| Golf club head -> Monitor Keywords |
|
|
 
Golf club headRelated Patent Categories: Games Using Tangible Projectile, Golf, Club Or Club Support, Head, Particular Material Composition Or Mass Distribution, Recess Or Cavity Behind Striking FaceGolf club head description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070117653, Golf club head. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS REFERENCE TO RELATED APPLICATION [0001] This application is based upon and claims the benefit of priority from prior Japanese Patent Application No. 2003-415114, filed on Dec. 12, 2003; the entire contents of which are incorporated herein by reference. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a golf club head, and more specifically, relates to an iron-type golf club head composed of a metallic head body and a reinforced fiber member. [0004] 2. Description of the Related Art [0005] In publicly-known conventional iron-type golf club heads each composed of a metallic head body and a reinforced fiber member, a metallic striking face part is formed to be thin-walled, and a thick-walled fiber reinforced plastic layer is attached to or filled in the back of the striking face part as shown in Japanese Patent publications No. 65708/1992 and No. 88153/1993 and Japanese Patent Laid-open publication No. 173513/1997. [0006] Such golf club heads are considered to be capable of providing a larger launch angle and a longer carry of ball with their low center of gravity structure. [0007] In the conventional golf club heads, a longer carry is intended to be realized by repulsive forces of the thin-walled metallic striking face part, which is deformed due to the impact applied thereto when the golf club head hits a golf ball, and the thick-walled fiber reinforced plastic layer to which the deformation of the striking face part is directly transmitted. [0008] However, the deformation of the metallic striking face part at the time of striking the ball is very small. This small deformation can produce a deformation, in the thickness direction, of the fiber reinforced plastic layer therebehind, which produces a repulsive force against the ball. The repulsive force produced from the deformation of the layer alone is small, and the carry of the ball cannot be increased much. SUMMARY OF THE INVENTION [0009] The present invention is made in the light of the above problem, and an object of the present invention is to provide a golf club head capable of providing a longer carry of a ball than ever before, by causing a larger repulsive force to act on the ball, which force is produced using deformation of a metallic striking face part at the time when the golf club head strikes the ball. [0010] To achieve the aforementioned object, the golf club head of the present invention includes: a metallic frame-shaped iron head body including a heel section, a toe section, an upper edge section connecting the superior ends of the heel section and of the toe section, and a sole section; and a metallic thin-walled face section, having a high coefficient of restitution, provided on a front face of the head body. The head body includes a rear wall section, spaced apart from the face section and extending upward from a rear end of the sole section. A reinforced fiber member is placed in an area surrounded by the face section, the sole section, and the rear wall section. The reinforced fiber member abuts on a back of the face section to form a closed hollow void section. A part of a back of the reinforced fiber member is supported on the rear wall section. [0011] When the golf club head strikes a golf ball, the face section is deformed to bulge backward and to compress the closed void section of the reinforced fiber member therebehind. With the compression force, the closed void section is elastically deformed. Elastic restoring forces of the face plate and of the void section are combined to act on the golf ball as a repulsive force, thus increasing the carry of the golf ball. [0012] Preferably, a part of the reinforced fiber member is shaped in a plate and brought in close contact with the back of the face section. The plate-shaped part of the reinforced fiber member and the other part thereof form an oblong sealed closed void section. [0013] Also preferably, the rear wall section is formed of a chevron-shaped extension section protruding upward from the rear end of the sole section and a belt-shaped extension section diagonally connecting the top of the chevron-shaped extension section and the upper end of the toe section. [0014] Hereinafter, a description is given of preferred embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS [0015] FIG. 1 is a front view of an iron golf club head according to a preferred embodiment of the present invention. [0016] FIG. 2 is a rear view of the iron golf club head shown in FIG. 1. [0017] FIG. 3 is a sectional view taken along a line III-III of FIG. 2. [0018] FIG. 4 is a rear view showing a second embodiment of the present invention. [0019] FIG. 5 is a sectional view taken along a line V-V of FIG. 3. BEST MODES FOR CARRYING OUT THE INVENTION 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. ###  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 heads Next Patent Application: Painted golf ball and process for preparing the same 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 0.14361 seconds Other interesting Feshpatents.com categories: Computers: Graphics , I/O , Processors , Dyn. Storage , Static Storage , Printers 174 |
 * Protect your Inventions * US Patent Office filing 
PATENT INFO |
|
