Golf club head
AssigneeAcushnet Company
InventorsChristopher D. Harvell, Thomas Orrin Bennett, Mitchell E. Bac
Life of this patent
Estimating the term…
Abstract
A golf club head formed of an alloy of steel that is capable of improving the center of gravity (CG) location while maintaining traditional external dimensions of the golf club head. More specifically, the golf club head in accordance with the present invention achieves a relatively low CG while maintaining traditional external dimensions by reducing the amount of mass contributed by the crown, the striking face, and the hosel, and strategically reallocating this mass within and/or proximate the sole of the golf club head.
Claims20
A golf club head comprising:
- a striking face, having a face center, a crown, a sole opposite said crown, a heel, a toe opposite said heel, and a hosel adjacent said heel and configured to join said golf club head to a shaft,
- wherein an X-axis is defined as a horizontal axis tangent to said face center of said striking face with a positive direction towards said heel of said golf club head, a Y-axis is a vertical axis orthogonal to said X-axis with a positive direction towards said crown of said golf club head, and a Z-axis being orthogonal to both said X-axis and said Y-axis with a positive direction towards a front of said golf club head, wherein an origin of said X-axis, said Y-axis, and said Z-axis is centered at a center of gravity (CG) of said golf club head,
- wherein said sole of said golf club head further comprises an oversized weight receptacle, adapted to engage a multi-piece weight system,
- wherein said multi-piece weight system further comprises;
- an oversized base weight further comprising a secondary weight receptacle,
- a removable weight, and
- a threaded fastener,
- wherein said oversized base weight is adapted to engage said oversized weight receptacle,
- wherein said removable weight is adapted to engage said secondary weight receptacle, and
- wherein said threaded fastener is adapted to retain said removable weight via an engagement to said sole of said golf club head.
A golf club head comprising:
- a striking face, having a face center, a crown, a sole opposite said crown, a heel, a toe opposite said heel, and a hosel adjacent said heel and configured to join said golf club head to a shaft,
- wherein an X-axis is defined as a horizontal axis tangent to said face center of said striking face with a positive direction towards said heel of said golf club head, a Y-axis is a vertical axis orthogonal to said X-axis with a positive direction towards said crown of said golf club head, and a Z-axis being orthogonal to both said X-axis and said Y-axis with a positive direction towards a front of said golf club head, wherein an origin of said X-axis, said Y-axis, and said Z-axis is centered at a center of gravity (CG) of said golf club head,
- wherein said sole of said golf club head further comprises an oversized weight receptacle, adapted to engage a multi-piece weight system,
- wherein said multi-piece weight system further comprises;
- an oversized base weight further comprising a secondary weight receptacle,
- a removable weight, and
- a threaded fastener,
- wherein said oversized base weight is adapted to engage said oversized weight receptacle,
- wherein said removable weight is adapted to engage said secondary weight receptacle, and
- wherein said threaded fastener is adapted to retain said removable weight via an engagement to said sole of said golf club head;
- wherein a mass of said golf club head below an X-Z plane set at a vertical height from a ground plane equal to 25% of a peak crown height measurement is greater than about 45% of a total mass of said golf club head, and
- wherein said golf club head has a CG-Yg of less than about 16.0 mm.
A golf club head comprising:
- a striking face, having a face center, a crown, a sole opposite said crown, a heel, a toe opposite said heel, and a hosel adjacent said heel and configured to join said golf club head to a shaft,
- wherein an X-axis is defined as a horizontal axis tangent to said face center of said striking face with a positive direction towards said heel of said golf club head, a Y-axis is a vertical axis orthogonal to said X-axis with a positive direction towards said crown of said golf club head, and a Z-axis being orthogonal to both said X-axis and said Y-axis with a positive direction towards a front of said golf club head, wherein an origin of said X-axis, said Y-axis, and said Z-axis is centered at a center of gravity (CG) of said golf club head,
- wherein said sole of said golf club head further comprises an oversized weight receptacle, adapted to engage a multi-piece weight system,
- wherein said multi-piece weight system further comprises;
- a removable weight,
- a non-removable weight, and
- threaded fastener,
- wherein said non-removable weight is attached to said oversized weight receptacle via an adhesive,
- wherein said removable weight is attached to said non-removable weight when said threaded fastener engages said sole of said golf club head, and
- wherein said non-removable weight is juxtaposed between said oversized weight receptacle and said removable weight wherein no point of said removable weight contacts said oversized weight receptacle of said sole of said golf club head.
Dependencies are inferred from the claim text.