JP2002177009A - Footwear and footwear apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a footwear with which one can form inclination while keeping a stable posture forwardly and backwardly by giving a special structure to its sole and with which one can extend the flexible range of the ankle or the like to the maximum using an aiding tool. SOLUTION: The outer edge of the sole of this footwear 1 forms a widened arc 3a which has the roughly whole top face 2 as its chord and is outward to the surface touching the ground.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to footwear such as sandals, slippers, shoes, clogs and the like. More specifically, the present invention relates to footwear having a slope at an arbitrary angle in the front-rear direction by devising a bottom structure of the footwear. The present invention relates to footwear that can be formed.

[0002]

2. Description of the Related Art The toe or the heel can be lowered by the inclination of the bottom of footwear, which has a great effect on the posture of human beings, and not only extends the Achilles tendon, lower leg muscles and thigh muscles, but also increases the pelvis. It is known that straightening the back and straightening the back, which is good for health.
Therefore, conventionally, for example, (a) footwear in which the tip portion is higher than the rear portion (JP-A-10-286104), and (b)
Hemispherical raised bottom type footwear type training apparatus
-308706) has been proposed.

[0003] The outline is that (a) is the Achilles tendon and calf due to the inclination by raising the tip of the footwear,
It aims to correct the balance of the body by stretching the hips and back muscles, stretching, and exercising the lower leg muscles and quadriceps muscles. (B) is an ankle reinforced footwear for preventing a sportsman's ankle injury and strengthening the part thereof. Since the ground contact portion is one point of the hemisphere, the contact portion is small, and the front and rear of the movable range of the ankle. It is intended that the user can perform various movements such as slanting, right and left vertical movements and ankle pronation and supination.

However, in the proposal (a), since the height (that is, the degree of inclination) of the tip of the footwear must be fixed to one, the stretchable range is fixed, and the muscle can be expanded and contracted in a free range. In the case of (b), since one point of the hemisphere provided on a part of the bottom of the footwear is in contact with the ground, the free range of exercise is wide,
There is increased instability and, on the contrary, the danger of the ankle turning too much and spraining, damaging the Achilles tendon and even falling.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned drawbacks, and has been devised to improve the structure of the bottom of footwear so that a slope can be formed while maintaining a stable posture in the front-rear direction. It is another object of the present invention to provide footwear capable of maximizing the expansion and contraction range of an ankle and the like in combination with an auxiliary device.

[0006]

According to a first aspect of the present invention, the outer edge of the shoe sole is formed in a strip shape with an arc bulging toward the grounding surface side with a chord including substantially the entire step portion. Is configured as

The invention according to claim 2 is characterized in that the outer edge of the sole of the footwear is formed in a belt-like shape along the arc bulging toward the ground contact surface side with substantially the entire step portion as a chord. Be composed.

According to a third aspect of the present invention, the outer edge of the sole of the shoe is formed in a strip shape with an arc swelling toward the ground contact surface side having substantially the entire step portion as a chord and a polygon along the arc. Is configured as

According to a fourth aspect of the present invention, the outer edge portion of the sole of the footwear is formed in a band shape with a bulge toward the ground contact surface side having substantially the entire step portion as a chord, and teeth are formed on the surface thereof. It comprises footwear and an auxiliary tool which is curved on the side opposite to the arc and has teeth formed on its surface to mesh with the bottom.

According to a fifth aspect of the present invention, the outer edge of the sole of the footwear is formed into a substantially bisecting triangle having a vertex angle on the ground contact surface side with the step portion as the base, and the step portion portion is formed on the outside thereof. An outer frame, which is formed as a string and has an arc bulging toward the ground surface side in a band shape, is detachably mounted.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention is intended for footwear 1 and refers to sandals, slippers, shoes, clogs, etc., regardless of the type.

