Patent Application
20250009068
The present invention relates to an insole for body correction, and more specifically, to an insole for body correction, which allows a pedestrian to have normal walking during walking and allows the pedestrian to quickly recover (relax) from a phenomenon of curving, bending, tilting, or folding, which occurs in the lower body (pelvis, knee, or ankle) of the pedestrian, so as to allow the pedestrian to maintain walking with his or her spine straight.
Generally, walking refers to a repeated repetition of legs to allow the body to move forward.
That is, when the body moves forward, one leg supports the movement and the other leg moves forward, and both feet remain attached to the ground while the body weight is transferred from one leg to the other leg, and the walking cycle is continuously repeated by the respective legs while switching roles of the legs until the body weight reaches a target point.
The walking cycle during walking is classified into a stance phase and a swing phase.
For example, the stance phase is a process from contacting the right heel to taking the right toes off, which occurs when the right heel supports the body weight while making contact with the ground.
The swing phase is a process from taking the right toes off to contacting the right heel again, which is a phase in which the right foot is in the air, and the foot moves forward until the foot makes contact with the ground again.
In terms of normal waking speed, the stance phase accounts for about 60% of the waking cycle, and the swing phase accounts for the remaining 40%.
Most of the problems of the legs during the walking cycle occur in the stance phase, and it is known that such a phenomenon is due to the amount of impact caused by weight bearing.
It is known that the amount of impact of 1 to 2 times the body weight is generated when a pedestrian walks and the amount of impact of 2 to 3 times the body weight is generated when the walker runs, and such an amount of impact acts as a stress, and accumulation of the excessive stress may cause damage to the feet.
Meanwhile, in the process of living not only during walking but also sitting in a chair for a long time, there is a lot of body imbalance in which the body is leaned to one side due to the unbalanced posture habit.
As representative symptoms caused by such a body imbalance phenomenon, scoliosis and kyphosis, which are asymmetrically unbalanced symptoms, are known.
Scoliosis is an unbalanced symptom that occurs when the symmetrical center line between the toes of both feet is twisted in the 11 o'clock direction or the 1 o'clock direction, and the upper body corresponding thereto is tilted like a twist in the opposite direction.
Kyphosis is a symptom in which the spine is bent back when viewed from the side, and causes twisting of the ankle joint, pelvic deformation, and spinal deformity, resulting in pain in the neck, waist, pelvis, knees, feet, or the like.
As a method for correcting the body imbalance, a method using corrective surgery and a method using a correction device are known.
The method using the corrective surgery is not highly preferred in terms of surgical side effects and cost, and the method using the correction device has a problem of causing a lot of inconvenience in performing daily life due to the long-term use of the correction device.
In recent years, technology development for using an insole as a correction device has been actively conducted.
However, most of the technology development is occupied by functional parts such as impact mitigation or absorption due to the hardness of the insole or the insertion of the structure, and the technology development for correcting the body imbalance causing symptoms such as scoliosis is still insufficient.
To meet the demands for technology development to correct the body imbalance, Patent Literature 1 (Korean Registered Patent No. 10-2049077), which was previously filed by the present applicant, discloses an insole for body correction including: a bottom plate including a first point which is a point making contact with an outside of a heel during normal walking, and a second point which is a point where a stepping pressure moves inward from a rearfoot part to a forefoot part; and a top plate installed on an upper surface of the bottom plate while being stacked, and including an upward inclined surface in which a part corresponding to a metatarsal bone is inclined at an angle of 13° to 14° from an outside to an inside, in which a virtual reference line passing through the first point and the second point is formed at an angle of 30° based on a virtual line horizontal to a length direction of the bottom plate, an inclined surface that is upwardly inclined on the basis of the virtual line from a boundary of the reference line toward the inside is provided, and the inclined surface, which is formed on a heel bone between the first point and the second point, is formed at an angle of 16° to 20°.
In addition, the foot having an abnormal ankle movement during walking maintains walking while causing curving, bending, tilting, or folding based on a sagittal plane (a plane dividing the body into left and right), and in this case, the lower body of a pedestrian naturally causes an adduction phenomenon in which the foot is bent inward to disperse a load received by the ankle.
That is, the pedestrian having the abnormal ankle movement attempts to maintain a balance between the lower body and the spine by naturally causing the adduction phenomenon in order to compensate for an external imbalance of the lower body (pelvis, knees, or ankles).
However, in the above-described Patent Literature 1, the spine may be straightened by inducing the pelvis or ankle to return to its original position without causing the adduction phenomenon in a stationary state other than walking or running state, but the upward inclined surface, which is formed at an angle of 30° based on the virtual line horizontal to the length direction of the bottom plate, and which is inclined from the boundary of the reference line toward the inside, is provided, so that an area, which makes contact with a heel bone of the pedestrian during walking or running, becomes wider, thereby causing an outer imbalance of the lower body (pelvis, knees, or ankles), resulting in a problem of accumulating fatigue of the foot.
