JPH1170191A - Production of golf club head - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a head body of high accuracy and low centroid. SOLUTION: This process for producing a golf club head by joining a different material 2 to a head body 1 is a process for providing a head body member with a hole or recessed part in a fore stage for forming the external shape of the head body 1, disposing the different material 2 in this hole or recessed part, then joining the head body member and the different material 2 and forming the head body member to a desired head body shape.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a golf club head.

[0002]

2. Description of the Related Art
Such as lowering the center of gravity of the golf club head,
As a method of appropriately adjusting the weight balance, usually, there is a method in which after the head main body is completed in a predetermined shape, a high specific gravity material is attached to a predetermined position of the head main body by welding, bonding, screws or the like.

[0003] However, when the high specific gravity material is fixed to the head body by the above-described method, the fixing portion of the high specific gravity material is broken due to an impact applied when the golf club is used, and the high specific gravity material is removed from the head main body. Such a problem may occur.

Therefore, as a method for solving these problems, a hole is drilled in the sole portion of the head body completed in a predetermined shape by machining, and a high specific gravity material is inserted into this hole. Are welded, bonded or screwed.

However, in this method, a hole is formed in a head body completed in a predetermined shape, and a material having a high specific gravity is attached to the hole. It does not fit well, and a gap may be formed (it is troublesome to insert a curved material having a high specific gravity into a curved hole). In order to fix the high specific gravity material in the hole, means such as welding, bonding or screwing are required, and the number of operations increases accordingly. When adopted, there is a problem that the accuracy and the structure of the head body deteriorate due to the heat at the time of welding.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and provides a method of manufacturing a golf club head capable of efficiently manufacturing, for example, a high-precision low-gravity head.

[0007]

The gist of the present invention will be described with reference to the accompanying drawings.

In a method for manufacturing a golf club head in which different kinds of materials 2 are joined to a head main body 1, a hole 6 or a concave portion 9 is provided in a head main body member 4 before forming the outer shape of the head main body 1, and The golf club head is characterized in that the dissimilar material 2 is disposed in the recess 6 or the concave portion 9 and thereafter the head body member 4 and the dissimilar material 2 are joined and the head body member 4 is formed into a desired head body shape. It relates to a manufacturing method.

In the method of manufacturing a golf club head according to the first aspect of the present invention, the high specific gravity material 2 is adopted as the dissimilar material 2, and the hole 6 or the concave portion 9 is located at a position above the sole of the head body member 4 and substantially parallel to the sole. The present invention relates to a method for manufacturing a golf club head provided in a state where the golf club head is provided.

In the method of manufacturing a golf club head according to the first aspect, the head main body member 4 is forged to join the head main body member 4 and the dissimilar material 2, and the head main body 1 is formed into a desired head main body shape. And a method of manufacturing a golf club head.

A method of manufacturing a golf club head in which a dissimilar material 2 is joined to a head body 1, wherein a groove 5 is provided in a head body member 4 before forming an outer shape of the head body 1 and the groove 5 is formed. And a method of manufacturing a golf club head, wherein the head body member 4 and the heterogeneous material 2 are joined together and the head body member 4 is formed into a desired head body shape. Things.

In the method of manufacturing a golf club head according to the present invention, the head main body member 4 is forged to join the head main body member 4 and the dissimilar material 2, and the head main body 1 is formed into a desired head main body shape. And a method of manufacturing a golf club head.

Further, in the method for manufacturing a golf club head according to the fifth aspect, the head body member 4 and the dissimilar material 2 are welded and joined, and the head body 1 is formed into a desired head body shape. The present invention relates to a method of manufacturing a golf club head.

[0014]

Before the outer shape of the head body 1 is formed, holes 6, recesses 9 or grooves 5 are provided in the head body member 4, and different materials 2 are filled in the holes 6, recesses 9 or grooves 5. After that, the head body member 4 and the dissimilar material 2
And the head main body member 4 is formed into a desired head main body shape. Therefore, the completed head main body 1 is machined to form the hole 6, the concave portion 9 or the groove 5, and the hole 6, the concave portion 9 or the Compared to the method of disposing and fixing the dissimilar material 2 in the groove 5, a manufacturing method capable of mass-producing a golf club head with high accuracy and high quality is provided.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for manufacturing an iron club head according to one embodiment of the present invention will be described below with reference to the drawings.

In this embodiment, as shown in FIG. 3, a round bar-shaped base material 8 (for example, soft iron) is forged to form a head body member 4 having a predetermined shape, and then, as shown in FIG. A hole 6 is formed above the sole of the head body member 4 in a state substantially parallel to the sole. The hole 6 has a specific gravity larger than that of soft iron and has an appropriate softness, for example, copper, lead, tungsten or the like. The rod-shaped high specific gravity material 2 such as an alloy of the above is inserted from both sides, and then the lid 7 is inserted and welded,
In this state, a finish forging process (forming press) is performed, followed by a finishing process to obtain a final product shown in FIG.

The position, shape, number and the like of the holes 6 for inserting the dissimilar materials 2 of the head body member 4 are appropriately set according to the purpose. In addition, for the dissimilar material 2, depending on the purpose, for example, in order to reduce the center of gravity as described above, the material 2 having a high specific gravity is used.
May be used. For the purpose of increasing the repulsion, for example, titanium or the like may be embedded in the face portion.

