WO2007138947A1

WO2007138947A1 - Sole of spike shoe

Info

Publication number: WO2007138947A1
Application number: PCT/JP2007/060502
Authority: WO
Inventors: Mitsuhiro Nishida; Kenta Moriyasu; Keiko Kakihara
Original assignee: Asics Corporation
Priority date: 2006-05-25
Filing date: 2007-05-23
Publication date: 2007-12-06
Also published as: JPWO2007138947A1; DE112007001242T5; JP4935813B2

Abstract

[PROBLEMS] A sole for a spike shoe, enabling the user to make a more efficient dash. [MEANS FOR SOLVING THE PROBLEMS] The sole (S) for a spike shoe has a resin base (1) and resin cleats (2) integrated with the base (1) and projecting from the base (1) toward the ground. A highly flexible area (R1) including a first foot interphalangeal joint (J1) and extending obliquely toward the front of the foot from its inside (IN) toward its outside (OUT) is formed on the base (1). The cleats (2) are not formed on the highly flexible area (R1). One or more first cleats (21) demarcating the highly flexible area (R1) are formed directly in front of this area (R1), and one or more second cleats (22) demarcating the highly flexible area (R1) are formed directly behind the area (R1). A first width Wy1 of the highly flexible area (R1) at the first foot interphalangeal joint (J1) in the longitudinal direction Y of the foot is set in the range of 4 to 15 mm.

Description

Specification

Spike sole sonore

Technical field

[0001] The present invention relates to a spike shoe sole.

Background art

Conventionally, for spiked shoes, there has been proposed a knoor having a rigid distribution or an area that is easily bent for various purposes. Examples of such soles include the following Patent Documents 1 to 10. For Patent Documents 8 and 9, a comparison with the present invention will be described later.

Patent Document 1: JP-A-58-165802 (Fig. 1)

Patent Document 2: JP-A-60-222002 (Fig. 6)

Patent Document 3: Akira Kaikai 60-13006 (Fig. 1)

Patent Document 4: Japanese Patent Laid-Open No. 8-214910 (Abstract)

Patent Document 5: Hei Kaihei 11-89605 (Abstract)

Patent Document 6: JP 2004-167069 (Abstract)

Patent Document 7: JP 2002-248006 (Abstract)

Patent Document 8: Reality 7-36483 (Figure 1)

Patent Document 9: JP 2001-340101 (Abstract)

Patent Document 10: Patent No. 363 ⁵ 006 (Fig. 1)

Disclosure of the invention

[0003] For sports such as soccer and rugby! /, The athlete is often required to accelerate in a short time called a dash.

The present invention has been made paying attention to a powerful dash, and a main object of the invention is to provide a sole of a spike shoe that enables a more efficient dash.

Another object of the present invention is to provide a sole of a spike shoe that enables high running efficiency during constant speed running.

The invention of Nord of the present shoe is based on the following idea, and at least the front foot And a plurality of resin cleats that are integral with the base and protrude from the base toward the ground surface.

In the snow shoe shoe, the base has a high-flexion area which is inclined forward so as to include the first interphalangeal joint and incline forward as it goes to the inner side of the foot. The cleat is provided in the high bending area.

One or more first cleats defining the high-bending area are provided immediately before the high-bending area, and one or more second cleats defining the high-bending area are provided immediately after the high-bending area. It has been.

With respect to the direction extending along the long axis of the foot, the first width force S4mm to 15mm of the high bending area in the first intercostal joint is set.

A first tangent line extending linearly from an outer front end of the high-bending area toward an inner rear end and in contact with an edge of the first cleat and the second cleat; and an outer rear side of the high-bending area From both ends toward the inner front edge and the second tangent that extends linearly in contact with the edge of the first cleat and the edge of the second cleat It is inclined to. An angle formed by the first tangent and the second tangent is set to 10 ° to 30 °.

[0004] In view of the above object, the inventors of the present application first decided to evaluate the dash efficiency as follows in order to quantitatively evaluate the dash operation. Dash efficiency is an evaluation guideline for ease of dashing.

Fig. 1C is a graph showing the time series change of the floor reaction force in the propulsion direction at the dash landing on the forefoot. In the graph, the shaded area ∑Fd represents the force (impulse) of the subject kicking the ground. The larger the area ∑Fd, the easier the runner can dash (higher dash efficiency). That is, the dash efficiency was evaluated using the area ∑Fd as a parameter and the size of the area ∑Fd as a reference.

