Patent ID: 8177573

Claim:
A waterproof plug, which is mounted around an electric wire connected with a terminal to be received in a terminal receiving section of a connector housing, and waterproofs between an inner wall of the terminal receiving section and the electric wire, the waterproof plug comprising: a waterproof member made of elastic material, the waterproof member having a cylindrical main body, a plurality of inner lips projecting inwardly from an inner surface of the main body and surrounding the main body, and a plurality of outer lips projecting outwardly from an outer surface of the main body and surrounding the main body; and a resin member made of synthetic resin, the resin member having a cylindrical portion and a plurality of internal portions projecting from an end of the cylindrical portion along an axis of the cylindrical portion, wherein the plurality of internal portions is arranged with a distance between each other around the cylindrical portion and arranged in the main body of the waterproof member.