JP3386653B2 - Spike pin and shoe sole having spike pin - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spike pin mainly used in athletics spike shoes, and more effectively grips the ground, and the spike pin is sunk in the sole body to give a feeling of being pushed up. The present invention relates to a spike pin having a structure for relaxing the above.

[0002]

2. Description of the Related Art Conventionally, spike shoes suitable for various eyes have been used for the purpose of surely transmitting a kick force during exercise to a road surface. Those spike shoes have a spike pin on the bottom surface of the sole made of a flexible material, and a spike pin having a circular flange at the base is often used. For example, Japanese Utility Model Laid-Open No. 57-31903 discloses a spike shoe characterized in that a rib member made of a synthetic resin is abutted against a shoe sole by a ridge formed on a shaft portion and screwed.

[0003]

However, the spike pin body and the flange that encloses the base of the spike pin are made of a harder material such as metal or hard resin than the shoe sole body. Therefore, when the spike pin receives pressure from the ground, the entire flange portion is depressed in the sole body, which gives an unpleasant push-up feeling to the sole of the wearer. Also, while walking or running, the spike pin receives a force from an oblique direction immediately before it stabs on the ground or immediately before leaving the ground,
As a result of the phenomenon that the spike pin collapses, the flange formed of a hard material is partially buried in the sole body of the shoe, and the sole of the wearer is repeatedly pressed, resulting in a so-called bean. In addition, the fall just before stabbed the ground prevents the spike pin from stabping the ground accurately, and the force of the kicking foot cannot be accurately transmitted to the ground. When used in competitions where various stresses are applied, there are inconveniences such as spike pins breaking due to diagonally applied stress.
Therefore, there has been a demand for a technique for preventing the spike pin from sinking or falling while having flexibility so as not to hinder the flexibility of the sole.

Further, in the conventional spike shoes, particularly spike shoes for athletics, which can be divided into a braking area and an acceleration area of the sole bottom surface, the braking force is quickly applied when the braking area is in contact with the ground. It is desirable for the athlete to change its position and enter the acceleration system, and it is desirable that the acceleration force is exerted as soon as possible when the acceleration area touches down.

[0005]

Therefore, the shapes of the flanges of various spike pins are improved so that the spike pins and the flanges can be effectively prevented from sinking or falling into the sole body, and the spike pins can effectively prevent the ground from falling. Designed to hold. That is, when the relationship between the weight movement path shown on the bottom surface of the shoe bottom and the direction in which the spike pin falls when the athlete runs, it was found that the spike pin fell in the movement direction of the weight movement path. Therefore, in order to effectively prevent the spike pin from collapsing, a circular flange-shaped flange that has been conventionally used is not sufficient, and at least a part of the flange is formed into a plate shape along the direction in which the spike pin falls. Extend and reinforce. Further, by determining the shape and hardness of the flange based on the foot pressure distribution history measuring method and anatomical data, the flexibility of the shoe sole body is not hindered. Further, a plate is provided on the peripheral portion of the flange to effectively convert the vertical force exerted on the spike pin of the athlete into braking force and acceleration force in the traveling direction.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION A spike pin according to the present invention is a spike pin fixed or embedded in a shoe sole of a competition shoe, the spike pin body being made of a hard synthetic resin,
A spike pin is characterized in that a flange is formed integrally with the spike pin main body from a bottom surface portion of the spike pin main body, and a plate is extended to at least one position of a peripheral edge portion of the flange.

Further, in the spike pin, a spike pin main body made of a hard synthetic resin and a flange are integrally formed with the spike pin main body from the bottom surface of the spike pin main body, and the flange is formed at two positions on the periphery of the flange. The plates are extended, and the angle between one plate and the other depends on the position where the spike pin is placed.
It is determined in the range of 0 ° to 180 °. The angle between the plates is defined by the angle formed by the center lines of the plates.

The spike pin body according to the present invention is made of a hard synthetic resin such as polycarbonate or ABS resin. In order to reduce wear of the spike pin body and prevent it from breaking, the spike pin body is made of a hard synthetic resin. It is also possible to enclose a metal core body inside the so that its tip portion slightly protrudes from the tip portion of the spike pin body.

The shape of the plate of the spike pin according to the present invention can be selected from a rectangular shape and an oval shape, but it is preferable that the outer periphery of the flange and the plate is formed into an oval shape. Is. In the spike pin, the length from the center line of the spike pin body to the tip of the flange is 25 mm to 35 mm.
It is also preferable that the plate is curved in the bottom surface of the flange with a curvature radius of 80 mm to 100 mm.

The body, flange and plate of the spike pin according to the present invention have a flexural modulus of 10000 kg / cm 2.
It is made of a hard synthetic resin (thermoplastic resin) of 30,000 kg / cm @ 2. The hard synthetic resin can be appropriately selected from those conventionally used such as polycarbonate and ABS resin, but a resin suitable for injection molding is preferable.

