Lamp mounting structure for bumper

A lamp mounting structure for a bumper of an automobile, the bumper having a surface member, and the lamp having a rear side, comprising:

• a concave portion formed in the surface member of the bumper for receiving the lamp therein, the concave portion having a base part at a bottom thereof in which an opening is formed, and the base part having a rear surface and upper and lower edges which define the opening;
• a lamp mounting portion protrudingly provided on the rear side of the lamp, the lamp mounting portion having a shape which is tightly fitted into the opening of the concave portion and partially protruded therefrom, the lamp mounting portion having upper and lower plate parts each having a flat outer surface, and the upper and lower plate parts being arranged horizontally and parallel with each other;
• and
• upper and lower rib members protrudingly formed on the rear surface of the base part of the concave portion along the upper and lower edges thereof, the upper and lower rib members being arranged horizontally and parallel with each other so as to come into contact with the outer surfaces of the upper and lower plate parts of the lamp mounting portion, respectively, when the lamp is inserted into the concave portion, and the protruding length of the upper rib member is greater than that of the lower rib member in such a manner that the upper rib member completely covers the protruded portion of the lamp mounting portion.