JP3026779B2 - Spike shoes - 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 shoe having a plurality of projections attached to a tread surface of a shoe sole, and more particularly to a baseball spike shoe.

[0002]

2. Description of the Related Art Conventionally, in spike shoes of this kind,
The number of protruding pieces arranged inside the shoe center line and the number of protruding pieces arranged outside are configured to be the same number, and the inner protruding piece and the outer protruding piece are They are arranged almost symmetrically (for example, see Japanese Utility Model Registration No. 3015023).

[0003]

By the way, at the time of batting, the spike shoes worn on the stepped foot (foot on the pitcher side) bite into the ground, but the spike shoes remain on the pitcher side. Sliding and flowing causes a problem that the so-called stepped wall of the foot collapses. When such a problem occurs, there is a problem that the batting form collapses and it becomes easy to hit. Therefore, the stepped foot wall is disposed inside the center line of the shoe among the plurality of protrusions attached to the tread surface of the sole among the protrusions attached to the tread surface of the sole. From the anti-slip force of the protruding piece,
In conventional spiked shoes, by improving the width of each protruding piece and the inclination of each protruding piece with respect to the front-rear direction, etc. disposed inside the center line of the shoe sole, the anti-slip force against steps during batting is improved. In this case, it is possible to increase the slip resistance against the steps, but the slip resistance against actions other than the steps may be reduced. It was difficult to improve the anti-slip force of the shoes on the pitcher side, and there was still room for improvement.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its main object a rational distribution of the number of projecting pieces arranged on a tread surface of a shoe sole with respect to a shoe center line. The present invention is intended to provide a spike shoe in which the batting form is hardly disintegrated while suppressing the decrease in the anti-slip force for operations other than steps, while improving the anti-slip force for steps.

[0005]

According to a first aspect of the present invention, there is provided a spike shoe having a plurality of projections attached to a tread surface of a sole. there are number of projecting pieces disposed on the inside of the shoe center line, configured larger than the number of projecting pieces are disposed outside
The plurality of protruding pieces are formed on the sole of the shoe along the base of the toe.
A toe seat plate fixed to the toe side of the bending line;
The middle seat plate fixed to the arch side of the line and the heel side
And the heel seat plate is distributed and formed,
The intermediate seat plate is formed with three protruding pieces.
Two protruding pieces are arranged in the front and rear direction inside the core wire, and
State where the ball of the foot of the foot is located in the middle part between the two inner protruding pieces
In that it is fixed to the sole of the shoe . According to the above characteristic configuration, the number of protruding pieces disposed inside the shoe center line of the shoe sole is increased, and the number of protruding pieces disposed inside the shoe center line is disposed outside. The number of the protruding pieces is larger than the number of the protruding pieces, and the increased protruding pieces can increase the anti-slip force that suppresses the spike shoes of the stepped foot from slipping to the pitcher side during batting. Therefore, since it is only necessary to increase the number of protruding pieces arranged inside the shoe center line of the sole, it is possible to improve the slip resistance against the steps while suppressing the decrease in the slip resistance against operations other than steps. To prevent the collapse of the stepped foot wall,
The batting form can be made difficult to collapse. I
The seat plate on which the projecting pieces are distributed is the base of the toe
Is not on the bending line of the sole along the
Can be bent along the curved line,
Smooth weight shift from heel to toe during dash
And leaning forward only by landing on the toe side
The dash in the posture can be easily performed . Therefore
On running and dashing, it is formed on the toe seat plate
Naoko that smoothly kicks out the ground with the protrusion
It can exert a strong kicking power. Change
For example, one protruding piece inside the shoe center line of the intermediate seat
The toe side rather than the arch compared to the
At the time of batting
Anti-slip to prevent the fuse from slipping to the pitcher side
Power can be increased. Moreover, the center line of the shoe on the sole
The first half of the inside, from the toe to the front end of the arch
In baseball that is often kicked out with a kick, it digs into the ground at that time
The spike shoe on the right foot as much as the number of protruding pieces increases
Base running that changes the direction of travel
The right foot spikes
Easy kicking and strong kick when dashing
Can be done. Therefore, the stepped foot wall
Collapse, especially on the toe side of the sole of the shoe
If there is a factor in the slipper to the
The collapse of the foot wall can be effectively suppressed. And baseball
Kick the bass while making a smooth turn when exercising
And run faster when dashing.
Can be. Furthermore, the intermediate seat plate is formed inside the center line of the shoe.
The two protruding pieces and the ball of the foot are in the direction of the tread surface of the sole.
The two protruding pieces from the ground
The ground reaction force received in the upward direction was distributed by the intermediate seat plate
Since it acts on the ball of the ball, for example, the protrusion and the ball of the ball
The ground on the ball of the thumb, compared to the case of stacking vertically
You can reduce the feeling of thrust from the top, wear spike shoes
Comfort can be improved.

