US Patent 9979107 Connector and composite connector

A connector is arranged in a hole portion of a retaining member and is fitted as a floating connector to a mating connector. For example, the connector includes a plurality of abutment portions, which are brought into abutment against the hole portion when the connector is arranged in the hole portion, and a plurality of biasing portions, which are configured to bias the plurality of abutment portions in respective abutment directions relative to a main outer surface portion of a shell. The plurality of abutment portions include a first abutment portion and a second abutment portion which are formed in an opposite side over a main plane being a plane which includes a main center line and is perpendicular to the main outer surface portion, and a third abutment portion which is formed at a position forming a triangle with the first abutment portion and the second abutment portion.