发明名称 Tennis stroke training device
摘要 A racquet stroke training device adapted to "fix" a user's forehand racquet stroke comprises, in one embodiment, a band adapted to be worn on a user's arm above the user's elbow, a glove adapted to be worn on a user's hand, and a tether having a first end attachable to the band and a second end attachable to the glove. The tether has (or is dimensioned to have) a given length such that, during a practice stroke, the user's elbow is bent at a substantially 90° angle and the user's wrist is fixed in an upwardly-extending, wrist-locked position.
申请公布号 US2007087868(A1) 申请公布日期 2007.04.19
申请号 US20060636804 申请日期 2006.12.11
申请人 发明人 WILLIAMS RAYMOND A.III
分类号 A63B69/38 主分类号 A63B69/38
代理机构 代理人
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