The spike shoe according to a second aspect of the present invention is characterized in that three protruding pieces are formed on the toe seat plate, and one protruding piece is disposed inside the center line of the shoe.
And, while one protruding piece is disposed outside the shoe center line, on the toe side than a position connecting the two protruding pieces,
One protruding piece that intersects the shoe center line is fixed to the shoe sole in a state where the protruding piece is disposed, and the height of each of the inner protruding piece of the toe seat plate and the inner front protruding piece of the intermediate seat plate is further increased. However, the present invention is characterized in that the height is smaller than the height of the toe-side protruding piece of the toe seat plate and the inner rear protruding piece of the intermediate seat plate. According to the above-mentioned characteristic configuration, in the first half portion from the toe of the shoe sole to the front end of the arch, and on the inner portion including the center line of the shoe, the toe-side protruding piece, the inner protruding piece, and the intermediate seating plate of the toe seat plate are provided. Since the four protruding pieces with both inner protruding pieces are arranged close to each other, it is possible to effectively suppress the collapse of the stepped foot wall caused by the slip on the toe side rather than the arch, and the base. When running, you can kick the base while making a smooth turn, and you can run faster when sprinting, but on the other hand, soil easily adheres to these four protrusions, and if such soil adhesion occurs At the time of landing, the bite amount of the four protruding pieces is reduced, and the first half of the inside of the shoe center line of the sole and extending from the toe to the front end of the arch rises from the ground more than the other part, and The first half is centered on shoes There is a problem that the tilt of the outside. However, in the present invention,
Of the four protruding pieces connected along the front-rear direction, the height of two protruding pieces located at the middle in the front-rear direction is configured to be smaller than the height of the other two protruding pieces. Compared to the case where each of the four projecting pieces is configured to have the same height, the detachment performance of the adhered soil can be enhanced by an amount corresponding to the weakening of the soil holding force by these four projecting pieces. Suppress the outward tilt of the first half of the foot caused by soil,
It is possible to improve the sense of stability in the inside and outside directions at the time of landing.

The spike shoes according to a third aspect of the present invention are characterized in that the width of the base of each of the inner protruding piece of the toe seat plate and the inner front protruding piece of the intermediate seat plate is smaller than that of the toe seat plate. The width of the base of the toe side protruding piece and the width of the base of the inner rear protruding piece of the intermediate seat plate are configured to be smaller, and the inner protruding piece of the toe seat plate and the inner front protruding piece of the intermediate seat plate. Is characterized in that the width of each tip is smaller than the width of the tip of the toe-side projection of the toe seat plate and the width of the tip of the inner rear projection of the intermediate seat plate. According to the characteristic configuration, the front half of the shoe sole from the toe to the front end of the arch, and of the four protruding pieces disposed close to the inner part including the center line of the shoe, located at the middle in the front-rear direction. By making the two protruding pieces to be not only higher in height but also smaller in width than the other two protruding pieces,
Further, the soil holding power can be reduced, and the performance of removing the adhered soil can be further enhanced. Therefore, when landing, it is possible to further suppress the outward tilt of the front half of the foot, and as a result, it is possible to further improve the sense of stability in the inward and outward directions at the time of landing.

