SENSOR ROTOR FOR ROTATION ANGLE SENSOR, THROTTLE POSITION SENSOR, DEVICE UNIT, AND INTAKE DEVICE OF ENGINE

摘要

PROBLEM TO BE SOLVED: To improve detection accuracy by suppressing decline of detection accuracy of a rotation angle caused by decline of assembly accuracy in the axial direction of a sensor rotor.

SOLUTION: The sensor rotor 142 includes a rotor body 143 connected to a throttle shaft, and a brush 147 having a sliding contact 292 to be slidably contacted with a resistor mounted on the rotor body 143 and installed on the fixing side. The brush 147 is fixed to the rotor body 143 by a locking action of a locking pawl 295 to a protrusion 283 by relatively inserting the protrusion 283 provided on the rotor body 143 into a locking hole 294 provided in the brush 147. The sensor rotor 142 has a configuration for preventing rotation of the brush 147 in the axial rotation direction of the protrusion 283, by using the protrusion 283 and the locking hole 294 as a pair, and by the locking action of the locking pawl 295 to the protrusion 283.

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