In the first embodiment of the footwear 1, the structure of the bottom 3 is bulged toward the ground contact surface side, as shown in FIG. An arc 3a is formed in a band shape so as to be in contact with the ground surface. Here, the step portion 2 refers to a portion on the sole 3 of the footwear where the sole rests and abuts thereon. To form an arc 3a having this as a string means that the entire step portion 2 is a string. It means that a large arc is formed. The arc 3a is typically an arc obtained by dividing a part of a circle. However, the arc 3a is not an arc in a precise sense, but is also referred to as an "arc" in a sense that it includes arcs having different curvatures at the center and edges. . The band shape means that the arc forms a band having a certain width from the side surface, and means that the arc is stably contacted with a line or a surface in the band width direction in relation to a ground surface described later. Along the ground contact surface means that the arc 3a is on the ground T
When the contact point S with the ground moves along the arc 3a, the inclination angle of the step portion 2 of the footwear changes continuously (see FIG. 6). Therefore, depending on the curvature of the arc 3a, the inclination of the step portion 2 of the footwear varies.
The greater the curvature, the more the angle changes. The smaller the curvature, the more the angle changes. Therefore, the arc 3a
The curvature setting should be changed according to the wearer's preference, but for beginners it is appropriate that the arc curve is gradual, while for those who are accustomed to a certain degree, the curvature is increased and the angle with the ground contact surface is increased. It is preferable to make the difference large.

Next, in a second mode, instead of the above-mentioned "arc 3a", a "polygon 3b along the arc" is used. There is a danger that the posture may be lost due to the loss of stability, and in order to suppress the risk, a polygon 3b in which a certain amount of braking is applied to the forward and backward movements (see FIG. 3). Although the number of corners of the polygon 3b is arbitrary, it is preferable that the number of corners is six or more from the viewpoint that the inclination of the step part 2 can be freely set.

The arc 3a and the polygon 3b may be formed independently of each other.
It is also possible to adopt a mode in which the arc 3a bulging toward the ground contact surface side and the polygon 3b along the arc 3a and the polygonal shape 3b are formed in a strip shape with substantially the entirety of the platform 2 as a chord (third mode, not shown).

The shape of the step portion 2 is not limited because there are various forms, but as shown in the figure, a flat portion is generally formed. However, as shown in FIG. 4, a concave portion 2a is formed on the lower side, and a projection 2b is formed on a portion that contacts the arch portion.
Is provided, the protrusion 2b presses the arch portion to obtain an acupressure effect. In addition, since the entire bottom is depressed, the position of the center of gravity of the user when wearing is lowered, so that the user can stably perform raising and lowering of a toe, a pseudo walking motion, etc., which will be described later, and support the projection 2b. This prevents the foot from coming off the footwear during exercise.

Next, in a fourth embodiment, the sole 3 of the footwear is formed as a chord with substantially the entire step part 2 as a chord, and an arc swelling toward the ground contact side is formed in a band shape, and teeth 3c are formed on the surface thereof. And
Auxiliary tool 1 curved to the opposite side of the arc to form arc 11 and having its surface formed on teeth 11a meshing with the bottom.
0 is arranged. As described above, the curvature of the arc 3a can be changed as desired, but there is a certain limit because the step 2 is a string. Therefore, the auxiliary tool 10 having the curved arc 11 formed on the opposite side to the arc is provided, and the teeth 3c and 11a meshing with each other are formed for the purpose of preventing the two from falling off. When the footwear meshed with the footwear is moved forward and backward on the aid 10, a sinking effect is exerted, and the inclination of the step part 2 is about twice that of the case without the aid. Can be obtained.

Further, in a fifth embodiment, as shown in FIG. 5, the structure of the sole 3 is formed as a substantially bisecting triangle 3d having a footrest as a base and a tread side as a vertex, as shown in FIG. Along with
An outer frame 3e, which is formed on the outer side of the stepped portion with substantially the entirety of a string and formed in a band shape with an arc bulging toward the ground contact surface side, is detachably mounted. Along the ground plane refers to a state in which two sides of the triangle 3d are in contact with the ground in the same manner as described above, and a state in which the front and rear sides of the bisected side are in contact with each other at an equal angle. The reason why the angle is set equal is to keep the front and rear balances equal and to facilitate the pseudo walking movement described later. When the contact point with the ground changes along the sides of the bisecting triangle, the inclination angle of the footrest of the footwear changes back and forth. At this time, if the apex of the triangle 3d is sharp, walking or the like becomes difficult, so that the apex may have a slightly loose curve. In this sense, the apex is not a precise bisecting triangle, but an "almost bisecting triangle". And

An outer frame 3e, which is formed in a string shape with substantially the entire step portion as a chord and bulges toward the ground contact surface side, is detachably mounted on the outside thereof. The attachment / detachment means is formed, for example, in a substantially bisecting triangle 3d on the bottom of the footwear, and grooves 4a and 4b in which the outer frame 3e can be fitted before and after the bottom are formed. The front and rear ends of the outer frame 3e curved in an arc shape are detachably fitted. When the outer frame 3e is attached, the footwear has a function of forming an arc bulging toward the contact surface side into a band shape. When the outer frame 3e is removed, the footwear has a function of substantially 2 or the like along the contact surface. The footwear has a function formed as a triangular triangle. Which one to use can be freely selected by the user according to the purpose.