According to a fourth aspect of the present invention, there is provided a spiked shoe, wherein the heel seat plate is provided with at least three protruding pieces inside the center line of the shoe and outside the center line of the shoe. Two protrusions are provided, and at least one of the inner protrusions is configured to be in a posture along the front-rear direction,
The other at least four protruding pieces are configured so as to be substantially opposed to each other in two diagonal directions crossing the shoe center line in an X shape. According to the above-mentioned characteristic configuration, the other at least four protruding pieces are arranged in a balanced manner inside and outside the shoe center line in a posture in which the at least four protruding pieces substantially oppose each other in two diagonal directions crossing the shoe center line in an X shape. Since it is provided, it is possible to stably support the heel side in a state where it lands, and it is possible to apply an anti-slip force evenly to any of 360 degrees along the ground. In addition, due to the presence of the protruding pieces that are arranged inside the center line of the shoe and extend in the front-back direction, on the heel side, when batting, the spike shoes of the stepped foot are prevented from slipping to the pitcher side. Although the anti-slip force can be increased, the protruding piece has a posture along the front-rear direction, so that it can be less likely to be caught on the ground during linear running and dashing. Therefore, no matter what angle the landing, start, and stop operations on the heel side are, the slip associated with this operation can be suppressed. Moreover,
The stepped collapse of the wall of the foot, particularly when there is a factor in the slip of the shoe sole toward the pitcher side of the heel side, while the collapse of the stepped wall of the foot can be effectively suppressed, Does not adversely affect running and dashing. In particular, in the case of a combination of the feature configuration according to claim 3 and the feature configuration according to claim 6,
Even if the cause of the collapse of the stepped foot wall is slipping to the pitcher side of the toe side rather than the arch, or sliding to the pitcher side of the heel side, the effect of the stepped wall collapse is effective. Can be suppressed.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1A and 1B show a plurality of protrusions 3 attached to a tread surface 2 of a shoe sole 1 made of leather or a flexible synthetic resin. There is a shoe center line Y
The number of the protruding pieces 3 disposed on the inside (the side that becomes the inner edge of the sole when worn) is determined by the number of the protruding pieces disposed on the outer side (the side that becomes the outer edge of the sole when worn) 3 shows a preferred embodiment of a spike shoe S of the present invention configured to be larger than three. As shown in FIG. 1A, the plurality of protruding pieces 3 are fixed to the toe side of the bending line X of the shoe sole 1 along the base of the finger of the foot F in a state where the spike shoes S are worn. A substantially triangular toe seat plate 4 and a substantially Y-shaped intermediate seat plate 5 fixed to the arch side of the bending line X
And a substantially trapezoidal heel seat plate 6 fixed to the heel side. Each of the toe seat plate 4, the intermediate seat plate 5, and the heel seat plate 6 has a tread surface of the shoe sole 1 in a fastening hole 7 formed at three places through the seat plates 4, 5, and 6, respectively. A nail 8 as a fastener projecting from 2 is inserted, and a portion of the nail 8 projecting from the fastening hole 7 is bent and fixed to the tread surface 2 of the shoe sole 1.

Hereinafter, each of the toe seat plate 4, the intermediate seat plate 5, and the heel seat plate 6 on which the protruding pieces 3 are formed in a distributed manner will be described in detail. Each of the toe seat plate 4, the intermediate seat plate 5 and the heel seat plate 6 is formed of a highly durable metal such as steel, an aluminum alloy, titanium or the like together with the protruding pieces 3.

