DE2653592B1

DE2653592B1 - Flat cable connection device

Info

Publication number: DE2653592B1
Application number: DE19762653592
Authority: DE
Inventors: Walter Ing Faber; Josef Ing Heft
Original assignee: Siemens AG
Current assignee: Siemens AG
Priority date: 1976-11-25
Filing date: 1976-11-25
Publication date: 1978-02-09
Also published as: DE2653592C2

Description

Weiter kann erfindungsgemäß vorgesehen sein, daß auf der dem Bügelquerstück zugewandten Seite des Deckgliedes eine vom Bügelquerstück überdeckbare, im Querschnitt im wesentlichen trapezförmige Vertiefung, quer zum Flachkabelverlauf in das Deckglied eingearbeitet ist, daß die Bügelschenkel des aus einem Metallblech bestehenden Bügels jeweils mit einem entgegengesetzt zum Verlauf ihrer freien Enden freigeschnittenen Lappen an einer Kante einer fensterartigen Ausbrechung der Rastarme verhakbar ausgebildet sind und daß am Deckglied als Widerlager der Rastarmenden vorgesehene Rastbalkone an ihren der Auflagefläche zugewandten Seite abgeschrägt ausgebildet sind. It can further be provided according to the invention that on the bracket crosspiece facing side of the cover member a coverable by the bracket cross-piece, in cross section essentially trapezoidal recess, transversely to the flat cable run in the cover member is incorporated that the bracket legs of the bracket consisting of a sheet metal each with an opposite to the course of their free ends cut free Tabs formed so that they can be hooked on one edge of a window-like breakout of the latching arms are and that provided locking balconies on the cover member as an abutment of the locking arm ends are bevelled on their side facing the support surface.

Man erhält dadurch eine besonders betriebssichere Einklemmung des Flachkabels zwischen Klemmbügel und Deckglied, da das Kabel auch zwischen den abgeschrägten Seitenflächen der trapezförmigen Vertiefung und dem Bügelquerstück eingeklemmt und abgefangen wird. Über die fensterartigen Ausbrechungen in den Rastarmen des Basisgliedes sind die zum Verhaken des Bügels am Basisglied dienenden freigeschnittenen Lappen einerseits jederzeit zugänglich und können daher z. B. mit Hilfe eines Schraubenziehers unkompliziert aus ihrer Raststellung herausgedrückt werden, andererseit jedoch so geschützt angeordnet, daß eine unbeabsichtigte Freigabe des Klemmbügels nahezu ausgeschlossen werden kann. Die abgeschrägten Seiten - der im Deckglied vorgesehenen Rastbalkone schließlich bewirken beim Zusammenfügen von Basis-und Deckglied automatisch das federnde Auseinanderspreizen der Rastarme des Basisgliedes, so daß hierzu keine zusätzlichen Hilfsmittel erforderlich sind. This results in a particularly reliable clamping of the Flat cable between the clamping bracket and cover member, as the cable is also between the beveled Clamped side surfaces of the trapezoidal recess and the bracket crosspiece and is intercepted. About the window-like breakouts in the locking arms of the base link are the tabs that have been cut free for hooking the bracket to the base link on the one hand always accessible and can therefore z. B. with the help of a screwdriver can be easily pushed out of their locking position, but on the other hand like this Arranged protected that an unintentional release of the clamping bracket is almost impossible can be. The bevelled sides - of the locking balconies provided in the cover member after all, this is automatically achieved when the base and cover member are joined together resilient spreading apart of the locking arms of the base member, so that no additional resources are required.

Ein Ausführungsbeispiel der Erfindung nachstehend an Hand von vier Figuren noch näher erläutert. An embodiment of the invention below with reference to four Figures explained in more detail.

