Process for manufacturing electrical contact pin

Details Process for manufacturing electrical contact pin Process for manufacturing electrical contact pin

1987-03-06

1988-03-29

Goldberg, Howard N.

Metal working

Method of mechanical manufacture

Electrical device making

439 82, 439751, H01R 4316

Patent

active

047334657

ABSTRACT:
An electrical contact pin has a fixing part to be fitted into a through hole of a circuit board for fixing without using any solder. The fixing part has a substantially rectangular cross section. A pair of alternating recesses are provided on opposite sides of said rectangular section. A pair of corners closer to said recesses extend beyond said sides to form a pair of projected corners. A process for manufacturing such an electrical contact pin is characterized by the step of pressing a metal work having a substantially rectangular cross section to form said fixing part in a pair of metal dies. A pair of projections are provided on the bottoms of said dies to form said recesses. A pair of opposite sides of said dies are arranged so that there may be small spaces between said pair of sides and the opposite sides of said work before pressed. A part of said bottom of each die is made deeper than the rest of said bottom so as to form said projected corner when said work is squeezed.

REFERENCES:
patent: Re32212 (1986-07-01), Walter et al.
patent: 3827004 (1974-07-01), Heuvel et al.
patent: 4415220 (1983-11-01), Kant
patent: 4475780 (1984-10-01), Walter et al.
patent: 4557539 (1985-12-01), Zust et al.
patent: 4585293 (1986-04-01), Czeschka et al.
patent: 4586778 (1986-05-01), Walter et al.

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