Golf club heads

Abstract

Disclosed golf club heads include a weight channel positioned in the sole and defining a path along the sole. A weight member positioned in the weight channel can be adjusted to any of a range of selectable positions to adjust mass properties of the golf club head. A fastener secures the weight member in any of the selectable positions. The weight member can have ribbed weight projections on an inward-facing surface that engage ribbed projections of the weight channel when the fastener is tightened. A compressible spacer positioned between the weight member and the body inside the weight channel can expand to create a gap between the ribbed weight projections of the weight member and the ribbed projections of the weight channel when the fastener is loosened.

1 . A golf club head comprising:
 a body defining an interior cavity, a sole defining a bottom portion of the golf club head, a crown defining a top portion of the golf club head, a face defining a forward portion of the golf club head, a rearward portion of the golf club head opposite the face, and a hosel;   a weight channel in the sole and defining a path along the sole, wherein the weight channel comprises ribbed projections on an outward-facing surface of the body;   a weight member positioned in the weight channel, the weight member being movable to any of a range of selectable positions along the path to adjust mass properties of the golf club head, wherein the weight member comprises a slot, and wherein the weight member comprises ribbed weight projections on an inward-facing surface of the weight member opposite the outward-facing surface of the weight channel;   a fastener that extends through the slot in the weight member and secures the weight member to the body in any of the selectable positions along the path, wherein when the weight member is in any of the selectable positions the fastener is secured to the body at a same fixed location on the body that is independent of the position of the weight member; and   a compressible spacer positioned between the weight member and the body inside the weight channel;   wherein when the fastener is tightened to secure the weight member at a selected position in the weight channel the compressible spacer is compressed between the weight member and the outward-facing surface of the body and the ribbed weight projections of the weight member engage the ribbed projections of the weight channel, and when the fastener is loosened the compressible spacer expands and creates a gap between the ribbed weight projections of the weight member and the ribbed projections of the weight channel.   
     
     
         2 . The club head of  claim 1 , wherein the weight channel extends in a front-rear direction along the club head. 
     
     
         3 . The club head of  claim 1 , wherein an end portion of the weight channel is configured as a weight cavity covered by an overhang portion of the sole. 
     
     
         4 . The club head of  claim 3 , further comprising a wiper attached to a forward end portion of the weight member, wherein the wiper is sized and shaped to at least partially close an unoccupied portion of the weight cavity. 
     
     
         5 . The club head of  claim 4 , wherein the weight member comprises an angled surface, and the wiper is attached to the angled surface. 
     
     
         6 . The club head of  claim 1 , wherein the compressible spacer is configured such that when the fastener is tightened a thickness dimension of the compressible spacer is reduced by 10% to 50% compared to an uncompressed state of the compressible spacer. 
     
     
         7 . The club head of  claim 1 , wherein the compressible spacer is a first compressible spacer positioned at a first end of the slot in the weight member, and the weight member further comprises a second compressible spacer positioned at a second end of the slot in the weight member. 
     
     
         8 . The club head of  claim 1 , wherein the weight channel is straight and extends along a weight channel longitudinal axis that forms an angle of −20° to 20° with a ground plane when the club head is at a normal address position. 
     
     
         9 . The club head of  claim 1 , wherein the weight member comprises weight-reducing side channels. 
     
     
         10 . The club head of  claim 1 , wherein the weight member is recessed relative to the sole so as not to contact a ground plane when the golf club head is at a normal address position. 
     
     
         11 . The club head of  claim 1 , wherein a y-axis extends in a front-rear direction, and a length of the weight member as measured along the y-axis is 40% to 70% of a length of the golf club head as measured along the y-axis. 
     
     
         12 . The club head of  claim 11 , wherein the weight channel comprises a roof that defines the outward-facing surface, and a length of the roof of the weight channel is 60% to 80% of the length of the club head. 
     
     
         13 . The club head of  claim 1 , wherein a mass of the weight member is 10% to 50% of a total mass of the club head. 
     
     
         14 . The club head of  claim 1 , wherein the weight member is movable between a first position at a first end of the weight channel and a second position at a second end of the weight channel, and the club head has a volume V Club head  of 100 cc to 320 cc. 
     
     
         15 . The club head of  claim 14 , wherein the weight member has a volume V weight  of 1 cc to 10 cc. 
     
     
         16 . The club head of  claim 15 , wherein a ratio 
       
         
           
             
               
                 V 
                 Weight 
               
               
                 V 
                 
                   Club 
                   ⁢ 
                      
                   head 
                 
               
             
           
         
       
       is 0.01 to 0.050. 
     
     
         17 . The club head of  claim 1 , wherein the weight member has a length dimension L 1  along the direction of the weight channel, sequential ribbed projections of the weight channel have a spacing d 1  between them, and wherein L 1 >d 1 . 
     
     
         18 . The club head of  claim 17 , wherein sequential ribbed weight projections of the weight member have a spacing d 2  between them, and wherein d 1 >d 2 . 
     
