JPH1142302A - Club head of golf - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the carry of a ball by providing the inside of a hollow club head with a leaf spring for energizing a club-face. SOLUTION: This club head is a hexagonal body and has the club-face l with which a golf ball comes in contact on its front side. A sole part exists at its base. A neck part is fixed to a heel part continuous with the club-face 1 and a shaft is connected to its end. The club head is formed hollow and the thickness of a head shell 3 is set at for example, about 3 mm in the part of the club-face 1 and about 1.2 mm in the other part. Such club head is internally provided with the leaf spring 11. The club head is provided with leaf spring rests 7, 8 for supporting the leaf spring 11 at two points. As a result, the deformation of particularly the club-face part 1 of the club head is lessened as far as possible at the moment of contact with the golf ball. The kinetic energy of the club head is directly transmitted to the golf ball and the carry thereof is increased.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a golf club head, and more particularly to a hollow club head.

[0002]

2. Description of the Related Art Golf clubs, including putters and sand wedges, are required to fly a golf ball in a precise direction and far away. Therefore, clubs that fly as far as one yard are preferred. The golf ball collides with the head, transmits the energy of the head, and flies. Since the energy of the head is proportional to the square of this speed, the head speed needs to be as fast as possible to fly the golf ball far. The club must be held in hand and rotated to increase speed in a short time. For this, the club head should be as light as possible. However, no matter how light it is, it is not good if it hits the golf ball several times and breaks it. Therefore, the club must be as light and mechanically strong as possible. A hollow head made of iron or stainless steel has been developed as a material, and a material in which high-pressure gas is sealed in this hollow part has also been developed. Also, heads made of titanium, which is made of titanium, which has a higher elasticity than steel or stainless steel, are already available on the market.

[0003]

A head having a hollow portion filled with high-pressure gas flies farther than a hollow head, and a head made of titanium flies farther than iron or stainless steel. There was a certain effect.
However, golfers' desires are not quite satisfactory at this level. If a person has a golf club made of titanium, the golfer wants a golf club that can fly more.

An object of the present invention is to provide a golf club that can fly a golf ball farther than a conventional golf club.

[0005]

According to the present invention, in order to attain the above object, a hollow club head is provided with a leaf spring for urging a face surface. The leaf spring for urging the face surface is provided in an arch shape, and the liquid is sealed in a portion between the arch leaf spring and the face surface for urging the face surface, and The club head filled with high-pressure gas is provided with a leaf spring for urging the face surface, and the club head filled with high-pressure gas is further provided with a leaf spring for biasing the face surface. Further, the above-mentioned leaf spring for urging the face surface is a club head formed of chemical fibers.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings. FIG. 1 is an external view of a club head 10 according to an embodiment of the present invention, which is not the gist of the present invention, and therefore, a shaft portion is omitted. As is apparent from the external view of FIG.
Is no different from a regular club head. Basically, it is a hexahedron, with a face 1 facing the golf ball on the near side of the drawing, and a sole 2 on the bottom. A neck portion 5 is fixed to the heel portion 4, and a shaft is connected to the neck portion 5.

FIG. 2 is a sectional view of the club head 10 of FIG.
FIG. 3 is a cross-sectional view of the sole portion 2 when cut in a direction.
The club head 10 is hollow, and the thickness of the head shell 3 is about 3 mm at the face 1 and about 1.2 mm at the other parts. A leaf spring 11 is provided in a hollow portion of the club head 10.
Are provided at two places 7 and 8 for supporting the spring.

The club head 10 configured as described above
The operation of will be described. When the club head 10 hits the golf ball, it is better that the kinetic energy of the club head 10 be transmitted to the golf ball as much as possible. For this purpose, it is necessary to hit a golf ball on the sweet spot area 6 of the club head 10, which depends on the skill of the golfer. In order to transmit kinetic energy to the golf ball, the conditions required for the club head 10 are as follows:
0 is not deformed as much as possible. For example, when hit with a club head made of soft clay, it can be easily inferred that a golf ball does not fly far as compared with a normal club head. The kinetic energy is not transmitted to the golf ball because the club head itself absorbs energy and deforms when the golf ball hits the golf ball because the clay is soft.

A club head in which a high-pressure gas is injected into a hollow portion can fly a golf ball farther than a conventional club head in which a high-pressure gas is injected. Due to high internal pressure
This is because the deformation of the face portion of the club head is small when hitting the golf ball. Also, a club head made of titanium can fly farther than a club head made of iron or stainless steel because titanium has less elastic deformation than iron or stainless steel because it has a higher elasticity. It is.

Considering the above, in order to minimize the deformation of the club head 10, especially the face portion 1, as soon as the golf ball hits the golf ball, the face portion 1 must be removed as shown in the sectional view of FIG. Leaf spring 11 to reinforce
Therefore, the present invention was considered to be an effective method, and the present invention was accomplished. The leaf spring 11 is supported by spring supports 7 and 8.

