Patent ID: 11865418
Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
Field: Furniture, games (Other fields)
Classification: CPC A | IPC A

Claim 13:
14. A putter-type golf club head that, when oriented in a reference position, comprises:
a main body including:
a heel;
a toe opposite the heel;
a face defining a virtual face plane, the face including a heel side recess and a toe side recess;
a main body length L measured in a front to rear direction from a forward-most extent of the main body to a rearward-most extent of the main body, L being no less than 75.0 mm;
a heel projection projecting rearwardly from the face;
a toe projection projecting rearwardly from the face;
a central section between the heel projection and the toe projection, the central section projecting less rearwardly from the face than each of the heel projection and the toe projection by at least 30.0 mm; and
a sole surface including a plurality of empty sole recesses located entirely rearwardly of a golf club head center of gravity CG, the plurality of empty sole recesses being located in the heel projection and the toe projection, with each of the heel projection and the toe projection containing a sole recess of the plurality of empty sole recesses, each of the plurality of empty sole recesses being in the form of a blind hole and comprising a plurality of sub-recesses arranged in the front to rear direction, at least a portion of each of the plurality of sub-recesses of the plurality of empty sole recesses being located rearward of the central section, and in each of the plurality of empty sole recesses, each sub-recess has a same depth on a side of the sole recess facing toward the central section as the other sub-recesses in that empty sole recess and a different depth on a side of the sole recess facing away from the central section than the other sub-recesses in that empty sole recess;

a heel insert having a forward surface that is substantially coplanar with the virtual face plane;
a toe insert having a forward surface that is substantially coplanar with the virtual face plane; and
a CG depth CGD measured along a depth axis that extends through the CG normal to the virtual face plane, the CGD being no greater than 25.0 mm, and CGD/L being no less than 0.15 and no greater than 0.30.