JPH049061B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a golf club head made of fiber-reinforced plastic reinforced with carbon fibers, metal fibers, fibers having the same properties as these, or composite fibers thereof. The objective is to rationally increase the strength of the ball, increase the repulsive force of the ball, and impart durability.

Wooden heads such as persimmon wood heads, metal heads, and carbon fiber-reinforced plastic heads (hereinafter referred to as carbon heads) are widely used as heads of golf clubs, commonly referred to as wood clubs.

Among these, carbon heads are popular with golfers because they produce a sound similar to that of wooden heads, have excellent ball repulsion, and are highly resistant to fatigue.

However, in manufacturing the carbon head, the weakest neck part is reinforced with due consideration to the arrangement of carbon fibers, but the rest of the main body is reinforced with fibers interposed randomly. Therefore, in the molded head, the fibers are deflected, and there are parts with many intervening fibers and parts with few intervening parts.In particular, the direction of fiber arrangement is random, which causes variations in strength, making it difficult to obtain a head of uniform quality. Ta. In particular, in fiber-reinforced plastic heads that are hit repeatedly, if the fibers are deflected or arranged randomly, there will be a difference in the repulsive force of the ball when the ball is hit, and areas with fewer fibers will dent due to repeated impact. This will cause cracks to occur.

The present invention has improved such drawbacks, and an embodiment of the invention will be described with reference to the drawings. In a golf club head where a core body 1 made of any material is placed in a mold and the outer periphery is molded with fiber-reinforced plastic. The section region 2 is constituted by a known fiber arrangement or braid 3, and the direction of the fibers of the other head body is arranged approximately parallel to the axis in the toe direction from the neck of the head body, and approximately perpendicular to the axis. This is a golf club head characterized by having a four-position arrangement, and a combination arrangement thereof.

In this invention, as described above, the fiber direction of the head body excluding the neck area is arranged approximately parallel to or perpendicular to the axis of the head body in the toe direction from the neck area, so that each part of the body has approximately equal strength. At the same time, the altitude also increases.

In this way, the above-mentioned drawbacks that tend to occur in conventional fiber-reinforced plastic heads in which fibers are randomly interposed are eliminated, and the repulsion force is increased, which not only provides excellent durability but also increases the flight distance of the ball.

[Brief explanation of drawings]

FIG. 1, FIG. 2, and FIG. 3 are explanatory diagrams of fiber arrangement states of the present invention. 1... core body, 2... neck region, 3... braid, 4... fiber arrangement direction.

Claims (1)

[Scope of Claims] 1. In the head of a golf club molded from any fiber-reinforced plastic, the direction of the fibers of the head body excluding the neck region is made to be substantially parallel or orthogonal to the axis of the head body in the toe direction from the neck region. A head of a golf club characterized in that the head is arranged in the following manner. 2. The head of a golf club according to claim 1, wherein the fiber direction of the head body is arranged in a combination of substantially parallel and substantially perpendicular to the axis of the head body in the toe direction from the neck portion.