JP3184447B2 - Insoles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a running mechanism from landing to kicking, in which a vertical arch of a runner's foot, which tends to decrease in a support phase state before kicking, and a kick phase which is in a kicking state. By providing the insole body with a structure that can easily hold an easy horizontal arch, the burden on the ball of the hallux, especially during intense exercise with running or jumping, can be reduced, preventing hallux valgus or pain in the hallux valgus It is intended to provide a shoe insole that can reduce the insoles.

[0002]

2. Description of the Related Art A shoe sole provided with a bulge for holding a vertical arch or a horizontal arch in order to prevent fatigue and improve fit is already known. (Shinko 59-1161
8, actual fairness 4-39683, real fairness 3-47527).
These raised structures also have the effect of reducing the burden on the ball of the foot, and thus prevent hallux valgus, and are also commercially available as walking shoes for people who already have hallux valgus disorders.

In walking in which the vertical movement of the center of gravity is relatively small, the load on the foot is slightly larger than the weight of the shoe wearer, and the load on the toe ball is also small. Therefore, in order to reduce the load on the ball of the toe, the purpose could be achieved by forming a protuberance capable of holding a vertical arch or a horizontal arch on the sole surface of the shoe as in a conventional product.

[0004]

However, when exercising with violent movements such as running or jumping, a large load is applied to the foot that is incomparable to walking, and there is a high risk of causing hallux valgus. When this occurred, the ball of the toe was painful, and the shoe wearer was forced to suffer each time he / she wore the shoe, which was also mentally harmful.

[0005] A specific factor of the occurrence of hallux valgus will be described below by taking a running mechanism as an example. A more detailed analysis of a series of actions during the landing period from landing to kick in running, as shown in FIG. 12 , reveals that a state in which a load is first applied to the foot is referred to as a landing phase 11. The state in which the weight is supported can be divided into three stages, called the support phase 12, and the kick phase 13 immediately before the foot leaves the ground. When landing on the heel, the burden on the toe is large in the support phase and the kick phase. Therefore, here, attention is paid to the support phase and the kick phase.

In the support phase during running, since a large load is applied to the foot, the pronation (pronation) is large, and the vertical arch, that is, the CC ′ curve shown in FIG . The present inventors observed that wearing a sock with a bulge on the side of the vertical arch equivalent to the hallux valgus, which is said to be effective for hallux valgus, showed that the soft tissue of the vertical arch part of the sole of the foot was crushed and It turned out that it was protruding.
The reason for providing the ridge in the vertical arch part is to prevent the vertical arch from lowering, but if the soft tissue protrudes inside,
The purpose cannot be fulfilled enough. In other words, only the elevation of the vertical arch portion conventionally used as a countermeasure for hallux valgus caused the vertical arch to decrease due to a large load and pronation, and the burden near the hallux did not decrease much.

In the kick phase, since the load on the stepping portion is large, the lateral arch, that is, the DD ′ curve shown in FIG. 11 , cannot support the load, and gradually decreases to increase the foot width of the portion. At that time, the metatarsal moves inward, and the distal phalanx at the tip of the toe moves outward by pulling by the extensor muscle of long toe, so that the hallux valgus further advances. Furthermore, during the final phase of the kick phase, the load concentrates near the ball of the foot, causing a gap between the outer seed bone and the metatarsal head and soft tissue above it, causing pain in the ball of the foot . The protuberance that holds the lateral arch part, which has been used in the past, has the effect of supporting the lateral arch, but during intense exercise, it is not possible to fully support the protuberance provided by the large load alone, causing pain to the toe. It didn't go away.

Similarly, in the kick phase, the metatarsophalangeal joint bends in a state where the stepping part touches the ground and the heel tilts outward, so that a twist is generated between the heel and the stepping part, and the inside of the upper of the shoe upper is formed. It is known to be stretched. When the inside of the upper of the shoe is stretched, the pressure on the side of the ball increases,
Hallux valgus pain was promoted. When jumping, a greater load is applied to the foot than when running, and the same problem may occur. Therefore, it cannot be solved only by the elevation of the vertical arch part or the horizontal arch part which has been conventionally used,
It was a factor that caused hallux valgus or increased pain in hallux valgus.

Accordingly, the present invention provides a more secure retention of the vertical arch of the sole of the shoe wearer's sole and the transverse arch in the kick phase, especially during intense exercises such as running and jumping, especially in the support phase. It is another technical object of the present invention to provide a shoe insole that protects the side surface of the ball of the toe, thereby preventing hallux valgus or reducing pain of the hallux valgus.

[0010]

In order to solve the above-mentioned problems, a shoe insole according to a first aspect of the present invention comprises a vertical arch-equivalent side formed in a foot step portion and a horizontal portion formed in a front tread central portion. In the area including the arch-equivalent part side, arbitrarily shaped ridges are provided to hold these arches, and a curved or semicircular winding is set on the inner edge of the insole body from the calcaneus-equivalent part to the metatarsal equivalent And the thickness of the insole body from the heel
In the area leading to the front tread, is it the longitudinal center
The figure shows an inclined portion that is gradually thicker from the inner edge to the inner edge .

