JP2001269201A - Insoles - Google Patents

Abstract

(57) [Summary] [Problem] A shoe insole that prevents overpronation of a heel portion and overspinning of a stepping portion, promotes a tilting walking run, and is excellent in walking running stability, impact relaxation, and fit. The present invention prevents the failure of the feet and legs and the failure of the ball joints of the first and second fingers in the elderly walking. An insole body (20) composed of a soft cushioning foam is covered with an outer wall (11) provided on the outer periphery, and the side surface of the insole body (20) is covered from the heel portion to the step surface of the insole body (20). A half-lay stabilizer 1 was attached. A punched portion 12 is formed at the center of the heel of the stabilizer 1, and a plurality of tapered punched portions 11 are formed on the outer wall 111 on the inner arch portion side.
11.1111. . . However, a punched portion 13 having a shape of three months or half a month is formed in the outer arch portion, and these punched portions are exposed and filled with the cushioning insole main body 20. Further, the ball joint portion from the first finger to the second finger of the foot is formed. A depression 21 is provided in a corresponding stepping portion of the insole body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shoe insole.

[0002]

2. Description of the Related Art Conventionally, a semi-laminated stabilizer 1 having an outer wall standing around the outside of the heel portion without stepping from the heel portion according to Japanese Patent Publication No. 59-29242, Japanese Utility Model Publication No. 61-22484, etc. There has been proposed one that is worn from the part to the bottom of the part without stepping on the part. This kind of shoe insole has good cushioning property and stability of the heel portion when worn, and is awarded as an insole for athletic shoes.

[0003] In normal adult walking and running, two medial and lateral vertical arches along the longitudinal direction of the foot, ie, the medial arch from the calcaneus to the head of the first metatarsal bone and the calcaneus. An outer longitudinal arch from the first to the fifth metatarsal head, two lateral arches in the lateral direction of the foot, a first lateral arch from the first wedge bone to the tip of the cuboid bone, A second horizontal arch composed of a ball portion extending from the head of the metatarsal to the head of the fifth metatarsal walks while absorbing the landing impact pressure caused by the weight load. And in the walking and running process, the weight load is first applied to the back of the heel while being prone from the outside to the inside of the heel, and then gradually stepping forward along the back of the outside of the foot in the longitudinal direction of the foot from the back of the heel. The ball of the first finger is deflected on the back surface of the ball portion of the fifth finger, that is, the back surface of the joint portion of the fifth metatarsal bone and the fifth base phalanx. While rolling to the joint back surface, that is, the joint back surface of the first metatarsal bone and the first base phalanx, the foot is moved by stepping on the ground, and then the first base phalanx and the first distal phalanx are warped and pitched. While holding the ground strongly with the back surface of the first distal phalanx (first finger),
It is said that the user walks while repeating the process of moving forward by kicking the ground with a finger, particularly the 1.2.3 finger, so-called "tilting walking". It is said that a dynamic maximum impact pressure is applied to the ball joint between the first finger and the second finger immediately below the heel of the central part of the heel and the ball joint between the first finger and the second finger in such a yaw walking.

In recent years, rubber and EVA have been used as shoe soles such as outer soles and intermediate soles from the viewpoint of weight reduction and cushioning of shoes.
Such elastic foams as cushioning have come to be used. When walking or running while wearing these shoes with elastic foam soles, a weight of 1.
A dynamic load equivalent to 2 to 3.0 times is imposed, and this is combined with the cushioning of the sole and the outer part of the heel is rapidly compressed, and then the heel of the foot in the shoe is rapidly elastically restored. Overpronation, that is, overpronation,
It has been pointed out that damage to the knee joint is caused.

On the other hand, it is said that Japanese have more valgus feet, so-called O-legs, than Westerners. It has also been pointed out that in the case of the O-leg, the stepping portion of the foot is excessively supranated, that is, overspins, at the early stage of stepping, that is, when the ball joint portion of the fifth finger lands, causing damage to the knee joint. In addition, weight loss is concentrated on the ball joints of the first and second fingers when stepping on the elderly walking with reduced walking function due to the deterioration of foot muscles and ligaments due to aging. Obstacles have been pointed out.

In view of the above, in the conventional shoe insole, overpronation of the heel portion and overspinning of the step portion cannot be sufficiently prevented in the walking and running process. On the other hand,
The impact relaxation at the ball joint between the first finger and the second finger was insufficient.

[0007]

SUMMARY OF THE INVENTION The present invention prevents overpronation of the heel portion of a foot and overspinning of a stepping portion during walking with a shoe insole, promotes a tilting walking and stabilizes walking and running. Insole with excellent wearability, shock resilience and fit, preventing wearer's foot and leg obstacles and ball joint failure between the first and second fingers in elderly people's walking What you want to do.

