JP3089247U - Metal club head with weight - Google Patents

Abstract

(57) [Summary] [Problem] To improve the stability of hitting a ball and improve the flying ball by increasing the sweet spot area of a hitting face plate by setting a center of gravity of a club head to a low center of gravity. A metal club head having a weight that maximizes the flight distance of a ball by increasing the height and reducing the loft angle. A striking face plate and a shaft fixing seat extending at one end of the striking face plate.
In the club head including the main body 10 having the following structure, W: 25 to 32
%, Ni: 10 to 17% by weight, and Fe: 45 to 60% by weight, and has a density of 9 to 11 g / cm ^3.
A metal club head having a weight, wherein the weight 13 is disposed.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an improvement in the weight distribution of a metal club head.Specifically, the club head has a low center of gravity and the area of a sweet spot is enlarged to improve the stability when hitting a ball. A metal having a weight that can increase the flying distance of the ball and increase the bonding strength between the weight and the club head body by maximizing the flying distance of the ball by increasing the flying ball and reducing the loft angle. It is about the club head made.

[0002]

[Prior art]

 Conventional metal club heads are generally molded as a single piece by casting stainless steel.In the manufacturing process, the club head must have the best center of impact and a wide sweet spot area. Usually, a method of adjusting the shape of the club head is adopted. Thereafter, a method of adjusting the position of the center of gravity of the club head by using a weight different from the material of the club head body was proposed. As an example, for example, Republic of China Patent No. The invention relates to the invention of "weight arrangement structure" and the invention of 359186, "weight arrangement structure of metal club head".

[0003]

[Problems to be solved by the invention]

 However, since the weights used for these are manufactured by powder metallurgy, it is very difficult to manufacture products with complicated external shapes or those with sharp corners. The stability of the density tolerance is low, and the size of the product is also limited by the powder compression ratio and the punching machine used. Therefore, it is not only possible to manufacture a club head having a simple appearance, but also it is extremely difficult to control the density and dimensions of the product with high precision. In addition, when the club head body and the weight are firmly connected, the former adopts the screwing method and the latter adopts the fitting method, but in any case, the club head body and the weight are firmly connected. Since it is difficult to use the weight, the combined weight may be easily dislodged by the impact of hitting the ball during use.

[0004]

[Means for Solving the Problems]

The present invention solves the above problems all at once by adjusting the type and amount of elements contained in the weight in the club head body, and the arrangement of the weight in the club head body, etc. In a club head composed of a main body 10 having a striking face plate 11 and a shaft fixing seat 12 extending at one end of the striking face plate 11, W: 25 to 32% by weight, Ni A metal club head having a weight, comprising a weight 13 made of an alloy containing 10 to 17% by weight and Fe: 45 to 60% by weight and having a density of 9 to 11 g / cm ^3. provide.

[0005]

[Action]

The present invention solves the above-mentioned problems, and a weight made of a W-Ni (tungsten-nickel) alloy having a density of 9 to 11 g / cm ³ and a lower density than that of the club head body is placed under the back of the club head body. By arranging the club head at the edge, the position of the center of gravity of the entire club head is moved downward and downward, so that the center of gravity of the club head can be lowered and the area of the sweet spot can be increased. As a result, the flying ball at the time of hitting can be increased, so that the loft angle can be given flexibility.

[0006]

[Embodiment of the invention]

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a perspective view of a first embodiment of a metal club head having a weight according to the present invention, FIG. 2 is a rear view of FIG. 1, and FIG. 3 is a side sectional view taken along line 3-3 in FIG. It is a figure. FIG. 4 is a rear view of a second embodiment of the metal club head having a weight according to the present invention, and FIG. 5 is a side sectional view taken along line 5-5 in FIG.

As shown in FIG. 1, a metal club head having a weight according to the present invention has a main body 10 including a striking face plate 11 and a shaft fixing seat 12 extending at one end of the striking face plate 11. And a weight 13 is disposed on the back surface of the impact face plate 11. Hereinafter, an arrangement method of the two types of weights 13 will be described in detail.

In the first method, as shown in FIGS. 2 and 3, a weight 13 formed by a casting method is disposed on the lower rear edge of the impact face plate 11 by welding. In this arrangement, the weight (13) made of a W-Ni (tungsten-nickel) alloy material and having a density of 9 to 11 g / cm ³ is placed under the back of the main body 10 made of Ni or Cr stainless steel. Since it is arranged on the edge, the club head as a whole can have a low center of gravity, the area of the sweet spot can be enlarged, and further, the flying ball at the time of hitting can be made higher. There is no problem even if the loft angle is reduced. In addition, it is difficult to weld a weight that uses W (tungsten) as the sole component because there is a large difference in the melting point from the body made of an iron-based alloy. When the composition is adjusted to 25 to 32% by weight of W, 10 to 17% by weight of Ni, and 45 to 60% by weight of Fe to reduce the melting point of the weight, it can be firmly fixed to the main body 10. Become like

In the second method, as shown in FIGS. 4 and 5, a weight 23 formed by a casting method is fixed to a striking face plate 21 and a shaft fixed to one end of the striking face plate 21. This is a method of circulating the club head around the back edge of the striking face plate 21 in the main body 20 having the seat 22. Also in this method, the center of gravity of the club head is moved to the lower rear to lower the center of gravity of the club head. Since the area of the sweet spot on the striking face plate 21 can be increased, the stability at the time of striking can be improved.

[0010]

[Effect of the invention]

 Since the present invention has the above configuration, the following effects can be achieved. By moving the center of gravity of the entire club head to the lower rear, the area of the sweet spot on the striking face plate can be increased. Since the height of the ball can be increased, the loft angle of the striking face plate can be reduced to maximize the flight distance of the ball. The joining strength between the weight and the club head body can be increased.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of a metal club head having a weight according to the present invention.

FIG. 2 is a rear view of the first embodiment of the metal club head having the weight according to the present invention.

FIG. 3 is a side sectional view taken along line 3-3 in FIG. 2;

FIG. 4 is a rear view of the second embodiment of the metal club head having the weight according to the present invention.

FIG. 5 is a side sectional view taken along the line 5-5 in FIG. 4;

[Explanation of symbols]

 10,20 body 11,21 hitting surface 12,22 shaft fixing seat 13,23 weight

Claims (3)

[Utility model registration claims] 1. A club head comprising a main body 10 having a striking face plate 11 and a shaft fixing seat 12 extending at one end of the striking face plate 11, wherein W: 25 to 32 is provided on the back surface of the striking face plate 11. Weight made of an alloy containing 10% to 17% by weight of Ni and 45% to 60% by weight of Fe, and a weight 13 having a density of 9 to 11 g / cm ³ is provided. Club head. 2. The weight 13 is disposed at the lower edge of the rear surface of the striking face plate 11.
A metal club head having the weight described. 3. The metal club head having a weight according to claim 1, wherein the weight is annularly disposed on a peripheral edge of a rear surface of the striking face plate.