[0011] Next shoe insole of a second aspect of the invention is, in part not stepped on the foot
At the vertical arch-equivalent side and the center of the front tread
In the area including the side corresponding to the horizontal arch to be formed,
Provide a ridge of any shape to hold the
Curved to the medial edge from the calcaneus to the metatarsal
Or set a semi-circular winding and inside the insole body
Curved or semicircular on the side corresponding to the toe ball on the side edge
Is set up.

Furthermore shoe insole of the third invention, the first Moshiku
In the second invention, a curved or semicircular roll-up is set on a side corresponding to a little toe ball on the outer edge of the insole body.

[0013]

Next, the principle of the present invention will be described. According to the present invention, arbitrarily shaped ridges for holding these arches are provided in a region including a vertical arch-equivalent side formed at the foot step portion and a horizontal arch-equivalent side formed at the front tread central portion. In addition, a curved or semi-circular roll-up is set on the inner edge from the heel bone equivalent part to the metatarsal equivalent part of the insole body, and the curved part of the foot ball corresponding part
Has set a semi-circular winding to prevent the soft tissue of the vertical arch part from being crushed by the load of the shoe wearer and protruding to the side, and preventing the lowering of the vertical and horizontal arches before the mother of the shoe wearer It can reduce the burden on the toe ball and prevent the occurrence of hallux valgus.

[0014]

FIG. 1 is a plan view showing the upper side of a shoe insole according to the present invention, FIG. 2 is a bottom view thereof, and FIG. FIG. FIG. 4 is a sectional view of a step portion. As shown in the drawing, the shoe insole according to the present invention is provided with a ridge 2 in an area including a vertical arch and a side corresponding to a horizontal arch, and as shown in the structural diagram of a human foot bone in FIG. A semicircular roll-up 3 on the inner edge of the insole corresponding to the area of the bone 8 and a half
That it has established a circular winding 4. At this time, a flexible sponge rubber such as EVA and polyurethane is used as the insole body. Further, there is a method of integrally forming the insole main body 1 and the ridges 2 and the windings 3 and 4 with the same material, but the present invention includes the case of forming each with a different material. In the case of using a heterogeneous member, it is time-consuming and costly to join each part with an adhesive, but it is possible to use a finely adjusted hardness of each part. Can be prevented. Thus by providing such wound up 3 and 4, unilateral deviation and mother趾球inwardly of itself this hoisting 3 and 4 inwardly of <br/> foot by strenuous exercise shoes wearer
To prevent the unilateral movement of the arch and prevent the vertical and horizontal arch from lowering.

In order to confirm the effects of the present invention, the present inventors prepared two types of the product of the present invention, and a conventional insole having no bulge, roll-up or inner thickness. Eleven people who play volleyball or tennis with running and jumping as their main movements and have hallux valgus were asked to compete with two types of insoles. The effect of the insoles on the pain of the hallux valgus was heard, and the height of the vertical arch before and after the practice, the inward inclination of the heel, and the degree of valgus valgus were measured. The height of the horizontal arch is not measured for measurement reasons.
As a result of the survey, seven out of eleven people in the conventional insole answered that the hallux valgus was painful, but in the insole of the present invention, only two out of eleven people answered that the hallux valgus was painful. FIG. 13 shows the difference in height of the vertical arch on the affected side before and after exercise, FIG. 14 shows the difference in the inward inclination of the heel before and after exercise, and FIG. 15 shows the difference in valgus before and after exercise. In the conventional insole, the heel tilted inward after the exercise, the vertical arch became lower, and the hallux valgus was larger than before the exercise. On the other hand, the heel of the prototype insole did not tilt inward after practice, the vertical arch became high, and the hallux valgus was smaller than that of the conventional insole.

That is, according to the present invention, during intense exercise including running and jumping, the inward inclination of the heel is reduced, the vertical arch is prevented from lowering, and the hallux valgus is prevented from increasing. Could be reduced. Reducing pain means that the burden on the toe is reduced, in other words, it is also considered that there is an effect of preventing a person who is not a hallux valgus from becoming a hallux valgus. Next, FIG. 5 shows a modified shoe insole, (1) showing a bottom view thereof, and (2) showing a sectional view of a step portion. As shown in FIG. 5 (1), the present invention provides a shoe insole provided with an inclined portion 6 whose thickness is gradually increased from the center in the longitudinal direction to the inner edge in the region from the heel portion to the front tread portion. Is shown. Although the inclined portion 6 shown in FIG. 5 (2) shows a member to which an inclined member is attached from the bottom side, the inclined portion 6 may be formed integrally with the insole body. In addition to providing the inclined portion 6 on the bottom surface side of the insole main body, providing the inclined portion 6 on the upper surface side is also included in the present invention.

