Patent ID: 6860760

Claim:
A connector comprising a central contact ( 1 ), an insulating housing ( 3 ) having a contact inserting hole ( 31 ) for press-fit therein of the central contact ( 1 ), and an external contact ( 5 ) adapted to engage with the insulating housing ( 3 ) by insertion therein of the insulating housing ( 3 ) with the central contact ( 1 ) press-fitted therein, the insulating housing ( 3 ) being formed in a generally cylindrical shape, characterized in that an engaging hole is formed in a side wall of the central contact ( 1 ), a cantilevered retaining beam is formed on a side wall of the insulating housing ( 3 ), said retaining beam being pressed by the external contact ( 5 ) and moving toward the contact inserting hole ( 31 ) upon insertion of the insulating housing ( 3 ) into the external contact ( 5 ), and a retaining pawl is formed in part of said retaining beam so as to engage with said engaging hole upon movement of the retaining beam toward the contact inserting hole ( 31 ); wherein said engaging hole comprises a pair of engaging holes ( 15 , 15 ) formed in opposed side wall portions of the central contact ( 1 ), said retaining beam comprises a pair of retaining beams ( 35 , 35 ) formed on opposed side wall portions of the insulating housing ( 3 ), and said retaining pawl comprises a pair of retaining pawls ( 37 , 37 ) projecting from front ends of the retaining beams ( 35 , 35 ) toward the contact inserting hole ( 31 ).