Multiple material driver-type golf club head

Abstract

A driver-type golf club head having a composite crown is disclosed herein. The driver-type golf club head includes a subassembly including a cast face component and a stamped sole component, and a compression molded crown component which is bonded to the subassembly. Each of the subassembly and the crown component has a non-overlapping bonding flange that bonds with an interior surface.

1 . A driver-type golf club head comprising:
 a subassembly comprising a face component and a sole component, the face component section comprising a striking plate section and a return section extending rearward from a perimeter of the striking plate section, the return section having a bonding flange formed as an undercut extending rearward approximately 0.200 inch from a top rearward edge of the return section, the subassembly composed of a titanium alloy material and comprising at least 70% of the mass of the golf club head;   a crown component composed of a compression molded graphite material, the crown component having top section and a bonding flanged substantially perpendicular to the top section, the bonding formed as an undercut relative to an edge of the top section;   wherein the crown component is adhesively bonded to the subassembly with an interior surface of a front portion of the top section of the crown component bonded to an exterior surface of the bonding flange of the return section of the face component of the subassembly and an exterior surface of the bonding flange of the crown component bonded to an interior surface of a portion of the sole component of the subassembly.   
     
     
         2 . The driver-type golf club head according to  claim 1  wherein the golf club head has a loft angle of at least thirteen degrees. 
     
     
         3 . The driver-type golf club head according to  claim 1  wherein the fairway-wood type golf club head has a volume of 460 cubic centimeters. 
     
     
         4 . The driver-type golf club head according to  claim 1  wherein the subassembly further comprises a hosel. 
     
     
         5 . The driver-type golf club head according to  claim 4  wherein the hosel is an exterior hosel. 
     
     
         6 . The driver-type golf club head according to  claim 4  wherein the hosel is an interior hosel. 
     
     
         7 . A driver-type golf club head comprising:
 a subassembly having a sole component and a face component with a bonding flange formed as an undercut extending rearward;   a crown component having top section and a bonding flanged substantially perpendicular to the top section, the bonding formed as an undercut relative to an edge of the top section;   wherein the crown component is bonded to the subassembly with an interior surface of a front portion of the top section of the crown component bonded to an exterior surface of the bonding flange of the face component of the subassembly and an exterior surface of the bonding flange of the crown component bonded to an interior surface of a portion of the sole component of the subassembly.   
     
     
         8 . The driver-type golf club head according to  claim 7  wherein the subassembly is composed of a titanium alloy material. 
     
     
         9 . The driver-type golf club head according to  claim 7  wherein the subassembly is composed of a stainless steel material. 
     
     
         10 . The driver-type golf club head according to  claim 7  wherein the crown component is composed of a non-metal material.