EP0274503A1 - Socket contact element, strip provided thereof and method of manufacturing. - Google Patents

Socket contact element, strip provided thereof and method of manufacturing.

Info

Publication number
EP0274503A1
EP0274503A1 EP87904536A EP87904536A EP0274503A1 EP 0274503 A1 EP0274503 A1 EP 0274503A1 EP 87904536 A EP87904536 A EP 87904536A EP 87904536 A EP87904536 A EP 87904536A EP 0274503 A1 EP0274503 A1 EP 0274503A1
Authority
EP
European Patent Office
Prior art keywords
cheeks
trigger guard
strip
female contact
contact elements
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
EP87904536A
Other languages
German (de)
French (fr)
Other versions
EP0274503B1 (en
Inventor
Eugene 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
Individual
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 Individual filed Critical Individual
Priority to AT87904536T priority Critical patent/ATE80502T1/en
Publication of EP0274503A1 publication Critical patent/EP0274503A1/en
Application granted granted Critical
Publication of EP0274503B1 publication Critical patent/EP0274503B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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 elements
  • S 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
  • the pitch of the connector contacts had to be reduced more and more.
  • a pitch 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. Consequently, 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 / N 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 connecting portion, both formed from a metal sheet;
  • the plug-in part comprises two elastic cheeks placed one opposite the other and delimiting a housing for a male contact element, the internal faces of the cheeks being intended to be in contact with a male contact element, a -external bridge placed at the extremity of the plug-in part which is opposite to the connection part and secured to the two cheeks on one side of the housing delimited by the two cheeks, an internal trigger guard 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 the housing as the external trigger guard, 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 cheeks have a curved shape, convex towards the housing of the male element.
  • 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. It is advantageous for the connection part to have two punctures. These preferably have complementary V-shaped shapes, so that one of the teeth has a point and the other two points.
  • the invention also relates to a strip of female contact elements of the aforementioned type, formed in one piece from a metal sheet; the strip comprises a carrying strip having pilot holes, the external trigger guard of the female elements of cont.act being secured to the supporting strip, the sum of the widths of the external trigger guard and the cheeks, at the place where they are secured to the external trigger guard, being equal to the pitch of the female contact elements along the carrier strip. It is also advantageous that 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 along the strip.
  • the connection part may have a width less than or equal to the pitch of the female elements.
  • the invention also relates to a method for manufacturing such a strip, from a metal strip, comprising - the separation of a part intended to form the carrier strip from the parts intended to form cheeks, the separation of the part intended to form the tongue on all its sides except on the side of the external trigger guard, and - 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. It is also advantageous that the punctures of the connecting parts, when they are pumped out, are also formed by shearing.
  • FIG. 1 is a plan view of a female contact element according to the invention, completed, apart from its separation from a carrier strip;
  • Figure 2 is a side elevation in partial section along line 2-2 of Figure 1;
  • Figure 3 is a partial perspective reselling ⁇ feeling a puncture formed in a connection portion of a female contact element according to the invention;
  • 4 shows a metal strip during the manufacture of the contact elements shown in Figures 1 to 3;
  • FIG. 5 is a perspective of a block of a connector intended to contain the female contact elements of FIGS. 1 to 3.
  • 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 piloting 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 comprises 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 - 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 folding 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 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 separation 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.
  • 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.
  • 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.

Abstract

PCT No. PCT/FR87/00276 Sec. 371 Date Mar. 9, 1988 Sec. 102(e) Date Mar. 9, 1988 PCT Filed Jul. 9, 1987 PCT Pub. No. WO88/00762 PCT Pub. Date Jan. 28, 1988.Contact elements placed side by side along a carrier strip (10) and comprising a plugging part (12) provided with elastic flanges (22) intended to clamp a plug contact element. A backwards-projecting tongue (26) locks the contact element in a connector body. The junction part (14) is provided with plunged bosses (32) which form teeth (34, 36) intended to pass through flexible printed circuits. Application in the manufacturing of connectors for flexible printed circuits.

