| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotation prevention structure of a torque sensor which can be easily fixed to a housing, and a power-assisted bicycle equipped with the rotation prevention structure.SOLUTION: A rotation prevention structure of a torque sensor having a configuration such that a crank shaft 2, a magneto-striction shaft 3 which is rotatable integrally with the crank shaft 2 and is disposed coaxially to the crank shaft 2, a torque sensor 4 which is disposed on an outer periphery of the magneto-striction shaft 3 and detects a torque acting on the magneto-striction shaft 3 are accommodated in a housing 5. The torque sensor 4 has a salient 4d provided on an outer periphery thereof, the housing 5 is provided with an opening with which the salient 4d is engageable, and the salient 4d is engaged with an opening 5c. |
