US20050143189A1

US20050143189A1 - Golf club head

Info

Publication number: US20050143189A1
Application number: US10/745,615
Authority: US
Inventors: Lydia Lai; Arnold Lai; Miller Lee
Original assignee: PRECISION SPORTS TECHNOLOGY CORP
Current assignee: PRECISION SPORTS TECHNOLOGY CORP
Priority date: 2003-12-29
Filing date: 2003-12-29
Publication date: 2005-06-30

Abstract

An improved golf club head includes a body, a balance weight and an upper lid. The body has a hitting surface and a recess formed on an upper side of the rear end thereof. The balance weight is located in the recess. The upper lid is made from a composite material or fibers and has a curvature matching the upper side of the golf club head to anchor the balance weight in an integrated manner. Thus the weight of the upper side of golf club head is reduced. The upper lid makes the club head more appealing and can generate a crispy sound when hitting golf ball. A higher trajectory track may be generated when the golf ball is hit. And more versatile appearances may be formed.

Description

FIELD OF THE INVENTION

The present invention relates to an improved golf club head and particularly to a golf club head that has a reduced weight on the upper side, forms a higher trajectory track for the hitting golf ball, is easier to strike, looks more appealing and provides more versatile appearances, and generates a crispy sound when the golf ball is hit.

BACKGROUND OF THE INVENTION

With increasingly rising of people's living standard, golf population also grows continuously. Playing golf has to use various types and numbers of golf club heads. The golf ball trajectory track is a big concern for golfers. Many golf club heads are made in an integrated manner. Such types of heads often are heavier and move the gravity center forwards and make swinging of golf club more difficult. These days some golf club heads are made with a hitting panel of a smaller weight. But these types of heads have difficulty to lower the gravity center. As a result, striking stability is difficult to improve. To meet the requirement of making the gravity center of the golf club head lower and backward, a balance weight has to be added on the bottom plate. Such an approach makes the head heavier and swinging of the golf club more difficult. In the golf game, a good golf club and club head is important and they could determine win or loss. It has to match the swinging posture and habit of the user and to be adjusted to get the optimum gravity center location so that swinging of the golf club is smooth and hitting the sweet spot is easier. Due to every person has a different swinging posture and habit, at present the gravity center of the club head is mostly located in the center. Hence a small deviation of swinging could result in loss of the standard hitting point and miss the sweet spot. To match different swinging postures and habits, reducing the weight of the club head is necessary. It is usually accomplished by adding a balance weight on the hitting side to adjust the gravity center. Such a structure is difficult to fabricate. Once the location of the gravity center is set, it cannot be changed. To change the location of the gravity center, users have to buy a new club head. It is costly and not very practical. In short, the present club heads generally are difficult to reduce the weight and results difficulty in swinging of the golf club. The appearance of the club head is plain and not versatile. It also cannot generate a crisp sound when the golf ball is hit.

SUMMARY OF THE INVENTION

In view of the aforesaid disadvantages, the present invention aims to provide an improved golf club head.
The primary object of the invention is to reduce the weight of upper side of the club head and generate a crisp sound when the golf ball is hit. It mainly has a balance weight disposed in a matching recess formed on an upper side of the club head. An upper lid made from a composite material or fibers with a curvature matching of the upper side of the club head is bonded thereon in an integrated manner to anchor the balance weight.
The club head according to the invention includes a body, a balance weight and an upper lid. The body is integrally made from titanium by forging. It has a hitting surface on the front side and a recess formed on the upper side of a rear end thereof. The balance weight is located in the recess and covered by the upper lid.
The balance weight mates the recess and has apertures formed thereon to reduce the weight of the club head (or may be added to the weight of other areas to adjust the gravity center location).
The upper lid is made from a composite material or fibers with a curvature matching the upper side of the club head.
The foregoing, as well as additional objects, features and advantages of the invention will be more readily apparent from the following detailed description, which proceeds with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded view of the present invention.
FIG. 2A is a perspective view of the present invention
FIG. 2B is a cross section taken on line A-A in FIG. 2A.
FIG. 3 is a perspective view of a second embodiment of the present invention.
FIG. 4 is a perspective view of a third embodiment of the present invention.
FIG. 5 is a perspective view of a fourth embodiment of the present invention.
FIG. 6 is a perspective view of a fifth embodiment of the present invention.
FIG. 7 is a perspective view of a sixth embodiment of the present invention.
FIG. 8 is a perspective view of a seventh embodiment of the present invention.
FIG. 9 is a perspective view of a eighth embodiment of the present invention.
FIG. 10 is a perspective view of a ninth embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Please refer to FIG. 1, the golf club head according to the invention includes:

