Patent ID: 7204725

Claim:
A connector, comprising: a housing formed with at least one cavity for receiving a terminal fitting; a retainer insertable into the housing for retaining the terminal fitting and including at least one leg insertable into an insertion groove in a side wall of the cavity, a lock provided on the leg being resiliently engageable with an engaging portion in the insertion groove to lock the retainer at a locking position where the retainer retains the terminal fitting; and an auxiliary locking mechanism in the form of at least one projection and at least one recess formed on surfaces of the leg of the retainer substantially facing the cavity and on a facing surface of the insertion groove so that the projection and the recess are substantially facing each other, the projection being fittable into the recess and the projection and the recess being disposed to be engageable with each other when the retainer is inserted to the locking position.