Vehicular external mirror assembly

Claim 1

an external mirror assembly of a vehicle comprising a casing having a mirror unit mounted thereto and an upright tubular member provided therein and extending along one side of said casing, said tubular member having a closed top end, an open bottom end and a cylindrical inner face; characterized by said external mirror assembly further comprising: an upright first tube having a first open top end, a first open bottom end fixed to said vehicle and a first side wall, said first side wall having a twisted oblique elongated slot extending longitudinally between said first open top and bottom ends; said tubular member of said casing being slidably sleeved onto said first tube; a threaded rotatable shaft mounted in said first tube and having an upper and a lower end; an elevating unit for lifting and turning said casing slidably mounted to said rotatable shaft and confined in said first tube, said elevating unit including an annular member threadably engaging said rotatable shaft, said annular member having a radial stud projecting therefrom, extending through said elongated slot slidably to engage the same and being connected to said tubular member of said casing; and an electrical driving unit connected to said lower end of said rotatable shaft to rotate said rotatable shaft, said electrical driving unit including a motor and a gear assembly interconnecting said lower end of said rotatable shaft and said motor.