Multicontact electric connector

1/ A multiple-contact electrical connector comprising a base (1) of electrically insulating material, at least two pairs (2, 3) of input/output terminals (4-6), two needles (11, 12) of electrically conductive material respectively interconnecting the input/output terminals of each pair, first and second plates (21, 22) made of electrically insulating material, said first and second plates having through orifices (31-34), said needles being engaged through these orifices so that their ends (35-37) emerge from opposite sides of said first and second plates, the emerging ends of said needles constituting the input/output terminals (4-6) of said two pairs, and means for fixing the first and second plates relative to the base,

• the connector being characterized by the fact that it further comprises:
• at least third and fourth plates (23, 24);
• means for positioning the third and fourth plates (23, 24) between said first and second plate (21, 22), said second, third, and fourth plates having through orifices (32, 34, 41-44) having at least one cross-section presenting a minimum value substantially equal to the cross-section of the needles (11, 12), said orifices being made in the second, third, and fourth plates in such a manner that the needles are slidably mounted in said orifices;
• and
• means (50) for causing the third and fourth plates (23, 24) to move respectively in two substantially opposite directions so as to impart two pre-buckles (61-64) to each needle on either side of the needle's rest position.