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    • 10. 发明授权
    • Method for manufacturing golf club head
    • 制造高尔夫球杆头的方法
    • US07775907B2
    • 2010-08-17
    • US11710522
    • 2007-02-26
    • Tomoya Hirano
    • Tomoya Hirano
    • A63B53/00
    • A63B53/0466A63B2053/0416A63B2053/0433A63B2053/0437A63B2209/00
    • A method for manufacturing a hollow golf club head is disclosed, wherein a metallic main frame provided with a top opening and a bottom opening, a metallic crown plate and a metallic sole plate are prepared. The sole plate is placed in the bottom opening. A die is inserted into the inside of the main frame through the top opening. A protrusion of the sole plate is crushed onto the edge portion of the main frame around the bottom opening, by the use of the inserted die. Then the top opening is closed by the crown plate. The specific gravity SGm and proof stress YSm of the main frame, the specific gravity SGs and proof stress YSs of the sole plate, and the specific gravity SGf of the face plate satisfy: SGf=
    • 公开了一种制造中空高尔夫球棒头的方法,其中准备设置有顶部开口和底部开口的金属主框架,金属顶板和金属底板。 底板放置在底部开口中。 模具通过顶部开口插入主框架的内部。 通过使用插入的模具将底板的突出部破碎在主框架的围绕底部开口的边缘部分上。 然后,顶部开口由冠板封闭。 主框架的比重SGm和承重应力YSm,底板的比重SGs和有效应力YSs以及面板的比重SGf满足:SGf =