TECHNICAL FIELD

The present invention relates to a connector.

BACKGROUND

FIGS. 9A and 9Bshow a conventional connector (refer to Patent Document 1). This connector630includes a housing631accommodating a female terminal and a front holder650mounted so as to be movable with respect to the housing631between a provisionally-engaged position and a completely-engaged position.

The front holder650detects an incomplete insertion of the female terminal during the movement from the provisionally-engaged position to the completely-engaged position, and performs double engagement of the female terminal by being positioned in the completely-engaged position (i.e., restricts deflection of a female terminal retaining lance not shown). Further,FIGS. 9A and 9Billustrate the front holder650that is about to release a completely-engaged state where the front holder650is positioned to the completely-engaged position and completely engaged with the housing631.

The front holder650includes a complete engagement elastic arm657having a complete engagement projection657athat engages with a complete engagement hole644formed in the housing631. The complete engagement elastic arm657includes an insertion opening657bfor a jig658that is arranged at an inner side with respect to a complete engagement projection657a. The jig658is arranged to release the completely-engaged state of the front holder650. This insertion opening657bis arranged along a direction orthogonal to the movement direction of the front holder650from the provisionally-engaged position to the completely-engaged position.

To release the completely-engaged state of the front holder650to shift to the provisionally-engaged position, a distal end658aof the jig658is inserted into the insertion opening657bto lift the complete engagement elastic arm657, and, while maintaining this state, the jig658is operated toward the provisionally-engaged position orthogonal to the insertion direction so as to engage the jig658with the complete engagement projection657a. In this manner, the completely-engaged state of the front holder650is released, allowing to shift from the completely-engaged position to the provisionally-engaged position.

PRIOR ART DOCUMENT

Patent Document 1: JP 2018-98114 A

SUMMARY OF THE INVENTION

Problem to be Solved by the Invention

In the conventional connector630described above, when releasing the completely-engaged state of the front holder650and shifting to the provisionally-engaged position, it requires a complex operation including inserting the jig658into the insertion opening657bto lift the complete engagement elastic arm657and moving the jig658to the direction orthogonal to the insertion direction.

In view of this, an object of the present invention is to provide a connector which includes an engagement projection and an arm portion and which has a structure capable of releasing, with a simple operation, engagement of the arm portion engaged with the engagement projection.

Solution to the Problem

In order to achieve the above-described object, the present invention provides, in one aspect, a connector including: a first housing and a second housing that are configured to be fitted to each other; an engagement projection formed on the second housing so as to protrude from an outer surface of the second housing; an arm portion that is formed on the first housing and that is configured to engage with the engagement projection, the arm portion having an opening to which the engagement projection is fitted, wherein, in a state where the arm portion is engaged with the engagement projection and the engagement projection is fitted to the opening, a gap for insertion of a jig exists in the opening at a lateral side of the engagement projection, the lateral side being adjacent to the engagement projection in a direction orthogonal to a fitting direction in which the second housing is fitted to the first housing, the second housing includes a release operation portion, the release operation portion being formed as a recess on the outer surface of the second housing and being arranged such that the jig is insertable from the gap, the release operation portion extending to a rear side in the fitting direction with respect to the engagement projection, and an inclined surface is formed at a rear end in the fitting direction of the release operation portion, the inclined surface being continuous with the outer surface of the second housing.

Advantageous Effect of the Invention

According to the present invention, it is possible to release, with a simple operation, the engagement of the arm portion engaged with the engagement projection.