     
         19 . The club head of  claim 1 , wherein:
 one end portion of the weight channel is configured as a weight cavity covered by an overhang portion of the sole;   the overhang portion forms a sit pad that contacts a ground plane when the club head is in a normal address position resting on the ground plane; and   adjusting the position of the weight member along the weight channel changes a percentage of the weight member that is covered by the overhang.   
     
     
         20 . A method, comprising:
 loosening the fastener of the golf club head of  claim 1 ;   moving the weight member in the weight channel to a selected position; and   tightening the fastener to secure the weight member at the selected position in the weight channel.   
     
     
         21 . A golf club head comprising:
 a body defining an interior cavity, a sole defining a bottom portion of the golf club head, a crown defining a top portion of the golf club head, a face defining a forward portion of the golf club head, a rearward portion of the golf club head opposite the face, and a hosel;   a weight channel in the sole and defining a path along the sole, the path being oriented in a generally front-rear direction, wherein a forward end portion of the weight channel is configured as a weight cavity covered by an overhang portion of the sole, and wherein the weight channel comprises ribbed projections on an outward-facing surface of the body;   a weight member positioned in the weight channel, the weight member comprising a forward end portion and a rear end portion, the weight member being movable to any of a range of selectable positions along the path to adjust mass properties of the golf club head, wherein the weight member comprises a slot that extends in the generally front-rear direction between the forward end portion and the rear end portion, and wherein the weight member comprises ribbed weight projections on an inward-facing surface of the weight member opposite the outward-facing surface of the body;   a fastener that extends through the slot in the weight member and secures the weight member to the body in any of the selectable positions along the path, wherein when the weight member is in any of the selectable positions the fastener is secured to the body at a same fixed location on the body that is independent of the position of the weight member;   a wiper attached to the forward end portion of the weight member, wherein the wiper is sized and shaped to close an unoccupied portion of the weight cavity forward of the weight member; and   a compressible spacer positioned between the weight member and the body inside the weight channel;   wherein when the fastener is tightened to secure the weight member at a selected position in the weight channel the compressible spacer is compressed between the weight member and the outward-facing surface of the body and the ribbed weight projections of the weight member engage the ribbed projections of the weight channel, and when the fastener is loosened the compressible spacer expands and creates a gap between the ribbed weight projections of the weight member and the ribbed projections of the weight channel.   
     
     
         22 . A golf club head comprising:
 a body defining an interior cavity, a sole defining a bottom portion of the golf club head, a crown defining a top portion of the golf club head, a face defining a forward portion of the golf club head, a rearward portion of the golf club head opposite the face, and a hosel;   at least one weight member couplable to the body, the at least one weight member being movable from a first position where at least a portion of the at least one weight is forward of a center of gravity of the golf club head to a second position where at least a portion of the at least one weight is rearward of the center of gravity of the golf club head;   wherein the golf club head has a moment of inertia about an x-axis (Ixx) and a moment of inertia about a z-axis (Izz), and a balance point projection on the face measured relative to a ground plane (BP Up) when the golf club head is in a normal address position;   wherein movement of the at least one weight from the first position to the second position increases BP Up by 0.8 mm to 3.8 mm, increases Zup, and changes Delta 1 by 3 mm to 7 mm.   
     
     
         23 . The golf club head of  claim 22 , wherein when the at least one weight member is in the second position BP Up is no more than 24 mm, and when the at least one weight member is in the first position BP Up is no less than 17 mm. 
     
     
         24 . The golf club head of  claim 23 , wherein a volume of the golf club head is 120 cc to 280 cc, a peak crown height is 30 mm to 55 mm, and a mass of the golf club head is 210 g to 255 g. 
     
     
         25 . The golf club head of  claim 24 , wherein:
 a total inertia of the golf club head is a summation of Ixx of the golf club head and Izz of the golf club head;   the golf club head comprises a total inertia in the first position of 275 kg·mm 2  to 525 kg·mm 2 ; and   shifting the at least one weight member from the first position to the second position increases the total inertia of the golf club head by 55 kg·mm 2  to 175 kg·mm 2 .   
     
     
         26 . The golf club head of  claim 25 , wherein shifting the at least one weight member from the first position to the second position increases the total inertia of the golf club head by 75 kg·mm 2  to 145 kg·mm 2 . 
     
     
         27 . The golf club head of  claim 25 , wherein shifting the at least one weight member from the first position to the second position increases the total inertia of the golf club head by 65 kg·mm 2  to 95 kg·mm 2 . 
     
     
         28 . The golf club head of  claim 25 , wherein the at least one weight member having a mass that is 10% to 40% of a total mass of the golf club head, and the at least one weight member comprises a material having a density of 7 g/cc to 20 g/cc. 
     
     
         29 . The golf club head of  claim 22 , further comprising a shaft connection assembly in the hosel configured to selectively adjust a loft, a lie angle, and/or a loft and a lie angle of the golf club head.