| 摘要 |
<p>The lever arm device has pulleys (4,24) to obtain a single suspension, which are driven in forced direction over deflection rollers (30,31). The deflection rollers are mounted in lever arm (22). The power is transferred to the deflection roller (6), lever arm and impeller (18). The impeller is pressed against the rail (19), such that the lever arm is pressed to the bearing (39) and/or specific structure (8) in downward direction and the two rear wheels (12) of bicycle are driven.</p> |
