JP2013070940A - Golf shoe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a golf shoe having excellent antislip performance.SOLUTION: An outsole 10 of this golf shoe has a base 18, a large number of spikes 20, and a large number of small projections 22. The number of the spikes 20 is 7. The spike 20 is attachable/detachable to/from the base 18. 3 spikes 20 are present in a zone Z wherein a width direction distance from the end 34 on the inside in the bottom face 16 of the outsole 10 is 0% or above and 50% or below of the width W and wherein a length direction distance from the end 12 on the toe side is 10% or above and 45% or below of the length L. The ratio of the number of the spikes 20 present in the zone Z to the total number of the spikes 20 is 43%. The zone Z is centrally disposed with the spikes 20. The spike 20 is made of synthetic resin or crosslinked rubber.

Description

  The present invention relates to a golf shoe. Specifically, the present invention relates to an improvement in the outsole of a golf shoe.

  When a golfer hits a golf ball, the golf ball is addressed so that the line connecting the right and left toes is substantially parallel to the target direction. In the address of a right-handed golfer, the left foot is located on the front side in the target direction and the right foot is located on the rear side in the target direction. At the address, the golf club head is located near the golf ball. From this state, the golfer starts taking back and swings the head backward and then upwards. The position where the head is most swung up is the top position. A downswing is started from the top position. The start of the downswing is called “turning back”. After turning back, the head is swung down and the head impacts with the golf ball. After the impact, the golfer swings the golf club forward and then upwards to reach the finish.

  A right-handed golfer makes a body turn from the top position to the finish with the left foot as the axis. At the same time, the golfer kicks the ground with his right foot and transmits the force to the golf ball. Right-handed golfers use the left foot as the axle and the right foot as the kick. For left-handed golfers, use the right foot as the axle and the left foot as the kick. Japanese Patent Application Laid-Open No. 2001-299406 discloses a golf shoe in which a difference in roles between a shaft foot and a kick foot is considered.

  A large force is applied to the shaft foot before and after turning back. This force can cause the foot shoe to slip with the ground. When slip occurs, the swing form is disturbed and a miss shot occurs.

  A large force is applied to the kick foot before and after impact. This force can cause the foot boot to slip with the ground. When slip occurs, the swing form is disturbed and a miss shot occurs. Slip further reduces the flight distance.

  There are golf shoes having spike pins made of metal or ceramic on the bottom surface. Spike pins prevent slipping. However, in this golf shoe, spike pins damage the lawn on the green, the floor of the clubhouse, the road surface of the walking path provided in the golf course, and the like. Many golf courses prohibit the use of golf shoes with spike pins. Golf shoes with spike pins have a feeling of being pushed up from the bottom and are not comfortable for golfers. Golf shoes with spike pins have not been widely used in recent years.

  Golf shoes in which a spike made of a synthetic resin or rubber is provided on the bottom instead of a spike pin are widely used. In this golf shoe, the lawn or the like is rarely damaged. This golf shoe is excellent in comfort.

JP 2001-299406 A

  The anti-slip performance of golf shoes having spikes made of synthetic resin or rubber is inferior to the anti-slip performance of golf shoes equipped with spike pins. In particular, improvement of anti-slip performance before and after turning back and before and after impact is desired.

  An object of the present invention is to provide a golf shoe excellent in anti-slip performance.

  The golf shoe according to the present invention includes a left foot shoe and a right foot shoe. Each of the left and right foot shoes includes an outsole having a base and a number of spikes projecting downward from the bottom surface of the base. Spikes are concentrated on the toe side and the inside of the outsole.

  Preferably, the distance in the width direction from the inside end on the bottom surface of the outsole is 0% or more and 50% or less of the width W, and the distance in the length direction from the end of the toe side is 10% or more and 45% or less of the length L. The ratio of the number of spikes present in a zone to the total number of spikes is 35% or more.

  Preferably, the spike is made of a synthetic resin or a crosslinked rubber. Preferably, the spike includes a disk and a plurality of hanging parts depending downward from the periphery of the disk.

  According to another aspect, the golf shoe according to the present invention includes a left foot shoe and a right foot shoe. The left foot shoe includes an outsole having a base and a number of spikes protruding downward from the bottom surface of the base. The distance in the width direction from the inside edge on the bottom surface of the outsole is 0% or more and 50% or less of the width W, and the distance in the length direction from the edge of the toe side is 10% or more and 45% or less of the length L. The ratio of the number of spikes present in the zone to the total number of spikes is 35% or more.