[0005] On the other hand, in order to quantitatively evaluate the running efficiency, it was decided to evaluate as follows. Running efficiency is an evaluation guideline for ease of running.

Fig. 1D shows the time series change of the floor reaction force in the propulsion direction during constant speed running landing on the buttocks. Here, the shaded area ∑Fr is necessary to maintain constant speed running. Represents kick force (impact). The smaller the area ∑Fr, the more easily the shoe can be maintained by the runner (higher driving efficiency). In other words, using the area に Fr as a parameter, the running efficiency was evaluated based on the size of the area ∑Fr.

[0006] Next, the inventor of the present application has analyzed the foot pressure distribution of the soles during dashing and constant speed running, and has analyzed the contact state of the soles by image analysis using high-speed video. The results of this analysis are described below.

As for the foot pressure distribution, it can be seen that the foot pressure is concentrated near the thumb ball during constant speed running. In contrast, during dash, the foot pressure is concentrated on the thumb ball and the first toe.

As for the ground contact state, the results shown in Fig. 1B were obtained during constant speed running, and the results shown in Fig. 1A were obtained during dash.

1A and 1B show the ground contact state when the maximum kick force is exerted by bare feet (propulsion period), and the shaded area is the ground contact area. In the following figure, arrow 9 indicates the direction of travel, arrow IN indicates the inside of the foot, and arrow OUT indicates the outside of the foot.

[0007] As described above, it can be seen that, in both the foot pressure distribution on the sole and the ground contact state, the operation is greatly different between the dash and the constant speed running.

According to the analysis of the ground contact area, when running at constant speed, as shown in FIG. 1B, the foot bends at the running flexion axis RL generally along the middle foot phalangeal joint, and the area ahead of the running flexion axis RL Ground.

On the other hand, at the time of a dash, as shown in FIG. 1A, the foot bends at a dash flexion axis DL that passes through the first toe and middle joint joint joint (the thumb ball) and is inclined with respect to the long axis Y of the foot. . In other words, the foot bends at the dash bending axis DL inclined forward (outward and forward) so that it passes through the thumb ball and goes forward as it goes to the outside, and the area ahead of the dash bending axis DL. It became a force to be grounded.

Furthermore, in order to increase the impulse ∑Fd (Fig. 1C) of the propulsive force until takeoff, the foot is bent along a line DL1 that passes through the joint between the first intercostal joint and is substantially parallel to the dash bending axis DL, It turned out that it would be preferable to have the ability to convey Dassy Yuka to the road surface until just before takeoff. [0008] Considering the results of the foot pressure distribution, it is considered that the structure of the knoll in the region from the thumb ball to the first toe at the dash is deeply related to the improvement of the dash efficiency.

Furthermore, considering the ground contact results, it is considered effective to use spikes with a sole that bends to the bending of the foot to improve the dash efficiency.

That is, it is considered effective to bend easily at the dash bending axis DL and the line DL1 in front of it. This is because the area ∑ Fd (FIG. 1C) can be easily increased if the sole can realize the flexion of the foot during the dash!

[0009] On the other hand, during constant speed running, the bending stiffness of the knoll at the running bending axis RL is increased (makes it difficult to bend), and the knoll is bent unnecessarily during running, thereby preventing running loss. Efficiency is expected to improve. That is, it is presumed that running efficiency is improved by making it difficult for the legs to bend along the running bending axis RL.

[0010] Based on strong considerations, the following experiment was conducted using commercially available soccer shoes in order to verify the improvement in dash efficiency and running efficiency. As shown in Fig. 2A

Five kinds of shoes Type I ~ V were prepared.

[0011] Type I shoes are commercially available soccer shoes, and Type II to V shoes have grooves in the Noor of Type I shoes that partially reduce the flexural rigidity of the Nol and make it easier to bend. It is.

In Type II shoes, the groove G1 substantially along the running flexion axis RL (FIG. 1B) is provided in the Knoll of the Type I shoe to reduce the bending stiffness of the Knoll at the metatarsal joint. In the Type III shoe, the groove stiffness G2 along the line DL1 (Fig. 1A) parallel to the dash bending axis DL is provided in the Knoll of the Type I shoe to reduce the bending stiffness of the Knoll in the line DL1. Is.

A Type IV shoe is a type I shoe that is provided with both of the two grooves Gl and G2.

