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    • 60. 发明授权
    • Golf club head and face
    • 高尔夫球杆头和脸
    • US06719644B2
    • 2004-04-13
    • US10167764
    • 2002-06-11
    • Todd P. Beach
    • Todd P. Beach
    • A63B5304
    • A63B53/04A63B53/0466A63B60/00A63B2053/0408A63B2053/0441B44C5/00
    • An improved face for a golf club head includes shallow and deep markings configured to provide a pleasing appearance when viewed head on, and to frame the central region of the impact surface of the face when viewed at address. Use of only shallow markings in the central region of the impact surface prevents existence of stress fractures resulting from use of deep markings in the central region. This allows for a face thinner than those incorporating conventional grooves in the central regions of their impact surfaces, resulting in both superior resistance to cracking and improved C.O.R. Specified methods of manufacture are particularly suited for making clubs incorporating these shallow and deep markings.
    • 用于高尔夫球杆头的改进的面包括浅和深的标记,其构造成当从头部观察时提供令人满意的外观,并且当在地址处观察时框架在脸部的冲击表面的中心区域。 在冲击表面的中央区域仅使用浅标记可以防止在中心区域使用深刻痕迹导致应力断裂的存在。 这允许比在其冲击表面的中心区域中包含常规凹槽的表面更薄的表面,导致优异的抗开裂性和改善的C.O.R. 指定的制造方法特别适用于制造结合了这些浅层和深层标记的球杆。