DE1000084B - Two-pole plug with earthing pin with transversely divided housing and lateral cable feed - Google Patents

Description

GERMAN

Since many electrical devices are already used in households, it is necessary to use them To equip devices, especially if they have a metallic housing, with an earthing protection. The earthing contact plugs used up to now for two-pole connections are compared to those in the household often used very small devices too big. Their production is also expensive, so that it has so far failed to equip household appliances with an earthing contact plug.

However, one can no longer avoid the danger of those handing the electrical devices protect and therefore endeavors to attach a safety plug to all these small devices.

The transversely divided design of a plug is particularly suitable for a flat design, whereby also the connector housing does not stick out too much from the wall socket. There are also plugs with and without flat grounding pin in this type known, in which the cable is fed from the side and the Contact pins are arranged or stored in the remote from the socket part of the housing. The connection of the two housing halves is done by rivets, screws or the like, including special fasteners must be present.

The invention relates to a two-pole plug with a grounding pin, consisting of a transversely divided Housing with preferably lateral cable entry, in which at least the one designed as a flat pin Earthing pin in the housing half away from the socket by pressing in, riveting or the like. Is held.

The invention now proposes a plug which, apart from the fact that it is handy in the In use and cheap to manufacture, has yet another improvement, which is that the housing part facing the socket and penetrated by the pins by turning the Flat pin is held together about its longitudinal axis with the other housing part. Through this come the connecting elements necessary for the known connectors for the two housing halves in failure.

A special embodiment of the invention is that the grounding pin on both of its Has narrow sides incisions that allow easy twisting of the pin end or to engage serve a snap ring.

There is a recess around the grounding pin so that the pin does not twist too far A cam is attached in the lower part of the housing, which serves as a stop for the pin.

In the grounding pin, inside the housing, there is a two-pin plug with an earthing pin

with transversely divided housing and side

Cable feed

Applicant:

Busch-Jaeger Dürener Metallwerke
Aktiengesellschaft, Lüdenscheid

Heinrich Busch, Lüdenscheid (Westphalia)
has been named as the inventor

2

another rag attached to hold the earth closure screw records. To check the connections, the housing part facing the socket consists of a transparent insulating material that contains an indication of the importance of the earth connection *.

In the drawing, the invention is shown in eight figures on the basis of some exemplary embodiments illustrated. Herein shows

Fig. Ι the connector in vertical section, before turning the center pin,

Fig. 2 the ready-to-use plug,
Fig. 3 the plug with the center pin in a different position in the lid,

Fig. 4 the plug, the one facing the socket Housing part has a recess with a stop cam,

Fig. 5 is a top view of the open connector,
Fig. 6 one such on the closed plug,

Fig. 7 the arrangement of the grounding pin with an angled rag and

Fig. 8 the upper face of the plug with a transparent housing part.

As shown in Figs. 1 to 4, the new connector consists of the. two housing parts 1 and 2. In the Part 1 remote from the socket are all three pins; H. the two pole pins 3 and 4 and the Ground pin 5, arranged. Either all three pins or only the ground pin 5 are in the Lid 1 pressed in. The grounding pin 5 can also be riveted to the housing or to another Way to be fixed in this (Fig. 4). If the two pole pins 3 and 4 are only loosely inserted in the cover 1 they each have a collar 6 (Fig. 2

and 3), with which they are supported on the other housing part 2. In the housing part 2 are also Feed-through openings are provided for the three pins. After assembling the housing parts ι and 2 is used to hold the same together

the end 8 (Fig. i) of the grounding pin 5 is twisted by a small angle with respect to its opening in the housing part. The pin 5 has 8 recesses 9 and 10 for easy rotation of its end part (Fig. 1). In order not to twist the pin end 8 protruding from the housing too much, the housing part 2 has a stop 11 which is seated in a recess 12 (Fig. 4) arranged around the pin bushing 7 (Fig. 6).

Due to the inclination of the earth pin 5 (Fig. S), the three terminal screws 13, 14 and IS distributed so favorably for the feeder wires that no screw is in contact with another comes. However, if the earthing pin (Fig. 3 and 7) is placed in an upright position in the housing, then this receives a tab 17 which receives the grounding screw 14. The housing part 2 is held in this case by a locking ring 18 (Fig. 3) inserted into the recess 12, which is shown in the recesses 9 and 10 of the grounding pin snap into place.

The housing part 2 (Fig. 8) can also advantageously consist of transparent material, so that of the It is easy to see from the pin side whether the earth wire is actually connected to the earth contact. An inscription 16 pressed into the end face of the housing part 2 can also indicate the meaning of the earth connection. The side wall of the transparent housing part 2 can through a coat of paint can be made opaque.

Claims (7)

PATENT CLAIMS: i. Two-pole plug with earthing pin, consisting of a transversely divided housing with preferably lateral cable feed, in which at least the one designed as a flat pin Earthing pin in the housing half away from the socket by pressing in, riveting or the like. is held, characterized in that the socket facing and by the pins (3, 4, 5) penetrated housing part (2) by twisting the pin end (8) around the longitudinal axis of the Grounding pin (5) with the other housing part (I) is held together. 2. Plug according to claim 1, characterized in that the grounding pin (5) at its has recesses (9, 10) on both narrow sides which allow the end of the pin to twist slightly (8) enable or serve to engage a snap ring (18). 3. Plug according to claims 1 and 2, characterized in that the one facing the socket Housing part (2) outside and around the bushing (7) for the grounding pin (5) a Has recess (12) in which a stop (II) limits the range of rotation of the pin (8). 4. Plug according to claim 3, characterized in that the recess (12) for the accommodation of the resilient holding member (18) is used. 5. Connector according to claims 1 to. 4, characterized in that a tab (17) which receives the earth connection screw (14) is arranged on the grounding pin (5) designed as a flat pin within the housing (1, 2). 6. Plug according to claims 1 to 5, characterized in that the one facing the socket Housing part (2) consists of a transparent insulation material and a pressed-in one Contains inscription as an indication of the importance of the earth connection. 7. Plug according to claim 6, characterized in that the side wall of the transparent Housing part (2) is made opaque with a coat of paint. Considered publications:
German Patent No. 724861. 1 sheet of drawings © 609 73i 12.56