For Type V shoes, the groove G2 extends only to the outer part of the groove G2 and the running flexion axis RL in the Nord of Type I shoes (therefore, there is a stiffness distribution in the width direction at the middle foot joint joint part). Are provided. [0012] The subjects wore these shoes Type I to V, performed dash motion and constant speed running motion, and measured the dash efficiency parameter ∑ Fd and the travel efficiency parameter ∑ Fr. Figures 2B and 2C show the results of this measurement.

[0013] As shown in FIG. 2B, it can be seen that high dash efficiency can be obtained in Type III, IV, and V in which the groove G2 is provided in the knoll (∑ Fd has increased).

For this reason, as described above, it is effective to improve the dash efficiency by reducing the bending stiffness of the knot in the line DL1 (Fig. I was able to confirm.

On the other hand, as shown in FIG. 2C, Type II and IV can be said to have low running efficiency (it is difficult to maintain speed). These shoes have a groove G1 corresponding to the running bending axis RL (FIG. 1B) in the nor. As a result, the deformation of the knoll increases during driving.

The driving efficiency decreased (∑Fr became larger).

From this, it was confirmed that increasing the bending stiffness of the knoll (making it difficult to bend) at the position of the running bending axis RL is preferable in terms of running efficiency.

[0015] Further, the inventor of the present application examined individual differences in the dash flexion axis DL by taking a video of the sole when five subjects performed the dash motion. Figures 3A to 3

E shows the contact state of the sole of each subject during the dash movement, and the shaded area is the contact area of the sole.

[0016] As shown in each figure, the long axis Y that connects the center of the heel and the tip of the second heel so that any of the dash bending axes DL is inclined forward as it goes to the inner side of the foot. Furthermore, it was found that the inclination angle Θ formed by the major axis Y and the dash bending axis DL differs from subject to subject. The inclination angle 0 is a minimum of about 45 ° and a maximum of about 70 °, and it was found that there was a variation of about 25 °.

In consideration of such measurement results, it is preferable to allow individual differences of about 25 ° in the dash bending axis DL. Since the dash bending axis DL and the line DL1 (FIG. 1A) are parallel to each other, it is easy to bend including the line DL1 (FIG. 1A)! High (low rigidity) High bending areas have different inclination angles In order to allow bending at the dash bending axis DL, It is presumed that it is preferably set in the range of about 10 ° to 30 °.

[0017] Further, from the existing foot shape data, it has been found that there is an individual difference in the position of the first intercostal joint relative to the foot length. Specifically, even among those who use shoes of the same size, there is a variation of about 5 mm in the long axis direction distance to the joint between the first toe and the first interphalangeal joint.

In consideration of the force variation, in order to allow individual differences in the position of the line DL1 (Fig. It is presumed that it is preferable to have a first width Wy 1 (Fig. 6) of about 4 mm or more in the major axis direction at the intercostal joint.

In addition, if the width Wyl of the high bending area R1 is too wide, there is a risk that the Knoll will be greatly bent at the shaft, other than the line DL1. In order to avoid this, it is presumed that the width Wy 1 is preferably set to about 15 mm or less.

[0018] It is considered that the variation in the position of the first interphalangeal joint affects the variation in the inclination angle Θ. Therefore, it is not always necessary to set the width Wyl to such a value as to completely allow the variation between the two.

A range that allows only a certain degree of variation can be a knoll suitable for the majority of people's feet. It is appropriate to set the value of the width Wyl for the viewpoint power to be applied.

[0019] The invention of the spike shoe Nord of the present invention has been made based on the above considerations. As shown in FIG. 4, a base 1 made of greaves of a sole S having at least a forefoot portion and the base 1 And a plurality of tallow 2 made of grease that protrudes from the base 1 toward the ground.

As shown in FIG. 5, the sole S includes a high flexion area R1 that includes the first interphalangeal joint J1 and is inclined so as to face forward as it goes from the inner side IN to the outer side OUT of the foot. Formed into 1! / The cleat 2 is provided in the high bending area R1.

As shown in FIG. 6, one or more first cleats 21 that partition the high bending area R1 and the tip area R2 are provided immediately before the high bending area R1. Immediately after the high-bending area R1, one or more second tartlets 22 are provided to partition the high-bending area R1 and the low-bending area R3. The high flexion area R1 of the first intercostal joint J1 The first width Wyl in the long axis Y direction of the foot is set between 4mm and 15mm.