It is also possible to provide at least one auxiliary protrusion on the upper surface of the plate. The height of the auxiliary protrusion is lower than the height of the spike pin body,
The shape can be appropriately selected from a cone shape, a pyramid shape, a block shape, and the like.

The shoe sole according to the present invention comprises the above-mentioned items 1 to 1.
1. A shoe sole of a spike shoe for competition in which the spike pin described in any one of 1 is fixed or embedded in the bottom surface, wherein the spike pin is used as a weight movement path during competition shown on the bottom surface of the shoe sole. A shoe sole of a competition spike shoe, wherein the shoe sole is arranged along the same and the direction in which the plate of the spike pin extends is matched with the direction of the weight movement path. Here, the weight movement path refers to a time shift of the center of pressure applied to the sole of the foot during a series of movements from the ground contact of the heel to the release of the toe. The method of fixing or embedding the spike pin according to the present invention in the shoe sole is to install the spike pin separately formed in the shoe sole molding die,
A method of embedding it integrally with the sole body by a direct injection manufacturing method is suitable.

[0013]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of an embodiment of the spike pin according to the present invention. FIG. 2 is an end view of a main portion showing a state in which the spike pin according to the present invention is embedded in the sole body.
It is an end view of the X-ray. FIG. 3 is a plan view of a sole of an athletics spike shoe using a spike pin according to the present invention. FIG. 4 is a diagram showing dimensions and the like of the spike pin according to the embodiment of the present invention. FIG. 5 is a conceptual diagram showing the force acting on the spike pin during the braking phase in the land spike shoe using the spike pin according to the present invention. FIG. 6 is a conceptual diagram showing the force acting on the spike pin in the acceleration phase in the land spike shoe using the spike pin according to the present invention. FIG. 7 is a plan view of another embodiment of the spike pin according to the present invention. FIG. 8 is a plan view of a sole of an athletic spike shoe using another spike pin according to the present invention. FIG. 9 is a conceptual diagram showing the force acting on the spike pin during the braking phase in the land spike shoe using the spike pin according to the present invention. FIG. 10 is a conceptual diagram showing the force acting on the spike pin in the acceleration phase in the land spike shoe using the spike pin according to the present invention.

As shown in FIG. 1, a spike pin 1 according to the present invention is a spike pin that is fixed or embedded in the sole of a sports shoe, and includes a spike pin body 4 made of hard synthetic resin and a spike pin body. A flange 2 is formed integrally with the spike pin body 4 from the bottom surface of the spike pin 4, and the plate 3 is extended to at least one location of the peripheral edge portion 6 of the flange 2. Figure 2
As shown in FIG. 5, the spike pin body 4 includes a core body 5 for the purpose of improving the wearability of the tip end portion of the spike pin body 4 and enhancing the rigidity. The core body 5 is included so that its tip portion slightly protrudes from the tip portion of the spike pin body 4, and the material can be selected from those having excellent wear properties such as metal or ceramics, but carbon steel, high speed Steel, high-strength aluminum alloy, and sintered zirconia are suitable.

The external shape of the spike pin 1 is rectangular,
Although it can be selected from an oval shape or the like, it is preferable that the outer periphery of the flange 2 and the plate 3 is formed in an oval shape. Further, as shown in FIG. 4, the dimension of the spike pin is 25 m in length L from the center line of the spike pin body to the tip of the flange.
The width B is approximately the same as the width of the flange 2 and is 10 mm to 20 mm, and both ends are formed in an arc shape having a radius of curvature r of 5 mm to 10 mm. Is preferred. The plate 3
The thickness should be determined in relation to the hardness of the synthetic resin used, but is in the range of about 1.0 mm to 3.0 mm. Further, the plate 3 can be curved within the bottom surface of the flange 2 with a radius of curvature R of 80 mm to 100 mm. By bending the plate 3 in this manner, the plate 3 can be accurately arranged along the weight transfer path.

FIG. 3 is a plan view of the bottom surface of the sole when the spike pin according to the present invention is applied to a spike shoe for athletics. The arrow shown in FIG. 3 indicates the weight movement route when the athlete runs, but the spike pin 1 according to the present invention is arranged substantially along the weight movement route. Further, in the braking area on the bottom surface of the sole, the plate 3a is arranged in the opposite direction to the weight movement path, while in the acceleration area, the plate 3b is arranged in the same direction as the weight movement path.

By arranging the pins in this way,
During the braking and accelerating phases of a series of running motions, the plate located in the braking area and the plate located in the accelerating area on the bottom of the shoe sole function so that the braking force is the earliest when the braking area touches down. The player can change the position and enter the acceleration system, and when the acceleration area touches the ground, the acceleration force can be exhibited quickly.

