Golf club heads
A golf club head includes a golf club head body, a striking plate mounted to the golf club head body, a hosel mounted to a side of the golf club head body, and a wrapping layer. The hosel includes a reduced section for reducing a weight of a hosel side of the golf club head, thereby shifting a center of gravity of the golf club head outwardly and downwardly and increasing an inertial momentum of the golf club head. The wrapping layer is made of a light material and wrapped around the reduced section of the hosel for improving structural strength of the hosel and for absorbing shock generated as a result of striking a golf ball.
1. Field of the Invention
The present invention relates to golf club heads. In particular, the present invention relates to golf club heads the weights of which are reduced for adjusting the center of gravity of the golf club head.
2. Description of Related Art
U.S. Pat. No. 4,995,609 discloses an improvement in iron golf clubs in which a hollow hosel is provided to thereby reduce weight of hosel and bridge that can be redistributed to the blade to increase the momentum that can be imparted to a golf ball. In an embodiment of the U.S. Pat. No. 4,995,609, as illustrated in
The object of the present invention is to provide a golf club head including a neck or hosel having a reduced weight to shift the center of gravity of the golf club head outwardly and downwardly, thereby increasing the inertial momentum of the golf club head and improving the striking effect of the golf club head.
Another object of the present invention is to provide a golf club head with improved shock-absorbing capacity and strengthened structure.
A further object of the present invention is to provide a golf club head allowing a relatively wide adjusting range for the center of gravity.
SUMMARY OF THE INVENTIONTo achieve the aforementioned objects, the present invention provides a golf club head including a golf club head body, a striking plate mounted to the golf club head body, a hosel mounted to a side of the golf club head body, and a wrapping layer. The hosel includes a reduced section for reducing a weight of a hosel side of the golf club head, thereby shifting a center of gravity of the golf club head outwardly and downwardly and increasing an inertial momentum of the golf club head. The wrapping layer is made of a light material and wrapped around the reduced section of the hosel for improving structural strength of the hosel and for absorbing shock generated as a result of striking a golf ball.
The hosel further includes an engaging hole for engaging with a shaft. The hosel includes a top end distal to the golf club head body, and a flange is formed on the top end of the hosel for improving bonding stability between the engaging hole of the hosel and the shaft.
The reduced section of the hosel may include at least one protrusion or recessed portion on an outer periphery thereof for improving bonding stability between the reduced section and the wrapping layer.
In an embodiment of the invention, the reduced section of the hosel includes a conic annular groove in a bottom edge wall thereof for improving bonding stability between the reduced section and the wrapping layer.
In another embodiment of the invention, the reduced section of the hosel extends to a joint area between the hosel and the striking plate.
The hosel is formed by precision casting, casting, mechanical processing, press casting, forging, or injection molding. Alternatively, the hosel is engaged to the golf club head by means of section-by-section engagement. The wrapping layer wraps the reduced section of the hosel by heat pressing, press casting, or injection molding.
Other objects, advantages and novel features of this invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Preferred embodiments of the present invention are now to be described hereinafter in detail, in which the same reference numerals are used in the preferred embodiments for the same parts as those in the prior art to avoid redundant description.
Referring to
The hosel 12 includes an engaging hole 122 for engaging with an end of a shaft (not shown). The hosel 12 further includes a reduced section 121. In this embodiment, the reduced section 121 is distal to the club head body 12, and the engaging hole 122 is defined in the reduced section 121. The reduced section 122 reduces the weight and volume of the hosel 12, thereby reducing the weight of the golf club head 1 on the hosel side and relatively reducing the weight of the upper portion of the golf club head 1. Thus, the center of gravity 13 of the golf club head 1 is shifted outwardly and downwardly relative to the hosel 12. The inertial momentum of the golf club head 1 is increased, and the striking effect of the golf club head 1 (i.e., the flying distance of the golf ball) is improved. The hosel 12 may be integrally formed on a side of the golf club head body 10 by means of precision casting, casting, mechanical processing, press casting, forging, molding injection, etc. Alternatively, the hosel 12 is engaged to the golf club head 10 by means of section-by-section engagement.
