Patent attributes
An on-vehicle display apparatus includes a motor, a gear train, a threaded rod, a slider screwed to the threaded rod, and a display main body rotatably connected to the slider. The lead angle of the threaded rod is set greater than the friction angle thereof. The gear train includes first and second gears facing each other. Protrusions provided on one of the first and second gears are fitted in recesses provided in the other. A spring member elastically urges the first gear toward the second gear. A detection sensor detects the size of an external force on the basis of the displacement of the first gear against the spring member in the axial direction. The motor is controlled on the basis of the detection result of the detection sensor such that the display main body is moved away from the external force.