Dabei zeigen, jeweilst stark vergrößert, F i g. 1 die Vorrichtung in Vorderansicht und in sogenannenter Explosionsdarstellung, F i g. 2 eine Ansicht der Vorrichtung von oben, jedoch ohne Klemmbügel, F i g. 3 ebenfalls in sogenannter Explosionsdarstellung eine Seitenansicht der Vorrichtung und F i g. 4 eine weitere Seitenansicht, bei der sämtliche Teile der Vorrichtung miteinander verbunden sind. F i g show, greatly enlarged in each case. 1 the device in front view and in what is known as an exploded view, FIG. 2 a view of the device from above, but without a clamp, F i g. 3 also in so-called An exploded view of a side view of the device and FIG. 4 another Side view in which all parts of the device are connected to one another.

Im einzelnen ist den Figuren zu entnehmen, daß die Vorrichtung ein Basisglied 1 sowie ein Deckglied 2 aufweist Das Basisglied besteht im wesentlichen aus einer Grundplatte 1a mit rechteckförmigem Umriß, deren eine große Oberfläche eine Auflagefläche 3 fiir ein an die Vorrichtung anzuschließendes Flachkabel 4 bildet. An den Schmalseiten der Grundplatte 1 a sind mit dieser rechtwinklig zur Grundplatte 1a verlaufende und einstückig mit ihr zusammenhängende Rastarme 5 verbunden. Die Rastarme 5 begrenzen die Auflagefläche 3 parallel zum Verlauf des Flachkabels 4. Aus der Auflagefläche 3 stehen gegabelte Enden 6 von Kontaktelementen vor, die in der Grundplatte 1 a des Basisgliedes 1 befestigt sind. Jeder Schlitz 7, der von den Enden 6 eines der Kontaktelemente begrenzt wird, ist vorgesehen, um einen der Einzelleiter 8 des Kabels 4 aufzunehmen, wenn das Kabel 4 gegen die Auflagefläche 3 des Basisgliedes 1 gedrückt wird. Die Enden 6 durchstoßen hierbei eine die Einzelleiter 8 des Kabels 4 umhüllende und die Einzelleiter untereinander verbindende Isolierstoffschicht 9 des Kabels 4. Auf der von der Auflagefläche 3 abgewandten Seite des Basisgliedes 1 stehen die Kontaktelemente mit zum Einstecken in Rasterbohrungen einer Leiterplatte geeigneten stiftförmigen Enden 10 aus der Grundplatte 1davor. In detail, it can be seen from the figures that the device is a Base member 1 as well as a cover member 2. The base member consists essentially from a base plate 1a with a rectangular outline, one of which has a large surface forms a support surface 3 for a flat cable 4 to be connected to the device. On the narrow sides of the base plate 1 a are with this at right angles to the base plate 1 a extending and integrally connected with her locking arms 5 connected. the Latching arms 5 delimit the support surface 3 parallel to the course of the flat cable 4. Forked ends 6 of contact elements protrude from the support surface 3, which are shown in FIG the base plate 1 a of the base member 1 are attached. Each slot 7 running from the ends 6 of one of the contact elements is limited, is provided to one of the Single conductor 8 of the cable 4 to be received when the cable 4 against the support surface 3 of the base member 1 is pressed. The ends 6 pierce the individual conductors 8 of the cable 4 enveloping and connecting the individual conductors to one another insulating layer 9 of the cable 4. On the side of the base member facing away from the support surface 3 1, the contact elements are available for insertion into grid bores of a circuit board suitable pin-shaped ends 10 from the base plate 1 in front of it.

Das zwischen die Rastarme 5 des Basisgliedes einzulegende Flachkabel 4 wird durch die Rastarme automatisch so justiert, daß die Einzelleiter 8 des Flachkabels in Verlängerung der Schlitze 7 der zugeordneten gegabelten Enden 6 der Anschlußelemente zu liegen kommen. The flat cable to be inserted between the locking arms 5 of the base member 4 is automatically adjusted by the locking arms so that the individual conductors 8 of the flat cable as an extension of the slots 7 of the associated forked ends 6 of the connecting elements come to rest.

