发明名称 WOOD-TYPE GOLF CLUB HEAD
摘要 A wood golf club head, which is provided therein with a hollow section and for which a crown section that forms the upper surface of the head is formed from a metal material. The crown section includes a heel portion; a toe portion with a smaller thickness than the heel portion; and a thickness transition section provided between the heel portion and the toe portion, the thickness of which decreases gradually from the heel portion to the toe portion. In the top view of a reference state in which the head is placed on a horizontal plane with a specified lie angle and loft angle, the thickness transition section extends as a smooth curve that protrudes towards the toe side.
申请公布号 US2015238827(A1) 申请公布日期 2015.08.27
申请号 US201314426966 申请日期 2013.10.10
申请人 DUNLOP SPORTS CO. LTD. 发明人 Nakamura Hirotaka
分类号 A63B53/04 主分类号 A63B53/04
代理机构 代理人
主权项 1. A wood-type golf club head having a hollow therein, the club head comprising: a crown portion forming a top surface of the head being made of metallic material; the crown portion comprising a heel-side portion, a toe-side portion having a thickness smaller than that of the heel-side portion and a thickness transition portion provided between the toe-side portion and the heel-side portion and having a thickness gradually decreasing from the heel-side portion to the toe-side portion; and the thickness transition portion extending in a curved manner that smoothly protrudes toward a toe of the club head in a plan view of the club head under a standard condition in which the club head is placed on a horizontal plane with its lie angle and its loft angle.
地址 Kobe-shi, Hyogo KR