DE1540671C3

DE1540671C3 - Electrical plug-in device with protective contact

Info

Publication number: DE1540671C3
Application number: DE19621540671
Authority: DE
Inventors: Otto 5270 Gummersbach Diller
Original assignee: Gebrüder Merten, 5270 Gummersbach
Priority date: 1962-06-07
Filing date: 1962-06-07
Publication date: 1976-02-05

Description

Die Figuren der Zeichnung zeigen einen zweipoligen Stecker 3 mit seitlichem Schutzkontakt. Der Stecker 3 weist einen Unterteil 4 und eine Kappe 5 auf, die beide aus elastischem Isolierstoff gefertigt sind. Der Unterteil 4 ist als Ansatz ausgebildet und am oberen Ende mit einem Vorsprung 6 versehen, der von der Kappe 5 übergriffen wird. In dem Unterteil 4 ist ein Einsatzkörper 7 aus formbeständigem Isolierstoff eingelagert, der die Steckerstifte 8 trägt und einen hochgezogenen Steg 9 aufweist. Der Einsatzkörper 7 ist mittig durch eine Schraube 10 mit einer Schutzkontaktschieneil verbunden, die ihrerseits eine außermittige Anschlußklemme 12 für die Schutzkontaktleitung aufweist.The figures of the drawing show a two-pole plug 3 with a protective contact on the side. the Plug 3 has a lower part 4 and a cap 5, both of which are made of elastic insulating material are. The lower part 4 is designed as a shoulder and is provided with a projection 6 at the upper end, which is overlapped by the cap 5. In the lower part 4 there is an insert body 7 made of dimensionally stable Insulating material embedded, which carries the connector pins 8 and has a raised web 9. The insert body 7 is centrally connected by a screw 10 to a protective contact rail part, which in turn has an eccentric terminal 12 for the protective contact line.

Der Unterteil 4 ist an beiden Seiten mit Nasen 13 versehen, die den Stecker 3 in bekannter Weise unverwechselbar machen und die durch Vorsprünge 14 des Einsatzkörpers 7 versteift sind. Dem Unterteil 4 ist eine hochgezogene Wandung 15 angeformt, die am oberen Ende mit dem Steg 9 abschließt und in einer sacklochartigen Tasche 16 eine Metalleinlage in Form einer Platte 17 trägt. Diese weist eine T-Form auf mit drei Gewindebohrungen 18 an den freien Enden. Die untere Gewindebohrung 18 nimmt eine Schraube 19 zur Befestigung der Kappe auf. Mit den beiden oberen Gewindebohrungen 18 wirken zwei weitere Schrauben 20 zusammen, die zu einer Zugentlastungsschelle 21 gehören, mit der das Kabel in bekannter Weise festgeklemmt werden kann. Die gewählte Anordnung sichert einen Berührungsschutz, sowohl für die Schrauben als auch für die Zugentlastungsschelle. The lower part 4 is provided on both sides with lugs 13 which unmistakably make the plug 3 unmistakable in a known manner make and which are stiffened by projections 14 of the insert body 7. The lower part 4 a raised wall 15 is formed, which terminates at the upper end with the web 9 and in a pocket hole-like pocket 16 carries a metal insert in the form of a plate 17. This has a T-shape with three threaded holes 18 at the free ends. The lower threaded hole 18 takes a screw 19 for fastening the cap. Act with the two upper threaded holes 18 two more screws 20 together, which belong to a strain relief clamp 21 with which the cable can be clamped in a known manner. The chosen arrangement ensures contact protection, both for the screws and for the strain relief clamp.

