Golf club with added bond area ferrule

Abstract

A ferrule for an iron-type golf club has multiple, discrete bonding areas to more securely join a shaft of the club to a hosel of a club head. The ferrule includes at least two discrete bonding areas for joining with the hosel, and a third, discrete bonding area for joining with the shaft. A top half of the ferrule is tapered to provide a visually appealing transition between the shaft and the hosel.

1 . A golf club, comprising:
 a shaft having a shaft connection end and defining a shaft exterior surface;   a club head comprising a body, a sole, a top opposite the sole, a toe, a heel opposite the toe, and a hosel, wherein the hosel comprises a hosel interior surface defining a hosel bore, a hosel exterior surface, and a hosel connection section;   a ferrule for joining the hosel connection section to the shaft connection end, the ferrule comprising:
 a transition section having a transition exterior surface; 
 an insertion section coupled to the transition section and comprising:
 an inner wall sized for insertion into the hosel bore, the inner wall having an inner wall exterior surface defining a first hosel-bonding area facing the hosel interior surface, and an inner wall interior surface sized to receive the shaft connection end and defining a shaft-bonding area facing the shaft exterior surface; and 
 an outer wall spaced from and surrounding at least a portion of the inner wall, the outer wall having an outer wall interior surface defining a second hosel-bonding area facing the hosel exterior surface; 
 wherein the outer wall interior surface and the inner wall exterior surface define a receptacle sized to receive the hosel connection section. 
 
   
     
     
         2 . The golf club of  claim 1 , wherein:
 the outer wall has an outer wall length; and   the inner wall has an inner wall length greater than the outer wall length.   
     
     
         3 . The golf club of  claim 1 , wherein the inner wall comprises a distal end sized for insertion into the hosel bore, and a cap extends across the distal end of the inner wall. 
     
     
         4 . The golf club of  claim 1 , wherein the transition exterior surface comprises a frustoconical shape. 
     
     
         5 . The golf club of  claim 4 , wherein:
 the hosel connection section comprises an annular shoulder joining a first hosel connection section outer surface to a second hosel connection section outer surface; and   the outer wall extends over the second hosel connection section outer surface.   
     
     
         6 . The golf club of  claim 1 , further comprising a relief port extending through the ferrule from the receptacle to the outer wall exterior surface or the transition exterior surface. 
     
     
         7 . The golf club of  claim 1 , wherein the ferrule comprises a ferrule material of acrylonitrile butadiene styrene or aluminum. 
     
     
         8 . The golf club of  claim 1 , further comprising a tip weight disposed in the hosel bore and between the ferrule and the club head. 
     
     
         9 . The golf club of  claim 1 , wherein the ferrule comprises a notch formed between the transition section and the insertion section. 
     
     
         10 . The golf club of  claim 1 , wherein the outer wall defines an outer wall length that is at least 040 inch. 
     
     
         11 . A ferrule for joining a shaft, comprising a shaft connection end and defining a shaft exterior surface, to a golf club head, comprising a hosel having a hosel interior surface defining a hosel bore, a hosel exterior surface, and a hosel connection section, the ferrule comprising:
 a transition section having a ferrule transition exterior surface;   an insertion section coupled to the transition section and comprising:   an inner wall sized for insertion into a hosel bore of the golf club head, the inner wall having an inner wall exterior surface defining a first hosel-bonding area facing the hosel interior surface, and an inner wall interior surface sized to receive a connection end of the shaft and defining a shaft-bonding area facing the shaft exterior surface;   an outer wall spaced from and surrounding at least a portion of the inner wall, the outer wall having an outer wall interior surface defining a second hosel-bonding area facing the hosel exterior surface;   wherein the outer wall interior surface and the inner wall exterior surface define a receptacle sized to receive a hosel connection section of the golf club head.   
     
     
         12 . The ferrule of  claim 11 , wherein:
 the outer wall has an outer wall length; and   the inner wall has an inner wall length greater than the outer wall length.   
     
     
         13 . The ferrule of  claim 11 , wherein the inner wall comprises a distal end sized for insertion into the hosel bore, and a cap extends across the distal end of the inner wall. 
     
     
         14 . The ferrule of  claim 11 , further comprising a relief port extending through the ferrule from the receptacle to the outer wall exterior surface or the transition exterior surface. 
     
     
         15 . The ferrule of  claim 11 , wherein the ferrule comprises a ferrule material of acrylonitrile butadiene styrene or aluminum. 
     
     
         16 . The ferrule of  claim 11 , further comprising a notch formed between the transition section and the insertion section. 
     
     
         17 . The ferrule of  claim 11 , wherein the outer wall defines an outer wall length that is at least 040 inch. 
     
     
         18 . A golf club connection assembly for joining a shaft, comprising a shaft connection end and defining a shaft exterior surface, to a golf club head, comprising a hosel having a hosel interior surface defining a hosel bore, a hosel bore bottom end, a hosel exterior surface, and a hosel connection end, the golf club connection assembly comprising:
 a ferrule, comprising;
 a transition section having a ferrule transition exterior surface; 
 an insertion section coupled to the transition section and comprising:
 an inner wall sized for insertion into a hosel bore of the golf club head, the inner wall having an inner wall exterior surface defining a first hosel-bonding area facing the hosel interior surface, and an inner wall interior surface sized to receive a connection end of the shaft and defining a shaft-bonding area facing the shaft exterior surface; and 
 an outer wall spaced from and surrounding at least a portion of the inner wall, the outer wall having an outer wall interior surface defining a second hosel-bonding area facing the hosel exterior surface; 
 wherein the outer wall interior surface and the inner wall exterior surface define a receptacle sized to receive a hosel connection section of the golf club head; and 
 
   a tip weight disposed in the hosel bore and between the hosel bore bottom end and the ferrule.   
     
     
         19 . The golf club connection assembly of  claim 18 , further comprising a relief port extending through the ferrule from the receptacle to the outer wall exterior surface or the transition exterior surface. 
     
     
         20 . The golf club connection assembly of  claim 18 , wherein the ferrule comprises a notch formed between the transition section and the insertion section.