JP2018007701A - Golf shoe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a golf shoe that can stabilize golf swing on a slope.SOLUTION: The golf shoe includes: a first spike group G1 which has a first spike 11 having a center 11C in the inner foot section 21 of a first area A1 that is 50% of the front half part of an outsole body relative to the entire length 100% of the outsole body, and a first spike having a center in the outer foot section 20; a second spike group G2 which has a second spike 12 having a center 12C in the inner foot section of a second area A2 that is 25% of the rear end part of the outsole body relative to the entire length 100%, and a second spike having a center in the outer foot section; and a third spike group G3 which has a third spike 13 having a center 13C in the outsole section of a third area A3 between the first area and the second area and which belongs in a larger part to the outsole section of the third area. The position of the center GC of the third spike group is set in a fourth area A4 that is 30-45% from the rear end 2R of the sole body relative to the entire length 100%.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a golf shoe having a heel.

  The bag is attached to the outsole body of the golf shoe. Recently, most of the kites can be replaced.

  On the other hand, golf courses have many slopes. Therefore, it is considered that the score can be greatly extended by stabilizing the swing on the slope. However, golf shoes that aim to stabilize the swing on the slope with the grip force of the heel have not been developed yet. (Patent Documents 1 to 7).

JP3031627U (front page) JP 2006-68394 A (paragraph 0022, FIG. 2) JP60-109404U JP2002-177002A (FIG. 3) JP2012-236026A JP2001-224404A (paragraph 0023) JP3021472U (front page)

  The golf shoe of Patent Document 1 is provided with a non-slip portion integrated with a sole body at a step portion. However, it is difficult to expect a gripping force to engage the grass of the golf course with the non-slip portion provided on the stepped portion that has been retracted upward in an arch shape. Further, the non-slip portion integrated with the sole body cannot be expected to have a large grip force like a heel having an undercut with respect to the outsole body.

  The golf shoe of Patent Document 2 is provided with a plurality of curved ridges on the overhanging portion of the outer leg of the middle leg part. The invention of this Patent Document 2 aims to smooth the movement of the body weight at the time of swing by the curved protrusion. Providing a ridge at the portion where the protrusion is provided is not disclosed in Patent Document 2 and is contrary to the technical idea of Patent Document 2.

  In the golf shoes of Patent Documents 4 and 5, the bottom surface of the portion is not retracted and is retracted upward. Therefore, the grip force is not exhibited in the area where the outer foot is not stepped on.

Patent document 6 aims at "the center part outside (outer leg) outsole firmly grips the ground during a follow-through of a swing." However, it does not disclose anything about placing the heel in the region of the outside (outer leg).

Patent Document 7 discloses a shoe sole of a golf shoe that is easy to walk on a slope. However, the document does not disclose any swing on the slope.

An object of the present invention is to provide a golf shoe capable of stabilizing a golf swing on an inclined ground.

  Prior to the description of the configuration of the present invention, the tests conducted by the inventors and the principle of the present invention will be described.

  10A and 10B show the movement of the load center of the left foot during a swing. FIG. 10A shows that when swinging with the tiptoe raised on an inclined ground, and FIG. 10B shows that when swinging on a flat ground.

The swing motion was classified into three sections: back swing BS, down swing DS, and follow-through FT after impact, and the amount of movement of the load center of the left foot was compared. As a result, it can be seen that the movement in the follow-through FT section is steep and unstable. For example, in the present verification test, the center moved greatly in the same manner as in the flat ground, although the follow-through FT time was shortened to about half on an inclined ground. In addition, it was discovered that in an inclined swing motion, not only the tip of the toe is raised but also the condition of the tip of the toe being lowered, the load fluctuation after impact is large and the operation becomes unstable.

  FIG. 11 shows the foot pressure distribution at the time of impact in shades of gray. The dark gray part has a high foot pressure, while the light gray part has a low foot pressure.

  In FIG. 11, the foot pressure of the left foot Left is large on both the slope and the flat ground, and the foot pressure of the left foot Left is particularly large on the slope.

