JPH01166784A - Golf club - Google Patents

Abstract

PURPOSE: To reduce curving of a ball flying path, variation of flying distance, and fluctuation and curving of rolling over after landing to a large extent, by providing regular mesh-like cuts with unevenness onto a ball hitting face of a club head. CONSTITUTION: On a ball hitting face of the club head 1, some mesh-like regular cuts 3 are provided. Pitch of the cut 3 is necessary to be smaller than dimple diameter of the ball, and shape of the cut 3 may be pyramid, semisphere and others. When contacting to a ball, as a hitting face has an uneven face with smaller pitch than that of the ball dimple, the face contacts to a ball at many points and transfers some excellent effects such as straightness of a hit ball path, stability of flying distance, reduction of curving after landing, and so forth, by a wide range of reduction of slippage at hitting ball.

Description

[Detailed description of the invention] This invention relates to a golf club head.

Currently, one set of golf clubs consists of two types: iron clubs (including putters) and wood clubs.

In conventional clubs, the ball-striking surface of the head (hereinafter referred to as the "striking surface") has several to more than ten horizontal grooves on all clubs except the putter, which has a smooth surface. .

Here, the club of the present invention has a notch in the shape described in the claims on the hitting surface of the head.

When hitting a ball with a conventional club, the ball and the hitting surface tend to make contact at one point because the hitting surface is smooth or has grooves only in the lateral direction and the pitch between the grooves is large. Therefore, when hitting, the pole may slip, causing the strength of the hit to be affected, slight fluctuations in the swing of the club may cause the trajectory of the ball to curve, variations in the length of the distance, and uneven or curved landing pieces. It has the disadvantage of causing

The club of the present invention has the effect of greatly reducing these drawbacks, and this effect will be explained in detail with reference to the drawings.

(a) Figure 1 shows a perspective view of the putter and details of its hitting surface. Reference numeral 1 indicates the putter head, 2 indicates the shaft, and 3 indicates the regular increments of the mesh according to the present invention.

As described above, the pitch of each of these increments needs to be smaller than the dimple diameter of the pole. The shape of the notches may be pyramidal, hemispherical, or any other shape. The effect will be explained based on the embodiment.

When the ball makes contact with the hitting surface, since the hitting surface of the present invention has an uneven surface with a pitch smaller than the ball dimples, in most cases, the ball makes contact at multiple points, and the impact is 1 point higher than when the ball is hit with a conventional hitting surface. The frequency of contact points is greatly reduced.

The reason why the bat effect is better with multiple points of contact than with one point is that in the case of multiple points, the ball and the hitting surface produce the same effect as if they were in contact with each other, and the ball is hit correctly in the direction of the hitting surface. Since the ball corresponds to the ball, it was confirmed through experiments that if the hitting surface is correctly facing the target cup, it has the effect of greatly improving the probability of hitting the ball.

(b) Figure 2 shows a perspective view of the iron (excluding the putter). 1 is the head body, 2 is the shaft, and 3 is the notched hitting surface of the present invention.

As in item (a), a ball hit with the batting surface of the present invention has a much lower slippage than the conventional one, which increases the rotation (commonly known as spin) of the fly ball. It was confirmed that by giving a flying ball an upward trend using wind pressure, it has the effect of extending the flight time, ensuring accurate directionality, and reducing variation in flight distance.

(c) Figure 3 shows a perspective view of the wood club. 1 is the head, 2 is the shaft, and 3 is the hitting surface.

This is the same effect as in item (b), but in the case of a wood, the striking force is even stronger, so the rotation and curve of the ball have a large effect on the target distance and direction. The ball hit with the club having the hitting surface of the present invention has excellent properties such as straightness of the flight path, stability of the flight distance, and reduction of the curvature of the landing platform due to a significant reduction in slippage at the time of hitting. It was confirmed through experiments that it was effective.

The effects of various clubs have been described above, and next, the details of the notches on the hitting surface and the state of the contact points between the ball and the hitting surface when hitting the ball will be explained with reference to the drawings.

(d) Figure 4 shows an example of the square pyramid increments on the hitting surface.

1 shows a sectional view of the striking surface, and 2 shows a plan view thereof.

(f) FIG. 5 is a cross-sectional view showing the details of the contact points between the ball and the hitting surface when the ball is hit at one point and when the ball contacts the hitting surface at multiple points.

1 is a cross-sectional view in which the hitting surface and 2 are in contact with each ball at one point. 3 is a cross-sectional view in which each of the hitting surfaces and balls are in contact at multiple points, and is shown as an example of a four-pyramid-shaped notch. It is something.

As is clear from the details of the contact points described above, the indentations made on the surface of the hitting surface of the present invention enable multiple contact points to be hit to a degree that is impossible with conventional hitting surfaces, improving the hitting effect as described above. was confirmed to be obtained.

[Brief explanation of the drawing]

Fig. 1, perspective view of the putter, 1 is the head, 2 is the shaft,
3 is the hitting surface. Figure 2 is a perspective view of the iron, 1 is the head, 2 is the shaft, and 3 is the hitting surface. Figure 3, perspective view of wood, 1 is the head, 2 is the shaft,
3 is the hitting surface. In Fig. 4, 1 is a cross section of the hitting surface, and 2 is a plan view. FIG. 5 is a sectional view of the contact point between the hitting surface and the ball, 1 and 3 are sectional views of the hitting surface, and 2 and 4 are sectional views of the ball.

Claims (1)

[Claims] (a) A club whose ball-striking surface of the club head has irregularities carved in a regular mesh pattern. (b) The shape of the increments is
The pitch of the increments, which may be of any shape (e.g., conical, pyramidal, hemispherical, etc.), is characterized by the fact that the dimples (hereinafter referred to as dimples) made on the surface of the ball being hit are smaller than the diameter of the circle formed with the surface. A golf club that satisfies the scope of the patent claims in item (a).