Fixing structure of contact tails of electrical connector

Claim 1

A fixing structure for contact tails of an electrical connector, said contact tails being aligned in rows and provided with holding projections to be press-fitted in a plurality of fixing slits formed in a locator plate of said electrical connector, said slits being in parallel with each other and having an interval equal to the spacing of said contact tails in one of said rows, said slits extending at right angles to said rows, said fixing structure comprising: a first holding projection for a first said contact tail of one of said rows to be located at a bottom of one of said fixing slits and in the form of a first trapezoid extending perpendicularly to and on both sides of said contact tail; a second holding projection of a second said contact tail in a second of said rows located closer to an entrance of said one fixing slit than said first holding projection is provided with a second trapezoid wider than said first trapezoid, said second holding projection extending perpendicularly to and on both sides of said second contact tail; said one firing slit is formed in a T-shaped configuration in cross-section including a common locating slit portion for receiving parts of said first and second contact tails having no holding projections and a press-fixing slit portion for press-fitting said holding projections of said first and second contact tails therein, said press-fixing slit portion including a plurality of slit portion sections formed progressively larger in stepwise manner as they are closer to an entrance of said one slit, said slit portion sections having widths able to receive said holding projections of said contact tails by press-fitting and said holding projections being pushed and fixed to bottoms of said slit portion sections.