  According to still another aspect, the golf shoe according to the present invention includes a left foot shoe and a right foot shoe. The right foot shoe includes an outsole having a base and a number of spikes projecting downward from the bottom surface of the base. The distance in the width direction from the inside edge on the bottom surface of the outsole is 0% or more and 50% or less of the width W, and the distance in the length direction from the edge of the toe side is 10% or more and 45% or less of the length L. There are more than 35% spikes in the zone.

  In the golf shoe according to the present invention, the slip is suppressed by the spike. This golf shoe is excellent in anti-slip performance.

FIG. 1 is a side view showing a left foot shoe of a golf shoe according to an embodiment of the present invention. FIG. 2 is a bottom view showing an outsole of the left foot shoe of FIG. 1. 3A is an enlarged bottom view showing a spike of the outsole of FIG. 2, and FIG. 3B is a cross-sectional view taken along line BB of FIG. 3A. FIG. 4 is a bottom view showing an outsole of a shoe for a left foot of a golf shoe according to another embodiment of the present invention.

  Hereinafter, the present invention will be described in detail based on preferred embodiments with appropriate reference to the drawings.

  The golf shoe according to the present invention includes a left foot shoe and a right foot shoe. 1 and 2 show a left foot shoe 2. The left foot shoe 2 is worn on the right leg of a right-handed golfer. The left foot shoe 2 is also worn by a left-handed golfer. The right foot shoe has a shape in which the shape of the left foot shoe 2 is mirror-inverted. The right foot shoe is worn on a right-handed golfer's kick leg or a left-handed golfer's axle. Hereinafter, the case where it is worn by a right-handed golfer is taken as an example, and the present invention will be described in detail.

  The left foot shoe 2 includes an upper 4 and a sole 6. The sole 6 includes an insole (not shown), a midsole 8 and an outsole 10. In FIG. 2, what is indicated by a symbol X is a width direction, and what is indicated by a symbol Y is a length direction. In FIG. 2, what is indicated by a symbol L1 is a length line. The length line L1 is the longest line that can be drawn in the outline of the outsole 10 in the bottom view. The length line L1 extends from the toe side end 12 to the heel side end 14. The length of the length line L1 is indicated by the symbol L. The Y direction (length direction) coincides with the direction of the length line L1. The X direction (width direction) is orthogonal to the direction of the length line L1.

  A known material is used for the upper 4. Natural leather, synthetic leather, artificial leather, woven fabric, or the like can be used for the upper 4. An inner material may be attached to the inner surface of the upper 4. A typical inner material is a woven fabric. A moisture-permeable waterproof material may be used as the inner material. A typical moisture-permeable waterproof material is a bootie made of GORE-TEX (registered trademark).

  The midsole 8 is made of a foam. Preferably, the midsole 8 includes a number of closed cells. At the time of landing, the midsole 8 undergoes compression deformation. The impact is absorbed by this compression deformation. A preferred base polymer in the midsole 8 is an ethylene-vinyl acetate copolymer (EVA). From the viewpoint of shock absorption, the midsole 8 preferably has a hardness of 70 or less, particularly preferably 65 or less. From the viewpoint of strength, the hardness is preferably 40 or more. The hardness is measured with a type A durometer in accordance with the rules of “JIS K 6253”.

  The outsole 10 is located below the midsole 8. Outsole 10 is joined to midsole 8. Bonding can be accomplished with an adhesive.

  FIG. 2 shows the bottom surface of the outsole 10. In FIG. 2, the left side is the inside, the right side is the outside, the upper side is the toe side, and the lower mold is the heel side. The outsole 10 includes a base 18, a large number of spikes 20, and a large number of small protrusions 22. In this embodiment, the number of spikes 20 is seven. The number of spikes 20 is preferably 6 or more and 10 or less. As shown in FIG. 1, each spike 20 protrudes downward from the bottom surface 16 of the base 18. The small protrusion 22 protrudes downward from the bottom surface 16 of the base 18. The small protrusion 22 is formed integrally with the base 18.

