JPH0810364A - Golf club - Google Patents

Abstract

(57) [Abstract] [Purpose] The position of the center of gravity of the head, such as height and depth, can be easily controlled to lower the center of gravity. [Structure] The head shell 1 is configured by combining a plurality of materials 2 and 3 having different specific gravities and using a material 3 having a large specific gravity below, and combining a plurality of materials having different specific gravities to a material having a large specific gravity. Used below the ball striking face, on the opposite side of the ball striking face, and in front. Since a material with a large specific gravity is used below, a head with a low center of gravity can be easily made,
Further, the height, depth, and front position of the center of gravity can be easily adjusted by disposing a plurality of materials having different specific gravities.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a golf club in which the position of the center of gravity of a head can be adjusted.

[0002]

2. Description of the Related Art Metal wood is the most widely used golf club head wood club at present. Various materials are used. Among these metal woods, stainless steel is the most common in terms of cost and strength. In addition, new materials such as carbon, titanium, and titanium mesh, which are different from the main body material, are also used for the ball striking face (face).

Generally, the trajectory of a hit ball is slightly different depending on the material of the club head, the angle of the hitting surface, the position of the center of gravity, etc., and how to select these is an important factor for determining the goodness or badness of the club head. .

[0004]

However, in the case of making a driver, it is actually difficult to make a large head whose volume required by a golfer is 200 cc or more and whose weight is 200 g or less. Even if the head is formed, there are problems that the thickness of the head portion becomes thin and the strength / rigidity of the entire head decreases. Therefore, under such conditions, it becomes very difficult to control the height and depth of the center of gravity and the position in front of the center of gravity.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a golf club in which the position of the head such as height and depth of the center of gravity can be easily controlled to lower the center of gravity. It is a thing.

[0006]

To this end, the present invention is characterized in that a plurality of materials having different specific gravities are combined to form a head shell using a material having a large specific gravity below.
Also, combining a plurality of materials with different specific gravities, a material with a large specific gravity is placed below the ball striking face of the head shell, on the opposite side of the striking face,
And is used in the front.

[0007]

In the golf club of the present invention, the head shell is formed by combining a plurality of materials having different specific gravities and using a material having a large specific gravity downward, so that a head having a low center of gravity can be easily manufactured. In addition, combining a plurality of materials with different specific gravities, a material with a large specific gravity is
Since it was used on the side opposite to the ball striking face and on the front side, the height of the center of gravity,
The depth and the front position can be easily adjusted by disposing a plurality of materials having different specific gravities.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing one embodiment of a golf club according to the present invention, and FIG. 2 is a diagram showing another embodiment of a golf club according to the present invention. In the figure, 1 is a head shell, 2 and 3 are ball striking face members, 4 is a shaft portion, 11 is a depth-of-gravity adjusting member,
Reference numeral 12 denotes a center-of-gravity front adjustment member.

In FIG. 1, a head shell 1 has a striking face formed by dividing the striking face members 2 and 3 into an upper layer and a lower layer. The ball striking members 2 and 3 are made of different materials such as titanium and copper having a large difference in specific gravity, and the specific gravity of the ball striking member 3 in the lower layer is larger than that of the ball striking member 2 in the upper layer. Alternatively, a material other than metal such as resin may be used. By doing so, a club head having a low center of gravity can be manufactured, and the height of the center of gravity can be changed by changing the ratio of the heights of the upper layer and the lower layer according to the difference in specific gravity.

In the above embodiment, the height of the center of gravity can be changed, but the depth of the center of gravity from the ball striking face and the position of the center of gravity from the front to the front cannot be adjusted. Therefore, FIG. 2 shows another embodiment of the present invention for adjusting the depth of the center of gravity and the forward position, and is a view from the bottom. In FIG. 2, the center-of-gravity depth adjusting member 11 and the center-of-gravity front adjusting member 12 are metals having a large specific gravity, for example, copper or resin, and by using the center-of-gravity depth adjusting member 11 on the side opposite to the ball striking face of the head shell 1, By increasing the depth of the center of gravity from the ball striking face and using the center-of-gravity front adjustment member 12 in front of the head shell 1, the front position of the center of gravity is shifted.

The present invention is not limited to the above embodiment, but various modifications can be made. For example, in the above embodiment, the ball striking surface of the head shell 1, the opposite side,
Although a material having a large specific gravity is used in the front, this may be applied in the cavity of the head shell 1. That is,
A material having a large specific gravity may be welded to the lower inside of the ball striking face, the inner surface of the cavity opposite to the ball striking face, and the inner surface of the front cavity. Further, the hollow portion of the head shell 1 may be divided into an upper layer portion and a lower layer portion and filled with a filling material such as gas or resin having different specific gravities, and a metal having a large specific gravity may be partially used. It may be attached to the outer peripheral surface of.

[0012]

As is apparent from the above description, according to the present invention, a plurality of materials having different specific gravities are selectively used on the ball striking face, on the opposite side thereof, and in front of the head shell 1. Therefore, the head having a low center of gravity due to the difference in specific gravity Can be made easily. Therefore, the height, depth, and front position of the center of gravity can be easily adjusted by disposing a plurality of materials having different specific gravities. Further, even when an expensive material is used for the head, the cost increase can be suppressed by combining it with the material of other parts.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a golf club according to the present invention.

FIG. 2 is a diagram showing another embodiment of the golf club according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Head shell, 2 and 3 ... Hitting surface member, 4 ... Shaft part, 11 ... Depth of gravity center adjusting member, 12 ... Front center of gravity adjusting member

Claims (2)

[Claims] 1. A golf club characterized in that a head shell is formed by combining a plurality of materials having different specific gravities and using a material having a large specific gravity below. 2. A golf club characterized in that a plurality of materials having different specific gravities are combined and a material having a large specific gravity is used below the ball striking face of the head shell, on the side opposite to the ball striking face, and in front.