JPH11290495A - Golf club extending flying distance and with non-deflection shaft - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a golf club extending flying distance and a head without deflecting in a perpendicular direction to a hit ball. SOLUTION: By a shaft 2 of an oval form long in a perpendicular direction to a ball, sufficient warping is provided in a ball hitting direction, and it is strengthened in a perpendicular direction to the hut ball to reduce deflection of a head 1, so both extending flying distance and a correct shot can be simultaneously achieved. For extending the flying distance, warping of the shaft is provided in the ball hitting direction, and deflection of the head 1 in the perpendicular direction to the hit ball is reduced, thereby the ball is easy to be applied to a sweet spot of the head 1.

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 rigidity of a shaft varies depending on the direction.

[0002]

2. Description of the Related Art Conventional golf club shafts have the same rigidity in all directions.

[0003]

A drawback of the conventional golf club is that the rigidity of the shaft is the same in all directions, so that if the rigidity of the shaft is reduced to increase the flight distance, the distortion in the direction perpendicular to the hit ball increases. The ball was less likely to hit the sweet spot of the club head, which tended to result in less distance. The present invention has been made to eliminate these disadvantages.

[0004]

In order to solve the above-mentioned drawbacks, the stiffness of the shaft of the golf club is changed in the hitting direction (X-
In the X 'direction), the club head may be weakened, the bending of the shaft may be increased, and the flight distance may be increased.
Basically, the cross section of the shaft may be an ellipse that is long in a direction perpendicular to the hit ball. FIGS. 1, 2, 3, 4, and 5 show five methods for this, and are a perspective view and a sectional view of a golf club in which a shaft (2) having a section (3) is attached to a head (1). It is. The present invention is a golf club configured as described above. (This shaft can be used for both iron and wood.)

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.
2, 3, 4, and 5 will be described. (A) As shown in FIG. 1, a golf club in which a hollow shaft (2) having an elliptical cross section that is long in a direction perpendicular to the hit ball on both the outer circumference and the inner circumference is attached to a head (1). (B) As shown in FIG. 2, in order to further enhance the effect of the shaft of FIG. 1, a golf club having an elliptical outer periphery that is long in a direction perpendicular to the hit ball and a circular hollow shaft (2) inside. (C) As shown in FIG. 3, in order to further enhance the effect of FIG. 2, a wire rope is provided between the outer circumference and the inner circle.
Golf club with shaft (2) in which piano wire (5) is embedded. (D) As shown in FIG. 4, a golf club having an oval shaft (2) whose entire cross section is long in a direction perpendicular to the hit ball. (E) As shown in FIG. 5, a golf club having a shaft (2) in which a plate-like reinforcing plate (6) for increasing rigidity in a direction perpendicular to a hit ball is inserted. The cross section may be a circle or an ellipse.

[0006]

According to the present invention having the above structure, the hitting direction uses the shaft of the shaft in order to extend the flight distance, and the head hits the sweet spot of the head with little blur of the head in the direction perpendicular to the hitting ball. Easier,
A golfer who knows the distance and accuracy can simultaneously improve the two tasks he or she wants.

[Brief description of the drawings]

FIG. 1 is a perspective view and a shaft sectional view showing an embodiment (a) of the present invention.

FIG. 2 is a perspective view and a shaft sectional view showing an embodiment (b) of the present invention.

FIG. 3 is a perspective view and a shaft sectional view showing an embodiment (C) of the present invention.

FIG. 4 is a perspective view and a shaft sectional view showing an embodiment (d) of the present invention.

FIG. 5 is a perspective view and a shaft sectional view showing an embodiment (E) of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Golf club head (wood and iron) 2 Golf club shaft 3 Shaft cross section (cross section perpendicular to shaft axis) 4 Golf club grip 5 Wire rope, piano wire, etc. 6 Plate shape for increasing rigidity of shaft Reinforcement plate

Claims (1)

[Claims] 1. A golf club having a shaft having a higher rigidity in a direction perpendicular to a hitting ball than a rigidity in a hitting direction.