EP0358101B1 - Plug for a plug and socket connection - Google Patents

Plug for a plug and socket connection Download PDF

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Publication number
EP0358101B1
EP0358101B1 EP89116046A EP89116046A EP0358101B1 EP 0358101 B1 EP0358101 B1 EP 0358101B1 EP 89116046 A EP89116046 A EP 89116046A EP 89116046 A EP89116046 A EP 89116046A EP 0358101 B1 EP0358101 B1 EP 0358101B1
Authority
EP
European Patent Office
Prior art keywords
housing
plug
bayonet ring
plug according
bayonet
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
EP89116046A
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German (de)
French (fr)
Other versions
EP0358101A2 (en
EP0358101A3 (en
Inventor
Andree Casagrande
Otto Schuster
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.)
Maehler & Kaege AG
Original Assignee
Maehler & Kaege AG
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Filing date
Publication date
Application filed by Maehler & Kaege AG filed Critical Maehler & Kaege AG
Publication of EP0358101A2 publication Critical patent/EP0358101A2/en
Publication of EP0358101A3 publication Critical patent/EP0358101A3/en
Application granted granted Critical
Publication of EP0358101B1 publication Critical patent/EP0358101B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/625Casing or ring with bayonet engagement

Definitions

  • the invention relates to a plug for a plug connection for an electrical connection, in particular of motor vehicle trailers, with a housing, a bayonet connection part with a rotatable bayonet ring and a cover platform.
  • the lid platform With a connector according to DE-GM 86 15 641, the lid platform is firmly connected to the bayonet ring. When the bayonet ring is in the unlocked position for inserting the plug, the lid platform is therefore rotated by about 100 ° with respect to the can lid. As a result, it is difficult for operators with little practice to find the correct insertion position because they usually try to align the lid platform with the can lid.
  • the invention has for its object to provide a plug for a connector for an electrical connection, which is easy to use.
  • the lid platform and the housing are firmly connected to one another and, consequently, the plug is directly in the insertion position when the can lid and the lid platform are aligned.
  • the insertion process is extremely simplified in this way for the operators.
  • the cover platform and the housing are formed in one piece, which simplifies assembly.
  • An intermediate piece is expediently included in the connection of the lid platform / housing, so that there is a solid structural unit.
  • the bayonet ring advantageously has a cam projection which can be locked with the cover platform.
  • This cam projection has different functions. On the one hand, it makes the respective position of the bayonet ring visible, i.e. it can be seen with the naked eye whether the bayonet ring is in the locked or in the unlocked position.
  • the cam projection ensures that the can lid only fully rests on the lid platform when the cam projection is in the locking position.
  • the cam projection has a sharp-edged nose.
  • the locking of the cam projection with the lid platform is particularly fixed, and unlocking can only take place if the can lid is lifted beforehand by hand. This creates an additional safeguard against unlocking.
  • the cam projection has a rounded nose. This constructive measure ensures that the can lid automatically lifts during the unlocking process through the rounded nose and the can lid no longer has to be lifted by hand. This enables unlocking with one hand, whereby the lid platform is free and the plug can be pulled axially out of the socket.
  • the operation of the plug is extremely simplified in practice.
  • the cam projection can be arranged on the central axis assigned to the cover platform. Depending on the design or other requirements, however, a lateral arrangement more to the plug or to the connection side is possible.
  • a recess is advantageously provided in the bayonet ring as a viewing window on the housing. This enables an optical marking, e.g. in the form of an engraving. By means of such a marking provided at suitable points, the unlocking and locking positions can also be made visible to the operator, in that when these positions are reached the corresponding marking display becomes visible.
  • a cap is expediently firmly connected to the bayonet ring.
  • Such a non-detachable and non-rotatable connection can be realized, for example, by a snap connection.
  • the bayonet ring has a neck with the bayonet grooves.
  • an annular disk for example made of spring bronze, is provided between the housing and the bayonet ring with an anchoring projection and a resilient projection, a recess in the housing being provided for the anchoring projection and a recess in the bayonet ring for the resilient projection.
  • the washer is non-rotatably connected to the housing by means of the anchoring projection.
  • the resilient projection enables a non-rotatable connection to the bayonet ring in the extended position. In this way, the housing of the plug with the bayonet ring is rotationally fixed in the unlocked position connected so that an unintentional twisting of the bayonet ring with respect to the housing, at least when not plugged in, is not possible. If the plug is inserted into the socket in the unlocked position, the resilient projection is pressurized and the lock is released. As a result, the bayonet ring can be rotated to lock the plug in the socket.
  • an axially adjustable plunger is mounted in the bayonet ring, which is in engagement with the resilient projection with its head located at the rear end and for whose head a rotating groove is provided in the housing.
  • the plunger is pushed backwards and presses the resilient projection of the washer backwards, which releases the lock.
