US2697821A - Electrical contact socket - Google Patents

Electrical contact socket Download PDF

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Publication number
US2697821A
US2697821A US120044A US12004449A US2697821A US 2697821 A US2697821 A US 2697821A US 120044 A US120044 A US 120044A US 12004449 A US12004449 A US 12004449A US 2697821 A US2697821 A US 2697821A
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US
United States
Prior art keywords
socket
tongues
electrical contact
press
press bar
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
US120044A
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English (en)
Inventor
Utz Friedrich
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Individual
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Individual
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Publication date
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Publication of US2697821A publication Critical patent/US2697821A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K23/00—Making other articles
    • 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
    • H01R13/111—Resilient sockets co-operating with pins having a circular transverse section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending

Definitions

  • ELECTRICAL CONTACT socxET Filed oct. 7, 1949 i 23 l l l l LJ /M/f/vrae @Fai/CH (/rz United States Patent C l 2,697,821 ELECTRICAL CONTACT SOCKET Friedrich Utz, Obemdorf-Aistaig, Wurttemberg, Germany Application October 7, 1949, Serial No. 120,044 Claims priority, application yGermany April 22, 1949 1 Claim. (Cl. 339-258)
  • the present invention relates to electrical contact sockets provided with longitudinal slits to receive a plug pin for making electrical connections.
  • the object of the present invention is to produce a socket avoiding these disadvantages by making the socket tongues in such a way that the tongues themselves exert an elastic clamping effect. According to the invention this is accomplished by widening or bulging out the base of the socket tongues, produced by the longitudinal slits,-and by slightly bulging them so that they clamp elastically towards each other.
  • socket tongues are spread out by a press bar which has a thickened head and are then pressed down onto the unthickened part (shaft) of the press bar by pressing tools which move preferably in a direction vertically to the axis of the socket.
  • the press device is designed in such a way that the entire shaping of the socket tongues is made by a single operation.
  • Figs. l, 2 and 3 show a socket in various steps of production on an enlarged scale in which Figs. 1 and 2 are longitudinal cross sections and Fig. 3 is a side view of the finished socket.
  • Fig. 4 is a longitudinal cross section through the middlev of the press device.
  • the socket consists of a cylindrical bar 1 on which the socket tongues 4 are made by means of a central drill hole 2 and for instance four radial longitudinal slits 3.
  • the production method may be explained by referring to Figs. 1 to 3.
  • a cylindrical press bar 5, the head 5 of which is slightly enlarged is inserted between the socket tongues 4. Thereby the socket tongues 4 are spread out as shown in Fig. 1.
  • the enlarged head 5' of the press bar 5 has a spherical shape (ball point) and the diameter of this sphere is slightly greater than the diameter of the other part (shaft) of the press bar 5.
  • the socket tongues will be spread out more and more according to the deeper penetration of the press bar 5, 5 until the press bar touches the end of the socket drill hole 2.
  • the spread out socket tongues will then be pressed together, and down onto the press bar 5 by press tools 6 which move from the outside radially and in a direction vertical to the axis of the socket tongues as shown in Fig. 2.
  • the socket tongues 4 will be slightly enlarged at their base, indicated at 7 in Fig. 2.
  • the tongues 4 will be slightly bent at a point indicated at 8 in Fig. 2.
  • the press tools 6 move outwards and the press bar 5, 5 will be extracted from the socket in an upward- 2,697,821 Patented Dec. 21, 1954 ly direction.
  • the socket tongues 4 have now been shaped as shown in Fig. 3.
  • the tongues 4 touch each other at their upper ends 9 and exert an elastic clamping effect.
  • the slits 3, having had originally parallel sides, have now lzcome wedge shaped tapered from the base to the top It will be understood forthwith that a plug pin inserted between the elastically clamping socket tongues 4 will be elastically embraced and securely held. An arcing as it has been previously experienced and has destroyed the contact surfaces can not occur.
  • a ring shaped stop is provided to limit the outward movement of the said tongues. This stop will be more fully described in connection with the press device.