    In FIG. 11, it can be seen that on a flat ground, the foot pressure of the left foot Left is from the toe to the heel, and the load is dispersed on the inside and outside of the left foot to support the weight over a wide area.

  On the other hand, it can be seen that a large load is applied to the heel of the left foot Left on an inclined ground, and the loads on the toe of the left foot and the inner foot are smaller than on a flat ground. In particular, it can be seen that on a flat ground, a large load is generated on an inclined ground slightly in front of the outer foot of the left foot heel where no load is applied, that is, on the stepped portion of the outer foot of the left foot.

  From the measurement result of such foot pressure distribution, it is considered that the golf swing on the sloping ground can be stabilized by suppressing the heel of the left foot from inadvertently moving or falling down during the swing.

The golf shoe of the present invention is a golf shoe in which a heel is attached to the outsole body 2,
The center 11C is formed on the first heel 11 and the outer foot 20 having the center 11C on the inner foot 21 in the first area A1 of 50% of the front half of the outsole body 2 with respect to 100% of the overall length of the outsole body 2. A first rod group G1 including a first rod 11 having,
A second heel 12 having a center 12C in the inner foot portion 21 of the second area A2 of 25% of the rear end portion of the outsole body 2 with respect to the overall length 100% and a second heel having a center 12C in the outer foot portion 20. A second eyelid group G2 including 12;
A third area A3 between the first area A1 and the second area A2 has a center 13C in the outer foot portion 20 of the third area A3, and includes a third ridge 13 to which most of the outer foot portion 20 of the third area A3 belongs. With a 3 鋲 group G3,
The position of the center GC of the third collar group G3 is set to a fourth area A4 of 30 to 45% from the rear end 2R of the sole body 2 with respect to the total length of 100%.

  In the present invention, the third rod 13 is disposed on the outer foot portion 20 of the third area A3. The third rod 13 is entangled with the leaves and roots of the turf by a load applied immediately before the outer foot of the rod or the rod on the slope. Therefore, it exhibits a grip function that suppresses displacement of the left foot that is loaded on the heel or the like.

The heel attached to the outsole body can realize a plate-like or plate-like structure that is undercut with respect to the outsole body, buried in the turf of the golf course, and entangled with grass leaves and roots Easy to do. Therefore, the grip by the replaceable scissors is easier to engage with the grass leaves and roots than the non-slip portion such as cleat molded integrally with the outsole body, and the function of preventing the deviation is high.

A load on the outer leg of the third area slightly ahead of the heel prevents the foot from rotating inadvertently around the heel.

Therefore, the swing on the slope is stabilized.

In particular, the position of the center GC of the third eyelid group G3 is set to a fourth area A4 of 30 to 45% from the rear end. Therefore, there is no possibility that the entire third eyelid group G3 is too close to the front first area A1 or too close to the rear second area A2. Therefore, the heel is evenly arranged from the first ridge 11 at the rear end of the first area A1 to the second ridge 12 at the front end of the second area A2, and the stability of the swing is easily exhibited.

Here, the majority means 70% or more, and preferably 80% or more. Therefore, “the majority belongs to the outer foot portion 20 of the third area A3” means the planar projection area of the third heel. It means that 80% or more belongs to the outer foot portion 20 of the third area A3. In these cases, generally, all of the mounted portions of the third heel mounted on the outsole body will belong to the outer foot portion 20 of the third area A3.

The center of the third eyelid group means the center of the third eyelid, for example, when the third eyelid group is formed by a single third eyelid, while, for example, the third eyelid is formed by two third eyelets. When a group is formed, it means the midpoint of the line segment connecting the centers of both third ridges.

The inner side is generally referred to as the inner side or the inner side of the foot. The lateral foot is generally referred to as the outside or the outside of the foot.