As shown in FIG. 7, the first tangent T1 is directed toward the inner rear end 32 from the outer front end 31 of the highly bent area R1, and the outer edge 21a of the first cleat 21 and the second It extends linearly in contact with the edge 22a of the cleat 22. The second tangent line T2 is directed toward the inner front end 34 from the outer rear end 33 of the high-bending area R1, and on the inner edge 21a of the first cleat 21 and the outer edge 22a of the second cleat 22. It touches and extends straight. The first tangent line T1 and the second tangent line T2 are inclined so as to be directed forward as they go from the inner side IN to the outer side OUT of the knoll. An angle oc formed by the first tangent line T1 and the second tangent line T2 is set to 10 ° to 30 °. In FIGS. 5 to 7 and 9, the high-bending area R1 is shaded.

According to the present invention, both the first tangent line T1 and the second tangent line T2 are inclined obliquely forward as the inner IN force of the Knor also goes to the outer OUT. Therefore, between these two tangents Tl and T2,! /, The bend easily bends when dashing.

Here, since the angle α ≦ 30 ° formed by the first tangent line T1 and the second tangent line T2 and the first width Wy 1 ≦ 15 mm, the bending area in the high bending area R1 is not too wide. As a result, the bending of the knoll is regulated and the dash efficiency is improved.

When the angle oc formed by the first tangent line T1 and the second tangent line T2 exceeds 30 °, or when the first width Wyl exceeds 15 mm, it is easy to bend at a portion where no knoll is necessary. Furthermore, if the high bending area R1 is too wide, the region force for providing the cleat 2 in the tip area R2 becomes too small.

On the other hand, since the angle α≥10 ° formed by the first tangent T1 and the second tangent T2 and the first width Wy 1≥4mm, it corresponds to the difference in the foot shape of the various wearers and the bending of the foot. It is possible to bend the tip of the sole.

In the present invention, the lower limit of the angle formed by the first tangent line T1 and the second tangent line T2 is 10 °. This value is smaller than the variation in inclination angle between the major axis Y and the dash bending axis DL obtained in the measurement of the individual difference of the dash bending axis DL (FIG. 1A). Even when the lower limit of the angle is less than about 25 ° of the inclination angle variation, the knurl of the portion where the tartlet is disposed can be bent together with the cleat. The function of allowing the bend to bend can be exhibited.

[0021] In the present invention, the cleat means a height of 3 mm or more, an area of 20 mm ² or more at the base near the base 1, and a tip surface of 10 mm ² or more. A protrusion with an area.

Further, in the present invention, the high bending area R1 is an area extending in a substantially strip shape that is inclined obliquely forward as the inner IN force of the foot goes to the outer OUT, and is higher than the tip area R2 and the low bending area R3. Sonore is easy to bend!

The tip area R2 is an area in front of the high bending area R1 in the sole. The low bending area R3 refers to an area behind the high bending area R1 in the forefoot portion of the sole.

[0022] Because the cleat 2 is not arranged in the high bending area R1, the bending of the knoll becomes large. That is, the sonore is easily bent.

On the other hand, in the portion where the cleat 2 behind the high bending area R1 is disposed, the cleat 2 acts like a rib as shown in the side view of FIG. Iz gets bigger. For this reason, the bending stiffness at each cross section when bending moment M is applied in the major axis direction Y increases. That is, in the portion where the cleat 2 is disposed, there is no portion where the second moment of inertia Iz is locally small. Therefore, it becomes difficult for the Nord to bend. Since the cleat 2 is arranged in the area behind the high-bending area R1, there is no portion where the knurling is easy to bend. As a result, the bending of the nor in the high bending area R1 is promoted.

In the present invention, as shown in FIG. 5, the long axis Y is a straight virtual line connecting the center of the heel (inner side of the rib 74) and the tip of the second ridge 72. Say. The major axis Y direction refers to the direction along the major axis Y.

Unless otherwise specified, the front refers to the front in the long axis Y direction (toe side), and the rear refers to the rear in the long axis Y direction (back side).

[0024] Here, the present invention and the shoe sole disclosed in Patent Documents 8 and 9 will be compared.

As shown in FIG. 11A, in the shoe sole of Patent Document 8, T12 of two tangents Til, T12 in contact with the cleat 102 is inclined obliquely rearward as the inner force of the foot goes outward. Therefore, the bending area of the knoll extends to an unnecessary range. As a result, the sonore bends at a line other than the line DL 1 during dashing.

Further, as shown in FIG. 11B, in the shoe sole of Patent Document 9, the angle formed by the two tangents Til, T12 in contact with the cleat 102 is extremely small. Therefore, the individual difference of the dash bending axis DL is hardly allowed.