Reference numeral 3 in the figure denotes a neck portion.

In this embodiment, as described above, before forming the outer shape of the head main body 1, the holes 6 are formed in the head main body member 4.
The high specific gravity material 2 is inserted into the hole 6, and then the head main body member 4 is forged into a desired head main body shape. Therefore, the high specific gravity material 2 and the head main body member 4 are both pressed and crushed. The high-specific-gravity material 2 is also rolled into the face portion and enters, so that the head main body 1 on which the high-specific-gravity material 2 is securely attached without any gap is obtained (see FIG. 2).
The high specific gravity material 2 is fixed to the head main body 1 without special fixing means, so that mass productivity is improved and the high specific gravity material 2 is improved.
The head body 1 with high precision provided with no gap is manufactured.

Further, in this embodiment, since the high specific gravity material 2 is not attached to the outer surface of the head main body member 4, the high specific gravity material 2 can be removed as much as possible by an impact applied when the club is used. It is a club that is prevented and has a good appearance, and furthermore, it is not necessary to drill holes so as not to deform the shape of the head main body unlike the conventional method, so workability is improved and mass production It will excel in sex. Then, by adopting the high specific gravity material 2 of an appropriate material, size and number, an arbitrary low center of gravity club can be easily provided.

FIGS. 5, 6, and 7 show another embodiment. After the step of FIG. 3 described above, the head body member 4 is positioned above the sole and substantially parallel to the sole as shown in FIG. To form a concave portion 9 (this concave portion 9 may be formed at the stage of cutting or forging processing in FIG. 3). continue,
As shown in FIG. 6, a suitable number of round bar-shaped high-specific-gravity materials 2 formed in the same predetermined length as shown in FIG. 6 are provided in the recesses 9 (FIG. 6 shows three high-specific-gravity materials 2 provided). Subsequently, a cover material 10 is provided in the recess 9 and welded. In this state, a finish forging process (forming press) is performed, and finally a finish process is performed to obtain a final product.

Since the high specific gravity material 2 is formed of a plurality of short members, for example, by setting the weight to 10 g, it is possible to finely adjust the weight.

Further, since the concave portion 9 is formed to be bent to the front end side of the head main body member 4, a desired weight balance can be realized depending on whether or not the high specific gravity material 2 is provided at the bent front end. When the concave portion 9 is bent to the base end side of the head main body member 4, a desired weight balance can be more easily realized from the above-mentioned purpose.

The rest is the same as in the previous embodiment.

FIG. 8 shows a putter club head manufactured according to the present invention.
A method in which a different material 2 (high specific gravity material) is inserted into the groove 5, the head main body member 4 and the different material 2 are mounted, and then a finish forging process is performed to manufacture the putter club head having a desired weight balance. Is obtained. The operation and effect of this alternative embodiment are similar to those of the iron club head described above.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a head manufactured by a method for manufacturing a golf club head according to one embodiment of the present invention.

FIG. 2 is a sectional view of FIG.

FIG. 3 is an explanatory view showing a manufacturing process of the golf club head according to one embodiment of the present invention.

FIG. 4 is an explanatory view showing a manufacturing process of the golf club head according to one embodiment of the present invention.

FIG. 5 is an explanatory view showing a manufacturing process of a golf club head according to another embodiment of the present invention.

FIG. 6 is an explanatory view showing a manufacturing process of a golf club head according to another embodiment of the present invention.

FIG. 7 is an explanatory view showing a manufacturing process of a golf club head according to another embodiment of the present invention.

FIG. 8 is a front view of a head manufactured by a method of manufacturing a golf club head (putter club head) according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Head main body 2 High specific gravity material, heterogeneous material 4 Head main body member 5 Groove 6 Hole 9 Depression

Claims (6)

[Claims] 1. A method of manufacturing a golf club head in which a different material is joined to a head body, wherein a hole or a concave portion is provided in a head body member before forming an outer shape of the head body, and a heterogeneous material is formed in the hole or the concave portion. A method of manufacturing a golf club head, comprising disposing a material, thereafter joining the head body member and a dissimilar material, and forming the head body member into a desired head body shape. 2. The method for manufacturing a golf club head according to claim 1, wherein a high specific gravity material is used as the dissimilar material.
A method of manufacturing a golf club head, wherein a hole or a concave portion is provided at a position above a sole of a head body member so as to be substantially parallel to the sole. 3. The golf club head manufacturing method according to claim 1, wherein the head main body member is forged to join the head main body member and a different material, and the head main body is formed into a desired head main body shape. Of manufacturing a golf club head. 4. A method of manufacturing a golf club head in which a dissimilar material is bonded to a head body, wherein a groove is provided in a head body member and a dissimilar material is disposed in the groove before forming an outer shape of the head body. Then, a method of manufacturing a golf club head, comprising joining the head body member to a different material and forming the head body member into a desired head body shape. 5. The golf club head manufacturing method according to claim 4, wherein the head main body member is forged to join the head main body member and a dissimilar material, and the head main body is formed into a desired head main body shape. Of manufacturing a golf club head. 6. The golf club manufacturing method according to claim 5, wherein the head main body member and the dissimilar material are welded and joined, and the head main body is formed in a desired head main body shape. Head manufacturing method.