Patent ID: 7465890

Claim:
A rotationally-operated electronic component comprising: a cylindrical roller-shaped operating dial provided with a rotary contact point on the right circular portion and a detent generating mechanism on the left circular portion, wherein the detent generating mechanism comprises: a coil spring disposed in a state of being deflected coaxially with the center axis of rotation of the operating dial with respect to an intermediate wall in the operating dial and a movable clicking member disposed in a state of being stored in the operating dial and urged toward the end surface of the left circular portion by an urging force of the coil spring, and is in resilient contact with a fixed clicking member disposed in a state of being fixed to the end surface side of the left circular portion wherein the coil spring and the movable clicking member rotate synchronously with the rotation of the operating dial and wherein a projection projected toward the end surface of the left circular portion of the movable clicking member climbs over a projection projected toward the intermediate wall of the fixed clicking member when being rotated, which provides the user a detent feeling together with a deflecting force of the coil spring in accordance with the movement of the movable clicking member toward the center axis of rotation.