Toe-biased golf club

Abstract

A golf club head includes a striking face having an upper perimeter, a lower perimeter, a heel portion, a toe portion, and a posterior body portion comprising a crown portion and a sole portion. The crown is coupled to the upper perimeter of the striking face and the sole is coupled to the lower perimeter of the striking face. The golf club also includes a hosel for receiving a shaft. The heel is positioned below the hosel and the club head has a c.g. positioned towards the toe from a vertical plane running perpendicularly through the crown, the sole, and the striking face.

What is claimed is: 
     
         1 . A golf club head comprising:
 a striking face having an upper perimeter, a lower perimeter, a heel portion, a toe portion, and a face center located at a geometric center of said striking face;   a posterior body portion comprising a crown portion and a sole portion, wherein said crown portion is coupled to said upper perimeter of said striking face and said sole portion is coupled to said lower perimeter of the striking face;   a hosel for receiving a shaft;   an x-axis extending through said face center, said x-axis substantially parallel to said striking face and extending from said heel portion towards said toe portion;   a z-axis extending through said face center, said z-axis perpendicular to said x-axis and extending from said sole towards said crown; and   a y-axis extending through said face center; said y-axis perpendicular to said x-axis and said z-axis and extending from striking face towards said posterior body portion;   wherein said heel portion is positioned below said hosel and the club head has a c.g. positioned towards said toe portion of said striking face at least 5 mm from a vertical plane running perpendicularly through said crown, said sole, and said striking face, wherein said vertical plane is co-planar with said z-axis and said y-axis;   wherein said striking face comprises bulge and roll, said bulge having at least 2 radii of curvature;   wherein a center of at least 1 radius of said at least 2 radii of curvature is positioned towards said toe portion of said striking face from said vertical plane;   wherein a center of at least 1 radius of said at least 2 radii of curvature is positioned towards said heel portion of said striking face from said vertical plane.   
     
     
         2 . The golf club of  claim 1 , wherein the club head c.g. is positioned at least 10 mm from the vertical plane. 
     
     
         3 . The golf club of  claim 2 , wherein the club head c.g. is positioned at least 15 mm from the vertical plane. 
     
     
         4 . The golf club of  claim 1 , wherein the club head further comprises a horizontal plane parallel to and positioned between the crown portion and the sole portion as to intersect the heel and the toe, wherein said horizontal plane is co-planar with said x-axis and said y-axis, and wherein said c.g. is positioned at least 1 mm above said horizontal plane towards the crown portion. 
     
     
         5 . The golf club of  claim 1 , wherein the club head further comprises a horizontal plane parallel to and positioned between the crown portion and the sole portion as to intersect the heel and the toe, wherein said horizontal plane is co-planar with said x-axis and said y-axis, and wherein said c.g. is positioned at least 1 mm below the horizontal plane towards the sole portion. 
     
     
         6 . The golf club of  claim 1 , wherein the crown portion is formed from a first material and a second material lighter than the first, wherein the second material is positioned closer to the heel than the toe. 
     
     
         7 . The golf club of claim of  claim 6 , wherein the second material comprises carbon fiber composites, aluminum, magnesium, thermoplastic, or thermoset polymers. 
     
     
         8 . A golf club head comprising:
 a striking face having an upper perimeter, a lower perimeter, a heel portion, a toe portion, and a face center located at a geometric center of said striking face;   a posterior body portion comprising a crown portion and a sole portion, wherein said crown portion is coupled to said upper perimeter of said striking face and said sole portion is coupled to said lower perimeter of the striking face;   a hosel for receiving a shaft;   an x-axis extending through said face center, said x-axis substantially parallel to said striking face and extending from said heel portion towards said toe portion;   a z-axis extending through said face center, said z-axis perpendicular to said x-axis and extending from said sole towards said crown; and   a y-axis extending through said face center; said y-axis perpendicular to said x-axis and said z-axis and extending from striking face towards said posterior body portion;   wherein said heel portion is positioned below said hosel and the club head has a c.g. positioned towards said toe portion of said striking face at least 5 mm from a vertical plane running perpendicularly through said crown, said sole, and said striking face, wherein said vertical plane is co-planar with said z-axis and said y-axis;   wherein said striking face comprises bulge and roll, said bulge having at least 2 radii of curvature;   wherein a center of at least  1  radius of said at least  2  radii of curvature is positioned towards said toe portion of said striking face from said vertical plane.   
     