That is, in the braking phase, as shown in FIG. 5, at the moment when the tip of the spike pin touches the ground, the plate 3 having rigidity arranged in the braking area moves in the traveling direction against the bending of the sole. Form a slope in the opposite direction. In this state, a pressure F is exerted on the track surface from the tip of the spike pin body 4 from the sole of the athlete through the sole of the shoe, and the pressure F is a horizontal component force fr and a vertical component force fb. Is decomposed into. At the tip of the spike pin body 4, the horizontal component fr
As a drag force of, the braking force fs acts in the direction opposite to the traveling direction, and it becomes possible to effectively convert a part of the pressure exerted by the athlete to the braking force.

On the other hand, in the acceleration phase, as shown in FIG. 6, at the moment when the tip of the spike pin touches the ground, the plate 3 having rigidity arranged in the acceleration region resists the bending of the shoe sole in the traveling direction. Form a slope in the direction. In this state, pressure F is exerted on the track surface from the tip of the spike pin body 4 from the sole of the athlete through the sole of the shoe, and the pressure F is the horizontal component force fr and the vertical component force fb. Is decomposed into. At the tip of the spike pin body 4, a horizontal component f
As the drag force of r, the braking force fs acts in the traveling direction, and it becomes possible to effectively convert a part of the pressure exerted by the player to the acceleration force.

Another embodiment according to the present invention is shown in FIG.
7A and 7B show the peripheral edge portion 6 of the flange 2.
The plate 3 is extended from two places,
(C) is also extended from three places. In this way, when the plurality of plates 3 are extended, the angle θ between the plates is 30 in relation to the weight movement path on the bottom surface of the shoe sole to which the spike pin is fixed and the acceleration region and the braking region. Determined between ° and 180 °. As shown in FIG. 8, in the spike pin 1, the spike pin main body 4 is arranged on the weight movement path and near the boundary between the braking region and the acceleration region, and one plate 3a is in the braking region and the other plate 3a is in the braking region. The plate 3b is arranged so as to be located in the acceleration region.

In this case, the plates 3a and 3b continuously function in the braking phase and the acceleration phase in a series of running motions, which contributes to the improvement of the competitiveness of the athlete. That is, as shown in FIG. 9, in the braking phase, at the moment the tip of the spike pin body 4 comes into contact with the ground, the rigid plate 3a arranged in the braking area is opposed to the advancing direction against the bending of the shoe sole. Form a slope in the direction. In this state, pressure F is exerted on the track surface from the tip of the spike pin through the sole of the athlete through the sole of the shoe, and the pressure F is decomposed into a horizontal component force fr and a vertical component force fb. To be done. At the tip of the spike pin body 4, a braking force fs acts in the direction opposite to the traveling direction as a reaction force of the horizontal component force fr, and it is possible to effectively convert a part of the pressure exerted by the athlete to the braking force. Becomes

At the next moment, the braking phase continuously shifts to the acceleration phase, and as shown in FIG. 10, the rigid plate 3b arranged in the acceleration area is oriented in the traveling direction against the bending of the sole. To form a slope. In this state, a pressure F is exerted on the track surface from the tip of the spike pin body 4 from the sole of the athlete through the sole of the shoe, and the pressure F is a horizontal component force fr and a vertical component force fb. Is decomposed into. At the tip of the spike pin body 4, as a drag force of the horizontal component force fr,
The braking force fs acts in the direction of the traveling direction, and it becomes possible to effectively convert a part of the pressure exerted by the athlete to the acceleration force.

[0023]

The spike pin according to the present invention is installed on the bottom surface of the sole of a spike shoe for competition, and the shoe sole according to the present invention having the spike has a flange along the direction in which the spike pin falls. By extending and reinforcing at least a part of this in a plate shape, it is possible to effectively prevent the fall of the spike pin, and eliminate the inconvenience such as the occurrence of obstacles such as bean on the foot and the damage of the spike pin can do. Further, by determining the shape and hardness of the flange based on the foot pressure distribution history measuring method and anatomical data, the flexibility of the shoe sole body is not hindered.

Furthermore, the spike pin according to the present invention is installed on the bottom surface of the sole of a spike shoe for competitions, and the shoe sole according to the present invention having the spike has a part of the pressure exerted by the athlete. It becomes possible to effectively convert into braking force or acceleration force. Therefore, the braking force is quickly exerted in the braking phase where the braking area is in contact with the ground, the athlete can switch positions and enter the acceleration system, and the acceleration force is exerted quickly in the acceleration phase where the acceleration area is in contact with the ground. It can contribute to the improvement of strength.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of a spike pin according to the present invention.

FIG. 2 is an end view of a main part showing a state in which a spike pin according to the present invention is embedded in a sole body, and is an end view taken along line XX in FIG.

