 2 show a first embodiment of the present invention. The sole shown here is the outsole 1
And a midsole 1 ′ joined to the outsole 1
It is composed of The outsole 1 forms the lower part of the shoe sole of the footwear 3, and the back surface (lower surface) side of the outsole 1 directly contacts the ground. The outsole 1 has a tip corresponding to the tip of the shoe inclined at a predetermined angle (α) toward the tip upward. In this embodiment, the predetermined angle (α)
Is between 5 and 20 degrees, and most ideally,
It is about 13.7 degrees. Here, 13.7 degrees is a value of an angle that is inclined upward from the arch to the tip (toe) of the sole of a normal person.

The outsole 1 of this embodiment has an elastic plate 2
Is embedded. The elastic plate 2 is formed such that its tip angle is inclined upward by about 5 to 20 degrees as compared to the rear, and the elastic plate 2 having such an angle is embedded. The outsole 1 can maintain the tip angle (α) at the above value.

The material composition of the elastic plate 2 can be as follows. First, the elastic plate can be made of synthetic resin.

Further, it can also be prepared by mixing one of metal fine particles, glass fiber fine particles, carbon fiber fine particles and glass carbon fiber fine particles with a synthetic resin. Here, the mixing ratio of these fine particles is exemplified and described as follows. That is, 90% of synthetic resin and 10% of metal fine particles, 80% of synthetic resin and 20% of glass fiber fine particles, or 75% of synthetic resin
And 25% of carbon fiber fine particles can be mixed to form an elastic plate.

Further, the elastic plate 2 can be made by mixing glass fiber fine particles and carbon fiber fine particles. In this case, each mixing ratio is 6: 4
Ratio.

If the above three conditions required for the elastic plate and those conditions can be maintained for a long period corresponding to the service life of the footwear, the elastic plate can be made of any of the above materials or a combination thereof. Can also be prepared.

The reason why various materials are mixed in various mixing ratios is to make it possible to use an appropriate material depending on the type of footwear used.

The elastic plate has a very high elasticity due to the characteristics of the above-mentioned materials. Since the elastic plate having high elasticity is embedded in the outsole or the midsole, the shape of the outsole and the midsole does not change even when the shoe is used for a long time (the outsole and the midsole). The angle of inclination of 5 to 20 degrees can be maintained at the tip of the sole upward.) The midsole 1 'is placed on the upper part of the outsole 1 so that it fits tightly on the sole of the foot. Therefore, as shown in FIGS. 1 and 2, the tip portion is also formed to be inclined upward.

[0029]

Second Embodiment FIG. 3 shows another embodiment of the present invention. In this embodiment, the elastic plate 2 whose tip angle is upwardly inclined by about 5 to 20 degrees compared to the rear.
Are embedded at the tip side of the midsole 1 ′.
That is, by embedding the elastic plate 2 in the midsole 1 ′, the angle of the tip of the midsole 1 ′ is set upward from 5 degrees to 20 degrees toward the tip corresponding to the toe tip of the shoe. Is maintained at a tilted value.

The outsole 1, which is connected to the lower side (back side) of the midsole 1 'and whose back side (lower side) directly contacts the ground, is also connected to the lower side (back side) of the mid sole 1' in close contact. Therefore, the midsole 1 'is inclined at a value between 5 degrees and 20 degrees in the upward direction corresponding to the angle of the tip of the midsole 1'.

Other items such as the material of the elastic plate 2 are the same as those of the first embodiment described above, and therefore, the description is omitted.

[0032]

Third Embodiment FIG. 4 shows still another embodiment of the present invention. The sole shown here is composed solely of the outsole 1 and its tip is inclined upward by about 5 to 20 degrees toward the tip corresponding to the toe tip of the shoe. It is made. This outsole 1
In order to maintain the inclination of the front end, an elastic plate 2 that is inclined upward by about 5 to 20 degrees as compared with the rear end is embedded in the front end. The material, shape, and the like of this elastic plate are duplicated, and thus description thereof is omitted.