  • the plunger In the rear position, when the bayonet ring is rotated, the plunger is displaced or guided in a rotating groove, which ensures that the bayonet ring can be rotated in the inserted position.
  • the rotary groove expediently has a locking lug at the end, which delimits a locking recess in accordance with the locking of the bayonet ring.
  • the tappet shaft then runs over the latching lug into the locking recess, which is made possible by the elasticity of the housing made of plastic. This ensures a secure locking of the connector. Due to the design, a slightly higher torque must be used to unlock the plug than to lock it.
  • a groove for the locking lug is provided in the bayonet ring.
  • the exemplary embodiments of the connector according to the invention shown in the drawing relate to a thirteen-pin connector according to DIN draft 72570, part 1.
  • DIN draft 72570 part 1.
  • the area of application is much wider and the illustration serves only to illustrate the principle of the invention.
  • the connector shown is provided for a plug connection for an electrical connection of motor vehicle trailers. It comprises a housing 10, a rotatable bayonet ring 20 and a cover platform 30 and an intermediate piece 40, e.g. 1a can be seen.
  • the lid platform 30 serves to support a can lid 50 when the socket is open. This is with protrusions, e.g. Edge tabs (cf. FIG. 3d), for engagement in corresponding bayonet grooves 22.
  • the cover platform 30, the intermediate piece 40 and the bayonet ring 20 are formed in one piece in the illustrated exemplary embodiment.
  • the bayonet ring 20 is provided with a cam projection 24 which extends radially outward (see FIGS. 1b, 2b).
  • the cam projection 24 is clearly recognizable from the outside in the respective position and engages under a corresponding lateral projection in the edge area 52 of the can lid 50 which is formed on the inside with reinforcing ribs 54.
  • the cam projection 24 is formed with a sharp-edged nose 26 which engages firmly under the edge region 52 when the bayonet ring 20 is in the locked position.
  • the cam projection is provided with a rounded nose 28 for easier unlocking.
  • a recess 60 is provided in the bayonet ring 20 as a viewing window on the housing 10.
  • the recess 60 releases a label “locked” or “unlocked” depending on the position, so that the respective plug position is easily visible.
  • the bayonet ring 20 is firmly connected at the rear end with an aligned cap 62. At the front end it is formed with a neck 64 in which the bayonet grooves 22 are located. At the rear end, the housing 10 carries a rotatable attachment 66, which ensures the sealing of the plug.
  • annular disk 70 is arranged between the housing 10 and the bayonet ring 20.
  • the annular disk 70 has a fixed anchoring projection 72 and a resilient projection 74. With the anchoring projection 72, the washer 70 firmly engages in a recess or groove 12 in the housing 10.
  • the resilient projection 74 protrudes into a recess 68 in the bayonet ring 20, as can best be seen from FIG. 3c.
  • a plunger 80 is axially adjustable in the bayonet ring 20. Its head 82 located at the rear end engages with the resilient projection 74 of the annular disk 70.
  • the plunger In Fig. 3a the plunger is shown in the front position corresponding to the unlocked position of the plug, while the adjustment movement of the plunger 80 is illustrated by means of edge tabs 4 located on the socket neck 2 in Fig. 3d and 3e.
  • the resilient projection 74 becomes the ring disk 70 pressed into the plane of the annular disk such that the head 82 of the plunger 80 arrives in a rotary groove 14 in the housing 10, in which the head 82 can be guided when the bayonet ring is rotated.
  • the rotary groove 14 has a locking lug 16 at the end, to which a locking recess 18 connects.
  • the locking recess 18 serves for the engagement of the shaft 84 of the plunger 80 and is aligned with the bayonet catch, ie the bayonet grooves 20.
  • a groove 58 is provided for the detent 16.
  • FIG. 3a shows a contact insert 90 with plug contact pins 92 accommodated in the housing 10.
  • the rotation of the bayonet ring 20 with locking / unlocking is explained below. If the plug is not inserted in the socket, the plug is in the unlocked position. Here, the housing 10 and the bayonet ring 20 are fixed by means of the washer 70, i.e. non-rotatable, connected. If the plug is then inserted into the socket with the cover platform 30 aligned with the socket cover 50, the edge lugs 4 (e.g. 3) provided on the socket neck 2 penetrate into the axial sections of the bayonet grooves 22, while at the same time pushing the plunger 80 backwards. The plunger 80 presses the resilient projection 74 of the ring disk 70 to the rear, so that the bayonet ring 20 and the housing 10 are no longer coupled to one another in a rotationally secure manner.
  • the edge lugs 4 e.g. 3
  • the shaft 84 of the plunger 80 slides easily over the curved outer surface of the housing 10 until it reaches Latch 16 arrives.
  • the shaft 84 can be rotated beyond the locking lug 16 and snaps into the locking recess 18, as a result of which the plug is additionally locked.

Abstract

The invention relates to a plug for a plug and socket connection for an electrical connection, in particular of motor vehicle trailers, having a housing (10), a bayonet connection part with rotatable bayonet ring (20) and a cover platform (30). The subject-matter of the invention is characterised in that the cover platform (30) and the housing (10) are firmly connected to each other. <IMAGE>

Description

Die Erfindung bezieht sich auf einen Stecker für eine Steckverbindung für einen elektrischen Anschluß, insbesondere von Kraftfahrzeuganhängern, mit einem Gehäuse, einem Bajonettanschlußteil mit drehbarem Bajonettring und einer Deckelplattform.The invention relates to a plug for a plug connection for an electrical connection, in particular of motor vehicle trailers, with a housing, a bayonet connection part with a rotatable bayonet ring and a cover platform.

