Abstract: A rearview mirror assembly for use on a motor vehicle includes a bracket swingably mounted on a base connected to a motor vehicle body and a mirror holder support member housed in a frame of the bracket. The frame of the bracket has a plurality of projecting engaging edges which engage the mirror holder support member. The mirror holder support member is biased into abutment against the engaging edges of the bracket frame under the bias of a resilient plate fastened to the bracket.

Abstract: An inside rearview mirror assembly for use in the passenger compartment of a motor vehicle includes a base, a stay detachably mounted on the base, and a mirror unit supported on the stay. The base and the stay have respective joint surfaces intimately contacting each other, partly spherical interfitting projections and dimples formed respectively on front ends of the joint surfaces, and non-contact surfaces disposed forwardly of the projections and dimples and providing a gap between the stay and the base. When the mirror unit is subjected to an impact, the stay is angularly moved forwardly about the projections and dimples, and detached from the base.

Abstract: A rearview mirror assembly for an automobile includes a base adapted to be mounted on an automobile body and having a substantially vertical support shaft, a rotatable bracket mounted on the base and having a mirror and an electric motor, the rotatable bracket being angularly movable about the support shaft between a normal position and a rearwardly tilted position in response to energization of the motor, and a positioning mechanism for positioning the rotatable bracket in the normal position and the rearwardly tilted position one at a time. The positioning mechanism comprises a plurality of balls partly fitted in a plurality of recesses defined in the base and a plurality of semispherical recesses defined in the rotatable bracket. The recesses of the base have horizontal surfaces. When the rearview mirror assembly moves between the normal position and the rearwardly tilted position, the balls engage only the horizontal surfaces of the recesses of the base.