[0033]

The shoe sole according to the present invention comprises an outsole and a midsole connected to the outsole, or comprises only the outsole, and has a tip corresponding to the toe tip of the shoe. The elastic plate, which is made to incline upward by about 5 to 20 degrees, is embedded in the outsole or the midsole, so that the outsole and the midsole combined on the outsole Alternatively, the tip of the outsole corresponding to the tip of the toe of the shoe can maintain an inclination angle of about 5 to 20 degrees upward. Thus, it is possible to provide a shoe sole in which the tip corresponding to the toe tip of the shoe can maintain a predetermined inclination angle (5 to 20 degrees) upwards even after long-term use.

As described above, even when the shoe sole according to the present invention is used for a long period of time, the tip portion is inclined upward at a predetermined inclination angle (in the sole of a normal person, the sole is inclined upward of the toes). 5 to 2 around 13.7 degrees
0 degrees), so that when standing in footwear, the weight of the person is evenly distributed between the arch and heel (heel) of the sole, reducing the degree of fatigue of the leg muscles. it can.

In addition, a shoe sole capable of faithfully and accurately executing a walking mechanism of a bare foot of a person with good feeling of wearing and reducing fatigue of foot muscles even when walking for a long period of time can be achieved. Can be provided.

Further, the tip of the shoe sole is inclined upward at 5 to 20 degrees, which is about 13.7 degrees, which is an angle inclined upward of the toes on the sole of a normal person. Therefore, walking while wearing footwear using the sole of the present invention stimulates vases distributed on the soles of the feet, and has an advantage that a good effect on health is obtained. That is, as described above, when an accurate walking mechanism is performed, the toe is pushed forward by the elasticity of the elastic plate just before the foot leaves the ground so as to be pushed out of the ground. As a result, the soles of the feet and the arch are continuously stimulated, and the whole body is stimulated.

In particular, when the shoe sole according to the present invention is applied to a mountain climbing shoe, a phenomenon in which a foot is pushed forward from the inside of the mountain climbing shoe during a descent can be prevented, and the toe can be further protected. Also, factory workers, physicians, and nurses who need to wear footwear for a long time can expect many effects, such as reduction of fatigue, by wearing footwear using the shoe sole according to the present invention.

Finally, the sole outsole and midsole of the sole according to the present invention can maintain the above-mentioned predetermined inclination angle toward the upper end portion by the presence of the elastic plate embedded therein. In the sole of the shoe, it is possible to reduce the considerable thickness of the sole part required to make the angle of the part corresponding to the toe upward at the tip part at a specific angle, thereby reducing the product cost. It became possible to lower it.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a configuration of a shoe sole according to the present invention.

FIG. 2 is a sectional view showing a configuration of the shoe sole shown in FIG. 1;

FIG. 3 is a sectional view showing another embodiment of the shoe sole according to the present invention.

FIG. 4 is a sectional view showing still another embodiment according to the present invention.

[Explanation of symbols]

 Reference Signs List 1 outsole 1 'midsole 2 elastic plate 3 footwear α inclination angle

Claims (4)

[Claims] 1. A shoe comprising an outsole and a midsole joined to an upper part of the outsole, wherein a tip corresponding to a toe of the shoe is formed at a predetermined inclination angle toward the tip upward. At the bottom, the elastic plate is embedded inside the tip of the outsole or the midsole so that the tip of the outsole and the midsole can maintain a tilt angle of 5 to 20 degrees toward the tip upward. Featured soles. 2. The elastic plate is made of a synthetic resin or a combination of any one of a metal fine particle, a carbon fiber fine particle, a glass fiber fine particle and a glass carbon fiber fine particle with a synthetic resin, or a glass fiber fine particle and a carbon fiber fine particle. The shoe sole according to claim 1, wherein the sole is formed in combination, and a tip portion thereof is inclined upward by 5 to 20 degrees toward the tip upper direction. 3. In a shoe sole which is formed solely of an outsole and a tip corresponding to a toe of a shoe is formed at a predetermined inclination angle toward the tip upward, the tip of the outsole extends upward. An outsole, wherein an elastic plate is embedded in a tip portion of the outsole so as to maintain an inclination angle of 5 to 20 degrees toward the sole. 4. The elastic plate is made of a synthetic resin or a combination of any one of a metal fine particle, a carbon fiber fine particle, a glass fiber fine particle and a glass carbon fiber fine particle with a synthetic resin, or a glass fiber fine particle and a carbon fiber fine particle. The shoe sole according to claim 3, wherein the sole is formed in combination, and the tip is inclined upward by 5 to 20 degrees toward the tip upward.