JP3143588B2 - Putter head - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a metal head for a putter as a golf club.

[0002]

BACKGROUND OF THE INVENTION Among golf clubs, putters are required to function differently from other woods and irons. In other words, with respect to other clubs in which the flight distance and the directionality are emphasized (other than the putter), in the case of the putter, the "easiness of giving a delicate sense of distance" is very important together with the directionality.

[0003] The most common mistake on the green that causes the player to experience great shock and upset is that they spend more than three strokes on putting, including so-called "three-patts". It can be said that the biggest cause of this mistake is that the sense of distance of the first put does not match.

In order to match the sense of distance in putting,
A very delicate feeling is required, but the “soft feel” is indispensable for creating this feeling.

[0005]

2. Description of the Related Art Recently, a putter using a relatively soft aluminum-based metal as a material for a putter head has been developed and has attracted attention. Not. One of the causes is that the aluminum head has a very small specific gravity, so it is necessary to increase the head volume to secure the head weight. It is considered that the thickness of the hitting surface was large (see FIGS. 4 and 5 ).

A putter has been proposed in which a soft resin is buried in the face surface (ball hitting portion) of a metal putter to obtain a soft feel of hitting. In addition, there is a problem that it takes time and cost, the resin portion is easily scratched, the durability is poor, and there are problems such as deformation due to temperature change.

[0007] Further, in recent years, the number of players who change the ball to be used from the conventional thread wound structure to a two-piece structure has been increasing, but the two-piece ball has a higher hitting feeling than the wound ball. However, many players were hard and did not feel well, making it more difficult for players to adjust the sense of distance by putting.

[0008] An object of the present invention is to solve such a conventional problem and to provide a putter which improves shot feeling and easily gives a delicate sense of distance.

[0009]

Therefore, a putter head according to the present invention is made of a light metal such as aluminum or aluminum alloy.
Whole a block-type, 0.5 mm to the face surface
At the rear of 2.0 mm, a slit portion that opens up and down is cut out to form a thin wall having a wall thickness of 0.5 mm to 2.0 mm on the face surface , and the thin wall is formed with a toe. Back only on heel
It was formed so as to be connected to the rest .

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on the illustrated embodiments.

FIG. 1 is a front view of a metal putter head showing an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line BB . In FIGS. 1 and 2, the wall thickness T at the center of the face surface 1 is set to 0.5 mm to 2.0 mm so as to be formed thinner (more sufficiently than in the past).

Reference numeral 2 denotes a head main body, which is a head main body.
The entire part 2 is a block type such as a kamaboko type, and a slit part 8 which opens up and down from the face surface 1 by 0.5 mm to 2.0 mm is cut out to form at least a central portion of the face surface 1. The wall thickness T is formed to be 0.5 mm to 2.0 mm.

That is, the heel 4 to which the shaft 9 is connected
A slit portion 8 having a sufficient width dimension in the left-right direction and an interval dimension of 1.0 mm to 7.0 mm is cut out except for the side and the toe 3 side (at the tip).

In particular, it is made of a light metal such as aluminum or an aluminum alloy , so that the wall thickness T of the face surface 1 can be made sufficiently thin while securing the weight of the entire putter head, so that the appearance does not cause any discomfort. There are advantages.

[0015] At a 1, tow 3 and the face surface 1 of the thin walls only in the heel 4 that is connected to the rear balance.

[0016] tail, is less than the wall thickness T is 0.5mm, the strength is insufficient, there is a risk of damage by the impact of the time of hitting the ball, on the contrary,
If it exceeds 2.0 mm, the soft feel at impact is impaired, and
It is difficult to give a delicate sense of distance.

By the way, in the case of a club other than a putter, the impact at the time of hitting the ball is large, so that the thickness of the hitting ball cannot be reduced so much in terms of strength. For example, even a metal such as stainless steel or soft iron used in an iron head is used. A thickness of 2.5 mm or more is required. However Fortunately, because in the case of the putter is much slower head speed at the time of hitting compared to these clubs, to be the same as the conventional product of Head material
Also by reducing the thickness of a material such as A Rumi was able to strength to withstand enough.

[0018]

Next, Table 1 shows examples of the present invention together with conventional examples.

[0019]

[Table 1]

Here, Conventional Example 1 has the shape shown in FIG. 3 and has a thickness T of 3.0 mm, while Conventional Example 2 has the kamaboko type shown in FIGS. 4 and 5 and has a thickness T '. It is as large as 50.0mm. Conventional example 3 has the shape shown in FIG.
It is 5.0mm.

The embodiment has the shape shown in FIG. 1 and FIG .

In Table 1 above, the "evaluation of shot feeling" means the average value of scores obtained by selecting ten golfers with a handicap of 5 to 25 as testers and evaluating the softness of the shot feeling on a scale of 1 to 5. (5 points indicate the best). On the other hand, for the sense of distance evaluation, ten testers also performed putting once without practice from each of the five points 15m to 20m from the cup on the green without practice, and the average value of the remaining distance was: 5 points for less than 1m, 4 points for 1.0m to 1.5m, 3 points for every 0.5m, 2 points, 1 point, 3m
In the case where the above remains, the average value of all the scores of 10 testers when the score is set to 0 is shown.

[0023] that from the above Table 1 of the following: Ru divided.

The embodiment, as apparent when compared with the conventional example 2, by reducing the thickness T by the slit section 8, it can be seen that the shot feeling, sense of distance is improved.

[0025] tail, and the thickness T to less than 0.5mm, the strength is insufficient, it had been damaged by the impact of the time of hitting the ball.

The embodiment can be easily manufactured by a conventional manufacturing method. That is, although the embodiment is manufactured by cutting from an ingot , it can be manufactured without any change from the conventional method, and the cost is not much different from the conventional method.

[0027]

The present invention has the following remarkable effects with the above-described structure.

The shot feeling becomes soft (soft feeling), and the feeling of putting distance is easily adjusted. Further, the manufacture is as easy as before, and the cost does not increase (almost).

The weight of the conventional Kamaboko-type putter head can be maintained, and there is no strange feeling in appearance. Immediately
It is made of light metal such as aluminum or aluminum alloy,
While securing the weight of the entire head,
The thickness T can be made sufficiently thin , and there is no strange appearance
Shape.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line BB of FIG.

FIG. 3 is a rear view and a sectional view showing a conventional example.

FIG. 4 is a front view showing a conventional example.

FIG. 5 is a sectional view taken along the line DD of FIG . 4;

[Explanation of symbols]

1 face surface 3 toe 4 heel 8 slit part T (wall) thickness

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-7-136301 (JP, A) JP-A-60-111667 (JP, A) JP-A 5-95560 (JP, U) JP-A 55- 154052 (JP, U) Practical application Microfilm (JP, U) (58) Photographs of the contents of the specification and drawings attached to the application form of the Japanese application No. 63-137980 (Japanese Utility Model Application No. 2-58466) Int.Cl. ⁷ , DB name) A63B 53/04

Claims (1)

(57) [Claims] 1. Light metal such as aluminum or aluminum alloy
Is block type, 0.5mm from face 1
At the back of ~ 2.0mm, the slit part 8 opening up and down
The notch is formed, and the wall thickness T of the face 1 is 0.5 mm or more.
A thin wall having a thickness of 2.0 mm is formed.
A putter head formed so as to be connected only to the rear part with the screw 4 .