发明名称 Pivotal skipping rope handles having spring resistance
摘要 A skipping rope handle is formed in two connected parts which are biased apart by a spring. The end of the skipping rope is attached to a button which is rotatable within an end of the handle parts. The handle parts can be held in closed condition by moving a ring axially over the rebated end of the handle part, when the handle has a generally conventional form and use. When released by the ring, the handle can be used for exercising the gripping muscles of the hand by forcing the parts towards one another against the bias provided by the spring.
申请公布号 US4714245(A) 申请公布日期 1987.12.22
申请号 US19850761895 申请日期 1985.08.02
申请人 MYUNG HO CHO 发明人 CHO, MYUNG H.
分类号 A63B5/20;A63B21/02;A63B21/05;A63B23/035;A63B23/16;(IPC1-7):A63B5/20;A63B21/30 主分类号 A63B5/20
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