Description

Elément femelle de contact/ bande le cαπportant et procédé de fabrication Female contact element / strip carrying it and manufacturing process
La présente invention concerne de façon générale le domaine de la connectique et en particulier des éléments femelles de contact, des bandes comprenant de tels élémentsThe present invention relates generally to the field of connectors and in particular female contact elements, strips comprising such elements
•^ juxtaposés, et le procédé de fabrication d'une telle bande.• ^ juxtaposed, and the method of manufacturing such a strip.
S On connaît déjà des éléments de contact, de type mâle ou femelle, formés à partir de flans découpés dans des feuilles métalliques. Les éléments sont souvent formés par roulage ou pliage après découpe et ils sont souvent présentés juxtaposés les uns aux autres, le long d'uneS 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
10 bande, porteuse qui les supporte et qui comporte en général des- trous- de pilotage.10 strip, carrier which supports them and which generally comprises pilot holes.
Etant donné les tendances constantes à la miniatu¬ risation, les pas des contacts des connecteurs ont dû être réduits de plus en plus. Un pas maintenant couramment 15 utilisé est égal à 2,54 mm. Les techniques actuelles de découpe et de pliage de bandes métalliques ne permettent pas la formation de contacts juxtaposés avec suffisamment de matière pour qu'une connexion sûre soit établie. En ' conséquence, les éléments de contact des connecteurs corres- 20 pondant à des pas aussi petits sont soit formés dans une partie de bande dont la largeur est supérieure au pas, soit à partir de plusieurs bandes.Given the constant trends in miniatu¬ rization, the pitch of the connector contacts had to be reduced more and more. A pitch 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. Consequently, 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.
L'invention concerne des contacts qui peuvent être entièrement formés avec le métal contenu dans la 25 partie de bande métallique correspondant au pas des connec¬ teurs. Plus précisément, la totalité des organes d'un élément femelle de contact est réalisée avec une partie de bande dont la largeur est égale au pas des contacts des connecteurs. 30 L'invention concerne donc non seulement des éléments femelles de contact mais encore des bandes continues /N comprenant de tels éléments juxtaposés et supportés par une bande porteuse comprenant avantageusement des trous de pilotage. L'invention concerne aussi un procédé de 35 fabrication d'une telle bande.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 / N 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.
Plus précisément, l'invention concerne un élément femelle de contact en une seule pièce pour connecteur, du type qui comprend une partie d'enfichage' et une partie de raccordement, toutes deux formées à partir d'une feuille métallique ; la partie d'enfichage comporte deux joues élastiques placées l'une en face de l'autre et délimitant un logement pour un élément mâle de contact, les faces internes des joues étant destinées à être au contact d'un élément mâle de contact, un -pontet externe placé à l'extré¬ mité de la partie d'enfichage qui est opposée à la partie de raccordement et solidaire des deux joues d'un côté du logement délimité par les deux joues, un pontet interne placé à l'extrémité de la partie d'enfichage qui est proche de la partie de raccordement et solidaire des deux joues du même côté du logement que le pontet externe, et une languette élastique ayant une partie solidaire du pontet externe et une extrémité libre tournée vers le pontet inter¬ ne, la languette s'écartant dudit logement de son extrémité solidaire du pontet externe vers son extrémité libre.More specifically, the invention relates to a female contact element in one piece for connector, of the type which comprises a plug-in part 'and a connecting portion, both formed from a metal sheet; the plug-in part comprises two elastic cheeks placed one opposite the other and delimiting a housing for a male contact element, the internal faces of the cheeks being intended to be in contact with a male contact element, a -external bridge placed at the extremity of the plug-in part which is opposite to the connection part and secured to the two cheeks on one side of the housing delimited by the two cheeks, an internal trigger guard 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 the housing as the external trigger guard, 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.
Il est avantageux que les joues aient une forme courbée, convexe vers le logement de l'élément mâle. Dans un mode de réalisation avantageux, la partie-de raccordement- est plate et comporte au moins un crevé de forme rectangu¬ laire, ayant deux dents placées à des bords opposés du crevé et délimitées par des bords complémentaires, chaque dent étant disposée transversalement à la partie de raccor- dément. Il est avantageux que la partie de raccordement comporte deux crevés . Ceux-ci ont de préférence des formes complémentaires en V, si bien que l'une des dents a une pointe et l'autre deux pointes.It is advantageous that the cheeks have a curved shape, convex towards the housing of the male element. In an advantageous embodiment, 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. It is advantageous for the connection part to have two punctures. These preferably have complementary V-shaped shapes, so that one of the teeth has a point and the other two points.
