EP0274503B1 - Weibliches kontaktelement, tragender streifen und herstellungsverfahren - Google Patents

Weibliches kontaktelement, tragender streifen und herstellungsverfahren Download PDF

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Publication number
EP0274503B1
EP0274503B1 EP87904536A EP87904536A EP0274503B1 EP 0274503 B1 EP0274503 B1 EP 0274503B1 EP 87904536 A EP87904536 A EP 87904536A EP 87904536 A EP87904536 A EP 87904536A EP 0274503 B1 EP0274503 B1 EP 0274503B1
Authority
EP
European Patent Office
Prior art keywords
strip
cheek pieces
integral
female contact
bridge
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
EP87904536A
Other languages
English (en)
French (fr)
Other versions
EP0274503A1 (de
Inventor
Eugène Lecourtois
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.)
Nicomatic
Original Assignee
Nicomatic
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 Nicomatic filed Critical Nicomatic
Priority to AT87904536T priority Critical patent/ATE80502T1/de
Publication of EP0274503A1 publication Critical patent/EP0274503A1/de
Application granted granted Critical
Publication of EP0274503B1 publication Critical patent/EP0274503B1/de
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
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/65—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal
    • H01R12/67—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal insulation penetrating terminals
    • 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
    • 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
    • H01R13/115—U-shaped sockets having inwardly bent legs, e.g. spade type
    • 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
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve

Definitions

  • the present invention relates generally to the field of connectors and in particular female contact elements, strips comprising such juxtaposed elements and the method of manufacturing such a strip.
  • Contact elements are already known, of the male or female type, formed from blanks cut from metal sheets.
  • the elements are often formed by rolling or folding after cutting and they are often presented juxtaposed to each other, along a carrier strip which supports them and which generally comprises pilot holes.
  • Document US-A-3,047,832 describes a contact element having a plug-in part which comprises two elastic cheeks placed one opposite the other and delimiting a housing for a male contact element, the internal faces cheeks being intended to be in contact with a male contact element, an external bridge placed at the end of the plug-in part which is opposite to the connection part, and integral with the two cheeks on one side of the housing delimited by the two cheeks, an internal bridge placed at the end of the plug-in part which is close to the connection part and secured to the two cheeks on the same side of said housing as the external bridge, and an elastic tongue having a part secured to the external trigger guard and a free end facing the internal trigger guard, the tongue deviating from said housing from its end secured to the external trigger guard towards its free end.
  • the pitch of the connector contacts had to be reduced more and more.
  • One step now commonly used is 2.54 mm.
  • Current techniques for cutting and bending metal strips do not allow the formation of juxtaposed contacts with enough material for a secure connection to be established.
  • the contact elements of the connectors corresponding to such small pitches are either formed in a strip portion whose width is greater than the pitch, or from several strips.
  • the invention relates to contacts which can be entirely formed with the metal contained in the part of metal strip corresponding to the pitch of the connectors. More specifically, all of the members of a female contact element are produced with a strip portion whose width is equal to the pitch of the contacts of the connectors.
  • the invention therefore relates not only to female contact elements but also to continuous strips comprising such juxtaposed elements and supported by a carrier strip advantageously comprising pilot holes.
  • the invention also relates to a method of manufacturing such a strip.
  • the invention relates to a female contact element in one piece, for connector, of the type which comprises a plug-in part and a connection part, both formed from the same metal sheet;
  • the connection part is flat and comprises at least one puncture of rectangular shape, having two teeth placed at opposite edges of the puncture and delimited by complementary edges, each tooth being arranged transversely to the connection part.
  • the element has two punctures in the connection part.
  • the teeth of the punctures have complementary V-shaped edges, one of the teeth having a point and the other two.
  • the point of the V is close to the base of the tooth so that the two points move away from each other near the base.
  • the plug-in part comprises two elastic cheeks placed one opposite the other and delimiting a housing for a male element of contact, the internal faces of the cheeks being intended to be in contact with a male contact element, an external bridge placed at the end of the insertion part which is opposite to the connection part, and integral with the two cheeks d one side of the housing delimited by the two cheeks, an internal bridge placed at the end of the plug-in part which is close to the connection part and secured to the two cheeks on the same side of said housing as the external bridge, and a elastic tongue having a part secured to the external trigger guard and a free end facing the internal trigger guard, the tongue deviating from said housing from its end secured to the external trigger guard towards its free end.
  • the cheeks have a curved shape convex towards the housing of the male element.
  • the invention also relates to a strip of female contact elements as indicated in the preceding paragraphs, the strip being formed in one piece from a metal sheet; according to the invention, the strip comprises a carrying strip having pilot holes, the external bridges of the female contact elements being integral with the carrying strip, the sum of the widths of the external bridge and the cheeks of an element at the location where they are integral with the external trigger guard being equal to the pitch of the female contact elements along the carrier strip.
  • the sum of the widths of the internal trigger guard and the cheeks at the place where they are integral with this trigger guard is equal to the pitch of the female contact elements.
  • the invention also relates to a method of manufacturing a strip of female contact elements as indicated in the preceding paragraphs, which comprises the execution, in a metallic strip, of the following operations: the separation of a part intended to form the carrier strip of parts intended to form cheeks, the separation of a part intended to form a tongue on all its sides except on the side of the external trigger guard, the separation of the female contact elements from each other by a shearing operation without loss of material, along the external edges of the cheeks, and, simultaneously with one of the preceding separations or independently of these, the formation of punctures in the connection part, the punctures being formed by shearing.
  • the use of shearing for the formation of the edges which delimit the width of each blank from which a female contact element is formed allows the optimal use of the material of the strip and the production of the contact elements with a not very small, for example 2.54 mm, without external material input.
  • Figures 1 and 2 show a female contact element according to the invention completely finished, apart from the separation of a carrier strip. More specifically, the carrier strip bears the reference 10 and it is connected to the female contact element which has a plug-in part 12 and a connection part 14.
  • the carrier strip 10 has pilot holes 16 allowing precise positioning, and a neck 18 to which the plug-in part 12 is connected.
  • the female contact element is completely separated by cutting at the level of the line 20.
  • the plug-in part 12 has two elastic cheeks 22. It can be seen in FIG. 1 that the central part of each cheek is slightly curved, its convexity being turned towards the inside of the contact element, that is to say say towards the housing provided for a male contact element.
  • the external and internal parts of the cheeks are connected by an external bridge 24 and an internal bridge 28. Between the two bridges, the cheeks are free.
  • a tongue 26 extends the trigger guard 24 and departs from the housing provided for a male contact element.
  • the connecting part 14 extends the internal bridge 28 and has two punctures 32. Each puncture is formed by shearing the material and forming two teeth 34 and 36, having edges of complementary shape, the tooth 34 forming a point and the tooth 36 two points. Although two punctures have been shown, the connecting part 14 may include any number. It is however important to note that the teeth 34 and 36 of the punctures are oriented transversely to the length of the female contact element. This arrangement is important according to the invention because it allows folding or crimping the teeth 34 and 36, when they have penetrated through a flexible printed circuit, during an operation which allows the bending of all the teeth of several female contact elements placed side by side. If teeth 34 and 36 were placed on the other two sides of the punctures, they should be folded back separately for each contact element.
  • the two points tend to move away from one another.
  • the pointed bottom of the groove separating the two points is sufficiently close to the base of the tooth so that this spacing of the two points pushes their outer edge in contact with the flexible circuit and thus improves the quality of the electrical contact obtained.
  • FIG. 4 represents a metal strip having already undergone a few operations, during its manufacture according to the method of the invention.
  • the carrier strip 10 has already been produced, with the piloting holes 16. It is noted, however, that holes 38 have been formed, with removal of material, in the part between the adjacent parts for fixing adjacent female elements. There is also a cutout 40 which delimits the contour of the tongue 26 and on the other hand which releases an edge of the cheeks 22, over the appropriate distance. Finally, material has also been removed in the zone 42 between the connecting parts of the two neighboring elements.
  • the blanks of the elements according to the invention are separated along the line 44 by shearing, that is to say without removal of material, by simple separation.
  • This characteristic is important because it allows the female contact elements to be produced with a very reduced pitch, for example of 2.54 mm.
  • the cheeks In an embodiment corresponding to female contact elements having a pitch of 2.54 mm, the cheeks have a width of 0.7 mm and the connection parts have a width of 1.8 mm.
  • the material is a bronze or brass sheet, of a type well known in the art, for example having a thickness of 0.2 mm.
  • the material When the connection part has punctures, the material must be rigid enough for the tips to perforate the flexible circuit or other substrate which must be crossed. The angles of the tips must also be as sharp as possible.
  • Figure 5 is a perspective of the end of the molded element of a connector intended to accommodate female contact elements, one element per channel 46 of the molded element.
  • the pitch of the channels 46 is 2.54 mm.
  • the body 48 ends, on the side of the connection parts, by two continuous cheeks 50 which surround the connection parts 14, the points of which have passed through a flexible sheet of printed circuit. Note also the small openings 52 formed in front of each channel 46 and intended to block the tongue 26 of the corresponding contact.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Multi-Conductor Connections (AREA)
  • Manufacture Of Switches (AREA)

