JP2002238609A - Shoe sole and protective stabilizer used for shoe sole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shoe sole and its protective stabilizer having stability, shock absorbing characteristics, impact resilience, and lightweight properties at the time of walking, wherein a front foot part is easily bent, and slipping can be prevented to a certain degree for safety so as to achieve motion following characteristics, and comfortableness to wear. SOLUTION: This shoe sole 1 is formed by laminating outsole bodies 2A and 2B, and a midsole body 5. The protective stabilizer 10 comprises an arch protector part 11 abutting against a part of an arch of the foot of the midsole body 5, a ground protector part 12 abutting against the bottom of the heel part, and heel side protector parts 13 abutting against the right and left sides of the heel, and is interposed an attached to the heel part of the midsole body 5 between the outsole body 2B. The arch protector part 11 is curved upward in a protruding manner in a side view, wherein side parts 11A for abutting against the right and left sides of the bottom of the arch of the foot are formed in a protruding manner so as to mutually face on the right and left. The heel side protector parts 13 are provided in a standing manner so as to mutually face on the right and left of the ground protector part 12, wherein openings 14 are formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sole for sports shoes, particularly golf shoes, and a protective stabilizer for the sole, which has stability during walking, shock absorption, rebound resilience, light weight, and a forefoot. The soles of shoes that can be worn comfortably because they are easy to bend and have a certain degree of slipperiness in terms of safety and are also excellent in following the movement. It is about stabilizers.

[0002]

2. Description of the Related Art When performing various sports, special athletic shoes corresponding to the respective modes of the sports are worn. For sports shoes for that purpose, stability according to each sport (promoting stable walking with little wobble), shock absorption (effectively absorbing the impact during walking, especially the heel is required Rebound resilience (converts the absorbed load into a reaction force and returns it in the opposite direction to the load, also called shock absorption and cushioning), Flexibility (bending without resistance at the forefoot bending position) There is a demand for lightness (light weight), difficulty in sliding (hardness in terms of safety, but some degree of sliding is required depending on the application).

That is, in shoes, especially sports shoes, it is considered that cushioning of the heel is an essential requirement. Even if this cushioning can be experienced by achieving both impact absorption and rebound, these two effects can be realized. Are contradictory. That is, when the shock absorption increases, the resilience decreases, and in the conventional materials / techniques, the level is inevitably low to satisfy both requirements. However, at the present time, the level of compatibility has been improved due to advances in material technology, and examples thereof include a gas-filled (air) structure and the use of a highly elastic sponge material.

[0004] Further, in sports exercise, the point is that the forefoot bends easily. For this reason, conventionally, in order to easily bend the forefoot, a design such as forming a groove along the bending line in the sole of the shoe is used. Although some approaches were used in terms of surface, it is necessary to use soft sole materials structurally.
This is because cushioning is also necessary because the bent part corresponds to the stepping part in walking, and in a normal shoe sole, from the toe to the heel part, it is used as one sole with the same material If the sole of the shoe is softened to increase flexibility, the heel is naturally softened and the stability is impaired.

Referring to FIG. 6A, an outsole 1 made of rubber or the like in contact with a walking surface in a shoe sole.
01 and a midsole 102 made of a foamed urethane resin or sponge with a shock absorbing / rebounding material 103 therein, the load L during walking is due to the soft ground which is the walking surface, for example, the grass ground. Shock absorbing / rebound material 10
Even if it is applied to 3, it will not be converted to a sufficient repulsive energy (R) and will pass through the ground.

[0006] From such a viewpoint, it is extremely difficult to balance the stability, shock absorption, rebound resilience, flexibility, lightness, slipperiness and the like required of shoes in a well-balanced manner. . Further, for example, in golf shoes, the average walking distance in one round is 7 to 10 km.
Therefore, it is required to reduce fatigue caused by long-distance walking, to increase rigidity to increase stability on the ground at the time of swinging, to hold the player and shoes together with a sense of unity, and the like.

