Site News  |   Monitor Keywords  |   Monitor Archive  |   Organizer  |   Account Info  |

Golf club head for an iron

Golf club head for an iron description/claims

1. Field of the Invention

This invention relates to a golf club head, more particularly to a golf club head that can be connected fixedly to a bottom end of a shaft of an iron.

2. Description of the Related Art

Golf clubs are grouped into three categories according to their functions: (1) Woods for long shots, (2) Irons for middle distance shots, and (3) Putters for aiming a golf ball into a hole. The structure of each golf club generally includes a shaft, and a head fixed to a bottom end of the shaft and having a striking plate for striking a golf ball.

Referring to FIGS. 1 and 2, a conventional golf club head 1 for an iron includes a back part 11 having a cavity 112 and a peripheral end face 111, a striking plate 12 covering the back part 11 and having a back face 121 abutting against the peripheral end face 111, a vibration-absorbing element 13 disposed in the cavity 112, and a brazing filler metal 14 to join the striking plate 12 and the back part 11.

To assemble the conventional golf club head 1, the striking plate 12 is first placed over the back part 11 so that the back face 121 abuts against the peripheral end face 111, after which the striking plate 12 and the back part 11 are pressed together. The brazing filler metal 14 is then put around a joint between the end face 111 and the back face 121, and is heated so as to be formed into a molten material. The molten brazing filler metal 14 flows into a clearance between the end face 111 and the back face 121 through a capillary action. When the molten brazing filler metal 14 solidifies, the striking plate 12 is welded fixedly to the back part 11.

Since the end face 111 and the back face 121 have flat surfaces, when they abut against each other, the clearance therebetween is relatively small. Hence, during brazing, only a minimal amount of the molten brazing filler metal 14 seeps into the clearance between the end face 111 and the back face 121, thereby resulting in the formation of an incomplete brazing layer and a weak brazing connection between the striking plate 12 and the back part 11. Further, after going through several ball-striking actions, the incomplete brazing layer may crack and thereby lead to separation of the striking plate 12 from the back part 11. Because of these reasons, during brazing, an operator must wait a considerable time so as to allow the brazing filler metal 14 to fill completely the clearance between the end face 111 and the back face 121. Even so, the ideal brazing connection is difficult to obtain. Moreover, the operator usually applies a large amount of the brazing filler metal 14 around the joint between the end face 111 and the back face 121 in an effort to increase the amount of the brazing filler metal 14 that seeps into the clearance. However, when the brazing filler metal 14 is cooled and solidified, the brazing filler metal 14 becomes a protruding body, which affects not only the appearance of the golf club head 1, but also the effect of striking a golf ball, so that another finishing process has to be performed.

Therefore, the object of the present invention is to provide a golf club head for an iron that is capable of overcoming the aforementioned drawbacks of the prior art.

According to this invention, a golf club head for an iron comprises a back part, a striking plate covering the back part, and a fixing unit to join the striking plate and the back part. The fixing unit has a looped groove provided between the striking plate and the back part, and a welding material interconnecting the striking plate and the back part and filled in the looped groove.

Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiments of the invention, with reference to the accompanying drawings, in which:

FIG. 1 is an exploded perspective view of a conventional golf club head for an iron;

FIG. 2 is an assembled sectional view of the conventional golf club head of FIG. 1;

FIG. 3 is an exploded perspective view of the first preferred embodiment of a golf club head for an iron according to the present invention;

FIG. 4 is an assembled sectional view of the first preferred embodiment;

FIG. 5 is an assembled sectional view of a golf club head for an iron according to the second preferred embodiment of the present invention; and

FIG. 6 is an assembled sectional view of a golf club head for an iron according to the third preferred embodiment of the present invention.

• Provisional Patent
• Utility Patent

• What Is a Patent?
• What Is a Trademark or Servicemark?
• What Is a Copyright?
• Patent Laws