Furthermore, if it is attempted to bend the sole easily in consideration of the thickness of the knoll, a certain amount of width is required in the bent region at the bottom of the knoll. However, the shoe sole of this document has an extremely small angle formed by two tangents Til and T12. Therefore, it is considered that the sole with the narrow width of the bent region is hardly bent.

Further, in the shoe sole of this document, the dash bending axis DL traverses a hard washer 102 for screwing a land spike. Therefore, in reality, it is considered that the knoll is difficult to bend.

In the present invention, as shown in FIG. 8, the first angle β 1 outside the tip formed by the first tangent T1 and the long axis Y is set to 40 ° or more, and the second It is preferable that the second angle β 2 outside the tip formed by the tangent line Τ2 and the long axis Υ is set to 80 ° or less.

[0027] As a result of measuring the individual difference of the dash bending axis DL, the inclination angle 0 of the dash bending axis DL with respect to the major axis 0 is distributed in a range of about 45 ° to 70 °.

In consideration of measurement errors, etc., if the first angle and the second angle allow the dash bending axis DL (FIG. 1A) having an inclination angle Θ of about 40 ° to 80 °, the line DL1 (FIG. Since 1A) is parallel to the dash bending axis DL, it is estimated that individual differences in the dash bending axis DL can be sufficiently allowed in the line DL1.

[0028] It is more preferable that the first angle j81 is set to about 40 ° to 60 °, and the second angle 2 is set to about 60 ° to 80 °.

In the present invention, as shown in FIG. 7, the first tangent line T1 is in contact with the outer edge 21a of the first tartlet 21L. The second tangent line T2 is in contact with the inner edge 21a of the first cleat 21M.

The high bending area R1 is such that the second tangent line T2 passes through the edge 21a of the first cleat 21M and the first tangent line T1 is greater than the second width Wy2 in the long axis Y direction inside the foot. Tari It is preferable that the third width Wy3 in the major axis Y direction outside the foot passing through the edge 21a of the seat 21L is wide.

[0030] At the time of dashing, the foot bends along a line DL1 (FIG. 1A) parallel to the dash bending axis DL with the first intercostal joint J1 closer to the inside of the foot as a center. Therefore, the line DL1 tilts obliquely forward as it goes to the outside of the foot with the first interphalangeal joint J1 as the center. Therefore, since the high bending area R1 is wider on the outer side than the inner side of the foot, the line DL1 can be regulated according to the bending of the foot.

In the present invention, as shown in FIG. 7, the intersection TX of the first tangent line T1 and the second tangent line T2 is a region corresponding to the first ridge 71, the first ridge 71 and the second ridge 72. It is preferred to be located somewhere in the area between or the area corresponding to 2nd 72!

In this way, the width in the major axis Y direction of the high-bending area R1 at the portion from the first to 71th to the second to 72nd portions is reduced, and at the inside and outside of this portion. Long axis The width in the Y direction can be increased. For this reason, the high bending area R1 does not pass too much force. Therefore, it is possible to cope with a wide individual difference of the dash bending axis DL parallel to the line DL1.

[0032] Further, in a preferred embodiment of the present invention, as shown in FIG. 9, the first virtual line K1 divides the highly bent area R1 approximately equally in the front-rear direction and generally in line symmetry.

The second imaginary line K2 is orthogonal to the imaginary line K1, and divides the tip end area R2 in front of the high-bending area R1 approximately equally into the inside and outside. That is, the tip area R2 is divided into an inner area R21 and an outer area R20 by the second virtual line K2, and the first cleat 21 includes one or more inner first cleats 21M and one or more outer first areas. Includes one tart 21L.

The inner first cleat 21M is disposed in the inner area R21, and the outer cleat 21L is disposed in the outer area R20.

The front end 21b of the inner first cleat 21M and the front end 21b of the outer first cleat 21L are arranged at substantially the same position in the direction along the second virtual line K2. Therefore, the tip 21b of the outer first cleat 21L is located in front of the tip 21b of the inner first cleat 21M. It is arranged ahead of the long axis Y direction.

[0033] According to this aspect, the force for transmitting the runner's dash force to the road surface can be exerted immediately before takeoff. That is, at the time of a dash, it leaves from the outside force of the foot. Therefore, the outer first cleat 21L extends to the front of the knoll more than the inner first cleat 21M, so that the runner can transmit the kick force to the road surface immediately before takeoff.

