Multi-material golf club head
AssigneeAcushnet Company
InventorsRyuichi Sugimae, Darryl C. Galvan, Richard L. Cleghorn, Christopher D. Harvell
Life of this patent
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Abstract
A multi-material golf club head having an improved performance is disclosed. More specifically, the present invention relates to a multi-material golf club head having a metallic frontal portion and a lightweight aft portion with an addition of an internal ribbon support member. The present invention may also further be comprised of a weighting mechanism that is accessible via an opening in the lightweight after portion but connects directly to the metallic frontal portion to mitigate any of the structural integrity issues associated with installing weights in a lightweight portion of a golf club head.
Claims17
A golf club head comprising:
- a frontal striking face portion located at a frontal portion of said golf club head;
- and
- an aft body portion, attached to the rear of said striking face portion;
- wherein said aft body portion further comprises;
- a lightweight shell, wherein the lightweight shell comprises:
- a lightweight crown sub-shell;
- a lightweight sole sub-shell;
- and
- a skirt, wherein the skirt is a junction between said lightweight crown sub-shell and said lightweight sole sub-shell;
- and
- an internal ribbon support member, attaching to an internal surface of said lightweight shell around said skirt, wherein said internal ribbon support member is not visible from outside of the golf club head;
- wherein said internal ribbon support member further comprises a secondary wall, separating an internal overall volume of said golf club head into a frontal volumetric chamber and a rear volumetric chamber, and wherein said secondary wall is a y-shaped structure, wherein the y-shaped structure comprises:
- a first arm connecting to said lightweight crown sub-shell;
- and
- a second arm connecting to said lightweight sole sub-shell;
- wherein said internal ribbon support member does not contact an internal rearmost portion of said skirt, and
- wherein said golf club head has a Volumetric Ratio of between about 12.6 to about 19.1,
- said Volumetric Ratio defined as
- Volumetric
-
- Ratio
- =
- Frontal
-
- Volumetric
-
- Chamber
-
- Volume
- Rear
-
- Volumetric
-
- Chamber
-
- Volume
- .
Dependencies are inferred from the claim text.