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  Golf club head and method of fabricating striking plateUSPTO Application #: 20080108452Title: Golf club head and method of fabricating striking plate Abstract: A golf club head including a head body and a striking plate is provided. The head body has an opening. The striking plate having a striking surface includes a plate body and at least a low-elastic-modulus region. The plate body disposed at the opening has a first surface exposed to the outside. The low-elastic-modulus region disposed in the plate body has a second surface exposed to the outside. The striking surface is composed of the first surface and the second surface. The elastic modulus of the low-elastic-modulus region is smaller than that of the plate body. A method of fabricating a striking plate is also provided. (end of abstract) Agent: J C Patents, Inc. - Irvine, CA, US Inventor: Ming-Jui Chiang USPTO Applicaton #: 20080108452 - Class: 473329 (USPTO) The Patent Description & Claims data below is from USPTO Patent Application 20080108452. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS-REFERENCE TO RELATED APPLICATION [0001]This application claims the priority benefit of Taiwan application serial no. 95141128, filed Nov. 7, 2006. All disclosure of the Taiwan application is incorporated herein by reference. BACKGROUND OF THE INVENTION [0002]1. Field of the Invention [0003]The present invention generally relates to a golf club head and a method of fabricating a striking plate, and more particular, to a golf club head with a striking plate having a low-elastic-modulus region and a method of fabricating the striking plate. [0004]2. Description of Related Art [0005]Along with the popularization of sport lifestyle in the modern society, the golf sport has become one of the most favourite sports of the people for a long time, and the participating population is growing rapidly. Golf clubs may be classified into some types, namely wooden club, iron club, putter and so on, according to different golf course typography and different purposes. [0006]The wooden club has a golf club head usually composed of a head body made of a metal or carbon fiber and a striking plate joined with the head body for striking balls. In order to exhibit the expected controllability of golf balls and achieve the optimum ball-striking efficiency, a golf club head is designed according to a specific specification including dimension and weight limitations. Therefore, to achieve the optimum design of a golf club head, the basic architectures of the head body and the striking plate and the joining structure thereof are focused to modify appropriately. [0007]The region with a high coefficient of restitution (COR) of the homogeneous striking plate with uniform thickness is usually located at a central region thereof. The COR of a striking plate would be gradually reduced with the increasing distance from the central region. It should be noted that the larger the high-COR region of the striking plate of a golf club head is, the better the striking effect of the striking plate of a golf club head is. Therefore, the striking plates of some conventional golf club heads are designed to have a thinner thickness to promote the striking restitution capability. However, such a conventional design may reduce the durability of the striking plate, and the striking plate may get damaged after a long time of striking as the thickness is reduced. How to simply and effectively promote the striking restitution capability without degrading the durability of a striking plate has become an important issue. SUMMARY OF THE INVENTION [0008]The present invention is directed to a golf club head with a striking plate having a larger high-COR region. [0009]The present invention is also directed to a method of fabricating the striking plate, so as to enlarge the high-COR region of the striking plate. [0010]The present invention provides a golf club head, which includes a head body and a striking plate. The head body has an opening, and the striking plate has a striking surface. The striking plate includes a plate body and at least a low-elastic-modulus region. The plate body is disposed at the opening and has a first surface exposed to the outside. The low-elastic-modulus region is disposed in the plate body, wherein the low-elastic-modulus region has a second surface exposed to the outside, the striking surface is composed of the first surface and the second surface, and the elastic modulus of the low-elastic-modulus region is smaller than that of the plate body. [0011]In an embodiment of the present invention, the elastic modulus of the plate body may be greater than or equal to 100 GPa. [0012]In an embodiment of the present invention, the absolute difference between the elastic modulus of the low-elastic-modulus region and that of the plate body may be greater than or equal to 10 GPa. [0013]In an embodiment of the present invention, the depth of the low-elastic-modulus region may be smaller than or equal to 2 mm. [0014]In an embodiment of the present invention, the plate body and low-elastic-modulus region comprise different materials. [0015]In an embodiment of the present invention, the plate body and low-elastic-modulus region comprise different materials, wherein the plate body comprises a titanium alloy. [0016]In an embodiment of the present invention, the plate body and low-elastic-modulus region comprise different materials, wherein the low-elastic-modulus region comprises a .beta.-type titanium alloy. [0017]In an embodiment of the present invention, the plate body and low-elastic-modulus region comprise different materials. The low-elastic-modulus region comprises a .beta.-type titanium alloy which is a Ti-15V-3Al-3Cr-3Sn titanium alloy composed of 76% titanium, 15% vanadium, 3% aluminium, 3% chrome and 3% tin in percentage weight composition. [0018]In an embodiment of the present invention, the plate body may have at least a cavity exposed to the outside, wherein the depth of the cavity is smaller than the thickness of the plate body and the cavity is filled with the low-elastic-modulus region. [0019]In an embodiment of the present invention, the plate body may have at least a cavity exposed to the outside, wherein the depth of the cavity is smaller than the thickness of the plate body and the cavity is filled with the low-elastic-modulus region. An extension surface of the first surface over the cavity may be coplanar with the second surface. [0020]In an embodiment of the present invention, the plate body may have at least a cavity exposed to the outside, wherein the depth of the cavity is smaller than the thickness of the plate body and the cavity is filled with the low-elastic-modulus region. Besides, the depth of the cavity may be smaller than or equal to 2 mm. [0021]In an embodiment of the present invention, the plate body may have at least a cavity exposed to the outside, wherein the depth of the cavity is smaller than the thickness of the plate body and the cavity is filled with the low-elastic-modulus region. The cavity may have a regular shape. Continue reading... Full patent description for Golf club head and method of fabricating striking plate Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Golf club head and method of fabricating striking plate patent application. Patent Applications in related categories: 20080171612 - Golf club heads with one or more indented inserts and methods to manufacture golf club heads - Embodiments of golf club heads with one or more indented inserts and methods to manufacture golf club heads are generally described herein. Other embodiments may be described and claimed. ... ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Golf club head and method of fabricating striking plate or other areas of interest. ### Previous Patent Application: Golf shaft with an adhesive layer Next Patent Application: Golf club head Industry Class: Games using tangible projectile ### FreshPatents.com Support Thank you for viewing the Golf club head and method of fabricating striking plate patent info. 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