Various proposals have hitherto been made to meet such demands. For example, as disclosed in Japanese Utility Model Laid-Open Publication No. Hei 7-34703, a partly or entirely formed midsole is formed between a midsole and a shank part. There is an athletic shoe sole in which a color chip is sandwiched and formed through an adhesive. Further, as disclosed in Japanese Utility Model Registration No. 3018223, there is a golf shoe in which a spring plate made of a high-rigidity material is provided on the arch and a pair of reinforcing pieces is provided on both side edges of the spring plate. As disclosed in Japanese Utility Model Laid-Open Publication No. 6-41503, a midsole is laminated in a cross-linked manner on the upper surface of the front outsole and the back outsole, and elastic plates are provided on both sides of the upper surface and the lower surface of the arch portion of the midsole. There is a fitted shoe sole material. Further, JP-A-2000-837
As disclosed in Japanese Patent Publication No. 05-2005, there is a shoe sole structure in which a corrugated plate is sandwiched in a two-layer structure midsole.

[0008]

However, in the prior art described above, in Japanese Utility Model Laid-Open Publication No. Hei 7-34703, the weight of the entire shoe sole becomes heavy, and when the shoe is worn for a long time, a feeling of fatigue is felt. It becomes larger, utility model registration No. 3018223
According to the publication, the spring plate is arranged forward from the arch, so that, for example, stability during a golf swing can be maintained.However, since there is no shank member from the arch to the heel, a twist is generated between them. There is a disadvantage that the arch part is depressed. 6-41503
In the publication, there is no shank member from the arch part to the heel part.
As in Japanese Patent No. 23, twisting occurs between the arch and the heel, or the arch is lowered, and the cushioning property and stability of the heel are insufficient. Further, even in Japanese Patent Application Laid-Open No. 2000-83705, even if cushioning property of the heel portion is obtained, it is insufficiently prevented from inclining to the outside where the load is most applied when walking, and lacks stability.

Accordingly, the present invention has been made in view of the above-mentioned circumstances that have existed in the past, and has been wrapped firmly by a molding structure that integrates from the arch to the heel and further to the side of the heel. To ensure stability, and also prevent excessive twisting of the shoe around the arch part, the fall of the arch part causing fatigue caused by walking for a long time,
In addition, it disperses the load applied to the arch part during walking to help reduce fatigue, and not only prevents the heel part, which is the most loaded part during walking, from leaning in and out, but also the heel part bottom surface due to walking or left and right movement. Stability is improved by preventing deformation. For example, golf shoes not only increase the stability at the time of swing, but also enhance the effects of impact absorption and rebound resilience, and maintain the stability of the heel while maintaining the forefoot. A shoe sole and shoes that enable the flexibility of the part itself, easy bending, etc. to be obtained, and also reduce vibration transmitted to the foot by attenuating vibrations from the walking surface, thereby reducing fatigue. It is intended to provide a protective stabilizer used on the bottom.

[0010]

In order to achieve the above-mentioned object, the present invention provides a shoe sole 1 comprising an outsole body 2A, 2B and a midsole body 5 which are laminated. The heel portion has an arch protector portion 11 that contacts the arch portion of the midsole body 5 between the outsole body 2B, a ground protector portion 12 that contacts the bottom surface of the heel portion, and the left and right sides of the heel portion. The protective stabilizer 10 having the heel side protector portion 13 in contact therewith is interposed and mounted. The protective stabilizer 10 used for the sole 1 is interposed and mounted on the heel portion between the outsole bodies 2A and 2B and the midsole body 5 which constitute the laminated sole 1, and the arch part of the midsole body 5 is provided. , A ground protector portion 12 that contacts the bottom surface of the heel portion, and a heel side protector portion 13 that also contacts the left and right side surfaces of the heel portion. The arch protector portion 11 can be formed by projecting upwardly when viewed from the side, and projecting so that the side portions 11A abutting on the left and right side surfaces of the bottom of the arch portion are left and right facing each other. The heel side protector section 13 is the ground protector section 12
Of the heel portion, the height gradually decreases from the rear edge to the front edge, and the upper edge line is the side portion 11A of the arch protector portion 11.
Can be formed smoothly and continuously with the upper edge line, and can be formed by forming an opening 14 with an appropriate size, shape, and the like. Correspondingly, the inside and outside height, shape, and the like of each of the right and left sides can be changed. The heel side protector portion 13 can be mounted in the concave portions 7 formed on the left and right side surfaces of the heel portion of the midsole body 5. Can be integrated. A heel cushioning member 9 made of a soft material is fitted and fixed to the heel portion of the midsole body 5, and the protective stabilizer 10 can be formed of a hard material.

