US 11,052,293 B1
Golf club head with heel and toe stiffeners
Patrick C. Davis, Carlsbad, CA (US); and Michael J. Murphy, Carlsbad, CA (US)
Assigned to Callaway Golf Company, Carlsbad, CA (US)
Filed by Callaway Golf Company, Carlsbad, CA (US)
Filed on Nov. 18, 2020, as Appl. No. 16/951,105.
Claims priority of provisional application 63/077,601, filed on Sep. 12, 2020.
Int. Cl. A63B 53/04 (2015.01); A63B 53/08 (2015.01)
CPC A63B 53/045 (2020.08) [A63B 53/0412 (2020.08); A63B 53/0416 (2020.08); A63B 53/0433 (2020.08); A63B 53/0437 (2020.08); A63B 53/0466 (2013.01); A63B 53/08 (2013.01); A63B 2053/0491 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A golf club head comprising:
metal body comprising a sole portion, a front wall, a return portion, a hosel, a heel side with a heel side wall, a toe side with a toe side wall, a flange portion encircling an upper opening, an interior cavity, a volume of 75 cc to 460 cc, and a face opening in the front wall;
a composite crown insert affixed to the body to cover the upper opening;
a metal face insert comprising a striking face surface, a rear surface, and a geometric face center, the face insert affixed to the body to cover the face opening;
a heel side stiffener comprising a first planar front surface, a first planar rear surface, a first upper edge connected to the return section, a first lower edge connected to the sole portion, a first heel edge connected to the heel side wall, and a first toe edge;
a toe side stiffener comprising a second planar front surface, a second planar rear surface, a second upper edge connected to the return section, a second lower edge connected to the sole portion, a second toe edge connected to the toe side wall, and a second heel edge,
wherein each of the heel side stiffener and the toe side stiffener is disposed entirely within the interior cavity,
wherein each of the first and second planar front surfaces extends approximately parallel with a rear surface of the face insert,
wherein the first toe edge is spaced a distance of at least 1 inch measured along a horizontal y-axis from the second heel edge,
wherein each of the heel side stiffener and the toe side stiffener has a midsection and has a variable thickness that tapers from the midsection towards at least one of the respective edges of each of the heel side and toe side stiffeners,
wherein the heel side stiffener has an average thickness that is greater than an average thickness of the toe side stiffener,
wherein the first toe edge is spaced a first distance of at least 0.25 inch measured along a horizontal y-axis from the geometric face center,
wherein the second heel edge is spaced a second distance of at least 0.65 inch measured along a horizontal y-axis from the geometric face center,
wherein the second distance is greater than the first distance, and
wherein each of the heel side stiffener and the toe side stiffener is spaced a distance from the rear surface of the face insert of no more than 0.85 inch measured along a horizontal x-axis.