Adjustable golf club shaft and hosel assembly
An adjustable shaft and hosel assembly allows for dependent and independent adjustment of a golf club's face angle, loft angle, and lie angle. The adjustable shaft and hosel assembly comprises a shaft sleeve, a hosel portion, and a ball joint, wherein the ball joint is located either on the shaft sleeve or the hosel portion and fits within, and is rotatable along various axes within, a socket.
1. An adjustable golf club head comprising:
a body comprising a face, a sole, a crown, and a hosel comprising a hosel bore;
a shaft sleeve comprising a shaft sleeve axis, a joint connection having a threaded joint bore, and a shaft-receiving bore having a bore axis that is coaxial with the shaft sleeve axis;
a fitting member sized to fit within the hosel bore proximate the crown, the fitting member comprising a fitting member bore sized to receive the joint connection;
a first wheel having a first bore with a first diameter;
a second wheel having a second bore with a second diameter that is smaller than the first diameter; and
a fastener comprising a head and a threaded body, wherein the threaded body engages the threaded joint bore,
wherein the threaded body of the fastener fits within the first and second bores,
wherein the fastener affixes the first and second wheels to the body, and
wherein an angle between the shaft sleeve axis and the body can be adjusted by rotating the first and second wheels.
2. The adjustable golf club head of claim 1 , wherein the joint connection protrudes from a lower portion of the shaft sleeve, and wherein the joint connection comprises at least two planar sides and at least two curved sides.
3. The adjustable golf club head of claim 2 , wherein the fitting member can move within the hosel bore along a first axis, and wherein the joint connection can move within the fitting member along a second axis that is perpendicular to the first axis.
4. The adjustable golf club head of claim 1 , wherein the golf club head is a driver head.
5. The adjustable golf club head of claim 1 , wherein the shaft sleeve does not rotate around the bore axis by more than 5 degrees when a user makes angular adjustments.
6. The adjustable golf club head of claim 1 , wherein the first and second wheels each comprise angle indicators on their exterior surfaces.
7. The adjustable golf club head of claim 1 , wherein the first bore provides a pivot surface and the second wheel causes the threaded body of the fastener to move along the pivot surface when the second wheel is turned.
8. The adjustable golf club head of claim 1 , wherein each of the first and second wheels is disposed within and accessible via an opening in the sole.
9. The adjustable golf club head of claim 1 , wherein the first wheel is disposed closer to the head than the second wheel.
10. The adjustable golf club head of claim 9 , wherein the first wheel is capable of moving the shaft sleeve 360° around a hosel axis.
11. The adjustable golf club head of claim 9 , wherein a portion of the second wheel is disposed within the first bore.
12. The adjustable golf club head of claim 1 , further comprising a shaft having graphics and a grip reminder, wherein the shaft is at least partially disposed within the shaft sleeve, and wherein the graphics and the grip reminder do not rotate by more than 5 degrees around the bore axis when the first or second wheels are adjusted.