JPH0422373A - Golf putter - Google Patents

Abstract

PURPOSE:To certainly hit a golf ball in the scheduled direction by conforming the root position of a shaft with the center-of-gravity position of a head in the longitudinal direction. CONSTITUTION:The center-of-gravity position coincident or almost coincident with the position 11 of the sweet sport of a head 1 is coincident with the root part 12 of a shaft in the longitudinal direction of the head. As the position of the longitudinal center of gravity of the head never exist in the end part of the head, the shaft never cross in the end part of the head. Therefore, the root part 12 of the shaft is present in the longitudinal middle position of the head.

Description

Detailed Description of the Invention (Field and Object of the Invention) Conventionally used golf putters have a shaft fixed at a position close to the end of the head even when the golf putter is approximately T-shaped. The position of the base of the shaft relative to the head is not the center of gravity of the head.

By the way, the sweet spot part of the head (the part where the golf ball is hit most effectively when it hits the ball) corresponds to approximately the center of gravity part 11 of the head 1, but in conventional golf putters, the golf ball is Even if you hit the sweet spot, due to the principle of force reaction in so-called Newtonian mechanics, the putter in Figure 1 (a) [g (for an abbreviated putter) or Figure 1 (b) (for an approximately T-shaped In the case of a butter ball in which the shaft is fixed near the end of the head), the head receives a reverse impact from the golf ball.

On the other hand, although the head is fixed by a shaft, in either case of FIG. 1(a) or FIG. 1(b), the fixed portion 12 and the sweet spot are misaligned, Furthermore, since the head l is fixed at the fixed portion 12, the impact caused by the reaction from the golf ball as described above causes a rotational moment to the head 1 as shown in FIGS. 1(a) and 1(b). (Figure 1 (a), Figure 1 (b) fg)
(both represent such rotational moments).

By receiving such a rotational moment, the angle of the head 1 will deviate somewhat from the angle in which the shaft was initially gripped, and the ball itself will therefore tend to deviate from the originally planned direction.

The present application aims to overcome these drawbacks in conventional golf putters.

(Means for Solving the Problems) In order to solve these problems, the present invention comprises a golf putter in which the position of the base of the shaft coincides with the position of the center of gravity of the head in the length direction.

That is, as shown in FIG. 2, unlike conventional golf putters, in the present application, the position of the center of gravity, which coincides with or almost coincides with the position of the sweet spot of the head, and the base of the shaft are aligned in the length direction of the head. It is characterized by the fact that it coincides with the
The reason for this expression is that it is difficult in engineering to achieve a perfect match.

).

Since the longitudinal center of gravity of the head cannot be located at the end of the head, it is impossible for the shafts to intersect at the end of the head.

For this reason, the golf putter of the present application cannot adopt the abbreviated shape of the conventional golf putter, and as shown in Figure 2, the base of the shaft is located halfway along the length of the head. (However, since the position of the center of gravity in the length direction of the head is not necessarily located at the center in the length direction, the base of the shaft of the golf putter of this application is not necessarily located at the center in the length direction of the head.) (It is not required that it exist.)

Each example will be described below.

The embodiment shown in FIGS. 3(a) and 3(b) has a shaft 2.
The fourth (
The embodiment shown in FIG.
The embodiment shown in FIG. 5(b) shows a configuration in which the shaft 2 is fixed to the back of the head l via a substantially V-shaped joint 3.

In all of these embodiments, the head 1 is located in front of the shaft 2, and this is a shape for hitting a golf ball while looking at the golf ball with the head 1 positioned in front of the shaft 2.

However, the method of fixing the shaft and head of the present application is not limited to these embodiments, and the method of fixing the shaft and the head in the present application is not limited to these embodiments. When integrally formed from the same material, a configuration in which the shaft 2 is screwed onto the head L as in the embodiment shown in FIGS. 7(a) and 7(b) is also conceivable (in addition,
The dotted line portion in FIGS. 7(a) and 7(b) shows the portion where the shaft is screwed inside the head. ).

In each of the embodiments shown above, the case where the root of the shaft does not exist in the center of the head in the length direction is shown.
In the present application, an embodiment may be considered in which the center of gravity in the length direction of the head is located at the center of the head, and the shafts also intersect at the center of the head, as shown in FIG.

In the embodiment shown in FIG. 8, the head protrudes from the base of the shaft on both sides, but instead of hitting the ball horizontally as in the past, the user can hit the ball as shown in FIG. When a player places a ball in front of his body and hits the ball with his face facing directly in front of his body, this is extremely convenient because the prongs of the head do not touch his body.

The embodiment shown in FIG. 9 is a modification of the embodiment shown in FIG. 8, in which a grip handle 21 is provided on the upper part of the shaft 2 and perpendicular to the shaft.

That is, in the front hitting method as described above, the user
By grasping the handle with one of both hands or palms and grasping the shaft with the other palm, an extremely stable grip can be achieved.

(Operations and Effects of the Invention) In the golf putter having the above configuration, as shown in FIG. By hitting the base of the inner shaft, it is possible to always hit the golf ball at the sweet spot position 11.

Also, since the sweet spot position 11 and the position 12 where the shaft is fixed to the head match, the first (
The rotational moment that accompanies the hitting of the ball, which occurs in conventional golf batters as shown in FIG.

As described above, the present invention makes it possible to hit a golf ball with a steadily aimed sweet spot, so the present invention has revolutionary value in golf butter.

[Brief explanation of drawings]

Figures 1(a) and 1(b): Top views for explaining that in a conventional golf batter, the head receives a rotational moment as the ball is hit. Figures 2(a) and 2(b) ) Ward: In the present invention, top views of cylinder 3(a), 3(b), and 4(a) showing a state in which the base of the shaft coincides with the position of the center of gravity in the longitudinal direction of the head, Fourth (b)
), FIG. 5(a), FIG. 5(b), FIG. 6(a), FIG. 6(b), FIG. 7(a), FIG. 7(b)l: Examples of the present application Side view and rear view shown in Figure 8: Front view of an embodiment in which the base of the shaft is located at the center of the length of the head Figure 9: An embodiment in which a grip handle is provided at the top of the shaft perpendicular to the shaft. Front view of the example FIG. 10, FIG.
(The white line arrow at the bottom indicates the direction of movement of the golf putter) Head The sweet spot position of the head (approximately the position of the center of gravity) 12. Position where the shaft is fixed to the head 2. Shaft 3. Joint 21. Attached to the shaft Grip handle 4 - Golf ball Patent attorney attorney representing the applicant Naoto Akao Figure 10

Claims (8)

[Claims] (1) A golf putter in which the position of the base of the shaft relative to the head matches the position of the center of gravity of the head in the length direction of the head. (2) The golf putter according to claim (1), wherein the shaft is directly fixed to the back of the head. (3) The golf putter according to claim (1), wherein the shaft is fixed to the head from behind via a joint. (4) The golf putter according to claim (1), wherein the shaft is fixed to the head from behind through a V-shaped joint. (5) The golf putter according to claim (1), wherein the shaft and the head are integrally formed of the same material. (6) The golf putter according to claim (1), wherein the shaft is screwed onto the central portion of the head. (7) The golf putter according to claim (1), wherein the center of gravity is located approximately at the longitudinal center of the head, and the shaft is perpendicular to the head. (8) Claim (7) characterized in that a grip joint is provided at the upper part of the shaft and perpendicular to the shaft.
Golf putter as described.