JPH0644445Y2 - Golf club head - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a golf club head, and more particularly to a golf club head in which a face plate is fixed to a face portion of a hollow head body made of metal.

[Conventional technology]

Conventional golf club heads in which a face plate is fixed to the face portion of a hollow head body made of metal are disclosed in, for example, Japanese Utility Model Publication No. Sho 53-21070 and Japanese Utility Model Publication No. 55-278. It has been known.

FIG. 4 shows a golf club head disclosed in Japanese Utility Model Laid-Open No. 53-21070.
On the face portion 13 of the hollow head body 11 made of metal,
A face plate 15 made of a material different from that of the head body 11 is fixed.

[Problems to be solved by the device]

However, in such a conventional golf club head, since the face plate 15 is fixed to the thin-walled face portion 13, a great energy loss occurs when hitting the ball, resulting in a short flight distance. was there.

On the other hand, when increasing the thickness of the face portion 13, there is a problem that the weight of the head main body 11 increases and it becomes necessary to reduce the overall shape of the head main body 11.

Therefore, as shown in FIG. 5 (disclosed in Japanese Utility Model Publication No. 55-278), a reinforcing member 17 is arranged in the hollow head main body 11 to reinforce the thin-walled face portion 13. However, in this case, there is a problem that the mechanism becomes very complicated and sufficient reliability cannot be obtained.

The present invention has been made to solve such a conventional problem, and provides a golf club head capable of significantly increasing the flight distance with a simple structure without increasing the overall weight of the head body. The purpose is to

[Means for Solving the Problems]

The golf club head according to claim 1 is a golf club head in which a face plate is fixed to a face portion of a hollow head main body made of metal, and the wall thicknesses of the toe portion side and the heel portion side of the face portion are equal to each other. Formed to be thicker than the average thickness of the bottom, heel and back face,
As a result, the toe side thick part and the heel side thick part are formed, and the thickness between these thick parts is made thinner than the toe side thick part and the heel side thick part. And a face plate made of a material having a smaller specific gravity than the metal forming the head body is fixed in a space formed by the thin portion, the toe-side thick portion and the heel-side thick portion.

A golf club head according to a second aspect of the present invention is the golf club head according to the first aspect, in which a weight member having a larger specific gravity than the face plate is disposed below the face plate.

[Action]

According to another aspect of the golf club head of the present invention, a face plate made of a material having a smaller specific gravity than the metal forming the head body is fixed in a space formed by the thin portion of the face portion, the toe-side thick portion and the heel-side thick portion. Therefore, the face plate is securely supported without increasing the total weight of the golf club head.

Further, in the golf club head of claim 2, since the weight member having a larger specific gravity than the face plate is arranged below the face plate, the center of gravity is located below the head body.

〔Example〕

The present invention will now be described in detail with reference to an embodiment shown in the drawings.

1 to 3 show an embodiment of the golf club head of the present invention. FIG. 1 is a front view thereof, FIG. 2 is a sectional view taken along line II-II of FIG. The drawing is a sectional view taken along line III-III in FIG.

In FIGS. 1 to 3, reference numeral 21 indicates a hollow head body made of, for example, metal such as stainless steel, and the head body 21 is filled with a member 23 such as foamed resin. .

As shown in FIG. 1, the head main body 21 is mainly composed of a hosel portion 25, a face portion 27, a toe portion 29, a sole portion 31 and a heel portion 33.

Thus, in this embodiment, as shown in FIG. 3, the thickness of the face portion 27 on the toe portion 29 side and the heel portion 33 side is the average thickness of the toe portion 29, the heel portion 33, and the back face portion 35. It is made larger, which allows the toe side thick part 37
And a heel side thick portion 39 is formed.

The wall thickness between these thick-walled portions 37, 39 is smaller than the wall thicknesses of the toe-side thick-walled portion 37 and the heel-side thick-walled portion 39, whereby the thin-walled portion 41 is formed.

The thin portion 41, the toe-side thick portion 37, and the heel-side thick portion 39
The face plate 43, which has a smaller specific gravity than the metal forming the head body 21, such as CFRP, ABS, paper fiber, linen fiber, ionomer resin, ceramic, aluminum, titanium, etc. is fixed in the space formed by Has been done.