In the sole 1 and the protective stabilizer 10 used for the sole 1 according to the present invention, the protective stabilizer 10 extends from the arch to the heel and the left and right sides. Enclosed integrally to improve stability of the heel and increase overall rigidity. Arch protector part 11
Prevents excessive twisting of the entire shoe centering on the arch part, increases the stability, enhances the stability, disperses the load applied to the arch part during walking without lowering the arch part.
Also, the upwardly projecting curve provides cushioning from the arch to the heel, while increasing the flexibility for the forefoot and the stability for the heel. The ground protector section 12 prevents deformation of the heel bottom surface due to walking or right and left movements, and attenuates vibrations during walking to help reduce fatigue. The heel side protector section 13 serves as a heel section to which a load is applied during walking. To prevent the inward tilt of the outside. In the heel portion of the sole 1, when walking, the load on the heel cushioning member 9 made of a soft material is received by the protective stabilizer 10 made of a hard material, and the load coming off the walking surface is reduced. The load is effectively converted into a repulsive force.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. Outsole bodies 2A and 2B which are suitable soles and are in contact with the ground, a midsole body 5 to which an upper portion is attached, and interposed at a heel portion between the outsole bodies 2A and 2B and the midsole body 3 It is configured as a laminated structure by the protective stabilizer 10 and the like.

Outsole body 2A, 2B as shown
The forefoot part and the heel part are divided and configured as a synthetic rubber material, for example, so that the outsole body 2A of the forefoot part has a shape, size, etc. sufficient to cover the bottom surface of the forefoot part. The outsole body 2B of the heel portion is formed in a shape, size, etc. sufficient to cover the bottom surface of the heel portion. A rising portion is formed.
The outsole members 2A and 2B are provided with a convex mounting portion 3 which is fixed to the outsole members 2A and 2B by screws or the like so as to be suitable for golf shoes.

The midsole body 5 is made of a foaming resin having a high foaming rate by integrating the forefoot portion, the arch portion, the heel portion, etc., for example, EVA (a copolymer of ethylene and vinyl acetate).
It is preferably formed of a sponge foam, and a rising portion 6 for joining and integrating with the upper portion 20 is formed so as to be frame-shaped on the entire periphery thereof. On the outer side surface, a concave portion 7 having a depth substantially corresponding to the wall thickness is formed so that the left and right heel side protector portions 13 of the protection stabilizer 10 can be mounted, for example, fitted. The fixing of the protective stabilizer 10 to the heel portion of the midsole body 5
Not only in the case of the fitting type into the concave portion 7, but also when the midsole body 5 is thermoformed, it is possible to perform heat fusion. The forefoot portion and the heel portion of the midsole body 5 are each a forefoot cushioning member 8 made of a soft material for a forefoot portion having a substantially mountain-shaped outer shape in plan view for relaxing impact and the like during walking, and a substantially circular shape. The heel cushioning members 9 made of a soft material for the heel portion having a shape are fitted and fixed.

Further, as shown in FIG.
The midsole body 5 is abutted against the bottom surface of the arch portion, the bottom surface of the heel portion, and the left and right side surfaces of the heel portion to wrap and cover the arch portion, the bottom of the heel portion, and the left and right side portions, respectively. 5 between the heel portion and the outsole body 2B. That is, the protective stabilizer 10 is made of a hard material such as a thermoplastic urethane resin or another hard synthetic resin material,
The arch protector 11 is formed of a hard rubber material, a metal material, or the like. The arch protector 11 contacts the bottom of the arch of the midsole body 5, the ground protector 12 contacts the bottom of the heel, and the left and right sides of the heel. The contacting heel side protector 13 is integrally formed, and the arch protector 11 is also in contact with and supports the left and right side surfaces of the arch.