Bei einem Stecker gemäß DE-GM 86 15 641 ist die Deckelplattform fest mit dem Bajonettring verbunden. Wenn sich der Bajonettring in der entriegelten Stellung für das Einstecken des Steckers befindet, ist die Deckelplattform daher in bezug auf den Dosendeckel etwa um 100° verdreht. Infolgedessen ist es für Bedienungspersonen mit wenig Übung schwierig, die korrekte Einsteckstellung zu finden, denn sie versuchen in der Regel, die Deckelplattform mit dem Dosendeckel auszurichten.With a connector according to DE-GM 86 15 641, the lid platform is firmly connected to the bayonet ring. When the bayonet ring is in the unlocked position for inserting the plug, the lid platform is therefore rotated by about 100 ° with respect to the can lid. As a result, it is difficult for operators with little practice to find the correct insertion position because they usually try to align the lid platform with the can lid.

Der Erfindung liegt die Aufgabe zugrunde, einen Stecker für eine Steckverbindung für einen elektrischen Anschluß zu schaffen, der bedienungsfreundlich ist.The invention has for its object to provide a plug for a connector for an electrical connection, which is easy to use.

Diese Aufgabe ist bei einem Stecker mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Weitergestaltungen des erfindungsgemäßen Steckers sind Gegenstand der Unteransprüche.This object is achieved with a plug with the features of claim 1. Advantageous further developments of the connector according to the invention are the subject of the dependent claims.

Bei dem erfindungsgemäßen Stecker sind die Deckelplattform und das Gehäuse fest miteinander verbunden und demzufolge befindet sich der Stecker direkt in der Einsteckstellung, wenn der Dosendeckel und die Deckelplattform ausgerichtet sind. Der Einsteckvorgang ist auf diese Weise für die Bedienungspersonen außerordentlich vereinfacht.In the plug according to the invention, the lid platform and the housing are firmly connected to one another and, consequently, the plug is directly in the insertion position when the can lid and the lid platform are aligned. The insertion process is extremely simplified in this way for the operators.

Bei einer vorteilhaften Ausgestaltung des erfindungsgemäßen Steckers sind die Deckelplattform und das Gehäuse einstückig ausgebildet, wodurch die Montage vereinfacht ist.In an advantageous embodiment of the plug according to the invention, the cover platform and the housing are formed in one piece, which simplifies assembly.

In der Verbindung Deckelplattform/Gehäuse ist zweckmäßig ein Zwischenstück miteinbegriffen, so daß sich eine feste Baueinheit ergibt.An intermediate piece is expediently included in the connection of the lid platform / housing, so that there is a solid structural unit.

Der Bajonettring weist vorteilhaft einen Nockenvorsprung auf, der mit der Deckelplattform verriegelbar ist. Dieser Nockenvorsprung hat verschiedene Funktionen. Einerseits macht er die jeweilige Stellung des Bajonettrings sichtbar, d.h. es kann mit bloßem Auge erkannt werden, ob sich der Bajonettring in der verriegelten oder in der entriegelten Stellung befindet. Außerdem stellt der Nockenvorsprung sicher, daß der Dosendeckel nur dann voll zur Auflage auf der Deckelplattform gelangt, wenn sich der Nockenvorsprung in der Verriegelungsstellung befindet.The bayonet ring advantageously has a cam projection which can be locked with the cover platform. This cam projection has different functions. On the one hand, it makes the respective position of the bayonet ring visible, i.e. it can be seen with the naked eye whether the bayonet ring is in the locked or in the unlocked position. In addition, the cam projection ensures that the can lid only fully rests on the lid platform when the cam projection is in the locking position.

Gemäß einer bevorzugten Ausgestaltung des Nockenvorsprungs weist dieser eine scharfkantige Nase auf. Hierdurch wird die Verriegelung des Nockenvorsprungs mit der Deckelplattform besonders fixiert, und es kann eine Entriegelung nur stattfinden, wenn der Dosendeckel vorher von Hand angehoben wird. Dadurch wird eine zusätzliche Sicherung gegen Entriegelung geschaffen.According to a preferred embodiment of the cam projection, it has a sharp-edged nose. As a result, the locking of the cam projection with the lid platform is particularly fixed, and unlocking can only take place if the can lid is lifted beforehand by hand. This creates an additional safeguard against unlocking.

Gemäß einer alternativen Ausführungsform weist der Nockenvorsprung eine abgerundete Nase auf. Durch diese konstruktive Maßnahme wird erreicht, daß sich der Dosendeckel beim Entriegelungsvorgang durch die abgerundete Nase selbsttätig anhebt und der Dosendeckel nicht mehr von Hand angehoben werden muß. Dies ermöglicht eine Entriegelung mit einer Hand, wobei die Deckelplattform frei wird und der Stecker axial aus der Steckdose herausgezogen werden kann. Hier durch ist die Bedienung des Steckers in der Praxis außerordentlich vereinfacht.According to an alternative embodiment, the cam projection has a rounded nose. This constructive measure ensures that the can lid automatically lifts during the unlocking process through the rounded nose and the can lid no longer has to be lifted by hand. This enables unlocking with one hand, whereby the lid platform is free and the plug can be pulled axially out of the socket. Here the operation of the plug is extremely simplified in practice.

