JPH11206938A - Putter type golf club - Google Patents

Abstract

PROBLEM TO BE SOLVED: To correctly reproduce the direction of a face set-up address in impacting. SOLUTION: A putter type golf club 1 is provided with a putter head 2 with a face 2a to hit a ball with, and shafts 4 having grips 3 connected to the putter head 2. The shafts 4 include a head arm 4a that is connected to the putter head 2 and extends upward, and a key shaft 4b that continues to the head arm 4a extends downward, touching the ground and can turn at a point C of the ground it touches.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a putter-type golf club capable of accurately reproducing the orientation of a face surface at the time of address and hitting a ball.

[0002]

2. Description of the Related Art Putting is performed on a green using a putter-type golf club (hereinafter sometimes simply referred to as "putter"). In this putting, a driver or an iron is used. A more accurate direction of the hit ball is required as compared to a shot or the like. In order to improve the directionality of the hit ball, it is important how the normal direction of the face surface of the putter can be adjusted to the intended direction when hitting the ball.

[0003] For this reason, the player usually makes a swing in order to accurately match the face surface at the time of addressing with the target and reproduce the direction of the face surface at the time of addressing to reach an impact.

However, conventional general putters are:
Because it is supported by the player's hand, it is extremely difficult to accurately reproduce the orientation of the face at the time of impact due to the timing shift of the wrist or shoulder during the swing and the extreme tension, etc. is there.

As a countermeasure for this, a so-called "long putter" in which the shaft of the putter is lengthened has been proposed.
In this long putter, the fulcrum is created by holding the upper end of the shaft with one hand and pressing it against its own body (for example, the chest or forehead) to create a fulcrum. By swinging the putter head while holding the part, the face direction is prevented from changing. Such a long putter can suppress the face from being out of order to some extent, but since the fulcrum of the putter's swing is on the player's body, the position of the fulcrum will be Will change,
As a result, there is a problem that the face surface cannot be reproduced in the same manner as at the time of addressing.

The present invention has been devised in view of such a problem, and based on providing a fulcrum for the swing of a putter on the ground, it is possible to accurately reproduce the orientation of the face surface at the time of impact at the time of impact. It is an object of the present invention to provide a putter-type golf club.

[0007]

According to a first aspect of the present invention, there is provided a putter head having a face surface for hitting a ball, and a shaft portion connected to the putter head and having a grip portion. A putter-type golf club, wherein the shaft portion is connected to a putter head and extends upward, and a base shaft connected to the head arm portion and extending downward to contact the ground and rotate at the contact point. And a part of the golf club.

According to a second aspect of the present invention, there is provided the putter-type golf club according to the first aspect, wherein the face surface of the putter head has a plane including the face surface passing through the ground contact point.

According to a third aspect of the present invention, there is provided the putter-type golf club according to the first or second aspect, wherein the putter head moves in a circular orbit around the ground contact point to hit the ball.

According to a fourth aspect of the present invention, the grip portion comprises a first grip attached to a head arm portion and a second grip attached to a base shaft portion. 4. A putter-type golf club according to any one of Items 1 to 3.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a putter (ball hitting posture) according to the present embodiment, which includes a putter head 2 having a face 2a for hitting a ball, and a shaft part 4 connected to the putter head 2 and having a grip part 3. It has.

In the present embodiment, the putter head 2 is of a so-called mallet type which bulges rearward from the face surface 2a in a semicircular shape, but it is of a so-called toe-and-heel type, L-shaped, T-shaped and the like. Various shapes can be adopted. The putter head 2 is made of, for example, carbon steel, stainless steel, aluminum alloy,
Copper and other various materials can be adopted and can be formed by various methods such as shaving, casting, and forging. The face surface 2a
It is also possible to embed a different kind of material such as resin. The putter head 2 has a hosel 2b to which the shaft portion 4 is connected.

The shaft portion 4 is connected to the putter head 2 and extends upward. A base shaft connected to the head arm portion 4a and extending downward to contact the ground and rotate at the contact point C is provided. 4b. In the present embodiment, the shaft portion 4 is formed by bending a single shaft material at a substantially intermediate portion thereof. However, the two shaft materials are connected by welding, adhesive, screwing, or the like. That is fine.

Further, the head arm 4a and the base shaft 4b may be pin-connected, for example, in a compass shape. This case is preferable in that the angle α formed between the head arm 4a and the base shaft 4b can be appropriately adjusted for each player. However, during the play, the angle α is fixed so as not to change.

It is preferable that a sharp portion 5 is formed at the lower end e of the base shaft portion 4b in order to prevent a displacement or the like when the device is grounded on the ground. Thereby, the swing of the putter is particularly stabilized. In this example, a conical portion is formed at the lower end e of the base shaft portion 4b, but it may be tapered as shown in FIG.

In the present embodiment, the grip portion 3 comprises a first grip 3a attached to the head arm portion 4a and a second grip 3b attached to the base shaft portion 4b. These first and second grips 3a, 3b
It is desirable that the fists be provided with different heights, for example, so that the fists holding these grips do not come into contact with each other.

