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10/29/09 - USPTO Class 473 |  10 views | #20090270199 | Prev - Next | About this Page  473 rss/xml feed  monitor keywords

Golf club head

USPTO Application #: 20090270199
Title: Golf club head
Abstract: A golf club head has a three-piece construction, including a front piece, an intermediate piece and a rear piece. The front and rear pieces are made of metal, while the intermediate piece is made of fiber-reinforced plastic, composite material or metal. The intermediate piece is jointed to the front and rear pieces by means of adhesives or welding. Bolts are provided in a lower portion of the rear piece to threadingly engage the front piece to securely fix all the pieces together to form the golf club head, which has a lowered gravity center and enhanced striking stability. (end of abstract)



Agent: Leong C Lei - Walnut Creek, CA, US
Inventors: YUNG-HSIUNG CHEN, YUNG-HSIUNG CHEN
USPTO Applicaton #: 20090270199 - Class: 473348 (USPTO)

Golf club head description/claims


The Patent Description & Claims data below is from USPTO Patent Application 20090270199, Golf club head.

Brief Patent Description - Full Patent Description - Patent Application Claims
  monitor keywords BACKGROUND OF THE INVENTION

(a) Technical Field of the Invention

The present invention relates to a golf club head, and in particular to a golf club head having lowered gravity center to enhance striking stability and performance of playing golf.

(b) Description of the Prior Art

Golf has been a very popular sports game for social relationship between people can be improved during the driving from one hole to another hole in the golf field. To have an excellent performance of playing golf, practice is the most important way. However, good and appropriate golf clubs also play an important role in playing the game. For different striking, different clubs may be selected. For example, for long distance driving, a wooden club is used. For a currently available wooden club, a club head is often made of metals or composite materials. FIG. 1 of the attached drawings shows a metal club head, designated at 1. The manufacturing of the metal club head 1 is first forming respectively a body 11 that has a top opening and a lid 12. The lid 12 is then mounted to the body 11 to close the top opening by welding. During the welding process, the lid 12 must be first retained to the body 11 by spot welding, and then a hard welding process can be carried out. This complicates the manufacturing process and often suffers undesired displacement of the lids 12, which leads to flaw products. Further to lower the gravity center of the club head 1, adjustment of weight must be carried out on the bottom or other portions of the club head 1. Thus, it is desired to provide a golf club head that can be manufactured with a simplified process, while effectively lowering the gravity center thereof at the same time.

SUMMARY OF THE INVENTION

The primary purpose of the present invention is to provide a golf club head, which, without adversely affecting the structural strength of a golf club head, enhances the efficiency of manufacturing of the golf club head, shortening the manufacturing time, and also lowers the gravity center of the golf club head to enhance striking stability and performance of golf playing.

To achieve the above objective, in accordance with the present invention, a golf club head is provided, comprising a three-piece construction, of which a front piece and a rear piece are made of metal, while an intermediate piece is made of fiber-reinforced plastic, composite material or metal. The intermediate piece is jointed to the front and rear pieces by means of adhesives or welding. Bolts are provided in a lower portion of the rear piece to threadingly engage the front piece to securely fix all the pieces together to form the golf club head, which has a lowered gravity center and enhanced striking stability.

The foregoing object and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.

Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.

BRIEF DESCRIPTION OF THE DRAWINGS

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

FIG. 2 is an exploded view of a golf club head constructed in accordance with an embodiment of the present invention;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is an exploded view of a golf club head constructed in accordance with another embodiment of the present invention; and

FIG. 5 is a top view of FIG. 4.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

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Brief Patent Description - Full Patent Description - Patent Application Claims

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Golf club head with three-dimensional alignment aid and method of manufacture
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Golf ball material and golf ball
Industry Class:
Games using tangible projectile

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