Der Nockenvorsprung kann auf der der Deckelplattform zugeordneten Mittelachse angeordnet sein. Je nach den konstruktiven oder sonstigen Erfordernissen ist jedoch auch eine seitliche Anordnung mehr zur Steck- oder zur Anschlußseite hin möglich.The cam projection can be arranged on the central axis assigned to the cover platform. Depending on the design or other requirements, however, a lateral arrangement more to the plug or to the connection side is possible.

Vorteilhaft ist im Bajonettring eine Aussparung als Sichtfenster auf das Gehäuse vorgesehen. Dies ermöglicht es, auf dem Gehäuse eine optische Markierung, z.B. in Form einer Gravur, vorzusehen. Mittels einer derartigen an geeigneten Stellen vorgesehenen Markierung können die Entriegelungs- und Verriegelungsstellungen zusätzlich für die Bedienungsperson sichtbar gemacht werden, indem mit Erreichen dieser Stellungen jeweils die entsprechende Markierungsanzeige sichtbar wird.A recess is advantageously provided in the bayonet ring as a viewing window on the housing. This enables an optical marking, e.g. in the form of an engraving. By means of such a marking provided at suitable points, the unlocking and locking positions can also be made visible to the operator, in that when these positions are reached the corresponding marking display becomes visible.

Mit dem Bajonettring ist zweckmäßig eine Kappe fest verbunden. Eine derartige unlösbare und unverdrehbare Verbindung kann beispielsweise durch eine Schnappverbindung realisiert sein. Am anderen zur Steckdose weisenden Ende trägt der Bajonettring einen Hals mit den Bajonettnuten.A cap is expediently firmly connected to the bayonet ring. Such a non-detachable and non-rotatable connection can be realized, for example, by a snap connection. At the other end facing the socket, the bayonet ring has a neck with the bayonet grooves.

Bei einem bevorzugten Ausführungsbeispiel des erfindungsgemäßen Steckers ist zwischen dem Gehäuse und dem Bajonettring eine Ringscheibe, z.B. aus Federbronze, mit einem Verankerungsvorsprung und einem federnden Vorsprung vorgesehen, wobei für den Verankerungsvorsprung eine Aussparung im Gehäuse und für den federnden Vorsprung eine Aussparung im Bajonettring vorgesehen ist. Mittels des Verankerungsvorsprungs ist die Ringscheibe unverdrehbar mit dem Gehäuse verbunden. Der federnde Vorsprung ermöglicht in der ausgefederten Stellung eine unverdrehbare Verbindung mit dem Bajonettring. Auf diese Weise ist das Gehäuse des Steckers mit dem Bajonettring in der entriegelten Stellung drehfest verbunden, so daß ein unbeabsichtigtes Verdrehen des Bajonettrings in bezug auf das Gehäuse, jedenfalls im nicht eingesteckten Zustand, nicht möglich ist. Wird der Stecker in der entriegelten Stellung in die Steckdose eingeführt, wird der federnde Vorsprung druckbeaufschlagt und die Arretierung wird gelöst. Infolgedessen kann der Bajonettring zur Verriegelung des Steckers in der Steckdose verdreht werden.In a preferred embodiment of the connector according to the invention, an annular disk, for example made of spring bronze, is provided between the housing and the bayonet ring with an anchoring projection and a resilient projection, a recess in the housing being provided for the anchoring projection and a recess in the bayonet ring for the resilient projection. The washer is non-rotatably connected to the housing by means of the anchoring projection. The resilient projection enables a non-rotatable connection to the bayonet ring in the extended position. In this way, the housing of the plug with the bayonet ring is rotationally fixed in the unlocked position connected so that an unintentional twisting of the bayonet ring with respect to the housing, at least when not plugged in, is not possible. If the plug is inserted into the socket in the unlocked position, the resilient projection is pressurized and the lock is released. As a result, the bayonet ring can be rotated to lock the plug in the socket.

Vorzugsweise ist im Bajonettring ein axial verstellbarer Stößel gelagert, der mit seinem am hinteren Ende befindlichen Kopf mit dem federnden Vorsprung in Eingriff steht und für dessen Kopf im Gehäuse eine Drehnut vorgesehen ist. Beim Einstecken des Steckers wird der Stößel nach hinten geschoben und drückt den federnden Vorsprung der Ringscheibe nach hinten, wodurch die Arretierung aufgehoben wird. In der hinteren Stellung wird der Stößel bei Verdrehen des Bajonettrings in einer Drehnut verschoben bzw. geführt, wodurch die Verdrehbarkeit des Bajonettrings in der eingesteckten Stellung sichergestellt ist.Preferably, an axially adjustable plunger is mounted in the bayonet ring, which is in engagement with the resilient projection with its head located at the rear end and for whose head a rotating groove is provided in the housing. When the plug is inserted, the plunger is pushed backwards and presses the resilient projection of the washer backwards, which releases the lock. In the rear position, when the bayonet ring is rotated, the plunger is displaced or guided in a rotating groove, which ensures that the bayonet ring can be rotated in the inserted position.

