US20070155534A1

US20070155534A1 - Golf club head with dual weighted parties having fixing structure

Info

Publication number: US20070155534A1
Application number: US11/643,655
Authority: US
Inventors: Chia-Jen Tsai; Te-Fu Hsiao
Original assignee: Advanced International Multitech Co Ltd
Current assignee: Advanced International Multitech Co Ltd
Priority date: 2005-12-29
Filing date: 2006-12-22
Publication date: 2007-07-05
Also published as: JP3130167U; TWM292401U

Abstract

A golf club head with dual weighted parties having fixing structure is provided, which includes a body, a first weighted part having a fastening portion, and a second weighted part with two fixing portions on side of two ends and a joining portion at the bottom part. The body has a cavity for the first weighted part to be fastened and a snapping portion at the bottom of one side surface. The second weighted part uses the fixing portion and the joining portion to respectively snap with the snapping portion of the body and embed in the fastening portion of the first weighted part, such that the first weighted part and the second weighted part are fixed in the body, thus, the golf club head achieves preferred weighting effect and damping function.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This non-provisional application claims priority under 35 U.S.C. §119(a) on Patent Application No(s). 094222985 filed in Taiwan, R.O.C. on Dec. 29, 2006, the entire contents of which are hereby incorporated by reference.

BACKGROUND OF THE INVENTION

1. Field of Invention
The present invention relates to a golf club head, and more particularly, to a golf club head for providing an optimal vibration damping effect and having a structure of fixing weighted parties.
2. Related Art
In order to enable golf club heads to achieve the most preferred striking effect, weighted structures are generally disposed at the bottom of the club head to make the gravity center of the club head move downwards, which increases the striker's stability in swinging, helps the striker to effectively strike the ball, so as to increase the flying distance of the ball and make the ball fall at a predetermined position. Therefore, the design of the weighted structure for the club is an extremely important factor for determining the quality of the golf club and the striking score of the striker.
Recently, the commonly used club head has an arc-shaped club head body fixed with the club holder, and the club head body is hollow and has a striking face at the front end portion, which is a ramp. There are two types of weighted structures: the first one is that a weighted block made of a material heavier than that of the club head body is fastened on the back end of the club head body; and the other one is that the weighted block is inlaid on the bottom surface of the club head body.
Furthermore, as for the above weighted structure of the club head, the weighted block is fastened on the back end or on the bottom surface of the club head from the exterior, and only the weighted block made of a single material is used. The vibration damping capability of the weighted block made of a single material is not desired, and it is also impossible to provide sufficient vibration damping effect to absorb the vibration generated when striking the ball. On the other hand, the fastening manner generally includes screw locking, adhering, or welding. When striking, the club is affected by the counteracting force, and vibration occurs for the club head body, and due to the different materials used by the weighted block and the club head body, their conductivities for the vibration wave are different, and thus, when the vibration wave passes between the weighted block and the club head body, a shearing force is generated on the joining part there-between. Therefore, after the club has been used for a long time, the weighted block is easily loosen and fallen off from the club head body, so that the club is damaged, and the service life of the club is reduced.
Therefore, the conventional weighted structure of the golf club head is directly fastened on the back end or lightly inlaid on the bottom of the club head body, which has the disadvantage that the weighted effect for the club head is limited, so the gravity center cannot be effectively moved downwards, and meanwhile, the optimal striking position is limited in a relatively small scope. Therefore, it is an important issue for research and development in this field to redesign a golf club head having a structure of fixing weight body and a two-stacked weighted part structure, for providing preferred vibration damping function for the user.

