JP3944536B1 - Insoles - Google Patents

Abstract

The present invention provides a shoe insole that uses a plastic material having flexibility, repulsive force, and resilience, and can instantaneously absorb and mitigate impacts in all directions.
A material for a body part 10 of a shoe insole is made of a plastic material having flexibility, repulsive force and resilience, and the thickness of the body part 10 is set in a range of 1.5 mm to 3.0 mm. The part 10 was formed in a shape capable of arch control. A flange portion having a U-shaped edge portion made of a plastic material is formed integrally with the body portion 10 below the flange portion of the body portion 10, and the flange portion of the body portion 10 is formed from the side surface of the U-shaped edge portion of the flange portion. Grooves 22a and 22b that are continuous with the region connected to the lower surface were provided.
[Selection] Figure 3

Description

The present invention uses a plastic material having flexibility, repulsive force, and resilience, and a shoe insole that can relieve shock in all directions while stably supporting the arch of a foot when a load is applied. About.

Traditionally, shoe insoles have functions such as breathability, antibacterial, deodorant, shock absorption, comfortable fit, arch support, flex, rebound, among others, breathability, antibacterial, deodorant, shock absorption Such functions are emphasized.
Moreover, the following prior art is proposed about the shoe insole excellent in cushioning property, fitting property, and stability.

  Japanese Utility Model Laid-Open No. 7-39511 discloses a cup insole to be mounted inside a shoe, wherein the bottom surface of the cup insole body made of an elastic material has a shape that fits the bottom surface of the shoe, and the upper surface of the heel portion includes a flat portion, It has a concave curved surface with a continuously formed side wall from the inner arch to the outer side through the back of the heel, and an impact cushioning material (sponge) using a bouncing putty is formed on the upper surface of the side wall. ) Is installed, and a cup insole having a configuration in which it is covered and locked by any one of fabric, nonwoven fabric, and leather is disclosed (Patent Document 1).

  In Japanese Utility Model Publication No. 6-26511, a sponge plate having a large number of through holes is fixed on a substrate, a urethane foam plate is fixed on the sponge plate, and a large number of urethane foam plates are mounted on the urethane foam plate. An insole for footwear in which a surface cover having small holes is covered is disclosed (Patent Document 2).

  Japanese Patent Laid-Open No. 2005-205204 discloses that the sole of the foot is completely fitted to the insole of the shoe, and shocks applied to the sole of the foot during walking are buffered to prevent the supination and pronation of the ribs. For this purpose, the cup insole is composed of a main body member, a main body member support member, and a buttock-compatible member, and the cup insole is molded from high-density, low-rebound urethane, and high repulsion is applied to the portion corresponding to the ridge of the buttock-compatible member. Fitting parts made of urethane, and connecting from the bottom of the body member to the inner arch protection member, the outer arch protection member, and the second buttock protection member, respectively, and standing up integrally, corresponding to the second midfoot part Is formed into a raised structure from the left and right sides of the body member support member toward the center in the width direction and from both the heel direction and the stepping portion toward the center, and the second midfoot portion corresponding portion has a through hole in the vertical direction. Drilled in the body member Kappuinsoru for projecting at least one protrusion is inserted into the insertion holes has been disclosed (Patent Document 3).

  Japanese Patent Application Laid-Open No. 2005-204902 discloses an insole excellent in mobility and impact relaxation, and includes a base, and a finger ball portion and a heel portion, which are made of different materials. An insole in which the material of the sphere and the material of the collar are different from each other is disclosed (Patent Document 4).

  Japanese Patent Application Laid-Open No. 10-295409 discloses a cushioning material in which one or more layers are laminated and a double raschel bonded to the surface for the purpose of improving the breathability of the insole of the shoe and eliminating the stuffiness of the foot. In particular, the cushioning material is bonded to the surface of the layer of ethylene-vinyl acetate copolymer having a shape conforming to the irregularities of the sole, the foamable latex layer bonded to the surface thereof, and the surface. An insole comprising an open cell urethane foam layer is disclosed (Patent Document 5).