6 and 7 show the ball of the foot of the shoe wearer.
With semicircular windings 4 and 5 in the corresponding part of the toe ball
Is shown. At this time, the roll-up 5 of the toe ball is shown in the figure.
It is a semi-circular shape, and the roll-up 4 provided on the part corresponding to the toe ball
It is slightly smaller. In this way, winding 4 and
5 prevents the wearer from spreading in the width direction.
It stops and lowers the horizontal arch.

Further, the bulge 2 provided in the region including the side corresponding to the vertical arch and the horizontal arch in the above-described four embodiments,
As shown in FIG. 8 , the protrusion may be divided into a ridge 9 of a vertical arch portion and a ridge 10 of a horizontal arch portion. If a ridge that holds the vertical arch and the horizontal arch portion is provided, the shape is limited. It is not something to be done.

[0019]

Therefore, according to the present invention, these arches are retained in a region including a vertical arch-equivalent side formed at the footstep portion and a horizontal arch-equivalent side formed at the center of the front tread portion. Rutotomoni provided a raised any shape, set the curved or semi-circular wound on the inner edge leading to metatarsal-corresponding portion from the heel bone corresponding portion of the insole body and the insole body
In the area from the heel to the front tread
Incline that gradually increases from the center in the longitudinal direction to the inner edge
Set the part or at the inner edge of the insole body,
A curved or semi-circular roll-up
As a result, the soft tissue of the arch is prevented from being crushed by the load of the shoe wearer, and the longitudinal and horizontal arches are prevented from lowering, thereby reducing the burden on the toe ball of the shoe wearer and generating hallux valgus. Can be prevented.

[Brief description of the drawings]

FIG. 1 is a plan view showing the upper surface side of a shoe insole according to the present invention.

FIG. 2 is a bottom view of the shoe insole of the present invention.

FIG. 3 is an inner side view of the shoe insole according to the present invention.

FIG. 4 is a sectional view of a step portion of a shoe insole according to the present invention.

FIG. 5 is a bottom view and a main part sectional view of a shoe insole according to the present invention.

FIG. 6 is a plan view showing the upper surface side of the shoe insole according to the present invention.

FIG. 7 is a bottom view of the shoe insole according to the present invention.

FIG. 8 is a plan view showing the upper surface side of the shoe insole according to the present invention.

FIG. 9 is a plan view illustrating a skeleton shape of a human foot.

FIG. 10 is a side view showing a skeleton shape of a human foot.

FIG. 11 is a schematic sectional view showing a skeleton shape of a human foot.

FIG. 12 is an explanatory diagram of a running operation.

FIG. 13 is a measurement diagram showing the state of the foot before and after practice.

FIG. 14 is a measurement diagram showing the state of the foot before and after practice.

FIG. 15 is a measurement diagram showing the state of the foot before and after practice.

[Explanation of symbols]

1 Insole 2 Uplift in the range from vertical arch to horizontal arch 3 Rolling up the inner edge of the insole in the range from the calcaneus to the metatarsal 4 Rolling up the inner edge of the part corresponding to the toe ball 5 Partial area corresponding to the toe ball Rolling up of outer edge 6 Inclined part 7 Calcaneus 8 Metatarsal 9 Uplift of vertical arch 10 Uplift of horizontal arch 11 Landing phase during running contact phase 12 Support phase during running contact phase 13 Running contact phase Kick phase

Continuing from the front page Examiner Hiroshi Ogawara (56) References Japanese Utility Model Hei 2-59607 (JP, U) Japanese Utility Model Hei 1-103304 (JP, U) Japanese Utility Model Hei 3-127508 (JP, U) Sportsmedicine, No. 7 Vol. 2, No. 2 (1995-6-30), Bookhouse H.D., p. 63-64, p. 82, p. 85 (58) Field surveyed (Int. Cl. ⁷ , DB name) A43B 17/00

Claims (3)

(57) [Claims] An arbitrarily-shaped ridge for retaining these arches is provided in a region including a vertical arch-equivalent side formed in a foot step portion and a horizontal arch-equivalent side formed in a center portion of a front tread portion. , Set a curved or semicircular roll-up on the inner edge from the heel bone equivalent part to the metatarsal equivalent part of the insole body, and trample the insole body thickness from the heel to the front
From the longitudinal center to the inner edge
Shoe insole with a gradually increasing slope . 2. An arbitrarily-shaped ridge for holding these arches is provided in a region including a vertical arch-corresponding side formed in a foot step portion and a horizontal arch-corresponding side formed in a center portion of a front stepping portion. A curved or semi-circular roll-up is set on the inner edge from the calcaneus equivalent to the metatarsal equivalent of the insole body, and
Curved or semi-circular roll-up on the side corresponding to the toe ball
In the shoe insole. 3. The shoe insole according to claim 1 , wherein said insole body has a curved or semicircular roll-up on a side corresponding to a toe ball on an outer edge thereof.