| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a transmission sensing device of a gear shift cable to be used for a power-assisted bicycle, which can be easily installed between especially a sprocket and a bottom bracket. <P>SOLUTION: The transmission sensing device includes a body 11 and a sensing member arranged in the power-assisted bicycle 40, a gear shift cable 42 and a control unit 43. The body is mounted on the power-assisted bicycle to surround the gear shift cable, and has a case 11 and a cover 12 to be combined with the case. The gear shift cable includes a conductive wire to be housed between the case and the cover movably. The sensing member includes: a circuit substrate facing the conductive wire which is mounted on the gear shift cable, combined with the body and housed in a housing space of the case; a power wire 211 to be connected to the control unit 43; a plurality of magnetic detectors installed at intervals on the surface of the circuit substrate facing the conductive wire; and a magnetic element to be mounted on the conductive wire housed in the body and facing the magnetic detector. <P>COPYRIGHT: (C)2012,JPO&INPIT |
