Weight adjustable golf club head

Abstract

A weight adjustable golf club head is provided. The club head has a trough at a lower part of the club head's back and a weight positioned inside the trough. The trough is arranged to follow the curvature of the club head's bottom. The trough has a tapered mouth along the surface of the club head and a base. There is an insertion hole at a position along the trough. The weight could be inserted into the trough through the insertion hole, and then slid along the trough. The weight contains a seat, a bolt, and a loading ring. The seat has a locking rim and the positioning rim which are inside the trough's base and mouth respectively when the weight is slid into the trough. The seat's body and the locking rim have a number of breaks so that the locking rim could be stretched. When the bolt is screwed into or out of the seat, the locking rim would be stretched or retracted, so that the weight could be locked or un-locked in the trough. The loading ring is put around the seat and could be made of various types of material. By adjusting the position of the weight along the trough and changing the loading ring, the club head's center of gravity could be adjusted to suit a golfer's specific stance, habit, and the specific trajectory required.

Description

BACKGROUND OF THE INVENTION [0001] (a) Technical Field of the Invention [0002] The present invention generally relates to a golf club head, and more particularly to a golf club head whose center of gravity is adjustable. [0003] (b) Description of the Prior Art [0004] In recent years, as the manufacturing technologies for golf club heads are continuously advancing, large varieties of club heads of various forms and specifications are proposed. The only purpose of all these new club head designs is nothing but to help golfers to hit the balls farther and more accurately. However, a golfer's performance still has a very large part related to the golfer's stance and habit. [0005] Therefore, so-called “weight tunable club heads” are developed and claimed to be able to adjust the club head's center of gravity to best suit a golfer's stance and habit. These “weight tunable club heads” generally have a number of fixed positions arranged on the club head and weights could be inserted or take...

AI Technical Summary

Benefits of technology

[0006] The primary purpose of the present invention is to obviate the shortcomings of conventional “weight tunable club heads,” the club head according to the present invention has a trough at the club head's back. A weight could be placed in and slid along the trough. The weight is an assembly containing a seat, a bolt, and a loading ring. When the weight is moved to a position, the bolt is screwed into the seat so as to lock the weight to that position. The club head's center of gravity is thereby adjusted. The club head according to the present invention is very easy to use as, when changing the weight's position, only the bolt has to be screwed loosed and the seat does not have to be taken out.

[0007] After a user use a club according to the present invention to hit a golf ball, based on the ball's trajectory, flying angle, and point of fall, the user could adjust the club head's center of gravity accordingly. To adjust the club head's center of gravity, the bolt is screwed loosed, and the weight is moved freely along the trough to a position so that the club head's center of gravity best suits the user's stance and habit. Then, the bolt is screwed in again to fixedly lock the weight to that specific position. In this process, if required, the loading ring could also be replaced to change the weight, making the adjustment of the club head's center of gravity and the choice of trajectories even more flexible.

Problems solved by technology

As can be imagined, these approaches based on fixed arrangements could only offer limited choices for positioning the center of gravity and trajectories, and cannot fit the needs of golfers of various skill levels.

In addition, changing the weights of these “weight tunable club heads” is not convenient, and usually cannot be conducted easily based on the previous ball's point of fall.

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