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 having a hosel bore;
a shaft sleeve comprising a shaft sleeve axis and a shaft-receiving bore having a bore axis that is coaxial with the shaft sleeve axis;
a ball joint comprising a threaded joint bore;
a socket sized to receive the ball joint;
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 each of the ball joint and the socket is faceted.
3. The adjustable golf club head of claim 1 , wherein the ball joint is disposed on the shaft sleeve, and wherein the socket is disposed in the hosel bore.
4. The adjustable golf club head of claim 1 , wherein the hosel is integrally formed with the golf club head.
5. The adjustable golf club head of claim 1 , wherein the golf club head is a driver head.
6. 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.
7. The adjustable golf club head of claim 1 , wherein the first and second wheels each comprise angle indicators on their exterior surfaces.
8. 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.
9. 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.
10. The adjustable golf club head of claim 1 , wherein the first bore has the dimensions of 1° by 1 inch by R0.0175 inch.
11. The adjustable golf club head of claim 1 , wherein the first wheel is disposed closer to the head than the second wheel.
12. The adjustable golf club head of claim 11 , wherein the first wheel is capable of moving the shaft sleeve 360° around a hosel axis.