  • the press device consists of a bottom tool and an upper tool.
  • the bottom tool consists of a base plate 10 and a holding and guiding body 11 the centrally drilled hole 12 of which receives the socket 1, 4.
  • the socket 1, 4 is held by a clamping member 14 influenced by a helical compression spring 13 and can be tightened by means of a hand lever 16 designed as an eccentric 15.
  • the clamping member 14 is rotatably connected with the hand lever 16 by a bolt 17.
  • interchangeable supports 18, 19 are provided at the bottom of the holding body 11.
  • the support for the lower end of the socket 1 can, of course, be designed in another manner, for instance it could be made adjustable in height.
  • the upper part 20 of the drill hole 12 has a somewhat greater diameter than the lower part, the walls of which serve as a stop to limit the spreading movement of the socket tongues if a plate 24 is not used.
  • Fig. 4 there are four pressing tools 6 guided in radially extending guides on the upper part of the holding body 11.
  • Each of the said pressing tools 6 has an angular shaped projection 6 extending downwards and is influenced by a helical compression spring 22 arranged in the holding body 11.
  • the said projections 6 of the pressing tools 6 each have at their upper outer edge a Working plane 23, which is either oblique or spherically shaped.
  • the pressing tools 6 are covered by a plate 24 which is rigidly connected with the holding body 11.
  • the said plate 24 has a central drill hole 25 the diameter of which is approximately the same as the diameter of the drill hole 20.
  • the walls of the hole 25 serve as a stop to limit the spreading movement of the socket tongues.
  • the shoulder 24 of the disc 24 is curved downwardly and cooperates with recesses 26 of the pressing tools 6.
  • the upper tool consists of a body 27 the inner lower part of which has a conically shaped cavity 28.
  • the said body 27 has a central drill hole 29 into which a guide member 30 is threaded.
  • This guide member 30 guides a movable shaft 31 on the lower end of which the press bar 5 is xed.
  • a helical compression spring 32 abutting against a collar 31 of the shaft 31 always presses the shaft 31 downwardly.
  • the said helical compression spring 32 abuts with its upper end against a nut 33 screw threaded into the drill hole 29. By turning the said nut 33 the pressure of the helical spring 32 can be varied.
  • a socket 1, 4 will be inserted in the hole 12 of the holding body 11 and clamped by the eccentric clamping lever 15, 16.
  • the upper tool will then be moved downwards and in connection herewith the press bar 5 with its spherically shaped head 5 will be inserted between the socket tongues 4 and will spread them outwardly.
  • the outwardly spread tongues 4 contact the wall of the drill hole 25 of the cover plate 24 so that the upper part of the tongues 4 are prevented from spreading out further.
  • the strength of the helical spring 32 is so great that it will not be compressed before the press bar 5 has come to rest at the bottom of the socket drill hole 2.
  • Electrical contact socket for receiving a cylindrical insertable rod comprising a cylindrical bar, anda plurality of tongues each having a free end and a base endy and being integral with the bar at the base'endof each tongue. and separated by longitudinal slits, the tongues being arranged adjacent each other in an annular arrangement and each tongue bulging slightly outwardly at the base in a radial direction as a curved portion and projecting slightlyinwardly to a point just beyond the bulge and then sloping in a gradual direction to the free end of each tongue, each slit being approximately elongatedv V-shaped with the apex of the V at the free ends of two adjacent tongues and the open part of the V at the base endof two adjacent tongues formed by the two adjacent tongues bulging slightly outwardlyl and then inwardly', and said tongues each having a spring action at its free end due to the bulge at the base and the inwardly directed free end of the tongue to resiliently grip the rod by means of the free ends of the tongues.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
US120044A 1949-04-23 1949-10-07 Electrical contact socket Expired - Lifetime US2697821A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP40503D DE804015C (de) 1949-04-23 1949-04-23 Elektrische Kontakthuelse mit Laengsschlitzen
CH663602X 1949-05-21

Publications (1)

Publication Number Publication Date
US2697821A true US2697821A (en) 1954-12-21

Family

ID=39421823

Family Applications (1)

Application Number Title Priority Date Filing Date
US120044A Expired - Lifetime US2697821A (en) 1949-04-23 1949-10-07 Electrical contact socket

Country Status (7)