Next, the operation of the footwear of the present invention will be described. In the first mode, when the user wears the footwear and stands, and then bends the ankle as it is, the contact point S between the arc 3a bulging toward the ground surface formed on the bottom and the ground T moves. Then, the inclination angle of the step portion 2 of the footwear changes continuously. So, first, align your feet, lower your heel and raise your toes, and your Achilles tendon and calf will stretch,
The biceps femoris also grows, the pelvis tightens, and the back muscles stretch (Figure 6).
B). Conversely, when the toes are lowered and the heels are raised, the calves grow, the quadriceps muscles grow, the pelvis tightens, and the back muscles grow (see FIG. 6C). At this time, the preference of the inclination angle is different for the wearer, and for a beginner, a gentle angle has a sufficient effect, but for a person who is accustomed to training, a deep angle is less effective. Stretching is very different for each individual, and the degree of stretching the muscle must be an appropriate value for each individual. However, in the footwear of the present invention, since the angle can be continuously changed, the setting is free, and it is possible to meet a wide range of requests from beginners to skilled persons.
In addition, the principle of overload, which should be powered up a little, and the principle of gradually increasing the intensity little by little without applying a strong stimulus can be observed.

In addition, it is possible to perform a movement in which both feet are changed and the foot is shifted left and right, and moved back and forth, which is very similar to a human walking movement (pseudo walking movement). In addition, the muscles of the feet can be exercised without moving the distance, that is, without moving the body, while staying at the place (see FIG. 7). This means that the exercise is light and light, and is suitable for rehabilitation purposes such as preventing elderly people with weak legs or women who are not good at exercising easily from weakening the leg muscles. .

At this time, the footwear of the present invention has a relatively large arc because substantially the entire step portion 2 is a chord, and since it is a strip, the contact with the ground becomes a line or a surface. Even if it moves, it does not swing to the left and right, and even if it moves the contact point S with the ground T or simulates walking, it can maintain a metastable posture without breaking its posture.

Next, in the second embodiment, "arc 3a"
In place of the "polygon 3b along the arc", when the vehicle is moved in the front-rear direction, the rolling by the corner is braked. As a result, while the contact movement of the arc may be too smooth and the posture may be lost due to loss of stability, it is possible to suppress it.

When the arc 3a and the polygon 3b are used together, the characteristics of both can be balanced.

Next, the arc 1 curved to the opposite side to the arc 3a
In the fourth embodiment, an auxiliary tool 10 is formed on the surface of which the teeth 11a meshing with the bottom are formed. On the ground, the bottom of the footwear is made substantially the entirety of the step portion 2 as a chord. When the footwear having the belt 3 formed with the arc 3a bulging toward it is placed and moved back and forth, the teeth 3c and the teeth 1
1a is lowered and the bottom of the footwear sinks. As a result, the angle of inclination of the step portion of the footwear is two times smaller than when the shoe is moved back and forth on flat ground.
The effect can be more than doubled. At this time, since the weight rests on the inclined platform 2, the point where the teeth 3c and 11a mesh with each other automatically moves according to the weight and the flexibility of the muscle, so that the person has a comfortable and comfortable strength. It can give a stretching effect to muscles. Therefore, it is possible to cope with a wide range of stretching from a beginner to a trained expert when the stretching is desired.

