JP3013980U - Golf club head - Google Patents

Abstract

(57) [Abstract] [Object] The present invention relates to a golf club head, and an object thereof is to realize a golf club head having a stable structure and high accuracy. A front member 10 includes a front member 10 and a rear member 20, and the front member 10 includes a face portion 11, an outer peripheral wall 12 extending from an outer periphery of the face portion 11 to a rear portion, and a neck provided at one end on the back side of the face portion. The part 13 is integrally formed by hot forging using a metal, and the neck part 13 is formed with a shaft hole 14, and the outer peripheral wall of the rear member 20 has the same shape as the outer peripheral wall of the front member. Also, the front member 10 and the rear member 20 are formed in a concave shape having a bulge at the rear.
Is configured so that the end faces of the outer peripheral wall face each other and are joined together.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a golf club head.

[0002]

[Prior art]

 Examples of conventional golf club heads manufactured by forging include those disclosed in JP-B-63-17490, JP-A-5-15620, JP-A-5-317466, and JP-A-5-317467. can give. These heads are assembled in about 2-3 parts, the face part is made up of only one part, and the back part is made up of 1-2 parts. The joining line extends almost to the neck line of the head.

[0003]

[Problems to be solved by the device]

 In the club manufactured by the above-mentioned conventional forging, since the joint line between the face portion and the back portion extends to the neck portion, the structure of the neck portion is weakened and the position of the shaft hole for inserting the shaft in the neck is reduced. There was a problem of lack of accuracy.

In view of the above conventional problems, an object of the present invention is to provide a golf club head having a stable structure and high accuracy.

[0005]

[Means for Solving the Problems]

 The head of a golf club of the present invention is a head of a golf club in which a front member and a rear member are combined and integrated, wherein the front member includes a face portion having a predetermined shape and the face portion. The outer peripheral wall extending from the outer periphery to the rear part and the neck part provided at one end on the back side of the face part are integrally formed by hot forging using metal, and one end of the shaft is inserted into the neck part to be joined. A shaft hole is formed, and the outer peripheral wall of the rear member is formed in the same shape as the outer peripheral wall of the front member, and the rear member is formed in a concave shape having a bulge in the rear member. Is characterized in that the end faces of the outer peripheral wall face each other and are joined together.

By adopting this structure, a golf club head having a stable structure and high accuracy can be obtained.

[0007]

[Action]

 According to the present invention, as shown in FIGS. 1 and 2, the structure is extremely stable because it comprises two members, a front member having a face portion and a neck portion, and a rear member joined to the rear portion of the front member. Also, the shaft hole is accurate because it is processed later.

[0008]

【Example】

 1 to 3 are views showing a first embodiment of the present invention, FIG. 1 is an exploded perspective view, FIG. 2 is a rear view of a front member in FIG. 1, and FIG. 3 is an assembled sectional view.

The present embodiment is composed of a front member 10 and a rear member 20 as shown in FIGS. The front member 10 includes a face portion 11 having a predetermined shape, an outer peripheral wall 12 extending from the outer periphery of the face portion 11 to the rear portion, and a neck portion 13 provided at one end on the back side of the face portion 11 such as Al or Ti. It is integrally formed by hot forging using the above metal. A shaft hole 14 for inserting and fixing one end of the shaft is formed in the neck portion 13 from the outside to the inside of the neck portion.

Further, the rear member 20 has an outer peripheral wall having the same shape as the front member 10, and is formed in a concave shape having a bulge at the rear portion, and the front member 10 and the outer peripheral wall have end faces that are adjacent to each other. Joined and integrated. The rear member 20 can be manufactured by forging or die casting using metal, and can also be manufactured by using non-metal material such as plastic or reinforced fiber resin.