Zum Andrücken des Flachkabels 4 an die Auflagefläche des Basisgliedes ist das plattenförmige Deckglied 2 vorgesehen, das an seiner dem Flachkabel 4 zugewandten Seite 11 den Einzelleitern 8 des Flachkabels 4 zugeordnete rillenförmige Vertiefungen 12 aufweist. An den Schmalseiten des Deckgliedes 2 vorgesehene Rastbalkone 13 arbeiten mit hakenförmig abgewinkelten Enden 14 der Rastarme 5 des Basisgliedes 1 zusammen. Beim Andrücken des Deckgliedes 2 an das Basisglied 1 spreizen zunächst abgeschrägte, der Auflagefläche 3 zugewandte Seiten der Rastbalkone 13 die Rastarme 5 federnd nach außen, also vom Deckglied 2 weg. Sobald'jedoch das Deckglied 2 die Einzelleiter 8 des Flachkabels 4 genügend weit in die Schlitze 7 der gegabelten Enden 6 der Kontaktelemente eingedrückt hat - hierzu sind im Deckglied 2 in der Figur nicht sichtbare Ausnehmungen zur Aufnahme der Enden 6 der Kontaktelemente vorgesehen - gelangen die hakenförmigen Enden 14 der Rastarme 5 auf die Höhe der vom Basisglied 1 abgewandten Seiten der Rastbalkone 13. Die Rastarme 5 können dadurch in ihre Ruhestellung zurückfedern und das Deckglied 2 am Basisglied 1 verrasten. For pressing the flat cable 4 against the support surface of the base member the plate-shaped cover member 2 is provided, which is facing the flat cable 4 on its Page 11 grooved depressions associated with the individual conductors 8 of the flat cable 4 12 has. On the narrow sides of the cover member 2 provided locking balconies 13 work with hook-shaped angled ends 14 of the locking arms 5 of the base member 1 together. When the cover member 2 is pressed against the base member 1, beveled, the support surface 3 facing sides of the locking balconies 13, the locking arms 5 resiliently to the outside, ie away from the cover member 2. As soon as'jedoch the cover member 2 the individual conductors 8 of the flat cable 4 far enough into the slots 7 of the forked ends 6 of the contact elements has pressed - for this purpose, recesses are not visible in the cover member 2 in the figure provided for receiving the ends 6 of the contact elements - get the hook-shaped Ends 14 of the locking arms 5 at the level of the sides facing away from the base member 1 Locking balconies 13. The locking arms 5 can thus spring back into their rest position and lock the cover member 2 on the base member 1.

Zur mechanischen Entlastung der Verbindungsstellen zwischen den gegabelten Enden 6 der Kontaktelemente und den Flachkabel-Einzelleitern 8 ist ein Klemmbügel 16 vorgesehen. Der Klemmbügel 16 besteht zum Unterschied gegenüber dem aus einem Kunststoff hergestellten Basis- bzw. Deckglied aus einem Metallblech. Zur Aufnahme seiner am Bügelquerstück 17 rechtwinklig ansetzenden Schenkel 18 sind Schlitze 19 (F i g. 2) vorgesehen, die prallel zum Flachkabel 4 und nach außen von Innenseiten 20 der Rastarme 5 und nach innen von Seitenflächen des Deckgliedes 2 begrenzt sind. Gegensinnig zum Verlauf der freien Enden der Schenkel 18 des Bügels 16 sind aus den Bügelschenkeln 18 nach außen federnde Lappen 21 freigeschnitten. For mechanical relief of the connection points between the forked The ends 6 of the contact elements and the flat cable individual conductors 8 is a clamping bracket 16 provided. The clamping bracket 16 consists in contrast to the one from one Plastic-made base or cover member from a metal sheet. To record its legs 18 attached at right angles to the bracket crosspiece 17 are slots 19 (F i g. 2) provided, the parallel to the flat cable 4 and outwards from the inside 20 of the locking arms 5 and inwardly by side surfaces of the cover member 2 are limited. Opposite to the course of the free ends of the legs 18 of the bracket 16 are off the bracket legs 18 outwardly resilient tabs 21 cut free.