Moreover, as described above, in order to recover fatigue of the foot accumulated according to the external imbalance caused during walking or running, a time for recovering the bent or tilted lower body and spine to be straightened is lengthened, and in order to compensate for the recovery time, the adduction phenomenon is expressed and the muscles around the hip joint are strongly tensioned, which increases the pressure on the joints or spine of the pedestrian, and thus as the pedestrian walks or runs with increased overall muscle tension, the pedestrian has no choice to maintain the walking or running in a bent or curved state without expectation of the spinal correction.
The present invention has been devised to solve the above-described problems, and an object of the present invention is to provide an insole for body correction, and more specifically, to an insole for body correction, which allows a pedestrian to have normal walking during walking and allows the pedestrian to quickly recover (relax) from a phenomenon of curving, bending, tilting, or folding, which occurs in the lower body (pelvis, knee, or ankle) of the pedestrian, so as to allow the pedestrian to maintain walking with his or her spine straight.
To achieve the above object, an insole for body correction according to the present invention includes: a bottom plate including a first point which is a point making contact with an outside of a heel during walking, and a second point which is a point where a stepping pressure moves inward from a rearfoot part to a forefoot part; and a top plate seated on the bottom plate and coupled to the bottom plate to form a stack, and including an upward inclined surface in which a part corresponding to a metatarsal bone is inclined at an angle of 13° to 14° from an outside to an inside, in which a virtual reference line passing through the first point and the second point may be formed at an angle of 30° based on a virtual line horizontal to a width direction of the bottom plate, an inclined surface that is upwardly inclined from a boundary of the virtual reference line toward the inside may be provided, and the inclined surface, which is formed on a heel bone between the first point and the second point, may be formed at an angle of 16° to 20°.
The bottom plate may have a thickness of 0.5 to 1.0 mm, and an outer part of the bottom plate on a basis of the reference line may be formed with the same thickness within an error range of 0.1 to 0.2 mm.
The inclined surface formed on the heel bone between the first point and the second point may form an inclined surface that is upwardly inclined toward an outer part with a thickness of 1.0 mm to 2.8 mm.
The top plate may be formed of a material that is softer than a material of the bottom plate.
Therefore, the insole for body correction according to the present invention can allow a pedestrian to have normal walking during walking and allow the pedestrian to quickly recover (relax) from a phenomenon of curving, bending, tilting, or folding, which occurs in the lower body (pelvis, knee, or ankle) of the pedestrian, so as to allow the pedestrian to maintain walking with his or her spine straight.
Hereinafter, a configuration and an effect of a specific embodiment of the present invention will be described in detail with reference to the accompanying drawings.
In this case, in adding reference numerals to elements of each drawing, it should be noted that the same elements are denoted by the same reference numerals as possible even though they are shown in different drawings.
In addition, in describing the present invention, a detailed description of related known functions or configurations will be omitted in order not to obscure the gist of the present invention.
In addition, when a certain part “includes” a certain component, this means that other components may be further included, rather than excluding other components, unless otherwise stated.
In addition, in describing the present invention, a width direction will be described based on a direction forming the ball of the foot (a horizontal direction based on
In addition, it will be described that the expression “inside” refers to each component, a part located in an inside defined by each component, or a part located in the direction thereof, and the expression “outside” refers to a part located opposite to the inside or a part located in the direction thereof.
The present invention relates to an insole for body correction, which allows a pedestrian to have normal walking during walking and allows the pedestrian to quickly recover (relax) from a phenomenon of curving, bending, tilting, or folding, which occurs in the lower body (pelvis, knee, or ankle) of the pedestrian, so as to allow the pedestrian to maintain walking with his or her spine straight.
To this end, the configuration of the insole for body correction according to the present invention may include a bottom plate 11 and a top plate 12 as shown in
First, as shown in
The bottom plate 11 has a structure that is upwardly inclined toward the inside of the bottom plate 11 by using a progression line as a reference line 13, in which the progress line passes through a first point f1, which is a point making contact with an outside of a heel, and a second point f2, which is a point where a stepping pressure moves inward from a rearfoot part to a forefoot part, in order to provide a uniform pressure across the foot by distributing the pressure concentrated at an angle of 30° from the outside to the inside of the foot when the foot lands on the ground.
That is, after the foot lands on the ground, an inner part of the heel bone makes contact with the ground and walking is started, and after the heel bone lands on the ground, the forefoot part lands on the ground, the second point f2 refers to a boundary part of the rearfoot part before a foot arch is started.
Although there may be some individual differences depending on structural characteristics of the foot arch, the pressure applied to the sole of the foot when the foot lands on the ground for walking causes a tilt phenomenon at an angle of approximately 30° from the outside to the inside, resulting in an imbalance phenomenon of a posture that is inclined from the outside to the inside.
Therefore, according to the present invention, the first point f1 and the second point f2 are connected to the bottom plate 11 using the reference line 13 having an inclination of 30° based on a virtual line 14, and an inclined surface 11a, which is inclined upward toward the inside of the reference line 13, that is, toward the inside from the reference line 13, is formed to distribute the pressure from the inside to the outside of the bottom plate 11 on the basis of the reference line 13.