As shown in FIG. 2, the toe seat plate 4 includes
A through hole 9 for reducing the weight is formed at the center thereof, and a protruding piece 3 is integrally bent at each of the three top portions of the toe seat plate 4. Each protruding piece 3 of the toe seat plate 4 is formed into a sharp trapezoidal shape. Further, a reinforcing rib 10 is formed by punching a bent base portion of each protruding piece 3, and a tip of each protruding piece 3 is formed. A U-shaped notch 11 penetrating in the thickness direction is formed at the center position of.
As shown in (a) of FIG. 1, each of the three protruding pieces 3 of the toe seat plate 4, when the spike shoes S are worn, on the tread surface 2 of the sole 1. A first portion of the shoe center line Y on the curved shoe center line Y along the center of the surface 2 and substantially corresponding to a portion extending between the tip of the thumb f1 and the tip of the second finger f2 of the foot F A second portion that is inside and substantially corresponds to the base of the thumb f1, and a third portion that is outside the shoe center line Y and substantially corresponds between the base of the fourth finger f3 and the base of the little finger f4. It is arranged in a state where it is located at the site. That is, the toe seat plate 4 has one protruding piece 3 disposed inside the shoe center line Y, and one protruding piece 3 disposed outside the shoe center line Y. One protruding piece 3 that intersects the shoe center line Y closer to the toe than the position where the protruding pieces 3 are connected
Is fixed to the shoe sole 1 in a state where it is disposed. Further, of the three protruding pieces 3 of the toe seat plate 4, the first protruding piece 3A disposed at the first portion is set so that one of its uneven surfaces faces the toe side, The second protruding piece 3B disposed at the second portion has one of its depressed planes set to a position facing slightly inward, and the third protruding piece 3B disposed at the third portion. 3C is set in a posture in which one of the deflected planes is directed slightly outward.

As shown in FIG. 4, the intermediate seat plate 5 includes
A through hole 9 for reducing the weight is formed at the center thereof, and a protruding piece 3 is integrally formed at each of three ends of the intermediate seat plate 5. Each protruding piece 3 of the intermediate seat plate 5 is formed in a sharp trapezoidal shape. Further, a reinforcing rib 10 is formed by punching a bent base portion of each protruding piece 3, and a tip of each protruding piece 3 is formed. A U-shaped notch 11 penetrating in the thickness direction is formed at the center position of. As shown in (a) of FIG. 1, each of the three protruding pieces 3 of the intermediate seat plate 5 has the center of the shoe on the tread surface 2 of the sole 1 when the spike shoes S are worn. A fourth portion corresponding to the inside of the line Y and substantially in the middle between the second portion and the ball f5, a fifth portion substantially corresponding to the position immediately after the ball f5, and the center line Y of the shoe. It is disposed outside and at a sixth portion substantially corresponding to the lateral side of the ball of the thumb f5. That is, the intermediate seat plate 5 has the two protruding pieces 3 arranged in the front-rear direction inside the shoe center line Y, and the ball of the foot f5 of the foot constitutes the fourth protruding pieces 3. The shoe sole 1 is located at an intermediate portion between the fourth protruding piece 3D disposed at the portion and the fifth protruding piece 3E disposed at the fifth portion.
It is fixed to. Further, the fourth part disposed at the fourth part
The protruding piece 3D is set so that one of its planes faces inward and forward, and the fifth protruding piece 3E disposed in the fifth portion has one of its planes facing inward and rearward. The sixth protruding piece 3F disposed at the sixth portion is configured so that one of its deflected faces faces outward and rearward.