Zweckmäßig weist die Drehnut am Ende eine Rastnase auf, die eine Verriegelungsaussparung entsprechend der Rasterung des Bajonettrings begrenzt. Am Ende der Verdrehstellung läuft dann der Stößelschaft über die Rastnase in die Verriegelungsaussparung, was durch die Elastizität des aus Kunststoff hergestellten Gehäuses ermöglicht ist. Hierdurch ist eine sichere Verriegelung des Steckers gewährleistet. Zur Entriegelung des Steckers muß konstruktionsbedingt ein etwas höheres Drehmoment als zum Verriegeln aufgewendet werden.The rotary groove expediently has a locking lug at the end, which delimits a locking recess in accordance with the locking of the bayonet ring. At the end of the rotational position, the tappet shaft then runs over the latching lug into the locking recess, which is made possible by the elasticity of the housing made of plastic. This ensures a secure locking of the connector. Due to the design, a slightly higher torque must be used to unlock the plug than to lock it.

Um eine freie Beweglichkeit der Rastnase bei Verdrehung des Bajonettrings sicherzustellen, ist im Bajonettring eine Nut für die Rastnase vorgesehen.In order to ensure free movement of the locking lug when the bayonet ring is rotated, a groove for the locking lug is provided in the bayonet ring.

Die Erfindung wird im folgenden weiter anhand bevorzugter Ausführungsbeispiele und der Zeichnung erläutert. In der Zeichnung zeigen:

Fig. 1a
eine Seitenansicht des Steckers in der entriegelten Stellung,
Fig. 1b
eine Schnittansicht längs Linie A-A in Fig. 1a,
Fig. 1c
eine Ansicht des Steckers von Fig. 1a, in Richtung des Pfeils B in Fig. 1b gesehen,
Fig. 2a
eine Ansicht des Steckers in entriegelter Stellung,
Fig. 2b
eine Schnittansicht des Steckers längs Linie A-A in Fig. 1a, jedoch in verriegelter Stellung,
Fig. 2c
eine Ansicht des Steckers von Fig. 2a, in Richtung des Pfeils C in Fig. 2b gesehen,
Fig. 2d
eine Teilschnittansicht des Dosendeckels mit Einhand-Entriegelung,
Fig. 3a
eine seitliche Teilschnittansicht des Steckers in der entriegelten Stellung,
Fig. 3b
eine Schnittansicht des Steckers längs Linie C-C in Fig. 3a,
Fig. 3c bis 3f
den Stecker in verschiedenen Einsteckstellungen,
Fig. 4a
eine Teilschnitt-Draufsicht des Steckers,
Fig. 4b
eine Schnittansicht des Steckers längs Linie A-A in Fig. 4a,
Fig. 4c
eine seitliche Ansicht einer zwischen Gehäuse und Deckelplattform vorgesehenen Ringscheibe,
Fig. 4d
eine Schnittansicht längs Linie B-B in Fig. 4A,
Fig. 4e
eine im Maßstab 2:1 vergrößerte Teilschnittansicht, die eine Rasteinrichtung im Gehäuse und eine Nut im Bajonettring veranschaulicht,
Fig. 5
eine im Maßstab 2:1 vergrößerte Ansicht eines im Bajonettring gelagerten Stößels von vorne und von der Seite und
Fig. 6
eine perspektivische, vergrößerte Ansicht der in Fig. 4c in Seitenansicht dargestellten Ringscheibe.
The invention is further explained below with the aid of preferred exemplary embodiments and the drawing. The drawing shows:
Fig. 1a
a side view of the plug in the unlocked position,
Fig. 1b
2 shows a sectional view along line AA in FIG. 1a,
Fig. 1c
1 a, seen in the direction of arrow B in FIG. 1 b,
Fig. 2a
a view of the connector in the unlocked position,
Fig. 2b
2 shows a sectional view of the plug along line AA in FIG. 1a, but in the locked position,
Fig. 2c
2 a, seen in the direction of arrow C in FIG. 2 b,
Fig. 2d
a partial sectional view of the can lid with one-handed unlocking,
Fig. 3a
a partial side sectional view of the connector in the unlocked position,
Fig. 3b
3 shows a sectional view of the plug along line CC in FIG. 3a,
3c to 3f
the plug in different insertion positions,
Fig. 4a
a partial sectional top view of the plug,
Fig. 4b
3 shows a sectional view of the plug along line AA in FIG. 4a,
Fig. 4c
a side view of an annular disc provided between the housing and the cover platform,
Fig. 4d
3 shows a sectional view along line BB in FIG. 4A,
Fig. 4e
2: 1 enlarged partial sectional view, which illustrates a locking device in the housing and a groove in the bayonet ring,
Fig. 5
a 2: 1 enlarged view of a tappet mounted in the bayonet ring from the front and from the side and
Fig. 6
a perspective, enlarged view of the ring disk shown in Fig. 4c in side view.

Die in der Zeichnung dargestellten Ausführungsbeispiele des erfindungsgemäßen Steckers beziehen sich auf einen dreizehnpoligen Stecker nach DIN-Entwurf 72570, Teil 1. Selbstverständlich ist der Anwendungsbereich viel weiter und die Darstellung dient lediglich zur Veranschaulichung des Erfindungsprinzips.The exemplary embodiments of the connector according to the invention shown in the drawing relate to a thirteen-pin connector according to DIN draft 72570, part 1. Of course, the area of application is much wider and the illustration serves only to illustrate the principle of the invention.