Furthermore, in the fourth embodiment, the outer frame 3e is attached and detached to form a substantially circular arc along the ground contact surface.
It is possible to select the case of forming a triangular shape. Therefore, as in the first embodiment, if the user wears the footwear and stands, and then bends the ankle as it is, the surface in contact with the ground along the bisecting triangle formed at the bottom changes back and forth, and the footstep of the footwear The angle of inclination of the part changes from front to back. As a result, when both feet are aligned and the toes are raised, the Achilles tendon and calf are stretched and have the same effect as in the first aspect, but in addition, the feet are changed and the left and right are staggered. When the exercise is performed to move back and forth, it is possible to perform a fast pseudo-walking movement back and forth, which is a light exercise, but is suitable for training the leg muscles. Therefore, by the attachment and detachment of the outer frame, a desired motion can be performed in consideration of the above characteristics.

[0026]

Based on the above configuration and operation, the present invention provides
It has the following excellent effects. (1) When the footwear of the present invention is worn and the ankle is bent back and forth, the contact point with the ground moves along the arc formed at the bottom, the inclination angle of the step portion of the footwear changes continuously, and the Achilles tendon The calf and quadriceps are stretched behind, the pelvis tightens to the back, and the back is stretched, which helps to improve health. Furthermore, if you perform an exercise that moves both feet back and forth alternately left and right, it will be very similar to a human walking movement, and it will be a light exercise with little load. It is suitable for exercise for the purpose of rehabilitation to prevent a casual woman from easily weakening leg muscles.

(2) At this time, since the angle of the footwear step portion can be continuously changed, the angle at which the toe and the heel are raised can be freely set, and it is possible to meet a wide range of demands according to the skill level. Becomes Also, since the step portion is a chord, a large arc can be taken, and since the arc is formed in a belt shape, contact with the ground or the like becomes a line or surface, and a metastable posture can be maintained, and sprains and There is no danger of falling.

(3) In the case where an auxiliary tool having teeth formed on an arc curved to the opposite side to the arc is provided, if the footwear bottom is placed on the auxiliary tool and moved back and forth, the bottom of the footwear sinks. Born, the inclination angle of the step part can bring more than twice the effect of normal, the point where the teeth mesh automatically moves according to weight and muscle flexibility, so that it is reasonable for the person, It can give a muscle a stretching effect with comfortable strength.

(4) Since the bottom can be selected from a substantially arcuate shape or a substantially bisecting triangle or both shapes, the form of exercise can be changed according to preference and skill level.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing an example of footwear of the present invention.

FIG. 2 is a side view of an embodiment in which the bottom is a polygon.

FIG. 3 is a side view of an embodiment in which a concave portion and a protrusion are provided on a step portion;

FIG. 4 is a side view of a mode in which teeth are formed on the bottom of the footwear and the surface of the assistive device.

FIG. 5 is a side view of a mode in which the bottom of the footwear is triangular and an outer frame is formed.

FIG. 6 is a schematic side view showing a case where the user wears the footwear of the present invention and performs a forward-backward movement exercise.

FIG. 7 is a perspective view of a case where a pseudo walking motion is performed by wearing the footwear of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Footwear 2 Stepping board part 3 Bottom part 3a Arc 3b Polygon 3c Teeth 3d Triangle 3e Outer frame 4a, 4b Groove 5 Thong cord 6 Rear frame 10 Auxiliary tool 11 Arc 11a Teeth

Claims (5)

[Claims] 1. An article of footwear wherein the outer edge of the sole of the shoe is formed in a band shape with a swelling arc extending substantially toward the tread surface and having substantially the entire tread portion as a chord. 2. An article of footwear characterized in that the outer edge of the shoe sole is formed in a belt-like shape along the arc bulging toward the ground contact surface side with substantially the entire step portion as a chord. 3. An article of footwear characterized in that the outer edge of the sole of the shoe is formed in a strip shape with an arc swelling toward the ground contact surface side, substantially the entire step portion being a chord, and a polygon along the arc. 4. An article of footwear in which the outer edge of the sole of the shoe is formed in a band shape with an arc swelling toward the ground contacting side having substantially the entire step portion as a chord and having teeth formed on the surface thereof, and curved to the opposite side to the arc. A footwear device provided with an auxiliary tool having teeth formed on its surface to mesh with the bottom. 5. An outer edge of the sole of the footwear is formed as a substantially bisecting triangle having an apex angle on the ground surface side with the foot portion as the base, and outside the foot portion substantially as a chord with a chord on the ground surface side. Footwear characterized in that an outer frame in which an arc bulging toward the front is formed in a strip shape is detachably mounted.