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  Golf club head structure for casting in fe-mn-al alloyUSPTO Application #: 20060003852Title: Golf club head structure for casting in fe-mn-al alloy Abstract: A golf club head structure includes a striking plate member and a weight member connected thereto. The striking plate member is cast in Fe—Mn—Al alloy and integrally formed with a striking portion and a hosel portion so as to improve casting fluidity in the slurry shell and to eliminate contraction cavities. The weight member is made of high specific gravity material used to adjust a center of gravity of the golf club head. (end of abstract) Agent: Birch Stewart Kolasch & Birch - Falls Church, VA, US Inventor: Wen-Ching Hou USPTO Applicaton #: 20060003852 - Class: 473345000 (USPTO) Related Patent Categories: Games Using Tangible Projectile, Golf, Club Or Club Support, Head, Hollow Body The Patent Description & Claims data below is from USPTO Patent Application 20060003852. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a golf club head structure for casting in Fe--Mn--Al alloy. More particularly, the present invention relates to a golf club head structure consisting of a striking plate member and a weight member, wherein the striking plate member is cast in Fe--Mn--Al alloy to improve vibration-absorbable characteristic. [0003] 2. Description of the Related Art [0004] Referring initially to FIG. 1, it illustrates a conventional golf club head structure casting in Fe--Mn--Al alloy. The golf club head is integrally formed with a club head body 10 which has a thickness generally greater than 5 mm that may deteriorate casting fluidity in slush casting. A striking plate 11 connects to a face portion of the club head body 10 for striking a golf ball (not shown) while a hosel 12 connecting to a side portion of the club head body 10 for receiving a shaft (not shown). The club head body 10 further includes a compartment 100 to accommodate a weight member 20. A rear portion of the club head body 10 is recessed an undercut (not labeled) that provides with a space to permit the deformation of the striking plate 11 within the undercut. [0005] Fe--Mn--Al alloy has highly low density, high coefficient of elasticity and high degree of hardness that performs excellently vibration-absorbable and highly heterogeneous-weldable characteristic. Hence, when Fe--Mn--Al alloy is employed to cast a golf club head, it can accomplish to lower a center of gravity, to improve striking ability and heterogeneous welding quality, and to enlarge striking surface area. [0006] In slush casting, there are several problems of worse casting fluidity in a slurry shell and casting quality for casting in Fe--Mn--Al alloy due to changes in thickness and a complicated three-D structure of the club head body 10. Inevitably, when Fe--Mn--Al alloy is employed to cast a casting of a golf club head, a finished product of the casting has many casting deficiencies of cold-shot, contraction cavities and slag-eye due to low casting fluidity in a slurry shell. Generally, the improvement of casting technology and cast molding system may eliminate deficiencies of cold-shot and slag bonding. As to the contraction cavity, a finishing and grinding process can eliminate it. However, when the contraction cavities are located in a complicated structure and an unbalanced thickness (such as an opening or an undercut) of the golf club head, it is hard to eliminate the contraction cavities by means of the finishing and grinding process. Consequently, the contraction cavities may be remained on the surface of the golf club head that may result in a decrease in the value of products. Thus, the applied scope of Fe--Mn--Al alloy in the industry is restricted and unsuitable for casting the golf club head. Hence, there is a need for a club head structure which is suitable for using Fe--Mn--Al alloy in slush casting. [0007] To adjust a center of gravity of the golf club head, the club head body 10 must reserve the compartment 100 to fittingly accommodate the weight member 20 that the golf club head has a desired weight and a center of gravity. To reduce dimensions of the golf club head, the club head body 10 must be dimensioned as small as possible. Because of this task, it is preferable to size the weight member 20 as small as possible that cannot effectively adjust a center of gravity of the golf club head. However, the compartment 100 may complicate the structure of the club head body 10 that is unsuitable for slush casting. Namely, the structure of the club head body 10 is simplified by eliminating the compartment 100. Hence, there is also a need for a simplified structure of the golf club head which is suitable for using Fe--Mn--Al alloy in slush casting. [0008] The present invention intends to provide a golf club head structure consisting of a striking plate member and a weight member for casting in Fe--Mn--Al alloy. For better casting fluidity in a slurry shell, relative changes in thickness of a casting of the striking plate member are controlled in a particular ratio that aids low casting fluidity of molten iron in the slurry shell for casting in Fe--Mn--Al alloy to eliminate contraction cavities of the casting. Thereby, the golf club head structure for Fe--Mn--Al with excellently vibration-absorbable characteristic can enhance casting quality in such a way to mitigate and overcome the above problem. SUMMARY OF THE INVENTION [0009] The primary objective of this invention is to provide a golf club head structure for casting a striking plate member in Fe--Mn--Al alloy. A casting of the striking plate member employs a particular ratio of thickness that aids low casting fluidity of molten iron in a slurry shell for casting in Fe--Mn--Al alloy to eliminate contraction cavities of the casting. Thereby, the golf club head structure for Fe--Mn--Al with excellently vibration-absorbable characteristic can enhance casting quality. [0010] The secondary objective of this invention is to provide the golf club head structure for casting a striking plate member in Fe--Mn--Al alloy. The striking plate member directly connects to a weight member to simplify the entire structure of the golf club head that may aids low casting fluidity of molten iron in the slurry shell for casting in Fe--Mn--Al alloy. [0011] The golf club head structure in accordance with the present invention includes a striking plate member and a weight member connected thereto. The striking plate member is cast in Fe--Mn--Al alloy and integrally formed with a striking portion and a hosel portion so as to improve casting fluidity in the slurry shell and to eliminate contraction cavities. The weight member is made of high specific gravity material used to adjust a center of gravity of the golf club head. [0012] Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS [0013] The present invention will now be described in detail with reference to the accompanying drawings wherein: [0014] FIG. 1 is an exploded perspective view of a conventional golf club head structure in accordance with the prior art; [0015] FIG. 2 is an exploded perspective view of a golf club head structure in accordance with a preferred embodiment of the present invention; [0016] FIG. 3 is a rear exploded perspective view of the golf club head structure in accordance with a preferred embodiment of the present invention; [0017] FIG. 4 is a combined perspective view of the golf club head structure in a welding process in accordance with a preferred embodiment of the present invention; and [0018] FIG. 5 is a perspective view of a finished product of the golf club head structure in accordance with a preferred embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION [0019] Referring to FIGS. 2 through 5, reference numerals of the preferred embodiment of the present invention have applied the identical numerals of the conventional golf club head member, as shown in FIG. 1. The construction of the golf club head member in accordance with the preferred embodiment of the present invention has similar configuration and same function as that of the conventional golf club head member and detailed descriptions may be omitted. [0020] Referring to FIGS. 2 and 3, a golf club head structure in accordance with a preferred embodiment of the present invention includes a striking plate member 10a and a weight member 10b to constitute a club head body 10'. Preferably, the striking plate member 10a is substantially shaped a spatula-like member while the weight member 10b being substantially shaped an irregular ring member. Continue reading... Full patent description for Golf club head structure for casting in fe-mn-al alloy Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Golf club head structure for casting in fe-mn-al alloy patent application. ###  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 structure for casting in fe-mn-al alloy or other areas of interest. ### Previous Patent Application: High spin golf club groove configuration Next Patent Application: Golf ball Industry Class: Games using tangible projectile ### FreshPatents.com Support Thank you for viewing the Golf club head structure for casting in fe-mn-al alloy patent info. 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