The arch protector portion 11 is in contact with the bottom of the arch portion between the forefoot portion and the heel portion of the midsole body 5, and is curved upwardly as viewed from the side and has an arch shape. The side portions 11A that contact the left and right side surfaces of the bottom of the portion are formed so as to protrude so as to face left and right, so that they have a substantially groove shape in a cross section along the left and right direction. Further, the front edge of the arch protector portion 11 is cut out so as to be hollowed out in an arc shape with an appropriate curvature, for example, to reduce the weight.

In consideration of the fact that the part where the shoe itself is bent is closer to the toe as shown in FIG. 6, the arch protector part 11 may have a tongue-like forefoot side projecting from the front edge. An extension 15 may be provided.

The ground protector portion 12 is continuous with the arch protector portion 11 integrally, and is disposed in contact with the bottom surface of the heel portion of the midsole body 5.

The heel side protector 13 is
The right and left ground protector portions 12 are erected so as to face each other, and correct and correct the flexibility of the material for rebound resilience of the heel portion of the midsole body 5 so as to provide a certain degree of rigidity. . The heel side protector portion 13 shown in the drawing has a height gradually lowering from the rear edge to the front edge of the heel portion, and the upper edge line is the same as the side portion 11A of the arch protector portion 11 described above. While smoothly continuing to the upper edge line,
The opening 14 is formed in an appropriate size, shape, and the like to reduce the weight. When the heel side protector portion 13 is actually used and mounted, the heel side protector portion 13 is formed to have a rib structure so as to obtain sufficient rigidity while being thinner as shown in FIG. Good. When adopting this rib structure, etc., it is necessary to take into account the decorativeness and design. For example, the line-shaped shallow groove portion is made oblique to the front and rear of the shoe, up and down, and obliquely, and the outer surface of the heel side protector portion 13 and further the arch protector portion. 11 may be formed on the outer surface or the like of the side portion 11A.

The heel side protector 13 has a height, a shape, a size inside and outside the left and right sides corresponding to various kinds of competition contents performed by wearing a golf competition or other shoes.
It is possible to appropriately change the thickness and the like.

The heel side protector 13
The outer surface of the heel side protector portion 13 is set to the outer surface of the midsole body 5 after the fitting, when it is assumed that the outer surface of the midsole body 5 is fitted into the recesses 7 formed on the left and right side surfaces of the heel portion of the midsole body 5. The heel side protector portion 13 is designed so that it does not travel significantly outside the midsole body 5.

Next, a shoe sole incorporating the protective stabilizer 10 will be described. As shown in FIGS. 1 to 3, a forefoot cushioning member 8 is mounted on the forefoot and a heel cushioning member 9 is mounted on the heel. A midsole body 5 is prepared. The protective stabilizer 10 is provided on the heel portion of the midsole body 5, and the ground protector portion 1 of the protective stabilizer 10 is provided on the bottom surface of the heel portion.
2 is fixed so that the heel side protector portion 13 is joined to the left and right side surfaces in accordance with the concave portions 7, respectively, and then the heel side outsole body 2B is stuck to the protective stabilizer 10 and fixed, and the forefoot side is fixed. Attach and fix sole body 2A to the forefoot portion of midsole body 5 (see FIG. 2)
Thus, the shoe sole 1 is obtained. Then, the sole 1 and an appropriate upper portion 20 are fixed to each other to form a predetermined shoe, for example, a sports shoe, particularly a golf shoe (FIG. 3).
reference). In addition, for example, an adhesive or the like is used for joining and integrating the members, and in some cases, the outsole body 2B and the protective stabilizer 10 may be attached and integrated in advance.

