Patent ID: 6325643
Filing Date: 2001-12-04
Classification: H01R

Abstract:
A press-in contact composed of a connection portion adapted to be connected to an electric cable or a circuit of a board, a press-fitting portion adapted to be fixed in a cylindrical through-hole of a printed circuit board by press-fitting, and a contact portion adapted to contact a contact of a mating connector, the press-fitting portion having side walls and a base wall joining the side walls, the side walls and the base wall being defined by an inner periphery forming a U-shaped groove and an outer periphery having two arc portions and a straight portion therebetween, circles inscribing the inner periphery of the U-shaped groove and circumscribing the outer periphery being in an eccentric relation, the side walls becoming progressively thinner toward the open end of the U-shaped groove such as to cause the arc portions to contact the through hole, and the press-fitting portion having a protrusion projecting in the direction of the open end of the U-shaped groove from the base wall at the center of the U-shaped groove, the protrusion extending along the full length of the U-shaped groove, and the protrusion having a size such that the protrusion does not adversely affect a flexibility of the ends of the side walls of the two arc portions at the open end of the U-shaped groove, and wherein the protrusion has a semicircular cross-section whose radius is substantially one half of that of the circle inscribing the inner periphery forming the U-shaped groove.