Electrical connector

• US 4,560,231 A
• Filed: 03/10/1983
• Issued: 12/24/1985
• Est. Priority Date: 03/10/1983
• Status: Expired due to Fees

• Current Assignee: ELCO International K K
• Original Assignee: ELCO International Limited
• Inventors: Shirai, Kazuo
• Primary Examiner(s): Weidenfeld, Gil
• Assistant Examiner(s): Bishop, Steven C.
• Application Number:
  US06/473,924
• Time in Patent Office: 1,020 Days
• Field of Search: 339/256 R, 339/256 SP, 339/258 R, 339/258 F, 339/258 P, 339/258 S, 339/6 S, 339/258 RR
• US Class Current: 439/843
• CPC Class Codes: H01R 13/114 co-operating with pins or blades having a square transverse section

Abstract

An electrical contact is provided for receiving a pin contact therein. It includes a receptacle having an elongate spring member positioned therein. A pair of resilient tabs having downwardly projecting contact points define the upper portion of the receptacle. The elongate spring member includes a pair of upwardly extending contact points. A pin contact is inserted between the tabs and the spring member. A projection extending from a side wall of the receptacle limits the deflection of the spring member upon insertion of the pin contact. A plurality of electrical contacts as described above may be incorporated within an insulator to provide a connector.

Claims

1. An electrical contact comprising:

a longitudinal body for receiving a pin contact and including first and second inwardly projecting resilient tabs in opposing relation to each other, a bottom portion, and opposing side walls connecting said tabs and said bottom portion;

an elongate spring member secured to said body and extending longitudinally therein in the direction of insertion of a pin contact, said elongate spring member having an upper surface in opposing relation to said first and second resilient tabs such that a pin contact may be inserted therebetween;

a first pair of contact points extending from said first resilient tab and within said body;

a second pair of contact points extending from said second resilient tab in opposing relation to said first pair of contact points and within said body;

a third pair of contact points extending from said elongate spring member and toward said resilient tabs, said third pair of contact points being positioned between said first and second pairs of contact points in the longitudinal direction;

said contact points being arranged to engage a pin contact upon its insertion within said body between said resilient tabs and said elongate spring member; and

a projection extending from one of said side walls of said body, said projection being positioned beneath said spring member to limit the distance it can deflect upon insertion of a pin contact within said body and above said bottom portion.

2. An electrical contact as defined in claim 1 wherein each of said first and second pairs of contact points extends from an edge portion of said respective resilient tabs.

3. An electrical contact as defined in claim 2 wherein each of said contact points is formed by a triangular impression formed within the tabs and elongate spring member, respectively, said spring member contact points and said upper surface of said spring member defining, in section, a concave surface opposing said tabs.

4. An electrical contact as defined in claim 1 wherein said tabs are integral with said body and define respective opposing edges and a longitudinal space between said edges, said first and second pairs of contact points being defined by each of said edges and in said opposing relation across said longitudinal space, said elongate spring member including a pair of longitudinal side edges, said third pair of contact points extending from said elongate spring member being defined by said edges thereof, said third pair of contact points and said upper surface of said elongate spring member defining in section a concave surface opposing said tabs.

5. An electrical contact as defined in claim 4 wherein said body includes a front end and a rear end, said elongate spring member being attached to said front end and bending back towards said rear end.

6. An electrical contact as defined in claim 5 including a cable grasping section extending from said rear end.

7. An electrical contact as defined in claim 1 wherein said body includes a longitudinal space therein separating said tabs.

8. An electrical contact as described in claim 1 wherein said body is rectangular.

9. The improvement as described in claim 1 wherein said body is cylindrical.

10. An electrical contact as defined in claim 5 wherein said third pair of contact points are each substantially the same distance from said front end of said body.

11. An electrical contact comprising:

a longitudinal body for receiving a pin contact including first and second inwardly projecting and resiliently mounted tabs integral with said body, said tabs having edges in opposing relation and defining a longitudinal space between said edges;

a pair of contact points defined by each of said edges, each of said pairs of contact points being in opposing relation across said longitudinal space;

an elongate spring member secured to said body and extending longitudinally therein in the direction of insertion of a pin contact, said spring member including upper and lower surfaces thereof being in opposing relation to said first and second tabs;

a pair of spring member contact points extending upwardly from said spring member and defined by said side edges thereof, said spring member contact points being positioned longitudinally between said pairs of contact points defined by the edges of said tabs, said spring member contact points and said upper surface of said spring member defining, in section, a concave surface opposing said tabs;

said tab and spring member contact points being arranged to engage and center a pin contact upon its insertion within said body between said tabs and said spring member.

12. An electrical contact as defined in claim 11 wherein said body includes a front end and a rear end, and said spring member contact points are each substantially the same distance from said front end of said body.

13. An electrical contact as defined in claim 11 including a pair of symmetrical projections extending from said body to a position beneath and out of contact with said spring member.