Patent ID: 7758010

Claim:
A side mirror for mounting on a door panel of a vehicle body, comprising: a mirror; an external body for housing and holding the mirror; and a mounting base for supporting the external body, wherein the door panel has a circular hole for positioning the mounting base, which is a cross-shaped boss to be inserted into the circular hole of the door panel, a section of the cross-shaped boss perpendicular to an axis direction has a cross-shape, a diameter of the section is approximately equal to a diameter of the circular hole, wherein the cross-shaped boss has a groove extending in a direction approximately perpendicular to the axis direction on one side surface of four side surfaces which envelop four ends of the cross-shaped boss along the axis direction, respectively, in the groove, a wall face on a tip side of the cross-shaped boss is approximately perpendicular to the one side surface, and a wall face on a root side of the cross-shaped boss is an oblique surface leaving further off a bottom as the oblique surface approaches to the root side, and when the cross-shaped boss is inserted into the circular hole, the groove is hooked with a part of an inner wall of the circular hole so that the side mirror is temporarily fixed on the door panel.