A connector (1) comprises two lock springs (6) provided with locking claws (6E), respectively, and a control mechanism (7, 8) for controlling positions of the locking claws (6E). The lock springs (6) are arranged parallel to each other in an X-direction. The locking claws (6E) are arranged parallel to each other in the X-direction. The control mechanism comprises a single button (7) and a cam mechanism (8), which is coupled to the single button (7) and has two cam portions (8B) arranged close to the lock springs (6) in the X-direction. When the single button (7) is operated, the cam portions (8B) add forces to the lock springs (6) simultaneously to elastically deform the lock springs (6) so that the locking claws (6E) are retracted inside a shell (4).