发明名称 Exercise machine with spring-cam arrangement for equalizing the force required through the exercise stroke
摘要 An exercise machine with a user-actuated force-applying member utilizes a spring to resist the physical force applied by the user. The physical force is applied to the spring through a cam arrangement which equalizes the force required throughout the exercise stroke.
申请公布号 US4231568(A) 申请公布日期 1980.11.04
申请号 US19790007427 申请日期 1979.01.29
申请人 RILEY, ROBERT Q.;CAREY, DAVID L. 发明人 RILEY, ROBERT Q.;CAREY, DAVID L.
分类号 A63B21/00;A63B21/02;A63B21/04;(IPC1-7):A63B21/04 主分类号 A63B21/00
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