Connecting structure of connector and terminal fitting

A connecting structure of a connector and a terminal fitting in which the terminal fitting is inserted into a terminal housing cavity formed in a connector housing from one end opening in a longitudinal direction and is latched and connected at a retaining portion formed on an inner wall of the terminal housing cavity, the connecting structure comprising:

• a lance hole configured to be formed at a given position of an outer wall of the terminal fitting in the longitudinal direction, the retaining portion being resiliently inserted into the lance hole;
• and
• a latching protrusion configured to be formed integrally at a hole edge portion on the front end side of the lance hole, an end edge portion of the retaining portion inserted in the lance hole abutting and latching on the latching protrusion in an axis direction, wherein
• the latching protrusion is formed in substantially a conical shape for which a diameter gradually expands from a vertex on a front side toward a rear end portion on hole edge portion side of the lance hole, and includes a cutout portion with a part of the latching protrusion from the vertex toward rear end portion side being cut out.