JP4400990B2 - Insoles - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a shoe insole.
[0002]
[Prior art]
Conventionally, the half-stabilized stabilizer 1 with the outer wall standing upside down from the buttock is not stepped from the buttock of the insole body according to Japanese Examined Patent Publication No.59-29242, Jokokusho 61-22484, etc. One that has been worn over the bottom has been proposed. This type of insole has good cushioning and stability of the buttocks when worn and is used as an insole for athletic shoes.
[0003]
In normal adult walking, the inner and outer longitudinal arches along the long axis direction of the foot, that is, the inner arch from the rib to the head of the first metatarsal and the fifth from the rib. The outer longitudinal arch to the metatarsal head, the two transverse arches in the lateral direction of the foot, the first transverse arch from the first wedge bone to the tip of the cubic bone, and the first metatarsal The second lateral arch composed of a ball portion extending from the head of the first metatarsal to the head of the fifth metatarsal bone is used for walking while absorbing the landing impact pressure due to weight load. In the walking and running process, the weight load is first applied to the back surface of the buttocks while rotating from the outside of the buttocks to the inside, and then gradually forward along the back of the buttocks in the longitudinal direction of the foot from the back of the buttocks. The ball of the first finger after it is moved while turning around, and the foot of the fifth finger is turned back on the back of the ball, that is, the back of the joint of the fifth metatarsal bone and the fifth proximal phalanx. It is moved by stepping on the ground while rolling to the back of the joint, that is, the back of the joint of the first metatarsal bone and the first proximal phalanx, and then the first proximal phalanx and the first distal phalanx are bent and pitched. On the other hand, while walking on the ground with the back surface of the first distal phalanx (1st finger) strongly and kicking the ground with the 1st to 5th fingers, especially 1.2.3 fingers, it is a so-called “walking”. It is said to “walk and walk”. In such tilted walking, it is said that a dynamic maximum impact pressure is applied immediately below the ribs at the center of the buttocks and on the ball joint portion from the first finger to the second finger.
[0004]
In recent years, from the viewpoint of weight reduction and cushioning of shoes, cushioned elastic foams such as rubber and EVA have been used as shoe soles such as outer and intermediate soles. When walking and running while wearing shoes with these elastic foam bottoms, a dynamic load equivalent to a weight of 1.2 to 3.0 times is imposed on the outside of the buttocks at the initial stage of landing. Combined with the cushioning properties of the foot, the outside of the heel is rapidly compressed, and then the rapid elastic recovery force causes the heel of the foot in the shoe to over-pronounce, that is, overpronate, causing damage to the knee joint It is pointed out.
[0005]
On the other hand, it is said that Japanese have more hallux valgus, so-called O-legs, than Westerners. It has also been pointed out that in the case of the O-leg, the foot stepping portion is excessively swung out, that is, overspun when the ball joint portion of the fifth finger is landed, resulting in a disorder of the knee joint. In addition, when walking on an elderly person whose gait function has deteriorated due to deterioration of the leg muscles and ligaments due to aging, the weight load is intensively applied to the ball joint part of the second finger from the first finger. Other obstacles have also been pointed out.
[0006]
From the above viewpoint, in the conventional insole, it has not been possible to sufficiently prevent overpronation of the buttocks and overspinning of the stepping portion in the walking and running process. On the other hand, in the elderly walking, the impact relaxation at the ball joint part from the first finger to the second finger was insufficient.
[0007]
[Problems to be solved by the invention]
This invention prevents the overpronation of the buttocks of the foot and the overspinning of the stepping part during walking with a shoe insole, promotes walking while walking, and improves walking stability, impact relaxation, and fit. It is intended to provide an excellent insole and prevent obstruction of the wearer's foot and leg, and also obstruction of the ball joint portion between the first and second fingers in elderly walking.
[0008]
[Means for Solving the Problems]
In the present invention, the side wall of the insole body 20 made of a soft cushioning foam is covered with an outer wall 11 erected on the outer periphery, and a stepped portion (from the buttocks of the insole body 20) Arch part) A half insole from the lower surface, that is, an insole fitted with an insole-shaped stabilizer 1 from the buttocks to the step part, and a punched part 12 is provided at the center part of the stabilizer 1 at the inner step part. A plurality of tapered punched portions 1111.1111. . . However, a punching portion 13 having a three-month or half-moon shape is formed on the outer arch portion, and a cushioning insole body 20 is exposed and filled in these punching portions, and the bow joint portion between the first finger and the second finger of the foot. The insole of the shoe is characterized in that a depression 21 is provided in the stepping portion of the insole body 20 corresponding to the above.
