Golf club head

Abstract

A golf club head is disposed. The golf club head comprises a main body, a neck portion, a hosel, and at least one adjusting groove. The main body has a heel portion and a toe portion. The neck portion is connected to the heel portion of the main body. The hosel is connected to the main body via the neck portion, and the adjusting groove is disposed around the peripheral surface of the neck portion or the hosel.

1 . A golf club head, comprising:
 a main body having a heel portion and a toe portion;   a neck portion connected to the heel portion of the main body;   a hosel connected to the main body via the neck portion for receiving a club shaft, wherein the hosel has a first peripheral surface; and   at least one adjusting groove formed around the first peripheral surface of the hosel.   
   
   
       2 . The golf club head as claimed in  claim 1 , wherein the adjusting groove is a ring-shaped groove. 
   
   
       3 . The golf club head as claimed in  claim 1 , wherein the adjusting groove are a plurality of square grooves formed around the first peripheral surface of the hosel, wherein every two adjacent square grooves are spaced from each other at a predetermined interval. 
   
   
       4 . The golf club head as claimed in  claim 1 , wherein the adjusting groove are a spiral-shaped groove. 
   
   
       5 . The golf club head as claimed in  claim 4 , wherein the number of spirals regarding the spiral-shaped groove is determined by the yield strength of the golf club head. 
   
   
       6 . The golf club head as claimed in  claim 1 , wherein the depth of the adjusting groove is determined by the yield strength of the golf club head. 
   
   
       7 . The golf club head as claimed in  claim 1 , wherein the depth of the adjusting groove is substantially between 0.1 mm and 1 mm. 
   
   
       8 . The golf club head as claimed in  claim 1 , wherein the depth of the adjusting groove is substantially between 0.5 mm and 0.7 mm. 
   
   
       9 . The golf club head as claimed in  claim 1 , wherein the material of the golf club head is stainless steel. 
   
   
       10 . The golf club head as claimed in  claim 1 , wherein the neck portion has a second peripheral surface, and the adjusting grooves is further disposed around the second peripheral surface of the neck portion. 
   
   
       11 . A golf club head, comprising:
 a main body having a heel portion and a toe portion;   a neck portion connected to the heel portion of the main body, wherein the neck portion has a first peripheral surface;   a hosel connected to the main body via the neck portion for receiving a club shaft; and   at least one adjusting groove formed around the first peripheral surface of the neck portion.   
   
   
       12 . The golf club head as claimed in  claim 11 , wherein the adjusting groove is a ring-shaped groove. 
   
   
       13 . The golf club head as claimed in  claim 11 , wherein the adjusting groove are a plurality of square grooves formed around the first peripheral surface of the neck portion, wherein every two adjacent square grooves are spaced from each other at a predetermined interval. 
   
   
       14 . The golf club head as claimed in  claim 11 , wherein the adjusting groove are a spiral-shaped groove. 
   
   
       15 . The golf club head as claimed in  claim 14 , wherein the number of spirals regarding the spiral-shaped groove is determined by the yield strength of the golf club head. 
   
   
       16 . The golf club head as claimed in  claim 11 , wherein the depth of the adjusting groove is determined by the yield strength of the golf club head material. 
   
   
       17 . The golf club head as claimed in  claim 11 , wherein the depth of the adjusting groove is substantially between 0.1 mm and 1 mm. 
   
   
       18 . The golf club head as claimed in  claim 11 , wherein the depth of the adjusting groove is substantially between 0.5 mm and 0.7 mm. 
   
   
       19 . The golf club head as claimed in  claim 11 , wherein the material of the golf club head is stainless steel. 
   
   
       20 . The golf club head as claimed in  claim 11 , wherein the hosel has a second peripheral surface, and the adjusting grooves is further disposed around the second peripheral surface of the hosel.