SUMMARY OF THE INVENTION

In view of the above problems of the conventional art, the present invention provides a golf club head with dual weighted parties having fixing structure, for solving the problems of the weighted structure in the conventional golf club head that the weighted effect is limited, and the vibration damping effect cannot be enhanced.
In order to achieve the above object, the present invention provides a golf club head with dual weighted parties having fixing structure, which comprises a body, a first weighted part having a fastening portion, and a second weighted part having a fixing portion on each end and a joining portion at the bottom part. The body has a cavity for fastening the first weighted part therein and a snapping portion at the bottom of one side surface. The second weighted part uses the fixing portion and the joining portion to respectively snap with the snapping portion of the body and embed in the fastening portion of the first weighted part, such that the first weighted part and the second weighted part are fixed in the body, and thereby finishing the fabricating of the golf club head with dual weighted parties having fixing structure of the present invention.
By implementing the present invention, at least the following functions are achieved.
First, the present invention relates to a golf club head with dual weighted parties having fixing structure, and by implementing the golf club head with dual weighted parties having fixing structure, the weighted structure made of a variety of materials is provided, thereby improving the vibration damping function.
Second, the present invention relates to a golf club head with dual weighted parties having fixing structure, and by implementing the golf club head with dual weighted parties having fixing structure, a specific style of logo or a specific company trademark is positioned between the dual weighted parties, for distinctly enhancing the quality of the golf club head, and providing a unique diversity, which also has an anti-copying effect.
Third, the present invention relates to a golf club head with dual weighted parties having fixing structure, and by implementing the golf club head with dual weighted parties having fixing structure, an upper weighted part with a different appearance and color can be fabricated to cater to customers' requirements, so as to provide a variety of selections for the customers and provide the uniqueness of the individual golf club head.
In order to further understand the objectives, construction features, and functions of the present invention, the detailed descriptions are given bellow through the relevant embodiments and accompanying drawings.
Further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will become more fully understood from the detailed description given herein below for illustration only, which thus is not limitative of the present invention, and wherein:

FIG. 1 is a schematic view of a golf club head with dual weighted parties having fixing structure according to a preferred embodiment of the present invention;

FIG. 2 is a schematic cross-sectional front view of the golf club head with dual weighted parties having fixing structure of FIG. 1 according to the preferred embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of the golf club head with dual weighted parties having fixing structure of FIG. 2 according to the preferred embodiment of the present invention;

FIG. 4 is a schematic view of another configuration of the golf club head with dual weighted parties having fixing structure of the present invention;

FIG. 5 is a schematic cross-sectional front view of another configuration of the golf club head with dual weighted parties having fixing structure of FIG. 4; and

FIG. 6 is a schematic cross-sectional view of another configuration of the golf club head with dual weighted parties having fixing structure of FIG. 5.