L'invention concerne aussi une bande d'éléments femelles de contact du type précité, formée en une seule pièce à partir d'une feuille métallique ; la bande comporte une bande porteuse ayant des trous "de pilotage, le pontet externe des éléments femelles de cont.act étant solidaire de la bande porteuse, la somme des largeurs du pontet externe et des joues, à l'endroit où elles sont solidaires du pontet externe, étant égale au pas des éléments femelles de contact le long de la bande porteuse. Il est aussi avantageux que la somme des largeurs du pontet interne et des joues a l'endroit où elles sont solidaires de ce pontet, soit égale au pas des éléments femelles de contact le long de la bande. La partie de raccordement peut avoir une largeur inférieure ou égale au pas des éléments femelles.The invention also relates to a strip of female contact elements of the aforementioned type, formed in one piece from a metal sheet; the strip comprises a carrying strip having pilot holes, the external trigger guard of the female elements of cont.act being secured to the supporting strip, the sum of the widths of the external trigger guard and the cheeks, at the place where they are secured to the external trigger guard, being equal to the pitch of the female contact elements along the carrier strip. It is also advantageous that 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 along the strip. The connection part may have a width less than or equal to the pitch of the female elements.
L'invention concerne aussi un procédé de fabrica¬ tion d'une telle bande, à partir d'une bande métallique, comportant - la séparation d'une partie destinée à former la bande porteuse des parties destinées à former des joues, la séparation de la partie destinée à former la languette sur tous ses côtés sauf du côté du pontet externe, et - la séparation des éléments femelles de contact les uns des autres par une opération de cisaillage sans perte de matière, le long des bords externes des joues. Il est aussi avantageux que les crevés des parties de raccordement, lorsqu'elles en pomportent, soient aussi formés par cisaillage.The invention also relates to a method for manufacturing such a strip, from a metal strip, comprising - the separation of a part intended to form the carrier strip from the parts intended to form cheeks, the separation of the part intended to form the tongue on all its sides except on the side of the external trigger guard, and - 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. It is also advantageous that the punctures of the connecting parts, when they are pumped out, are also formed by shearing.
Ainsi, l'utilisation du cisaillage pour la formation des bords qui délimitent la largeur de chaque flan à partir duquel est formé un élément femelle de contact, permet l'utilisation optimale de la matière de la bande et la réalisation des éléments de contact avec un pas très réduit, par exemple de 2,54 mm, sans apport externe de matière. D'autres caractéristiques et avantages de l'inven¬ tion ressortiront mieux de la description qui va suivre, faite en référence au dessin annexé sur lequel : la figure 1 est une vue en plan d'un élément femelle de contact selon l'invention, terminé, mis à part sa séparation d'une bande porteuse ; la figure 2 est une élévation latérale en coupe partielle suivant la ligne 2-2 de la figure 1 ; la figure 3 est une perspective partielle repré¬ sentant un crevé formé dans une partie de raccordement d'un élément femelle de contact selon l'invention ; la figure 4 représente une bande métallique au cours de la fabrication des éléments de contact représen¬ tés sur les figures 1 à 3 ; et la figure 5 est une perspective d'un bloc d'un connecteur destiné à contenir les éléments femelles de contact des figures 1 à 3.Thus, 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 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. Other characteristics and advantages of the invention will emerge more clearly from the description which follows, given with reference to the appended drawing in which: FIG. 1 is a plan view of a female contact element according to the invention, completed, apart from its separation from a carrier strip; Figure 2 is a side elevation in partial section along line 2-2 of Figure 1; Figure 3 is a partial perspective repré¬ feeling a puncture formed in a connection portion of a female contact element according to the invention; 4 shows a metal strip during the manufacture of the contact elements shown in Figures 1 to 3; and FIG. 5 is a perspective of a block of a connector intended to contain the female contact elements of FIGS. 1 to 3.
Les figures 1 et 2 représentent un élément femelle de contact selon l'invention entièrement terminé, mis à part la séparation d'une bande porteuse. Plus précisément, la bande porteuse porte la référence 10 et elle est reliée à l'élément femelle de contact qui comporte une partie 12 d'enfichage et une partie 14 de raccordement. La bande porteuse 10 a des trous 16 de pilotage permettant le posi¬ tionnement précis, et un col 18 auquel est reliée la partie d'enfichage 12. L'élément femelle de contact est totalement séparé par découpe au niveau du trait 20.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 piloting 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.
