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公开(公告)号：US20040204263A1
公开(公告)日：2004-10-14
申请号：US10836244
申请日：2004-05-03
IPC分类号： A63B053/00
CPC分类号： A63B53/04 , A63B53/047 , A63B60/00 , A63B60/52 , A63B2053/005 , A63B2053/0437 , A63B2053/0491
摘要： A set of golf clubs of the nullironnull type, each club having a head, said head having a rear face, said rear face having a cavity delimited by walls, namely at least one lower wall forming the sole and an upper wall, said upper wall having several faces, namely a rear face, an upper face, a lower face facing the cavity and lateral faces, in which several clubs of said set have a head which has at least one recess made in the upper wall and opening onto a single face of said upper wall, away from the upper and lower faces, and wherein, the volume and/or the position inside the upper wall of said at least one recess varies from one club to another within said set, so that the position of the center of gravity of each head varies from one club to another.
摘要翻译： 一组“铁”型高尔夫球杆，每个球杆都有一个头部，所述头部具有后表面，所述后表面具有由壁限定的空腔，即形成鞋底的至少一个下壁和上壁，所述下壁 上壁具有几个面，即后表面，上表面，面向腔体的下表面和侧面，其中所述套件的多个杆头具有头部，头部具有形成在上壁中的开口至少一个凹部 所述上壁的单面，远离上表面和下表面，并且其中，所述至少一个凹部的上壁内的体积和/或位置在所述组内从一个球杆到另一个球杆变化，使得 每个头脑的重心各不相同。
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公开(公告)号：US20040127300A1
公开(公告)日：2004-07-01
申请号：US10734907
申请日：2003-12-12
IPC分类号： A63B057/00
CPC分类号： A63B53/04 , A63B53/047 , A63B60/00 , A63B2053/0408 , A63B2053/0479 , A63B2209/00
摘要： Golf clubhead (1) made from metal, having a strike face (2) which has a loft angle null of greater than 45nullnull, said strike (2) face having has a plurality of parallel grooves (10), characterized in that the strike face (2) has a surface roughness Ra of less than 0.25 micrometre, and in that the Vickers hardness of the strike face (2) is greater than 5 GigaPascal.
摘要翻译： 具有由金属制成的高尔夫球杆头（1），具有大于45°的顶角α的冲击面（2），所述冲击面（2）具有多个平行凹槽（10），其特征在于， 冲击面（2）具有小于0.25微米的表面粗糙度Ra，并且击打面（2）的维氏硬度大于5吉马斯卡。
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