DETAILED DESCRIPTION OF THE INVENTION

Firstly, referring to FIGS. 1, 2, and 3, the present invention provides a golf club head with dual weighted parties having fixing structure. The golf club head 1 includes a body 10, a first weighted part 20, and a second weighted part 30. Furthermore, the body 10 of the golf club head 1 has a step-shaped cavity 11 and a snapping portion 12 formed at the bottom of one side surface. The first weighted part 20 has a protruded fastening portion 21 with a width being smaller than that of the first weighted part 20. The fastening portion 21 forms a step-like configuration with the first weighted part 20 that is fastened in the cavity 11 of the body 10. The second weighted part 30 has two fixing portions 31 on side of its two ends and has a depressed joining portion 32 at the bottom part. The fixing portions 31 are snapped into the snapping portion 12 of the body 10, and the joining portion 32 is embedded in the fastening portion 21 of the first weighted part 20, so that the joining portion 32 of the second weighted part 30 wraps the fastening portion 21 of the first weighted part 20, and thereby fixing both the first weighted part 20 and the second weighted part 30 in the body 10 of the golf club head 1.
Moreover, referring to FIGS. 4, 5, and 6, the present invention provides a golf club head with dual weighted parties having fixing structure. Another configuration of the golf club head 1′ similarly includes a body 10, a first weighted part 20, and a second weighted part 30. Furthermore, the body 10 of the golf club head 1′ has a step-shaped cavity 11 and a snapping portion 12 formed at the bottom of one side surface. The first weighted part 20 has a protruded fastening portion 21 with a width being smaller than that of the first weighted part 20. The fastening portion 21 forms a step-like configuration with the first weighted part 20 and further has a groove 211, and the first weighted part 20 is fastened in the cavity 11 of the body 10. The second weighted part 30 has two fixing portions 31 on side of its two ends and has a depressed joining portion 32 at the bottom part, and further has a protruded rib 321. When the fixing portions 31 are snapped into the snapping portion 12 of the body 10, the joining portion 32 and the rib 321 are respectively embedded and inserted in the fastening portion 21 and the groove 211 of the first weighted part 20, so as to fix both the first weighted part 20 and the second weighted part 30 in the body 10 of the golf club head 1, and thus the joining portion 32 of the second weighted part 30 wraps the fastening portion 21 of the first weighted part 20.
The present invention provides a golf club head with dual weighted parties having fixing structure. Referring to FIGS. 2 and 5, the second weighted part 30 of the golf club head 1, 1′ is approximately V-shaped, and the fixing portion 31 of the second weighted part 30 is approximately L-shaped. Furthermore, the material of the first weighted part 20 of the golf club head 1, 1′ is a high specific gravity material, and the material of the second weighted part 30 of the golf club head 1, 1′ is a low specific gravity material. In addition, the high specific gravity material is a metal alloy or a composite material of metal and plasticized material; and the low specific gravity material is a polymer material or a plastic material.
The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.

Claims

1. A golf club head with dual weighted parties having fixing structure, comprising:

a body, having a cavity and a snapping portion formed at bottom of one side surface of said body;

a first weighted part, with a fastening portion, and being fastened in said cavity of said body; and

a second weighted part, with two fixing portions on side of two ends and a joining portion at bottom part of said second weighted part, wherein said fixing portions are snapped into said snapping portion of said body, said joining portion is embedded in said fastening portion of said first weighted part, and thereby fixing said first weighted part and said second weighted part in said body.

2. The golf club head with dual weighted parties having fixing structure as claimed in claim 1, wherein width of said fastening portion is smaller than that of said first weighted part, and said fastening portion forms a step-like configuration with said first weighted part.

3. The golf club head with dual weighted parties having fixing structure as claimed in claim 1, wherein said fastening portion of said first weighted part is protruded to be embodied into depressed portion of said joining portion of said second weighted part, so that said joining portion of said second weighted part wraps said fastening portion of said first weighted part.

4. The golf club head with dual weighted parties having fixing structure as claimed in claim 1, wherein said second weighted part forms approximately V-shaped.

5. The golf club head with dual weighted parties having fixing structure as claimed in claim 1, wherein said joining portion at bottom part of said second weighted part further has a protruded rib, said fastening portion of said first weighted part further has a groove for said rib to be inserted and fixed, so as to fix said second weighted part with said first weighted part, such that said joining portion of said second weighted part wraps said fastening portion of said first weighted part.

6. The golf club head with dual weighted parties having fixing structure as claimed in claim 1, wherein each of said fixing portions of said second weighted part forms approximately L-shaped.

7. The golf club head with dual weighted parties having fixing structure as claimed in claim 1, wherein material of said first weighted part is a high specific gravity material.

8. The golf club head with dual weighted parties having fudg structure as claimed in claim 1, wherein material of said second weighted part is a low specific gravity material.

9. The golf club head with dual weighted parties having fixing structure as claimed in claim 7, wherein said high specific gravity material is a metal alloy or a composite material of metal and plasticized material.

10. The golf club head with dual weighted parties having fixing structure as claimed in claim 8, wherein said low specific gravity material is a polymer material or a plastic material.

11. The golf club head with dual weighted parties having fixing structure as claimed in claim 1, wherein said cavity and said snapping portion form a step-like configuration.