In this embodiment configured as described above, since the outer peripheral wall 12 of the front member 10 extends rearward from the face portion 11, its structure has high rigidity and is solid. Further, since the rear part member 20 is joined to the outer peripheral wall 12 of the front part member 10 and is not directly connected to the face part 11, as shown in FIG. 7 (A), the face part 11 is deformed by a hitting force. However, the outer peripheral wall 12 does not deform. That is, it does not affect the joint surface 15 between the rear member 20 and the outer peripheral wall 12. Conversely, when the rear member 20 is directly connected to the face portion 11, as shown in FIG. 7B, the face portion 11 'is deformed by the hitting force and the joint surface 15' is also ruptured. easy.

Further, since the neck portion 13 is formed integrally with the face portion 11, it is possible to fix the face portion 11 with a jig and process the shaft hole 14, so that the shaft portion for the face portion 11 can be processed. The angle of the hole 14 can be processed accurately. In addition, in the conventional joining method by welding the neck portion, an error was likely to occur.

4 to 6 are views showing a second embodiment of the present invention, FIG. 4 is an exploded perspective view, FIG. 5 is a rear view of a front member in FIG. 4, and FIG. 6 is an assembled sectional view. .

This embodiment is substantially the same as the previous embodiment as shown in FIGS. 4 to 6, and is composed of a front member 30 and a rear member 40. In the rear member 40, two forged plates 41 and 42 are joined. On the other hand, in the front member 30, the inner end of the neck portion 31 is short, and the tube 32 is joined at the bottom portion thereof to form a long shaft hole 33 for inserting and fixing the shaft.

The front member 30 is thicker than the rear member 40, and a spigot portion 35 is formed on an end surface of the outer peripheral wall 34. The spigot portion 35 is fitted with the rear member 40. And then combined. The present embodiment configured in this way has the same working effect as the previous embodiment.

[0016]

[Effect of device]

 According to the present invention, a hollow structure composed of at least two members is suitable as an iron head, and since the front member has rigidity, a head having a stable structure can be obtained, and the neck part has a front portion. Since it is integrated with the member, it is possible to machine an accurate shaft hole. In addition, the rear member has the effect of being useful for weight balance, reinforcement, and shaping.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of the present invention.

FIG. 2 is a rear view of the front member according to the first embodiment of the present invention.

FIG. 3 is an assembled sectional view showing a first embodiment of the present invention.

FIG. 4 is an exploded perspective view showing a second embodiment of the present invention.

FIG. 5 is a rear view of the front member according to the second embodiment of the present invention.

FIG. 6 is an assembled sectional view showing a second embodiment of the present invention.

7A and 7B are views for explaining deformation of a face portion when hitting a ball, where FIG. 7A is an embodiment of the present invention and FIG. 7B is a conventional example.

[Explanation of symbols]

 10, 30 ... Front member 11, 11 '... Face portion 12, 34 ... Outer peripheral wall 13, 31 ... Neck portion 14, 33 ... Shaft hole 15, 15' ... Joining surface 20, 40 ... Rear member 32 ... Tube 35 ... Inlay part 41, 42 ... Forged plate

Claims (5)

[Scope of utility model registration request] 1. A golf club head comprising a front member and a rear member joined together to be integrated, wherein the front member has a face portion having a predetermined shape, and extends from the outer periphery of the face portion to the rear portion. The outer peripheral wall and the neck portion provided at one end on the back side of the face portion are integrally formed by hot forging using metal, and the neck portion is formed with a shaft hole into which one end of the shaft is inserted and coupled. The outer peripheral wall of the rear member has the same shape as the outer peripheral wall of the front member, and is formed in a concave shape having a bulge at the rear, and the front member and the rear member have end faces of the outer peripheral wall. A head of a golf club, characterized in that the heads are faced to each other and coupled. 2. The front member has a wall thickness thicker than that of the rear member, and a spigot portion is formed at an end portion of an outer peripheral wall of the front member, and the rear member is fitted to the spigot portion. The golf club head of claim 1, wherein the heads are joined together. 3. The golf club head according to claim 1, wherein the rear member is integrally formed by a wax casting method. 4. The head of a golf club according to claim 1, wherein the rear member is integrally formed by forging. 5. The golf club head according to claim 1, wherein the rear member is formed by joining two or more portions.