[0023]

Since the present invention is constructed as described above, it wraps firmly from the arch to the heel and further to the side of the heel, and excessively twisting and shaking the front and back of the shoe centering on the arch. To prevent the fall of the heel, and disperse the load applied to the arch to help reduce fatigue.In addition, increase the stability by preventing the loaded heel from leaning in and out and preventing the heel bottom from deforming. Can be. In addition, for example, the stability at the time of a swing in the case of a golf shoe is increased, the impact absorption and the rebound resilience are balanced to enhance their effects, and while maintaining the stability of the heel, the forefoot itself is improved. Flexibility, easy bendability, etc. are obtained, vibrations and the like from the walking surface are attenuated to help reduce fatigue, and long-term walking and playing are facilitated.

That is, in the present invention, the protective stabilizer 10 is interposed and mounted on the heel portion of the outsole bodies 2A and 2B and the midsole body 5 constituting the sole 1 of the laminated structure.
The protective stabilizer 10 includes an arch protector portion 11 that abuts on the arch portion of the midsole body 5, a ground protector portion 12 that abuts on the bottom surface of the heel portion, and a heel side protector portion 13 that also abuts the left and right side surfaces of the heel portion.
Because of the provision of
The stability, impact absorption, rebound resilience, flexibility, lightness, slip resistance, and the like required for shoes, mainly sports shoes such as golf shoes, can be balanced.

The arch protector portion 11 of the protective stabilizer 10 is curved upward and protruding when viewed from the side, so that the arch portion is not lowered and the load applied to the arch portion during walking is dispersed. While providing cushioning from the arch to the heel, the forefoot is more flexible and the heel is more stable. Not only that, but also because the side portions 11A that are in contact with the bottoms on the left and right side surfaces of the arch portion are formed so as to be opposed to each other in the left and right directions, excessive amounts of front and rear of the entire shoe centering on the arch portion are obtained. In addition, the torsion is prevented, and the stability of the heel portion is improved together with the ground protector portion 12 which is continuous with the arch protector portion 11.

In addition, in the present invention, the protective stabilizer 10 is laminated and attached to the heel portion of the midsole body 5 and bonded, so that the stability of the heel portion can be maintained, and the heel portion from the arch portion has cushioning properties. However, the stability is high, and the forefoot part can be structured to be soft and easy to bend. Also, since softening the sole 1 (mainly the mid layer called the midsole body 5) itself is related to the weight,
The midsole body 5 itself is made of a sponge or a urethane foam resin and has air bubbles therein to improve the flexibility / cushioning property, and the fact that it can be made softer in this way increases the foaming rate. Therefore, it greatly contributes to weight reduction of the sole 1 as a whole.

The ground protector portion 12 is in contact with the bottom surface of the heel portion, and the heel side protector portion 1
3 is erected on the left and right sides of the ground protector portion 12 so as to face each other, and is in contact with the left and right side surfaces of the heel portion.
Vibration during walking can be attenuated by preventing the heel portion, which is loaded during walking, from leaning in and out, and preventing deformation of the bottom surface of the heel portion due to walking or right and left movements. For example, walking, playing for a long time, etc. Even if it becomes, it will reduce fatigue.

In addition, when walking on the heel portion of the sole 1 during walking, the load on the heel cushioning member 9 made of a soft material fixed to the heel portion of the midsole body 5 is secured by the protective stabilizer 10 made of a hard material. As shown in FIG. 6 (B), even if the walking surface during walking is a soft one such as grass, the load L that passes through the walking surface is reduced, and the heel cushioning member 9 is received. That load is effectively converted into repulsive energy (R). That is, the effect of the shock absorbing / repulsive material during walking is further enhanced under the condition that the walking surface is hard. As the walking surface becomes softer, the effect of absorbing the shock is increased and the repulsion effect is reduced. Conventionally, when walking on soft ground such as turf in a game, the resilience has been greatly impaired in the past. However, in the present invention, a moderate repulsion can be obtained even on a soft walking surface, so that walking can be made comfortable and fatigue during long-distance walking can be greatly reduced.

