Adjustable golf club and system and associated golf club heads and shafts

摘要

In general, aspects of this invention relate to golf clubs or golf club components incorporating adjustment members that permit ready adjustability of golf club parameters and/or interchangeability of golf club components to change a golf club configuration, and methods for providing golf clubs. According to aspects of this invention, an adjustment member may be utilized to allow the adjustability of a golf club parameter to change a golf club configuration, while ensuring there is substantially no change to other club or club head variables, parameters or characteristics. According to another aspect of this invention, an adjustment member may be utilized to allow the adjustability of two golf club parameters independently to change a golf club configuration, while ensuring there is substantially no change to other club or club head variables, parameters or characteristics.

主权项

1. A golf club head comprising:
a body defining a ball striking surface, a crown, a sole, a hosel, a heel, and a toe; and an adjustment member having a shaft adapter with a shaft adapter axis with an angle greater than 45 degrees to the horizontal, the shaft adapter operably connected to the body and rotatable about the shaft adapter axis, andwherein the body and adjustment member are structured such that the adjustment member independently adjusts a loft angle among a first plurality of positions and the adjustment member independently adjusts a second parameter associated with the body among a second plurality of positions wherein in response to the adjustment of the loft angle and the second parameter, a third parameter associated with the body remains substantially unchanged within a predetermined tolerance, wherein the third parameter is one of the following: the golf club head's location of a center of gravity, a face center, or a sole contact point, wherein each location is measured from a hosel origin point located at an intersection of the shaft adapter axis and an uppermost edge the shaft adapter, and
further wherein when the third parameter is the location of a center of gravity of the golf club head, and the predetermined tolerance for the location of the center of gravity is approximately 3 mm from a reference center of gravity determined before the adjustment of the loft angle and the second parameters, and wherein when the third parameter is a location of the face center of the golf club head, and the predetermined tolerance for the location of the face center is approximately 3 mm from a reference face center determined before the adjustment of the loft angle and the second parameters, and wherein when the third parameter is the sole contact point, the predetermined tolerance for the location of the sole contact point is 4 mm from a reference sole contact point determined before the adjustment of the loft angle and the second parameters.