US Patent 9845868 Shift range switching device for vehicle

A shift range switching device is provided for a vehicle. The device comprises a cover unit, a rotary unit, a control unit, and a body unit, wherein the rotary unit comprises a knob operation part exposed to the outside of the cover part, and a sensing part inserted in the knob operation part to be rotated by the knob operation part and to sense the rotation of the knob operation part. The control part comprises a parking button for shifting a transmission to a parking range, a display part for displaying the working range of the transmission and a sensor for sensing the rotation of the rotary unit. The body unit comprises a locking part coupled or decoupled from the sensing part to restrict the rotation of the rotary unit, and a cam into which one side of the sensing part is inserted to allow returning to the original position.