[0008]

According to the present invention, an insole body 20 made of a soft cushioning foam is covered with an outer wall 11 erected on the outer periphery, and the insole body is provided. 20 is an insole equipped with a stabilizer 1 having an insole shape from the heel portion to the stepping portion (arch portion) lower surface, that is, from the heel portion to the stepping portion, and in the center of the heel of the stabilizer 1 The punching portion 12 has a plurality of tapered punching portions 1111.
1111. . . However, a three-month to half-moon-shaped punched portion 13 is formed in the outer arch portion, and the cushioned insole body 20 is exposed and filled in the punched portion.
Insole body 2 corresponding to the bow joint of the first finger to the second finger
The gist of the present invention is a shoe insole characterized in that a depression 21 is provided in a stepping portion of the shoe.

In the present invention, the stabilizer 1 is made of a synthetic resin material such as semi-rigid or hard rubber, polyurethane, EVA, ABS, polyamide or the like substantially along the shape of the heel portion of the insole body from the heel portion. The outer wall 11 is integrally erected on the periphery of the stepping portion, and a circle or an ellipse, an oval, and a drop are formed at the center of the heel, that is, a portion corresponding to a portion immediately below a portion protruding below the calcaneus. A punching portion 12 having an appropriate shape such as a shape, and a plurality of tapered cutout portions 1111.1 such as a saw blade shape, a wavy shape, and a mountain shape are formed on the outer wall 111 of the inner arch portion.
111. . . Are formed. The outer arch portion is formed with a three-month to half-moon punched portion 13 extending from the tip to the tip of the heel, leaving 1/2 to 1/3 of the outer side of the longitudinal center axis of the insole. And, if necessary, longitudinal reinforcement ribs 14.14... Adjacent to the outer wall 11 of the inner arch. . . Can also be provided.

In the present invention, the insole body 20 is a JRIS
-0101 hardness (hardness by compression hardness test according to the Japan Rubber Association Standard on Physical Test Methods for Expanded Rubber), that is, a soft EVA foam having a c-type hardness of 30 to 50;
1.2 Made of cushioning material such as polybutadiene foam, polyurethane foam, latex foam, rubber foam, etc., and on its upper surface is a soft overlay of cloth, leather, etc.
01 is given. If necessary, by attaching this overlay 201 via a foam 202 having excellent flexibility such as latex foam or chloroprene rubber foam, it is possible to further improve the feeling of touch when worn. .

In the present invention, the stabilizer 1
Covers the side of the insole body 20 with its outer wall 11,
Each of the punched portions 12, 1111.
1111. . . , 13 are filled with the insole body 20 to be exposed, and are laminated from the heel portion of the insole body 20 to the lower surface of the insole portion. For lamination, the insole body 20 is made of EVA foam,
(2) It is composed of a heat-softening foam such as polybutadiene rubber foam, the insole body 20 is placed on the stabilizer 1 in a mold, and this is heated and compression-molded by a lid mold.
If so-called compression molding is performed, the insole body 20 is softened and compressed, and each of the punched portions 12, 1111.111 is formed.
1. . . , 13 can be filled and molded, respectively, and therefore, it is convenient to carry out this method.

In the present invention, the recessed portion 21 provided on the stepping portion of the insole body 20 is provided between the first finger and the second finger of the insole body.
Although it is provided in a portion corresponding to the ball joint portion of the finger, it may be a concave portion provided on the upper surface of the insole body 20 or provided on the lower surface of the insole body 20 as shown in FIG. It may be a hollow recess formed. In the case of the hollow recess 21 provided on the lower surface of the insole main body 20, a continuous groove 22.22... Which is connected to the recess 21 and opens on the outer surface of the stepping portion is provided. . . .
In the portion corresponding to the ball joint part of the foot, the insole is promoted to bend, and also functions as a ventilation groove for the air compressed in the recess 21 by compressing the recess 21 due to the weight load during walking and running. The impact relaxation, flexibility, and air permeability at the time of wearing are simultaneously promoted, which is convenient.

[0013]

