Patent ID: 11931631
Assignee: TAYLOR MADE GOLF COMPANY, INC.
Field: Furniture, games (Other fields)
Classification: CPC A | IPC A

Claim 18:
19. A golf club head having a sole comprising a sole surface area, a crown, a striking face on a front portion, a hosel defining a hosel axis, a heel portion, a toe portion, and a rear portion opposite the striking face, the club head comprising:
a club head origin positioned at a geometric center of the striking face, the head origin at least partially defining a club head origin coordinate system, including three axes:
a z-axis extending through the head origin in a generally vertical direction relative to a ground plane when the club head is at a normal address position;
an x-axis extending through the head origin in a toe-to-heel direction generally parallel to the striking face and generally perpendicular to the z-axis; and
a y-axis extending through the head origin in a front-to-rear direction and generally perpendicular to the x-axis and to the z-axis;

a golf club head center of gravity (CG) positioned at a distance (Delta 1) rearward of the hosel axis, as measured along the y-axis, the CG forming a second origin, of a CG coordinate system including three axes:
a CG z-axis extending through the CG in a generally vertical direction relative to the ground plane when the club head is at the normal address position;
a CG x-axis extending through the CG in a toe-to-heel direction generally parallel to the striking face, and generally perpendicular to the CG z-axis; and
a CG y-axis extending through the CG in a front-to-rear direction and generally perpendicular to the CG x-axis and to the CG z-axis;

a moment of inertia, including:
a moment of inertia about the CG z-axis (“Izz”);
a moment of inertia about the CG z-axis (“Ixx”); and
a moment of inertia about the CG y-axis (“Iyy”);

a frame having a hollow interior which is made at least in part of a metal or metal alloy and has a crown opening;
a composite sole portion formed of a composite material, wherein the composite sole portion:
is positioned within at least a central area at a lower portion of the frame;
extends across the sole from the heel portion of the club head to the toe portion of the club head;
covers at least 50% of the sole surface area; and
comprises a plurality of transition regions;

a crown insert made of a composite material and joined to the frame to cover the crown opening;
a first weight secured to a lower portion of the frame proximate a rear portion of the frame; and
a plurality of ribs extending in different directions along, and formed on, the composite sole portion, wherein one or more of the plurality of ribs connects to the composite sole portion proximate to one or more of the plurality of transition regions and extends across the one or more of the plurality of transition regions.