In this embodiment, as shown in FIG. 9, each of the first cleats 21M, 21L has a length D1 of 10 mm to 25 mm in the direction along the second virtual line Κ2, and The tip 21b of the first cleat 21M, 21L is preferably disposed in a region within 15 mm from the sole tip St in the direction along the second virtual line K2. That is, it is preferable that the distance D2 force Sl5 mm or less along the second imaginary line K2 between the tip 21b of each of the first cleats 21M and 21L and the sole tip St is less than or equal to 5 mm.

[0035] By doing so, the first cleats 21M, 21L have a sufficient length at the tip of the sole, and the first cleats 21M, 21L are present inside and outside in front of the knoll. Sometimes a stable dash power can be obtained. The distance D2 is more preferably 10 mm or less.

The term “sole tip” refers to the front end of the Knoll in the direction along the second imaginary line, that is, the front intersection of the outer periphery of the knoll and the second imaginary line.

[0036] When kicking at the dash, the outer kick force is smaller than the inner kick force. Therefore, regarding the arrangement of the first cleat 21 in the tip area R2, the projected length of the outer first cleat 21L with respect to the first virtual line K1 (the length in the direction along the first virtual line K1) is It is preferable that the projection length of the first cleat 21M with respect to the first virtual line K1 is longer.

As a result, the grip force on the outside of the foot against the ground surface is increased, and it is possible to realize a smoother kicking out when dashing.

In order to further improve the dash efficiency, it is preferable that the height of the first cleat 21 is gradually reduced toward the tip of the knoll.

[0037] Further, in a preferred embodiment of the present invention, as shown in FIG. 7, a large number of third cleats 23 made of grease are provided behind the second cleats 22, and one or more third cleats are provided. 23 It is preferably arranged so as to intersect the above-mentioned running bending axis RL (FIG. 1B) connecting the midfoot toe joint joint 73 of the foot.

[0038] As described in the above discussion, from the viewpoint of running efficiency, the running bending axis RL (Fig. 1

In the position of B), it is preferable that the Nord becomes difficult to bend.

By providing the third cleat 23 on the running bending axis RL as in this embodiment, the third cleat 23 acts like a rib. Therefore, bending of the running bending axis RL during traveling is suppressed. As a result, traveling efficiency is improved.

[0039] In this aspect, at least one or more of the second cleats for all virtual lines crossing the forefoot part behind the highly bent area R1 in the forefoot part.

It is preferred that 22 or 3rd cleats 23 are arranged to intersect.

[0040] In this way, all the lines are connected to the rear of the high bending area R1! The bending of the knoll is suppressed by the second cleat 22 and the third cleat 23. Therefore, driving efficiency is improved.

From the viewpoint of suppressing the bending of the knoll, it is preferable that the length in the major axis Y direction of each of the third cleats 23 is larger than the width in the lateral direction perpendicular to the major axis Y direction.

Brief Description of Drawings

[0041] [Fig. 1] Fig. 1A is a bottom view showing the contact state of the sole during dash, Fig. 1B is a bottom view showing the contact state of the sole during constant speed running, and Fig. 1C is the floor reaction force during the dash. Fig. 1D is a characteristic diagram showing the time series change in floor reaction force during constant speed running.

[FIG. 2] FIG. 2A is a bottom view showing a shoe used for an experiment for verifying improvement in dash efficiency and running efficiency, and FIGS. 2B and 2C are graphs showing the results of the experiment, respectively.

3] FIG. 3A, FIG. 3B, FIG. 3C, FIG. 3D and FIG. 3E are bottom views of the soles showing individual differences in the dash flexion axis.

FIG. 4 is a perspective view showing a shoe of an example of the present invention.

FIG. 5 is a bottom view of the Nord with the foot bones superimposed.

FIG. 6 is a partial bottom view of the Nord with the foot bones superimposed.

FIG. 7 is a partial bottom view of the Nord with the foot bones superimposed.

FIG. 8 is a partial bottom view of the knoll. FIG. 9 is a partial bottom view of the knoll.

FIG. 10 is a partial longitudinal sectional view of a knoll.

11] FIG. 11A and FIG. 11B are bottom views of a conventional example, respectively.