Der Steg 9 und die hochgezogene Wandung 15 weisen in ihrem Mittelbereich je einen längsgerichteten Ausschnitt 22 bzw. 22 α auf. Die Ausschnitte 22 bzw. 22 a dienen zum Einführen und Haltern der Kontaktschiene 11. Der Unterteil 4 bildet eine Auflage 23 für die Schutzkontaktschiene 11, der Einsatzkörper 7 ein abgewinkeltes Fußstück 24 mit zwei abgesetzten Füßen 25, die in einer entsprechenden Aussparung 26 des Unterteils sitzen und in je einer stirnseitigen Aussparung 27 des Unterteils 4 enden.The web 9 and the raised wall 15 each have a longitudinal cutout 22 and 22 α in their central region. The cutouts 22 and 22 a are used to insert and hold the contact rail 11. The lower part 4 forms a support 23 for the protective contact rail 11, the insert body 7 an angled foot piece 24 with two offset feet 25 that sit in a corresponding recess 26 of the lower part and each end in a front recess 27 of the lower part 4.

Die gewählte Anordnung läßt die Stirnfläche des Steckers 3 frei; jede Vernietung entfällt. Die Schutzkontaktschiene 11 ist mit dem Einsatzkörper 7 lös- und einstellbar verbunden, so daß diese VerbindungThe chosen arrangement leaves the face of the plug 3 free; there is no need for riveting. The protective contact rail 11 is releasably and adjustably connected to the insert body 7, so that this connection

ίο nachgezogen werden kann und damit mit einfachen Mitteln ein Klappern der genannten Teile vermieden ist. Lange Verbindungsschrauben, wie sie bei bekannten Gummisteckern erforderlich waren, entfallen. Die Länge der Steckerstifte 8 ist, entsprechend der geringen Höhe der Füße 25, gegenüber dem Bekannten verkürzt, so daß Werkstoff bei ihrer Herstellung eingespart wird.ίο can be retightened and thus with simple A rattling of said parts is avoided. Long connecting screws, as they are known from Rubber plugs were required, are omitted. The length of the connector pins 8 is accordingly the low height of the feet 25, shortened compared to the known, so that material in their manufacture is saved.

Bei der Montage des Steckers 3 wird die Schutzkontaktschiene 11 in den Ausschnitt 22 des Einsatzkörpers 7 eingelegt und mit diesem durch die Schraube 10 fest verbunden. Anschließend wird der Einsatzkörper 7 mit der an ihm befestigten Schutzkontaktschiene 11 in die Aussparung 26 des Unterteils 4 eingelegt und der Steg 9 und der hochgezogene Wandungsteil 15 aufeinandergelegt. Nach Verklemmen des Kabels und der Anschlußdrähte wird der Unterteil 4 mit dem Einsatzkörper und dem Steg 9 in die Kappe 5 bis zum Anschlag 28 eingeführt, wobei der Vorsprung 6 am Umfang in die Kappe 5 einrastet. Die Kappe 5 und der Unterteil 4 werden durch die Schraube 19 miteinander verbunden, wobei der Steg 9 die hochgezogene Wandung 15 abstützt.When installing the plug 3, the protective contact rail 11 is in the cutout 22 of the insert body 7 inserted and firmly connected to this by the screw 10. Then the Insert body 7 with the protective contact rail 11 attached to it in the recess 26 of the lower part 4 inserted and the web 9 and the raised wall part 15 placed on top of one another. After jamming of the cable and the connecting wires is the lower part 4 with the insert body and the web 9 inserted into the cap 5 up to the stop 28, the projection 6 engaging in the cap 5 at the periphery. The cap 5 and the lower part 4 are connected to one another by the screw 19, the Web 9 supports the raised wall 15.

Zu erwähnen bleibt, daß abweichend vom dargestellten Ausführungsbeispiel die Gestaltung und Anordnung sowohl des Unterteils als auch des Einsatzkörpers der Steckeinrichtung abgeändert werden können.It should be mentioned that, unlike the illustrated embodiment, the design and Arrangement of both the lower part and the insert body of the plug-in device can be modified be able.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

lö 4U Ö7 1 1 2 claims · mounting plate and on the other hand to hold the threaded bushing on the grounding bracket, which is not