As shown in FIG. 6, the heel seat plate 6 has a through hole 9 formed at the center thereof for reducing the weight. A protruding piece 3 is integrally bent and formed at one of the positions corresponding to one of the top portions. Each protruding piece 3 of the heel seat plate 6 is formed in a sharp trapezoidal shape, and a reinforcing rib 10 is formed by punching out a bent base of each protruding piece 3. As shown in FIG. 1A, each of the five protrusions 3 of the heel seat plate 6, when the spike shoes S are worn on the tread surface 2 of the sole 1, is the center of the shoe. Inside the line Y and
A seventh portion substantially corresponding to the front end side of the heel, an eighth portion outside the shoe center line Y and substantially corresponding to the front end side of the heel
A ninth part, which is inside the shoe center line Y and substantially corresponds to the rear end side of the heel, and a tenth part which is outside the shoe center line Y and substantially corresponds to the rear end side of the heel It is arranged in a state that is located between the seventh part and the ninth part and at an eleventh part substantially corresponding to a position close to the seventh part. In other words, the heel seat plate 6 has a shoe center line Y
Are fixed to the shoe sole 1 in a state in which three protruding pieces 3 are disposed inside and the two protruding pieces 3 are disposed outside the shoe center line Y. Further, the seventh protruding piece 3G disposed in the seventh portion has one of its decentered planes set to the inside frontward position, and the eighth protruding piece 3G disposed in the eighth portion. 3H has a ninth protruding piece 3I disposed at the ninth portion, with one of its decentered planes facing outward and forward.
Has a tenth projecting piece 3J disposed at the tenth portion, with one of its decentered planes facing inward and rearward.
Is set so that one of the planes faces outward and rearward, and the eleventh protruding piece 3K disposed in the eleventh portion is configured so that one of the planes is oriented in the front-rear direction. Is set to That is, the first inside of the shoe center line Y
One protruding piece 3K is configured to be in a posture along the front-rear direction, and the other four protruding pieces 3G, 3H, 3I, and 3J are substantially opposed to each other in two diagonal directions intersecting the shoe center line Y and X. Since it is configured, it is possible to apply an anti-slip force evenly in any direction of 360 degrees along the ground, and even if the landing, start and stop operations on the heel side are at any angle, The accompanying slip can be suppressed. Further, the five protrusions 3G, 3H, 3I, 3J, 3
K is disposed in a state where it is substantially located on one virtual circle R along the tread surface 2 of the sole 1, so that the spike shoes S
Are rotated around the center of the virtual circle R,
The resistance (anti-slip force) that the three projecting pieces 3G, 3H, 3I, 3J, and 3K receive from the ground is small, and the body direction can be changed more quickly during the defense by turning around the heel side. A U-shaped penetrating in the thickness direction is located at the center of the tip of each of the eighth protruding piece 3H, the ninth protruding piece 3I, and the tenth protruding piece 3J, excluding the seventh protruding piece 3G and the eleventh protruding piece 3K. A notch 11 is formed. Further, the seventh protruding piece 3G and the eleventh protruding piece 3K which are close to each other are separately formed by bending from the heel seat plate 6, and a gap 12 which opens horizontally is formed between them. As compared with the case where the adjacent edge of the seventh protruding piece 3G is in contact with the adjacent edge of the eleventh protruding piece 3K, the soil is less likely to adhere between the adjacent pieces.

As described above, the toe seat plate 4, the intermediate seat plate 5, and the heel seat plate 6 are provided on the tread surface 2 of the shoe sole 1 in the above-described state.
Are fixed to each other, except for the first protrusion 3A located on the shoe center line Y, the six protrusions 3 are disposed inside the shoe center line Y, and Center line Y
, Four protruding pieces 3 are arranged outside the. Therefore, at the time of the batting step, the second protruding piece 3B, the fourth protruding piece 3D, and the fifth protruding piece 3 disposed inside the shoe center line Y of the sole 1 of the spike shoe S of the stepped foot.
E, since the six protruding pieces of the seventh protruding piece 3G, the ninth protruding piece 3I, and the eleventh protruding piece 3K cut into the ground, the number of protruding pieces disposed inside the shoe center line Y is five or less. In comparison with the case, the spike shoes S of the stepped foot have a higher anti-slip force to prevent the spike shoes S from slipping on the ground and flowing toward the pitcher side (outside), and accordingly the wall of the stepped foot is prevented from collapsing. And the collapse of the batting form immediately after the step can be suppressed. Further, during the period from the impact of the batting to the follow-through, the first projection 3A, the second projection 3B and the third projection 3C bite into the ground to exert a large anti-slip force, whereby the hind foot is effectively used. It is also possible to prevent the batting form from collapsing between the impact and the follow-through.

