发明授权
- 专利标题: Golf club
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申请号: US15849170申请日: 2017-12-20
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公开(公告)号: US10307647B2公开(公告)日: 2019-06-04
- 发明人: Takashi Nakamura
- 申请人: SUMITOMO RUBBER INDUSTRIES, LTD.
- 申请人地址: JP Kobe-Shi, Hyogo
- 专利权人: SUMITOMO RUBBER INDUSTRIES, LTD.
- 当前专利权人: SUMITOMO RUBBER INDUSTRIES, LTD.
- 当前专利权人地址: JP Kobe-Shi, Hyogo
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: JP2013-152337 20130723; JP2014-030570 20140220
- 主分类号: A63B53/10
- IPC分类号: A63B53/10 ; A63B53/04 ; A63B60/00 ; A63B60/42 ; A63B53/00 ; A63B53/14
摘要:
A club includes a head, a shaft, and a grip. A club length L1 is 43 inches or greater and 48 inches or less. A ratio (Wh/Wc) between a head weight Wh and a club weight Wc is equal to or greater than 0.70. An inertia moment Ix about swing axis is 6.90×103 (kg·cm2) or greater and 7.50×103 (kg·cm2) or less. A static moment Mt (kg·cm) of the club is equal to or greater than 16.3 (kg·cm). The frequency of vibration of club is 240 (cpm) or greater and 280 (cpm) or less. The inertia moment Ix (kg·cm2) is calculated by Equation (1): Ix=Wc×(Lc+60)2+Ic (1).
公开/授权文献
- US20180111026A1 GOLF CLUB 公开/授权日:2018-04-26
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