Junction between an intelligent contact terminal and a cable

• US 6,135,806 A
• Filed: 07/15/1999
• Issued: 10/24/2000
• Est. Priority Date: 05/27/1996
• Status: Expired due to Fees

• Current Assignee: IWS International Incorporated
• Original Assignee: IWS International Incorporated
• Inventors: Pohjola, Jorma
• Primary Examiner(s): Bradley, Paula
• Assistant Examiner(s): TA, THO DAC
• Application Number:
  US09/194,255
• Time in Patent Office: 467 Days
• Field of Search: 439/425, 439/422, 439/426
• US Class Current: 439/425
• CPC Class Codes: H01R 12/67 insulation penetrating terminals

Abstract

This invention relates to a junction between an intelligent contact terminal (3) and a cable (1, 2), said junction comprising connector pins (4) extending from the contact terminal (3), penetrating into a cable insulation sheath (1) and piercing flat wires (2) included in the cable and provided with lip portions (10) pressing against the lateral faces of the pins. In order to provide a secure contact, the pins (4) are slightly conical or tapered at least within the region of said lip portions (10). By designing the flat wire as a multilayer wire, the lip portions (10) of the wire layers together can be brought to provide an increased contact area. In addition, the multilayer wire (2) is penetrable with a lesser application of force if the cable is provided with preliminary holes for the pins (4).

Claims

1. A junction between an intelligent contact terminal (3) and a cable (1, 2), said junction comprising at least two blunt-ended connector pins (4) extending from the intelligent contact terminal (3), the at least two blunt-ended connector pins (4) having been forced into preliminary holes, made in the cable (1, 2) with a pointed tool and said preliminary holes in said cable having a diameter which is slightly smaller than that of the at least two blunt-ended connector pins (4), said at least two blunt-ended connector pins having slightly conical or tapered side face and penetrating into a cable insulation sheath (1) and at least two flat conductors of said cable through said preliminary holes, said at least two blunt-ended connector pins piercing said at least two flat conductors, said at least two flat conductors included in the cable and provided with lip portions (10) pressing against the lateral faces of the pins, the blunt ends of the connector pins (4) remaining inside the cable sheath (1), wherein each of the flat conductors (2) forms a single multilayered conductor whereby, at a junction between the conductor (2) and the pin (4), the lip portions (10) produce an increased contact area which presses against said slightly conical or tapered side face of the connector pin (4).

2. A junction as set forth in claim 1, wherein, over the length of 5 mm, the pin has a conicity or tapering which is 0.5-0.3 mm.

3. A junction as set forth in claim 1 or 2, wherein the pins (4) are coated with a highly conductive, soft metal, such as gold or bismuth.