Der dargestellte Stecker ist für eine Steckverbindung für einen elektrischen Anschluß von Kraftfahrzeuganhängern vorgesehen. Er umfaßt ein Gehäuse 10, einen verdrehbaren Bajonettring 20 und eine Deckelplattform 30 sowie ein Zwischenstück 40, wie z.B. aus Fig. 1a ersichtlich ist. Die Deckelplattform 30 dient zur Auflage eines Dosendeckels 50 bei geöffneter Steckdose. Diese ist mit Vorsprüngen, z.B. Randnasen (vgl. Fig. 3d), für einen Eingriff in entsprechende Bajonettnuten 22 versehen.The connector shown is provided for a plug connection for an electrical connection of motor vehicle trailers. It comprises a housing 10, a rotatable bayonet ring 20 and a cover platform 30 and an intermediate piece 40, e.g. 1a can be seen. The lid platform 30 serves to support a can lid 50 when the socket is open. This is with protrusions, e.g. Edge tabs (cf. FIG. 3d), for engagement in corresponding bayonet grooves 22.

Die Deckelplattform 30, das Zwischenstück 40 und der Bajonettring 20 sind im veranschaulichten Ausführungsbeispiel einstückig ausgebildet. Der Bajonettring 20 ist mit einem Nockenvorsprung 24 versehen, der sich radial nach außen erstreckt (vgl. Fig. 1b, 2b) Der Nockenvorsprung 24 ist von außen deutlich erkennbar in der jeweiligen Stellung und greift unter einen entsprechenden seitlichen Vorsprung im Randbereich 52 des Dosendeckels 50, der auf der Innenseite mit Verstärkungsrippen 54 ausgebildet ist. In Fig. 2b ist der Nockenvorsprung 24 mit einer scharfkantigen Nase 26 ausgebildet, die fest unter dem Randbereich 52 in diesen eingreift, wenn sich der Bajonettring 20 in der verriegelten Stellung befindet. Bei der Variante gemäß Fig. 2d ist der Nockenvorsprung mit einer abgerundeten Nase 28 für eine leichtere Entriegelung versehen.The cover platform 30, the intermediate piece 40 and the bayonet ring 20 are formed in one piece in the illustrated exemplary embodiment. The bayonet ring 20 is provided with a cam projection 24 which extends radially outward (see FIGS. 1b, 2b). The cam projection 24 is clearly recognizable from the outside in the respective position and engages under a corresponding lateral projection in the edge area 52 of the can lid 50 which is formed on the inside with reinforcing ribs 54. In Fig. 2b, the cam projection 24 is formed with a sharp-edged nose 26 which engages firmly under the edge region 52 when the bayonet ring 20 is in the locked position. In the variant according to FIG. 2d, the cam projection is provided with a rounded nose 28 for easier unlocking.

Im Bajonettring 20 ist eine Aussparung 60 als Sichtfenster auf das Gehäuse 10 vorgesehen. Die Aussparung 60 gibt je nach Stellung eine Beschriftung "verriegelt" bzw. "entriegelt" frei, so daß die jeweilige Steckerstellung leicht ersichtlich ist.A recess 60 is provided in the bayonet ring 20 as a viewing window on the housing 10. The recess 60 releases a label "locked" or "unlocked" depending on the position, so that the respective plug position is easily visible.

Der Bajonettring 20 ist am hinteren Ende mit einer fluchtend ausgebildeten Kappe 62 fest verbunden. Am vorderen Ende ist er mit einem Hals 64 ausgebildet, in dem sich die Bajonettnuten 22 befinden. Am rückwärtigen Ende trägt das Gehäuse 10 einen drehbaren Aufsatz 66, der die Abdichtung des Steckers sicherstellt.The bayonet ring 20 is firmly connected at the rear end with an aligned cap 62. At the front end it is formed with a neck 64 in which the bayonet grooves 22 are located. At the rear end, the housing 10 carries a rotatable attachment 66, which ensures the sealing of the plug.

Zwischen dem Gehäuse 10 und dem Bajonettring 20 ist eine Ringscheibe 70 angeordnet. Wie insbesondere deutlich aus der perspektivischen Ansicht von Fig. 6 hervorgeht, weist die Ringscheibe 70 einen festen Verankerungsvorsprung 72 und einen federnden Vorsprung 74 auf. Mit dem Verankerungsvorsprung 72 greift die Ringscheibe 70 in eine Aussparung bzw. Nut 12 im Gehäuse 10 fest ein. Der federnde Vorsprung 74 ragt in eine Aussparung 68 im Bajonettring 20, wie am besten aus Fig. 3c ersichtlich ist.An annular disk 70 is arranged between the housing 10 and the bayonet ring 20. As can be seen particularly clearly from the perspective view of FIG. 6, the annular disk 70 has a fixed anchoring projection 72 and a resilient projection 74. With the anchoring projection 72, the washer 70 firmly engages in a recess or groove 12 in the housing 10. The resilient projection 74 protrudes into a recess 68 in the bayonet ring 20, as can best be seen from FIG. 3c.