Further, when dashing, especially when dashing in a forward leaning posture only by landing on the toe side, the shoe sole 1 bends along the bending line X, so that the shoe center line Y of the shoe sole 1 of the spike shoes S. The fifth part disposed in the inner front half of the
After the projecting piece 3E and the fourth projecting piece 3D cut into the ground, the second
The protruding piece 3B and the first protruding piece 3A can be cut into the ground in that order, and the weight can be smoothly moved from the side of the thumb ball f5 to the side of the toe. As a result, the first protrusion 3A formed on the toe seat plate 4 can smoothly kick out the ground, and can exert a strong kicking force.

FIGS. 1 (b) and 3 (a), (b) and FIG.
As shown in (a) and (b), the second projection 3B of the toe seat plate 4 and the fourth projection 3D of the intermediate seat plate 5 are formed at the same height, and the toe seat is provided. The first protruding piece 3A of the plate 4 and the fifth protruding piece 3E of the intermediate seat plate 5 are configured at the same height,
Further, the height H1 of each of the second projection 4B and the fourth projection 3D is smaller than the height H2 of the first projection 3A and the fifth projection 3E. The bent base of the second protruding piece 3B and the bent base of the fourth protruding piece 3D are formed to have the same width, and each of the second protruding piece 3B and the fourth protruding piece 3D is bent. The width W1 of the base is smaller than the width W2 of the bent base of the first protrusion 3A and the width W3 of the bent base of the fifth protrusion 3E, and the width W1 of the bent base of the first protrusion 3A. Width W2
Are larger than the width W3 of the bent base of the fifth protruding piece 3E. Further, the tip of the second projection 3B and the fourth projection 3D
And the tip have the same width, and the second protruding piece 3
The width W4 of the tip of each of B and the fourth protruding piece 3D is configured to be smaller than the width W5 of the tip of the first protruding piece 3A and the width W6 of the tip of the fifth protruding piece 3E. Width W5 of tip of piece 3A
Are larger than the width W6 of the tip of the fifth protruding piece 3E. Specifically, the second protruding piece 3B and the fourth protruding piece 3D have a height H1 of about 12 mm and a width W1 of the bent base of about 1 mm.
4 mm, and the width W4 of the tip is about 10 mm. The first protruding piece 3A has a height H2 of about 14 mm, a bent base width W2 of about 17 mm, and a tip width W5 of about 15 mm. The fifth protrusion 3E has a height H2 of about 14 m.
m, the width W3 of the bent base is about 15 mm, and the width W6 of the tip is about 11 mm. Although not shown, each of the third projection 3C, the sixth projection 3F to the eleventh projection 3K is
The height is configured to be about 14 mm.

[Other Embodiments] In the above embodiment, each of the toe seat plate 4, the intermediate seat plate 5, and the heel seat plate 6, on which the protruding pieces 3 are formed in a distributed manner, is made of steel or aluminum alloy together with the protruding pieces 3. , Titanium, etc., but each of the toe seat plate 4, the intermediate seat plate 5, and the heel seat plate 6, together with the protruding piece 3, is made of a non-metal such as ceramic, FRP, carbon fiber, or the like. Alternatively, it may be integrally molded from a highly durable synthetic resin. If the toe seat plate 4 and the intermediate seat plate 5 are not located on the bending line X, and the arrangement positions of the protruding pieces 3 and their postures are configured in the same manner as in the above-described embodiment. For example, the shape of each of the toe seat plate 4, the intermediate seat plate 5, and the heel seat plate 6 is not limited to the shape described in the above embodiment, and may be appropriately changed. A U-shaped notch 11 that penetrates in the thickness direction may be formed at the center of the tip of the seventh protruding piece 3G and the eleventh protruding piece 3K formed on the heel seat plate 6. In the embodiment, each of the toe seat plate 4, the intermediate seat plate 5 and the heel seat plate 6, on which the protruding pieces 3 are formed in a distributed manner, is connected to the tread surface 2 of the sole 1 by using a nail 8 as a fastener. However, rivets, bolts and nuts may be used as fasteners. The height of each protruding piece 3, and
The width of the bent base and the width of the distal end of the first protruding piece 3A, the second protruding piece 3B, the fourth protruding piece 3D, and the fifth protruding piece 3E are not limited to the dimensions exemplified in the embodiment. , Can be changed as appropriate.

