发明名称 Method for and racket to teach tennis
摘要 A tennis racket is provided with a one-way free hinge adjacent the head of the tennis racket between the handle and the racket head to provide a hinged movement of the head of the racket with relation to the handle when the racket is swung and sufficient centrifugal force is provided to the head to swing it away from the racket with no bias from the hinge means. Additionally, the hinge provides no bias to force or bring the head back to the integral or aligned position with the handle, so that only when an improper swing of the racket occurs to apply centrifugal force to the head, will the head swing relative to the handle thereof. The racket enables a tennis player to be taught or to practice swinging a tennis racket with the proper "lag" and follow through so that the tennis player feels the correct rhythm and timing when stroking through a swing.
申请公布号 US5560600(A) 申请公布日期 1996.10.01
申请号 US19950369175 申请日期 1995.01.05
申请人 FITZSIMONS, E. LUKE;DENT, PHILLIP C. 发明人 FITZSIMONS, E. LUKE;DENT, PHILLIP C.
分类号 A63B49/02;A63B59/00;A63B69/38;(IPC1-7):A63B49/00 主分类号 A63B49/02
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