Beim Einstecken der Bügelschenkel 18 in die Schlitze 19 werden die Lappen 21 federnd in die Ebene der Bügelschenkel 18 gedrückt. Sobald die Lappen 21 jedoch auf die Höhe einer in die Rastarme 5 des Basisgliedes 1 eingearbeiteten fensterartigen Ausbrechung 22 gelangen, federnd die Lappen wieder nach außen und stüzen sich dabei an einer parallel zur Auflagefläche 3 verlaufenden Begrenzungskante 23 des fensterartigen Ausbrechung 22 ab. Soll der Bügel 16 wieder abgenommen werden, so können z. B. mit Hilfe einer in die Ausbrechungen 22 eingeführten Spitze eines Schraubenziehers, die Lappen 21 in die Ebene der Bügelschenkel 18 zurückgedrückt werden. Der Bügel 16 kann dann mit seinen Schenkeln 18 ohne weiteres wieder aus den Schlitzen 19 herausgezogen werden.When inserting the bracket legs 18 into the slots 19, the Tabs 21 resiliently pressed into the plane of the bracket legs 18. Once the rag 21, however, at the level of one incorporated into the latching arms 5 of the base member 1 window-like breakout 22 get, the tabs resiliently back to the outside and support themselves on a delimiting edge that runs parallel to the support surface 3 23 of the window-like breakout 22 from. If the bracket 16 is to be removed again, so can z. B. with the help of an introduced into the breakouts 22 tip Screwdriver, the tabs 21 pushed back into the plane of the bracket legs 18 will. The bracket 16 can then easily be removed again with its legs 18 the slots 19 are pulled out.

Vorteilhaft können die abgewinkelten Enden 14 der Rastarme 5 auch so ausgebildet sein (in den Figuren nicht dargestellt), daß die Einsteckmündung der Schlitze 19 als oeffnung in die Enden 14 der Rastarme 5 eingearbeitet ist. Die durch diese Öffnung hindurchgesteckten Bügelschenkel verriegeln die Rastarme dadurch in ihrer am Deckglied 2 verrasteten Stellung. The angled ends 14 of the latching arms 5 can also be advantageous be designed (not shown in the figures) that the plug-in mouth the slot 19 is incorporated as an opening in the ends 14 of the locking arms 5. the Stirrup legs inserted through this opening lock the latching arms in this way in their position locked on the cover member 2.

An seiner dem Deckglied 2 zugesandten Seite ist der Bügel 16 mit einem Wulst 24 versehen. Außerdem ist in das Deckglied 2 quer zum Verlauf des Flachkabels 4 eine Vertiefung 25 mit trapezförmigem Querschnitt eingearbeitet. Der Bügel 16 taucht mit dem Wulst 24 in die Ausnehmung 25 ein und drückt dadurch das über das Deckglied 2 gelegte Flachkabel 4 in die Vertiefung. On its side facing the cover member 2, the bracket 16 is with a bead 24 is provided. In addition, the cover member 2 is transverse to the course of the flat cable 4 incorporated a recess 25 with a trapezoidal cross-section. The bracket 16 dips with the bead 24 into the recess 25 and thereby presses the over the Cover member 2 laid flat cables 4 in the recess.

Auf diese Weise wird die mechanische Abfangung des Flachkabels 4 relativ toleranzunempfindlich gegenüber z. B. in der Dicke schwankenden Flachkabeln. Außerdem wird die Klemmwirkung des Bügels 16 noch vergrößert. In this way, the mechanical support of the flat cable 4 relatively insensitive to tolerance towards z. B. in the thickness fluctuating flat cables. In addition, the clamping effect of the bracket 16 is increased.