Claims (9)

  1. Innenkontaktelement aus einem einzigen Teil für einen Stecker des Typs, welcher einen Steckteil (12) und einen Verbindungsteil (14) aufweist, welche beide ausgehend von dem selben metallischen Blatt gebildet werden

    dadurch gekennzeichnet, daß

    der Verbindungsteil (14) flach ist und zumindest einen rechteckförmigen Kragen (32) aufweist mit zwei an gegenüberliegenden Rändern des Kragens gelegenen und durch komplementäre Ränder abgegrenzten Zähnen (34, 36), wobei jeder Zahn transversal zu dem Verbindungsteil angeordnet ist.
  2. Element nach Anspruch 1, dadurch gekennzeichnet, daß es zwei Krägen in dem Verbindungsteil aufweist.
  3. Element nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß die Zähne (34, 36) der Krägen komplementäre V-förmige Ränder haben, wobei der eine Zahn eine und der andere zwei Spitzen hat.
  4. Element nach Anspruch 3, dadurch gekennzeichnet, daß die Spitze des V nahe an der Basis des Zahns (36) ist, damit sich die zwei Spitzen voneinander in der Nähe der Basis entfernen.
  5. Element nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Steckteil (12) aufweist:
    - zwei elastische Backen (22), welche einander gegenüberliegend angeordnet sind, und ein Gehäuse eines Außenkontaktelements begrenzen, wobei die Innenflächen der Backen dazu bestimmt sind, mit einem Außenkontaktelement im Kontakt zu sein,
    - eine Außenbrücke (24), welche sich am Ende des dem Verbindungsteil gegenüberliegenden Steckteils befindet, und mit den beiden Backen einer Seite des durch die beiden Backen begrenzten Gehäuses einstückig ist,
    - eine Innenbrücke (28), welche sich am Ende des nahe an dem Verbindungsteil gelegenen Steckteils befindet, und mit den beiden Backen der gleichen Seite des Gehäuses einstückig ist, wie die Außenbrücke, und
    - eine elastische Zunge (26), welche einen mit der Außenbrücke einstückigen Teil und ein gegen die Innenbrücke gedrehtes freies Ende hat, wobei sich die Zunge von dem Gehäuse seines mit der Außenbrücke einstückigen Endes zu dem freien Ende hin erstreckt.
  6. Element nach Anspruch 5, dadurch gekennzeichnet, daß die Backen (22) eine konvex nach innen gekrümmte Form in Richtung des Gehäuses des Außenelements haben.
  7. Band aus Innenkontaktelementen nach einem der Ansprüche 5 und 6, wobei das Band aus einem einzigen Stück ausgehend von einem metallischen Blatt gebildet ist, dadurch gekennzeichnet, daß es ein Trägerband (10) mit Einstellöchern (16) aufweist, wobei die Außenbrücken (24) der Innenkontaktelemente einstückig mit dem Trägerband sind, wobei die Summe der Breite der Außenbrücke (24) und der Backen eines Elements am Ort, wo sie mit der Außenbrücke einstückig sind, gleich der Schrittweite der Innenkontaktelemente entlang des Trägerbandes ist.
  8. Band nach Anspruch 7, dadurch gekennzeichnet, daß die Summe der Breiten der Innenbrücke (28) und der Backen (22) am Ort, wo sie mit dieser Brücke einstückig sind, gleich der Schrittweite der Innenkontaktelemente ist.
  9. Verfahren zur Herstellung eines Bandes aus Innenkontaktelementen nach einem der Ansprüche 7 und 8, dadurch gekennzeichnet, daß es die folgenden Schritte in einem metallischen Band aufweist:
    - die Trennung eines Teils, welcher bestimmt ist, das Trägerband zu bilden, von Teilen welche bestimmt sind, die Backen (22) zu bilden,
    - die Trennung eines Teils, welches bestimmt ist eine Zunge (26) an allen seinen Seiten außer der Seite der Außenbrücke (24) zu bilden,
    - die Trennung der Innenkontaktelemente voneinander durch einen Schervorgang ohne Verlust von Material entlang der Außenränder, (44) der Backen, und
    - gleichzeitig mit einer der vorhergehenden Trennungen oder unabhängig von ihnen die Ausbildung von Krägen (3) in dem Verbindungsteil, wobei die Krägen durch einen Schervorgang gebildet werden.
EP87904536A 1986-07-11 1987-07-09 Weibliches kontaktelement, tragender streifen und herstellungsverfahren Expired - Lifetime EP0274503B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87904536T ATE80502T1 (de) 1986-07-11 1987-07-09 Weibliches kontaktelement, tragender streifen und herstellungsverfahren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8610183 1986-07-11
FR8610183A FR2601517B1 (fr) 1986-07-11 1986-07-11 Element femelle de contact, bande formee de tels elements et son procede de fabrication

