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    • 60. 发明授权
    • Variable density golf club
    • 可变密度高尔夫球杆
    • US07815523B2
    • 2010-10-19
    • US10915458
    • 2004-08-11
    • Scott A. KnutsonPeter J. GilbertThomas O. Bennett
    • Scott A. KnutsonPeter J. GilbertThomas O. Bennett
    • A63B53/04
    • A63B53/047A63B60/02A63B2053/0491
    • A golf club head having portions of varying density is disclosed and claimed. The club head includes a body with a recess in the back between the heel and toe and extending toward the sole. An insert that is configured to matingly correspond to the recess is positioned within the recess. The insert has a lower specific gravity than the club head body, biasing the club head mass toward the club head perimeter. The insert can form a muscle of the club head. The club head is forged, and the recess is formed by machining. After the insert is positioned within the recess, the club head-insert combination is subjected to additional forging and finishing steps. The present invention increases the club head moment of inertia and/or enlarges the club head sweet spot while retaining the golfer's ability to work the golf ball and shape the golf shot. The present invention can be used with forged, blade, and muscle back clubs, which have not heretofore been enhanced in these manners.
    • 披露并要求具有不同密度部分的高尔夫球杆头。 球杆头包括在后跟和脚趾之间的后部具有凹部并且朝向鞋底延伸的主体。 配置成对应于凹部的插入件位于凹槽内。 插入物具有比球杆头本体更低的比重,从而将球杆头质量偏向球杆头周长。 插入物可以形成球杆头的肌肉。 球杆头被锻造,凹槽通过机械加工形成。 在将插入件定位在凹槽内之后,对球杆头插入组合进行额外的锻造和精加工步骤。 本发明增加了球杆头的惯性矩和/或扩大了球杆头的甜点,同时保持了高尔夫球手对高尔夫球的工作能力和高尔夫球的形状。 本发明可以用于以前没有以这些方式增强的锻造,刀片和肌肉背部球杆。