Accordingly, normal walking may be induced by applying the uniform pressure across the foot during walking.
In particular, in order to overcome the problem or limitation of the related art, the technical point of the present invention is to form the virtual reference line 13 passing through the above-described first point f1 and second point f2 based on the virtual line 14 horizontal to a width direction of the bottom plate 11, unlike a conventional virtual line horizontal to a length direction of the bottom plate 11, which is described in “Korean Registered Patent No. 10-2049077 (published on Nov. 26, 2019)” previously filed by the present applicant as described above.
Accordingly, it is possible to solve the problem of accumulation of foot fatigue caused by an imbalance of the outside of the lower body (pelvis, knees, or ankles) due to a widened area contacting with a heel bone side of the pedestrian during walking or running by wearing the conventional insole.
Moreover, it is also possible to solve the problem in which in order to recover the foot fatigue accumulated due to the imbalance of the outside caused during walking or running, a time for recovering the bent or tilted lower body and spine to be straightened is lengthened, and in order to compensate for the recovery time, the adduction phenomenon is expressed and the muscles around the hip joint are strongly tensioned, which increases the pressure on the joints or spine of the pedestrian, and thus as the pedestrian walks or runs with increased overall muscle tension, the pedestrian has no choice to maintain the walking or running in a bent or curved state without expectation of the spinal correction.
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On the other hand, it can be confirmed that when the pedestrian walks by wearing the insole for body correction according to the present invention, the recovery speed of the above-described phenomenon of the imbalance of the outside (curving, bending, tilting, or folding) is fast, so that the walking may be maintained in a state in which the lower body and the spine of the pedestrian are straightened.
Meanwhile, in order to compensate for the angle at which the heel bone of the foot collapses, the bottom plate 11 of the present invention preferably sets an inclination of the heel bone between the first point f1 and the second point f2 of the bottom plate 11 to 16° to 20°.
As described above, as the angle at which the heel bone collapses after foot lands on the ground during walking is within a range of 16° to 20°, the present invention allows compensation for the angle by setting the upward inclination of the heel bone between the first point f1 and the second point f2 of the bottom plate 11 to 16° to 20°, thereby realizing the effect of straightening the spine.
For example, when the inclination of the heel bone is out of 16° to 20°, a forward inclination of the pelvis may be severe, the correction for shaking of the left and right sides may be difficult, and the hip rotation of the legs may be increased.
Moreover, an outer portion of the bottom plate 11 of the present invention has a thickness that is preferably the same as or approximately 0.5 to 1.0 mm, in which the outer part on the basis of the reference line 13 may be formed with the same thickness within an error range of 0.1 to 0.2 mm.
In addition, the inclined surface 11a formed on the heel bone between the first point f1 and the second point f2 may form an inclined surface 11a that is upwardly inclined toward the outer part with a thickness of 1.0 mm to 2.8 mm.
As described above, the present invention allows compensation for the pressure at 30°, which is applied from the outside to the inside when the foot lands on the ground for walking, from when the shoes are worn through the improvement of the structure of the bottom plate 11, so that stable normal walking may be induced, and the present invention allows compensation for the angle (16° to 20°) at which the heel bone of the foot collapses when the foot lands on the ground for walking, so that the spine is straightened during walking or running, thereby preventing and reducing the body imbalance.
Meanwhile, as shown in
That is, the bottom plate 11 of the present invention is formed of a relatively hard material such that a progression angle of the heel bone at 160° to 20° does not collapse, whereas the top plate 12 is formed of a material that is relatively softer than the material of the bottom plate 11 for impact migration and absorption.
For example, the top plate 12 may be formed of polyurethane, rubber, or silicon, which is a soft material having elasticity so as to be closely adhered along a curved surface on the bottom plate 11, and may be formed of any material that is softer than the bottom plate 11.
In addition, as shown in
For example, the top plate 12 may have a structure that is inclined upward from the fourth metatarsal bone or the third metatarsal bone to the first metatarsal bone (big toe).
Furthermore, the windlass mechanism means that the effective movement of the plantar fascia and the spring ligament causes the motion of the foot joint having a windlass effect in order to maintain the inner foot arch during walking.
Like the top plate 12 according to the present invention, a part corresponding to a foot bone is formed to have an upward inclined surface at 13° to 14° from the outside to the inside of the top plate 12, thereby improving the windlass mechanism by improving the windlass effect of the foot when the foot is lifted after the foot lands on the ground.
For example, when the angle of the inclined surface is less than 13°, strain may occur in the calf muscle during walking, and when the angle of the inclined surface is greater than 14°, pain may occur in the sole of the foot, particularly, the first metatarsal bone during walking.
Although the present invention has been described above with reference to specific embodiments, the present invention is not limited to the above embodiments, and various changes and modifications may be made without departing from the spirit of the present invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-2021-0144807 | Oct 2021 | KR | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/KR2022/095129 | 10/19/2022 | WO |