     
         9 . The golf club of  claim 8 , wherein the club head c.g. is positioned at least 10 mm from the vertical plane. 
     
     
         10 . The golf club of  claim 9 , wherein the club head c.g. is positioned at least 15 mm from the vertical plane. 
     
     
         11 . The golf club of  claim 8 , wherein the club head further comprises a horizontal plane parallel to and positioned between the crown portion and the sole portion as to intersect the heel and the toe, wherein said horizontal plane is co-planar with said x-axis and said y-axis, and wherein said c.g. is positioned at least 1 mm above said horizontal plane towards the crown portion. 
     
     
         12 . The golf club of  claim 8 , wherein the club head further comprises a horizontal plane parallel to and positioned between the crown portion and the sole portion as to intersect the heel and the toe, wherein said horizontal plane is co-planar with said x-axis and said y-axis, and wherein said c.g. is positioned at least 1 mm below the horizontal plane towards the sole portion. 
     
     
         13 . The golf club of  claim 8 , wherein the crown portion is formed from a first material and a second material lighter than the first, wherein the second material is positioned closer to the heel than the toe. 
     
     
         14 . The golf club of claim of  claim 13 , wherein the second material comprises carbon fiber composites, aluminum, magnesium, thermoplastic, or thermoset polymers. 
     
     
         15 . A golf club head comprising:
 a striking face having an upper perimeter, a lower perimeter, a heel portion, a toe portion, and a face center located at a geometric center of said striking face;   a posterior body portion comprising a crown portion and a sole portion, wherein said crown portion is coupled to said upper perimeter of said striking face and said sole portion is coupled to said lower perimeter of the striking face;   a hosel for receiving a shaft;   an x-axis extending through said face center, said x-axis substantially parallel to said striking face and extending from said heel portion towards said toe portion;   a z-axis extending through said face center, said z-axis perpendicular to said x-axis and extending from said sole towards said crown; and   a y-axis extending through said face center; said y-axis perpendicular to said x-axis and said z-axis and extending from striking face towards said posterior body portion;   wherein said heel portion is positioned below said hosel and the club head has a c.g. positioned towards said toe portion of said striking face at least 5 mm from a vertical plane running perpendicularly through said crown, said sole, and said striking face, wherein said vertical plane is co-planar with said z-axis and said y-axis;   wherein said striking face comprises bulge and roll, said bulge having at least 2 radii of curvature;   wherein a center of at least 1 radius of said at least 2 radii of curvature is positioned towards said heel portion of said striking face from said vertical plane.   
     
     
         16 . The golf club of  claim 15 , wherein the club head c.g. is positioned at least 10 mm from the vertical plane. 
     
     
         17 . The golf club of  claim 16 , wherein the club head c.g. is positioned at least 15 mm from the vertical plane. 
     
     
         18 . The golf club of  claim 15 , wherein the club head further comprises a horizontal plane parallel to and positioned between the crown portion and the sole portion as to intersect the heel and the toe, wherein said horizontal plane is co-planar with said x-axis and said y-axis, and wherein said c.g. is positioned at least 1 mm above said horizontal plane towards the crown portion. 
     
     
         19 . The golf club of  claim 15 , wherein the club head further comprises a horizontal plane parallel to and positioned between the crown portion and the sole portion as to intersect the heel and the toe, wherein said horizontal plane is co-planar with said x-axis and said y-axis, and wherein said c.g. is positioned at least 1 mm below the horizontal plane towards the sole portion. 
     
     
         20 . The golf club of  claim 19 , wherein the crown portion is formed from a first material and a second material lighter than the first, wherein the second material is positioned closer to the heel than the toe.