DE1026822B - Electrical plug with central pin and concentric contacts or contact sockets for optional connection to sockets with different sizes and positions of the contacts - Google Patents

Description

GERMAN

The invention relates to an electrical connector, in particular an adapter plug, for optional Connection to sockets with different sizes and positions of the contacts, especially for tapping different voltages in motor vehicles. There are known connectors that have a central pin and for this purpose concentric contacts or contact sockets are formed. Here he was the second Pole-forming contact or the contact socket opposite the central connector pin in the axial direction staggered. The possibility of connecting to sockets of different sizes and locations there was no contact here. It is also an electrical connection device for a device known, which consists of several, each designed as a structural unit and removable parts. An electrical connection was made to all parts of the device at the same time made a pin with two contact sockets.

The optional connection to sockets of different sizes and positions of the contacts was with a '- ■ such a connection device is not possible. It is also known to have an adapter plug for connection of electrical devices, e.g. B. of electric shavers to use in motor vehicles. Here has the possibility is created in the plug body by installing a resistor that can be switched on and off different voltages, e.g. B. 6 and 12 volts to tap. These well-known adapter plugs, in particular for the connection of devices in motor vehicles, but were designed so that they were only suitable for plugging into sockets of a certain diameter. However, since the motor vehicles Different companies are equipped with different sockets, it was necessary to use adapter plugs different types, d. H. with different pin diameters to be used. Besides, they had known adapter plugs, which are suitable for tapping different voltages, the disadvantage that the respectively connected voltage and polarity could not be recognized without further ado, so that it could come to a wrong connection.

The invention has set itself the task of avoiding the disadvantages mentioned and of creating a plug which allows an optional connection to sockets of different sizes and positions of the contacts in the simplest possible way. According to the invention, in addition to a central plug pin, the plug has at least two concentric contacts or contact sockets arranged at different radial and axial distances from the central plug pin, of which only one contact or contact socket is optionally available together with the central plug pin for the electrical plug with central
Connector pin and concentric to this

Contacts or contact sockets

for optional connection to sockets

with different size and location

of contacts

Applicant:
Otto Hübner, Munich 27, Grüntal 33

Otto Hübner, Munich,
has been named as the inventor

Effect comes. The central connector pin is designed to be resilient in the axial direction. Depending on its axial position it comes into effect with one or the other contact socket in the socket. There are several contacts on the plug, in particular plug sleeves for tapping different voltages arranged. These contacts or connector sleeves are in a particularly cylindrical housing housed, which has a particular rotatable and firmly lockable cover that optionally releases only two contacts for tapping a certain voltage and polarity.

In FIGS. 1 to 3, the invention is based on an exemplary embodiment explained in more detail. FIGS. 1 and 2 show an adapter plug in side view, which has a central plug pin 1 which is surrounded by an insulating bushing 2. on the insulating bushing 2 is a contact bushing 3, to which a cylindrical insulating body 4 is connected, which has a larger diameter than the contact socket 3 and is provided with a contact 5 is. The contact socket 3 is suitable for sockets with a smaller diameter. Contact 5, which sits on the cylindrical extension 4 comes into effect when sockets with a larger diameter should be used. The same plug can therefore be used for different sockets will. The plug pin 1 has a groove 6 into which a spring catch or the like snaps when the Socket 3 comes into effect.

In addition, the central plug pin 1 is arranged resiliently in the axial direction, so that it can be used in the event that that the contact 5 comes into effect, rests resiliently on the corresponding contact of the socket. The spring action between the connector

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Pin 1 and contact 5 must be adjusted so that the springiness of the plug pin 1 does not touch the contact 5 pushes out.

On the approach 4 a connector housing 7 is attached, which carries the connector sleeves,

In Fig. 3 the connector is shown in a view from above, From which it can be seen that a plug sleeve 8 and 9 is provided for the + and - poles. to The connector sleeves 10, 11, 12 and 13 are still located on both sides of these two connector sleeves. For example, between 8 and 10 a voltage of 6 volts, between 8 and 11 a voltage of 12 volts can be tapped. For motor-driven devices that have a certain polarity of the Require connection, the same voltages with corresponding polarity reversal between the Connector sleeves 9 and 12 and 9 and 13 are tapped.

In the connector housing 7, a series resistor is arranged in a known manner, which in the Drawing is not shown in order to tap different voltages can.

The connector sleeves are covered by a cover 14 which has a recess 15 and is rotatable. This makes it possible, by turning the cover 14, only taps of the respectively desired ones Release voltages and polarity. The cover 14 can by a screw 16 or can be set in the respective position by a detent not shown in the drawing.

Claims (4)

Patent claims: 1.Electric connector with a central connector pin and concentric contacts or Contact sockets for optional connection to sockets of different sizes and positions the contacts, especially adapter plugs for tapping different voltages, e.g. Am Motor vehicles, characterized in that the plug apart from the central plug pin (6) at least two arranged at different radial and axial distances from the central connector pin has concentric contacts (3, 5) or contact sockets, of which, optionally, accordingly the present socket only one contact or one contact socket together with the central connector pin comes into effect. 2. Electrical connector according to claim 1, characterized in that the central connector pin is designed to be resilient in the axial direction. 3. Electrical connector according to claim 1, characterized in that the plug contacts (6, 3, 5) several contacts (8 to 13), in particular connector sleeves for tapping different voltages assigned. 4. Electrical connector according to claims 1 and 2, characterized in that the contacts (8 to 13) for tapping the various voltages in a particularly cylindrical housing (7) are housed, which is a particularly rotatable and firmly latchable cover (14) has, the optional only two contacts for tapping a certain voltage and Enables polarity. Considered publications:
German Patent No. 673,634;
U.S. Patent No. 2,228,683. 1 sheet of drawings © 709 957/324 3.58