  The base 18 is made of a crosslinked rubber. Examples of preferable base rubber include natural rubber, isoprene rubber, butadiene rubber, styrene-butadiene rubber, acrylonitrile-butadiene rubber, and urethane rubber. The base 18 may be made of a synthetic resin or an elastomer. From the viewpoint of wear resistance, the hardness of the base 18 is preferably 70 or more, and particularly preferably 72 or more. From the viewpoint of followability to foot deformation, the hardness is preferably 95 or less, and particularly preferably 92 or less. The hardness is measured with a type A durometer in accordance with the rules of “JIS K 6253”.

  FIG. 3A is an enlarged bottom view showing the spike 20, and FIG. 3B is a cross-sectional view taken along line BB in FIG. 3A. FIG. 3B shows the plate 24 and the screw 26 together with the spike 20. The spike 20 includes a disk 28 and a hanging part 30. The disk 28 and the drooping portion 30 are integrally formed. The plate 24 and the screw 26 are integrally formed. The plate 24 and the screw 26 are made of a hard synthetic resin. The plate 24 is joined to the spike 20. A male screw is engraved on the screw 26. The screw 20 is screwed into a hole 32 formed in the base 18, whereby the spike 20 is attached to the base 18. The spike 20 is detachable from the base 18.

  In this embodiment, the number of hanging parts 30 is six. The number of hanging parts 30 is preferably 4 or more and 10 or less. Each hanging portion 30 hangs downward from the periphery of the disk 28. The drooping portion 30 pierces the lawn. This piercing prevents the golf shoe from slipping against the lawn. The lower end of the drooping portion 30 is located below the lower end of the small protrusion 22. In this golf shoe, the hanging portion 30 is deeper than the small protrusion 22 and pierces the lawn.

  The height H of the drooping portion 30 is preferably 1 mm or greater and 6 mm or less. Slip is sufficiently suppressed by the drooping portion 30 having a height H of 1 mm or more. In this respect, the height H is particularly preferably 2 mm or more. The drooping portion 30 having a height H of 6 mm or less hardly damages the lawn. In this respect, the height H is particularly preferably 4 mm or less. The diameter Di of the spike 20 is preferably 15 mm or more, and particularly preferably 20 mm or more. The diameter Di is preferably 30 mm or less.

  The spike 20 is made of a resin composition. An example of the base resin suitable for the spike 20 is polyurethane. The spike 20 may be formed by cross-linking the rubber composition.

  The hardness of the drooping portion 30 is preferably 75 or more and 98 or less. The drooping portion 30 having a hardness of 75 or more prevents the golf shoe from slipping. In this respect, the hardness is particularly preferably equal to or greater than 80. The drooping portion 30 having a hardness of 98 or less hardly damages the lawn. From this viewpoint, the hardness is particularly preferably 95 or less. The hardness is measured with a type A durometer in accordance with the rules of “JIS K 6253”.

  The height of the small protrusion 22 is preferably 2 mm or more, and particularly preferably 4 mm or more. The height of the small protrusion 22 is preferably 15 mm or less, and particularly preferably 10 mm or less.

  In FIG. 2, what is indicated by a symbol L2 is a line that passes through the inside end 34 of the bottom surface 16 and is parallel to the length line L1. What is indicated by a symbol L3 is a line that passes through the outside end 36 of the bottom surface 16 and is parallel to the length line L1. The distance W between the line L2 and the line L3 is the width of the bottom surface 16. In FIG. 2, what is indicated by a symbol L <b> 4 is a line that is parallel to the length line L <b> 1 and whose distance in the width direction from the inside end 34 is 50% of the width W.

  In FIG. 2, what is indicated by a symbol L <b> 5 is a line that is orthogonal to the length line L <b> 1 and has a lengthwise distance from the end 12 of the toe side of 10% of the length L. What is indicated by a symbol L6 is a line that is orthogonal to the length line L1 and whose distance in the length direction from the toeside end 12 is 45% of the length L.

  A large load is applied to the zone Z surrounded by the lines L2, L4, L5, and L6 in the bottom surface of the outsole 10 at the turnover. Hereinafter, the zone Z is referred to as a “high load zone”.

  As is clear from FIG. 2, three spikes 20 exist in the high load zone Z. Since the total number of spikes 20 is 7, the ratio PL of the spikes 20 existing in the high load zone Z is 43%. In this golf shoe, the spikes 20 are concentrated in the high load zone Z. In this golf shoe, slip at the time of turning back is suppressed. The ratio PL is preferably 35% or more, more preferably 40% or more, and particularly preferably 43% or more. This ratio PL is preferably 50% or less.

