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    • 33. 发明授权
    • Golf club head groove configuration
    • 高尔夫球杆头槽配置
    • US07862450B2
    • 2011-01-04
    • US12007223
    • 2008-01-08
    • Peter J. GilbertKarl A. Clausen
    • Peter J. GilbertKarl A. Clausen
    • A63B53/04
    • A63B53/04A63B53/047A63B60/00A63B2053/0445
    • The present invention is directed to a golf club head with an improved striking surface. The grooves are machined into the strike surface with tight tolerances. The grooves have sharp edges, radiused ends, and a draft angle between about 2° and 12°. The striking face is machined such that it has a uniform texture with a roughness of more than 40 Ra. The grooves may contain a plurality of portions, including a radiused or angled portion, a portion having substantially parallel walls, a portion having a v-shape, and a curved portion. The grooves may also be characterized by various dimensions, including draft angle, inclusive side wall angle, width, depth, cross-sectional area, spacing, and pitch ratio. Preferred values for these dimension are provided.
    • 本发明涉及具有改进的撞击表面的高尔夫球杆头。 凹槽以严格的公差加工成冲击表面。 凹槽具有锐利的边缘,圆角端部和大约2°至12°之间的拔模角度。 打孔面加工成具有粗糙度大于40Ra的均匀质地。 凹槽可以包括多个部分,包括圆角或成角度的部分,具有基本平行的壁的部分,具有v形的部分和弯曲部分。 凹槽的特征还可以是各种尺寸,包括拔模角,包括侧壁角,宽度,深度,横截面积,间距和俯仰比。 提供这些尺寸的首选值。