It is a bottom view which shows the sole concerning Example 1 of this invention with a digital photograph. It is a side view of the same outer leg of a golf shoe. It is a side view of the same inner leg. It is the same rear view. It is the same perspective view seen from the sole side. In FIG. 5, the surface of the cleat on the ground side (ground surface) is given a dot pattern. It is the expansion same perspective view of a collar and a mounting part. It is a bottom view of a sole main body. It is a bottom view of the sole main body concerning Example 2. FIG. It is a perspective view which shows the sole concerning Example 2 with a digital photograph. It is a characteristic view which shows the movement of the load center at the time of a swing. It is a top view which shows foot pressure distribution at the time of impact. It is a figure which shows the comparison of grip performance. It is a figure which shows the comparison of the stable performance in an inclined land. It is a figure which shows the relationship between a flare structure and stable performance.

Preferably, a first of the first heel 11 and the third heel 13 adjacent to the first heel 11, the rearmost of the outer foot 20 of the outsole body 2 in the first heel 11. Pitch P1 of
The second pitch between the second rod 12 disposed in front of the outer foot 20 of the outsole body 2 in the second rod 12 and the third rod 13 adjacent to the second rod 12. P2 satisfies the following expression (1).
0.7 * P2 ≦ P1 ≦ 1.3 * P2 (1)

In this case, the first pitch and the second pitch are approximate values. Therefore, there is no possibility that the third rod is too close to the front first rod and the rear second rod. Therefore, the first to third rods are evenly arranged, and it is easy to stably exhibit the grip function and the shift prevention function on the slope. As a result, further stability of the swing on the slope can be expected.

If the first pitch P1 is smaller than 0.7 times the second pitch P2, the third kite is too close to the front first kite and too far from the rear second kite. On the other hand, if the first pitch P1 is larger than 1.3 times the second pitch P2, the third rod is too far from the first rod and the second rod is too close.

From such a viewpoint, it is more preferable to satisfy the following expression (11).
0.8 * P2 ≦ P1 ≦ 1.2 * P2 (11)

Preferably, the height position of the third rod 13 is equal to the height position of the first and second rods 11 and 12.

  In this case, there is no possibility that the third rod is largely retracted upward or protrudes downward relative to the first and second rods. Therefore, the third eyelids will stably engage the grass and roots when swinging on slopes.

  From this point of view, the equivalent is preferably within a range of about ± 2 mm. Further, from the viewpoint of the hook engagement function, the height position of the hook may be, for example, the height position of the lowest end of the hook (the end that protrudes most toward the ground). The height position of the lowermost end is generally easy to measure.

  Preferably, the number of heels arranged on the outer foot portion 20 in the second and third areas A2, A3 is larger than the number of heels arranged on the inner foot portion 21 in the second and third areas A2, A3. Many.

  Such an arrangement can prevent the number of wrinkles from increasing unnecessarily. The reason is that, as can be seen from the foot pressure distribution of the left foot Left on the slope in FIG. 11, the foot pressure of the inner foot is significantly smaller than the outer foot in the portion corresponding to the third area.

  For these reasons, more preferably, no heel is disposed on the inner foot portion 21 of the third area A3.

  Preferably, the number of the first heels 11 disposed on the outer foot portion 20 of the first area A1 is smaller than the number of the first heels 11 disposed on the inner foot portion 21 of the first area A1.

Such an arrangement helps reduce the number of heels and helps to balance the number of heels on the inner and outer feet.
Compared to the foot pressure distribution of the left foot Left in the flat area of FIG. 11, the foot pressure distribution of the left foot Left in the sloping ground has a small foot pressure in the first half of the foot, and in particular, the tip portion of the outer foot portion of the left foot Left is extremely small. Therefore, it is more preferable that the tip portion of the sole is provided with a heel only on the inner foot without providing a heel on the outer foot.

  As can be seen from FIG. 11, the foot pressure distributions of the left foot Left and the right foot Right are greatly different. Therefore, the arrangement of the heel and the structure and shape of the outsole body according to the present invention are employed only for the left foot, for example, and may be different for the left foot and the right foot.

Preferably, the heel is a replaceable heel with respect to the outsole body 2.

If the bag is replaceable, the advantages as described above are obtained.

Preferably, the outer leg portion 20 of the outsole body 2 has an overhanging portion 29 protruding outward from the upper 3 in at least the second area A2.