When the leaf spring 11 is urged against the face portion 1 as described above, the face portion 1 attempts to deform at the moment of hitting the golf ball, but the leaf spring 11 functions to prevent this. As a result, deformation is prevented, and the kinetic energy of the club head is transmitted to the golf ball, and the golf ball flies far. The portion of the face portion 1 urged by the leaf spring 11 becomes the sweet spot area 6.

The club head shown in FIG. 3 is different from the club head shown in FIG. 2 in that the leaf spring 12 is fixed to the face portion 1 with an adhesive or welding. The deformation of the portion 1 is prevented, and the golf ball can be hit far.

FIG. 4 shows a club head 10 in which a leaf spring 15 for reinforcing the face portion 1 is provided in an arch shape. In the arch-shaped dam, the force applied to the arch convex portion by the water pressure is divided into two and dispersed, and all the forces are applied to the fixed portion along the arch shape. The face portion pressing portion 20 is provided on the back surface of the face portion 1, and all the pressure applied to the face portion 1 is applied to the arched leaf spring 15 via the face portion pressing portion 20. An arc-shaped leaf spring 15 having such an action is attached to the club head 1.
When the golf ball hits the golf ball, the pressure applied to the face portion 1 is transmitted to the leaf spring 15 and the direction of the arrows 13 and 14 is provided, as shown in FIG. And join the spring receivers 16 and 17. Even if a force is applied to the spring receivers 16 and 17, the head shell 3 is a place where it is difficult to be deformed, and even if it is deformed, it is very slight. Therefore, even when hitting a golf ball, the face portion 1 of the club head 10 is much less deformed than the conventional one, the kinetic energy possessed is transmitted without loss, and the golf ball flies farther.
The portion where the face portion pressing portion 7 is located becomes the sweet spot area 6.

FIG. 5 shows a leaf spring 15 for urging the face portion 1 and a club head 10 in which a liquid is sealed in a space A and a space B formed between the face portions 1.
Liquid is a hard substance that does not shrink like a gas when compressed. When the liquid is sealed in the space A and the space B, the force applied to the face portion 1 is transmitted to the liquid as it is, and the force is transmitted to the leaf spring 15. The leaf spring 15 is formed in an arch shape, and this force is bisected in the directions of arrows 13 and 14 and acts on the spring receivers 16 and 17. Even if it is applied to the spring receivers 16 and 17, this part is less deformed. From this, when the golf ball collides, the face 1
And the kinetic energy of the head 10 is not wasted,
It is transmitted to a golf ball and flies far away.

In order to increase the head speed, it is necessary to make the head lighter. However, even if liquid is sealed in the space A and the space B, the head does not become so heavy if acetone or ethanol having a low specific gravity is used. . The leaf spring 15 is also 1
If the fibers 1, 12, and 15 are made of chemical fibers, for example, carbon fibers, the weight can be reduced.

The club head 10 shown in FIGS. 2 and 4 is provided with leaf springs 11 and 13 and an injection valve 18 capable of injecting high-pressure gas into the hollow club head 10. Therefore, gas can be sealed in the hollow portion. Although the effect of enclosing the gas has already been described, a synergistic effect can be achieved by adding the leaf spring 11 and the like to this, and the golf ball can be made to fly farther. In addition, the injection valve 18 also has a role as a safety valve for releasing gas inside when the internal pressure becomes abnormally high.

The material of the clap head 10 shown in FIGS. 2 and 4 is made of iron or stainless steel. Not only this, it can be easily inferred that the same effect is obtained even with titanium.

When the inventor conducted experiments with the golfer's upper runner using the club head shown in FIGS. 2 to 5, 10% of the golf ball was able to fly farther than the conventional club head.

[0019]

As described above, the present invention can provide a golf club head that can fly farther than conventional ones by having the above-described structure.

[Brief description of the drawings]

FIG. 1 is an external view of a club head according to an embodiment of the present invention. FIG. 2 is a sectional view of the club head of FIG. FIG.
FIG. 3 is a sectional view of a club head different from FIG. 2. FIG.
It is sectional drawing of the club head which made the leaf spring which urges a face surface into an arch shape. FIG. 5 is a cross-sectional view of a club head in which liquid is sealed between a biasing leaf spring and a face surface.

[Explanation of symbols]

1. Face part 2. Sole part 4. Heel part 5. Neck 6. Sweet spot area 11, 12, 1
5. Leaf spring 7, 8, 16, 17 Spring receiver 10. Club head

Claims (6)

[Claims] 1. A golf club head, wherein a hollow club head is provided with a leaf spring for urging a face surface. 2. A golf club head, wherein a leaf spring for urging the face surface of the hollow club head is provided in an arch shape. 3. A golf club head characterized in that a liquid is sealed in a portion between an arch-shaped leaf spring for urging the face surface and the face surface. 4. A club head filled with high-pressure gas,
A golf club head provided with a leaf spring for urging a face surface. 5. A club head filled with high-pressure gas,
A golf club head, wherein a leaf spring for urging a face surface is provided in an arch shape. 6. The golf club head according to claim 1, wherein the leaf spring for urging the face surface is made of a synthetic fiber.