EP0114976A2 - Broche de contact et procédé ainsi que dispositif pour sa fabrication - Google Patents

Broche de contact et procédé ainsi que dispositif pour sa fabrication Download PDF

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Publication number
EP0114976A2
EP0114976A2 EP83111986A EP83111986A EP0114976A2 EP 0114976 A2 EP0114976 A2 EP 0114976A2 EP 83111986 A EP83111986 A EP 83111986A EP 83111986 A EP83111986 A EP 83111986A EP 0114976 A2 EP0114976 A2 EP 0114976A2
Authority
EP
European Patent Office
Prior art keywords
side surfaces
contour
curved
stamping
embossing
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.)
Granted
Application number
EP83111986A
Other languages
German (de)
English (en)
Other versions
EP0114976B1 (fr
EP0114976A3 (en
Inventor
Rudi Kolb
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.)
Unimet GmbH
Original Assignee
Unimet GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6181935&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0114976(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Unimet GmbH filed Critical Unimet GmbH
Priority to AT83111986T priority Critical patent/ATE35597T1/de
Publication of EP0114976A2 publication Critical patent/EP0114976A2/fr
Publication of EP0114976A3 publication Critical patent/EP0114976A3/de
Application granted granted Critical
Publication of EP0114976B1 publication Critical patent/EP0114976B1/fr
Expired 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
    • H01R13/04—Pins or blades for co-operation with sockets
    • 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

  • the invention relates to a contact pin with a cylindrical shaft and tapering towards the end, which is composed of at least two side surfaces and two curved top and bottom surfaces and of which the two side surfaces are arranged at right angles to an axial plane of the pin and in mirror image to the axial plane perpendicular thereto are.
  • Such a contact pin is known from DE patent 1,589,820.
  • the two side surfaces are flat and meet at a front edge in a wedge shape.
  • the top surface is conically compressed during the punching process and the bottom surface remains essentially cylindrical, although the front edge should be rounded off somewhat.
  • this desired rounding can be achieved during the one-step stamping and embossing process.
  • the resulting sharp front edge between the side surfaces, the peripheral edge between the conical top surface and the shaft circumference, is disadvantageous sharp-edged transition between the wedge-shaped side surfaces and the circumference of the shaft in the middle axial section as well as the probably unavoidable front edge between the cylindrical base surface and the side surfaces, since the desired automatic rounding, if at all, can then only be carried out to a very small extent. Since the contact pins are provided with a gold plating, damage in the area of the sharp edges cannot be avoided if the contact pins are operated frequently, so that contact difficulties can arise.
  • the object of the invention is to design a contact pin in such a way that the number of edges at the tapered pin end is at least reduced in order to create a pin tip that is as free of edges as possible from the rotating part by simple stamping and embossing processes. This object is achieved by the features of the characterizing part of claim 1.
  • the new contact pin tip is designed like a turned part and largely avoids edge transitions between the individual surfaces, especially in the area of the shaft circumference. A thin gold plating is therefore well protected against scraping.
  • the method of making a contact pin is characterized by a first stamping process with which the curved side surfaces are formed and by a subsequent stamping process with stamping tools which move in the stamping direction and which form the top and bottom surfaces. If the embossing surfaces of the embossing tools are shaped in such a way that they run approximately parallel to their direction of movement in the parting plane of the embossing tools, then transition curves can be provided in the embossing surfaces which cover the transition zones in the region of the otherwise occurring edges between the top and bottom surfaces on the one hand and the side surfaces on the other hand round off, so that a completely edge-free contact pin tip can be achieved in only two work steps.
  • the contact pin 10 has a cylindrical shaft 12 with a rear fastening end 14.
  • the front pin tip 16 has two single-curved side faces 22 which are not curved in the circumferential direction of the shaft 12, but rather only in an axial plane.
  • the peripheral contours of the side surfaces 22 are therefore the same in parallel planes to the axial plane on which the side surfaces 22 are perpendicular.
  • the two side surfaces 22 meet at the front end of the pin and merge continuously into one another without edges.
  • contour of these two contiguous side surfaces 22 thus forms a semi-oval or a semi-ellipse, because the two side surfaces 22 are arranged symmetrically to that axial plane 3-3 which is perpendicular to the above-mentioned axial plane 2-2, on which the side surfaces 22 are perpendicular .
  • the two side surfaces 22 run tangentially into the rectilinear surface lines of the shaft 12 a.
  • a cover surface 18 adjoins the two side surfaces 22 at the top and a bottom surface 20 at the bottom.
  • the top and bottom surfaces 18, 20 are doubly curved, both in the axial direction and in the circumferential direction. In this way, a tapering similar to a rotating part to the front pin end is achieved up to the height of the side faces 22, which is the smallest at the pin front end.
  • the top and bottom surfaces 18, 20 run tangentially and thus edge-free into the corresponding surface lines of the shaft 12 in any axial section.
  • the top surface 18 and the bottom surface 20 are shaped and arranged in mirror image to the axial plane 2-2.
  • the side surfaces 22 form edges 24 with the top surface 18 and edges 26 with the bottom surface 20, which, however, never reach the circumferential contour of the shaft 12.
  • These edges 24, 26 extend predominantly in the longitudinal direction of the pin and are therefore comparatively harmless, especially since the angle which the adjacent surfaces form at these edges 24, 26 is very obtuse.
  • FIG. 6 shows a punching tool 34 which has a semi-oval or semi-elliptical cutting edge 28 with which elements are punched away from the front end of the cylindrical shaft 12, so that the semi-elliptical side surface contour 22 is formed.
  • the top and bottom surfaces 18, 20 of the pin 10 are then formed by means of two stamping tools 36, 38. These two stamping tools 36, 38 have mold cavities 30, 32, in which double-curved stamping surfaces 40, 42 are formed.
  • the embossing tools 36, 38 are moved towards one another in the same direction as the punching tool 34 with the pin 10 held in place.
  • the contact pin has a tip forming shown in Figures 1 to. 5
  • the mold cavities 40, 42 have semicircular cross sections with a continuously decreasing diameter in the axial direction towards the inner end.

