Golf club and head thereof

Abstract

A golf club head comprising a striking plate, a shell together with the striking plate to form a main body, and a power zone disposed on the shell is provided. The power zone satisfies equations that (S/W)=4˜40 and ((d 1 +d 2 )/d 1 )=1.6˜6, wherein S is a distance from a center of the striking plate to an edge of the power zone, W is a width of the power zone, d 1 is a thickness of the shell, and d 2 is a thickness of the power zone. By forming the power zone on the main body, the coefficient of reaction of the golf club head can be enhanced. Moreover, the contact time between the golf ball and the striking plate as using the golf club head to hit the ball can be prolonged. Therefore, the effect of ball controlling and hitting is improved.

1 . A golf club head, comprising:
 a striking plate;   a shell, together with the striking plate to form a main body; and   a power zone, disposed on the shell, the power ring satisfying an equation that
   ( S/W )=4˜40, and 
   (( d 1+ d 2)/ d 1)=1.6˜6, 
   wherein S is a distance from a center of the striking plate to an edge of the power zone along the outer surface, W is a width of the power zone, d 1  is a thickness of the shell, and d 2  is a thickness of the power zone.   
   
   
       2 . The golf club head according to  claim 1 , wherein S is less than 120 mm. 
   
   
       3 . The golf club head according to  claim 1 , wherein S is a constant. 
   
   
       4 . The golf club head according to  claim 1 , wherein W is a constant. 
   
   
       5 . The golf club head according to  claim 1 , wherein d 1  is a constant. 
   
   
       6 . The golf club head according to  claim 1 , wherein d 2  is a constant. 
   
   
       7 . The golf club head according to  claim 1 , wherein the thickness d 2  of the power zone gradually varies outward from the striking plate. 
   
   
       8 . The golf club head according to  claim 1 , wherein the power zone is a continuous pattern. 
   
   
       9 . The golf club head according to  claim 1 , wherein the power zone is a discontinuous pattern comprising a plurality of sub-patterns. 
   
   
       10 . The golf club head according to  claim 9 , wherein the sub-patterns comprising a plurality of stripes arranged in a ring. 
   
   
       11 . The golf club head according to  claim 10 , wherein the distance from the center of each of the stripes to the center of another adjacent stripe is a constant. 
   
   
       12 . The golf club head according to  claim 9 , wherein the sub-patterns comprising a plurality of sub-rings. 
   
   
       13 . The golf club head according to  claim 12 , wherein the sub-rings are arranged in parallel. 
   
   
       14 . The golf club head according to  claim 13 , wherein the distance from the center line of each of the sub-rings to the center line of another adjacent sub-ring is a constant. 
   
   
       15 . The golf club head according to  claim 13 , wherein the distance from the center line of each of the sub-rings to the center line of another adjacent sub-ring gradually varies outward from the striking plate. 
   
   
       16 . The golf club head according to  claim 12 , wherein each of the sub-rings comprises a plurality of stripes. 
   
   
       17 . The golf club head according to  claim 16 , wherein the distance from the center of each of the stripes to the center of another adjacent stripe is a constant. 
   
   
       18 . The golf club head according to  claim 1 , wherein the striking plate is integrally formed with the shell. 
   
   
       19 . The golf club head according to  claim 1 , wherein the power ring is integrally formed with the shell. 
   
   
       20 . A golf club, comprising:
 a shaft;   a striking plate;   a shell, together with the striking plate to form a main body connected with the shaft; and   a power zone, disposed on the shell, the power ring satisfying an equation that
   ( S/W )=4˜40, and 
   (( d 1+ d 2)/ d 1)=1.6˜6, 
   wherein S is a distance from a center of the striking plate to an edge of the power zone along the outer surface, W is a width of the power zone, d 1  is a thickness of the shell, and d 2  is a thickness of the power zone.