By projecting the overhanging portion 29 in the outer leg portion of the second area, it is possible to suppress the heel from falling due to a large load generated during the swing. Therefore, stability is improved.

More preferably, the inner foot portion 21 of the outsole body 2 has another overhanging portion 29 projecting outward from the upper 3 in the second area A2.

In this case, the stability is further improved.

Preferably, cleats 4 formed integrally with the outsole body 2 and projecting toward the ground are provided on the outer legs 20 of the first, second and third areas A1 to A3, respectively.

Cleats provided on the outer legs of the first to third areas support a large load generated during swing. In particular, when the overhanging portion 29 is provided on the outer foot portion of the second and / or third area, the cleat can suppress the fall of the heel as shown by the angle θ in FIG.

More preferably, the height position of the ground contact surface 4F of the cleat 4 of the outer foot 20 in the third area A3 is the height of the ground contact surface 4F of the cleat 4 of the outer foot 20 in the first and second areas A1 and A2. It is equivalent to the position.

In this case, the ground contact surface of the outer leg cleat will contact the surface of the turf not only in the first and second areas but also in the third area. Therefore, the cleats of the outer legs are in contact with the surface of the turf when swinging on a sloping ground. As a result, the effect of suppressing the falling of the heel increases.

From this viewpoint, the equivalent is preferably within about ± 2 mm.

Preferably, the hook protrudes toward the ground rather than the ground contact surface 4F of the cleat 4.

  The hook engagement function is exhibited by the protrusion protruding further downward than the cleat protruding toward the ground below.

Features described and / or illustrated in connection with one such embodiment or each of the following examples may be in the same or similar form in one or more other embodiments or other examples, and / or It can be utilized in combination with or instead of the features of other embodiments or examples.

The invention will be more clearly understood from the following description of preferred embodiments with reference to the accompanying drawings, in which: However, the examples and drawings are for illustration and description only and should not be used to define the scope of the present invention. The scope of the present invention is defined only by the claims. In the accompanying drawings, the same part numbers in a plurality of drawings indicate the same or corresponding parts.

Embodiments of the present invention will be described below with reference to the drawings.
The following example shows a golf shoe for the left foot.

1 to 7 show a first embodiment.
As shown in FIG. 5, the sole includes an outsole body 2 and a resin midsole 5. An upper 6 that wraps the instep is provided on the sole (below in the drawing).

  The midsole 5 is made of, for example, a resin foam. “Resin” means having a resin component such as thermoplasticity.

  The outsole body 2 is a grounded bottom having a larger wear-resistant bond than the foam of the midsole 5, and generally has a higher hardness than the foam of the midsole 5. The outsole body 2 may be a urethane resin.

  The outsole body 2 is provided with first to third studs 11 to 13. Hereinafter, the structure and arrangement of the bag will be described. The structures of the ridges 11 to 13 are the same as each other. Hereinafter, the third ridge 13 will be described as an example.

As clearly shown in FIG. 6, the flange 13 is a part integrally including a mounted portion 15, a tool locking portion 17, several engaging protrusions 16, and the like. The hook engagement protrusion 16 protrudes downward (upward on the paper surface) from the outsole body 2 and is buried in the grass of the golf course and engages with the leaves and roots of the grass.

The engaging protrusion 16 protrudes in the radial direction from the mounted portion 15 and constitutes a portion that is undercut with respect to the outsole body 2. The shape of the engaging protrusion 16 may extend in a radial shape (FIG. 1) or a spiral shape (FIG. 9) and may be formed in a rod shape or a plate shape.

Each kite is a replaceable kite. That is, the to-be-attached portion 15 of the heel is detachably attached to the attachment portion 25 of the outsole body 2. A dedicated tool (not shown) is locked to the tool locking portion 17 of the heel and the heel is rotated to be mounted on the mounting portion 25 or removed from the mounting portion 25 so that the heel can be replaced.

