Provided is a connector including first and second connector members connected to each other. The first connector member is formed with a protrusion. The second connector member includes a lever member rotatably provided thereto. The lever member is formed with at least one claw-shaped part configured to lock the protrusion. When connecting the first and second connector members, the lever member is rotated so that the protrusion locked in the claw-shaped part of the lever member is drawn in a connecting direction, and the first and second connector members are moved in the connecting direction and brought into contact with each other. After the movement is restrained, the lever member is further rotated so that the lever member is fixed while being elastically deformed.