1: Base

2: Cleat

21: 1st cleat

21M: 1st cleat inside

21L: First outer cleat

21a: Edge

21b: Tip

22: Second cleat

22a: Edge

22b: Horizontal portion

23: 3rd cleat

41: Front boundary line

42: Rear boundary line

73: Metatarsophalangeal joint

T1: First tangent

T2: Second tangent

TX: intersection of first tangent and second tangent

Y: Long axis

DL: Dash bending axis

RL: Running bending axis

K1: First virtual line

K2: Second virtual line

S: Sole

St: Sole tip Rl: High bending area

R2: Tip area

R21: Inner area

R20: Outside area

R3: Low bending area

Wyl: Longitudinal first width

Wy2: Second width in the major axis direction

Wy3: Third width in the major axis direction

J1: First interphalangeal joint

IN: Inside

OUT: Outside

BEST MODE FOR CARRYING OUT THE INVENTION

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

As shown in FIG. 4, the sole S of the spike shoe of the present embodiment has a base 1 made of resin, and a plurality of resin made of resin that is integral with the base 1 and protrudes from the base 1 toward the ground. With 2 cleats. An upper U is placed above the sole S!

[0044] As shown in FIG. 6, the forefoot portion of the sole S passes through the first interphalangeal joint J1 and is inclined obliquely forward as it goes to the outside of the foot. An area R1, a tip area R2 in front of the high bending area R1, and a low bending area R3 in the rear of the high bending area are provided.

The high bending area R1 is not provided with the cleat 2, and is made of a softer material than the tip area R2 and the low bending area R3. As a result, the high bending area R1 is more easily bent than the tip area R2 and the low bending area R3.

On the other hand, a plurality of first cleats 21 are provided in the distal end area R2, and a plurality of second cleats 22 are provided in the low-bending area R3. A plurality of third cleats 23 are provided behind the second cleats 22.

[0045] It should be noted that the foot pressure in the vicinity of the thumb ball is not limited even when there is a deviation during constant speed running and dash. Is big. Therefore, as shown in FIG. 5, one of the cleats 2 is arranged in the vicinity immediately below the thumb ball 71a, and a plurality of cleats 2 are arranged so as to surround the thumb ball 71a. Is preferred.

[0046] A front boundary line 41 (FIG. 6) between the high bending area R1 and the tip area R2 and a rear boundary line 42 (FIG. 6) between the high bending area R1 and the low bending area R3. ) Consists of multiple line markers. That is, the lines connecting the first to fourth tangents T1 to T4 described below constitute boundary lines 41 and 42 before and after partitioning the area.

[0047] As shown in FIG. 7, the first tangent line T1 is directed toward the inner rear end 32 from the outer front end 31 of the high-bending area R1, and the edge 21a of the outer first cleat 21L and the inner first end 2 cleats

This is a tangent that extends linearly in contact with the edge 22a of 22.

The second tangent line T2 is a straight line from the outer rear end 33 to the inner front end 34 of the highly bent area R1, and in contact with the edge 21a of the inner first cleat 21M and the edge 22a of the outer second cleat 22. It is a tangent extending in a shape.

[0048] As shown in FIG. 8, the third tangent T3 does not intersect all the first cleats 21, and also has one or more tangential forces that contact the first cleat 21 at a plurality of points. The third tangent line T3 divides the highly bent area R1 and the tip area R2 in the central portion inside and outside the foot. The fourth tangent line T4 does not intersect all the second cleats 22, and also has one or more tangential forces that contact the second tartlets 22 at a plurality of points. The fourth tangent line T4 divides the high bending area R1 and the low bending area R3 at the central portion inside and outside the foot.

In this embodiment, the third tangent line T3 and the fourth tangent line T4 are each one force. Depending on the arrangement of the first cleat and the second cleat, there may be two or more.

[0049] As shown in Fig. 8, the front boundary line 41 (Fig. 6) includes a first tangent line Tl, a third tangent line at the edge 21a of the outer first cleat 21L and the edge 21a of the inner first cleat 21M. The tangent line 3 and the second tangent line 2 are smoothly connected.

On the other hand, as shown in FIG. 8, the rear boundary line 42 (FIG. 6) is connected to the outer second cleat 22.

The second tangent line T2, the fourth tangent line Τ4, and the first tangent line T1 are smoothly connected at the edge 21a of L and the edge 22a of the inner second cleat 22Μ.

[0051] Each of the second cleats 22L, 22Μ in the low bending area R3 is long in the long axis Υ direction. It has a vertically long portion 22c and a horizontally long portion 22b that is long right and left along the rear boundary line 42 immediately after the high bending area R1. As a result, the second cleats 22L and 22M are formed in a substantially L shape.