Referring to
In conclusion, the center of gravity 13 of the golf club head 1 in accordance with the present invention is shifted outwardly and downwardly without adversely affecting the strength of the golf club head 1, which cannot be achieved by the prior art golf club heads. Shifting of the center of gravity 13 of the golf club head 1 is achieved by providing a reduced section 122 on the hosel 12. Further, a wrapping layer 20 is mounted on the reduced section 122 to further increase the inertial momentum and the adjustment range of the center of gravity and to further improve the striking effect, shock-absorbing capacity, structural strength.
While the principles of this invention have been disclosed in connection with specific embodiments, it should be understood by those skilled in the art that these descriptions are not intended to limit the scope of the invention, and that any modification and variation without departing the spirit of the invention is intended to be covered by the scope of this invention defined only by the appended claims.
Claims
1. A golf club head, comprising:
- a golf club head body;
- a striking plate mounted to the golf club head body;
- a hosel mounted to a side of the golf club head body, the hosel including a reduced section for reducing a weight of a hosel side of the golf club head, thereby shifting a center of gravity of the golf club head outwardly and downwardly and increasing an inertial momentum of the golf club head; and
- a wrapping layer made of a light material and wrapped around the reduced section of the hosel for improving structural strength of the hosel and for absorbing shock generated as a result of striking a golf ball.
2. The golf club head as claimed in claim 1, wherein the hosel further includes an engaging hole for engaging with a shaft.
3. The golf club head as claimed in claim 2, wherein the hosel includes a top end distal to the golf club head body, a flange being formed on the top end of the hosel for improving bonding stability between the engaging hole of the hosel and the shaft.
4. The golf club head as claimed in claim 1, wherein the reduced section of the hosel includes at least one protrusion on an outer periphery thereof for improving bonding stability between the reduced section and the wrapping layer.
5. The golf club head as claimed in claim 1, wherein the reduced section of the hosel includes at least one recessed portion on an outer periphery thereof for improving bonding stability between the reduced section and the wrapping layer.
6. The golf club head as claimed in claim 1, wherein the reduced section of the hosel includes a conic annular groove in a bottom edge wall thereof for improving bonding stability between the reduced section and the wrapping layer.
7. The golf club head as claimed in claim 1, wherein the reduced section of the hosel extends to a joint area between the hosel and the striking plate.
8. The golf club head as claimed in claim 7, wherein the reduced section of the hosel includes a conic annular groove in a bottom edge wall thereof for improving bonding stability between the reduced section and the wrapping layer.
9. The golf club head as claimed in claim 7, wherein the hosel further includes an engaging hole for engaging with a shaft.
10. The golf club head as claimed in claim 9, wherein the hosel includes a top end distal to the golf club head body, a flange being formed on the top end of the hosel for improving bonding stability between the engaging hole of the hosel and the shaft.
11. The golf club head as claimed in claim 10, wherein the reduced section of the hosel includes at least one protrusion on an outer periphery thereof for improving bonding stability between the reduced section and the wrapping layer.
12. The golf club head as claimed in claim 10, wherein the reduced section of the hosel includes at least one recessed portion on an outer periphery thereof for improving bonding stability between the reduced section and the wrapping layer.
13. The golf club head as claimed in claim 1, wherein the hosel is formed by one of precision casting, casting, mechanical processing, press casting, forging, and injection molding.
14. The golf club head as claimed in claim 1, wherein the hosel is engaged to the golf club head by means of section-by-section engagement.
15. The golf club head as claimed in claim 1, wherein the wrapping layer wraps the reduced section of the hosel by one of heat pressing, press casting, and injection molding.
Type: Application
Filed: Sep 24, 2003
Publication Date: Mar 24, 2005
Inventors: Chan-Tung Chen (Kaohsiung), Wen-Ching Hou (Kaohsiung)
Application Number: 10/668,196