Cylindrical socket contact

• US 4,550,972 A
• Filed: 04/09/1984
• Issued: 11/05/1985
• Est. Priority Date: 04/09/1984
• Status: Expired due to Fees

• Current Assignee: AMP Limited
• Original Assignee: AMP Limited
• Inventors: Romak, Paul E.
• Primary Examiner(s): McQuade, John
• Application Number:
  US06/598,127
• Time in Patent Office: 575 Days
• Field of Search: 339/256 R, 339/258 R, 339/258 P, 339/259 R, 339/262 R
• US Class Current: 439/839
• CPC Class Codes: H01R 13/111 co-operating with pins having a circular transverse section
• CPC Class Codes: H01R 13/18 with the spring member surrounding the socket
• CPC Class Codes: H01R 13/193 Means for increasing contact pressure at the end of engagement of coupling part , e.g. zero insertion force or no friction

Abstract

Stamped and formed contact socket has a first circumferentially continuous ring at its pin receiving end and a second circumferentially continuous ring at its inner end. An intermediate portion of the socket comprises an even number plurality of pairs of beams which have their ends integral with the first and second rings. Inwardly formed spherical bosses are provided on the rings which engage a pin upon movement of the pin into the socket. The bosses are spaced along the axis of the socket and are encountered sequentially during movement of the pin into the socket.

Claims

1. A cylindrical stamped and formed contact socket which is intended to receive a contact pin, the socket having an open pin-receiving end and an inner end, the inside diameter of the socket being substantially equal to, and greater than, the diameter of the pin, the socket being characterized in that:

the socket has a first circumferentially continuous ring at the pin-receiving end, a second circumferentially continuous ring at the inner end, and an axially extending seam which extends from the pin-receiving end to the inner end,

an intermediate portion of the socket which is between the first and second rings comprises an even number plurality of at least four substantially identical beams which have ends that are integral with the first and second rings, the beams being at equally spaced angular intervals around the axis of the socket so that a plurality of pairs of diametrically opposed beams are provided,

each of the beams having a contact boss which projects inwardly towards the axis of the socket, the bosses on each pair of opposed beams being aligned with respect to the axis of the socket, the minimum distance between the surfaces of the bosses being substantially equal to, and less than, the diameter of the contact pin,

the associated pairs of beams having their bosses spaced from the first ring at increasing distances,

the pin-receiving end being outwardly flared and a cylindrical supporting sleeve is mounted on the socket in surrounding relationship thereto, the supporting sleeve being between the pin-receiving end and the inner end whereby,

during insertion of the pin into the socket, the bosses on the associated pairs of beams are sequentially encountered by the pin and the beams are sequentially deflected, and after the pin is fully inserted it will be in contact with the socket at a plurality of equally spaced intervals along its axis and around its circumference.

2. A cylindrical stamped and formed contact socket as set forth in claim 1 characterized in that the first circumferentially continuous ring has lances struck therefrom, the lances being against the forward end of the sleeve, the inner end of the socket having a shoulder, the sleeve being against the shoulder.

3. A cylindrical stamped and formed contact socket as set forth in claim 2, the sleeve having lances for retaining the terminal in a connector housing.