| 摘要 |
The revolution counter for a bicycle comprises a sensor (2) connected to a frame of a bicycle and sensitive to a proximity of an element (3) connected to a rotating part (4) with respect to the bicycle frame in a position on the rotating part (4) which is such that the element (3) passes cyclically in proximity of the sensor (2). The sensor (2) and the element (3) lie in a perpendicular plane to a rotation axis of the rotating part (4). |
