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    • 5. 发明申请
    • PUTTER HEAD
    • PUTTER头
    • US20100035703A1
    • 2010-02-11
    • US12392496
    • 2009-02-25
    • Tatsuya ISHIKAWAWataru BanFumiaki Sato
    • Tatsuya ISHIKAWAWataru BanFumiaki Sato
    • A63B53/04
    • A63B53/0487A63B2053/0408A63B2053/0416A63B2053/0445A63B2053/0462A63B2209/00
    • A putter head prevents a ball from sliding over a green while maintaining golfers' preferred hitting feel and roll of the ball. A face insert fitted in a face of the putter head has an outer layer which serves as a ball-hitting surface and an inner layer which is located on an inner side of a head body. A smash factor of a second polymer material forming the inner layer is greater than a smash factor of a first polymer material forming the outer layer. Two types of groove, grooves of a first groove group and grooves of a second groove group are formed in an external surface of the outer layer. The grooves of the first groove group may be 0.25 to 1.6 mm wide and 0.05 to 0.5 mm deep and the grooves of the second groove group may be 0.075 to 0.5 mm wide and 0.025 to 0.1 mm deep.
    • 推杆头防止球滑过绿色,同时保持高尔夫球手的首选击球感觉和滚动。 安装在推杆头的表面上的面插入件具有用作击球面的外层和位于头本体内侧的内层。 形成内层的第二聚合物材料的粉碎因子大于形成外层的第一聚合物材料的粉碎因子。 在外层的外表面形成有两种类型的凹槽,第一凹槽组的凹槽和第二凹槽组的凹槽。 第一凹槽组的槽可以是0.25至1.6mm宽和0.05至0.5mm深,并且第二凹槽组的凹槽可以是0.075-0.5mm宽和0.025-0.1mm深。
    • 7. 发明授权
    • Putter head
    • 推杆头
    • US08491415B2
    • 2013-07-23
    • US12392496
    • 2009-02-25
    • Tatsuya IshikawaWataru BanFumiaki Sato
    • Tatsuya IshikawaWataru BanFumiaki Sato
    • A63B53/04
    • A63B53/0487A63B2053/0408A63B2053/0416A63B2053/0445A63B2053/0462A63B2209/00
    • A putter head prevents a ball from sliding over a green while maintaining golfers' preferred hitting feel and roll of the ball. A face insert fitted in a face of the putter head has an outer layer which serves as a ball-hitting surface and an inner layer which is located on an inner side of a head body. A smash factor of a second polymer material forming the inner layer is greater than a smash factor of a first polymer material forming the outer layer. Two types of groove, grooves of a first groove group and grooves of a second groove group are formed in an external surface of the outer layer. The grooves of the first groove group may be 0.25 to 1.6 mm wide and 0.05 to 0.5 mm deep and the grooves of the second groove group may be 0.075 to 0.5 mm wide and 0.025 to 0.1 mm deep.
    • 推杆头防止球滑过绿色,同时保持高尔夫球手的首选击球感觉和滚动。 安装在推杆头的表面上的面插入件具有用作击球面的外层和位于头本体内侧的内层。 形成内层的第二聚合物材料的粉碎因子大于形成外层的第一聚合物材料的粉碎因子。 在外层的外表面形成有两种类型的凹槽,第一凹槽组的凹槽和第二凹槽组的凹槽。 第一凹槽组的槽可以是0.25至1.6mm宽和0.05至0.5mm深,并且第二凹槽组的凹槽可以是0.075-0.5mm宽和0.025-0.1mm深。