JPH1157086A - Putter head - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To easily stroke with a soft feel and to have excellent scratch resistance. SOLUTION: In a putter head fixed to the tip of a shaft 9 and having a head body 1 made of copper or a copper alloy, a skin protective coating is adhered to an outer peripheral surface except a face surface 2 of the head body 1 hitting a ball. I have.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a putter head, ie, a putter head, of a golf club used in a golf game.

[0002]

2. Description of the Related Art Conventionally, a putter head is made of a material having a large specific gravity, a heavy feeling, easy stroke stabilization, and a soft touch feeling when struck.
Attempts have been made to use copper materials such as brass.However, these conventional copper heads are inherently flexible, so the head surface is easily damaged, and there is a risk that the appearance will be poor immediately after use. , High hardness materials were used. Further, in such a head made of copper or copper alloy,
If the head becomes too heavy, it is difficult to control the strength of the stroke, so that only a shape with a small volume has been realized.

[0003]

However, in the recent tendency of the lawn on the green to be cut short and the green with a fast ball foot to be increased, a more soft feeling is required when hitting. In the case of a mallet type putter which is proposed to be easy to perform a stroke suitable for a green as described above, a copper head having a high hardness of There was a risk that the weight would be too large due to the wide shape and the stroke control would not be easy, causing errors.

Accordingly, an object of the present invention is to provide a putter head which is easy to stroke with a soft feel and has excellent scratch resistance.

[0005]

In order to achieve the above-mentioned object, the present invention provides a putter head which is fixed to a tip of a shaft and has a head body made of copper or a copper alloy.
A skin protective coating is adhered to the outer peripheral surface of the head body that hits the ball except for the face surface.

[0006]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

In the embodiment shown in FIG. 1, a mallet-type head main body 1 is shown, which is formed in a shape that is long and widely extended behind a face surface 2, that is, a so-called kamaboko shape.
The material forming the head body 1 is brass having a Vickers hardness of 100 as a whole. Mallet type head body 1
In order to reduce the weight and to distribute the weight to the toe 3 side, the heel 4 side, and the back side 5 side, the center portion is drilled by machining such as electric discharge precision machining to form the cavity 6. Have been. The hollow portion 6 is drilled from the sole 7 side by machining, and then covered with a brass plate at its opening. At this time, the cavity 6
Is preferably in the range of 20 to 85% of the head volume in terms of performance and manufacturing. At the end of the head body 1 on the heel 4 side, a cylindrical vertical hole 8 is provided, into which the tip of a shaft 9 is inserted.

[0008] The head body 1 except for the face 2, such as the crown 10, the sole 7, and the back side 5, of the head body 1.
Is coated with a chrome plating (surface protective film) having a thickness of about 2 to 10 μm by a conventional method. The face surface 2 is masked and is not plated, so that the brass surface is kept exposed.

The golf club putter of the embodiment according to the present invention having the above-described structure can enjoy the following functions and effects.

[0010] The material of the head body 1 is Vickers hardness 1
Since it is made of brass of 00, the weight of the head main body 1 can be moderately heavy, and a stable stroke depending on the weight at the time of hitting the ball can be achieved. In addition, since extremely soft brass having a Vickers hardness of 100 is exposed on the face surface 2, the sound transmitted to the hand at the time of hitting the ball is small, and an extremely soft hit feeling is obtained. Since the entire surface of the head main body 1 except the face surface 2 is coated with hard chrome plating, it is hardly damaged during use, less rust is generated, and an excellent glossy appearance is obtained. Made of brass with a large specific gravity (8.2 to 8.4),
Since the mallet-type putter in which the hollow portion 6 is formed in the center is used, the stroke for moving the head main body 1 in parallel with the target line connecting the target and the ball, which is suitable for high-speed green, is smaller than that of the conventional mallet-type putter. Significantly easier. In addition, the weight of the heavy brass is unevenly distributed on the toe 3 side, the heel 4 side, the back side 5 side, and the face surface 2 side of the head main body 1 by setting the hollow portion 6, so that the toe 3 side and the heel 4 side The moments of inertia before and after the left and right sides and on the back side 5 side and the face surface 2 side are respectively increased. The same stable rolling as when struck can be obtained.

In the above embodiment, as shown in FIG. 1, a hosel for inserting the shaft 9 into the head body 1 is not provided. Since the material of the head body 1 is made of flexible brass, if the hosel is formed integrally with the head body 1 as usual, the hosel may be too flexible and bend. However, a pipe-shaped hosel can be manufactured separately from the head main body 1 with a different material having high hardness, and this can be embedded in the head according to the present invention to form a rigid hosel.

The surface protective film is not limited to various existing plated films such as nickel-chromium plating, but also protects copper or copper alloy made of a material such as titanium coating, which has been tried in recent years, from scratches and has an anticorrosive effect. Any coating can be used as long as it has the following.

Further, as the copper alloy, copper + zinc, copper +
Various alloys containing iron, copper + iron + nickel, copper + tin, etc. as main components can be used, and lead, manganese, zinc,
It is also possible to select non-overlapping ones from iron, nickel, tin and the like and add a small amount. However, in any case, the content of copper is 53% or more.

The cavity 6 is precisely formed in order to precisely form the cavity shape, adjust the thickness around the face 2 and strictly distribute the weight around the face 2 which is a striking surface. It is preferable to perform machining, for example, by applying an NC machining technique capable of cutting with an accuracy of 1/100 mm.

The surface of the face 2 can be machined by milling or the like to leave traces of the surface and improve the appearance of the face 2.

[0016]

As described above, according to the present invention, the putter head body is made of a flexible copper or copper alloy having a large specific gravity, and a surface protective coating is formed on the outer peripheral surface of the head body except for the face surface. The head body is made to have an appropriate heavy weight so that a stable stroke can be performed like a pendulum depending on the weight, and a hard ball like a two-piece ball can be hit from the softness of copper. Also in this case, a soft hit feeling is obtained, and it is possible to hit the ball with a soft touch toward the cup. Also, since most of the outer peripheral surface except the face surface, which is the ball striking surface of the head main body, is covered and protected by the surface protective film, the head surface is hardly scratched, and hardly rusts,
Good appearance is maintained and durability is good.

Further, with the benefit of the surface protection film, the hardness of the copper or copper alloy used as the material of the head body is Vickers hardness 1 as described in claim 2.
Copper and copper alloys having a hardness of 20 or less (preferably 100 or less) are selected because they are particularly soft, and therefore have high hardness such as a conventional wound ball having a high compression value of a professional athlete or a two-piece ball generally used for general players. Even in the case of a ball, a remarkably soft feel is obtained.

In the case of a so-called mallet-type putter which is easy to perform a stroke parallel to a target line which is suitable for a recent fast green, a sole is formed behind the face surface so as to be substantially parallel to the ground. So that
Although the volume of the head main body increases, in the putter according to the present invention, as described in claim 3, since the inside of the head behind the face surface is hollow, the weight of the head main body does not become excessive. This makes it possible to finely adjust the strength of the stroke.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a preferred embodiment of the present invention.

[Explanation of symbols]

 1 Head body 2 Face surface

Claims (3)

[Claims] 1. A putter head fixed to a tip end of a shaft and having a head body made of copper or a copper alloy, wherein a skin protective coating is adhered to an outer peripheral surface excluding a face surface of the head body hitting a ball. Characterized putter head. 2. The putter head according to claim 1, wherein the Vickers hardness of copper or a copper alloy forming the head body is 120 or less. 3. The putter head according to claim 1, wherein a hollow portion is formed behind the face surface of the head main body.