With such a putter 1, the dimensions of the putter head 2 and the shaft portion 4 are set such that the lower end e of the base shaft portion 4b comes into contact with the ground when the putter head 2 is placed on the ground in a hitting posture. Is preferably set. If the length L of the putter is too large, the weight of the putter 1 increases,
The swing operability is deteriorated, and the transportability and storage property are reduced. Conversely, if the length L of the putter is too small, a smooth swing may be hindered.

The face surface 2a of the putter head 2
Is attached to the head arm 2 so that a virtual plane P (shown in FIG. 2) including the face surface 2a passes through the ground point C, so that a more natural and smooth swing posture can be taken. It is preferable because it is possible.

As the putting style of the putter of the present embodiment, as shown in FIG. 2, first, the normal direction of the face surface 2a of the putter head 2 is directed toward the target O, and the putter style of the base shaft portion 4b is held with one hand. The user grips the second grip 3b and grounds the grounding end C to the ground to take an address for forming a fulcrum.

With the other hand, the first grip 3a of the head arm portion 4a of the shaft portion 4 was held, and the putter head was moved in the R direction in the figure while rotating the base shaft portion 4b according to the distance. Thereafter, the ball B can be pushed out in the F direction to impact the ball B. Therefore, by rotating the base shaft portion 4b about the grounding point C, the head arm 4a and thus the putter head 2 can move on a circular orbit about the grounding point C to hit the ball B.

In such a swing, the direction of the face surface 2a of the putter head 2 during the swing will not change even if the ball is hit at an arbitrary timing and at an arbitrary strength, unless the position of the ground contact point C of the base shaft portion 4b is shifted. , Can be accurately reproduced in the same direction as the address. Further, since the ground contact point C of the base shaft portion 4b serving as a fulcrum of the swing is provided not on the player's body but on the ground, it is possible to prevent the position from being changed without being affected by the rotation of the body or the shift of weight.

As shown in FIG. 3, when the shaft portion 4 is viewed from the face side in the striking posture of the putter head, the base shaft portion 4b is located substantially vertically, and the head arm 4a is inclined. Either of the head arms 4a and the base shaft 4b, as shown in FIG. In this example, the length of the shaft portion 2 before bending is 2 m.

As shown in FIG. 5, the putter head 2
Is bent at a portion where the distance d measured along the shape of the shaft portion 4 from the sole surface 2b is 127 mm and the base shaft portion 4b
Is formed in a straight line, so that the putter 1 conforming to the current golf rule “shaft linearity” can be manufactured. In this example, the length of the shaft portion 2 before bending was 0.7 m.

However, in this putter 1, since the height L is extremely low in the hitting posture, the putting style is such that the second shaft of the base shaft portion 4b is squatted or the knee is attached to the ground with one hand. Hold the grip of the ground point C
While holding the first grip 3a of the head arm portion 4a, and putting the putter head 2 around the ground point C.
Can be swung by rotating.

[0025]

As described above, according to the first aspect of the present invention, by rotating the base shaft of the shaft around the grounding point, the head arm connected to the base shaft and the putter head are connected. The ball can be hit by a swing moving on a circular orbit around the point C. Therefore, even if the ball is hit at an arbitrary timing and at an arbitrary strength, the direction of the face surface of the putter head during the swing is exactly the same as the direction at the time of addressing as long as the position of the grounding point of the base shaft does not shift. Can be reproduced.

Also, since the ground contact point of the base shaft portion of the shaft portion, which is the fulcrum of the swing, is provided not on the player's body but on the ground, it is possible to effectively change the position without being affected by body rotation or weight shift. Can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view of a putter type golf club showing an embodiment of the present invention.

FIG. 2 is a plan view illustrating the putting style.

FIG. 3 is a front view of the putter-type golf club according to the embodiment of the present invention as viewed from the face side.

FIG. 4 is a front view of a putter-type golf club showing another embodiment as viewed from the face side.

FIG. 5 is a front view of a putter-type golf club according to another embodiment as viewed from the face side.

[Explanation of symbols]

 Reference Signs List 1 putter type golf club 2 putter head 2a face surface 3 grip portion 3a first grip 3b second grip 4 shaft portion 4a head arm portion 4b base shaft portion C grounding point

Claims (4)

[Claims] 1. A putter-type golf club comprising a putter head having a face surface for hitting a ball, and a shaft portion connected to the putter head and having a grip portion, wherein the shaft portion is attached to the putter head. A putter-type golf club, comprising: a head arm connected and extending upward; and a base shaft connected to the head arm and extending downward to contact the ground and rotate at the contact point. 2. The putter-type golf club according to claim 1, wherein a plane including the face of the putter head passes through the ground point. 3. The putter-type golf club according to claim 1, wherein the putter head moves in a circular orbit around the contact point to hit the ball. 4. The grip according to claim 1, wherein the grip comprises a first grip attached to a head arm and a second grip attached to a base shaft. A putter-type golf club as described in the above.