Japanese Utility Model Publication No. 7-39511 Japanese Utility Model Publication No. 6-26511 JP 2005-205204 A JP-A-2005-204902 Japanese Patent Laid-Open No. 10-295409

As a material for conventional shoe insoles, a sponge material having excellent cushioning properties is often used. However, since the sponge material is inferior in flexibility, repulsive force, and resilience compared to the plastic material, it has a problem that it does not match the movement of the foot and may suppress the movement.
Here, the merit of using a plastic material for the material of the insole is that it adheres to the foot, moves in coordination with the ligaments and muscles, works without restraining the movement of the foot, and can perform more natural exercise . However, if the plastic material is too thick, the ligaments and muscles of the foot are fixed too much and the movement is suppressed. On the other hand, if the plastic material is too thin, the strength of the plastic does not come out and the foot cannot be controlled.

Accordingly, the present invention has been made to solve such problems, and uses a plastic material having flexibility, repulsive force, and resilience, and stably stabilizes the foot arch when a load is applied. An object of the present invention is to provide a shoe insole that can instantaneously absorb and mitigate shocks in all directions while being supported .

In order to solve the above-mentioned problem, the invention according to claim 1 is a shoe insole used by being inserted into an inner bottom part of a shoe, wherein the material of the body part of the shoe insole is flexibility, repulsive force, and resilience. And the thickness of the main body portion is set in a range of 1.5 mm to 3.0 mm, the main body portion is formed in a shape capable of arch control, and the arch portion from the heel portion of the main body portion A flange part having a U-shaped edge made of the plastic material is formed integrally with the main body part in a lower region up to the vicinity, and the outer surface of the U-shaped edge part protrudes in the horizontal direction so that the lower surface of the flange part Is formed in a planar shape, and the U-shaped edge is connected to a region extending from the upper surface of the edge protruding in the horizontal direction to the lower surface inclined obliquely downward of the flange portion of the main body. Continue until Parts are to that adopted the circumferentially provided with the structures.

The invention according to claim 2 is characterized in that, in the invention according to claim 1, an impact absorbing material is embedded along the groove.

According to a third aspect of the present invention, there is provided a recess extending continuously from one end of the U-shaped edge to the other end on the flat bottom surface of the U-shaped edge according to the first or second aspect. And the depth of the recess is set in a range of 2.0 mm to 3.0 mm, and an impact absorbing material is mounted in the recess .

The invention described in claim 4 is characterized in that shock absorbing materials having different hardnesses are attached to the inside side and the outside side of the recess according to claim 3 .

As described above, according to the first aspect of the present invention, the material of the main body portion of the shoe insole is a plastic material having flexibility, repulsive force, and restoring property, and the thickness of the main body portion is 1.5 mm to To set the range of 3.0mm and shape the body part so that the arch can be controlled, so that the insole is in close contact with the foot, moves in coordination with the ligaments and muscles, and works without suppressing the movement of the foot , You can do more natural exercise. In addition, by projecting the outer side of the U-shaped edge in the horizontal direction and forming the bottom surface of the collar part into a flat shape, not only contributes to stability, but also this collar part is located near the arch part from the collar part of the main body part. The same plastic material as the main body is used to cover the entire lower area, and the U-shaped edge protrudes in the horizontal direction from the upper surface of the outer edge of the edge to incline in the diagonally downward direction of the flange portion of the main body. By providing a continuous groove part from one end of the U-shaped edge to the other end in the area connected to the bottom surface, the groove part can move in any direction (vertical) while stably supporting the foot arch by the body part when a load is applied. , Laterally, diagonally) can instantly absorb and mitigate shocks.

According to the second aspect of the invention, the impact absorbing material and the stability are improved by embedding the impact absorbing material along the groove.

According to the invention described in claim 3 , the continuous recess is provided on the lower surface of the flat collar portion of the U-shaped edge, and the depth of the recess is set in the range of 2.0 mm to 3.0 mm. By mounting the shock absorbing material in the recess, a sense of stability is enhanced, and constant walking is always possible by suppressing wobbling of the heel during walking. Furthermore, according to the invention described in claim 4 , by mounting shock absorbers having different hardnesses on the inside side and the outside side of the concave portion, there are effects on flat feet, O legs, knee pain, and the like. .
Here, the control of walking balance can be roughly divided into two types: control in the first half of walking (during landing) and control in the second half of walking (during kicking). The applicant of the present application has already invented and obtained a patent for “shoe insole” that contributes to control in the second half of walking (when kicking) (patent No. 3662014, registration date April 1, 2005). On the other hand, the shoe insole according to the present invention contributes to the control in the first half of walking (during landing) and affects the landing when the load is most likely to be applied to the large skeleton of the foot. Also has a great control effect on walking balance.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing an example of a shoe insole (for left foot) according to the present invention.

