GOLF INSOLE

Abstract

To provide an insole that promotes maintenance of the inclination angle and rotation of a motion axis, which is a rotation axis of the inside of both feet, in a golf swing. By making the thickness of the insole the lowest at the base of the thumb (A), and then gradually increasing the thickness from the medial heel (B), lateral heel (C), and little finger base (D), the thickness of the insole is the lowest, and the thickness is gradually increased to the base of the little finger (D). By maintaining the inclination angle of the ball of the foot and preventing the ball of the foot from lifting due to centrifugal force caused by the swing, the center of gravity is prevented from moving toward the little finger, and smooth rotation from the ball of the foot is promoted.

Description

TECHNICAL FIELD

The present invention relates to an insole that supports the maintenance of the inclination angle of the axis of motion and the rotation of the axis of motion during a golf swing.

BACKGROUND TECHNOLOGY

Mishits that occur in golf include slices where the ball curves too far to the right, hooks that curve too far to the left, hitting the top of the ball with the head of the golf club (the part that hits the ball), and hitting the ground in front of the ball. There are many things like duffles.

There are various causes for this, but the most important and fundamental factor is that the inclination angle of the axis of movement cannot be maintained smoothly using the adductor muscles on the inner side of the thigh, and that rotation cannot be maintained smoothly, or that the inclination angle cannot be adjusted properly. This is a huge deviation.

The appropriate angle of inclination of the medial axis of motion of the right foot (for right-handed players) from the backswing to the top after the start of the swing is an imaginary line extending vertically from the ground at 0 degrees, as shown in FIG. 1. In this case, the angle is approximately 5 to 10 degrees clockwise when viewed from the front.

In addition, the appropriate angle of inclination of the medial axis of motion of the left foot (for right-handed players) from the downswing to the follow-up when swinging the club is when the angle of an imaginary line extending perpendicularly from the ground is 0 degrees, as shown in FIG. 2. approximately 7 to 8 degrees counterclockwise when viewed from the front.

In other words, to prevent missed shots in golf, maintain an appropriate inclination angle of 5 to 10 degrees and smooth rotation of the right foot from the backswing to the turn, and maintain an appropriate inclination angle of the left foot of 7 to 8 degrees from the downswing to the follow. Maintenance and smooth rotation.

In order to maintain the inclination angle of the axis of motion and to rotate it smoothly, it is necessary to rotate using the adductor muscle group. However, in daily life, the adductor muscles are not used much, so their strength tends to decrease, and they are the muscles most likely to deteriorate with age. As a result, the adductor muscles cannot withstand the centrifugal force caused by the swing, causing the ball of the foot to rise and shifting the weight toward the little finger, making it difficult to maintain an appropriate inclination angle of the axis of movement.

For this reason, Patent Document 1 is disclosed in which the ball of the left foot (for a right-handed person) is molded into a mortar shape in order to smoothly rotate the axis of motion.

Further, Patent Document 2 is disclosed, which is characterized in that the outer side of the heel is raised to shift the weight to the toe.

Furthermore, Patent Document 3 is disclosed in which the outside of the sole is made higher than the inside of the sole for the purpose of correcting the swing form.

PRIOR ART DOCUMENTS

• • [Patent Document 1] JP 2021-62164
  • [Patent Document 2] JP 2018-114271
  • [Patent Document 3] JP-A-8-228802

SUMMARY OF THE INVENTION

Problems that the Invention Aims to Solve

Patent Document 1 states that by forming the ball of the left foot into a mortar shape, smooth rotation can be promoted. However, the ball of the foot becomes the starting point of the axis of rotation, but in order to do this, the thumb connected to the ball of the foot needs to bend and press down to grip the ground, and the sinking of the ball of the foot is a hindrance. Seem. In addition, in order to maintain the inclination angle of the left foot's axis of motion and rotate from the ball of the left foot as a starting point, the inclination angle of the right foot's axis of motion and the pressure of the ball of the right foot greatly influence Measures for the ball of the foot are also necessary.

In Patent Document 2, by making the lateral part of the heel higher than the medial part of the heel, the lateral movement of the calcaneus is suppressed and the weight is transferred to the toe side, but the little finger side of the sole is lower. As it is, the center of gravity tends to shift toward the little finger due to the structure of the foot, so it seems that this is not an adequate solution.

