US 12,029,948 B2
Golf club head
Yumi Kanemitsu, Kobe (JP); Naruhiro Mizutani, Kobe (JP); Hirotaka Nakamura, Kobe (JP); and Yuki Motokawa, Kobe (JP)
Assigned to Sumitomo Rubber Industries, Ltd., Hyogo (JP)
Filed by Sumitomo Rubber Industries, Ltd., Hyogo (JP)
Filed on Jul. 28, 2022, as Appl. No. 17/815,921.
Claims priority of application No. JP2021-133638 (JP), filed on Aug. 18, 2021.
Prior Publication US 2023/0056990 A1, Feb. 23, 2023
Int. Cl. A63B 53/04 (2015.01)
CPC A63B 53/0466 (2013.01) [A63B 53/0408 (2020.08); A63B 2209/02 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A golf club head comprising:
a metallic head body having an opening; and
an FRP member fixed to the head body so as to close the opening, the FRP member being a fiber-reinforced plastic including fibers and thermoplastic resin,
wherein
the head body comprises a support portion around the opening, the support portion having a first surface for supporting the FRP member,
the first surface is provided with at least one narrow groove having a groove width of 20 to 80 mm and a groove depth of 100 to 400 mm,
no adhesive intervenes between the FRP member and the first surface, and
a part of the thermoplastic resin of the FRP member is solidified inside the at least one narrow groove.