发明名称 Foot, ankle and lower leg exerciser
摘要 The exerciser described herein for strengthening or rehabilitating the feet, ankles and lower legs of the user comprises two foot pedals supported on a vertical bar screwed into the support for the pedals and having a ball joint at the bottom thereof which fits into a cavity in the base support and thereby permits a swivelling action. Between the pedals and the base support there is also a supporting spring for which the compression can be increased or decreased by turning the threaded part of the bar one way or the other way in a threaded opening in the underside of the pedal supporter.
申请公布号 US4739986(A) 申请公布日期 1988.04.26
申请号 US19870058508 申请日期 1987.06.05
申请人 KUCHARIK, EDWARD J.;THAXTER, MITCHEL E. 发明人 KUCHARIK, EDWARD J.;THAXTER, MITCHEL E.
分类号 A63B21/02;A63B21/045;A63B22/18;A63B23/08;(IPC1-7):A63B23/04 主分类号 A63B21/02
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