The laterally long portion 22b is formed so as to be inclined in a substantially oblique lateral direction along the rear boundary line 42, that is, toward the front as approaching the outside. The laterally long portion 22b may be formed along a lateral direction perpendicular to the longitudinal axis Y.

By providing the horizontally long portion 22b, it becomes difficult to bend immediately after the high bending area R1, and stress concentrates on the high bending area R1. Therefore, the bending of the saw in the high bending area R1 is promoted. As a result, the dash efficiency is improved.

[0052] As described above, the preferred embodiments have been described with reference to the drawings. However, those skilled in the art will readily consider various changes and modifications within the obvious range by looking at the present specification. Let's go. For example, the high-bending area may be formed by cutting the end portion or by forming a bending groove to reduce the rigidity of the knoll.

In addition, the planar shape of the cleat is not limited to a rhombus or L shape, and may be a circle or an ellipse, for example.

Also, it is not always necessary to have more than one first and second cleats.

Accordingly, such changes and modifications are to be construed as within the scope of the invention as defined by the appended claims.

Industrial applicability

[0053] The present invention can be applied to spiked shoes used in sports such as soccer and rugby.

Claims

The scope of the claims

[1] A sonosole of Snowy Use comprising a base made of a resin of at least having a forefoot portion and a plurality of cleats made of resin, which are integral with the base and protrude toward the ground. On the other hand,

A high flexion area is formed in the base that includes the first intercostal joint and is inclined so that the inner force of the foot goes outward as it goes outward,

The cleat is not provided in the high bend area, and one or more first cleats defining the high bend area are provided immediately before the high bend area, immediately after the high bend area. One or more second cleats defining the high bending area are provided on the side, and the first width of the high bending area in the first intercostal joint in the direction extending along the long axis of the foot Force S4mm ~ 15mm is set,

A first tangent line extending linearly from an outer front end of the high-bending area toward an inner rear end and in contact with an edge of the first cleat and the second cleat; and an outer rear side of the high-bending area From both ends toward the inner front edge and with the second tangent extending linearly in contact with the edge of the first cleat and the edge of the second cleat Is inclined so that

A spike shoe sonore in which an angle formed by the first tangent and the second tangent is set to 10 ° to 30 °.

[2] The front end side defined in claim 1, wherein the first angle formed by the first tangent and the long axis is set to 40 ° or more, and the second tangent and the long axis are formed. A spike shoe knoll with a second angle of less than 80 °.

[3] In Claim 1, the first tangent line is in contact with the edge at the outer rear end of the first cleat,

The second tangent line touches the edge at the inner rear end of the first cleat;

The high bending area has a spike width larger in a third width in the major axis direction passing through the outer rear end of the first cleat than in a second width in the major axis direction passing through the inner rear end of the first cleat. Sonore.

[4] The first virtual line according to claim 1, wherein the high-bending area is divided approximately evenly in the front-rear direction. And an inner area and an outer area, which are divided inward and outward by a second imaginary line that divides the front end area of the knoll in front of the high-bending area substantially equally into the inside and outside,

The first cleat includes one or more inner first cleats and one or more outer first cleats;

The inner first cleat is disposed in the inner area and the outer first cleat is disposed in the outer area;

The tip of the inner first cleat and the tip of the outer first cleat are arranged at substantially the same position in the direction along the second imaginary line,

In this arrangement, the tip of the outer first cleat is disposed in front of the tip of the inner first tart in the front of the long axis direction.

[5] In claim 4, each of the first cleats has a length of 10 mm to 25 mm in a direction along the second imaginary line, and a tip of each of the first cleats 2A spike shoe knoll placed in an area within 15mm along the imaginary line.

[6] In Claim 1, a number of third cleats made of grease are provided behind the second cleat.

A spike shoe knoll, wherein one or more of the third cleats are arranged so as to intersect a running flexion axis connecting the midfoot-foot joints of the foot.

[7] In Claim 6, at least one of the second cleat or the third cleat is at least one of all the lines crossing the forefoot part behind the highly bent area in the forefoot part. Snow shoes are arranged so as to intersect.

[8] In Claim 1, the intersection of the first tangent line and the second tangent line is any one of a region corresponding to the first ridge, a region between the first ridge and the second ridge, or a region corresponding to the second ridge. A squirrel shoe knoll located in the crab.

[9] In Claim 1, the second cleat has a laterally elongated portion extending along a rear boundary line that divides the high-bending area and the low-bending area behind it immediately after the high-bending area. Having spike shoes