发明名称 Elliptical exercise methods and apparatus with adjustable crank
摘要 An exercise apparatus has a linkage assembly which links rotation of an adjustable length crank to generally elliptical movement of a force receiving member. The linkage assembly includes a first link having a rearward end which is rotatably connected to the crank, and a forward end which is rotatably connected to a lower end of a suspended link. An upper portion of the suspended link is rotatably connected to the exercise apparatus frame.
申请公布号 US7404785(B2) 申请公布日期 2008.07.29
申请号 US20060476989 申请日期 2006.06.27
申请人 STEARNS KENNETH K;MARESH JOSEPH D 发明人 STEARNS KENNETH K.;MARESH JOSEPH D.
分类号 A63B22/04;A63B21/015;A63B21/068;A63B21/22;A63B22/06;A63B22/08;A63B23/035;A63B23/04 主分类号 A63B22/04
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