发明名称 Golf club face assistance device
摘要 The present invention discloses a golf club face assistance device. A proper location on a shaft of a club is provided with a first fixing element and is extended with a first assistance element. The other end of the first assistance element is connected with a second fixing element, and the first assistance element is provided with a second assistance element which is extended toward the shaft. An interface between the first and second assistance elements is defined with an aim point, and a virtual club face is defined from the aim point to the club face. By the virtual club face, one can easily learn a correct hitting form and a correct hit point.
申请公布号 US7749093(B1) 申请公布日期 2010.07.06
申请号 US20090481187 申请日期 2009.06.09
申请人 CHANG CHIA-JEN;CHANG HAO-CHE 发明人 CHANG CHIA-JEN;CHANG HAO-CHE
分类号 A63B69/36 主分类号 A63B69/36
代理机构 代理人
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