- a body 1 made from titanium by forging in an integrated manner. It has a neck 10 on a lateral side with an insert hole 100 to couple with a shaft 4. The body 1 has a hitting face 11 on the front side and a recess 13 formed on an upper side 12 at the rear end. The recess 13 holds a balance weight 2 which is 2 b and 2 c have respectively apertures 20 b of the same size or apertures 21 c of different sizes formed thereon.

Refer to FIGS. 6 and 7 for yet another two embodiments of the present invention. It is constructed substantially like the embodiment shown in FIG. 1. However, the balance weights 2 d and 2 e have respectively elongated troughs 20 d and arched troughs 20 e formed thereon.
Refer to FIGS. 8 and 9 for still another two embodiments of the present invention. It is constructed substantially like the embodiment shown in FIG. 1. However, the balance weights 2 f and 2 g have respectively upper arched troughs 20 f and lower arched troughs 20 g formed thereon.
Refer to FIG. 10 for another embodiment of the present invention. It is constructed substantially like the embodiment shown in FIG. 1. However, the balance weight 2 h has transverse troughs 20 h formed thereon.
By means of the constructions set forth above, the invention can provide the following advantages:

- 1. A balance weight with apertures or grooves of different shapes may be mounted on the upper side of the club head, and covered by an upper lid to reduce the weight of the upper side of the club head. It can be adapted to different swinging postures and habits of golfers. And it can generate a crisp sound when hitting gold ball.
- 2. The invention has a wide range of applicability and can a plate of an uniform thickness. The balance weight 2 has a shape mating the recess 13 and has apertures 20 formed thereon. There is an upper lid 3 covering the balance weight 2 from above. The upper lid 3 is made from a composite material or fibers. The upper lid 3 has an upper surface 30 which forms a curvature matching the upper side 12 of the body 1 and has a shape mating the recess 13. The upper lid 2 is located above the balance weight 2 and compressed to become integrated therewith.

For assembly (referring to FIG. 2A), the balance weight 2 is placed in the recess 13 on the upper side 12 of the body 1. Then dispose the upper lid 3 thereon to anchor the balance weight 2 on the upper side 12 of the body 1 (as shown in FIG. 2B). Thus the weight at the upper side of the body 1 is reduced. And the location of the gravity center may be adjusted. As the upper lid 3 is made from a composite material or fibers, it makes the club head more appealing and versatile. It also can generate a crispy sound when hitting golf ball.
Refer to FIG. 3 for a second embodiment of the present invention. It is constructed substantially like the embodiment shown in FIG. 1. The difference is that the balance weight 2 a has a flat surface.
Refer to FIGS. 4 and 5 for another two embodiments of the present invention. It is constructed substantially like the embodiment shown in FIG. 1. However, the balance weights uniform fabrication of the club head. By forming apertures and grooves of different shapes on the balance weight, desired results may be achieved. Manufacturing time and cost may also be reduced.

Claims

1. A golf club head, comprising:

a body having a hitting face on a front side and a recess on an upper side of a rear end thereof;

a balance weight being a flat plate located in the recess and having apertures formed thereon the balance weight extending in a direction to intersect the hitting face; and

an upper lid covering and bonding the balance weight in an integrated manner to anchor the balance weight such that the weight of the upper side of the golf club head is reduced, and appeal of the golf club head is enhanced by the upper lid and a crisp sound generated when hitting a golf ball.

2. The golf club head of claim 1, wherein the upper lid is made from a composite material or fibers and has a curvature matching the upper side of the golf club head.

3. (canceled)

4. The club head of claim 1, wherein the apertures on the balance weight have a same diameter.

5. The golf club head of claim 1, wherein the apertures on the balance weight have different diameters.

6. The golf club head of claim 1, wherein the balance weight has elongated troughs.

7. The golf club head of claim 1, wherein the balance weight has arched troughs.

8. The golf club head of claim 1, wherein the balance weight has upper arched troughs.

9. The golf club head of claim 1, wherein the balance weight has lower arched troughs.

10. The golf club head of claim 1, wherein the balance weight has transverse troughs.