Ein Stößel 80 ist im Bajonettring 20 axial verstellbar gelagert. Sein am hinteren Ende befindlicher Kopf 82 steht mit dem federnden Vorsprung 74 der Ringscheibe 70 in Eingriff. In Fig. 3a ist der Stößel in der vorderen Stellung entsprechend der Entriegelungsstellung des Steckers dargestellt, während die Verstellbewegung des Stößels 80 mittels am Steckdosenhals 2 befindlicher Randnasen 4 in Fig. 3d und 3e veranschaulicht ist. Durch diese Verstellbewegung des Stößels 80 wird der federnde Vorsprung 74 der Ring scheibe 70 in die Ringscheibenebene gedrückt derart, daß der Kopf 82 des Stößels 80 in eine Drehnut 14 im Gehäuse 10 gelangt, in der der Kopf 82 bei Verdrehung des Bajonettrings führbar ist. Die Drehnut 14 weist am Ende eine Rastnase 16 auf, an die sich eine Verriegelungsaussparung 18 anschließt. Die Verriegelungsaussparung 18 dient für den Eingriff des Schaftes 84 des Stößels 80 und ist mit der Bajonettrasterung, d.h. den Bajonettnuten 20, ausgerichtet. Im Bajonettring 20 ist eine Nut 58 für die Rastnase 16 vorgesehen.A plunger 80 is axially adjustable in the bayonet ring 20. Its head 82 located at the rear end engages with the resilient projection 74 of the annular disk 70. In Fig. 3a the plunger is shown in the front position corresponding to the unlocked position of the plug, while the adjustment movement of the plunger 80 is illustrated by means of edge tabs 4 located on the socket neck 2 in Fig. 3d and 3e. Through this adjustment movement of the plunger 80, the resilient projection 74 becomes the ring disk 70 pressed into the plane of the annular disk such that the head 82 of the plunger 80 arrives in a rotary groove 14 in the housing 10, in which the head 82 can be guided when the bayonet ring is rotated. The rotary groove 14 has a locking lug 16 at the end, to which a locking recess 18 connects. The locking recess 18 serves for the engagement of the shaft 84 of the plunger 80 and is aligned with the bayonet catch, ie the bayonet grooves 20. In the bayonet ring 20, a groove 58 is provided for the detent 16.

In Fig. 3a ist ein im Gehäuse 10 aufgenommener Kontakteinsatz 90 mit Steckerkontaktstiften 92 veranschaulicht.3a shows a contact insert 90 with plug contact pins 92 accommodated in the housing 10.

Im folgenden wird die Verdrehung des Bajonettrings 20 mit Verriegelung/Entriegelung erläutert. Wenn der Stecker nicht in die Steckdose eingesteckt ist, befindet sich der Stecker in der entriegelten Position. Hierbei sind das Gehäuse 10 und der Bajonettring 20 mittels der Ringscheibe 70 fest, d.h. unverdrehbar, verbunden. Wird dann der Stecker mit nach dem Dosendeckel 50 ausgerichteter Deckelplattform 30 in die Steckdose eingeführt, dringen die am Steckdosenhals 2 vorgesehenen Randnasen 4 (z.B. 3) in die axialen Abschnitte der Bajonettnuten 22 ein, wobei sie zugleich den Stößel 80 nach hinten verschieben. Der Stößel 80 drückt dabei den federnden Vorsprung 74 der Ringscheibe 70 nach hinten, so daß der Bajonettring 20 und das Gehäuse 10 nicht mehr verdrehsicher miteinander gekoppelt sind.The rotation of the bayonet ring 20 with locking / unlocking is explained below. If the plug is not inserted in the socket, the plug is in the unlocked position. Here, the housing 10 and the bayonet ring 20 are fixed by means of the washer 70, i.e. non-rotatable, connected. If the plug is then inserted into the socket with the cover platform 30 aligned with the socket cover 50, the edge lugs 4 (e.g. 3) provided on the socket neck 2 penetrate into the axial sections of the bayonet grooves 22, while at the same time pushing the plunger 80 backwards. The plunger 80 presses the resilient projection 74 of the ring disk 70 to the rear, so that the bayonet ring 20 and the housing 10 are no longer coupled to one another in a rotationally secure manner.

In dieser Stellung ist es möglich, den Bajonettring 20 zu verdrehen, wobei der Stößel 80 in der Drehnut 14 im Gehäuse 10 geführt wird und gegen eine Rückverstellung nach vorne gesichert ist.In this position it is possible to turn the bayonet ring 20, the plunger 80 being guided in the rotary groove 14 in the housing 10 and being secured against a forward adjustment.

