Improved sporting articles

Abstract

Sporting articles are provided that have improved aerodynamics, including a golf club. The golf club includes a head, the head including a plurality of dimples, configured to decrease drag of the head when swung by the user, and a chamber defined in the head, the chamber including one or more weights movable within the chamber to adjust a balance of the golf club head. The movable weights enable adjustments to be made to compensate for changes in characteristics of the golf club associated with the increased aerodynamic efficiency.

1 . A golf club including a head, the head including
 a plurality of dimples, configured to decrease drag of the head when swung by the user; and   an internal chamber defined in the head, the internal chamber including one or more internal weights movable within the internal chamber to adjust a balance of the golf club head.   
     
     
         2 . The golf club head of  claim 1 , wherein the dimples comprise spherical dimples or hexagonal dimples. 
     
     
         3 . The golf club head of  claim 1 , wherein the dimples are between about 0.01 mm and 1.5 mm in depth and about 0.5 mm and 3 mm in diameter. 
     
     
         4 . The golf club head of  claim 1 , wherein one or more of the dimples are located on a striking face of the golf club head, but are configured to not influence a golf ball struck with the striking face. 
     
     
         5 . The golf club head of  claim 4 , wherein the striking face includes a plurality of elongate grooves, and at least some of the dimples are positioned between adjacent grooves. 
     
     
         6 . The golf club head of  claim 1 , wherein the dimples include first dimples and second dimples, the first dimples substantially uniform in size and shape, the second dimples substantially uniform in size and shape, and the first dimples different to the second dimples in at least one of size and shape. 
     
     
         7 . The golf club head of  claim 1 , wherein at least some of the dimples are arranged in rows, the rows parallel or perpendicular to an edge of the golf club. 
     
     
         8 . The golf club head of  claim 2 , at least 50% of a surface of the head is covered with dimples. 
     
     
         9 . The golf club head of  claim 1 , wherein the weights are adjustable in position from an outside of the head of the golf club. 
     
     
         10 . The golf club head of  claim 1 , wherein the chamber is elongate, substantially in a direction perpendicular to a striking face of the golf club and wherein the chamber is substantially uniform in cross-section. 
     
     
         11 . The golf club head of  claim 1 , including one or more weights biased against a front face of the club with a biasing member, such as a spring. 
     
     
         12 . The golf club head of  claim 11 , wherein the one or more weights are able to move fractionally within the chamber as the golf club hits a ball, to generate a pinging sound when the club hits a ball. 
     
     
         13 . The golf club head of  claim 1 , including a threaded rod, configured to engage with a weight in the chamber, to enable the weight to be moved along a length of the chamber through rotation of the threaded rod. 
     
     
         14 . The golf club head of  claim 1 , wherein the chamber comprises a cylindrical chamber and the one or more weights are disc-shaped. 
     
     
         15 . The golf club head of  claim 1 , wherein the chamber is centrally located in the golf club head. 
     
     
         16 . The golf club head of  claim 1 , wherein the chamber is supported by one or more arms and an inside surface of the golf club head. 
     
     
         17 . The golf club head of  claim 1 , comprising a channel defined in a surface of the golf club head, wherein at least a subset of the dimples are defined in the channel. 
     
     
         18 . The golf club head of  claim 17 , wherein the channel is defined on a crown of the golf club head. 
     
     
         19 . The golf club head of  claim 17 , wherein the channel is tapered. 
     
     
         20 . The golf club head of  claim 17 , wherein the channel comprises a plurality of channels.