A connector having a connector housing, the connector includes a columnar terminal accommodating portion that is provided with a terminal accommodating chamber accommodating terminals therein and a hood portion that surrounds an outer circumferential surface of the terminal accommodating portion to have a gap between the hood portion and the outer circumferential surface so that a fitting tube of a mating connector is fitted into the gap, and is formed with a retainer insertion opening serving as an insertion port of a retainer locking the terminals in the terminal accommodating chamber. In the connector, the retainer insertion opening has an opening inner-edge surface facings in a fitting direction toward the mating connector, and the opening inner-edge surface is recessed in a direction opposite to the fitting direction and a center part of the opening inner-edge surface is most recessed.
1. A connector having a connector housing, the connector comprising:
a columnar terminal accommodating portion that is provided with a terminal accommodating chamber accommodating terminals therein; and
a hood portion that surrounds an outer circumferential surface of the terminal accommodating portion to have a gap between the hood portion and the outer circumferential surface so that a fitting tube of a mating connector is fitted into the gap, and is formed with a retainer insertion opening serving as an insertion port of a retainer locking the terminals in the terminal accommodating chamber,
wherein the retainer insertion opening has an opening inner-edge surface facing in a fitting direction toward the mating connector, and
the opening inner-edge surface is recessed in a direction opposite to the fitting direction and a center part of the opening inner-edge surface is most recessed.
2. The connector according to claim 1 , further comprising:
a fitting assist lever that is capable of using a lever to apply a force for fitting of the connector to the mating connector.
3. The connector according to claim 1 , wherein
the opening inner-edge surface has a predetermined curvature.
4. The connector according to claim 1 , wherein
the opening inner-edge surface is inclined with respect to a direction orthogonal to the fitting direction.