Further, in this embodiment, a weight member 45, which has a larger specific gravity than the face plate 43 and is made of, for example, a metal, is arranged below the face plate 43.

In this embodiment, the face plate 43 is fixed to the face portion 27 by a known method using a screw, a dovetail groove or the like.

Therefore, in the golf club head configured as described above, the wall thicknesses of the toe portion 29 side and the heel portion 33 side of the face portion 27 are set to the toe portion 29, the heel portion 33, and the back face portion 3
5, the toe side thick part 37 and the heel side thick part 39 are formed, and these thick parts are formed.
The thickness between 37 and 39 is made thinner than the thickness of the toe-side thick portion 37 and the heel-side thick portion 39 to form a thin portion 41, and the thin-wall portion 41 and the toe-side thick portion 37 and the heel are formed. Since the face plate 43 made of a material having a smaller specific gravity than the metal forming the head body 21 is fixed in the space formed by the thick side portion 39, the head body 21 does not increase in overall weight and has a simple structure. It is possible to greatly increase the flight distance as compared with the conventional one.

That is, in the golf club head configured as described above, the head body is provided in the space formed by the thin portion 41 of the face portion 27, the toe-side thick portion 37, and the heel-side thick portion 39.
Since the face plate 43 made of a material having a specific gravity smaller than that of the metal forming the 21 is fixed, the face plate 43 is reliably supported without increasing the total weight of the golf club head, which reduces energy loss at the time of hitting the ball. In addition to being able to reduce it, it becomes possible to sufficiently secure the necessary repulsive force, and it is possible to improve the flight distance.

Further, in the golf club head configured as described above, since the toe-side thick portion 37 and the heel-side thick portion 39 are formed on both sides of the face plate 43, the sweet spot can be widened and the hitting direction can be increased. Can be stabilized.

In the golf club head configured as described above, the face plate 43 is provided below the face plate 43.
Since the weight member 45 having a larger specific gravity is arranged, the center of gravity is located below the head, which makes it easier to hit the ball and increase the flight distance.

When the weight member 45 is made of metal, it is possible to reduce scratching when hitting the ground.

[Effect of device]

As described above, in the golf club head according to claim 1, the thicknesses of the toe side and the heel side of the face portion are
The toe portion, the heel portion, and the back face portion are formed to have an average thickness greater than that of the toe side thick portion and the heel side thick portion. A metal that forms a thin portion by forming it to be thinner than the side thick portion and the heel thick portion, and forms the head main body in the space formed by the thin portion, the toe thick portion, and the heel thick portion. Since the face plate made of a material having a smaller specific gravity is fixed, it is possible to significantly increase the flight distance as compared with the conventional case by a simple structure without increasing the overall weight of the head main body.

Further, in the golf club head according to claim 2, since the weight member having a larger specific gravity than the face plate is arranged below the face plate, the center of gravity is located below the head, which makes it easy to raise the ball and to fly. There is an advantage that the distance can be increased.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the golf club head of the present invention. FIG. 2 is a sectional view taken along the line II-II in FIG. FIG. 3 is a sectional view taken along the line III-III in FIG. 4 and 5 are sectional views showing a conventional golf club head. [Explanation of symbols for main parts] 21 …… Head body 27 …… Face part 29 …… Toe part 33 …… Heel part 35 …… Back face part 37 …… Toe side thick part 39 …… Heel side thick part Part 41 ...... Thin part 43 ...... Face plate 45 ...... Heavy member.

Claims (2)

[Scope of utility model registration request] 1. A golf club head having a face plate fixed to a face portion of a hollow head body made of metal, wherein the toe portion and heel portion of the face portion have the same thickness as the toe portion and the heel portion. And thicker than the average thickness of the back face portion to form the toe-side thick portion and the heel-side thick portion, and the thickness between these thick portions is set to the toe-side thick portion and The heel side thick part is formed to be thinner than the heel side thick part to form a thin part, and the space formed by the thin part, the toe side thick part and the heel side thick part has a specific gravity higher than that of the metal forming the head main body. A golf club head having a fixed face plate made of a small material. 2. A weight member having a specific gravity larger than that of the face plate is arranged below the face plate.
The described golf club head.