Publications (2)

Publication Number Publication Date
EP0274503A1 EP0274503A1 (de) 1988-07-20
EP0274503B1 true EP0274503B1 (de) 1992-09-09

Family

ID=9337378

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87904536A Expired - Lifetime EP0274503B1 (de) 1986-07-11 1987-07-09 Weibliches kontaktelement, tragender streifen und herstellungsverfahren

Country Status (7)

Country Link
US (1) US4806121A (de)
EP (1) EP0274503B1 (de)
JP (1) JPH01500311A (de)
AT (1) ATE80502T1 (de)
DE (1) DE3781661T2 (de)
FR (1) FR2601517B1 (de)
WO (1) WO1988000762A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5389549A (en) * 1987-05-29 1995-02-14 Toa Medical Electronics Co., Ltd. Method for classifying leukocytes and a reagent used therefor
NL9000918A (nl) * 1990-04-18 1991-11-18 Du Pont Nederland Verbindingselement.
FR2777707B1 (fr) * 1998-04-17 2000-06-16 Nicomatic Bande d'elements de contact a cadre, son procede de fabrication et son application a des ensembles de contacts

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB938402A (en) * 1959-09-11 1963-10-02 Sealectro Corp Improvements in or relating to electrical socket contacts
NO126056B (de) * 1969-04-29 1972-12-11 Amp Inc
US3806859A (en) * 1973-01-30 1974-04-23 Sealectro Corp Contacts for pin terminals
JPS5349502Y2 (de) * 1973-04-05 1978-11-28
AU6777474A (en) * 1973-04-16 1975-10-16 Utilux Pty Ltd Femal receptacle connector
JPS5119582A (ja) * 1974-08-08 1976-02-16 Tokyo Shibaura Electric Co Uzudenryugatatanshosochi
DE2644612C3 (de) * 1976-10-02 1986-05-07 Harting Elektronik Gmbh, 4992 Espelkamp Aus Blechmaterial gebogenes Kontaktelement für einen mehrpoligen elektrischen Steckverbinder
US4106836A (en) * 1977-04-14 1978-08-15 Amp Incorporated Crimp barrel for thick, flat, flexible cable
US4211466A (en) * 1978-11-21 1980-07-08 Amp Incorporated Crimped electrical connections for conductors on thin substrates
US4263474A (en) * 1979-05-30 1981-04-21 Amp Incorporated Under carpet cable connector
JPS5766885U (de) * 1980-10-06 1982-04-21

Also Published As

Publication number Publication date
FR2601517A1 (fr) 1988-01-15
EP0274503A1 (de) 1988-07-20
ATE80502T1 (de) 1992-09-15
US4806121A (en) 1989-02-21
WO1988000762A1 (fr) 1988-01-28
DE3781661D1 (de) 1992-10-15
FR2601517B1 (fr) 1990-02-09
JPH01500311A (ja) 1989-02-02
DE3781661T2 (de) 1993-04-22

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