发明名称 Method and apparatus for sport swing training
摘要 A novel swing training method and apparatus means for perfecting the awareness, dependent swing motion and muscle groups contributing to the performance of players who engage in dependent sport games and activities are disclosed. A blade having sufficient width and rigidity to generate air resistance during a represnetative swing motion is designed to float on the shaft of the appendant training apparatus so as to remain perpendicular to the swing plane throughout said user swing or stroke motion.
申请公布号 US5002275(A) 申请公布日期 1991.03.26
申请号 US19900518155 申请日期 1990.05.03
申请人 BEUTLER, GARY J.;SCHILLER, JAMES E. 发明人 BEUTLER, GARY J.;SCHILLER, JAMES E.
分类号 A63B21/008;A63B69/00;A63B69/36 主分类号 A63B21/008
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