发明名称 Golf club head
摘要 A hollow golf club head comprises a face portion with a face for hitting a ball on its front and a crown portion forming a top surface of the head, wherein the head comprises a face member including the face portion and made of a metallic material and a crown member attached to the face member to form the crown portion at least partially, the crown member includes a first member made of a metal material and a second member made of a fiber reinforced resin for supporting the first member so that the first member does not directly contact with the face member, the head has a primary natural frequency of from 3800 to 6500 Hz and an antinode when the head vibrates in the primary natural mode appears in the first member.
申请公布号 US9468820(B2) 申请公布日期 2016.10.18
申请号 US201514596928 申请日期 2015.01.14
申请人 DUNLOP SPORTS CO. LTD. 发明人 Sugimoto Yasushi
分类号 A63B53/04 主分类号 A63B53/04
代理机构 Birch, Stewart, Kolasch & Birch, LLP 代理人 Birch, Stewart, Kolasch & Birch, LLP
主权项 1. A hollow golf club head comprising: a face portion having a front face for hitting a golf ball, a sole portion forming a bottom surface of the head, a crown portion forming a top surface of the head and a side portion between the crown portion and the sole portion; the head comprising a face member and a sole member; the face member comprising the face portion, the crown portion, the side portion and a sole opening, wherein the face member is made of a metallic material; the sole member being attached to the sole opening of the face member to form the sole portion at least partially, the sole member comprising a first member made of a metallic material and a second member made of a fiber reinforced resin for supporting the first member so that the first member does not directly contact with the face member; the head having a primary natural frequency in a range of from 3800 to 6500 Hz and an antinode when the head vibrates in the its primary natural mode appears in the first member.
地址 Kobe-Shi JP