Golf club heads and methods to manufacture golf club heads
Examples of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head may include a body portion having a toe portion, a heel portion, a top portion, a sole portion, a back portion, and a front portion. A hosel portion may have a hosel base portion attached to the top portion. A hosel upper portion may extend from the hosel base portion. A hosel transition portion may be between the hosel base portion and the hosel upper portion. The hosel transition portion may provide a gradual transition between an outer surface of the hosel base portion and an outer surface of the hosel upper portion. A shaft may be mounted on the hosel portion and may have an end portion configured to engage the hosel transition portion. Other examples and examples may be described and claimed.
1. A golf club head comprising:
a body portion having a toe portion, a heel portion, a top portion, a sole portion, a back portion, and a front portion;
a hosel portion made of aluminum, the hosel portion having a hosel base portion attached to the top portion and having a first width, a hosel upper portion extending from the hosel base portion and having a second width that is smaller than the first width, and a hosel transition portion between the hosel base portion and the hosel upper portion, the hosel transition portion being chamfered to gradually reduce a width of the hosel portion from the first width to the second width; and
a shaft mounted on the hosel portion, the shaft having an end portion with an inner transition portion configured to complement the shape of the hosel transition portion.
2. A golf club head as defined in claim 1 , wherein a portion of the end portion of the shaft is configured to complement a shape of the hosel transition portion.
3. A golf club head as defined in claim 1 , wherein the body portion includes an interior cavity, wherein the interior cavity is at least 50% filled with a polymer.
4. A golf club head as defined in claim 1 , wherein the body portion includes an interior cavity, wherein the interior cavity is at least 50% filled with an elastic polymer material, wherein the sole portion includes a sole opening to access the interior cavity, and wherein the interior cavity is filled with the elastic polymer material through the sole opening.
5. A golf club head as defined in claim 1 , further comprising a first region at or near the toe portion including a first set of weight ports with each weight port configured to receive a weight portion, and a second region at or near the heel portion including a second set of weight ports with each weight port configured to receive a weight portion.
6. A golf club head comprising:
a body portion having a toe portion, a heel portion, a top portion, a sole portion, a back portion, and a front portion;
a hosel portion made of aluminum, the hosel portion having a hosel base portion attached to the top portion and having a first width, a hosel upper portion having a second width that is smaller than the first width, and a hosel transition portion extending between the hosel base portion and the hosel upper portion, the hosel transition portion configured as a chamfer that gradually narrows in a direction from the hosel base portion to the hosel upper portion; and
a shaft mounted on the hosel portion, the shaft having an end portion with an inner transition portion configured to complement the shape of the hosel transition portion, wherein the hosel upper portion is received inside the shaft, the inner transition portion of the end portion is engaged to the hosel transition portion, and the end portion of the shaft sits atop the hosel base portion.
7. A golf club head as defined in claim 6 , wherein a portion of the end portion of the shaft is configured to complement a shape of the hosel transition portion.
8. A golf club head as defined in claim 6 , wherein the hosel base portion extends directly from the body portion and has a uniform circular axial cross section with a first diameter, wherein the hosel upper portion has a uniform circular axial cross section with a second diameter smaller than the first diameter, and wherein the hosel transition portion has a circular axial cross section with a variable diameter no larger than the first diameter and no smaller than the second diameter.
9. A golf club head as defined in claim 6 , wherein the hosel base portion, the hosel upper portion, and the hosel transition are concentric about a central longitudinal axis of the hosel portion.
10. A golf club head as defined in claim 6 , wherein the hosel transition gradually decreases in diameter in a direction from the hosel base portion to the hosel upper portion.