Bei der Verdrehung des Bajonettrings 20 in die Verriegelungsstellung gleitet der Schaft 84 des Stößels 80 leicht über die gewölbte Außenfläche des Gehäuses 10, bis er zur Rastnase 16 gelangt. Infolge der Elastizität des aus Kunststoff hergestellten Gehäuses 10 und des Bajonettrings 20 kann der Schaft 84 über die Rastnase 16 hinweg gedreht werden und rastet in der Verriegelungsaussparung 18 ein, wodurch der Stecker zusätzlich verriegelt ist.When the bayonet ring 20 is rotated into the locking position, the shaft 84 of the plunger 80 slides easily over the curved outer surface of the housing 10 until it reaches Latch 16 arrives. As a result of the elasticity of the housing 10 made of plastic and the bayonet ring 20, the shaft 84 can be rotated beyond the locking lug 16 and snaps into the locking recess 18, as a result of which the plug is additionally locked.

Zur Entriegelung muß zunächst ein höheres Drehmoment als für die Verriegelung aufgewendet werden, damit der Schaft 84 über die Nase 1 hinweggelangen kann. Ansonsten laufen bei der Entriegelung die Vorgänge umgekehrt zum Verriegelungsvorgang ab.A higher torque than that for the locking must first be used for unlocking so that the shaft 84 can get over the nose 1. Otherwise, when unlocking, the processes are reversed to the locking process.

Claims (12)

  1. A plug for a plug connection for an electrical termination, especially for vehicle trailers, comprising a housing, a bayonet connecting part with a rotatable bayonet ring and a cover plate, characterized in that the cover plate (30) and the housing (10) are connected rigidly with each other.
  2. A plug according to Claim 1 characterized in that the cover plate (30) and the housing (10) are formed as one piece.
  3. A plug according to Claim 1 or 2, characterized in that an intermediate piece (40) is included within the cover plate/housing (30,10) connection.
  4. A plug according to any of Claims 1 to 3 characterized in that the bayonet ring (20) comprises a cam projection (24) which can be latched with the cover plate (30).
  5. A plug according to Claim 4 characterized in that the cam projection (24) has a sharp cornered nose (26).
  6. A plug according to Claim 4 characterized in that the cam projection has a rounded off nose (28).
  7. A plug according to any of Claims 4 to 6 characterized in that an aperture (60) is provided in the bayonet ring (20) as a viewing window onto the housing.
  8. A plug according to any of Claims 1 to 7 characterized in that a cap (62) is rigidly attached to the bayonet ring (20), which is provided at its other end with a neck (64) having the bayonet groove (22).
  9. A plug according to Claim 3 characterized in that an annular disc having an anchoring projection (72) and a resilient projection (74) is arranged between the housing (10) and the bayonet ring (20), a recess (12) is provided in the housing for the anchoring projection, and a recess (68) is provided in the bayonet ring for the resilient projection.
  10. A plug according to any of Claims 1 to 9 characterized in that a push-rod (80) is carried axially displaceable in the bayonet ring (20), and the push-rod is engaged with said resilient projection (74) by means of a head (82) orovided at the rear end of the push-rod (80), and for this head a rotational groove (14) is provided in the housing (10).
  11. A plug according to Claim 10, characterized in that the rotational groove (14) has at its end an abutment nose (16) which limits a latching opening (18) and is adapted as the resting-place of the bayonet ring (20).
  12. A plug according to Claim 11, characterized in that a groove for the abutment nose (16) is provided in the bayonet ring (20).
EP89116046A 1988-09-03 1989-08-31 Plug for a plug and socket connection Expired - Lifetime EP0358101B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3830051A DE3830051A1 (en) 1988-09-03 1988-09-03 PLUG FOR A CONNECTOR
DE3830051 1988-09-03

Publications (3)

Publication Number Publication Date
EP0358101A2 EP0358101A2 (en) 1990-03-14
EP0358101A3 EP0358101A3 (en) 1991-07-24
EP0358101B1 true EP0358101B1 (en) 1994-11-23

Family

ID=6362276

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89116046A Expired - Lifetime EP0358101B1 (en) 1988-09-03 1989-08-31 Plug for a plug and socket connection

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EP (1) EP0358101B1 (en)
AT (1) ATE114388T1 (en)
DE (2) DE3830051A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4210734A1 (en) * 1992-04-01 1993-10-07 Lts Lichttechnik Gmbh LV electrical coaxial connector - has terminal block secured to wall and having pair of screw clamps connecting to internal conductors with integral contact bushes for plug pins
IT1257088B (en) * 1992-09-04 1996-01-05 Giorgio Pasotto PLUG FOR ELECTRIC CONNECTORS FOR CONNECTION BETWEEN A TRAILING VEHICLE AND A TRAILED VEHICLE.
DE4412000C1 (en) * 1994-04-07 1995-06-01 Monika Ruettgerodt Electrical connector for providing electrical connections to vehicle trailer
US20020028288A1 (en) 2000-06-14 2002-03-07 The Procter & Gamble Company Long lasting coatings for modifying hard surfaces and processes for applying the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3239791A (en) * 1964-12-17 1966-03-08 Clas O F Fyrk Electrical disconnect coupling
DE8615641U1 (en) * 1986-06-10 1986-11-13 Erich Jaeger Gmbh & Co Kg, 6380 Bad Homburg, De

Also Published As

Publication number Publication date
ATE114388T1 (en) 1994-12-15
EP0358101A2 (en) 1990-03-14
DE58908656D1 (en) 1995-01-05
EP0358101A3 (en) 1991-07-24
DE3830051A1 (en) 1990-03-15

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