Golf club head with improved inertia performance

Abstract

A golf club head that is capable improving on the inertia properties of a golf club head all while also improving the Center of Gravity (CG) location is disclosed herein. More specifically, the golf club head in accordance with the present invention achieves a relative low Moment of Inertia (MOI) about the Z-axis (MOI-Z) as well as a relatively low MOI about the Shaft-axis (MOI-SA), all combined with a high MOI about the X and Y-axis (MOI-X and MOI-Y) and maintaining a consistently and relatively low CG location measured along a direction tangent to the hosel axis along the X-Y plane (CG-B).

What is claimed is: 
     
         1 . A golf club comprised of a golf club head, a shaft having a shaft axis coupled to the golf club head at a first end of the shaft and a grip coupled to the shaft at a second end of the shaft, wherein the golf club head comprises:
 a frontal portion comprised of metal comprising a striking face having a face center located at a forward portion of said golf club head;   a rear portion located aft of said striking face, the rear portion comprising a crown at an upper portion of said golf club head, a sole portion on a bottom portion of said golf club head and an elongated channel along a back edge of the golf club head; and   wherein an x-axis is defined as a horizontal axis tangent to said face center with a positive x direction towards a heel of said golf club head, a y-axis is a vertical axis orthogonal to said x-axis with a positive y direction towards said crown of said golf club head, and a z-axis being orthogonal to both said x-axis and said y-axis with a positive z direction extending forward,   wherein said golf club head has a moment of inertia about said y-axis (MOI-Y) passing through a center of gravity (CG) of said golf club head, said golf club head has a moment of inertia about said z-axis (MOI-Z) passing through said CG, and said golf club head has a moment of inertia about said x-axis (MOI-X) passing through said CG;   a weighting member extending in a heel-to-toe direction and comprising an elongated member coupled to fit in the elongated channel, a toe side weight element, a heel side weight element and a first weighting element having a mass of between 5 grams and 15 grams secured in the toe side weight element or the heel side weight element.   
     
     
         2 . The golf club of  claim 1 , wherein the rear portion further comprises a joint connector juxtaposed the crown and the sole portion at the back edge. 
     
     
         3 . The golf club of  claim 1 , wherein the first weighting element is comprised of metal or tungsten filled polymer. 
     
     
         4 . The golf club of  claim 3 , wherein the elongated member, the toe side weight element and the heel side weight element are formed from an anodized aluminum or a fiber reinforced thermoplastic material. 
     
     
         5 . The golf club of  claim 3 , wherein the elongated member has a first length L 1  and a first width W 1  and the toe side weight element has a second length L 2  and a second width W 2  and the first length L 1  is equal to or greater than two times the second length L 2 . 
     
     
         6 . The golf club of  claim 5 , wherein the second width W 2  is equal to or greater than two times the first width W 1 .