[0009]
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, etc. substantially along the shape of the instep part of the insole body. The outer wall 11 is erected integrally around the periphery, and a circle or an ellipse, an egg shape, a drop shape or the like is formed at the center of the heel portion, that is, the portion corresponding to the portion directly below the rib. The punched portion 12 having an appropriate shape is formed on the outer wall 111 of the inner arch portion, and a plurality of tapered cut portions 1111.1111. . . Is formed. The outer arch portion is formed with a three-month to half-moon shaped punching portion 13 from the tip portion to the heel tip portion, leaving 1/2 to ３ of the outer side of the longitudinal center axis of the insole. And if necessary, the reinforcing ribs 14.14. In the longitudinal direction adjacent to the outer wall 11 of the inner arch part. . . Can also be provided.
[0010]
In the present invention, the insole body 20 is a soft EVA foam having a hardness according to JRIS-0101 (a hardness according to a compression hardness test according to a standard of the Japan Rubber Association regarding a physical test method of expanded rubber), that is, a c-type hardness of 30-50. 1.2 Made of a cushioning material such as polybutadiene foam, polyurethane foam, latex foam, rubber foam, etc., and an upper surface 201 is provided with a flexible top 201 such as fabric or leather. If necessary, if the upper layer 201 is bonded through a foam 202 having excellent flexibility such as latex foam or chloroprene rubber foam, the feeling of foot contact during wearing can be further improved. .
[0011]
In the present invention, the stabilizer 1 covers the side surface of the insole body 20 with the outer wall 11, and the punched portions 12, 1111.1111. . . 13, the insole body 20 is filled and exposed, and the insole body 20 is laminated from the buttocks to the lower surface of the part. In the lamination, the insole body 20 is composed of an EVA foam, a heat-softening foam such as a 1.2 polybutadiene rubber foam, and the insole body 20 is placed on the stabilizer 1 in a mold and covered. If this is heat compression molded with a mold, so-called compression molding, the insole body 20 is softened and compressed, and each punched portion 12, 1111.1111. . . , 13 can be filled and molded, so it is convenient to carry out this method.
[0012]
In this invention, the recess 21 provided in the stepping portion of the insole body 20 is provided in a portion corresponding to the ball joint part of the insole body from the first finger to the second finger. The concave part provided in the upper surface of this may be sufficient, and the hollow-shaped concave part provided in the lower surface of the insole main body 20 as shown in FIG. In the case of the hollow recess 21 provided on the lower surface of the insole body 20, if a continuous groove 22. 22... That is continuous with the recess 21 and opens on the outer surface of the stepping portion is provided, the groove 22.22. . . . In the portion corresponding to the ball joint portion of the foot, it also functions as a ventilation groove for air compressed in the recess 21 by promoting the bending of the insole and compressing the recess 21 due to the weight load during walking and running. It is advantageous that the impact relaxation property, flexibility, and breathability at the time of wearing are simultaneously promoted.
[0013]
[Effects of the invention]
Since the present invention is configured as described above, when walking while wearing the shoes with the shoe insole of the present invention, when the outside first lands in the heel part 1 in the walking traveling process, The rebound resilience is constrained by the outer wall 112 of the semi-rigid to rigid stabilizer but the outer wall 112 of the semi-rigid or rigid stabilizer and the bottom outer side 103 adjacent thereto, so that the reed portion can be rotated without excessive repulsion. The weight load is moved to the center of the buttocks. At this time, the maximum weight load is applied to the central part of the buttock, that is, immediately below the rib, and this is eased by the thick part of the soft cushioning foam filled in the punched part 12 of the stabilizer 1. Excessive prolapse of the heel of the foot is prevented by the bottom inner side 103 of the stabilizer 1 and the outer wall 113 inside the heel adjacent thereto. Accordingly, the landing stability of the kite at the initial stage of the walking / running process is maintained. Further, the weight load is moved to the part without stepping on, but the punched part 1111.1111. . . Since the punching portion 13 is also provided on the outer arch, the stabilizer 1 adapts and supports the arch portion of the foot along the wearer's individual arch shape, and the punching portion 1111.1111. . . Since the insole body 20 made of a soft foam is filled and exposed in the punched portion 13, the cushioning property is good, and there is no sense of incongruity due to the outer wall 111 on the inner arch side of the stabilizer, and the arch portion of the foot is supported. In addition, the outer arch portion is provided with a crescent-shaped or half-moon shaped punched portion 13 and the insole body 20 is exposed and filled in the punched portion 13 so that the outer stepped portion is partially compressed at its central portion 131. Therefore, the weight load is moved while appropriately rotating in the direction of the ball joint of the fifth finger. The weight load of the sole that has reached the back surface of the ball joint portion of the fifth finger is compressed by the depression 21 provided in the stepping portion of the insole body corresponding to the ball joint portion of the second finger from the first finger, It is moved while rolling from the fifth finger ball joint part to the ball joint part of the second finger while mitigating the impact at the stepping part, and the ground is firmly stepped on. And the pitching with the first finger is promoted, especially the first finger. Kicking with two or three fingers can be performed smoothly, and the gait walking is promoted. Therefore, it is possible to provide a shoe insole with excellent walking stability, impact relaxation, and fitting properties, and wearer's foot and leg obstacles, as well as obstacles in the ball joint of the first and second fingers in elderly walking. Can be prevented in advance.
