Abstract: A lock arm (10) is provided on the upper surface of a female housing (1) and can pivot about hinge pieces (15). Further, an unlock arm (11) for releasing a locked state by the lock arm (10) is provided on the upper surface to pivot in the same direction with supporting legs (20) as a pivot point. A housing-side preventing portion (27) extends in forward and backward directions through a clearance between the supporting legs (20). Arm-side preventing portions (25) project at corresponding positions of the unlock arm (11) while extending in forward and backward directions. The arm-side preventing portions (25) and the housing-side preventing portion (27) contact each other at positions forward or rearward of the supporting legs (20) when the unlock arm (11) is pivoted in either direction, thereby preventing excessive deformation of the unlock arm (11) in both directions.

Abstract: A lock arm (10) is provided on the upper surface of a female housing (1) and can pivot about hinge pieces (15). Further, an unlock arm (11) for releasing a locked state by the lock arm (10) is provided on the upper surface to pivot in the same direction with supporting legs (20) as a pivot point. A housing-side preventing portion (27) extends in forward and backward directions through a clearance between the supporting legs (20). Arm-side preventing portions (25) project at corresponding positions of the unlock arm (11) while extending in forward and backward directions. The arm-side preventing portions (25) and the housing-side preventing portion (27) contact each other at positions forward or rearward of the supporting legs (20) when the unlock arm (11) is pivoted in either direction, thereby preventing excessive deformation of the unlock arm (11) in both directions.