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 |