[0014]
【Example】
As shown in FIGS. 1 to 7 of the drawings, the outer wall 11 is erected in a cup shape around the inner part from the collar part, and a circular punching part 12 is formed in the central part of the collar part, A mountain-shaped punched portion 1111.1111. On the outer wall 111 on the inner arch side. . . The outer arch has a semi-rigid stabilizer 1 with an average thickness of 1 mm made of semi-rigid ABS resin with a crescent-shaped punched portion 13, an average thickness of 10 mm at the buttocks, and an average thickness of 8 mm at the arch. Then, the upper surface of the insole body 20 made of EVA resin foam with an average thickness of 6 mm from the stepping part to the toe part is compressed with a heating type with a 2 mm thick rubber latex foam. The insole body 20 is softened and compressed to 1/2 thickness by press molding, the C hardness is 40, and the punched portions 1111.1111. . . 12, 13, 12 and 13, the insole body 20 is exposed and filled, and an oval-shaped dent 21 having a thickness of 1.5 mm is formed on the bottom surface of the insole body corresponding to the ball joint part from the first finger to the second finger. A hole 221.221 that communicates with the outside of the stepping portion from the recess 21 and opens to the upper surface of the insole. . . Continuous groove 22.22. Was shaped. The insole of the shoe according to the present invention thus formed exhibited the desired effect of the present invention.
[Brief description of the drawings]
FIG. 1 is a sketch viewed from the top side.
FIG. 2 is a sketch as seen from the lower surface side.
FIG. 3 is a cross-sectional view taken along line AA in FIG.
4 is a cross-sectional view taken along line BB in FIG.
5 is a cross-sectional view taken along line CC of FIG.
6 is a cross-sectional view taken along line DD in FIG. 1. FIG.
7 is a cross-sectional view taken along line EE in FIG. 1. FIG.
[Explanation of symbols]
1. Stabilizer, 10 . . Bottom, 102. . . . Outer side, 103. . . . 10. inner side, . . Outer wall, 111. . . An outer wall on the inner arch side, 112. . . An outer wall on the outside of the buttock, 113. . . Outside wall inside the buttocks 1111. 11. stamped part, Punched portion, 13. Punching part, 131. . . Central part, 14. . . Reinforcing ribs, 2. Insole, 20. Insole body, 201. . . Upholstery, 202. . . Flexible layer, 21. Dent, 22. Continuous groove, 221. Vent

Claims (1)

  The side wall of the insole body (20) made of a soft cushioning foam is covered with an outer wall (11) erected on the outer periphery, and is not stepped on from the buttocks of the insole body (20). An insole with a half-layout stabilizer (1) attached to the lower surface of the part, and a punched part (12) is provided at the center of the collar of the stabilizer (1), and a plurality of parts are provided on the outer wall (111) on the inner arch part side. Taper-shaped punching parts (1111.1111...) Are formed in the outer arch part with a three-month or half-moon-shaped punching part (13), and a cushioning insole body (20) is exposed and filled in these punching parts. In addition, the insole of the shoe is characterized in that a depression (21) is provided in the stepping portion of the insole body (20) corresponding to the ball joint portion of the first finger to the second finger of the foot.

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