As shown in FIG. 1, a shoe insole according to the present invention has a heel part 20 having a U-shaped edge portion formed integrally with a main body part 10 in a lower region from the heel part of the main body part 10 to the vicinity of the arch part. Has been. A plastic material having flexibility, repulsive force, and resilience is used as the material of the main body 10 and the flange 20.

  FIG. 2 is a bottom view of the shoe insole shown in FIG. FIG. 3 is an AA enlarged cross-sectional view of the shoe insole shown in FIG. 4 is a cross-sectional view of the insole BB shown in FIG. FIG. 5 is a side view of the outside of the shoe insole shown in FIG. FIG. 6 is a side view of the inside side of the shoe insole shown in FIG.

As shown in FIGS. 3 to 6, in the shoe insole according to the present invention, the thickness of the main body 10 is set in a range of 1.5 mm to 3.0 mm. The surface corresponding to the sole of the main body 10 is formed in a shape that allows arch control (a shape that supports the foot arch from the inside edge 11a to the outside edge 11b and closely contacts the foot).
The collar part 20 has a U-shaped edge that protrudes from the outside (side surface 21) in the horizontal direction and has a collar part lower surface formed in a flat shape. Further, from one end of the U-shaped edge to a region connecting from the upper surface of the edge outer side (side surface 21) projecting in the horizontal direction of the U-shaped edge of the flange 20 to the lower surface inclined obliquely downward of the flange of the main body 10. A groove portion 22 continuous to the other end is provided. The groove portion 22 can instantaneously absorb and mitigate impacts in all directions (vertical, horizontal, and diagonal).
Further, an impact absorbing material (not shown) may be embedded in the groove portion 22 in order to improve the impact absorbability and stability.
A concave portion 23 that is continuous from one end to the other end of the U-shaped edge is provided on the bottom surface of the U-shaped edge of the flange 20 (planar lower surface of the flange). The depth of the recess 23 is set in a range of 2.0 mm to 3.0 mm.
In the recess 23, shock absorbing materials (symbols 30 and 31 shown in FIG. 7 and symbols 32 and 33 shown in FIG. 8) are mounted. This increases the sense of stability and suppresses wobbling of wrinkles when walking. Considering the position of the center of gravity of the sole during walking, it is considered that the most effective effect is to attach the shock absorbing material to the position shown in the figure.
The material of the impact absorbing material is not limited as long as it has an impact absorbing effect such as polyurethane, rubber, rubber, EVA sponge and the like.
Further, as shown in FIG. 7 and FIG. 8, on the inside side and outside side of the recess 23, shock absorbers (hard material 30, soft material 31, soft material 32 and different hardness) having different hardnesses are used to change the balance. A hard material 33) may be mounted.

(First Example)
A flange portion 20 having a U-shaped edge is formed integrally with the main body portion 10 at the flange portion of the main body portion 10. A plastic material having flexibility, repulsive force, and resilience is used as the material of the main body 10 and the flange 20. The thickness of the main body 10 is set in the range of 1.5 mm to 3.0 mm. The surface corresponding to the sole of the main body 10 is formed in a shape that allows arch control.
A groove portion 22 that is continuous from one end to the other end of the U-shaped edge portion is provided in a region connecting from the side surface 21 of the U-shaped edge portion of the flange portion 20 to the lower surface of the flange portion of the main body portion 10. The groove portion 22 can instantaneously absorb and mitigate impacts in all directions (vertical, horizontal, and diagonal).

(Second embodiment)
Similar to the first embodiment, a continuous groove portion 22 is provided around, and an impact absorbing material (not shown) is embedded in the groove portion 22. The groove 22 and the shock absorber improve the shock absorption and stability.

