US Patent 10305223 Connector with projecting sub-connector lance

A connector includes a housing having a sub-connector accommodation hole passing through in a forward and backward direction, and a sub-connector having a cavity passing through in the forward and backward direction and assembled by being inserted into the sub-connector accommodation hole of the housing from a backward direction while a terminal connected to a wire being inserted into the cavity. A lance with flexibility to be locked with the terminal is formed on an inner wall of the cavity and in a case of halfway insertion of the terminal into the cavity. The lance projects outward from the sub-connector to abut, at an angle, against an opening exterior edge of the sub-connector accommodation hole.