In Patent Document 3, simply making the outside of the sole higher than the inside of the foot will limit the range of motion of the ankle, and it is expected that the weight will shift to the inside of the heel, causing the weight to shift to the ball of the foot. I don't think it will go smoothly.

In view of the above, the present invention provides an insole that maintains an appropriate inclination angle of the left and right feet to prevent missed shots and smoothly rotates the axis of motion.

Means to Solve Problems

The golf insole according to the present invention is a pair of insoles that are inserted into the left and right sides of golf shoes. It has the characteristic of being molded lower than the previous model.

Further, the cross section E (from A to D) and the cross section F (from B to C) have substantially the same inclination angle, and are characterized in that the inclination angle is 4 to 8 degrees. By making the inclination angles the same, D becomes higher than A, B, and C, and it is possible to suppress lifting of the ball of the foot and weight shift toward the little finger side.

Further, the thickness of the thumb base A, the inner heel B, the outer heel C, and the little finger base D gradually increases. The height difference between them is 2 to 5 mm between A and B, 5 to 10 mm between B and C, and 1 to 5 mm between C and D.

Effect of the Invention

According to the present invention, the inclination angle of the inside movement axis of the right foot (for right-handed people) from the backswing to the top, and the inclination angle of the inside movement axis of the left foot (for right-handed people) from the downswing to the follow. It can be stabilized.

In addition, the center of gravity can easily shift to the balls of the left and right feet, and the thumbs that support them can more easily grip the ground and bend and step, making it easier to swing smoothly, stably, and powerfully.

BRIEF DESCRIPTION OF THE DRAWING

FIG. 1 shows an appropriate inclination angle of the axis of motion during a golf backswing. If the angle of a line extending perpendicularly from the ground is 0 degrees, the appropriate inclination angle is approximately 5 to 10 degrees clockwise.

FIG. 2 shows the proper angle of inclination of the axis of motion to follow from the downswing. If the angle of a line extending perpendicularly from the ground is 0 degrees, the appropriate inclination angle is approximately 5 to 8 degrees counterclockwise. If these values are too large or too small, it will cause troubleshooting.

FIG. 3 is a plan view of the present invention, the positions of the base of the thumb A, the inner side of the heel B, the outer side of the heel C, and the base of the little finger D, and the positional relationship between cross section E from A to D and cross section F from B to C.

FIG. 4 is a sectional view of section E and section F in FIG. 3.

MODE FOR CARRYING OUT THE INVENTION

In this embodiment, an example of the shape and material of a pair of insoles of the present invention to be installed in golf shoes will be described.

Taking the average size of men's insoles as an example of 25.5 cm, and assuming that the inclination angle of cross section E and cross section F is 5 degrees, the thickness of the base of the thumb A is 3 mm, the inner heel B is 6 mm, and the outer heel is 3 mm thick. Shape C so that it is 12.7 mm, and the base of the little finger D is 13.6 mm.

In order to prevent the inclination angle from collapsing, the bottom part of the insole is made of hardening ethylene vinyl acetate or polyurethane material as a base material. Furthermore, in order to reduce fatigue, an elastic urethane material is pasted to the middle part of the insole, but the thickness of the material is thinner at the base of the thumb A. Furthermore, synthetic fibers such as polyester or nylon are pasted on the surface to make it easier for toes to grip due to frictional resistance. Adjustment is made so that the sum of the multilayer structure becomes the value of step [0023].

EXPLANATION OF SYMBOLS

• • A Base of thumb
  • B Inner heel (thumb side)
  • C: Outer part of heel (little finger side)
  • D Base of little finger
  • E Cross section E (cross section line from A to D)
  • F Cross section F (cross section line from B to C)

Claims

1. A pair of golf insoles, characterized in that the thickness of the base of the thumb (A) is lower than that of the medial heel (B), the lateral heel (C), and the base of the little finger (D).

2. The insole according to claim 1, wherein the thickness of the insole gradually increases from the base of the thumb (A), the inner side of the heel (B), the outer side of the heel (C), and the base of the little finger (D).

3. An insole in which the thickness of the insole at the base of the thumb (A) is 10 mm or more lower than the base of the little finger (D).

4. The insole according to claim 1, wherein the angle of inclination from the base of the little finger to the base of the thumb (section E) is the same as the angle of inclination from the outer side of the heel to the inner side of the heel (section F).