The mounting portion 25 of the outsole body 2 may be integrated with the outsole body 2 at the time of molding. Further, the mounted portion 15 and the engagement protrusion 16 of each ridge may be integrally formed with each other at the time of molding. Further, the heel may be molded into the outsole body 2 by being attached to the cavity of the outsole body 2 at the time of molding.

Next, the arrangement of the first to third rods 11 to 13 in FIG. 1 will be described.
In FIG. 1, the 1st-3rd collars 11-13 comprise the 1st-3rd collar group G1-G3, respectively. The first to third eyelid groups G1 to G3 are respectively disposed in first to third areas A1 to A3 described below.

The first area A1 is a 50% area that is the front half of the outsole body 2 with respect to 100% of the overall length of the outsole body 2. The first heel 11 has a center 11C on the inner foot portion 21 or the outer foot portion 20 of the first area A1. In the case of this example, a plurality of first heels 11 are provided on the inner foot portion 21 and the outer foot portion 20 of the first area A1.

The second area A2 is an area of 25% which is the rear end portion of the sole body 2 with respect to the total length of 100%. The second heel 12 has a center 12C on the inner foot portion 21 or the outer foot portion 20 of the second area A2. In the case of this example, one second heel 12 is provided on each of the inner foot portion 21 and the outer foot portion 20 in the second area A2.

The third area A3 is an area between the first area A1 and the second area A2. The third rod 13 has a center 13C in the outer leg portion 20 of the third area A3, and the majority belongs to the outer leg portion 20 of the third area A3. In the case of this example, two third rods 13 are provided on the outer foot portion 20 of the third area A3.

The centers 11C to 13C of the heels in FIG. 1 are located at the same positions as the centers 11C to 13C of the mounting portion 25 of the outsole body 2 from which the heels are removed as shown in FIG.

In FIG. 1, the total length of the sole may be, for example, a length from a front end 2F to a rear end 2R of a virtual line CL called a shoe center. The inner foot portion 21 and the outer foot portion 20 may be, for example, portions that are roughly equally divided on the inner side and the outer side of the foot on a virtual partition line VL.

The third area A3 includes a fourth area A4. In the fourth area A4, the center GC of the third kite group G3 is arranged. The fourth area A4 is an area of 30 to 45% from the rear end 2R of the sole body 2 with respect to the total length of 100%.
The center GC of the third rod group G3 is a midpoint of a virtual line segment that connects the centers 13C of the two third rods 13.

The first pitch P1 and the second pitch P2 shown in FIG. 1 may be set so as to satisfy the following expression (1).
0.7 * P2 ≦ P1 ≦ 1.3 * P2 (1)

However,
1st pitch P1: The distance of the 1st collar 11 and the 3rd collar 13 adjacent to the said 1st collar 11 which are arrange | positioned most behind the outer leg part 20 of the said sole main body 2 among the said 1st collars 11. Second pitch P2: distance between the second heel 12 of the outer foot 20 and the third heel 13 adjacent to the second heel 12

  Here, the distance between the heels means the distance between the center of one heel and the center of the next heel. That is, the pitch means the distance between the centers of the ridges adjacent to each other.

In the case of this example, the pitch P3 between the two third rods 13 and 13 may be set so as to satisfy both of the following expressions (2) and (3).
0.7 * P1 ≦ P3 ≦ 1.3 * P1 (2)
0.7 * P2 ≦ P3 ≦ 1.3 * P2 (3)

  In this case, the four heels of the first heel 11, the third heel 13, 13 and the second heel 12 are arranged approximately evenly from the rear end of the front foot portion to the rear foot portion in the outer foot portion 20. Further, these four heels are arranged in a line along the side edge of the outer foot portion 20 of the outsole body 2.

The arrangement is more preferable when the following expressions (11) to (13) are satisfied than the expressions (1) to (3).
0.8 * P2 ≦ P1 ≦ 1.2 * P2 (11)
0.8 * P1 ≦ P3 ≦ 1.2 * P1 (12)
0.8 * P2 ≦ P3 ≦ 1.2 * P2 (13)

  As shown in FIG. 2, the four ridges 11, 12, 13 are arranged at substantially the same height. That is, in the outer foot portion 20, the lowermost ends 11E, 12E, and 13E of the first heel 11, the third heel 13, and the second heel 12 at the rearmost ends are equivalent to each other as shown by the two-dot chain line. Placed in position.