La partie d'enfichage 12 comporte deux joues élas¬ tiques 22. On note sur la figure 1 que la partie centrale de chaque joue est légèrement bombée, sa convexité étant tournée vers l'intérieur de l'élément de contact, c'est-- dire vers le logement prévu pour un élément mâle de contact. Les parties externes, et internes des joues sont reliées par un pontet externe 24 et un pontet interne 28. Entre les deux pontets, les joues sont libres. Une languette 26 prolonge le pontet 24 et s'écarte du logement prévu pour un élément mâle de contact.The plug-in part 12 comprises 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 - 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.
La partie 14 de raccordement prolonge le pontet interne 28 et a deux crevés 32. Chaque crevé est formé par cisaillage de la matière et formation de deux dents 34 et 36, ayant des bords de forme complémentaire, la dent 34 formant une pointe et la dent 36 deux pointes. Bien qu'on ait représenté deux crevés , la partie 14 de raccordement peut en comporter un nombre quelconque. Il est cependant important de noter que les dents 34 et 36 des crevés sont orientées transversalement à la longueur de l'élément femelle de contact. Cette disposition est importante selon l'invention car elle permet le pliage ou sertissage des dents 34 et 36, lorsqu'elles ont pénétré à travers un circuit imprimé souple, au cours d'une opération qui permet le pliage de toutes les dents de plusieurs éléments femelles de contact placés côte à côte. Si les dents 34 et 36 étaient placées sur les deux autres côtés des crevés, elles devraient être repliées séparément pour chaque élément de contact.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 folding 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 separately for each contact element.
Lorsque la dent 36 traverse un circuit souple, les deux pointes ont tendance, à s'écarter l'une de l'autre. Selon une caractéristique avantageuse de l'invention, le fond pointu de la gorge séparant les deux pointes est suffisamment p σche de la base de la dent pour que cet écartement des deux pointes repousse leur bord externe au contact du circuit souple et améliore ainsi la qualité du contact électrique obtenu.When the tooth 36 crosses a flexible circuit, the two points tend to move away from one another. According to an advantageous characteristic of the invention, the pointed bottom of the groove separating the two points is sufficiently close to the base of the tooth so that this separation of the two points pushes their outer edge in contact with the flexible circuit and thus improves the quality of the electrical contact obtained.
La figure 4 représente une bande métallique ayant déjà subi quelques opérations, au cours de sa fabrication selon le procédé de l'invention. On note que la bande porteuse 10 a déjà été réalisée, avec les trous 16 de pilotage. On note cependant que des trous 38 ont été formés, . avec enlèvement de matière, dans la partie comprise entre les parties adjacentes de fixation d'éléments femelles adjacents. On note aussi une découpe 40 qui délimite le contour de la languette 26 et d'autre part qui dégage un bord des joues 22, sur la distance convenable. Enfin, de la matière a aussi été enlevée dans la zone 42 comprise entre les parties de raccordement des deux éléments voisins.FIG. 4 represents a metal strip having already undergone a few operations, during its manufacture according to the method of the invention. Note that the carrier strip 10 has already been produced, with the piloting holes 16. However, it should be noted 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.
Selon une caractéristique essentielle du procédé de l'invention, les flans des éléments selon l'invention sont séparés le long de la ligne 44 par cisaillage, c'est-à-dire sans enlèvement de matière, par simple séparation. Cette caractéristique est importante car elle permet la réalisation des éléments femelles de contact avec un pas très réduit, par exemple de 2,54 mm. Dans un mode de réalisation correspondant à des éléments femelles de contact ayant un pas de 2,54 mm, les joues ont une largeur de 0,7 mm et les parties de raccordement ont une largeur de 1,8 mm. Le matériau est une feuille de bronze ou de laiton, d'un type bien connu dans la technique, ayant par exemple une épaisseur de 0,2 mm.According to an essential characteristic of the process of the invention, 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. 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.
Lorsque la partie de raccordement comporte des crevés, le matériau doit être suffisamment rigide pour que les pointes perforent le circuit souple ou autre substrat qui doit être traversé. Il faut aussi que les angles des pointes soient vifs dans la mesure du possible.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.
La figure 5 est une perspective de l'extrémité de l'élément moulé d'un connecteur destiné à loger des éléments femelles de contact, à raison d'un élément par canal 46 de l'élément moulé. Le pas des canaux 46 est de 2,54 mm. Le corps 48 se termine, du côté des parties de raccordement, par deux joues continues 50 qui entourent les parties de raccordement 14 dont les pointes ont traversé une feuille souple de circuit imprimé. On note en outre les petites ouvertures 52 formées en face de chaque canal 46 et destinées à bloquer la languette 26 du contact correspondant. 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.

