Forged golf club head
AssigneeKarsten Manufacturing Corporation
InventorsYujen Huang, Erik M. Henrikson, Matthew W. Simone, Matthew T. Schier
Life of this patent
Estimating the term…
Abstract
An iron-type golf club head with a cavity formed via a multi-stage forging process. The forged iron-type golf club head is formed from a single billet of material. An intermediate step of the multi-stage forging process creates a cavity in the iron-type golf club head which can receive an insert. The resultant iron-type golf club head has a substantially lower center of gravity and higher moment of inertia when compared to a traditionally forged iron-type golf club head lacking a cavity. Additionally, the resultant iron-type golf club head has a more solid feel than a traditionally cast iron-type golf club head as a result of the tighter grain structure the forging process yields.
Claims20
A forged golf club head comprising:
- a top rail, a sole opposite the top rail, a hosel, a toe region, a heel region opposite the toe region, a rear, a strike face, a lower rear region, and an upper rear region;
- wherein:
- the upper rear region is located above the lower rear region such that the upper rear region comprises the top rail and the lower rear region comprises the sole;
- the forged golf club head further comprises a forged cavity formed in the lower rear region;
- the forged cavity comprises a front wall proximate the strike face, a rear wall space rearwardly of the front wall, a bottom wall, a toe wall, and a heel wall;
- the front wall, rear wall, bottom wall, toe wall, and heel wall define a cavity volume between 3.5 cc and 6.5 cc;
- the strike face comprises a top region, a cavity region, and a middle region located between the top region and cavity region;
- the top region comprises a first thickness measured perpendicular to the strike face, and a first height measured parallel to the strike face from the top rail to the sole;
- the middle region comprises a second thickness measured perpendicular to the strike face, and a second height measured parallel to the strike face from the top rail to the sole;
- the cavity region comprises a minimum thickness and a maximum thickness measured perpendicular to the strike face, and a third height measured parallel to the strike face from the top rail to the sole;
- the first thickness is greater than the second thickness and less than the minimum thickness;
- the second height ranges from approximately 4 mm to 7 mm;
- the forged golf club head is forged from a single solid billet.
A forged golf club head comprising:
- a top rail, a sole opposite the top rail, a hosel, a toe region, a heel region opposite the toe region, a rear, a strike face, a lower rear region, and an upper rear region;
- wherein:
- the upper rear region is located above the lower rear region such that the upper rear region comprises the top rail and the lower rear region comprises the sole;
- the forged golf club head further comprises a forged cavity formed in the lower rear region;
- the forged cavity comprises a front wall proximate the strike face, a rear wall space rearwardly of the front wall, a bottom wall, a toe wall, and a heel wall;
- the front wall, rear wall, bottom wall, toe wall, and heel wall define a cavity volume between 3.5 cc and 6.5 cc;
- the strike face comprises a top region, a cavity region, and a middle region located between the top region and cavity region;
- the top region comprises a first thickness measured perpendicular to the strike face, and a first height measured parallel to the strike face from the top rail to the sole;
- the middle region comprises a second thickness measured perpendicular to the strike face, and a second height measured parallel to the strike face from the top rail to the sole;
- the cavity region comprises a third thickness measured perpendicular to the strike face, and a third height measured parallel to the strike face from the top rail to the sole;
- the first thickness is greater than the second thickness and less than the third thickness;
- the second height ranges from approximately 0.05 inch to 0.125 inch;
- the forged golf club head is forged from a single solid billet.
Dependencies are inferred from the claim text.