  When the total number of spikes 20 is 6, the number of spikes 20 present in the high load zone Z is preferably 3. When the total number of spikes 20 is 7, the number of spikes 20 present in the high load zone Z is preferably 3. When the total number of spikes 20 is 8, the number of spikes 20 present in the high load zone Z is preferably 3 or 4. When the total number of spikes 20 is 9, the number of spikes 20 present in the high load zone Z is preferably 4. When the total number of spikes 20 is 10, the number of spikes 20 present in the high load zone Z is preferably 4 or 5.

  The spike 20 that exists over the line L4, L5, or L6 and whose center is included in the high load zone Z is the spike 20 that exists in the high load zone Z. A spike 20 that exists across the line L4, L5, or L6 and whose center is not included in the high load zone Z is a spike 20 that does not exist in the high load zone Z.

  Concentrated in a zone where the distance in the width direction from the inside edge 34 is 0% to 50% of the width W and the distance in the length direction from the toe edge 12 is 12% to 43% of the length L. More preferably, spikes 20 are present. Concentrated in a zone where the distance in the width direction from the inside edge 34 is 0% to 50% of the width W and the distance in the length direction from the toe edge 12 is 15% to 40% of the length L. It is particularly preferred that spikes 20 are present.

  As described above, the outsole of the right foot shoe has a shape in which the shape of the outsole 10 of the left foot shoe 2 shown in FIG. The distance in the width direction from the inside end 34 on the bottom surface of the outsole of this right foot shoe is 0% or more and 50% or less of the width W, and the length direction distance from the toe side end 12 is 10% of the length L. The zone Z that is 45% or more is also referred to as a high load zone. A large load is applied to the high load zone Z before and after impact. By intensively arranging the spikes 20 in the high load zone Z, the right foot shoe is prevented from slipping before and after the impact. By intensively arranging the spikes 20 in the high load zone Z, the force of kicking the ground with the foot is sufficiently transmitted to the golf ball. This golf ball flies with a large flight distance.

  Also in the shoe for the right foot, the ratio PR of the spikes 20 existing in the high load zone Z is preferably 35% or more, more preferably 40% or more, and particularly preferably 43% or more. This ratio PR is preferably 50% or less.

  Also in the shoe for the right foot, when the total number of spikes 20 is 6, the number of spikes 20 present in the high load zone Z is preferably 3. When the total number of spikes 20 is 7, the number of spikes 20 present in the high load zone Z is preferably 3. When the total number of spikes 20 is 8, the number of spikes 20 present in the high load zone Z is preferably 3 or 4. When the total number of spikes 20 is 9, the number of spikes 20 present in the high load zone Z is preferably 4. When the total number of spikes 20 is 10, the number of spikes 20 present in the high load zone Z is preferably 4 or 5.

  Also in the shoe for the right foot, the width direction distance from the inside edge 34 is 0% to 50% of the width W, and the length direction distance from the toe side edge 12 is 12% to 43% of the length L. More preferably, the spikes 20 are intensively present in a certain zone. Concentrated in a zone where the distance in the width direction from the inside edge 34 is 0% to 50% of the width W and the distance in the length direction from the toe edge 12 is 15% to 40% of the length L. It is particularly preferred that spikes 20 are present.

  The golf shoe may include the left foot shoe 2 in which the spike 20 is concentrated in the high load zone Z and the right foot shoe in which the spike 20 is not concentrated in the high load zone Z. In this golf shoe, slip at the time of turning back is suppressed.

  The golf shoe may include the left foot shoe 2 in which the spike 20 is not concentrated in the high load zone Z and the right foot shoe in which the spike 20 is concentrated in the high load zone Z. In this golf shoe, slip at the time of impact is suppressed. In this golf shoe, a sufficient force can be transmitted to the golf ball.

  FIG. 4 is a bottom view showing an outsole 40 of a shoe for a left foot of a golf shoe according to another embodiment of the present invention. Although not shown in the drawings, the outsole of the shoe for the right foot has a shape obtained by mirror-inverting the shape of the outsole 40 of the shoe for the left foot shown in FIG. The outsole 40 has a base 18, seven large spikes 20, four small spikes 42, and a large number of small protrusions 22. The total number of spikes 20, 42 is eleven. The detailed shape of the large spike 20 is shown in FIG. In other words, the spike 20 includes a disk 28 and a hanging part 30. The small spike 42 has a shape in which the large spike 20 is reduced. In other words, the spike 42 also includes a disk and a hanging part. The small spike 42 may have a different shape than the large spike 20. The material of these spikes 20 and 42 is the same as the material of the spike 20 of the outsole 10 shown in FIG.