FIG. 3 is a plan view of a sole of a spike shoe for athletics using the spike pin according to the present invention.

FIG. 4 is a diagram showing dimensions and the like of a spike pin according to an embodiment of the present invention.

FIG. 5 is a conceptual diagram showing a force acting on a spike pin during a braking phase in a land spike shoe using the spike pin according to the present invention.

FIG. 6 is a conceptual diagram showing a force acting on the spike pin during an acceleration phase in a land spike shoe using the spike pin according to the present invention.

FIG. 7 is a plan view of another embodiment of the spike pin according to the present invention.

FIG. 8 is a plan view of a sole of a spike shoe for athletics using another spike pin according to the present invention.

FIG. 9 is a conceptual diagram showing a force acting on the spike pin during a braking phase in a land spike shoe using the spike pin according to the present invention.

FIG. 10 is a conceptual diagram showing a force acting on a spike pin in an acceleration phase in a land spike shoe using the spike pin according to the present invention.

[Explanation of symbols]

1 spike pin 2 flange 3 plates 3a plate 3b plate 4 spike pin body 5 core 6 peripheral part 7 shoe sole 8 auxiliary protrusions

Front page continuation (58) Fields surveyed (Int.Cl. ⁷ , DB name) A43B 1/00-23/30 A43C 1/00-17/06

Claims (12)

(57) [Claims] 1. A spike pins that are fastened to or embedded in the athletic shoe soles, such a hard synthetic resin Rikutsusoko
A spike pin main body further protruding, and a flange made of hard synthetic resin is integrally formed with the spike pin main body from the bottom surface of the spike pin main body, and a plate made of hard synthetic resin is formed at least at one of the peripheral portions of the flange. The spike pin is characterized by being extended. Wherein in said spike pin, the spike pin body protruding from Rikutsusoko such a hard synthetic resin, a flange consisting of the spike pin body integrally with the hard plastic from the bottom portion of the spike pin body is formed The spike pin according to claim 1, wherein a plate made of a hard synthetic resin is provided at one location of a peripheral portion of the flange. Wherein in said spike pin, the spike pin body protruding from Rikutsusoko such a hard synthetic resin, a flange consisting of the spike pin body integrally with the hard plastic from the bottom portion of the spike pin body is formed The spike pin according to claim 1, wherein a plate made of a hard synthetic resin is provided at two places on a peripheral portion of the flange. Wherein in said spike pin, the spike pin body protruding from Rikutsusoko such a hard synthetic resin, a flange consisting of the spike pin body integrally with the hard plastic from the bottom portion of the spike pin body is formed The plate made of a hard synthetic resin is extended at two positions on the peripheral edge of the flange, and the angle formed by the center lines of the respective plates is 30 ° to 180 °. The spike pin described. 5. The spike pin, the spike pin body protruding from Rikutsusoko such a hard synthetic resin, a flange consisting of the spike pin body integrally with the hard plastic from the bottom portion of the spike pin body is formed The plate made of a hard synthetic resin is extended at two places on the periphery of the flange, and the angle formed by the center line of each plate is set to 180 °. Spike pin. 6. The spike pin, the interior of the spike pin body protruding from Rikutsusoko such a hard synthetic resin, its projecting end is made of metal so as to slightly protrude from the tip portion of the spike pin body or The spike pin according to any one of claims 1 to 5, wherein a ceramic core is included. 7. The spike pin, spike pin according to claim 1, wherein the outer periphery of the flange and the plate is formed in an oval shape. 8. The spike pin, any one of claims 1 to 7 the length from the center line of the spike pin body to the tip of the flange, characterized in that formed on 25Mm～35mm 1 The spike pin described in the item. 9. The spike pin, spike pin according to any one of claims 1 to 8, characterized in that the plate is curved with a curvature radius of curvature 80mm~100mm in flange bottom surface . 10. The said spike pin, said spike pin body, the flange and the plate flexural modulus 10
The spike pin according to any one of claims 1 to 9, which is made of a hard synthetic resin of 000 kg / cm ^{2 to} 30000 kg / cm ² . 11. The said spike pin, claim 1, wherein said providing at least one auxiliary protrusions on the upper surface of the plate, the height of the auxiliary protrusions is provided lower than the height of the spike pin body The spike pin according to any one of claims 1 to 10. 12. A shoe sole of a spike shoe for competition, wherein the spike pin according to any one of claims 1 to 11 is fixed or embedded in the bottom surface, and the spike pin is on the bottom surface of the shoe sole. The shoe of the spike shoes for competitions, characterized in that the shoe is arranged along the path of weight movement during competition shown in Figure 1, and the direction in which the plate of the spike pin is extended matches the direction of the path of weight movement. bottom