Adjustable sole weight of a golf club head
AssigneeKarsten Manufacturing Corporation
InventorsXiaojian Chen, Eric J. Morales, Martin R. Jertson
Life of this patent
Estimating the term…
Abstract
A golf club head includes a body having a heel portion, a toe portion, a sole portion, and an outer surface, a strikeface having a geometric center, a head center of gravity, and a weight member including a weight pad. The weight member is configured to be repositionable by the user to a first position or a second position. The club head having the weight member in the first position shifts the head center of gravity toward the strikeface, and the club head having the weight member in the second position shifts the head center of gravity away from the strikeface.
Claims20
A golf club head comprising:
- a body having a heel portion, a toe portion, a sole portion, and an inner surface,
- a strikeface having a geometric center;
- a head center of gravity;
- a z-axis extending through the head center of gravity from the strikeface to the rear portion parallel to a ground plane, when the club head is at an address position;
- a weight port;
- a fastener;
- a weight member comprising:
- a first end and a second end,
- a collar adjacent the first end, and
- a threaded recess configured to receive the fastener;
- a weight pad embedded within the weight member adjacent the second end of the weight member;
- wherein:
- the weight member is configured to be positioned inside the body such that the weight member comprises at least one surface that is flush with the inner surface of the body;
- the weight member collar sits within a weight port of the body;
- the fastener is configured to fit partially within the weight port and engage the threaded recess of the weight member;
- a weight member axis extends through a center of the threaded recess and a center of the weight pad;
- and
- the fastener acts as a pivot point so that when the fastener is loosened, the weight member can be rotated about the fastener pivot point by the user, positioning the weight member axis at 0 to 359 degrees from the z-axis.
The golf club head of claim 5, wherein the difference between the first vertical spin rate and the second vertical spin rate ranges from approximately 200 rpm to 600 rpm.
A golf club head comprising:
- a body having a heel portion, a toe portion, a sole portion, and an inner surface,
- a strikeface having a geometric center;
- a head center of gravity;
- a z-axis extending through the head center of gravity from the strikeface to the rear portion parallel to a ground plane, when the club head is at an address position;
- a weight port;
- a fastener;
- a weight member comprising:
- a first end and a second end,
- a collar adjacent the first end, and
- a threaded recess configured to receive the fastener;
- a weight pad embedded within the weight member adjacent the second end of the weight member;
- wherein:
- the weight member is configured to be positioned inside the body such that the weight member comprises at least one surface that is flush with the inner surface of the body;
- the weight pad comprises a surface that is flush with the inner surface of the body;
- the weight member collar sits within a weight port of the body;
- the fastener is configured to fit partially within the weight port and engage the threaded recess of the weight member;
- a weight member axis extends through a center of the threaded recess and a center of the weight pad;
- and
- the fastener acts as a pivot point so that when the fastener is loosened, the weight member can be rotated about the fastener pivot point by the user, positioning the weight member axis at 0 to 90 degrees to either side of the z-axis.
Dependencies are inferred from the claim text.