US3806859A - Contacts for pin terminals - Google Patents

Contacts for pin terminals Download PDF

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Publication number
US3806859A
US3806859A US00328103A US32810373A US3806859A US 3806859 A US3806859 A US 3806859A US 00328103 A US00328103 A US 00328103A US 32810373 A US32810373 A US 32810373A US 3806859 A US3806859 A US 3806859A
Authority
US
United States
Prior art keywords
jaws
bridge
spring
spring contact
panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00328103A
Other languages
English (en)
Inventor
M Madarasz
K Wessel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sealectro Corp
Original Assignee
Sealectro Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sealectro Corp filed Critical Sealectro Corp
Priority to US00328103A priority Critical patent/US3806859A/en
Priority to CA168,742A priority patent/CA973947A/en
Priority to NL7317150A priority patent/NL7317150A/xx
Priority to DE2362301A priority patent/DE2362301A1/de
Priority to FR7344776A priority patent/FR2215714A1/fr
Application granted granted Critical
Publication of US3806859A publication Critical patent/US3806859A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/112—Resilient sockets forked sockets having two legs

Definitions

  • The-present invention comprises a single piece of alloy material having a side connection between the jaws. This provides all the resiliency necessary and also permits the use of a long thin connecting tail formed integral with the rest of the contact.
  • One of the features of the invention is the use of a single sheet of conductive material to form the jaws, the resilient connecting means, and the electrical tail connector.
  • Another feature of the invention is an integral design by which a punch press can manufacture the entire spring contact in a progressive action die, without any manual operations.
  • Another feature of the invention is a design which permits complete manufacture of the contact before being detached from a base strip. In this manner a long line of contacts, or more, can be inserted into their holes in the insulator plate in a single operation. When the contacts are in place, the base strip is broken away.
  • the invention includes a double jawed spring contact made of a single piece of conducting metal.
  • the jaws are formed with an expanding throat to provide easy entry of a terminal pin.
  • the two jaws are connected by an integral bridge piece which joins two side edges of the jaws.
  • a connecting tail is added to the bridge for back connection to an external circuit or to another similar spring contact.
  • Several parts of the contact, such as the tail and the bases of the jaws, are provided with an offset corrugation for strength.
  • FIG. 4 is an end view of the spring contact, installed in the insulator panel and'held by a locking strip. The panel and strip are shown in section.
  • FIG. 5 is a side view similar to FIG. 4 but showing the side of the contact piece.
  • FIG. 6 is a cross sectional view of the two spring members and is taken along line 66 of FIG. 5.
  • FIG. 7 is another cross sectional view of the spring contact device and is taken along line 7-7 of FIG. 6.
  • FIG. 1 shows the contact after several operations in a punching die. All the contacts are held together by an edge strip 10 which is perforated by a plurality of index holes 11 to guide the blank through the press die and insure proper alignment with the die members. As shown in FIG. 1 blanking holes 12 have been cut in the strip leaving lugs 13 to hold the spring blanks in position for further operations by the die. At this time the two portions 14, which will be bent to form the jaws, are flat and are separated by a shear line 15, an opening 16 and a connecting tail 17.
  • Corrugations '18 are formed in the lower portions of the jaws to stiffen them and a single long corrugation 20 is formed in the contact tail 17 to make it less flexible.
  • a thin strip 21 of gold or silver is deposited as indicated, either by plating or some other convenient cladding method.
  • FIG. 3 shows a top view of the spring contact with the jaws 22 opposed to each other but making resilient contact only at their edges. A small space 24 is left at the center of the jaws to make the entry of a terminal pin easier.
  • a plurality of spring contacts are formed as described above and spaced along the base strip 10, being held in position by the lugs 13. This strip of contacts is then entered into a series of holes 25 formed in a flat non-conductor 26. The holes 25 are equally spaced to conform to the spacing of the spring contacts on strip 10 so that all the contacts in any row may be entered at the same time.
  • a retaining strip 27 may be entered at the lower side of the insulator panel 26 and through holes 16 in each spring. If the spring contacts are to be separately connected, the strip 27 will be an insulator such as Bakelite or vulcanized fiber. If the spring contacts are to be connected together, the retaining strip 27 may be a conductor. The strip may be bent into a corrugated shape as shown in FIG. 4 to increase its resiliency.
  • the corrugations 18 are resiliently pressed against the inner surface of holes 25 so that they will not move out of alignment when in service.
  • the length of the contact tails 17 can be made as long as desired depending upon the width of the original blanking strip.
  • the invention is used to assemble a large plurality of spring contacts, as many as several hundred, on a single insulator base to form a plug board for many uses in communication networks, computers, and laboratory testing equipment.
  • a spring assembly of a spring contact mounted in a hole in an insulated panel comprising:
  • a spring contact having:
  • a bridge connecting the two jaws at theiredge portions and biased to press the two jaws toward each other to grip a terminal pin, said bridge positioned at a distance from the sloping end surfaces and creating a transverse opening between the insulating panel and an edge of the bridge as the bridge and jaws are inserted into a hole in the panel;
  • a connecting tail formed integral with said bridge connection to an external circuit, said tail formed with a linear corrugation for strength and extending from the bridge away from said jaw;
  • cut-away portions adjoining the lower ends of the jaws and engaging a side of the insulating panel for limiting the degree of insertion of the spring contact into the insulating panel; and an insulating retaining strip positioned in said transverse opening defined between the bridge and the lower surface of the insulating panel for holding the spring contact in position.
  • a spring contact assembly according to claim 1 wherein a band of gold is deposited on the spring material prior to forming to present a gold conductive surface at the points in the jaws where a conductive pin is engaged.
  • a spring contact assembly as claimed in claim 1 wherein a plurality of spring contacts are mounted in alignment on an insulator panel and said retaining strip engages all of the holes in the spring contacts to secure them in place and to connect them together.