1. Electrical connector with protection - only the number of individual parts of the electrical contact, increased with a cap made of a flexible plug-in device, but also the insulating material and with a contact insert, the final construction of these individual parts is made more difficult. The confounders consisting of elastic insulation of a metallic earthing bracket has the consequence Substance existing lower part and one the elec- tric that no insulation between it and the one with her Irish parts-bearing body made of dimensionally stable head lying on the outside of the cap and digem insulating material, which has a retaining screw for the cap that is freely accessible in the interior the raised part protruding from the cap is present. So if for any reason who carries the strain relief clamp and should be live in the earthing bracket, Whichever side has a 'screw for connection, this also applies to the conductively connected to this Cap with the contact insert fastenable dene retaining screw of the cap. This means one is, characterized in that a serious risk to the electrical Steckeinrichdem Lower part (4) molded raised 15 device using people.

Wall (15) in a blind hole-like pocket The invention is based on the object of providing electrical

(16) has an inserted plate (17), the tric plug-in devices of which the geeine initially closer Design the threaded hole (18) of the screw connection marked so that it is in the Verdes The lower part (4) with the cap (5) is used and the same with the known both operationally safe that the body of dimensionally stable insulating material 20, as well as from a small number of the lower part (4) as an insert body (7) - easy to assemble individual parts, is superimposed and a raised web (9) This goal is achieved according to the invention, has, which is also drawn up by means of threaded holes that are molded onto the lower part the plate (17) engaging screws (20) held a wall in a blind hole-like pocket, which also has the strain relief clamp (21) 25 placed plate, one of which has a threaded hole keep. the screw connection of the lower part to the cap

2. Electrical plug-in device according to service and that the body is made of dimensionally stable insulation 1, characterized in that the lower part is incorporated into the lower part as an insert body part (4) is a recess (26) for the insert and has a raised web, the mitkörper (7) and releasably connected with it likewise in threaded bores of the plate is. fender screws is held, which also the tension

3. Hold the electrical connector by the relief clamp.

Claim 1 or 2, characterized in that the inventive design of an electrical

The lower part (4), insert body (7) and / or cap see the plug-in device with protective contact

(5) by means of projections (6, 14) with a positive fit, the advantage that the screw is placed under stress

are bound. to hold the cap is no longer possible,

4. Electrical plug-in device according to An so that this source of risk is known embodiment claim 1, characterized in that the plate shape is eliminated. The raised wall is

(17) is designed as a metal insert. the lower part and the raised web

40 set body molded directly, so that additional fasteners for connecting these parts in

The invention relates to an electrical omission. This also applies to the threaded connector with protective contact, with a cap hole of the screw to hold the cap, made of flexible insulating material and with one which is arranged in the inserted plate, so that contact insert, the latter consisting of one of 45 on the use of one special, subsequently elastic insulating material existing lower part and threaded bushing to be attached is dispensed with.
a body carrying the electrical parts. It is advisable to releasably connect the lower part with a recess of dimensionally stable insulating material, which has a raised part protruding into the insert body and protruding with the interior of the cap. In this way, let who has the strain relief clamp and in 5 ° the mentioned parts easily unite with each other, a screw on the side to connect the gene.
Cap can be attached to the contact insert. It is also recommended that the lower part, insert

In a known embodiment of a body and / or cap shaped by projections

such electrical plug-in device are connected in a positive manner.

Plug pins firmly with a rigid mounting plate 55 It is expedient to use the plate as a metal insert

connected. To be formed on the opposite of the connector pins.

lying side of this mounting plate is a metal
the foot is held in place by a rivet, which F i g. 1 a plug device according to the invention in turn at the same time also the bow-shaped protective 60 with protective contact in longitudinal section and
contact location secured. Dev metallic grounding bracket F i g. 2 shows a section through the plug-in device has a laterally protruding threaded bushing, in FIG. 1, along the line II-II, partly in which the screw for holding the cap in place is viewed from the side.

the plug-in device engages (German usage It should first be said that in the figures

sample 1 706 134). 65 cables and individual cores left out of the drawing.

In the known embodiment of such a sen, because this is not only a known structure electrical plug-in devices are therefore to have additional, but also in a known manner on-connecting means required to hand the be closed.