Claims

REVENDICATIONS 1. Elément femelle de contact en une seule pièce, pour connecteur, du type qui comprend une partie d'enfichage (12) et une partie de raccordement (14), toutes deux formées 5 à partir d'une même feuille métallique, caractérisé en ce que la partie d'enfichage (12) comporte : deux joues élastiques (22) placées l'une en face de l'autre et délimitant un logement d'un élément mâle de contact, les faces internes des joues étant des- 10. tinées à être au contact d'un élément mâle de contact, - un pontet externe (24) placé à l'extrémité de l'a. partie d'enfichage qui est opposée à la partie de raccordement, et solidaire des deux joues d'un côté du logement délimité par les deux joues, 5 - un pontet interne (28) placé à l'extrémité de la partie d'enfichage qui est proche de la partie de raccordement et solidaire des deux joues du même côté dudit logement que le pontet externe, et une languette élastique (26) ayant une partie 0 solidaire du pontet externe et une extrémité libre tournée vers le pontet interne, la languette s 'écartant dudit logement de son extrémité solidaire du pontet externe vers son extrémité libre.CLAIMS 1. Female contact piece in one piece, for connector, of the type which comprises a plug-in part (12) and a connection part (14), both formed from the same metal foil, characterized in that the plug-in part (12) comprises: two elastic cheeks (22) placed one opposite the other and delimiting a housing for a male contact element, the internal faces of the cheeks being designed to be in contact with a male contact element, - an external trigger guard (24) placed at the end of the a. plug 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, 5 - an internal trigger guard (28) placed at the end of the plug part which is close to the connection part and secured to the two cheeks on the same side of said housing as the external trigger guard, and an elastic tongue (26) having a part 0 secured to the external trigger guard and a free end facing the internal trigger guard, the tongue s 'deviating from said housing of its end integral with the external trigger guard towards its free end.
2. Elément selon la revendication 1, caractérisé 5, en ce que les joues (22) ont une forme incurvée convexe vers le logement de l'élément mâle.2. Element according to claim 1, characterized 5, in that the cheeks (22) have a convex curved shape towards the housing of the male element.
3. Elément selon l'une des revendications 1 et 2, caractérisé en ce que la partie de raccordement (14) est plate et comporte au moins un crevé (32) de forme 0 rectangulaire, ayant deux dents (34, 36) placées à des bords opposés du crevé et délimitées par des bords complé¬ mentaires, chaque dent étant disposée transversalement à la partie de raccordement.3. Element according to one of claims 1 and 2, characterized in that the connection part (14) is flat and comprises at least one puncture (32) of rectangular shape 0, having two teeth (34, 36) placed at opposite edges of the puncture and delimited by complementary edges, each tooth being arranged transversely to the connection part.
4. Elément selon la revendication 3, caractérisé 5 en ce qu'il comporte deux crevés dans la partie de raccorde¬ ment.4. Element according to claim 3, characterized 5 in that it comprises two punctures in the connection portion.
5. Elément selon l'une des revendications 3 et 4, caractérisé en ce que les dents (34, 36) " des crevés ont des- bords complémentaires en V, l'une des dents ayant une pointe et l'autre deux.5. Element according to one of claims 3 and 4, characterized in that the teeth (34, 36) " of the punctures have complementary V-shaped edges, one of the teeth having a point and the other two.
6. Elément selon la revendication 5, caractérisé en ce que la pointe du V est proche de la base de la dent (36) afin que les deux pointes s'écartent l'une de l'autre à proximité de la base.6. Element according to claim 5, characterized in that the point of the V is close to the base of the tooth (36) so that the two points deviate from each other near the base.
7. Bande d'éléments femelles de contact selon l'une quelconque des revendications 1 à 6, la bande étant formée en 0 une seule pièce à partir d'une feuille métallique, caractérisée en ce qu'elle comporte une bande porteuse (10) ayant des trous de pilotage (16), les pontets externes (24) des éléments femelles de contact étant solidaires de la bande porteuse, la somme des largeurs du pontet externe (24) et des 5 joues d'un élément à l'endroit où elles sont solidaires du pontet externe étant égale au pas des éléments femelles de contact le long de la bande porteuse.7. Strip of female contact elements according to any one of claims 1 to 6, the strip being formed in one piece from a metal sheet, characterized in that it comprises a carrier strip (10) having pilot holes (16), the external bridges (24) of the female contact elements being integral with the carrier strip, the sum of the widths of the external bridge (24) and the 5 cheeks of an element where they are integral with the external trigger guard being equal to the pitch of the female contact elements along the carrier strip.
8. Bande selon la revendication 7, caractérisée en ce que la somme des largeurs du pontet interne (28) et des 0 joues (22) à l'endroit où elles sont solidaires de ce pontet, . est égale au pas des éléments femelles de contact.8. Strip according to claim 7, characterized in that the sum of the widths of the internal trigger guard (28) and the 0 cheeks (22) at the place where they are integral with this trigger guard,. is equal to the pitch of the female contact elements.
9. Procédé de fabrication d'une bande d'éléments femelles de contact selon l'une des revendications 7 et 8, caractérisé en ce qu'il comporte, dans une bande métallique, 5 - la séparation d'une partie destinée à former la bande porteuse de parties destinées à former des joues (22) , - la séparation d'une partie destinée à former une languette (26) sur tous ses côtés sauf du côté du pontet externe (24) , et J0 - la séparation des éléments femelles de contact les uns des autres par une opération de cisaillage sans perte de matière, le long des bords externes (44) des joues.9. A method of manufacturing a strip of female contact elements according to one of claims 7 and 8, characterized in that it comprises, in a metal strip, 5 - the separation of a part intended to form the strip carrying parts intended to form cheeks (22), - the separation of a part intended to form a tongue (26) on all its sides except on the side of the external trigger guard (24), and J0 - the separation of the female elements contact with each other by a shearing operation without loss of material, along the outer edges (44) of the cheeks.
• 10» Procédé selon la revendication 9, caractérisé en ce qu'il comprend en outre la formation de crevés (32) dans 5 la partie de raccordement, les crevés étant formés par cisaillage. • 10 »The method of claim 9, characterized in that it further comprises punctured formation (32) in the connecting portion 5, the slashes being formed by shearing.
EP87904536A 1986-07-11 1987-07-09 Socket contact element, strip provided thereof and method of manufacturing Expired - Lifetime EP0274503B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87904536T ATE80502T1 (en) 1986-07-11 1987-07-09 FEMALE CONTACT ELEMENT, SUPPORTING STRIP AND MANUFACTURING PROCESS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8610183A FR2601517B1 (en) 1986-07-11 1986-07-11 FEMALE CONTACT ELEMENT, STRIP FORMED FROM SUCH ELEMENTS, AND MANUFACTURING METHOD THEREOF
FR8610183 1986-07-11