Claims

Claims: 1. Device for the free connection of the individual conductors a flat cable to contact elements, in which the contact elements in one with a Support surface for the flat cable provided base member are attached and with a end bifurcated from the support surface to accommodate a single flat cable conductor protrude and on a side of the base member facing away from the support surface have pin-shaped ends that can be inserted into grid bores of a carrier plate, and in which a cover member provided with recesses for the forked ends Press the flat cable against the support surface and use a clamp to clamp it of the cable between a side of the cover member facing away from the support surface and a cross piece of the bracket is provided and the cover member is provided on the base member Help of two, cover member and base member to a mounting frame for the flat cable complementary locking arms can be attached and the bracket with its legs on the base member is designed to be hooked, that is, between facing surfaces (20) to delimit the support surface (3) with the base member (1) integrally connected locking arms (5) and parallel to the locking arms (5) - extending side surfaces of the cover member (2) insertion slots (19) for the Legs (18) of the clamping bracket (16) are formed.

2. Apparatus according to claim 1, characterized in that the mouth of the insertion slots (19) at least partially across the course of the flat cable provided, the connection between the cover and base member causing the hook-shaped angled ends (14) of the locking arms (15) is bordered.

3. Device according to one of claims 1 or 2, characterized in that that on the bracket cross piece (17) facing side of the cover member (2) a The cross-piece (17) can be covered over and is essentially trapezoidal in cross-section Recess (25) is incorporated into the cover member (2) transversely to the course of the flat cable.

4. Apparatus according to claim 1, characterized in that the bracket legs (18) of the bracket (16) made of sheet metal, each with one opposite tabs (21) cut free to run their free ends on one edge (23) a window-like breakout (22) of the locking arms (5) are designed to be hooked.

5. Apparatus according to claim 2, characterized in that the cover member (2) as an abutment of the locking arm ends (14) provided locking balconies (13) on their the Support surface (3) facing sides (15) are formed beveled.

The invention relates to a device for solderless connection the single conductor of a flat cable to contact elements, in which the contact elements fastened in a base member provided with a support surface for the flat cable and with an end forked to receive a flat cable single conductor the support surface protrude and on a side facing away from the support surface of the base member, pin-shaped insertable into grid bores of a carrier plate Have ends, and one provided with recesses for the forked ends Cover member for pressing the flat cable against the support surface and a clamping bracket for clamping the cable between a side facing away from the support surface of the cover member and a cross piece of the bracket is provided and the cover member on the base member with the help of two, cover member and base member to a receiving frame for the flat cable additional locking arms can be attached and the bracket with his Legs is designed to be hooked on the base member.

Such a device is known from DT-OS 2541 441. With this one known connectors for Flachkabei are those for attaching the cover member to the base member provided locking arms formed integrally with the cover member and the clamping The clamping bracket provided for the cable is pushed onto the cover member with its legs. However, this can lead to the legs of the clamping bracket jumping off spontaneously come from the base member in particular when the legs of the bracket, for. B.

spread by repeated use, with their free ends wider stand apart than this for a secure locking of the bracket on the base member It is therefore an object of the invention to provide a device of the initially mentioned mentioned type in such a way that in particular a reliable fastening of the clamp on the base link is guaranteed.

According to the invention, this object is achieved in that between facing surfaces of the to limit the bearing surfaces locking arms integrally connected to the base member and parallel to the locking arms extending side surfaces of the cover member insertion slots for the legs of the Clamp are formed.

It is advantageously achieved in this way that the distance between the free Ends of the legs of the clamping bracket from one another forcibly adjusted through the slots so that they cannot escape to the outside.

In a further embodiment he invention it is provided that the mouth the insertion slots at least partially through transversely to the flat cable run, the connection between the cover and the base member is angled in the shape of a hook Ends of the locking arms is edged.

This advantageously results in the fact that the insertion slots inserted bracket legs the angled ends of the locking arms that the cover member Fix it to the base link, lock it in this position and thus the cover and base link Unreleasably connect with each other until the clamping bracket is pulled out.