As shown in FIG. 1, in the case of the present embodiment, the number of heels arranged on the outer foot portion 20 in the second and third areas A2 and A3 is the inner foot in the second and third areas A2 and A3. The total number of ridges arranged in the section 21 is greater than one.
In this example, no heel is disposed on the inner foot portion 21 of the third area A3, but one or more heels may be disposed.
In the case of this example, the total number of the first heels 11 arranged on the outer foot portion 20 of the first area A1 is two, and the first heels arranged on the inner foot portion 21 of the first area A1. The total number of 11 is less than 3.

Next, the flare structure shown in FIG. 4 will be described.
In FIG. 4, the outer leg portion 20 of the outsole body 2 has an overhanging portion 29 that protrudes outward from the upper 3 in both the second and third areas A2 and A3 (FIG. 1). The overhanging portion 29 forms a flare structure, and may be provided over the entire outer foot portion 20 of the second and third areas A2 and A3 (FIG. 1).

  The inner foot portion 21 of the outsole body 2 has another overhanging portion 29 that protrudes outward from the upper 3 in the second area A2. As shown in FIGS. 2 and 3, the outsole body 2 may have another projecting portion 29 projecting rearward at the rear end of the rear foot portion.

Next, the cleat 4 having a dot pattern on the ground contact surface 4F in FIG. 5 will be described.
The cleat 4 is integrally formed with the outsole body 2 and protrudes downward (upward on the paper surface). The cleat 4 is provided on the outer foot 20 of each of the first, second and third areas A1 to A3.

  In the outer foot portion 20 of the third area A3 of FIG. 1, the height position of the ground contact surface 4F of the cleat 4 of FIG. 2 is the cleat 4 on the rear end side of the outer foot portion 20 (FIG. 1) of the first area A1. Is equal to the height position of the ground contact surface 4F of the cleat 4 on the front end side of the outer foot portion 20 (FIG. 1) of the second area A2.

In FIG. 5, the cleat 4 of the outer foot portion 20 is between the first rod 11 and the third rod 13, between the third rod 13 and the third rod 13, and between the third rod 13 and the second rod 13. It is arrange | positioned between the coffins 12. That is, it arrange | positions from the rear-end part of 1st area A1 of FIG. 1 to the front-end part of 3rd area A3.

  A plurality of cleats 4 are arranged around the periphery of the third rod 13 in FIG. Accordingly, as shown in FIG. 2, the third rod 13 protrudes further downward than the cleat 4 protruding toward the ground below.

  On the other hand, the high cleat 4 is not essentially provided on the inner foot portion 21 of the third area A3 of the outsole body 2 in FIG.

  In the case of this example, the cleat 4 in the third area A3 in FIG. 1 is formed by a ridge extending in the width direction substantially orthogonal to the shoe center CL. The cleat 4 of the ridge extends from the outer edge of the outer foot 20 in the third area A3 to the inner foot 21. Accordingly, the cleat 4 in the third area A3 is provided over a wider width than the outer foot portion 20 in the third area A3, and has a large ground contact area shown by the dot pattern of FIG.

  In the outer foot portion 20 of FIG. 5, a part of the ground contact surface 4 </ b> F of the cleat 4 is provided on the overhang portion 29 that protrudes from the upper 3 (FIG. 4). The grounding surface 4F is the most protruding surface of the cleat 4 and means a surface with a dot pattern in FIG.

8 and 9 show a second embodiment.
In the second embodiment, in the third area A3 in FIG. 8, only one third bar 13 is provided on the outer foot 20 in FIG. In this case, the position of the center 13C of the third rod 13 in FIG. 8 and the position of the center GC of the third rod group G3 coincide with each other. Accordingly, the center 13C of the mounted portion 15 of the third rod 13 of FIG. 9 is disposed in the fourth area A4 of FIG.

