Large scale blade putters

Abstract

Embodiments of a blade style putter type club head comprising enlarged physical features such as an enlarged length, height, and depth. The enlarged physical features, specifically the enlarged length allows mass to be positioned further from the center of gravity. The positioning of the mass away from the center of gravity allows the blade style club head to achieve an increased MOIyy creating a more forgiving blade style putter type club head.

1 . A blade style putter type club head comprising:
 a strikeface, a rear opposite the strikeface; a heel, a toe opposite the heel, a top rail, a sole,   a hosel, and perimeter weighting;
 wherein the perimeter weighing comprises a heel weight positioned heelward of a GC (geometric center) plane and a toe weight positioned toeward of the GC (geometric center) plane; 
   a club head center of gravity (CG location);   an XYZ coordinate system;
 wherein an origin for the XYZ coordinate system is defined at a center point of a leading edge of the blade style putter type club head, the XYZ coordinate system having an x-axis, a y-axis, a z-axis;
 wherein;
 a horizontal x-axis extending from the heel to the toe; 
 a vertical y-axis extending from the sole to the top rail; 
 a horizontal z-axis extending from the strikeface to the rear; 
 wherein a moment of inertia MOIyy about the y-axis greater than 1000 g-in 2 ; 
 
 
   a length,
 wherein:
 the length is measured from an outer most point of the toe to an outer most point of the heel in a direction parallel to the x-axis; and 
 the length is between 4.5 inches and 7.00 inches. 
 
   
     
     
         2 . The blade style putter type club head of  claim 1 , wherein:
 the CG location is defined by points CGx, CGy, and CGz, respectively corresponding to points on the x-axis, y-axis, and z-axis; wherein:   the CGx is measured parallel to the x-axis from the origin;   the CGy is measured parallel to the y-axis from the origin;   the CGz is measured parallel to the z-axis from the origin;
 wherein:
 the CGx is between 0.00 inches and 0.10 inches; 
 the CGy is between 0.30 inches and 0.90 inches; and 
 the CGz is between −0.35 inches and −1.10. 
 
   
     
     
         3 . The blade style putter type club head of  claim 2 , further comprising a MOIyy/CGz ratio greater than 1600 g-in. 
     
     
         4 . The blade style putter type club head of  claim 1 , wherein a moment of inertia MOIxx about the x-axis greater than 100 g-in 2 . 
     
     
         5 . The blade style putter type club head of  claim 1 , wherein a moment of inertia MOIzz about the z-axis greater than 1000 g-in 2 . 
     
     
         6 . The blade style putter type club head of  claim 1 , wherein the heel weight comprises a cylindrical shaped heel weight. 
     
     
         7 . The blade style putter type club head of  claim 1 , wherein the hosel comprises a hosel axis;
 wherein:
 the hosel axis is concentric with the hosel and is parallel to the y-axis; and 
 the hosel axis is positioned a distance D h  from the heel;
 wherein:
 the distance D h  is greater than 1.00 inch. 
 
 
   
     
     
         8 . The blade style putter type club head of  claim 1 , wherein the toe weight further comprises a cylindrical shaped toe weight. 
     
     
         9 . The blade style putter type club head of  claim 1 , wherein each of the heel weight and the toe weight comprises a mass between 5 grams and 25 grams. 
     
     
         10 . A blade style putter type club head comprising:
 a strikeface, a rear opposite the strikeface; a heel, a toe opposite the heel, a top rail, a sole opposite the top rail, a hosel, and a perimeter weight;   a total mass;   a club head center of gravity (CG location);   a GC plane;
 wherein the GC plane is a midplane that extends from the strikeface to the rear; 
   a first set of planes, a second set of planes, a third set of planes, and a fourth set of planes;
 wherein: 
 the first set of planes is positioned a distance L1 from the GC plane; 
 the second set of planes is positioned a distance L3 from the GC plane; 
 the third set of planes is positioned a distance L5 from the GC plane; 
 the fourth set of planes is positioned a distance L7 from the GC plane; and 
   wherein more than 50% of the total mass is positioned outside the third set of planes more than 25% of the total mass is positioned outside the fourth set of planes.   
     
     
         11 . The blade style putter type club head of  claim 10 , wherein:
 the distance L1 is 1.0 inch;   the distance L3 is 1.5 inches;   the distance L5 is 2.0 inches; and   the distance L7 is 2.5 inches.   
     
     
         12 . The blade style putter type club head of  claim 10 , further comprising:
 an XYZ coordinate system;
 wherein an origin for the XYZ coordinate system is defined at a center point of a leading edge of the blade style putter type club head, the XYZ coordinate system having an x-axis, a y-axis, a z-axis;
 wherein;
 a horizontal x-axis extending from the heel to the toe; 
 a vertical y-axis extending from the sole to the top rail; and 
 a horizontal z-axis extending from the strike face to the rear. 
 
 
   
     
     
         13 . A blade style putter type club head of  claim 12 , wherein:
 the CG location is defined by points CGx, CGy, and CGz, respectively corresponding to points on the x-axis, y-axis, and z-axis; wherein:   the CGx is measured parallel to the x-axis from the origin;   the Cgy is measured parallel to the y-axis from the origin;   the CGz is measured parallel to the z-axis from the origin;
 wherein:
 the CGx is between 0.00 inches and 0.10 inches; 
 the Cgy is between 0.30 inches and 0.90 inches; and 
 the CGz is between −0.35 inches and −1.10 inches. 
 
   
     
     
         14 . The blade style putter type club head of  claim 12 , wherein a moment of inertia MOIyy about the y-axis is greater than 1000 g-in 2 . 
     
     
         15 . The blade style putter type club head of  claim 12 , wherein a moment of inertia MOIxx about the x-axis is greater than 100 g-in 2 . 
     
     
         16 . The blade style putter type club head of  claim 12 , wherein a moment of inertia MOIzz about the z-axis is greater than 1000 g-in 2 . 
     
     
         17 . The blade style putter type club head of  claim 10 , further comprising a MOIyy/CGz ratio greater than 1600 g*in. 
     
     
         18 . The blade style putter type club head of  claim 10 , wherein the perimeter weight comprises a mass between 5 grams and 25 grams. 
     
     
         19 . The blade style putter type club head of  claim 18 , wherein the perimeter weight comprises a cylindrical shape. 
     
     
         20 . The blade style putter type club head of  claim 12 , wherein the perimeter weight comprises a CG w , wherein:
 the CG w  is positioned a distance away from the y-axis; and   the distance is greater than 2.0 inches.