US Patent 7371102 Lock structure of connector

In a connector lock structure 1 provided at female and male connectors which can be fitted together, the female connector 2 has an engagement portion 14, and a slide lock member 13 is supported on the male connector 3 so as to move at least in connector-inserting and connector-withdrawing directions. The slide lock member 13 includes a retaining portion 16 for engagement with the engagement portion 14, and urging member 36 for urging the slide lock member 13. When the engagement portion 14 reaches an engagement position where it is engaged with the retaining portion 16 at the time when the female and male connectors are completely fitted together, the slide lock member 13 is automatically moved by the urging member 36, so that the retaining portion 16 is engaged with the engagement portion 14.