  In FIG. 8, in the case of this example, an overhang portion 29 constituting a flare structure is provided in a part of the outer foot portion 20 of the third area A3. In the case of this example, the cleats of the areas A1 to A4 including the third area A3 are provided in a part of the outer foot 20 in the width direction.

  Next, in order to clarify the effects of the present invention, test examples and comparative examples will be described. The following tests were performed on an artificial turf with a 5 degree inclined surface.

First, as in Example 1 shown in FIGS. 1 to 7, golf shoes having two third rods 13 in the third area A3 were prepared as Test Example 2 studs. On the other hand, a commercially available golf shoe not having the third rod 13 in the third area A3 was prepared as a comparative example none. About these test example 2studs and comparative example none, the grip performance by the presence or absence of the 3rd collar 13 of the said 3rd area A3 was compared.

This comparison was performed by calculating the coefficient of friction immediately before the impact on the inclined surface for each example. As shown in FIG. 12A, the friction coefficient was calculated by the ratio of the force in the horizontal direction to the vertical load. The result is shown in FIG. In Test Example 2 studs, it was confirmed that the friction coefficient was larger than that of the conventional comparative example none.

Such an increase in the friction coefficient can be expected to generate a large frictional force, that is, a drag against slip, coupled with a large vertical load generated immediately before the outer foot of the left foot left heel on the slope of FIG. As a result, an improvement in grip performance can be expected.

In general, natural turf has a softer surface than artificial turf, so it is easier for moths to enter. In addition, unlike artificial turf, natural turf has roots, so it can be expected that moths will be involved not only in the turf but also in the roots. For this reason, it can be expected that the improvement in grip performance by the second rod 13 will be greater than when measured on artificial grass.

Next, a test was performed for changes in the tilt angle θ of the heel shown in FIG.

As in Example 2 in FIG. 8, a golf shoe having a projecting portion 29 in the third area A3, one third rod 13 in FIG. 9, and the cleat 4 was prepared as Test Example ex. On the other hand, a commercially available product having no overhang and no third flange in the third area was compared with a comparative example comp. Prepared as.

These test examples ex and comparative examples comp. The angle of inclination θ of the wrinkles before and after impact was measured. The measurement results are shown in FIG. As can be seen from FIGS. 13B and 13C, the comparative example comp. Is performed from 0.1 seconds before the moment of impact until 0.3 seconds later. It can be seen that the test example ex shows a smaller change in the tilt angle θ of the heel.

Since the tilt angle θ is small, it is understood that the stability of the second embodiment is improved. Such an improvement in stability is because the overhanging portion 29 in FIG. 9 and the grounding of the cleat 4 can support a large load generated slightly forward of the left foot left foot and the heel outer foot on the sloping ground in FIG. Conceivable.

Next, a test was performed on the relationship between the tilt angle θ of the heel shown in FIG. 14 and the portion provided with the flare structure (the overhang portion 29).

Four pairs of golf shoes of Example 1 shown in FIGS. 1 to 7 were prepared, and the overhang portions 29 were partially cut off for some shoes.
The sample A in FIG. 14 was not scraped at all, and all the overhang portions 29 were left as indicated by the thick lines.
In the sample B of FIG. 14, the overhang portion 29 in the rear foot area was scraped off, and the overhang portion 29 in the midfoot area was left.
In Sample C of FIG. 14, the overhang portion 29 in the midfoot area was scraped off, and the overhang portion 29 in the foot area was left after cutting.
In Sample D of FIG. 14, all the overhang portions 29 were cut off.

  For these samples A to D, the tilt angle θ of the heel of the left foot at the time of impact was measured. The results are shown in the bar graph of FIG.

  As can be seen from this bar graph, it is understood that the overhanging portions 29 in the middle foot region and the rear foot region are useful for reducing the tilt angle θ of the heel.