Publications (2)

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

Family

ID=9337378

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87904536A Expired - Lifetime EP0274503B1 (en) 1986-07-11 1987-07-09 Socket contact element, strip provided thereof and method of manufacturing

Country Status (7)

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

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 (en) * 1990-04-18 1991-11-18 Du Pont Nederland CONNECTING ELEMENT.
FR2777707B1 (en) * 1998-04-17 2000-06-16 Nicomatic FRAMED CONTACT ELEMENT STRIP, MANUFACTURING METHOD THEREOF AND APPLICATION TO CONTACT ASSEMBLIES

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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
US3633156A (en) * 1969-04-29 1972-01-04 Amp Inc Tab receptacle
US3806859A (en) * 1973-01-30 1974-04-23 Sealectro Corp Contacts for pin terminals
JPS5349502Y2 (en) * 1973-04-05 1978-11-28
AU6777474A (en) * 1973-04-16 1975-10-16 Utilux Pty Ltd Femal receptacle connector
JPS5119582A (en) * 1974-08-08 1976-02-16 Tokyo Shibaura Electric Co UZUDENRYUGATATANSHOSOCHI
DE2644612C3 (en) * 1976-10-02 1986-05-07 Harting Elektronik Gmbh, 4992 Espelkamp Contact element bent from sheet metal for a multi-pole electrical connector
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 (en) * 1980-10-06 1982-04-21

Non-Patent Citations (1)

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Title
See references of WO8800762A1 *

Also Published As

Publication number Publication date
FR2601517A1 (en) 1988-01-15
US4806121A (en) 1989-02-21
WO1988000762A1 (en) 1988-01-28
DE3781661D1 (en) 1992-10-15
ATE80502T1 (en) 1992-09-15
JPH01500311A (en) 1989-02-02
FR2601517B1 (en) 1990-02-09
EP0274503B1 (en) 1992-09-09
DE3781661T2 (en) 1993-04-22

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