| 摘要 |
In a rotary sensor of this invention, an angle detection member is composed of sliding pieces having contact portions on a rotation body side and a conductive pattern formed on a substrate arranged on a side opposite to the sliding pieces, the operation shaft has a flat projection portion which extends in a perpendicular direction from the center of rotation at the end, an groove portion extends in a direction perpendicular to the axial direction of the operation shaft, the projection portion is mated with the groove portion, and the contact portions of the sliding pieces are located at positions in a direction substantially perpendicular to the groove direction of the groove portion.
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