As described above, the preferred embodiments have been described with reference to the drawings. However, those skilled in the art will readily understand various changes and modifications within the obvious scope by viewing this specification.
For example, the same structure as the sole for the left foot may be applied to the sole for the right foot, or the present structure may be applied to only one of the left foot and the right foot.
The number of third rods provided in the third area may be three or more.
Various shapes can be adopted as the shape of the ridge or cleat.
Accordingly, such changes and modifications are to be construed as within the scope of the present invention as defined by the claims.

  The present invention can be applied to golf shoes.

11: First rod 12: Second rod 13: Third rod 11E, 12E, 13E: Lowermost ends 11C, 12C, 13C: Center 15: Mounted portion 16: Engagement protrusion
17: Tool locking part 2: Outsole body 2R: Rear end 20: Outer foot part 21: Inner foot part 25: Mounting part 29: Overhang part 3: Upper 4: Cleat 4F: Ground contact surface A1: First area A2 : Second area A3: Third area A4: Fourth area G1: First kite group G2: Second kite group G3: Third kite group

Claims (12)

A golf shoe mounted on the outsole body 2,
The center 11C is formed on the first heel 11 and the outer foot 20 having the center 11C on the inner foot 21 in the first area A1 of 50% of the front half of the outsole body 2 with respect to 100% of the overall length of the outsole body 2. A first rod group G1 including a first rod 11 having,
A second heel 12 having a center 12C in the inner foot portion 21 of the second area A2 of 25% of the rear end portion of the outsole body 2 with respect to the overall length 100% and a second heel having a center 12C in the outer foot portion 20. A second eyelid group G2 including 12;
A third area A3 between the first area A1 and the second area A2 has a center 13C in the outer foot portion 20 of the third area A3, and includes a third ridge 13 to which most of the outer foot portion 20 of the third area A3 belongs. With a 3 鋲 group G3,
A golf shoe in which the position of the center GC of the third collar group G3 is set in a fourth area A4 that is 30 to 45% from the rear end 2R of the sole body 2 with respect to the total length of 100%. In claim 1,
The first pitch P <b> 1 between the first heel 11 disposed behind the outer foot 20 of the outsole body 2 in the first heel 11 and the third heel 13 adjacent to the first heel 11. When,
The second pitch between the second rod 12 disposed in front of the outer foot 20 of the outsole body 2 in the second rod 12 and the third rod 13 adjacent to the second rod 12. Golf shoes 0.7 * P2 ≦ P1 ≦ 1.3 * P2 (1) where P2 satisfies the following expression (1). In claim 2,
A golf shoe in which a height position of the third rod 13 is equivalent to a height position of the first and second rods 11 and 12. In claim 2 or 3,
Golf in which the number of heels arranged on the outer foot portion 20 in the second and third areas A2, A3 is larger than the number of heels arranged on the inner foot portion 21 in the second and third areas A2, A3. shoes. In claim 4,
A golf shoe in which no heel is disposed on the inner foot portion 21 of the third area A3. In claim 4 or 5,
A golf shoe in which the number of first ridges 11 disposed on the outer foot portion 20 of the first area A1 is smaller than the number of first ridges 11 disposed on the inner foot portion 21 of the first area A1. In any one of Claims 1-6,
The shoe is a replacement shoe for the outsole body 2. In any one of Claims 1-7,
A golf shoe in which the outer foot portion 20 of the outsole body 2 has a protruding portion 29 that protrudes outward from the upper 3 in at least the second area A2. In claim 8,
A golf shoe in which the inner foot portion 21 of the outsole body 2 has another projecting portion 29 projecting outward from the upper 3 in the second area A2. In any one of Claims 1-9,
A golf shoe in which cleats 4 formed integrally with the outsole body 2 and projecting toward the ground are provided on the outer foot portions 20 of the first, second and third areas A1 to A3, respectively. In claim 10,
The height position of the ground contact surface 4F of the cleat 4 of the outer foot 20 in the third area A3 is equal to the height position of the ground contact surface 4F of the cleat 4 of the outer foot 20 in the first and second areas A1, A2. Golf shoes. In claim 10,
A golf shoe in which the heel protrudes toward the ground rather than the ground contact surface 4F of the cleat 4.