| 摘要 |
<p>A human powered vehicle e.g. a cycle (1), a pedal mechanism which comprises two rotatable pedal arm constructions, each comprising at least two pedal arms (2) which are coupled to each other such that' they have a constant phase difference and are connected on their free end zones to a pedal carrier (34). The distance between the rotation bearings (3) carrying the pedal arms relative to the frame (31) is smaller than the length of the pedal arms, and the arms have a form and position relative to the rotation bearings present on the frame such that at each angular position they are at some distance from each other.</p> |