Landscapes

  • Manufacturing Of Electrical Connectors (AREA)
  • Manufacture Of Switches (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Forging (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Eyeglasses (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP83111986A 1982-12-28 1983-11-30 Broche de contact et procédé ainsi que dispositif pour sa fabrication Expired EP0114976B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83111986T ATE35597T1 (de) 1982-12-28 1983-11-30 Kontaktstift und verfahren sowie vorrichtung zu dessen herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3248256 1982-12-28
DE3248256A DE3248256C3 (de) 1982-12-28 1982-12-28 Kontaktstift

Publications (3)

Publication Number Publication Date
EP0114976A2 true EP0114976A2 (fr) 1984-08-08
EP0114976A3 EP0114976A3 (en) 1987-01-21
EP0114976B1 EP0114976B1 (fr) 1988-07-06

Family

ID=6181935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83111986A Expired EP0114976B1 (fr) 1982-12-28 1983-11-30 Broche de contact et procédé ainsi que dispositif pour sa fabrication

Country Status (4)

Country Link
EP (1) EP0114976B1 (fr)
JP (1) JPS59123172A (fr)
AT (1) ATE35597T1 (fr)
DE (2) DE3248256C3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210382092A1 (en) * 2020-06-09 2021-12-09 Wieland-Werke Ag Method for producing a device for measuring current intensities and device for measuring current intensities

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0515731Y2 (fr) * 1987-11-02 1993-04-26
JPH0515732Y2 (fr) * 1987-11-26 1993-04-26
DE4114470C1 (en) * 1991-05-03 1992-07-02 Harting Elektronik Gmbh, 4992 Espelkamp, De Contact tip mfg. on cylindrical contact pin - embossing tip at front pin end by counteracting embossing tools with corresp. recesses
DE4323891A1 (de) * 1993-07-16 1995-01-19 Abb Patent Gmbh Aufnahmebehälter für wenigstens eine Batterie
DE19720196C2 (de) * 1997-05-14 2000-03-23 Trw Automotive Electron & Comp Messwerk
DE102013213497A1 (de) * 2013-05-24 2014-11-27 Continental Teves Ag & Co. Ohg Verfahren zur Fertigung eines Kontaktelements, Kontaktelement sowie dessen Verwendung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1589820A1 (de) * 1966-04-18 1970-05-14 Gen Electric Kontaktstift und Vorrichtung zu seiner Herstellung
US4057315A (en) * 1976-08-02 1977-11-08 E. I. Du Pont De Nemours And Company Circuit board pin

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB278359A (en) * 1926-10-01 1927-12-22 Deltavis Co Process of manufacturing of a plug for electrical connections and plugs manufactured according to this process
US3071844A (en) * 1959-08-05 1963-01-08 Malco Mfg Co Method of making a terminal
CA1097417A (fr) * 1978-07-31 1981-03-10 Raymond Bernier Connecteurs electriques comportant une pluralite de fiches cooperant avec des douilles
DE3112245C2 (de) * 1981-03-27 1984-10-31 Siemens AG, 1000 Berlin und 8000 München Verfahren zum Anspitzen oder Nachspitzen von Kontaktstiften

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1589820A1 (de) * 1966-04-18 1970-05-14 Gen Electric Kontaktstift und Vorrichtung zu seiner Herstellung
US4057315A (en) * 1976-08-02 1977-11-08 E. I. Du Pont De Nemours And Company Circuit board pin

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210382092A1 (en) * 2020-06-09 2021-12-09 Wieland-Werke Ag Method for producing a device for measuring current intensities and device for measuring current intensities
US11821922B2 (en) * 2020-06-09 2023-11-21 Wieland-Werke Ag Method for producing a device for measuring current intensities and device for measuring current intensities

Also Published As

Publication number Publication date
EP0114976B1 (fr) 1988-07-06
DE3248256C3 (de) 1996-01-18
JPS59123172A (ja) 1984-07-16
EP0114976A3 (en) 1987-01-21
DE3248256C2 (fr) 1991-02-28
ATE35597T1 (de) 1988-07-15
JPH0465503B2 (fr) 1992-10-20
DE3248256A1 (de) 1984-06-28
DE3377321D1 (en) 1988-08-11

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