[Brief description of the drawings]

FIG. 1A is a bottom view of the spike shoes of the present invention. FIG. 1B is a side view of the spike shoes of the present invention.

FIG. 2 is a perspective view of a toe seat plate.

3A is a cross-sectional view showing a first protruding piece. FIG. 3B is a cross-sectional view showing a second protruding piece.

FIG. 4 is a perspective view of an intermediate seat plate.

5A is a sectional view showing a fourth protruding piece, and FIG. 5B is a sectional view showing a fifth protruding piece.

FIG. 6 is a perspective view of a heel seat plate.

[Explanation of symbols]

 Reference Signs List 1 shoe sole 2 tread surface 3 protruding piece 4 toe seat plate 5 intermediate seat plate 6 heel seat plate F foot f5 ball of thumb X bending line Y shoe center line H1 height H2 height W1 base width W2 base width W3 Base width W4 Tip width W5 Tip width

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A43B 13/26 A43C 15/02

Claims (4)

(57) [Claims] 1. A spike shoe in which a plurality of protruding pieces are attached to a tread surface of a shoe sole, wherein the number of protruding pieces disposed inside a center line of the shoe is set outside. And the plurality of protruding pieces
But on the toe side of the bending line of the sole along the base of the toe
On the toe seat plate to be fixed and on the arch side of the bending line
The middle seat plate to be fixed and the heel seat plate to be fixed to the heel side
While being formed dispersed, the intermediate seat plate has three
A protrusion is formed, and two protrusions are provided inside the shoe center line.
Pieces are arranged in the front-rear direction, and
It is fixed to the sole with the ball of the foot in the middle
That spike shoes. 2. The toe seat plate is formed with three protruding pieces, one protruding piece is disposed inside the shoe center line, and one protruding piece is formed outside the shoe center line. The shoe is fixed to the shoe sole in a state where a piece is disposed and one piece intersecting with the center line of the shoe is arranged closer to the toe than a position connecting the two pieces. The height of each of the inner protruding piece of the seat plate and the inner front protruding piece of the intermediate seat plate is smaller than the height of the toe side protruding piece of the toe seat plate and the inner rear protruding piece of the intermediate seat plate. The spike shoe according to claim 1 , wherein the spike shoe is made. 3. The width of the base of each of the inner protruding piece of the toe seat and the inner front protruding piece of the intermediate seat is the width of the base of the toe-side protruding piece of the toe seat and the intermediate seat. The width of the tip of each of the inner protruding piece of the toe seat and the inner front protruding piece of the intermediate seat is configured to be smaller than the width of the base of the inner rear protruding piece. The spike shoe according to claim 2, wherein the width of the tip of the toe-side projection and the width of the tip of the inner rear projection of the intermediate seat plate are smaller. 4. The heel seat plate is provided with at least three protruding pieces inside the shoe center line, and two protruding pieces outside the shoe center line, At least one of the inner protrusions is configured to be in a posture along the front-rear direction, and at least four other protrusions are configured to be substantially opposed to each other in two diagonal directions crossing the shoe center line in an X shape. The spike shoe according to claim 1, 2, or 3 .