  In this embodiment, there are three large spikes 20 and two small spikes 42 in the high load zone Z. The number of spikes 20, 42 present in the high load zone Z is five. As described above, since the total number of spikes 20 and 42 is 11, the ratio of the number of spikes 20 and 42 existing in the high load zone Z to the total number is 45%. In this golf shoe, the spikes 20 and 42 are intensively arranged in the high load zone Z.

  Since the spikes 20 and 42 are intensively arranged in the high load zone Z, in this golf shoe, slip at the time of turning back is suppressed. The outsole of the right foot shoe has a shape in which the shape of the outsole 40 of the left foot shoe shown in FIG. 4 is mirror-inverted. Therefore, in this golf shoe, slipping of the right foot shoe before and after impact is also prevented.

  Hereinafter, the effects of the present invention will be clarified by examples. However, the present invention should not be construed in a limited manner based on the description of the examples.

[Example 1]
The rubber composition was put into the mold, pressurized and heated to mold the base and small protrusions. Six spikes having the shape shown in FIG. 3 were attached to this base to obtain a left foot shoe. The number of spikes in the high load zone is three. The rubber composition was put into the mold, pressurized and heated to mold the base and small protrusions. Seven spikes having the shape shown in FIG. 3 were attached to this base to obtain a right foot shoe. The number of spikes in the high load zone is two.

[Example 2-15 and Comparative Example 1-9]
Golf shoes of Example 2-15 and Comparative Example 1-9 were obtained in the same manner as in Example 1 except that the number of spikes was as shown in Table 1-5 below.

[Evaluation]
Golf shoes were worn by a right-handed golfer, and a golf ball was hit with a driver on a watered artificial lawn. This golfer was rated based on the following criteria for anti-slip performance at the time of turning back and impact. The results are shown in Tables 1 to 5 below.
A: Not slipping B: Slightly slipping C: Slippery

  As shown in Tables 1 to 5, the golf shoes of the examples are excellent in anti-slip performance. From this evaluation result, the superiority of the present invention is clear.

  The golf shoes according to the present invention can be worn when playing on a golf course. This golf shoe can also be worn during practice in the driving range.

2 ... Golf shoes 4 ... Upper 8 ... Midsole 10, 40 ... Outsole 18 ... Base 20, 42 ... Spike 22 ... Small projection 28 ... Disc 30 ..The hanging part

Claims (6)

It consists of left foot shoes and right foot shoes,
Each of the left foot shoe and the right foot shoe includes an outsole having a base and a number of spikes protruding downward from the bottom surface of the base,
A golf shoe in which the spikes are concentrated on the toe side and the inside of the outsole.   The distance in the width direction from the inside edge at the bottom of the outsole is 0% or more and 50% or less of the width W, and the distance in the length direction from the edge of the toe side is 10% or more and 45% or less of the length L. The golf shoe according to claim 1, wherein the ratio of the number of spikes present in the zone to the total number of spikes is 35% or more.   The golf shoe according to claim 1, wherein the spike is made of a synthetic resin or a crosslinked rubber.   The golf shoe according to any one of claims 1 to 3, wherein the spike includes a disk and a plurality of hanging parts depending downward from a peripheral edge of the disk. It consists of left foot shoes and right foot shoes,
The left foot shoe includes an outsole having a base and a number of spikes protruding downward from the bottom surface of the base,
The distance in the width direction from the inside edge at the bottom of the outsole is 0% or more and 50% or less of the width W, and the distance in the length direction from the edge of the toe side is 10% or more and 45% or less of the length L. A golf shoe in which the ratio of the number of spikes present in a zone to the total number of spikes is 35% or more. It consists of left foot shoes and right foot shoes,
The right foot shoe includes an outsole having a base and a number of spikes protruding downward from the bottom surface of the base,
The distance in the width direction from the inside edge at the bottom of the outsole is 0% or more and 50% or less of the width W, and the distance in the length direction from the edge of the toe side is 10% or more and 45% or less of the length L. A golf shoe in which the ratio of the number of spikes present in a zone to the total number of spikes is 35% or more.

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