US 12,102,889 B2
Multi-material golf club head
Peter Larsen, Carlsbad, CA (US); Peter L. Soracco, Carlsbad, CA (US); David S. Cornelius, Carlsbad, CA (US); and Ryuichi Sugimae, San Diego, CA (US)
Assigned to Acushnet Company, Fairhaven, MA (US)
Filed by Acushnet Company, Fairhaven, MA (US)
Filed on Dec. 17, 2021, as Appl. No. 17/554,934.
Application 17/554,934 is a division of application No. 16/528,210, filed on Jul. 31, 2019, granted, now 11,219,805.
Application 16/528,210 is a continuation in part of application No. 16/042,979, filed on Jul. 23, 2018, granted, now 10,653,927, issued on May 19, 2020.
Prior Publication US 2022/0212068 A1, Jul. 7, 2022
Int. Cl. A63B 53/04 (2015.01)
CPC A63B 53/0466 (2013.01) [A63B 53/0429 (2020.08); A63B 53/0437 (2020.08); A63B 53/0454 (2020.08); A63B 2209/00 (2013.01)] 20 Claims
OG exemplary drawing
 
11. A golf club head comprising:
a forward portion located at a front side of the golf club head and made from a first material, the forward portion comprising:
a striking face; and
a forward joint section spaced rearwardly from the striking face and having an exterior surface and an interior surface;
an aft portion located rearward of the forward portion and joined to the forward portion, the aft portion made from a second material and the aft portion comprising:
an aft joint section spaced rearwardly from the striking face and joined with the forward joint section, the aft joint section having an interior surface and an exterior surface, wherein the exterior surface of the aft joint section is in contact with the interior surface of the forward joint section;
an aft rib attached to an interior surface of the aft portion, the aft rib extending, from an interior surface of the aft joint section, in a direction away from the striking face, wherein the aft rib is a continuous aft rib extending from a first location on a first half of the interior surface of the aft joint section corresponding to a crown section of the golf club head to a second location on a second half of the interior surface of the aft joint section corresponding to a sole of the golf club head; and
the crown section having an areal density of less than 2000 g/m2,
wherein no portion of the aft rib extends into the forward portion beyond the aft joint section in a direction towards the striking face, and
wherein a portion of the interior surface of the forward joint section in contact with a portion of the exterior surface of the aft joint section adjacent to the crown section faces the sole.