Landscapes

  • Manufacturing Of Electrical Connectors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
US00328103A 1973-01-30 1973-01-30 Contacts for pin terminals Expired - Lifetime US3806859A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US00328103A US3806859A (en) 1973-01-30 1973-01-30 Contacts for pin terminals
CA168,742A CA973947A (en) 1973-01-30 1973-04-13 Contacts for pin terminals
NL7317150A NL7317150A (de) 1973-01-30 1973-12-14
DE2362301A DE2362301A1 (de) 1973-01-30 1973-12-14 Elektrische kontakte fuer anschlussstifte
FR7344776A FR2215714A1 (de) 1973-01-30 1973-12-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00328103A US3806859A (en) 1973-01-30 1973-01-30 Contacts for pin terminals

Publications (1)

Publication Number Publication Date
US3806859A true US3806859A (en) 1974-04-23

Family

ID=23279529

Family Applications (1)

Application Number Title Priority Date Filing Date
US00328103A Expired - Lifetime US3806859A (en) 1973-01-30 1973-01-30 Contacts for pin terminals

Country Status (5)

Country Link
US (1) US3806859A (de)
CA (1) CA973947A (de)
DE (1) DE2362301A1 (de)
FR (1) FR2215714A1 (de)
NL (1) NL7317150A (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2620757A1 (de) * 1976-05-11 1977-11-17 Siemens Ag Anschlusselement fuer traegerplatten
US4077687A (en) * 1974-07-22 1978-03-07 Square D Company Stab assembly for vertical bus bars plug-on unit
US4317609A (en) * 1979-08-08 1982-03-02 Gte Products Corporation Electrical contact
FR2601517A1 (fr) * 1986-07-11 1988-01-15 Lecourtois Eugene Element femelle de contact, bande formee de tels elements et son procede de fabrication
US4723923A (en) * 1986-09-05 1988-02-09 Augat Inc. Low insertion, stamped and formed contact sleeve
US4775336A (en) * 1987-02-06 1988-10-04 Amp Incorporated Contact insertion feature
DE3939746A1 (de) * 1989-12-01 1991-06-06 Cannon Electric Gmbh Stift zum verrastbaren befestigen in einer bohrung einer leiterplatte oder dgl.
DE9005341U1 (de) * 1990-05-10 1991-09-19 Grote & Hartmann Gmbh & Co Kg, 5600 Wuppertal Lötkontakt mit Kontaktstift
US20140060926A1 (en) * 2011-03-16 2014-03-06 Peter Winkler Contact element and method for manufacturing same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2423069A1 (fr) * 1978-04-10 1979-11-09 Rkg Element femelle de contacts electriques
ES257552Y (es) * 1979-04-05 1982-05-01 Conectador de clavija,por ejemplo para cuadros de circuitos impresos
DE3233652C2 (de) * 1982-09-10 1986-04-10 Siemens Ag, 1000 Berlin Und 8000 Muenchen Kontaktfeder für vielpolige Steckverbinder und -gehäuse