(Third embodiment)
On the bottom surface of the U-shaped edge portion of the heel portion 20 of the shoe insole described in the first embodiment or the second embodiment, a concave portion 23 that is continuous from one end to the other end of the U-shaped edge portion is provided. The depth of the recess 23 is set in a range of 2.0 mm to 3.0 mm. An impact absorbing material (symbols 30 and 31 shown in FIG. 7) is mounted in the recess 23.
A shock absorbing material (symbol 30 shown in FIG. 7) made of a hard material is attached to the recess 23 on the inside side (symbol 23a shown in FIG. 3). On the other hand, an impact absorbing material (symbol 31 shown in FIG. 7) made of a soft material is attached to the recess 23 on the outside side (symbol 23b shown in FIG. 3). In this case, since the arch support on the inside side is strengthened and the knee is prevented from being added to the inside, it is effective for flat feet and knee pain.
Here, the soft material refers to a material that is very excellent in shock absorption and feels the sinking of the foot. The hard material refers to a material that has a repulsive force that does not put a burden on the foot and has a feeling of supporting the foot from below. As for the hardness of the soft material and the hard material, the hardness of the soft material is suitably 55 to 75 degrees on the scale of ASTM D2240 based on the ASTM (American Society For Testing and Materials). Yes. On the other hand, it is suitable that the hardness of the hard material is 60 to 80 degrees on the same scale. Therefore, the hardness difference between the soft material and the hard material is preferably at least 5 degrees or more on the same scale. A specific measuring instrument used for the scale is Pacific Transducer Corp. of the United States. Durometers / PTC (registered trademark) 400SERIES / Model411 / Type00.

(Fourth embodiment)
On the bottom surface of the U-shaped edge portion of the heel portion 20 of the shoe insole described in the first embodiment or the second embodiment, a concave portion 23 that is continuous from one end to the other end of the U-shaped edge portion is provided. The depth of the recess 23 is set in a range of 2.0 mm to 3.0 mm. An impact absorbing material (symbols 32 and 33 shown in FIG. 8) is mounted in the recess 23.
A shock absorbing material (symbol 33 shown in FIG. 8) made of a hard material is attached to the recess 23 on the outside side (symbol 23b shown in FIG. 3). On the other hand, an impact absorbing material (symbol 32 shown in FIG. 8) made of a soft material is attached to the recess 23 on the inside side (symbol 23a shown in FIG. 3). In this case, the outside arch support is strengthened and the knee is prevented from abduction to the outside, so that it is effective for O-legs and knee pain.
As for the hardness of the soft material and the hard material, those within the respective hardness ranges can be selected as in the third embodiment, but the hardness difference between the soft material and the hard material is at least 5 degrees or more on the same scale. It is preferable.

It is a perspective view which shows an example of the shoe insole (for left legs) concerning this invention. It is a bottom view of the shoe insole shown in FIG. It is an AA expanded sectional view of the shoe insole shown in FIG. It is BB sectional drawing of the shoe insole shown in FIG. It is a side view of the outside side of the shoe insole shown in FIG. It is a side view of the inside side of the shoe insole shown in FIG. It is a perspective view which shows the state which mounted | wore the hard material and the soft material to the recessed part of the outside side of the inside recessed part of the shoe insole shown in FIG. It is a perspective view which shows the state which mounted | wore the soft material and the hard material to the recessed part of the outside side of the inside recess of the shoe insole shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Main body part 11 Edge part 20 Gutter part 21 Side surface 22 Groove part 23 Recessed part 30,33 Hard material 31,32 Soft material

Claims (4)

In a shoe insole that is inserted into the inner bottom of a shoe and used, the material of the body part of the shoe insole is a plastic material having flexibility, resilience, and resilience, and the thickness of the body part is 1. A U-shaped edge made of the plastic material in the lower region from the collar part of the main body part to the vicinity of the arch part while the main body part is formed in a shape capable of arch control and is set in a range of 5 mm to 3.0 mm The flange portion is formed integrally with the main body portion, and the outer side of the U-shaped edge portion protrudes in the horizontal direction to form the lower surface of the flange portion in a flat shape and protrudes in the horizontal direction of the U-shaped edge portion. A shoe insole characterized in that a groove portion continuous from one end to the other end of the U-shaped edge portion is provided in a region connected from the outer upper surface of the edge portion to a lower surface inclined obliquely downward of the heel portion of the main body portion . A shoe insole, wherein a shock absorber is embedded along the groove portion according to claim 1 . A concave portion continuous from one end to the other end of the U-shaped edge portion is provided on the lower surface of the flat flange portion of the U-shaped edge portion according to claim 1 or 2, and the depth of the concave portion is set to 2. A shoe insole that is set in a range of 0 mm to 3.0 mm and is provided with an impact absorbing material in the recess. A shoe insole, wherein shock absorbing materials having different hardnesses are attached to the inside side and the outside side of the recess according to claim 3 .

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