Golf club head with elastic weight members

Abstract

A golf club head includes a body having a striking plate and an assembling portion, a first elastic weight member including an elastic matrix and a metal powder mixed in the elastic matrix, and a second elastic weight member including an elastic matrix and a metal powder mixed in the elastic matrix of the second elastic weight member. The second elastic weight member includes a specific density and an elastic coefficient different from those of the first elastic weight member. The first elastic weight member and the second elastic weight member are mounted in the assembling portion of the body to form a golf club head. The first elastic weight member and the second elastic weight member adjust a center of gravity of the golf club head and provide an elastic vibration-absorbing effect.

1 . A golf club head comprising: 
 a body comprising a striking plate and an assembling portion;    at least one first elastic weight member comprising an elastic matrix and a metal powder mixed in the elastic matrix; and    at least one second elastic weight member comprising an elastic matrix and a metal powder mixed in the elastic matrix, the second elastic weight member including a specific density and an elastic coefficient different from those of the first elastic weight member;    the first elastic weight member and the second elastic weight member being mounted in the assembling portion of the body to form a golf club head, with the first elastic weight member and the second elastic weight member adjusting a center of gravity of the golf club head and providing an elastic vibration-absorbing effect.    
   
   
       2 . The golf club head as claimed in  claim 1 , wherein the elastic matrix of the first elastic weight member and the elastic matrix of the second elastic weight member are selected from a group consisting of resins, rubbers, polyurethane, thermoplastic elastomers, and high-molecular elastic materials.  
   
   
       3 . The golf club head as claimed in  claim 1 , wherein the metal powder of the first elastic weight member and the metal powder of the second elastic weight member comprise powders of a group consisting of tungsten, lead, molybdenum, copper, cobalt, nickel, niobium, iron, manganese, tin, chromium, zinc, vanadium, titanium, aluminum, magnesium, and oxides and compounds thereof.  
   
   
       4 . The golf club head as claimed in  claim 1 , wherein the first elastic weight member is in contact with a rear side of the striking plate.  
   
   
       5 . The golf club head as claimed in  claim 4 , wherein the specific density of the first elastic weight member is smaller than that of the second elastic weight member.  
   
   
       6 . The golf club head as claimed in  claim 4 , wherein the elastic coefficient of the first elastic weight member is greater than that of the second elastic weight member.  
   
   
       7 . The golf club head as claimed in  claim 1 , wherein the second elastic weight member is located on a residual vibration concentrating area of the body.  
   
   
       8 . The golf club head as claimed in  claim 7 , wherein the residual vibration concentrating area of the body is located on a toe and a heel of the body.  
   
   
       9 . The golf club head as claimed in  claim 1 , wherein the first elastic weight member and the second elastic weight member are pre-manufactured before mounting to the assembling portion of the body.  
   
   
       10 . The golf club head as claimed in  claim 1 , wherein at least one of the first elastic weight member and the second elastic weight member is formed in the assembling portion of the body by injection molding.  
   
   
       11 . The golf club head as claimed in  claim 1 , wherein the second elastic weight member is partially embedded in the first elastic weight member.  
   
   
       12 . The golf club head as claimed in  claim 1 , wherein at least one of the first elastic weight member and the second elastic weight member further comprises a metal weight member embedded therein.  
   
   
       13 . The golf club head as claimed in  claim 4 , wherein the second elastic weight member extends in a direction parallel to that of the striking plate and is in contact with the first elastic weight member.  
   
   
       14 . The golf club head as claimed in  claim 13 , further comprising a third elastic weight member extending in a direction parallel to that of the striking plate and in contact with the second elastic weight member.  
   
   
       15 . A golf club head comprising: 
 a body comprising a striking plate and an assembling portion;    at least one elastic weight member comprising a matrix having a low specific density and a high-specific-density powder mixed in the elastic matrix; and    at least one elastic member comprising a matrix having a low specific density;    the elastic weight member and the elastic member being mounted in the assembling portion of the body to form a golf club head, with the elastic weight member and the elastic member adjusting a center of gravity of the golf club head and providing an elastic vibration-absorbing effect.    
   
   
       16 . The golf club head as claimed in  claim 15 , wherein the elastic weight member comprises a specific density different from that of the elastic member.  
   
   
       17 . The golf club head as claimed in  claim 15 , wherein the elastic weight member comprises an elastic coefficient different from that of the elastic member.  
   
   
       18 . The golf club head as claimed in  claim 15 , wherein the low-specific-density matrix of the elastic weight member and the low-specific-density matrix of the elastic member are selected from a group consisting of resins, rubbers, polyurethane, thermoplastic elastomers, and high-molecular elastic materials.  
   
   
       19 . The golf club head as claimed in  claim 15 , wherein the high-specific-density powder of the elastic weight member comprise powders of a group consisting of tungsten, lead, molybdenum, copper, cobalt, nickel, niobium, iron, manganese, tin, chromium, zinc, vanadium, titanium, aluminum, magnesium, and oxides and compounds thereof.  
   
   
       20 . The golf club head as claimed in  claim 15 , wherein the elastic member is in contact with a rear side of the striking plate.  
   
   
       21 . The golf club head as claimed in  claim 20 , wherein the specific density of the elastic member is smaller than that of the elastic weight member.  
   
   
       22 . The golf club head as claimed in  claim 20 , wherein the elastic coefficient of the elastic member is greater than that of the elastic weight member.  
   
   
       23 . The golf club head as claimed in  claim 15 , wherein the elastic weight member is located on a residual vibration concentrating area of the body.  
   
   
       24 . The golf club head as claimed in  claim 23 , wherein the residual vibration concentrating area of the body is located on a toe and a heel of the body.  
   
   
       25 . The golf club head as claimed in  claim 15 , wherein the elastic weight member and the elastic member are pre-manufactured before mounted to the assembling portion of the body.  
   
   
       26 . The golf club head as claimed in  claim 15 , wherein at least one of the elastic weight member and the elastic member is formed in the assembling portion of the body by injection molding.  
   
   
       27 . The golf club head as claimed in  claim 15 , wherein the elastic weight member is partially embedded in the elastic member.  
   
   
       28 . The golf club head as claimed in  claim 15 , wherein at least one of the elastic weight member and the elastic member further comprises a metal weight member embedded therein.  
   
   
       29 . The golf club head as claimed in  claim 20 , wherein the elastic weight member extends in a direction parallel to that of the striking plate and is in contact with the elastic member.  
   
   
       30 . The golf club head as claimed in  claim 29 , further comprising another elastic weight member extending in a direction parallel to that of the striking plate and in contact with the elastic weight member.