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2417967A (en) * 1944-02-23 1947-03-25 Mallory & Co Inc P R Contact element
US3152849A (en) * 1961-01-16 1964-10-13 Sealectro Corp Electric socket contacts and electriccircuit selectors using such contacts
US3346834A (en) * 1964-10-20 1967-10-10 Amp Inc Feed-thru connector
US3601775A (en) * 1969-02-04 1971-08-24 Amp Inc Printed circuit connector
US3681741A (en) * 1970-05-14 1972-08-01 Rafi Raimund Finsterholgl Elek Holder for electrical lamps with a glass base cap
US3697925A (en) * 1970-07-22 1972-10-10 Amp Inc Termination means for flat cable
US3720907A (en) * 1971-02-12 1973-03-13 Amp Inc Panel connector employing flag-type terminals and terminal extracting tool for the same
US3725843A (en) * 1971-07-06 1973-04-03 Teradyne Inc Bussing construction for printed circuit connectors

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2417967A (en) * 1944-02-23 1947-03-25 Mallory & Co Inc P R Contact element
US3152849A (en) * 1961-01-16 1964-10-13 Sealectro Corp Electric socket contacts and electriccircuit selectors using such contacts
US3346834A (en) * 1964-10-20 1967-10-10 Amp Inc Feed-thru connector
US3601775A (en) * 1969-02-04 1971-08-24 Amp Inc Printed circuit connector
US3681741A (en) * 1970-05-14 1972-08-01 Rafi Raimund Finsterholgl Elek Holder for electrical lamps with a glass base cap
US3697925A (en) * 1970-07-22 1972-10-10 Amp Inc Termination means for flat cable
US3720907A (en) * 1971-02-12 1973-03-13 Amp Inc Panel connector employing flag-type terminals and terminal extracting tool for the same
US3725843A (en) * 1971-07-06 1973-04-03 Teradyne Inc Bussing construction for printed circuit connectors

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4077687A (en) * 1974-07-22 1978-03-07 Square D Company Stab assembly for vertical bus bars plug-on unit
DE2620757A1 (de) * 1976-05-11 1977-11-17 Siemens Ag Anschlusselement fuer traegerplatten
US4317609A (en) * 1979-08-08 1982-03-02 Gte Products Corporation Electrical contact
US4806121A (en) * 1986-07-11 1989-02-21 N.E.D. Nicomatic Electronic Department Contact socket element, strip comprising it and its manufacturing
FR2601517A1 (fr) * 1986-07-11 1988-01-15 Lecourtois Eugene Element femelle de contact, bande formee de tels elements et son procede de fabrication
WO1988000762A1 (fr) * 1986-07-11 1988-01-28 Lecourtois Eugene Element femelle de contact, bande le comportant et procede de fabrication
US4723923A (en) * 1986-09-05 1988-02-09 Augat Inc. Low insertion, stamped and formed contact sleeve
US4775336A (en) * 1987-02-06 1988-10-04 Amp Incorporated Contact insertion feature
DE3939746A1 (de) * 1989-12-01 1991-06-06 Cannon Electric Gmbh Stift zum verrastbaren befestigen in einer bohrung einer leiterplatte oder dgl.
DE3939746C2 (de) * 1989-12-01 1998-08-20 Itt Cannon Gmbh Stift zum verrastbaren Befestigen in einer Bohrung einer Leiterplatte oder dgl.
DE9005341U1 (de) * 1990-05-10 1991-09-19 Grote & Hartmann Gmbh & Co Kg, 5600 Wuppertal Lötkontakt mit Kontaktstift
US20140060926A1 (en) * 2011-03-16 2014-03-06 Peter Winkler Contact element and method for manufacturing same
US9627781B2 (en) * 2011-03-16 2017-04-18 Robert Bosch Gmbh Contact element and method for manufacturing same

Also Published As

Publication number Publication date
FR2215714A1 (de) 1974-08-23
CA973947A (en) 1975-09-02
NL7317150A (de) 1974-08-01
DE2362301A1 (de) 1974-08-08

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