Patent ID: 8029150

Claim:
An outer mirror comprising: a mirror base which is attached to a side surface of a vehicle body; a shaft which is erected on the mirror base and has a base portion attached to the mirror base and a support portion; and a mirror housing which is provided with a mirror for reflecting a rearward of the vehicle body and is rotatably supported by the support portion of the shaft such that a top surface of the mirror base and a bottom surface of the mirror housing form a gap exposing a portion of the base portion of the shaft, wherein the portion of the base portion of the shaft has at least one of a plurality of concave portions and a plurality of convex portions on an outer circumferential surface of the portion of the base portion of the shaft, the at least one of the plurality of concave portions and the plurality of convex portions is positioned on a front side of the vehicle body such that the at least one of the plurality of concave portions and the plurality of convex portions reflects a wind blowing through the gap by generating a pressure fluctuation.