CPC A63B 53/0466 (2013.01) [A63B 53/0408 (2020.08); A63B 53/0412 (2020.08); A63B 53/0433 (2020.08); A63B 53/0437 (2020.08); A63B 53/0445 (2020.08); A63B 60/006 (2020.08); A63B 60/02 (2015.10); A63B 2053/0491 (2013.01)] | 20 Claims |
1. A hollow body golf club head comprising:
a body having a front end, a back end opposite the front end, a crown, a sole opposite the crown, a heel, a toe opposite the heel, a skirt adjoining the crown and the sole, and a hosel structure having a hosel axis extending centrally through a bore in the hosel structure;
a strikeface positioned at the front end and defining a geometric center, a loft plane tangent to the geometric center, and a head depth plane extending through the geometric center from the heel to the toe, perpendicular to the loft plane;
wherein:
a volume of the golf club head is greater than 400 cc;
a loft angle of the club head is less than 16 degrees;
a head center of gravity of the club head is located at a head CG depth from the loft plane, measured in a direction perpendicular to the loft plane, and at a head CG height from a head depth plane, measured in a direction perpendicular to the head depth plane;
the head CG depth is greater than 1.35 inches;
the club head experiences a drag force FD less than 1.4 lbf when subjected to an air speed of 102 mph in a direction perpendicular to a plane extending through the geometric center of the strikeface, parallel to the hosel axis, and positioned at the loft angle from the loft plane;
the club head has a crown-to-sole moment of inertia Ixx, a heel to toe moment of inertia Iyy, and a combined moment of inertia measured as the sum of the crown-to-sole moment of inertia and the heel to toe moment of inertia Ixx+Iyy;
the club head has a front radius of curvature between 0.2 inches and 0.3 inches wherein the front radius of curvature extends from a top edge of the strikeface to a crown transition point, the crown transition point indicating a change in curvature from the front radius of curvature to a different curvature of the crown;
the club head has a crown angle less than 79 degrees, wherein the crown angle is measured as the acute angle between a front plane and a crown axis that extends through the crown transition point of the club head;
the club head has a maximum crown height between 0.4 and 0.5 inches wherein the maximum crown height is measured as the greatest distance between a surface of the crown and the crown axis;
the club head further comprising an embedded weight comprising a weight center positioned at one or more of the following locations:
(a) within 0.4 inches of a perimeter of the club head;
(b) greater than 2.3 inches from the head center of gravity; or
(c) greater than 4.1 inches from the geometric center of the strikeface; and
the club head satisfies relation A and B:
|