Patent ID: 8388388

Claim:
A connector comprising: a terminal fitting comprising a body portion having substantially square tube shape; and a housing comprising a cavity that receives the terminal fitting when the terminal fitting is inserted into the cavity, wherein the body portion comprises a first protrusion that protrudes from an outer surface of the body portion and an interference avoiding portion that is dented from the outer surface of the body portion, wherein the first protrusion and the interference avoiding portion are disposed to be opposed to each other substantially in a diagonal line on a virtual projection plane where the first protrusion and the interference avoiding portion are projected in a direction in which the terminal fitting is inserted into the cavity, and wherein the cavity is formed with, in an inner surface thereof, a first groove into which the first protrusion is allowed to enter only when the terminal fitting has a proper insertion posture relative to the cavity and an interference portion that is formed to swell from the inner surface of the cavity to narrow a gap with the interference avoiding portion.