Further, since the ground protector portion 12 of the protective stabilizer 10 has a vibration damping effect at the time of walking, accumulation of vibration which is one of the causes of fatigue can be prevented. That is, conventionally, the sole 1
In the present invention, the vibration, which is one of the reaction forces of the load during walking, is attenuated by the ground protector portion 12 made of a hard material to reduce the vibration transmitted to the foot. This is because it helps reduce fatigue.

The heel side protector portion 13 is mounted in the concave portions 7 formed on the left and right side surfaces of the heel portion of the midsole body 5, so that the connection structure between the midsole body 5 and the protective stabilizer 10 is integrated, It makes the appearance better.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a shoe sole arrangement according to an embodiment of the present invention.

FIG. 2 is a perspective view of a state where the shoe sole is combined with the shoe sole.

FIG. 3 is a perspective view of the shoe.

FIG. 4 is a perspective view of a protective stabilizer in the same basic form.

FIG. 5 is a perspective view of a protective stabilizer in one embodiment of the same design.

FIG. 6 is a perspective view of a protective stabilizer according to another embodiment.

FIGS. 7A and 7B are schematic diagrams showing a shock absorbing action and a repulsive action, respectively, in the case of wearing. FIG. 7A is a schematic sectional view of a conventional example, and FIG. 7B is a schematic sectional view of the present invention.

[Explanation of symbols]

L ... Load R ... Rebound 1 ... Sole 2A ... Outsole body 2B ... Outsole body 2B 5 ... Midsole body 6 ... Rising part 7 ... Recess 8 ... Forefoot buffer member 9 ... Heel buffer member 10 ... Protective stabilizer 11 ... Arch protector 11A Side part 12 Ground protector 13 Heel side protector 14 Opening 15 Front foreside extension 20 Upper part 101 Outsole 102 Midsole 103 Shock absorbing / rebounding material

Claims (8)

[Claims] 1. A shoe sole comprising a laminated outsole body and a midsole body, wherein a heel portion of the midsole body is in contact with an arch portion of the midsole body between the outsole body and the arch protector. The sole is provided with a protective stabilizer provided with a portion, a ground protector portion that contacts the bottom surface of the heel portion, and a heel side protector portion that also contacts the left and right side surfaces of the heel portion. 2. The arch protector portion is formed to protrude upwardly when viewed from the side, and has side portions abutting on the left and right side surfaces of the bottom portion of the arch portion protruding from side to side. The shoe sole according to claim 1. 3. The heel side protector portion is erected on the left and right sides of the ground protector portion so as to face each other.
3. The shoe sole according to claim 2, wherein the height gradually decreases from the rear edge to the front edge of the heel portion, and the upper edge line smoothly continues to the upper edge line of the side portion in the arch protector portion. 4. The shoe sole according to claim 1, wherein the heel side protector is mounted in a concave portion formed on the left and right side surfaces of the heel portion of the midsole body. 5. The shoe according to claim 1, wherein a heel cushioning member made of a soft material is fitted and fixed to the heel portion of the midsole body, and the protective stabilizer is formed of a hard material. bottom. 6. An arch protector portion which is interposed and mounted on a heel portion of an outsole body and a midsole body constituting a shoe sole having a laminated structure, and which contacts an arch portion of the midsole body, and a gland which contacts a bottom surface of the heel portion. Protector part,
A protective stabilizer used for shoe soles, comprising a heel side protector portion also abutting the left and right side surfaces of the heel portion. 7. The arch protector portion is formed to project upward with a curved portion protruding upward when viewed from the side surface, and to have side portions abutting on the left and right side surfaces of the bottom portion of the arch portion in a laterally opposed manner. 7. A protective stabilizer for use in a shoe sole according to claim 6. 8. The heel side protector portion is erected on the left and right sides of the ground protector portion so as to face each other.
The shoe sole according to claim 7, wherein the height gradually decreases from the rear edge to the front edge of the heel portion, and the upper edge line smoothly continues to the upper edge line of the side portion in the arch protector portion. Protective stabilizer used.