Grip with Torsional Stiffness

Abstract

The present disclosure relates to an improved hand grip 20,30, 30, 40, 50 for a shock imparting implement, like a golf club grip, that provides a selected portion A of the cap 22, 32, 42, 52 on the grip with a greater hardness than the portion B of the body 24, 34, 44, 54 of the grip. The selected portion A of the cap 22, 32, 42, 52 improves the torsional stiffness to resist twisting during the swing of the implement.

We claim: 
     
         1 . A golf club grip, comprising:
 an elongated tubular body having a hollow core constructed to slip on to a golf club shaft, said body further including a cap at an upper end of said body and an open tip at a lower end for receiving the golf club shaft, said cap having a portion extending into said body a selected distance, said cap having a hardness value greater than said body, wherein said selected distance of said extending portion of said cap corresponds substantially to a selected zone at the inner base of an open hand of a user.   
     
     
         2 . The grip as recited in  claim 1 , wherein said extending portion of said cap includes at least one annular groove and at least one annular ring for co-molding said cap with said body. 
     
     
         3 . The grip as recited in  claim 2 , wherein said extending portion of said cap includes a plurality of annular grooves and a plurality of annular rings for co-molding said cap with said body. 
     
     
         4 . The grip as recited in  claim 1 , wherein said material in said cap comprises a hardness value ranging from approximately 60 Shore A to approximately 90 Shore A, and said body including said tip end having a hardness value ranging from approximately 38 to 60 Shore A. 
     
     
         5 . The grip as recited in  claim 1 , wherein said extending portion of said cap comprises a plurality of branch elements constructed to provide stiffness to a selected portion of the grip. 
     
     
         6 . The grip as recited in  claim 5 , wherein said branch elements extend from an inner edge of said cap and have a cylindrical form. 
     
     
         7 . The grip as recited in  claim 5 , wherein said branch elements have a triangular shape constructed to provide stiffness to a selected portion of the grip. 
     
     
         8 . A hand grip, comprising:
 a tubular body having a hollow core constructed to slip on to a shaft of an implement, said body further including a cap at an upper end of said body and an open tip at a lower end for receiving the shaft, said cap having a portion extending into said body a selected distance, said cap having a hardness value greater than said body, wherein said selected distance of said extending portion of said cap corresponds substantially to a selected zone at the inner base of an open hand of a user.   
     
     
         9 . The grip as recited in  claim 8 , wherein said extending portion of said cap includes at least one annular groove and at least one annular ring for co-molding said cap with said body. 
     
     
         10 . The grip as recited in  claim 9 , wherein said extending portion of said cap includes a plurality of annular grooves and a plurality of annular rings for co-molding said cap with said body. 
     
     
         11 . The grip as recited in  claim 8 , wherein said material in said cap comprises a hardness value ranging from approximately 60 Shore A to approximately 90 Shore A, and said body including said tip end having a hardness value ranging from approximately 38 to 60 Shore A. 
     
     
         12 . The grip as recited in  claim 8 , wherein said extending portion of said cap comprises a plurality of branch elements constructed to provide stiffness to a selected portion of the grip. 
     
     
         13 . The grip as recited in  claim 12 , wherein said branch elements extend from an inner edge of said cap and have a cylindrical form. 
     
     
         14 . The grip as recited in  claim 5 , wherein said branch elements have a triangular shape constructed to provide stiffness to a selected portion of the grip. 
     
     
         15 . The grip as recited in  claim 1 , further comprising first, second, and third indicia, said first indicia having a first selected width and depth, said second indicia having a second selected width and depth different from said first indicia, and said third indicia having a selected width and depth different from both said first and second indicia. 
     
     
         16 . The grip as recited in  claim 8 , further comprising first, second, and third indicia, said first indicia having a first selected width and depth, said second indicia having a second selected width and depth different from said first indicia, and said third indicia having a selected width and depth different from both said first and second indicia.