发明名称 Hollow golf club head
摘要 A hollow golf club head is provided that includes a face portion, a sole portion extending backward from a lower portion of the face portion to form a bottom portion of the golf club head, a crown portion extending backward from an upper portion of the face portion to form an upper portion of the golf club head, and a vibration absorbing layer in a film form composed of an elastic body on an inner surface of the crown portion. The sole portion and the crown portion are configured such that a ratio of a rigidity of the sole portion to a rigidity of the crown portion is 1: 0.1 to 0.8, and the vibration absorbing layer has a ring shape covering an outer peripheral portion of the crown portion. The launch angle of a ball is increased so that the traveling distance of a shot can be increased.
申请公布号 US7568984(B2) 申请公布日期 2009.08.04
申请号 US20060508211 申请日期 2006.08.23
申请人 BRIDGESTONE SPORTS CO., LTD 发明人 MATSUNAGA HIDEO
分类号 A63B53/04 主分类号 A63B53/04
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