Golf club head

Abstract

A golf club head comprises a body having a face, a crown and a sole together defining an interior cavity. The body having a channel located on the sole and extending generally from a heel end of the body to a toe end of the body. A weight member movably positioned within the channel such that a position of the weight member within the channel is able to be adjusted, thereby adjusting a location of a center of gravity of the body. Additionally, adjustment of the weight member provides a maximum x-axis adjustment range of the position of the center of gravity (Max ΔCGx) that is greater than 2 mm and a maximum z-axis adjustment range of the center of gravity (Max ΔCGz) that is less than 2 mm.

We claim: 
     
         1 . A golf club head comprising:
 a body having a face, a crown and a sole together defining an interior cavity, the body having a sliding weight track with at least one ledge extending an entire length of the sliding weight track;   at least one weight member configured to clamp the at least one ledge at selected locations along the sliding weight track;   the at least one weight member is located entirely external to the interior cavity of the body and comprises an outer member, an inner member, and a threaded fastening bolt that connects the outer member to the inner member;   a weight installation cavity located in a portion of the sliding weight track in which the at least one ledge extends;   a coefficient of restitution (COR) feature located on the sole of the golf club head;   wherein the weight installation cavity being configured to allow insertion of at least the inner member within the sliding weight track.   
     
     
         2 . The golf club head of  claim 1 , wherein at least one of the inner member and the outer member are noncircular and shaped to prevent rotation upon tightening the threaded fastening bolt. 
     
     
         3 . The golf club head of  claim 2 , further comprising a plurality of projections located on the at least one ledge, wherein the plurality of projections have a size and shape adapted to help locate the at least one weight member. 
     
     
         4 . The golf club head of  claim 3 , wherein when the at least one weight member is secured to the sliding weight track the outer member engages an outward-facing surface of the at least one ledge and the inner member engages an inward-facing surface of the at least one ledge, and the threaded fastening bolt has a threaded shaft that extends through a first aperture of the outer member and engages mating threads located in a second aperture of the inner member. 
     
     
         5 . The golf club head of  claim 1 , further comprising a heel opening located on a heel end of the body, the heel opening configured to receive a fastening member; and
 a head-shaft connection system including a sleeve that is secured by the fastening member in a locked position, the head-shaft connection system configured to allow the golf club head to be adjustably attachable to a golf club shaft in a plurality of different positions resulting in an adjustability range of different combinations of loft angle, face angle, or lie angle.   
     
     
         6 . The golf club head of  claim 1 , wherein the COR feature is a channel. 
     
     
         7 . The golf club head of  claim 1 , wherein the COR feature is a through slot. 
     
     
         8 . The golf club head of  claim 1 , wherein the golf club head has a volume between 80 cm 3  and 150 cm 3 . 
     
     
         9 . The golf club head of  claim 1 , wherein the golf club head has a volume between 130 cm 3  and 220 cm 3 . 
     
     
         10 . A golf club head comprising:
 a body having a face, a crown and a sole together defining an interior cavity, the body having a sliding weight track with at least one ledge extending from a first end of the sliding weight track to a second end of the sliding weight track;   at least one weight member configured to clamp the at least one ledge at selected locations along the sliding weight track, the at least one weight member comprises an outer member, an inner member, and a threaded fastening bolt that connects the outer member to the inner member;   a weight installation cavity located in a portion of the sliding weight track in which the at least one ledge extends, wherein the weight installation cavity being configured to allow insertion of the inner member within the sliding weight track and the inner member is noncircular and shaped to prevent rotation within the sliding weight track;   a coefficient of restitution (COR) feature located on the sole of the golf club head;   a heel opening located on a heel end of the body, the heel opening configured to receive a fastening member; and   a head-shaft connection system including a sleeve that is secured by the fastening member in a locked position, the head-shaft connection system configured to allow the golf club head to be adjustably attachable to a golf club shaft in a plurality of different positions resulting in an adjustability range of different combinations of loft angle, face angle, or lie angle.   
     
     
         11 . The golf club head of  claim 10 , wherein the weight installation cavity is located on a portion of the sliding weight track where the at least one ledge may be clamped by the weight member. 
     
     
         12 . The golf club head of  claim 10 , wherein the COR feature is a through slot having a slot width between 7 mm and 12 mm. 
     
     
         13 . The golf club head of  claim 10 , wherein the outer member and the inner member are noncircular and are shaped to prevent rotation when the threaded fastening bolt is tightened. 
     
     
         14 . The golf club head of  claim 13 , wherein when the at least one weight member is secured to the sliding weight track the outer member engages an outward-facing surface of the at least one ledge and the inner member engages an inward-facing surface of the at least one ledge, and the threaded fastening bolt has a threaded shaft that extends through a first aperture of the outer member and engages mating threads located in a second aperture of the inner member. 
     
     
         15 . The golf club head of  claim 10 , further comprising a plurality of projections located on the at least one ledge, wherein the plurality of projections have a size and shape adapted to help locate the at least one weight member along the sliding weight track. 
     
     
         16 . A golf club head comprising:
 a body having a face, a crown and a sole together defining an interior cavity,   a sliding weight track including at least one ledge extending within the sliding weight track and a weight installation cavity located along a useable portion of the sliding weight track;   at least one weight member movably positioned within the sliding weight track and configured to clamp the at least one ledge at two or more positions along the sliding weight track;   a coefficient of restitution (COR) feature located on the sole of the golf club head, wherein the COR feature is a through slot;   a heel opening located on a heel end of the body, the heel opening configured to receive a fastening member; and   a head-shaft connection system including a sleeve that is secured by the fastening member in a locked position, the head-shaft connection system configured to allow the golf club head to be adjustably attachable to a golf club shaft in a plurality of different positions resulting in an adjustability range of different combinations of loft angle, face angle, or lie angle;   wherein at least a portion of the sliding weight track is located on a heel side of the body and at least a portion of the sliding weight track is located on a toe side of the body;   wherein movement of the at least one weight member produces a change in the head origin z-axis (CGz) coordinate of less than 1.0 mm throughout the adjustability range;   wherein a single tool is used for adjusting the at least one weight and the head-shaft connection system;   wherein over at least a portion of the sliding weight track a width of the sliding weight track is between about 8 mm and about 20 mm, and a depth of the sliding weight track is be between about 6 mm and about 20 mm.   
     
     
         17 . The golf club head of  claim 16 , wherein the golf club head has a weight between about 210 grams and 240 grams, a Delta 1 value less than 14 mm, and a CGz less than −3 mm. 
     
     
         18 . The golf club head of  claim 16 , wherein the crown is formed from a composite material having a density less than about 2 g/cc. 
     
     
         19 . The golf club head of  claim 16 , wherein adjusting the position of the at least one weight member within the sliding weight track produces a change in the head origin y-axis (CGy) coordinate between 2.0 mm and 6.0 mm throughout the adjustability range. 
     
     
         20 . The golf club head of  claim 16 , wherein adjusting the position of the at least one weight member within the sliding weight track produces a change in the head origin y-axis (CGy) coordinate of less than 1.0 mm throughout the adjustability range, and produces a change in the head origin x-axis (CGx) coordinate of at least 4.0 mm throughout the adjustability range.