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Golf club headGolf club head description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20080045356, Golf club head. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001]1. Field of the Invention [0002]The invention relates to a golf club head, more particularly to a golf club head with high strength and lightweight properties. [0003]2. Description of the Related Art [0004]Referring to FIGS. 1 and 2, a conventional golf club head 2 includes a front striking portion 22, an upper shell portion 23 formed as one piece with the front striking portion 22 and cooperating with the front striking portion 22 to define a lower opening 20, and a lower shell portion 21 fitted in the lower opening 20. Both of the upper shell portion 23 and the front striking portion 22 are formed with reinforcing ribs 24 projecting inwardly therefrom so as to reinforce the mechanical strength of the golf club head 2 while reducing the thickness of the upper shell portion 23 and the front striking portion 22 to reduce the overall weight of the golf club head 2. [0005]Since the upper shell portion 23 and the front striking portion 22 are made of metal, the weight thereof cannot be reduced effectively. Moreover, since the front striking portion 22 is provided with the reinforcing ribs 24, the center of gravity of the golf club head 2 is located at a distance relatively proximate to the front striking portion 22, which in turn reduces the striking stability and the striking distance. SUMMARY OF THE INVENTION [0006]Therefore, the object of the present invention is to provide a golf club head which possesses high strength and lightweight properties. [0007]Accordingly, the golf club head of this invention includes a hollow head body having a front striking member, an upper shell portion extending rearwardly from the front striking member, and a lower shell portion extending rearwardly from the front striking member and connected to the upper shell portion. The upper and lower shell portions and the front striking member cooperatively confine an enclosed inner space. One of the upper and lower shell portions is made of plastic, and the other one of the upper and lower shell portions is made of metal. The plastic shell portion has an inner surface, and a plurality of reinforcing ribs projecting from the inner surface. The front striking member has a rear inner surface which is free of the reinforcing ribs projecting therefrom. By virtue of the reinforcing ribs on the plastic shell portion, the distance of the center of gravity of the hollow head body from the front striking member can be increased. BRIEF DESCRIPTION OF THE DRAWINGS [0008]Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiments with reference to the accompanying drawings, of which: [0009]FIG. 1 is an exploded perspective view of a conventional golf club head; [0010]FIG. 2 is a sectional view of the conventional golf club head; [0011]FIG. 3 is a sectional view of the first preferred embodiment of a golf club head according to this invention; [0012]FIG. 4 is a schematic view of the first preferred embodiment; [0013]FIG. 5 is a schematic view of the second preferred of a golf club head according to this invention; [0014]FIG. 6 is a schematic view of the third preferred of a golf club head according to this invention; [0015]FIG. 7 is a schematic view of the fourth preferred of a golf club head according to this invention; [0016]FIG. 8 is a sectional view of the fifth preferred embodiment of a golf club head according to this invention; and [0017]FIG. 9 is a schematic view of the fifth preferred embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0018]Before the present invention is described in greater detail, it should be noted that like elements are denoted by the same reference numerals throughout the disclosure. [0019]Referring to FIGS. 3 and 4, the first preferred embodiment of a golf club head according to this invention is shown to include a hollow head body 1 having a front striking member 12, an upper shell portion 13 extending rearwardly from the front striking member 12, and a lower shell portion 11 extending rearwardly from the front striking member 12 and connected to the upper shell portion 13. The upper and lower shell portions 13,11 and the front striking member 12 cooperatively confine an enclosed inner space. In this embodiment, the upper shell portion 13 is made of plastic. Preferably, the upper shell portion 13 is made of carbon fibers. Moreover, in this embodiment, the lower shell portion 11 is made of metal. The upper shell portion 13 has an inner surface 131, and a plurality of reinforcing ribs 14 projecting from the inner surface 131. The front striking member 12 has a rear inner surface 121 which is free of the reinforcing ribs 14 projecting therefrom. By virtue of the reinforcing ribs 14 on the upper shell portion 13, the distance of the center of gravity of the hollow head body 1 from the front striking member 12 can be increased. In other wards, the center of gravity of the hollow head body 1 can be shifted rearwardly from the front striking member 12 compared to that of the conventional golf club head 2 so that the striking stability and the striking distance can be improved. The reinforcing ribs 14 are provided at a distance of at least 2 cm from the front striking member 12, are parallel to each other, and are straight. Therefore, the distance of the center of gravity of the hollow head body 1 from the front striking member 12 can be increased. In this preferred embodiment, the upper shell portion 13 and the reinforcing ribs 14 are made of plastic, and the reinforcing ribs 14 are formed as one piece with the upper shell portion 13. [0020]When making the golf club head of this embodiment, the upper shell portion 13 is formed as one piece with the reinforcing ribs 14 by any suitable manner, such as molding, from carbon fibers. The upper shell portion 13 is then assembled with the lower shell portion 11 and the front striking member 12 by any suitable manner well known in the art to form the golf club head. Continue reading about Golf club head... Full patent description for Golf club head Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Golf club head patent application. Patent Applications in related categories: 20090298613 - Golf club head with sound tuning - A golf club head with sound tuning. The golf club head includes a hollow body that defines an interior cavity and at least one tuning member extends across the interior cavity. The tuning member dimensions, stiffness and dampening characteristics are selected to alter the vibration behavior of the golf club ... ###  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 or other areas of interest. ### Previous Patent Application: Golf club Next Patent Application: Golf ball Industry Class: Games using tangible projectile ### FreshPatents.com Support Thank you for viewing the Golf club head patent info. IP-related news and info Results in 1.08299 seconds Other interesting Feshpatents.com categories: Tyco , Unilever , Warner-lambert , 3m 174 |
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