发明名称 Fitness machine with leaf springs - has constant spring force despite rapid movement with force adjustment by adjusting spring bending point
摘要 <p>Fhe fitness machine takes the forces on the lever from springs instead of weights. The spring force remains constant during the lever stroke, and the force on the lever does not change by quick movements. The force adjustment to the lever does not require prior movement. The adjustment occurs by adjusting the spring bending point, and the machine does not produce any disturbing noise. The mechanical embodiment also is very light.</p>
申请公布号 NL8800024(A) 申请公布日期 1989.08.01
申请号 NL19880000024 申请日期 1988.01.07
申请人 CORNELIS JOHANNES BIERHOFF, VRIJHOEF 42 TE 3833 HX LEUSDEN. 发明人
分类号 A63B21/04;A63B21/045 主分类号 A63B21/04
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