Vehicular transmission range switching device

A shift range switching device for a vehicle, comprising:

• a cover part configured such that a display part for displaying a working range of a transmission is inserted in one side of the cover part;
• a knob operation part inserted in the cover part so as to be arranged on a side of the display part;
• a rotary unit rotatable to select at least one of a reverse range, a neutral range, a drive range, a sport range, and a manual range, the rotary unit comprising a shaft inserted in a lower end of the knob operation part, a moving block connected to an upper side of the shaft, and a stopper connected to a lower side of the shaft, the rotary unit rotating along with the knob operation part;
• a gear part coupled to a lower portion of the rotary unit to rotate the rotary unit from the at least one of the reverse range, the neutral range, the drive range, the sport range, and the manual range to a parking range;
• a body part comprising a locking part coupled to the rotary unit to restrict rotation of the rotary unit, a sensing part for sensing rotation of the rotary unit and the gear part, and a body receiving the locking part and the sensing part;
• and
• wherein the rotary unit comprises a cam fitted on an outer side of the shaft, a first elastic member inserted in a lower end of the shaft, a slide pin inserted in the shaft so as to penetrate the shaft in a direction perpendicular to the axial direction thereof, and a sensing gear engaged to an upper end of the moving block.