Country Link
US (1) US2697821A (xx)
BE (1) BE489610A (xx)
CH (1) CH282843A (xx)
DE (1) DE804015C (xx)
FR (1) FR989487A (xx)
GB (1) GB663602A (xx)
NL (1) NL74624C (xx)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3081528A (en) * 1958-05-09 1963-03-19 Arthur W Hanna Method of manufacturing female electrical sockets
US3187298A (en) * 1961-05-25 1965-06-01 Amp Inc Pin receptacle for printed circuit board
US3543215A (en) * 1968-06-28 1970-11-24 Robert W Jones Pin sockets for electronic circuit devices
US4040177A (en) * 1974-03-01 1977-08-09 U.S. Philips Corporation Method of manufacturing an electrical contact
CN111545672A (zh) * 2020-05-15 2020-08-18 杨玲 Led灯引脚折弯机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1036350B (de) * 1953-02-11 1958-08-14 Johannes Petersen Gleitschutzsteckvorrichtung

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US340065A (en) * 1886-04-13 Carbon-holder for arc lamps
US969787A (en) * 1909-05-05 1910-09-13 Hart Mfg Co Plug-switch.
US1104720A (en) * 1913-03-06 1914-07-21 Benjamin B Turner Electrical connection.
DE443968C (de) * 1927-05-07 August Nagel Dr Steckervorrichtung
US1900099A (en) * 1929-05-25 1933-03-07 Westinghouse Lamp Co Method of securing contact pins in radiotube bases
US1973890A (en) * 1932-07-29 1934-09-18 Gen Motors Corp Machine to form twenty bubbles in a wheel hub shell for long spokes
US2007848A (en) * 1930-12-05 1935-07-09 Best Mfg Company Electrical contact apparatus
GB496636A (en) * 1938-05-04 1938-12-02 Guenther Wurdel Improvements in and relating to plug and socket connectors
US2339146A (en) * 1940-07-18 1944-01-11 Sonotone Corp Electrical connector
US2366269A (en) * 1945-01-02 Mechanism for forming sliders
US2415404A (en) * 1943-09-01 1947-02-11 Melvin D Baller Electrical connector

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US340065A (en) * 1886-04-13 Carbon-holder for arc lamps
DE443968C (de) * 1927-05-07 August Nagel Dr Steckervorrichtung
US2366269A (en) * 1945-01-02 Mechanism for forming sliders
US969787A (en) * 1909-05-05 1910-09-13 Hart Mfg Co Plug-switch.
US1104720A (en) * 1913-03-06 1914-07-21 Benjamin B Turner Electrical connection.
US1900099A (en) * 1929-05-25 1933-03-07 Westinghouse Lamp Co Method of securing contact pins in radiotube bases
US2007848A (en) * 1930-12-05 1935-07-09 Best Mfg Company Electrical contact apparatus
US1973890A (en) * 1932-07-29 1934-09-18 Gen Motors Corp Machine to form twenty bubbles in a wheel hub shell for long spokes
GB496636A (en) * 1938-05-04 1938-12-02 Guenther Wurdel Improvements in and relating to plug and socket connectors
US2339146A (en) * 1940-07-18 1944-01-11 Sonotone Corp Electrical connector
US2415404A (en) * 1943-09-01 1947-02-11 Melvin D Baller Electrical connector

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3081528A (en) * 1958-05-09 1963-03-19 Arthur W Hanna Method of manufacturing female electrical sockets
US3187298A (en) * 1961-05-25 1965-06-01 Amp Inc Pin receptacle for printed circuit board
US3543215A (en) * 1968-06-28 1970-11-24 Robert W Jones Pin sockets for electronic circuit devices
US4040177A (en) * 1974-03-01 1977-08-09 U.S. Philips Corporation Method of manufacturing an electrical contact
CN111545672A (zh) * 2020-05-15 2020-08-18 杨玲 Led灯引脚折弯机

Also Published As

Publication number Publication date
NL74624C (xx) 1954-05-15
CH282843A (de) 1952-05-15
GB663602A (en) 1951-12-27
FR989487A (fr) 1951-09-14
DE804015C (de) 1951-04-16
BE489610A (xx) 1949-06-30

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