US 11,745,060 B2
Golf club head with undercut and insert
Evan Greer, Phoenix, AZ (US); Eric J. Morales, Laveen, AZ (US); Murphy R. Alexander, Scottsdale, AZ (US); Ryan M. Stokke, Anthem, AZ (US); Clayson C. Spackman, Scottsdale, AZ (US); and Xiaojian Chen, Phoenix, AZ (US)
Assigned to Karsten Manufacturing Corporation, Phoenix, AZ (US)
Filed by KARSTEN MANUFACTURING CORPORATION, Phoenix, AZ (US)
Filed on Nov. 1, 2021, as Appl. No. 17/453,162.
Claims priority of provisional application 63/227,938, filed on Jul. 30, 2021.
Claims priority of provisional application 63/108,226, filed on Oct. 30, 2020.
Prior Publication US 2022/0134195 A1, May 5, 2022
Int. Cl. A63B 53/04 (2015.01)
CPC A63B 53/0425 (2020.08) [A63B 53/047 (2013.01); A63B 53/0445 (2020.08); A63B 53/0408 (2020.08)] 20 Claims
OG exemplary drawing
 
1. An iron-type golf club head comprising:
an iron-type golf club head body and an insert;
the iron-type golf club head body comprising:
a front portion and a back portion, a top portion comprising a top rail, and a bottom portion comprising a sole;
a strikeface comprising a strikeface front surface located at the front portion and a strikeface rear surface located opposite the strikeface front surface towards the back portion;
the strikeface further comprises a strikeface geometric center, a strikeface perimeter; and a thickness measured from the strikeface front surface to the strikeface rear surface;
wherein a rear perimeter extension extends rearwardly from the strikeface perimeter;
wherein the strikeface rear surface and the rear perimeter extension cooperate to define a back cavity;
an insert comprising:
an adhesive layer, an elastomeric layer, and a cap;
wherein the insert is configured to be received within the back cavity and adhesively attached to the strikeface rear surface;
wherein the adhesive layer consists of a single, unbroken piece;
wherein the elastomeric layer comprises a first plurality of portions, and the cap comprises a second plurality of portions;
wherein the elastomeric layer first plurality of portions are aligned with the cap second plurality of portions;
wherein one elastomeric layer portion and one cap portion form an insert section such that each of the plurality of elastomeric layer portions is paired with a different cap portion, and such that each of the plurality of cap portions is paired with an individual elastomeric core portion such that the insert comprises a third plurality of insert sections;
wherein the third plurality of insert sections are separated one from another by gaps such that none of the third plurality of sections are directly connected one to another;
wherein the gaps are defined by uncovered areas of the adhesive layer.