Since the present invention is configured as described above, when walking and running with shoes with the insole according to the present invention, first, in the walking and running process, the outer side of the heel portion 1 first lands. In this case, the outer heel portion of the insole body 20 has a semi-rigid or hard heel outer outer wall 11.
Since the rebound resilience is constrained at 2 and the bottom outer side 103 adjacent thereto, the heel is prone without excessive rebound and the weight load is moved to the center of the heel. At this time,
The maximum weight load is applied to the central part of the heel, that is, directly below the calcaneus. This is reduced by the thick portion of the soft cushioning foam filled in the punched portion 12 of the stabilizer 1 and the stabilizer 1 Excessive pronation of the heel of the foot is prevented by the bottom inner side 103 and the outer side wall 113 adjacent to the inside of the heel. Therefore, the landing stability of the heel at the beginning of the walking traveling process is maintained. Further, the weight load is moved to the step portion, but the punching portions 1111.1111... Are formed on the side wall 111 erected on the inner arch side of the stabilizer 1. . . Are provided, and the outer arch is also provided with the punched portion 13, so that the stabilizer 1 conforms to the arch shape of the individual wearer and supports the arch portion of the foot, and furthermore, the punched portion 1111.1111. . . And punching part 1
3 is filled and exposed with the insole body 20 made of a soft foam, so that the cushioning property is good, and the arch part of the foot is supported without a sense of incongruity due to the outer wall 111 on the inner arch side of the stabilizer. In addition, a crescent-shaped or semi-moon-shaped punched portion 13 is provided in the outer arch portion, and the insole body 20 is exposed and filled in the punched portion 13, so that the outer step is partially compressed more at its central portion 131. As a result, the weight load is moved while being appropriately turned in the direction of the ball joint of the fifth finger. And the weight load of the sole that reaches the ball joint part back surface of the fifth finger is compressed by the depression 21 provided in the stepping part of the insole body corresponding to the ball joint part of the first finger to the second finger, The ball is moved from the ball joint of the fifth finger to the ball joint of the second finger while rolling from the ball joint of the fifth finger while relaxing the impact at the stepping portion, and the ground is firmly trampled. Then, pitching with the first finger is promoted. Kick with two or three fingers can be performed smoothly, and tilt walking and running is promoted. Therefore, it is possible to provide a shoe insole excellent in walking running stability, impact relaxation, and fitting properties, and it is possible to obstruct the wearer's foot and leg, and furthermore, to obstruct the ball joint portion of the first to second fingers in the elderly walking. Can be prevented beforehand.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 to 7 of the drawings, a cup-shaped outer wall 11 is provided upright in the shape of a cup around the inner foot of a heel portion, and a circular punching portion 12 is provided at the center of the heel portion. Is formed, and a mountain-shaped punched portion 111 is formed on the outer wall 111 on the inner arch side.
1.1111. . . In the outer arch, a semi-rigid stabilizer 1 made of semi-rigid ABS resin having a crescent-shaped punched portion 13 and having an average thickness of 1 mm, and an average thickness of 1
Attach a cloth to the upper surface of the EVA resin foam insole body 20 with a thickness of 0 mm, an average thickness of 8 mm at the step portion and an average thickness of 6 mm from the tread portion to the toe via a rubber latex foam of 2 mm thickness. With a heating mold,
The insole body 20 is softened and compressed to a half thickness by so-called compression molding, has a C hardness of 40, and has a punched portion 1111.
1111. . . , 12, and 13, the insole body 20 is exposed and filled, and an oval-shaped thickness is formed on the lower surface of the insole body corresponding to the ball joint of the first finger to the second finger.
A 1.5 mm recess 21 and a hole 221.22 communicating with the outside of the stepping portion from the recess 21 and opening on the upper surface of the insole.
1. . . 22.22. Was shaped. The shoe insole according to the present invention thus formed exhibited the desired effects of the present invention.

[Brief description of the drawings]

FIG. 1 is a perspective view seen from an upper surface side.

FIG. 2 is a perspective view seen from a lower surface side.

FIG. 3 is a sectional view taken along line AA of FIG.

FIG. 4 is a sectional view taken along line BB of FIG. 1;

FIG. 5 is a sectional view taken along line CC of FIG. 1;

FIG. 6 is a sectional view taken along line DD of FIG. 1;

FIG. 7 is a sectional view taken along line EE in FIG. 1;

[Explanation of symbols]

1. Stabilizer, 10. . . Bottom, 102. . . .
Outer side, 103. . . . Inside edge, 11. . . Outer wall, 1
11. . . 112. outer wall on inner arch side; . . Outside wall on outer side of heel, 113. . . Outer wall inside heel 1111.
Punched part, 12. Punched portion, 13. Punching part, 1
31. . . Center, 14. . . 1. reinforcing ribs, Insole,
20. Insole body, 201. . . Overlay, 202. . .
Flexible layer, 21. Recess, 22. Continuous groove, 221. Vent

Claims (1)

[Claims] 1. An insole body 20 made of a soft cushioning foam is covered with an outer wall 11 erected on the outer periphery, and a step portion from the heel portion of the insole body 20 is provided. An insole with a half-lay stabilizer 1 attached to the lower surface, and a punched part 1 at the center of the heel of the stabilizer 1
2 has a plurality of tapered punched parts 1111.1111. . . However, a punched portion 13 having a shape of three months or half a month is formed in the outer arch portion, and these punched portions are exposed and filled with the cushioning insole main body 20. Further, the ball joint portion from the first finger to the second finger of the foot is formed. A shoe insole, wherein a depression 21 is provided in a corresponding stepping portion of the insole body 20.